From 0bd9ce052f695be12d5f329dacdde57c2b59d9ce Mon Sep 17 00:00:00 2001 From: arpi Date: Fri, 23 Jan 2004 21:34:28 +0000 Subject: mkv.cpp -> mkv_old.cpp, to avoid dependency name collision with mkv.c git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11837 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpdemux/Makefile | 2 +- libmpdemux/demux_mkv.cpp | 3182 ------------------------------------------ libmpdemux/demux_mkv_old.cpp | 3182 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 3183 insertions(+), 3183 deletions(-) delete mode 100644 libmpdemux/demux_mkv.cpp create mode 100644 libmpdemux/demux_mkv_old.cpp diff --git a/libmpdemux/Makefile b/libmpdemux/Makefile index ff6b288380..ab6191554f 100644 --- a/libmpdemux/Makefile +++ b/libmpdemux/Makefile @@ -30,7 +30,7 @@ ifeq ($(MATROSKA_INTERNAL),yes) SRCS += demux_mkv.c ebml.c endif ifeq ($(MATROSKA_EXTERNAL),yes) -CPLUSPLUSSRCS += demux_mkv.cpp +CPLUSPLUSSRCS += demux_mkv_old.cpp endif diff --git a/libmpdemux/demux_mkv.cpp b/libmpdemux/demux_mkv.cpp deleted file mode 100644 index 47f3b4cbfc..0000000000 --- a/libmpdemux/demux_mkv.cpp +++ /dev/null @@ -1,3182 +0,0 @@ -// Matroska demuxer -// written by Moritz Bunkus -// License: GPL of course ;) - -// $Id$ - -extern "C" { -#include "config.h" -} - -#ifdef HAVE_MATROSKA - -#include - -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include -#include -#include -#include -#if LIBMATROSKA_VERSION >= 000503 -#include -#endif -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -extern "C" { -#include -#include -#include -#include - -#ifdef HAVE_ZLIB -#include -#endif - -#include "../mp_msg.h" -#include "../help_mp.h" -#include "stream.h" -#include "demuxer.h" -#include "stheader.h" - -#include "../subreader.h" -#include "../libvo/sub.h" - -} - -#include "matroska.h" - -using namespace libebml; -using namespace libmatroska; -using namespace std; - -#if LIBEBML_VERSION < 000500 -#error libebml version too old - need at least 0.5.0 -#endif - -// for e.g. "-slang ger" -extern char *dvdsub_lang; -extern char *audio_lang; -// for "-chapter x-y" -extern int dvd_chapter; -extern int dvd_last_chapter; - -// default values for Matroska elements -#define MKVD_TIMECODESCALE 1000000 // 1000000 = 1ms - -#define MKV_SUBTYPE_TEXT 1 -#define MKV_SUBTYPE_SSA 2 -#define MKV_SUBTYPE_VOBSUB 3 - -#define MKV_SUBCOMPRESSION_NONE 0 -#define MKV_SUBCOMPRESSION_ZLIB 1 - -#define safefree(m) { if (m != NULL) free(m); } -void *safemalloc(int bytes) { - void *dst; - - dst = malloc(bytes); - if (dst == NULL) { - mp_msg(MSGT_DEMUX, MSGL_FATAL, "[mkv] Could not allocate %d bytes of " - "memory.\n", bytes); - exit(1); - } - - return dst; -} - -void *safememdup(const void *src, int bytes) { - void *dst; - - dst = safemalloc(bytes); - memcpy(dst, src, bytes); - - return dst; -} - -class mpstream_io_callback: public IOCallback { - private: - stream_t *s; - public: - mpstream_io_callback(stream_t *stream); - - virtual uint32 read(void *buffer, size_t size); - virtual void setFilePointer(int64 offset, seek_mode mode = seek_beginning); - virtual size_t write(const void *buffer, size_t size); - virtual uint64 getFilePointer(); - virtual void close(); -}; - -mpstream_io_callback::mpstream_io_callback(stream_t *stream) { - s = stream; -} - -uint32 mpstream_io_callback::read(void *buffer, size_t size) { - uint32_t result; - - result = stream_read(s, (char *)buffer, size); - - return result; -} - -void mpstream_io_callback::setFilePointer(int64 offset, seek_mode mode) { - int64 new_pos; - - if (mode == seek_beginning) - new_pos = offset + s->start_pos; - else if (mode == seek_end) - new_pos = s->end_pos - offset; - else - new_pos = s->pos + offset; - - if (new_pos > s->end_pos) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek warning: new_pos %lld > end_pos " - "%lld\n", new_pos, s->end_pos); - return; - } - - stream_seek(s, new_pos); -} - -size_t mpstream_io_callback::write(const void */*buffer*/, size_t /*size*/) { - return 0; -} - -uint64 mpstream_io_callback::getFilePointer() { - return s->pos - s->buf_len + s->buf_pos; -} - -void mpstream_io_callback::close() { -} - -typedef struct mkv_index_entry { - uint64_t timecode, filepos; - int is_key; -} mkv_index_entry_t; - -typedef struct mkv_track_index { - uint32_t tnum; - int num_entries; - mkv_index_entry_t *entries; -} mkv_track_index_t; - -typedef struct { - uint32_t order, type, scope; - uint32_t comp_algo; - unsigned char *comp_settings; - uint32_t comp_settings_len; - uint32_t enc_algo, sig_algo, sig_hash_algo; - unsigned char *enc_keyid, *sig_keyid, *signature; - uint32_t enc_keyid_len, sig_keyid_len, signature_len; -} mkv_content_encoding_t; - -typedef struct { - int64_t start, end; -} mkv_chapter_t; - -typedef struct mkv_track { - uint32_t tnum, xid; - - char *codec_id; - int ms_compat; - char *language; - - char type; // 'v' = video, 'a' = audio, 's' = subs - - char v_fourcc[5]; - uint32_t v_width, v_height, v_dwidth, v_dheight; - float v_frate; - - uint32_t a_formattag; - uint32_t a_channels, a_bps; - float a_sfreq; - - float default_duration; - - int default_track; - - void *private_data; - unsigned int private_size; - - // For Vorbis audio - unsigned char *headers[3]; - uint32_t header_sizes[3]; - - int ok; - - // Stuff for RealMedia - bool realmedia; - demux_packet_t *rm_dp; - int rm_seqnum, rv_kf_base, rv_kf_pts; - float rv_pts; // previous video timestamp - float ra_pts; // previous audio timestamp - - // Stuff for QuickTime - bool fix_i_bps; - float qt_last_a_pts; - - // Stuff for VobSubs - mkv_sh_sub_t sh_sub; - - // Generic content encoding support. - vector *c_encodings; -} mkv_track_t; - -typedef struct mkv_demuxer { - float duration, last_pts; - uint64_t last_filepos; - - mkv_track_t **tracks; - int num_tracks; - mkv_track_t *video, *audio, *subs_track; - - uint64_t tc_scale, cluster_tc, first_tc; - - mpstream_io_callback *in; - - uint64_t clear_subs_at[SUB_MAX_TEXT]; - - subtitle subs; - int subtitle_type; - - EbmlStream *es; - EbmlElement *saved_l1, *saved_l2; - KaxSegment *segment; - KaxCluster *cluster; - - mkv_track_index_t *index; - int num_indexes, cues_found, cues_searched; - int64_t *cluster_positions; - int num_cluster_pos; - vector *parsed_seekheads; - vector *parsed_cues; - - int64_t skip_to_timecode; - bool v_skip_to_keyframe, a_skip_to_keyframe; - - vector *chapters; // No support for nested chapters atm. - uint64_t stop_timecode; -} mkv_demuxer_t; - -typedef struct { - uint32_t chunks; // number of chunks - uint32_t timestamp; // timestamp from packet header - uint32_t len; // length of actual data - uint32_t chunktab; // offset to chunk offset array -} dp_hdr_t; - -#if __GNUC__ == 2 -#pragma pack(2) -#else -#pragma pack(push,2) -#endif - -typedef struct { - uint32_t size; - uint32_t fourcc1; - uint32_t fourcc2; - uint16_t width; - uint16_t height; - uint16_t bpp; - uint32_t unknown1; - uint32_t fps; - uint32_t type1; - uint32_t type2; -} real_video_props_t; - -typedef struct { - uint32_t fourcc1; // '.', 'r', 'a', 0xfd - uint16_t version1; // 4 or 5 - uint16_t unknown1; // 00 000 - uint32_t fourcc2; // .ra4 or .ra5 - uint32_t unknown2; // ??? - uint16_t version2; // 4 or 5 - uint32_t header_size; // == 0x4e - uint16_t flavor; // codec flavor id - uint32_t coded_frame_size; // coded frame size - uint32_t unknown3; // big number - uint32_t unknown4; // bigger number - uint32_t unknown5; // yet another number - uint16_t sub_packet_h; - uint16_t frame_size; - uint16_t sub_packet_size; - uint16_t unknown6; // 00 00 - uint16_t sample_rate; - uint16_t unknown8; // 0 - uint16_t sample_size; - uint16_t channels; -} real_audio_v4_props_t; - -typedef struct { - uint32_t fourcc1; // '.', 'r', 'a', 0xfd - uint16_t version1; // 4 or 5 - uint16_t unknown1; // 00 000 - uint32_t fourcc2; // .ra4 or .ra5 - uint32_t unknown2; // ??? - uint16_t version2; // 4 or 5 - uint32_t header_size; // == 0x4e - uint16_t flavor; // codec flavor id - uint32_t coded_frame_size; // coded frame size - uint32_t unknown3; // big number - uint32_t unknown4; // bigger number - uint32_t unknown5; // yet another number - uint16_t sub_packet_h; - uint16_t frame_size; - uint16_t sub_packet_size; - uint16_t unknown6; // 00 00 - uint8_t unknown7[6]; // 0, srate, 0 - uint16_t sample_rate; - uint16_t unknown8; // 0 - uint16_t sample_size; - uint16_t channels; - uint32_t genr; // "genr" - uint32_t fourcc3; // fourcc -} real_audio_v5_props_t; - -// I have to (re)define this struct here because g++ will not compile -// components.h from the qtsdk if I include it. -typedef struct { - uint32_t id_size; - uint32_t codec_type; - uint32_t reserved1; - uint16_t reserved2; - uint16_t data_reference_index; - uint16_t version; - uint16_t revision; - uint32_t vendor; - uint32_t temporal_quality; - uint32_t spatial_quality; - uint16_t width; - uint16_t height; - uint32_t horizontal_resolution; // 32bit fixed-point number - uint32_t vertical_resolution; // 32bit fixed-point number - uint32_t data_size; - uint16_t frame_count; - char compressor_name[32]; - uint16_t depth; - uint16_t color_table_id; -} qt_image_description_t; - -#if __GNUC__ == 2 -#pragma pack() -#else -#pragma pack(pop) -#endif - -static uint16_t get_uint16(const void *buf) { - uint16_t ret; - unsigned char *tmp; - - tmp = (unsigned char *) buf; - - ret = tmp[1] & 0xff; - ret = (ret << 8) + (tmp[0] & 0xff); - - return ret; -} - -static uint32_t get_uint32(const void *buf) { - uint32_t ret; - unsigned char *tmp; - - tmp = (unsigned char *) buf; - - ret = tmp[3] & 0xff; - ret = (ret << 8) + (tmp[2] & 0xff); - ret = (ret << 8) + (tmp[1] & 0xff); - ret = (ret << 8) + (tmp[0] & 0xff); - - return ret; -} - -static uint16_t get_uint16_be(const void *buf) { - uint16_t ret; - unsigned char *tmp; - - tmp = (unsigned char *) buf; - - ret = tmp[0] & 0xff; - ret = (ret << 8) + (tmp[1] & 0xff); - - return ret; -} - -static uint32_t get_uint32_be(const void *buf) { - uint32_t ret; - unsigned char *tmp; - - tmp = (unsigned char *) buf; - - ret = tmp[0] & 0xff; - ret = (ret << 8) + (tmp[1] & 0xff); - ret = (ret << 8) + (tmp[2] & 0xff); - ret = (ret << 8) + (tmp[3] & 0xff); - - return ret; -} - -unsigned char read_char(unsigned char *p, int &pos, int size) { - if ((pos + 1) > size) - throw exception(); - pos++; - return p[pos - 1]; -} - -unsigned short read_word(unsigned char *p, int &pos, int size) { - unsigned short v; - - if ((pos + 2) > size) - throw exception(); - v = p[pos]; - v = (v << 8) | (p[pos + 1] & 0xff); - pos += 2; - return v; -} - -unsigned int read_dword(unsigned char *p, int &pos, int size) { - unsigned int v; - - if ((pos + 4) > size) - throw exception(); - v = p[pos]; - v = (v << 8) | (p[pos + 1] & 0xff); - v = (v << 8) | (p[pos + 2] & 0xff); - v = (v << 8) | (p[pos + 3] & 0xff); - pos += 4; - return v; -} - -static void -finish_text_sub_handling(mkv_demuxer_t *mkv_d, KaxBlock *block, - int64_t duration, int first_line) { - int i; - -#ifdef USE_ICONV - subcp_recode1(&mkv_d->subs); -#endif - - vo_sub = &mkv_d->subs; - vo_osd_changed(OSDTYPE_SUBTITLE); - - for (i = first_line; i <= (mkv_d->subs.lines - 1); i++) - mkv_d->clear_subs_at[i] = block->GlobalTimecode() / 1000000 - - mkv_d->first_tc + duration; -} - -static void handle_subtitles(demuxer_t *d, KaxBlock *block, int64_t duration) { - mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)d->priv; - int len, line, state, i, first_line; - char *s1, *s2, *buffer; - - if (duration == -1) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: No KaxBlockDuration " - "element for subtitle track found.\n"); - return; - } - - DataBuffer &data = block->GetBuffer(0); - len = data.Size(); - - buffer = (char *)data.Buffer(); - s1 = buffer; - - while (((*s1 == '\n') || (*s1 == '\r')) && - ((unsigned int)(s1 - buffer) <= data.Size())) - s1++; - - line = 0; - mkv_d->subs.lines++; - if (mkv_d->subs.lines > SUB_MAX_TEXT) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many sublines to " - "render, skipping\n"); - mkv_d->subs.lines = SUB_MAX_TEXT; - return; - } - first_line = mkv_d->subs.lines - 1; - s2 = mkv_d->subs.text[mkv_d->subs.lines - 1]; - state = 0; - - if (mkv_d->subtitle_type == MKV_SUBTYPE_SSA) { - /* Matroska's SSA format does not have timecodes embedded into - the SAA line. Timescodes are encoded into the blocks timecode - and duration. */ - - /* Find text section. */ - for (i = 0; (i < 8) && (*s1 != 0); s1++) - if (*s1 == ',') - i++; - - if (*s1 == 0) { // Broken line? - mkv_d->subs.lines--; - return; - } - - /* Load text. */ - while ((unsigned int)(s1 - buffer) < data.Size()) { - if (*s1 == '{') - state = 1; - else if ((*s1 == '}') && (state == 1)) - state = 2; - - if (state == 0) { - *s2 = *s1; - s2++; - if ((s2 - mkv_d->subs.text[mkv_d->subs.lines - 1]) >= 255) - break; - } - s1++; - - /* Newline */ - if ((*s1 == '\\') && ((unsigned int)(s1 + 1 - buffer) < data.Size()) && - ((*(s1 + 1) == 'N') || (*(s1 + 1) == 'n'))) { - *s2 = 0; - mkv_d->subs.lines++; - if (mkv_d->subs.lines > SUB_MAX_TEXT) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many sublines to " - "render, skipping\n"); - mkv_d->subs.lines = SUB_MAX_TEXT; - finish_text_sub_handling(mkv_d, block, duration, first_line); - return; - } - s2 = mkv_d->subs.text[mkv_d->subs.lines - 1]; - s1 += 2; - } - - if (state == 2) - state = 0; - } - *s2 = 0; - - } else { - while ((unsigned int)(s1 - buffer) != data.Size()) { - if ((*s1 == '\n') || (*s1 == '\r')) { - if (state == 0) { // normal char --> newline - if (mkv_d->subs.lines == SUB_MAX_TEXT) - break; - *s2 = 0; - mkv_d->clear_subs_at[mkv_d->subs.lines - 1]= - block->GlobalTimecode() / 1000000 - mkv_d->first_tc + duration; - s2 = mkv_d->subs.text[mkv_d->subs.lines]; - mkv_d->subs.lines++; - state = 1; - } - } else if (*s1 == '<') // skip HTML tags - state = 2; - else if (*s1 == '>') - state = 0; - else if (state != 2) { // normal character - state = 0; - if ((s2 - mkv_d->subs.text[mkv_d->subs.lines - 1]) < 255) { - *s2 = *s1; - s2++; - } - } - s1++; - } - - *s2 = 0; - } - - finish_text_sub_handling(mkv_d, block, duration, first_line); -} - -static mkv_track_t *new_mkv_track(mkv_demuxer_t *d) { - mkv_track_t *t; - - t = (mkv_track_t *)safemalloc(sizeof(mkv_track_t)); - memset(t, 0, sizeof(mkv_track_t)); - d->tracks = (mkv_track_t **)realloc(d->tracks, (d->num_tracks + 1) * - sizeof(mkv_track_t *)); - if (d->tracks == NULL) - return NULL; - d->tracks[d->num_tracks] = t; - d->num_tracks++; - - // Set default values. - t->default_track = 1; - t->a_sfreq = 8000.0; - t->a_channels = 1; - t->language = strdup("eng"); - - t->c_encodings = new vector; - - return t; -} - -static mkv_track_t *find_track_by_num(mkv_demuxer_t *d, uint32_t n, - char track_type) { - int i; - - for (i = 0; i < d->num_tracks; i++) - if ((d->tracks[i] != NULL) && (d->tracks[i]->type == track_type) && - (d->tracks[i]->xid == n)) - return d->tracks[i]; - - return NULL; -} - -static mkv_track_t *find_duplicate_track_by_num(mkv_demuxer_t *d, uint32_t n, - mkv_track_t *c) { - int i; - - for (i = 0; i < d->num_tracks; i++) - if ((d->tracks[i] != NULL) && (d->tracks[i]->tnum == n) && - (d->tracks[i] != c)) - return d->tracks[i]; - - return NULL; -} - -static mkv_track_t *find_track_by_language(mkv_demuxer_t *d, char *language, - mkv_track_t *c, char type = 's') { - int i; - - for (i = 0; i < d->num_tracks; i++) - if ((d->tracks[i] != NULL) && (d->tracks[i] != c) && - (d->tracks[i]->language != NULL) && - !strcmp(d->tracks[i]->language, language) && - (d->tracks[i]->type == type)) - return d->tracks[i]; - - return NULL; -} - -static bool mkv_parse_idx(mkv_track_t *t) { - uint32_t i, p, things_found; - int idx; - string line, s1, s2; - char *src; - - if ((t->private_data == NULL) || (t->private_size < 1)) - return false; - - things_found = 0; - i = 0; - src = (char *)t->private_data; - do { - line = ""; - while ((i < t->private_size) && (src[i] != '\n') && (src[i] != '\r')) { - if (!isspace(src[i])) - line += src[i]; - i++; - } - while ((i < t->private_size) && ((src[i] == '\n') || (src[i] == '\r'))) - i++; - - if (!strncasecmp(line.c_str(), "size:", 5)) { - s1 = line.substr(5); - idx = s1.find('x'); - if (idx >= 0) { - s2 = s1.substr(idx + 1); - s1.erase(idx); - t->sh_sub.width = strtol(s1.c_str(), NULL, 10); - t->sh_sub.height = strtol(s2.c_str(), NULL, 10); - things_found |= 1; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] VobSub IDX parser: size: %d x %d\n", - t->sh_sub.width, t->sh_sub.height); - } - - } else if (!strncasecmp(line.c_str(), "palette:", 8)) { - s1 = line.substr(8); - for (p = 0; p < 15; p++) { - idx = s1.find(','); - if (idx < 0) - break; - s2 = s1.substr(0, idx); - s1.erase(0, idx + 1); - t->sh_sub.palette[p] = (unsigned int)strtol(s2.c_str(), NULL, 16); - } - if (idx >= 0) { - t->sh_sub.palette[15] = (unsigned int)strtol(s1.c_str(), NULL, 16); - things_found |= 2; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] VobSub IDX parser: palette: 0x%06x " - "0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x " - "0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x\n", - t->sh_sub.palette[0], t->sh_sub.palette[1], - t->sh_sub.palette[2], t->sh_sub.palette[3], - t->sh_sub.palette[4], t->sh_sub.palette[5], - t->sh_sub.palette[6], t->sh_sub.palette[7], - t->sh_sub.palette[8], t->sh_sub.palette[9], - t->sh_sub.palette[10], t->sh_sub.palette[11], - t->sh_sub.palette[12], t->sh_sub.palette[13], - t->sh_sub.palette[14], t->sh_sub.palette[15]); - } - } - - } while ((i != t->private_size) && (things_found != 3)); - t->sh_sub.type = 'v'; - - return (things_found == 3); -} - -static bool reverse_encodings(mkv_track_t *track, unsigned char *&data, - uint32_t &size, uint32_t type) { - int new_size, n; - unsigned char *new_data, *old_data; - bool modified; - vector::iterator ce; - - if (track->c_encodings->size() == 0) - return false; - - new_data = data; - new_size = size; - modified = false; - for (ce = track->c_encodings->begin(); ce < track->c_encodings->end(); - ce++) { - if ((ce->scope & type) == 0) - continue; - -#ifdef HAVE_ZLIB - if (ce->comp_algo == 0) { - int result; - z_stream zstream; - - old_data = new_data; - - zstream.zalloc = (alloc_func)0; - zstream.zfree = (free_func)0; - zstream.opaque = (voidpf)0; - result = inflateInit(&zstream); - if (result != Z_OK) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Zlib initialization failed. " - "Result: %d\n", result); - safefree(new_data); - data = old_data; - size = new_size; - return modified; - } - zstream.next_in = (Bytef *)old_data; - zstream.avail_in = new_size; - - n = 0; - new_data = NULL; - do { - n++; - new_data = (unsigned char *)realloc(new_data, n * 4000); - zstream.next_out = (Bytef *)&new_data[(n - 1) * 4000]; - zstream.avail_out = 4000; - result = inflate(&zstream, Z_NO_FLUSH); - if ((result != Z_OK) && (result != Z_STREAM_END)) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Zlib decompression failed. " - "Result: %d \n", result); - safefree(new_data); - data = old_data; - size = new_size; - inflateEnd(&zstream); - return modified; - } - } while ((zstream.avail_out == 0) && - (zstream.avail_in != 0) && (result != Z_STREAM_END)); - - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] zlib decompression: from %d to " - "%d \n", (int)new_size, (int)zstream.total_out); - new_size = zstream.total_out; - inflateEnd(&zstream); - - if (modified) - safefree(old_data); - modified = true; - } -#endif - } - - data = new_data; - size = new_size; - - return modified; -} - -static int check_track_information(mkv_demuxer_t *d) { - int i, track_num; - unsigned char *c; - uint32_t u, offset, length; - mkv_track_t *t; - mkv_content_encoding_t *ce; - BITMAPINFOHEADER *bih; - WAVEFORMATEX *wfe; - - for (track_num = 0; track_num < d->num_tracks; track_num++) { - t = d->tracks[track_num]; - - t->ok = 1; - for (i = 0; i < (int)t->c_encodings->size(); i++) { - ce = &(*t->c_encodings)[i]; - - if (ce->type == 1) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Track number %u has been " - "encrypted and decryption has not yet been implemented. " - "Skipping track.\n", t->tnum); - t->ok = 0; - break; - } - - if (ce->type != 0) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown content encoding type %u " - "for track %u. Skipping track.\n", ce->type, t->tnum); - t->ok = 0; - break; - } - - if (ce->comp_algo == 0) { -#if !defined(HAVE_ZLIB) - mp_msg(MSGT_DEMUX, MSGL_WARN, "Track %u was compressed with zlib but " - "mplayer has not been compiled with support for zlib " - "compression. Skipping track.\n", t->tnum); - t->ok = 0; - break; -#endif - } else { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Track %u has been compressed " - "with an unknown/unsupported compression algorithm (%u). " - "Skipping track.\n", t->tnum, ce->comp_algo); - t->ok = 0; - break; - } - } - - if (!t->ok) - continue; - t->ok = 0; - - if (t->private_data != NULL) { - c = (unsigned char *)t->private_data; - length = t->private_size; - if (reverse_encodings(t, c, length, 2)) { - safefree(t->private_data); - t->private_data = c; - t->private_size = length; - } - } - - switch (t->type) { - case 'v': // video track - if (t->codec_id == NULL) - continue; - if (!strcmp(t->codec_id, MKV_V_MSCOMP)) { - if ((t->private_data == NULL) || - (t->private_size < sizeof(BITMAPINFOHEADER))) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: CodecID for track " - "%u is '" MKV_V_MSCOMP "', but there was no " - "BITMAPINFOHEADER struct present. Therefore we don't have " - "a FourCC to identify the video codec used.\n", t->tnum); - continue; - } else { - t->ms_compat = 1; - - bih = (BITMAPINFOHEADER *)t->private_data; - - u = get_uint32(&bih->biWidth); - if (t->v_width != u) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS " - "compatibility mode, track %u) " - "Matrosa says video width is %u, but the " - "BITMAPINFOHEADER says %u.\n", t->tnum, t->v_width, u); - if (t->v_width == 0) - t->v_width = u; - } - - u = get_uint32(&bih->biHeight); - if (t->v_height != u) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS compatibility " - "mode, track %u) " - "Matrosa video height is %u, but the BITMAPINFOHEADER " - "says %u.\n", t->tnum, t->v_height, u); - if (t->v_height == 0) - t->v_height = u; - } - - memcpy(t->v_fourcc, &bih->biCompression, 4); - } - } - - if (t->v_width == 0) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The width for track %u was " - "not set.\n", t->tnum); - continue; - } - if (t->v_height == 0) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The height for track %u was " - "not set.\n", t->tnum); - continue; - } - - if (t->v_dwidth == 0) - t->v_dwidth = t->v_width; - if (t->v_dheight == 0) - t->v_dheight = t->v_height; - - // This track seems to be ok. - t->ok = 1; - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: video (%s), " - "-vid %u\n", t->tnum, t->codec_id, t->xid); - - break; - - case 'a': // audio track - if (t->codec_id == NULL) - continue; - if (!strcmp(t->codec_id, MKV_A_ACM)) { - if ((t->private_data == NULL) || - (t->private_size < sizeof(WAVEFORMATEX))) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: CodecID for track " - "%u is '" MKV_A_ACM "', " - "but there was no WAVEFORMATEX struct present. " - "Therefore we don't have a format ID to identify the audio " - "codec used.\n", t->tnum); - continue; - } else { - t->ms_compat = 1; - - wfe = (WAVEFORMATEX *)t->private_data; - u = get_uint32(&wfe->nSamplesPerSec); - if (((uint32_t)t->a_sfreq) != u) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS compatibility " - "mode for track %u) " - "Matroska says that there are %u samples per second, " - "but WAVEFORMATEX says that there are %u.\n", t->tnum, - (uint32_t)t->a_sfreq, u); - if (t->a_sfreq == 0.0) - t->a_sfreq = (float)u; - } - - u = get_uint16(&wfe->nChannels); - if (t->a_channels != u) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS " - "compatibility mode for track %u) " - "Matroska says that there are %u channels, but the " - "WAVEFORMATEX says that there are %u.\n", t->tnum, - t->a_channels, u); - if (t->a_channels == 0) - t->a_channels = u; - } - - u = get_uint16(&wfe->wBitsPerSample); - if (t->a_bps != u) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS " - "compatibility mode for track %u) " - "Matroska says that there are %u bits per sample, " - "but the WAVEFORMATEX says that there are %u.\n", t->tnum, - t->a_bps, u); - if (t->a_bps == 0) - t->a_bps = u; - } - - t->a_formattag = get_uint16(&wfe->wFormatTag); - } - } else { - if (!strcmp(t->codec_id, MKV_A_MP3) || - !strcmp(t->codec_id, MKV_A_MP2)) - t->a_formattag = 0x0055; - else if (!strncmp(t->codec_id, MKV_A_AC3, strlen(MKV_A_AC3))) - t->a_formattag = 0x2000; - else if (!strcmp(t->codec_id, MKV_A_DTS)) - // uses same format tag as AC3, only supported with -hwac3 - t->a_formattag = 0x2000; - else if (!strcmp(t->codec_id, MKV_A_PCM) || - !strcmp(t->codec_id, MKV_A_PCM_BE)) - t->a_formattag = 0x0001; - else if (!strcmp(t->codec_id, MKV_A_AAC_2MAIN) || - !strncmp(t->codec_id, MKV_A_AAC_2LC, - strlen(MKV_A_AAC_2LC)) || - !strcmp(t->codec_id, MKV_A_AAC_2SSR) || - !strcmp(t->codec_id, MKV_A_AAC_4MAIN) || - !strncmp(t->codec_id, MKV_A_AAC_4LC, - strlen(MKV_A_AAC_4LC)) || - !strcmp(t->codec_id, MKV_A_AAC_4SSR) || - !strcmp(t->codec_id, MKV_A_AAC_4LTP)) - t->a_formattag = mmioFOURCC('M', 'P', '4', 'A'); - else if (!strcmp(t->codec_id, MKV_A_VORBIS)) { - if (t->private_data == NULL) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: CodecID for " - "track %u is '" MKV_A_VORBIS - "', but there are no header packets present.", t->tnum); - continue; - } - - c = (unsigned char *)t->private_data; - if (c[0] != 2) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Vorbis track does not " - "contain valid headers.\n"); - continue; - } - - offset = 1; - for (i = 0; i < 2; i++) { - length = 0; - while ((c[offset] == (unsigned char )255) && - (length < t->private_size)) { - length += 255; - offset++; - } - if (offset >= (t->private_size - 1)) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Vorbis track does not " - "contain valid headers.\n"); - continue; - } - length += c[offset]; - offset++; - t->header_sizes[i] = length; - } - - t->headers[0] = &c[offset]; - t->headers[1] = &c[offset + t->header_sizes[0]]; - t->headers[2] = &c[offset + t->header_sizes[0] + - t->header_sizes[1]]; - t->header_sizes[2] = t->private_size - offset - - t->header_sizes[0] - t->header_sizes[1]; - - t->a_formattag = 0xFFFE; - } else if (!strcmp(t->codec_id, MKV_A_QDMC) || - !strcmp(t->codec_id, MKV_A_QDMC2)) { - ; - } else if (!strcmp(t->codec_id, MKV_A_FLAC)) { - if ((t->private_data == NULL) || (t->private_size == 0)) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] FLAC track does not " - "contain valid headers.\n"); - continue; - } - t->a_formattag = mmioFOURCC('f', 'L', 'a', 'C'); - } else if (t->private_size >= sizeof(real_audio_v4_props_t)) { - if (!strcmp(t->codec_id, MKV_A_REAL28)) - t->a_formattag = mmioFOURCC('2', '8', '_', '8'); - else if (!strcmp(t->codec_id, MKV_A_REALATRC)) - t->a_formattag = mmioFOURCC('a', 't', 'r', 'c'); - else if (!strcmp(t->codec_id, MKV_A_REALCOOK)) - t->a_formattag = mmioFOURCC('c', 'o', 'o', 'k'); - else if (!strcmp(t->codec_id, MKV_A_REALDNET)) - t->a_formattag = mmioFOURCC('d', 'n', 'e', 't'); - else if (!strcmp(t->codec_id, MKV_A_REALSIPR)) - t->a_formattag = mmioFOURCC('s', 'i', 'p', 'r'); - } else { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown/unsupported audio " - "codec ID '%s' for track %u or missing/faulty private " - "codec data.\n", t->codec_id, t->tnum); - continue; - } - } - - if (t->a_sfreq == 0.0) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The sampling frequency was not " - "set for track %u.\n", t->tnum); - continue; - } - - if (t->a_channels == 0) { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The number of channels was not " - "set for track %u.\n", t->tnum); - continue; - } - - // This track seems to be ok. - t->ok = 1; - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: audio (%s), -aid " - "%u%s%s\n", t->tnum, t->codec_id, t->xid, - t->language != NULL ? ", -alang " : "", - t->language != NULL ? t->language : ""); - break; - - case 's': - if (!strcmp(t->codec_id, MKV_S_VOBSUB)) { - if (mkv_parse_idx(t)) { - t->ok = 1; - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: subtitles (%s), " - "-sid %u%s%s\n", t->tnum, t->codec_id, - t->xid, t->language != NULL ? ", -slang " : "", - t->language != NULL ? t->language : ""); - } - - } else { // Text subtitles do not need any data - t->ok = 1; // except the CodecID. - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: subtitles (%s), " - "-sid %u%s%s\n", t->tnum, t->codec_id, t->xid, - t->language != NULL ? ", -slang " : "", - t->language != NULL ? t->language : ""); - } - break; - - default: // unknown track type!? error in demuxer... - mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] Error in demux_mkv.cpp: unknown " - "demuxer type for track %u: '%c'\n", t->tnum, t->type); - continue; - } - - if (t->ok) - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Track %u seems to be ok.\n", t->tnum); - } - - return 1; -} - -static void free_mkv_demuxer(mkv_demuxer_t *d) { - int i, k; - - if (d == NULL) - return; - - for (i = 0; i < d->num_tracks; i++) - if (d->tracks[i] != NULL) { - if (d->tracks[i]->private_data != NULL) - free(d->tracks[i]->private_data); - if (d->tracks[i]->language != NULL) - free(d->tracks[i]->language); - for (k = 0; k < (int)d->tracks[i]->c_encodings->size(); k++) { - safefree((*d->tracks[i]->c_encodings)[k].comp_settings); - safefree((*d->tracks[i]->c_encodings)[k].enc_keyid); - safefree((*d->tracks[i]->c_encodings)[k].sig_keyid); - safefree((*d->tracks[i]->c_encodings)[k].signature); - } - delete d->tracks[i]->c_encodings; - free(d->tracks[i]); - } - - for (i = 0; i < d->num_indexes; i++) - free(d->index[i].entries); - free(d->index); - - for (i = 0; i <= SUB_MAX_TEXT; i++) - safefree(d->subs.text[i]); - - if (d->es != NULL) - delete d->es; - if (d->saved_l1 != NULL) - delete d->saved_l1; - if (d->in != NULL) - delete d->in; - if (d->segment != NULL) - delete d->segment; - if (d->chapters != NULL) - delete d->chapters; - - free(d); -} - -static void add_index_entry(mkv_demuxer_t *d, uint32_t tnum, uint64_t filepos, - uint64_t timecode, int is_key) { - int i, found; - mkv_index_entry_t *entry; - - for (i = 0, found = 0; i < d->num_indexes; i++) - if (d->index[i].tnum == tnum) { - found = 1; - break; - } - - if (!found) { - d->index = (mkv_track_index_t *)realloc(d->index, (d->num_indexes + 1) * - sizeof(mkv_track_index_t)); - if (d->index == NULL) - return; - i = d->num_indexes; - memset(&d->index[i], 0, sizeof(mkv_track_index_t)); - d->index[i].tnum = tnum; - d->num_indexes++; - } - - d->index[i].entries = - (mkv_index_entry_t *)realloc(d->index[i].entries, - (d->index[i].num_entries + 1) * - sizeof(mkv_index_entry_t)); - if (d->index[i].entries == NULL) - return; - entry = &d->index[i].entries[d->index[i].num_entries]; - entry->filepos = filepos; - entry->timecode = timecode; - entry->is_key = is_key; - d->index[i].num_entries++; -} - -static void add_cluster_position(mkv_demuxer_t *mkv_d, int64_t position) { - mkv_d->cluster_positions = (int64_t *)realloc(mkv_d->cluster_positions, - (mkv_d->num_cluster_pos + 1) * - sizeof(int64_t)); - if (mkv_d->cluster_positions != NULL) { - mkv_d->cluster_positions[mkv_d->num_cluster_pos] = position; - mkv_d->num_cluster_pos++; - } else - mkv_d->num_cluster_pos = 0; -} - -static int find_in_vector(vector &vec, uint64_t value) { - unsigned int i; - - for (i = 0; i < vec.size(); i++) - if (vec[i] == value) - return 1; - - return 0; -} - -#define in_parent(p) (mkv_d->in->getFilePointer() < \ - (p->GetElementPosition() + p->ElementSize())) -#define FINDFIRST(p, c) (static_cast \ - (((EbmlMaster *)p)->FindFirstElt(c::ClassInfos, false))) -#define FINDNEXT(p, c, e) (static_cast \ - (((EbmlMaster *)p)->FindNextElt(*e, false))) - -static void parse_cues(mkv_demuxer_t *mkv_d, uint64_t pos) { - EbmlElement *l2 = NULL; - EbmlStream *es; - KaxCues *cues; - KaxCuePoint *cpoint; - KaxCueTime *ctime; - KaxCueClusterPosition *ccpos; - KaxCueTrack *ctrack; - KaxCueTrackPositions *ctrackpos; - int upper_lvl_el, i, k; - uint64_t tc_scale, filepos = 0, timecode = 0; - uint32_t tnum = 0; - mkv_index_entry_t *entry; - - if (find_in_vector(*mkv_d->parsed_cues, pos)) - return; - - mkv_d->parsed_cues->push_back(pos); - - mkv_d->in->setFilePointer(pos); - - es = mkv_d->es; - tc_scale = mkv_d->tc_scale; - upper_lvl_el = 0; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing cues ] -----------\n"); - - cues = (KaxCues *)es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - if (cues == NULL) - return; - - if (!(EbmlId(*cues) == KaxCues::ClassInfos.GlobalId)) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No KaxCues element found but %s.\n" - "[mkv] \\---- [ parsing cues ] -----------\n", - cues->Generic().DebugName); - - return; - } - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ found cues\n"); - - cues->Read(*es, KaxCues::ClassInfos.Context, upper_lvl_el, l2, true); - - cpoint = FINDFIRST(cues, KaxCuePoint); - - while (cpoint != NULL) { - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue point\n"); - - ctime = FINDFIRST(cpoint, KaxCueTime); - if (ctime == NULL) { - cpoint = FINDNEXT(cues, KaxCuePoint, cpoint); - continue; - } - - timecode = uint64(*ctime) * tc_scale / 1000000 - mkv_d->first_tc; - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue time: %.3fs\n", - (float)timecode / 1000.0); - - ctrackpos = FINDFIRST(cpoint, KaxCueTrackPositions); - - while (ctrackpos != NULL) { - ctrack = FINDFIRST(ctrackpos, KaxCueTrack); - - if (ctrack == NULL) { - ctrackpos = FINDNEXT(cpoint, KaxCueTrackPositions, ctrackpos); - continue; - } - - tnum = uint32(*ctrack); - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue track: %u\n", tnum); - - ccpos = FINDFIRST(ctrackpos, KaxCueClusterPosition); - if (ccpos == NULL) { - ctrackpos = FINDNEXT(cpoint, KaxCueTrackPositions, ctrackpos); - continue; - } - - filepos = mkv_d->segment->GetGlobalPosition(uint64_t(*ccpos)); - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue cluster " - "position: %llu\n", filepos); - - add_index_entry(mkv_d, tnum, filepos, timecode, 1); - - ctrackpos = FINDNEXT(cpoint, KaxCueTrackPositions, ctrackpos); - } - - cpoint = FINDNEXT(cues, KaxCuePoint, cpoint); - } - - delete cues; - - // Debug: dump the index - for (i = 0; i < mkv_d->num_indexes; i++) { - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] Index for track %u contains %u " - "entries.\n", mkv_d->index[i].tnum, mkv_d->index[i].num_entries); - for (k = 0; k < mkv_d->index[i].num_entries; k++) { - entry = &mkv_d->index[i].entries[k]; - mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] %d: timecode %llu, filepos %llu, " - "is key: %s\n", k, entry->timecode, entry->filepos, - entry->is_key ? "yes" : "no"); - } - } - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing cues ] -----------\n"); - - mkv_d->cues_found = 1; -} - -static void parse_chapters(mkv_demuxer_t *mkv_d, uint64_t pos) { - EbmlElement *l2 = NULL; - EbmlStream *es; - KaxChapters *kchapters; - KaxEditionEntry *keentry; - KaxChapterAtom *kcatom; - KaxChapterTimeStart *kctstart; - KaxChapterTimeEnd *kctend; - int upper_lvl_el, i, k; - mkv_chapter_t chapter; - - if (mkv_d->chapters != NULL) - return; - - es = mkv_d->es; - upper_lvl_el = 0; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing chapters ] ---------\n"); - - mkv_d->in->setFilePointer(pos); - - kchapters = - (KaxChapters *)es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - if (kchapters == NULL) - return; - - if (!(EbmlId(*kchapters) == KaxChapters::ClassInfos.GlobalId)) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No KaxChapters element found but %s.\n" - "[mkv] \\---- [ parsing chapters ] ---------\n", - kchapters->Generic().DebugName); - - return; - } - - mkv_d->chapters = new vector; - kchapters->Read(*es, KaxChapters::ClassInfos.Context, upper_lvl_el, l2, - true); - - for (i = 0; i < (int)kchapters->ListSize(); i++) { - keentry = (KaxEditionEntry *)(*kchapters)[i]; - if (EbmlId(*keentry) == KaxEditionEntry::ClassInfos.GlobalId) { - for (k = 0; k < (int)keentry->ListSize(); k++) { - kcatom = (KaxChapterAtom *)(*keentry)[k]; - if (EbmlId(*kcatom) == KaxChapterAtom::ClassInfos.GlobalId) { - chapter.start = 0; - chapter.end = 0; - kctstart = FINDFIRST(kcatom, KaxChapterTimeStart); - if (kctstart != NULL) - chapter.start = uint64(*kctstart) / 1000000; - kctend = FINDFIRST(kcatom, KaxChapterTimeEnd); - if (kctend != NULL) - chapter.end = uint64(*kctend) / 1000000; - mkv_d->chapters->push_back(chapter); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Chapter %u from %02d:%02d:%02d." - "%03d to %02d:%02d:%02d.%03d\n", mkv_d->chapters->size(), - (int)(chapter.start / 60 / 60 / 1000), - (int)((chapter.start / 60 / 1000) % 60), - (int)((chapter.start / 1000) % 60), - (int)(chapter.start % 1000), - (int)(chapter.end / 60 / 60 / 1000), - (int)((chapter.end / 60 / 1000) % 60), - (int)((chapter.end / 1000) % 60), - (int)(chapter.end % 1000)); - } - } - } - } - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing chapters ] ---------\n"); - delete kchapters; -} - -static void parse_seekhead(mkv_demuxer_t *mkv_d, uint64_t pos) { - EbmlElement *l2 = NULL; - EbmlStream *es; - KaxSeekHead *kseekhead; - KaxSeek *kseek; - KaxSeekID *ksid; - KaxSeekPosition *kspos; - int upper_lvl_el, i, k, s; - uint64_t seek_pos; - EbmlId *id; - EbmlElement *e; - binary *b; - - if (find_in_vector(*mkv_d->parsed_seekheads, pos)) - return; - - mkv_d->parsed_seekheads->push_back(pos); - - es = mkv_d->es; - upper_lvl_el = 0; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing seek head ] ---------\n"); - - mkv_d->in->setFilePointer(pos); - - kseekhead = - (KaxSeekHead *)es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - if (kseekhead == NULL) - return; - - if (!(EbmlId(*kseekhead) == KaxSeekHead::ClassInfos.GlobalId)) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No KaxSeekead element found but %s.\n" - "[mkv] \\---- [ parsing seek head ] ---------\n", - kseekhead->Generic().DebugName); - - return; - } - - kseekhead->Read(*es, KaxSeekHead::ClassInfos.Context, upper_lvl_el, l2, - true); - - for (i = 0; i < (int)kseekhead->ListSize(); i++) { - kseek = (KaxSeek *)(*kseekhead)[i]; - if (!(EbmlId(*kseek) == KaxSeek::ClassInfos.GlobalId)) - continue; - - seek_pos = 0; - id = NULL; - - for (k = 0; k < (int)kseek->ListSize(); k++) { - e = (*kseek)[k]; - - if (EbmlId(*e) == KaxSeekID::ClassInfos.GlobalId) { - ksid = (KaxSeekID *)e; - - b = ksid->GetBuffer(); - s = ksid->GetSize(); - if (id != NULL) - delete id; - id = new EbmlId(b, s); - - } else if (EbmlId(*e) == KaxSeekPosition::ClassInfos.GlobalId) { - kspos = (KaxSeekPosition *)e; - seek_pos = mkv_d->segment->GetGlobalPosition(uint64(*kspos)); - - } - } - - if ((seek_pos != 0) && (id != NULL)) { - if (*id == KaxSeekHead::ClassInfos.GlobalId) - parse_seekhead(mkv_d, seek_pos); - else if (*id == KaxCues::ClassInfos.GlobalId) - parse_cues(mkv_d, seek_pos); - else if (*id == KaxChapters::ClassInfos.GlobalId) - parse_chapters(mkv_d, seek_pos); - } - - if (id != NULL) - delete id; - } - - delete kseekhead; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing seek head ] ---------\n"); -} - -#define AAC_SYNC_EXTENSION_TYPE 0x02b7 -static int aac_get_sample_rate_index(uint32_t sample_rate) { - if (92017 <= sample_rate) - return 0; - else if (75132 <= sample_rate) - return 1; - else if (55426 <= sample_rate) - return 2; - else if (46009 <= sample_rate) - return 3; - else if (37566 <= sample_rate) - return 4; - else if (27713 <= sample_rate) - return 5; - else if (23004 <= sample_rate) - return 6; - else if (18783 <= sample_rate) - return 7; - else if (13856 <= sample_rate) - return 8; - else if (11502 <= sample_rate) - return 9; - else if (9391 <= sample_rate) - return 10; - else - return 11; -} - -extern "C" void demux_mkv_seek(demuxer_t *demuxer, float rel_seek_secs, - int flags); - -extern "C" int demux_mkv_open(demuxer_t *demuxer) { - unsigned char signature[4]; - stream_t *s; - demux_packet_t *dp; - mkv_demuxer_t *mkv_d; - int upper_lvl_el, exit_loop, i, vid, sid, aid; - // Elements for different levels - EbmlElement *l0 = NULL, *l1 = NULL, *l2 = NULL; - EbmlStream *es; - mkv_track_t *track; - sh_audio_t *sh_a; - sh_video_t *sh_v; - vector seekheads_to_parse; - vector cues_to_parse; - int64_t current_pos; - qt_image_description_t *idesc; - -#ifdef USE_ICONV - subcp_open(); -#endif - - s = demuxer->stream; - stream_seek(s, s->start_pos); - memset(signature, 0, 4); - stream_read(s, (char *)signature, 4); - if ((signature[0] != 0x1A) || (signature[1] != 0x45) || - (signature[2] != 0xDF) || (signature[3] != 0xA3)) - return 0; - stream_seek(s, s->start_pos); - - try { - // structure for storing the demuxer's private data - mkv_d = (mkv_demuxer_t *)safemalloc(sizeof(mkv_demuxer_t)); - memset(mkv_d, 0, sizeof(mkv_demuxer_t)); - mkv_d->duration = -1.0; - - // Create the interface between MPlayer's IO system and - // libmatroska's IO system. - mkv_d->in = new mpstream_io_callback(demuxer->stream); - if (mkv_d->in == NULL) { - free_mkv_demuxer(mkv_d); - return 0; - } - mpstream_io_callback &io = *static_cast(mkv_d->in); - mkv_d->es = new EbmlStream(io); - if (mkv_d->es == NULL) { - free_mkv_demuxer(mkv_d); - return 0; - } - es = mkv_d->es; - - // Find the EbmlHead element. Must be the first one. - l0 = es->FindNextID(EbmlHead::ClassInfos, 0xFFFFFFFFFFFFFFFFULL); - if (l0 == NULL) { - mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] no head found\n"); - free_mkv_demuxer(mkv_d); - return 0; - } - // Don't verify its data for now. - l0->SkipData(static_cast(*es), l0->Generic().Context); - delete l0; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Found the head...\n"); - - // Next element must be a segment - l0 = es->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFFFFFFFFFULL); - if (l0 == NULL) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] but no segment :(\n"); - free_mkv_demuxer(mkv_d); - return 0; - } - if (!(EbmlId(*l0) == KaxSegment::ClassInfos.GlobalId)) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] but no segment :(\n"); - free_mkv_demuxer(mkv_d); - return 0; - } - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] + a segment...\n"); - - mkv_d->segment = (KaxSegment *)l0; - mkv_d->tc_scale = MKVD_TIMECODESCALE; - mkv_d->parsed_seekheads = new vector; - mkv_d->parsed_cues = new vector; - - vid = 0; - aid = 0; - sid = 0; - - upper_lvl_el = 0; - exit_loop = 0; - // We've got our segment, so let's find the tracks - l1 = es->FindNextElement(l0->Generic().Context, upper_lvl_el, 0xFFFFFFFFL, - true, 1); - while ((l1 != NULL) && (upper_lvl_el <= 0)) { - - if (EbmlId(*l1) == KaxInfo::ClassInfos.GlobalId) { - // General info about this Matroska file - KaxTimecodeScale *ktc_scale; - KaxDuration *kduration; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ segment information...\n"); - - l1->Read(*es, KaxInfo::ClassInfos.Context, upper_lvl_el, l2, true); - - ktc_scale = FINDFIRST(l1, KaxTimecodeScale); - if (ktc_scale != NULL) { - mkv_d->tc_scale = uint64(*ktc_scale); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + timecode scale: %llu\n", - mkv_d->tc_scale); - } else - mkv_d->tc_scale = MKVD_TIMECODESCALE; - - kduration = FINDFIRST(l1, KaxDuration); - if (kduration != NULL) { - mkv_d->duration = float(*kduration) * mkv_d->tc_scale / 1000000000.0; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + duration: %.3fs\n", - mkv_d->duration); - } - - l1->SkipData(*es, l1->Generic().Context); - - } else if (EbmlId(*l1) == KaxTracks::ClassInfos.GlobalId) { - // Yep, we've found our KaxTracks element. Now find all tracks - // contained in this segment. - - KaxTrackEntry *ktentry; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ segment tracks...\n"); - - l1->Read(*es, KaxTracks::ClassInfos.Context, upper_lvl_el, l2, true); - - ktentry = FINDFIRST(l1, KaxTrackEntry); - while (ktentry != NULL) { - // We actually found a track entry :) We're happy now. - - KaxTrackNumber *ktnum; - KaxTrackDefaultDuration *kdefdur; - KaxTrackType *kttype; - KaxTrackAudio *ktaudio; - KaxTrackVideo *ktvideo; - KaxCodecID *kcodecid; - KaxCodecPrivate *kcodecpriv; - KaxTrackFlagDefault *ktfdefault; - KaxTrackLanguage *ktlanguage; -#if LIBMATROSKA_VERSION >= 000503 - KaxContentEncodings *kcencodings; - int kcenc_idx; - vector::iterator ce_ins_it; -#endif - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + a track...\n"); - - track = new_mkv_track(mkv_d); - if (track == NULL) - return 0; - - ktnum = FINDFIRST(ktentry, KaxTrackNumber); - if (ktnum != NULL) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Track number: %u\n", - uint32(*ktnum)); - track->tnum = uint32(*ktnum); - if (find_duplicate_track_by_num(mkv_d, track->tnum, track) != NULL) - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] | + WARNING: There's " - "more than one track with the number %u.\n", - track->tnum); - } - - kdefdur = FINDFIRST(ktentry, KaxTrackDefaultDuration); - if (kdefdur != NULL) { - if (uint64(*kdefdur) == 0) - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Default duration: 0"); - else { - track->v_frate = 1000000000.0 / (float)uint64(*kdefdur); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Default duration: " - "%.3fms ( = %.3f fps)\n", - (float)uint64(*kdefdur) / 1000000.0, track->v_frate); - } - track->default_duration = (float)uint64(*kdefdur) / 1000000000.0; - } - - kttype = FINDFIRST(ktentry, KaxTrackType); - if (kttype != NULL) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Track type: "); - - switch (uint8(*kttype)) { - case track_audio: - mp_msg(MSGT_DEMUX, MSGL_V, "Audio\n"); - track->type = 'a'; - track->xid = aid; - aid++; - break; - case track_video: - mp_msg(MSGT_DEMUX, MSGL_V, "Video\n"); - track->type = 'v'; - track->xid = vid; - vid++; - break; - case track_subtitle: - mp_msg(MSGT_DEMUX, MSGL_V, "Subtitle\n"); - track->type = 's'; - track->xid = sid; - sid++; - break; - default: - mp_msg(MSGT_DEMUX, MSGL_V, "unknown\n"); - track->type = '?'; - break; - } - } - - ktaudio = FINDFIRST(ktentry, KaxTrackAudio); - if (ktaudio != NULL) { - KaxAudioSamplingFreq *ka_sfreq; - KaxAudioChannels *ka_channels; - KaxAudioBitDepth *ka_bitdepth; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Audio track\n"); - - ka_sfreq = FINDFIRST(ktaudio, KaxAudioSamplingFreq); - if (ka_sfreq != NULL) { - track->a_sfreq = float(*ka_sfreq); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Sampling " - "frequency: %f\n", track->a_sfreq); - } else - track->a_sfreq = 8000.0; - - ka_channels = FINDFIRST(ktaudio, KaxAudioChannels); - if (ka_channels != NULL) { - track->a_channels = uint8(*ka_channels); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Channels: %u\n", - track->a_channels); - } else - track->a_channels = 1; - - ka_bitdepth = FINDFIRST(ktaudio, KaxAudioBitDepth); - if (ka_bitdepth != NULL) { - track->a_bps = uint8(*ka_bitdepth); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Bit depth: %u\n", - track->a_bps); - } - - } - - ktvideo = FINDFIRST(ktentry, KaxTrackVideo); - if (ktvideo != NULL) { - KaxVideoPixelWidth *kv_pwidth; - KaxVideoPixelHeight *kv_pheight; - KaxVideoDisplayWidth *kv_dwidth; - KaxVideoDisplayHeight *kv_dheight; - KaxVideoFrameRate *kv_frate; - - kv_pwidth = FINDFIRST(ktvideo, KaxVideoPixelWidth); - if (kv_pwidth != NULL) { - track->v_width = uint16(*kv_pwidth); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Pixel width: %u\n", - track->v_width); - } - - kv_pheight = FINDFIRST(ktvideo, KaxVideoPixelHeight); - if (kv_pheight != NULL) { - track->v_height = uint16(*kv_pheight); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Pixel height: %u\n", - track->v_height); - } - - kv_dwidth = FINDFIRST(ktvideo, KaxVideoDisplayWidth); - if (kv_dwidth != NULL) { - track->v_dwidth = uint16(*kv_dwidth); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Display width: %u\n", - track->v_dwidth); - } - - kv_dheight = FINDFIRST(ktvideo, KaxVideoDisplayHeight); - if (kv_dheight != NULL) { - track->v_dheight = uint16(*kv_dheight); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Display height: %u\n", - track->v_dheight); - } - - // For older files. - kv_frate = FINDFIRST(ktvideo, KaxVideoFrameRate); - if (kv_frate != NULL) { - track->v_frate = float(*kv_frate); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Frame rate: %f\n", - track->v_frate); - } - - } - - kcodecid = FINDFIRST(ktentry, KaxCodecID); - if (kcodecid != NULL) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Codec ID: %s\n", - string(*kcodecid).c_str()); - track->codec_id = strdup(string(*kcodecid).c_str()); - } - - kcodecpriv = FINDFIRST(ktentry, KaxCodecPrivate); - if (kcodecpriv != NULL) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + CodecPrivate, length " - "%llu\n", kcodecpriv->GetSize()); - track->private_size = kcodecpriv->GetSize(); - if (track->private_size > 0) - track->private_data = safememdup(kcodecpriv->GetBuffer(), - track->private_size); - } - - ktfdefault = FINDFIRST(ktentry, KaxTrackFlagDefault); - if (ktfdefault != NULL) { - track->default_track = uint32(*ktfdefault); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Default flag: %u\n", - track->default_track); - } - - ktlanguage = FINDFIRST(ktentry, KaxTrackLanguage); - if (ktlanguage != NULL) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Language: %s\n", - string(*ktlanguage).c_str()); - if (track->language != NULL) - free(track->language); - track->language = strdup(string(*ktlanguage).c_str()); - } - -#if LIBMATROSKA_VERSION >= 000503 - kcencodings = FINDFIRST(ktentry, KaxContentEncodings); - if (kcencodings != NULL) { - for (kcenc_idx = 0; kcenc_idx < (int)kcencodings->ListSize(); - kcenc_idx++) { - EbmlElement *l3; - - l3 = (*kcencodings)[kcenc_idx]; - if (EbmlId(*l3) == KaxContentEncoding::ClassInfos.GlobalId) { - KaxContentEncoding *kcenc; - KaxContentEncodingOrder *ce_order; - KaxContentEncodingType *ce_type; - KaxContentEncodingScope *ce_scope; - KaxContentCompression *ce_comp; - KaxContentEncryption *ce_enc; - mkv_content_encoding_t enc; - - memset(&enc, 0, sizeof(mkv_content_encoding_t)); - kcenc = static_cast(l3); - - ce_order = FINDFIRST(kcenc, KaxContentEncodingOrder); - if (ce_order != NULL) - enc.order = uint32(*ce_order); - - ce_type = FINDFIRST(kcenc, KaxContentEncodingType); - if (ce_type != NULL) - enc.type = uint32(*ce_type); - - ce_scope = FINDFIRST(kcenc, KaxContentEncodingScope); - if (ce_scope != NULL) - enc.scope = uint32(*ce_scope); - else - enc.scope = 1; - - ce_comp = FINDFIRST(kcenc, KaxContentCompression); - if (ce_comp != NULL) { - KaxContentCompAlgo *cc_algo; - KaxContentCompSettings *cc_settings; - - cc_algo = FINDFIRST(ce_comp, KaxContentCompAlgo); - if (cc_algo != NULL) - enc.comp_algo = uint32(*cc_algo); - - cc_settings = FINDFIRST(ce_comp, KaxContentCompSettings); - if (cc_settings != NULL) { - enc.comp_settings = - (unsigned char *)safememdup(&binary(*cc_settings), - cc_settings->GetSize()); - enc.comp_settings_len = cc_settings->GetSize(); - } - } - - ce_enc = FINDFIRST(kcenc, KaxContentEncryption); - if (ce_enc != NULL) { - KaxContentEncAlgo *ce_ealgo; - KaxContentEncKeyID *ce_ekeyid; - KaxContentSigAlgo *ce_salgo; - KaxContentSigHashAlgo *ce_shalgo; - KaxContentSigKeyID *ce_skeyid; - KaxContentSignature *ce_signature; - - ce_ealgo = FINDFIRST(ce_enc, KaxContentEncAlgo); - if (ce_ealgo != NULL) - enc.enc_algo = uint32(*ce_ealgo); - - ce_ekeyid = FINDFIRST(ce_enc, KaxContentEncKeyID); - if (ce_ekeyid != NULL) { - enc.enc_keyid = - (unsigned char *)safememdup(&binary(*ce_ekeyid), - ce_ekeyid->GetSize()); - enc.enc_keyid_len = ce_ekeyid->GetSize(); - } - - ce_salgo = FINDFIRST(ce_enc, KaxContentSigAlgo); - if (ce_salgo != NULL) - enc.enc_algo = uint32(*ce_salgo); - - ce_shalgo = FINDFIRST(ce_enc, KaxContentSigHashAlgo); - if (ce_shalgo != NULL) - enc.enc_algo = uint32(*ce_shalgo); - - ce_skeyid = FINDFIRST(ce_enc, KaxContentSigKeyID); - if (ce_skeyid != NULL) { - enc.sig_keyid = - (unsigned char *)safememdup(&binary(*ce_skeyid), - ce_skeyid->GetSize()); - enc.sig_keyid_len = ce_skeyid->GetSize(); - } - - ce_signature = FINDFIRST(ce_enc, KaxContentSignature); - if (ce_signature != NULL) { - enc.signature = - (unsigned char *)safememdup(&binary(*ce_signature), - ce_signature->GetSize()); - enc.signature_len = ce_signature->GetSize(); - } - - } - - ce_ins_it = track->c_encodings->begin(); - while ((ce_ins_it != track->c_encodings->end()) && - (enc.order <= (*ce_ins_it).order)) - ce_ins_it++; - track->c_encodings->insert(ce_ins_it, enc); - } - } - } - -#endif - ktentry = FINDNEXT(l1, KaxTrackEntry, ktentry); - } // while (ktentry != NULL) - - l1->SkipData(*es, l1->Generic().Context); - - } else if (EbmlId(*l1) == KaxSeekHead::ClassInfos.GlobalId) { - if (!find_in_vector(seekheads_to_parse, l1->GetElementPosition())) - seekheads_to_parse.push_back(l1->GetElementPosition()); - l1->SkipData(*es, l1->Generic().Context); - - } else if ((EbmlId(*l1) == KaxCues::ClassInfos.GlobalId) && - !mkv_d->cues_found) { - if (!find_in_vector(cues_to_parse, l1->GetElementPosition())) - cues_to_parse.push_back(l1->GetElementPosition()); - l1->SkipData(*es, l1->Generic().Context); - - } else if (EbmlId(*l1) == KaxChapters::ClassInfos.GlobalId) { - parse_chapters(mkv_d, l1->GetElementPosition()); - l1->SkipData(*es, l1->Generic().Context); - - } else if (EbmlId(*l1) == KaxCluster::ClassInfos.GlobalId) { - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ found cluster, headers are " - "parsed completely :)\n"); - add_cluster_position(mkv_d, l1->GetElementPosition()); - mkv_d->saved_l1 = l1; - exit_loop = 1; - - } else - l1->SkipData(*es, l1->Generic().Context); - - if (!in_parent(l0)) { - delete l1; - break; - } - - if (upper_lvl_el > 0) { - upper_lvl_el--; - if (upper_lvl_el > 0) - break; - delete l1; - l1 = l2; - continue; - - } else if (upper_lvl_el < 0) { - upper_lvl_el++; - if (upper_lvl_el < 0) - break; - - } - - if (exit_loop) // we've found the first cluster, so get out - break; - - l1->SkipData(*es, l1->Generic().Context); - delete l1; - l1 = es->FindNextElement(l0->Generic().Context, upper_lvl_el, - 0xFFFFFFFFL, true); - - } // while (l1 != NULL) - - if (!exit_loop) { - free_mkv_demuxer(mkv_d); - return 0; - } - - current_pos = io.getFilePointer(); - - // Try to find the very first timecode (cluster timecode). - l2 = es->FindNextElement(l1->Generic().Context, upper_lvl_el, - 0xFFFFFFFFL, true, 1); - if ((l2 != NULL) && !upper_lvl_el && - (EbmlId(*l2) == KaxClusterTimecode::ClassInfos.GlobalId)) { - KaxClusterTimecode &ctc = *static_cast(l2); - ctc.ReadData(es->I_O()); - mkv_d->first_tc = uint64(ctc) * mkv_d->tc_scale / 1000000; - delete l2; - } else - mkv_d->first_tc = 0; - - // Parse all cues and seek heads - for (i = 0; i < (int)cues_to_parse.size(); i++) - parse_cues(mkv_d, cues_to_parse[i]); - for (i = 0; i < (int)seekheads_to_parse.size(); i++) - parse_seekhead(mkv_d, seekheads_to_parse[i]); - - io.setFilePointer(current_pos); - - } catch (exception &ex) { - mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] caught exception\n"); - return 0; - } - - if (!check_track_information(mkv_d)) { - free_mkv_demuxer(mkv_d); - return 0; - } - - track = NULL; - if (demuxer->video->id == -1) { // Automatically select a video track. - // Search for a video track that has the 'default' flag set. - for (i = 0; i < mkv_d->num_tracks; i++) - if ((mkv_d->tracks[i]->type == 'v') && mkv_d->tracks[i]->ok && - mkv_d->tracks[i]->default_track) { - track = mkv_d->tracks[i]; - break; - } - - if (track == NULL) - // No track has the 'default' flag set - let's take the first video - // track. - for (i = 0; i < mkv_d->num_tracks; i++) - if ((mkv_d->tracks[i]->type == 'v') && mkv_d->tracks[i]->ok) { - track = mkv_d->tracks[i]; - break; - } - } else if (demuxer->video->id != -2) // -2 = no video at all - track = find_track_by_num(mkv_d, demuxer->video->id, 'v'); - - if (track) { - BITMAPINFOHEADER *bih; - - idesc = NULL; - - if (track->ms_compat) { // MS compatibility mode - BITMAPINFOHEADER *src; - src = (BITMAPINFOHEADER *)track->private_data; - bih = (BITMAPINFOHEADER *)safemalloc(track->private_size); - memset(bih, 0, track->private_size); - bih->biSize = get_uint32(&src->biSize); - bih->biWidth = get_uint32(&src->biWidth); - bih->biHeight = get_uint32(&src->biHeight); - bih->biPlanes = get_uint16(&src->biPlanes); - bih->biBitCount = get_uint16(&src->biBitCount); - bih->biCompression = get_uint32(&src->biCompression); - bih->biSizeImage = get_uint32(&src->biSizeImage); - bih->biXPelsPerMeter = get_uint32(&src->biXPelsPerMeter); - bih->biYPelsPerMeter = get_uint32(&src->biYPelsPerMeter); - bih->biClrUsed = get_uint32(&src->biClrUsed); - bih->biClrImportant = get_uint32(&src->biClrImportant); - memcpy((char *)bih + sizeof(BITMAPINFOHEADER), - (char *)src + sizeof(BITMAPINFOHEADER), - track->private_size - sizeof(BITMAPINFOHEADER)); - - } else { - bih = (BITMAPINFOHEADER *)safemalloc(sizeof(BITMAPINFOHEADER)); - memset(bih, 0, sizeof(BITMAPINFOHEADER)); - bih->biSize = sizeof(BITMAPINFOHEADER); - bih->biWidth = track->v_width; - bih->biHeight = track->v_height; - bih->biBitCount = 24; - bih->biSizeImage = bih->biWidth * bih->biHeight * bih->biBitCount / 8; - - if ((track->private_size >= sizeof(real_video_props_t)) && - (!strcmp(track->codec_id, MKV_V_REALV10) || - !strcmp(track->codec_id, MKV_V_REALV20) || - !strcmp(track->codec_id, MKV_V_REALV30) || - !strcmp(track->codec_id, MKV_V_REALV40))) { - unsigned char *dst, *src; - real_video_props_t *rvp; - uint32_t type2; - - rvp = (real_video_props_t *)track->private_data; - src = (unsigned char *)(rvp + 1); - - bih = (BITMAPINFOHEADER *)realloc(bih, sizeof(BITMAPINFOHEADER) + 12); - bih->biSize = 48; - bih->biPlanes = 1; - type2 = get_uint32_be(&rvp->type2); - if ((type2 == 0x10003000) || (type2 == 0x10003001)) - bih->biCompression = mmioFOURCC('R', 'V', '1', '3'); - else - bih->biCompression = mmioFOURCC('R', 'V', track->codec_id[9], '0'); - dst = (unsigned char *)(bih + 1); - ((unsigned int *)dst)[0] = get_uint32_be(&rvp->type1); - ((unsigned int *)dst)[1] = type2; - - if ((bih->biCompression <= 0x30335652) && - (type2 >= 0x20200002)) { - // read secondary WxH for the cmsg24[] (see vd_realvid.c) - ((unsigned short *)(bih + 1))[4] = 4 * (unsigned short)src[0]; - ((unsigned short *)(bih + 1))[5] = 4 * (unsigned short)src[1]; - } else - memset(&dst[8], 0, 4); - track->realmedia = true; - -#if defined(USE_QTX_CODECS) - } else if ((track->private_size >= sizeof(qt_image_description_t)) && - (!strcmp(track->codec_id, MKV_V_QUICKTIME))) { - idesc = (qt_image_description_t *)track->private_data; - idesc->id_size = get_uint32_be(&idesc->id_size); - idesc->codec_type = get_uint32(&idesc->codec_type); - idesc->version = get_uint16_be(&idesc->version); - idesc->revision = get_uint16_be(&idesc->revision); - idesc->vendor = get_uint32_be(&idesc->vendor); - idesc->temporal_quality = get_uint32_be(&idesc->temporal_quality); - idesc->spatial_quality = get_uint32_be(&idesc->spatial_quality); - idesc->width = get_uint16_be(&idesc->width); - idesc->height = get_uint16_be(&idesc->height); - idesc->horizontal_resolution = - get_uint32_be(&idesc->horizontal_resolution); - idesc->vertical_resolution = - get_uint32_be(&idesc->vertical_resolution); - idesc->data_size = get_uint32_be(&idesc->data_size); - idesc->frame_count = get_uint16_be(&idesc->frame_count); - idesc->depth = get_uint16_be(&idesc->depth); - idesc->color_table_id = get_uint16_be(&idesc->color_table_id); - bih->biPlanes = 1; - bih->biCompression = idesc->codec_type; -#endif // defined(USE_QTX_CODECS) - - } else { - mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown/unsupported CodecID " - "(%s) or missing/bad CodecPrivate data (track %u).\n", - track->codec_id, track->tnum); - demuxer->video->id = -2; - } - } - - if (demuxer->video->id != -2) { - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will play video track %u\n", - track->tnum); - - sh_v = new_sh_video(demuxer, track->tnum); - sh_v->bih = bih; - sh_v->format = sh_v->bih->biCompression; - if (track->v_frate == 0.0) - track->v_frate = 25.0; - sh_v->fps = track->v_frate; - sh_v->frametime = 1 / track->v_frate; - if (!track->realmedia) { - sh_v->disp_w = track->v_width; - sh_v->disp_h = track->v_height; - sh_v->aspect = (float)track->v_dwidth / (float)track->v_dheight; - } else { - // vd_realvid.c will set aspect to disp_w/disp_h and rederive - // disp_w and disp_h from the RealVideo stream contents returned - // by the Real DLLs. If DisplayWidth/DisplayHeight was not set in - // the Matroska file then it has already been set to PixelWidth/Height - // by check_track_information. - sh_v->disp_w = track->v_dwidth; - sh_v->disp_h = track->v_dheight; - } - if (idesc != NULL) - sh_v->ImageDesc = idesc; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Aspect: %f\n", sh_v->aspect); - - demuxer->video->id = track->tnum; - demuxer->video->sh = sh_v; - sh_v->ds = demuxer->video; - - mkv_d->video = track; - } else - free(bih); - - } else { - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] No video track found/wanted.\n"); - demuxer->video->id = -2; - } - - track = NULL; - if (demuxer->audio->id == -1) { // Automatically select an audio track. - // check if the user specified an audio language - if (audio_lang != NULL) { - track = find_track_by_language(mkv_d, audio_lang, NULL, 'a'); - } - if (track == NULL) - // no audio language specified, or language not found - // Search for an audio track that has the 'default' flag set. - for (i = 0; i < mkv_d->num_tracks; i++) - if ((mkv_d->tracks[i]->type == 'a') && mkv_d->tracks[i]->ok && - mkv_d->tracks[i]->default_track) { - track = mkv_d->tracks[i]; - break; - } - - if (track == NULL) - // No track has the 'default' flag set - let's take the first audio - // track. - for (i = 0; i < mkv_d->num_tracks; i++) - if ((mkv_d->tracks[i]->type == 'a') && mkv_d->tracks[i]->ok) { - track = mkv_d->tracks[i]; - break; - } - } else if (demuxer->audio->id != -2) // -2 = no audio at all - track = find_track_by_num(mkv_d, demuxer->audio->id, 'a'); - - if (track) { - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will play audio track %u\n", - track->tnum); - sh_a = new_sh_audio(demuxer, track->tnum); - - demuxer->audio->id = track->tnum; - demuxer->audio->sh = sh_a; - sh_a->ds = demuxer->audio; - - mkv_d->audio = track; - - if (track->ms_compat) - sh_a->wf = (WAVEFORMATEX *)safememdup(track->private_data, - track->private_size); - else { - sh_a->wf = (WAVEFORMATEX *)safemalloc(sizeof(WAVEFORMATEX)); - memset(sh_a->wf, 0, sizeof(WAVEFORMATEX)); - } - sh_a->format = track->a_formattag; - sh_a->wf->wFormatTag = track->a_formattag; - sh_a->channels = track->a_channels; - sh_a->wf->nChannels = track->a_channels; - sh_a->samplerate = (uint32_t)track->a_sfreq; - sh_a->wf->nSamplesPerSec = (uint32_t)track->a_sfreq; - sh_a->samplesize = track->a_bps / 8; - if (!strcmp(track->codec_id, MKV_A_MP3) || - !strcmp(track->codec_id, MKV_A_MP2)) { - sh_a->wf->nAvgBytesPerSec = 16000; - sh_a->wf->nBlockAlign = 1152; - sh_a->wf->wBitsPerSample = 0; - sh_a->samplesize = 0; - - } else if (!strncmp(track->codec_id, MKV_A_AC3, strlen(MKV_A_AC3))) { - sh_a->wf->nAvgBytesPerSec = 16000; - sh_a->wf->nBlockAlign = 1536; - sh_a->wf->wBitsPerSample = 0; - sh_a->samplesize = 0; - - } else if (!strcmp(track->codec_id, MKV_A_PCM) || - !strcmp(track->codec_id, MKV_A_PCM_BE)) { - sh_a->wf->nAvgBytesPerSec = sh_a->channels * sh_a->samplerate * 2; - sh_a->wf->nBlockAlign = sh_a->wf->nAvgBytesPerSec; - sh_a->wf->wBitsPerSample = track->a_bps; - if (!strcmp(track->codec_id, MKV_A_PCM_BE)) - sh_a->format = mmioFOURCC('t', 'w', 'o', 's'); - - } else if (!strcmp(track->codec_id, MKV_A_QDMC) || - !strcmp(track->codec_id, MKV_A_QDMC2)) { - sh_a->wf->wBitsPerSample = track->a_bps; - sh_a->wf->nAvgBytesPerSec = 16000; - sh_a->wf->nBlockAlign = 1486; - track->fix_i_bps = true; - track->qt_last_a_pts = 0.0; - if (track->private_data != NULL) { - sh_a->codecdata = (unsigned char *)safememdup(track->private_data, - track->private_size); - sh_a->codecdata_len = track->private_size; - } - if (!strcmp(track->codec_id, MKV_A_QDMC)) - sh_a->format = mmioFOURCC('Q', 'D', 'M', 'C'); - else - sh_a->format = mmioFOURCC('Q', 'D', 'M', '2'); - - } else if (track->a_formattag == mmioFOURCC('M', 'P', '4', 'A')) { - int profile, srate_idx; - - sh_a->wf->nAvgBytesPerSec = 16000; - sh_a->wf->nBlockAlign = 1024; - sh_a->wf->wBitsPerSample = 0; - sh_a->samplesize = 0; - - // Recreate the 'private data' which faad2 uses in its initialization. - srate_idx = aac_get_sample_rate_index(sh_a->samplerate); - if (!strncmp(&track->codec_id[12], "MAIN", 4)) - profile = 0; - else if (!strncmp(&track->codec_id[12], "LC", 2)) - profile = 1; - else if (!strncmp(&track->codec_id[12], "SSR", 3)) - profile = 2; - else - profile = 3; - sh_a->codecdata = (unsigned char *)safemalloc(5); - sh_a->codecdata[0] = ((profile + 1) << 3) | ((srate_idx & 0xe) >> 1); - sh_a->codecdata[1] = ((srate_idx & 0x1) << 7) | - (track->a_channels << 3); - - if (strstr(track->codec_id, "SBR") != NULL) { - // HE-AAC (aka SBR AAC) - sh_a->codecdata_len = 5; - - sh_a->samplerate *= 2; - sh_a->wf->nSamplesPerSec *= 2; - srate_idx = aac_get_sample_rate_index(sh_a->samplerate); - sh_a->codecdata[2] = AAC_SYNC_EXTENSION_TYPE >> 3; - sh_a->codecdata[3] = ((AAC_SYNC_EXTENSION_TYPE & 0x07) << 5) | 5; - sh_a->codecdata[4] = (1 << 7) | (srate_idx << 3); - track->default_duration = 1024.0 / (float)(sh_a->samplerate / 2); - - } else { - sh_a->codecdata_len = 2; - track->default_duration = 1024.0 / (float)sh_a->samplerate; - } - - } else if (!strcmp(track->codec_id, MKV_A_VORBIS)) { - for (i = 0; i < 3; i++) { - dp = new_demux_packet(track->header_sizes[i]); - memcpy(dp->buffer, track->headers[i], track->header_sizes[i]); - dp->pts = 0; - dp->flags = 0; - ds_add_packet(demuxer->audio, dp); - } - - } else if ((track->private_size >= sizeof(real_audio_v4_props_t)) && - !strncmp(track->codec_id, MKV_A_REALATRC, 7)) { - // Common initialization for all RealAudio codecs - real_audio_v4_props_t *ra4p; - real_audio_v5_props_t *ra5p; - unsigned char *src; - int codecdata_length, version; - - ra4p = (real_audio_v4_props_t *)track->private_data; - ra5p = (real_audio_v5_props_t *)track->private_data; - - sh_a->wf->wBitsPerSample = sh_a->samplesize * 8; - sh_a->wf->nAvgBytesPerSec = 0; // FIXME !? - sh_a->wf->nBlockAlign = get_uint16_be(&ra4p->frame_size); - - version = get_uint16_be(&ra4p->version1); - - if (version == 4) { - src = (unsigned char *)(ra4p + 1); - src += src[0] + 1; - src += src[0] + 1; - } else - src = (unsigned char *)(ra5p + 1); - - src += 3; - if (version == 5) - src++; - codecdata_length = get_uint32_be(src); - src += 4; - sh_a->wf->cbSize = 10 + codecdata_length; - sh_a->wf = (WAVEFORMATEX *)realloc(sh_a->wf, sizeof(WAVEFORMATEX) + - sh_a->wf->cbSize); - ((short *)(sh_a->wf + 1))[0] = get_uint16_be(&ra4p->sub_packet_size); - ((short *)(sh_a->wf + 1))[1] = get_uint16_be(&ra4p->sub_packet_h); - ((short *)(sh_a->wf + 1))[2] = get_uint16_be(&ra4p->flavor); - ((short *)(sh_a->wf + 1))[3] = get_uint32_be(&ra4p->coded_frame_size); - ((short *)(sh_a->wf + 1))[4] = codecdata_length; - memcpy(((char *)(sh_a->wf + 1)) + 10, src, codecdata_length); - - track->realmedia = true; - - } else if (!strcmp(track->codec_id, MKV_A_FLAC) || - (track->a_formattag == 0xf1ac)) { - unsigned char *ptr; - int size; - free(sh_a->wf); - sh_a->wf = NULL; - - if (track->a_formattag == mmioFOURCC('f', 'L', 'a', 'C')) { - ptr = (unsigned char *)track->private_data; - size = track->private_size; - } else { - sh_a->format = mmioFOURCC('f', 'L', 'a', 'C'); - ptr = (unsigned char *)track->private_data + sizeof(WAVEFORMATEX); - size = track->private_size - sizeof(WAVEFORMATEX); - } - if ((size < 4) || (ptr[0] != 'f') || (ptr[1] != 'L') || - (ptr[2] != 'a') || (ptr[3] != 'C')) { - dp = new_demux_packet(4); - memcpy(dp->buffer, "fLaC", 4); - dp->pts = 0; - dp->flags = 0; - ds_add_packet(demuxer->audio, dp); - } - dp = new_demux_packet(size); - memcpy(dp->buffer, ptr, size); - dp->pts = 0; - dp->flags = 0; - ds_add_packet(demuxer->audio, dp); - } - - } else { - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] No audio track found/wanted.\n"); - demuxer->audio->id = -2; - } - - // DO NOT automatically select a subtitle track and behave like DVD - // playback: only show subtitles if the user explicitely wants them. - track = NULL; - if (demuxer->sub->id >= 0) - track = find_track_by_num(mkv_d, demuxer->sub->id, 's'); - else if (dvdsub_lang != NULL) - track = find_track_by_language(mkv_d, dvdsub_lang, NULL); - if (track) { - if (!strcmp(track->codec_id, MKV_S_VOBSUB)) { - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will display subtitle track %u\n", - track->tnum); - mkv_d->subs_track = track; - mkv_d->subtitle_type = MKV_SUBTYPE_VOBSUB; - demuxer->sub->sh = (mkv_sh_sub_t *)safememdup(&track->sh_sub, - sizeof(mkv_sh_sub_t)); - demuxer->sub->id = track->xid; - - } else if (strcmp(track->codec_id, MKV_S_TEXTASCII) && - strcmp(track->codec_id, MKV_S_TEXTUTF8) && - strcmp(track->codec_id, MKV_S_TEXTSSA) && - strcmp(track->codec_id, "S_SSA") && - strcmp(track->codec_id, "S_ASS") && - strcmp(track->codec_id, "S_TEXT/ASS")) - mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] Subtitle type '%s' is not " - "supported. Track will not be displayed.\n", track->codec_id); - else { - mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will display subtitle track %u\n", - track->tnum); - mkv_d->subs_track = track; - if (!mkv_d->subs.text[0]) { - for (i = 0; i <= SUB_MAX_TEXT; i++) - mkv_d->subs.text[i] = (char *)safemalloc(256); - - if (!strcmp(track->codec_id, MKV_S_TEXTUTF8)) - sub_utf8 = 1; // Force UTF-8 conversion. - if (!strcmp(track->codec_id, MKV_S_TEXTSSA) || - !strcmp(track->codec_id, "S_SSA") || - !strcmp(track->codec_id, "S_ASS") || - !strcmp(track->codec_id, "S_TEXT/ASS")) { - mkv_d->subtitle_type = MKV_SUBTYPE_SSA; - sub_utf8 = 1; - } else - mkv_d->subtitle_type = MKV_SUBTYPE_TEXT; - } else - mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] File does not contain a " - "subtitle track with the id %u.\n", demuxer->sub->id); - demuxer->sub->sh = NULL; - } - } - - demuxer->priv = mkv_d; - - if (mkv_d->chapters != NULL) { - for (i = 0; i < (int)mkv_d->chapters->size(); i++) { - (*mkv_d->chapters)[i].start -= mkv_d->first_tc; - (*mkv_d->chapters)[i].end -= mkv_d->first_tc; - } - if ((dvd_last_chapter > 0) && - (dvd_last_chapter <= (int)mkv_d->chapters->size())) { - if ((*mkv_d->chapters)[dvd_last_chapter - 1].end != 0) - mkv_d->stop_timecode = (*mkv_d->chapters)[dvd_last_chapter - 1].end; - else if ((dvd_last_chapter + 1) <= (int)mkv_d->chapters->size()) - mkv_d->stop_timecode = (*mkv_d->chapters)[dvd_last_chapter].start; - } - } - - if (s->end_pos == 0) - demuxer->seekable = 0; - else { - demuxer->movi_start = s->start_pos; - demuxer->movi_end = s->end_pos; - demuxer->seekable = 1; - if ((dvd_chapter != 1) && (mkv_d->chapters != NULL) && - (dvd_chapter <= (int)mkv_d->chapters->size())) - demux_mkv_seek(demuxer, (float)(*mkv_d->chapters)[dvd_chapter - 1].start - / 1000.0, 1); - } - - return 1; -} - -// Taken from demux_real.c. Thanks to the original developpers :) -#define SKIP_BITS(n) buffer <<= n -#define SHOW_BITS(n) ((buffer) >> (32 - (n))) - -static float real_fix_timestamp(mkv_track_t *track, unsigned char *s, - int timestamp) { - float v_pts; - uint32_t buffer = (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]; - int kf = timestamp; - int pict_type; - int orig_kf; - - if (!strcmp(track->codec_id, MKV_V_REALV30) || - !strcmp(track->codec_id, MKV_V_REALV40)) { - - if (!strcmp(track->codec_id, MKV_V_REALV30)) { - SKIP_BITS(3); - pict_type = SHOW_BITS(2); - SKIP_BITS(2 + 7); - }else{ - SKIP_BITS(1); - pict_type = SHOW_BITS(2); - SKIP_BITS(2 + 7 + 3); - } - kf = SHOW_BITS(13); // kf= 2*SHOW_BITS(12); - orig_kf = kf; - if (pict_type <= 1) { - // I frame, sync timestamps: - track->rv_kf_base = timestamp - kf; - mp_msg(MSGT_DEMUX, MSGL_V, "\nTS: base=%08X\n", track->rv_kf_base); - kf = timestamp; - } else { - // P/B frame, merge timestamps: - int tmp = timestamp - track->rv_kf_base; - kf |= tmp & (~0x1fff); // combine with packet timestamp - if (kf < (tmp - 4096)) // workaround wrap-around problems - kf += 8192; - else if (kf > (tmp + 4096)) - kf -= 8192; - kf += track->rv_kf_base; - } - if (pict_type != 3) { // P || I frame -> swap timestamps - int tmp = kf; - kf = track->rv_kf_pts; - track->rv_kf_pts = tmp; - } - mp_msg(MSGT_DEMUX, MSGL_V, "\nTS: %08X -> %08X (%04X) %d %02X %02X %02X " - "%02X %5d\n", timestamp, kf, orig_kf, pict_type, s[0], s[1], s[2], - s[3], kf - (int)(1000.0 * track->rv_pts)); - } - v_pts = kf * 0.001f; - track->rv_pts = v_pts; - - return v_pts; -} - -static void handle_realvideo(demuxer_t *demuxer, unsigned char *data, - uint32_t size, bool keyframe, int &found_data) { - dp_hdr_t *hdr; - int chunks, isize; - mkv_demuxer_t *mkv_d; - demux_stream_t *ds; - demux_packet_t *dp; - - mkv_d = (mkv_demuxer_t *)demuxer->priv; - ds = demuxer->video; - chunks = data[0]; - isize = size - 1 - (chunks + 1) * 8; - dp = new_demux_packet(sizeof(dp_hdr_t) + isize + 8 * (chunks + 1)); - memcpy(&dp->buffer[sizeof(dp_hdr_t)], &data[1 + (chunks + 1) * 8], isize); - memcpy(&dp->buffer[sizeof(dp_hdr_t) + isize], &data[1], (chunks + 1) * 8); - hdr = (dp_hdr_t *)dp->buffer; - hdr->len = isize; - hdr->chunks = chunks; - hdr->timestamp = (int)(mkv_d->last_pts * 1000); - hdr->chunktab = sizeof(dp_hdr_t) + isize; - - dp->len = sizeof(dp_hdr_t) + isize + 8 * (chunks + 1); - if (mkv_d->v_skip_to_keyframe) { - dp->pts = mkv_d->last_pts; - mkv_d->video->rv_kf_base = 0; - mkv_d->video->rv_kf_pts = hdr->timestamp; - } else - dp->pts = real_fix_timestamp(mkv_d->video, &dp->buffer[sizeof(dp_hdr_t)], - hdr->timestamp); - dp->pos = demuxer->filepos; - dp->flags = keyframe ? 0x10 : 0; - - ds_add_packet(ds, dp); - - found_data++; -} - -static void handle_realaudio(demuxer_t *demuxer, unsigned char *data, - uint32_t size, bool keyframe, int &found_data) { - mkv_demuxer_t *mkv_d; - demux_packet_t *dp; - - mkv_d = (mkv_demuxer_t *)demuxer->priv; - - dp = new_demux_packet(size); - memcpy(dp->buffer, data, size); - if ((mkv_d->audio->ra_pts == mkv_d->last_pts) && - !mkv_d->a_skip_to_keyframe) - dp->pts = 0; - else - dp->pts = mkv_d->last_pts; - mkv_d->audio->ra_pts = mkv_d->last_pts; - - dp->pos = demuxer->filepos; - dp->flags = keyframe ? 0x10 : 0; - - ds_add_packet(demuxer->audio, dp); - - found_data++; -} - -extern "C" int demux_mkv_fill_buffer(demuxer_t *d) { - demux_packet_t *dp; - demux_stream_t *ds; - mkv_demuxer_t *mkv_d; - mkv_track_t *t = NULL; - int upper_lvl_el, exit_loop, found_data, i, linei, sl; - char *texttmp; - // Elements for different levels - EbmlElement *l0 = NULL, *l1 = NULL, *l2 = NULL, *l3 = NULL; - EbmlStream *es; - KaxBlock *block; - int64_t block_duration, block_bref, block_fref; - bool use_this_block, lines_cut; - float current_pts; - - mkv_d = (mkv_demuxer_t *)d->priv; - es = mkv_d->es; - l0 = mkv_d->segment; - - // End of stream - if (mkv_d->saved_l1 == NULL) - return 0; - - exit_loop = 0; - upper_lvl_el = 0; - l1 = mkv_d->saved_l1; - mkv_d->saved_l1 = NULL; - found_data = 0; - try { - // The idea is not to handle a complete KaxCluster with each call to - // demux_mkv_fill_buffer because those might be rather big. - while ((l1 != NULL) && (upper_lvl_el <= 0)) { - - if (EbmlId(*l1) == KaxCluster::ClassInfos.GlobalId) { - mkv_d->cluster = (KaxCluster *)l1; - if (found_data) { - mkv_d->saved_l1 = l1; - break; - } - - if (mkv_d->saved_l2 != NULL) { - l2 = mkv_d->saved_l2; - mkv_d->saved_l2 = NULL; - } else - l2 = es->FindNextElement(l1->Generic().Context, upper_lvl_el, - 0xFFFFFFFFL, true, 1); - while ((l2 != NULL) && (upper_lvl_el <= 0)) { - - // Handle at least one data packets in one call to - // demux_mkv_fill_buffer - but abort if we have found that. - if (found_data >= 1) { - mkv_d->saved_l2 = l2; - mkv_d->saved_l1 = l1; - exit_loop = 1; - break; - } - - if (EbmlId(*l2) == KaxClusterTimecode::ClassInfos.GlobalId) { - KaxClusterTimecode &ctc = *static_cast(l2); - ctc.ReadData(es->I_O()); - mkv_d->cluster_tc = uint64(ctc); -#if LIBEBML_VERSION >= 000404 - mkv_d->cluster->InitTimecode(mkv_d->cluster_tc, mkv_d->tc_scale); -#else - mkv_d->cluster->InitTimecode(mkv_d->cluster_tc); -#endif // LIBEBML_VERSION - - } else if (EbmlId(*l2) == KaxBlockGroup::ClassInfos.GlobalId) { - - KaxBlockDuration *kbdur; - KaxReferenceBlock *krefblock; - KaxBlock *kblock; - - block = NULL; - block_duration = -1; - block_bref = 0; - block_fref = 0; - - l2->Read(*es, KaxBlockGroup::ClassInfos.Context, upper_lvl_el, l3, - true); - - kbdur = FINDFIRST(l2, KaxBlockDuration); - if (kbdur != NULL) - block_duration = uint64(*kbdur); - - kblock = FINDFIRST(l2, KaxBlock); - if (kblock != NULL) { - kblock->SetParent(*mkv_d->cluster); - if ((mkv_d->stop_timecode > 0) && - ((kblock->GlobalTimecode() / 1000000 - mkv_d->first_tc) >= - mkv_d->stop_timecode)) { - delete l2; - return 0; - } - } - - krefblock = FINDFIRST(l2, KaxReferenceBlock); - while (krefblock != NULL) { - if (int64(*krefblock) < 0) - block_bref = int64(*krefblock); - else - block_fref = int64(*krefblock); - - krefblock = FINDNEXT(l2, KaxReferenceBlock, krefblock); - } - - if (kblock != NULL) { - // Clear the subtitles if they're obsolete now. - lines_cut = false; - for (linei = 0; linei < mkv_d->subs.lines; linei++) { - if (mkv_d->clear_subs_at[linei] <= - (kblock->GlobalTimecode() / 1000000 - mkv_d->first_tc)) { - sl = linei; - texttmp = mkv_d->subs.text[sl]; - while (sl < mkv_d->subs.lines) { - mkv_d->subs.text[sl] = mkv_d->subs.text[sl + 1]; - mkv_d->clear_subs_at[sl] = mkv_d->clear_subs_at[sl + 1]; - sl++; - } - mkv_d->subs.text[sl] = texttmp; - mkv_d->subs.lines--; - linei--; - lines_cut = true; - } - if (lines_cut) { - vo_sub = &mkv_d->subs; - vo_osd_changed(OSDTYPE_SUBTITLE); - } - } - - ds = NULL; - if ((mkv_d->video != NULL) && - (mkv_d->video->tnum == kblock->TrackNum())) { - ds = d->video; - t = mkv_d->video; - } else if ((mkv_d->audio != NULL) && - (mkv_d->audio->tnum == kblock->TrackNum())) { - ds = d->audio; - t = mkv_d->audio; - } else if ((mkv_d->subs_track != NULL) && - (mkv_d->subs_track->tnum == kblock->TrackNum())) { - ds = d->sub; - t = mkv_d->subs_track; - } - - use_this_block = true; - - current_pts = (float)(kblock->GlobalTimecode() / 1000000.0 - - mkv_d->first_tc) / 1000.0; - if (current_pts < 0.0) - current_pts = 0.0; - - if (ds == d->audio) { - if (mkv_d->a_skip_to_keyframe && - (block_bref != 0)) - use_this_block = false; - - else if (mkv_d->v_skip_to_keyframe) - use_this_block = false; - - if (mkv_d->audio->fix_i_bps && use_this_block) { - uint32_t i, sum; - sh_audio_t *sh; - - for (i = 0, sum = 0; i < kblock->NumberFrames(); i++) { - DataBuffer &data = kblock->GetBuffer(i); - sum += data.Size(); - } - sh = (sh_audio_t *)ds->sh; - if (block_duration != -1) { - sh->i_bps = sum * 1000 / block_duration; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Changed i_bps to %d.\n", - sh->i_bps); - mkv_d->audio->fix_i_bps = false; - } else if (mkv_d->audio->qt_last_a_pts == 0.0) - mkv_d->audio->qt_last_a_pts = current_pts; - else if (mkv_d->audio->qt_last_a_pts != current_pts) { - sh->i_bps = (int)(sum / (current_pts - - mkv_d->audio->qt_last_a_pts)); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Changed i_bps to %d.\n", - sh->i_bps); - mkv_d->audio->fix_i_bps = false; - } - } - - } else if ((current_pts * 1000) < mkv_d->skip_to_timecode) - use_this_block = false; - - else if (ds == d->video) { - if (mkv_d->v_skip_to_keyframe && - (block_bref != 0)) - use_this_block = false; - - } else if ((mkv_d->subs_track != NULL) && - (mkv_d->subs_track->tnum == kblock->TrackNum())) { - if (mkv_d->subtitle_type != MKV_SUBTYPE_VOBSUB) { - if (!mkv_d->v_skip_to_keyframe) - handle_subtitles(d, kblock, block_duration); - use_this_block = false; - } - - } else - use_this_block = false; - - if (use_this_block) { - mkv_d->last_pts = current_pts; - ds->pts = current_pts; - d->filepos = mkv_d->in->getFilePointer(); - mkv_d->last_filepos = d->filepos; - - for (i = 0; i < (int)kblock->NumberFrames(); i++) { - unsigned char *re_buffer; - uint32_t re_size; - bool re_modified; - DataBuffer &data = kblock->GetBuffer(i); - - re_buffer = data.Buffer(); - re_size = data.Size(); - re_modified = reverse_encodings(t, re_buffer, re_size, 1); - - if ((ds == d->video) && mkv_d->video->realmedia) - handle_realvideo(d, re_buffer, re_size, block_bref == 0, - found_data); - - else if ((ds == d->audio) && mkv_d->audio->realmedia) - handle_realaudio(d, re_buffer, re_size, block_bref == 0, - found_data); - - else { - dp = new_demux_packet(re_size); - memcpy(dp->buffer, re_buffer, re_size); - dp->flags = block_bref == 0 ? 1 : 0; - dp->pts = mkv_d->last_pts + i * t->default_duration; - ds_add_packet(ds, dp); - found_data++; - } - if (re_modified) - safefree(re_buffer); - } - if (ds == d->video) { - mkv_d->v_skip_to_keyframe = false; - mkv_d->skip_to_timecode = 0; - } else if (ds == d->audio) - mkv_d->a_skip_to_keyframe = false; - } - - delete block; - } // kblock != NULL - - } else - l2->SkipData(*es, l2->Generic().Context); - - if (!in_parent(l1)) { - delete l2; - break; - } - - if (upper_lvl_el > 0) { - upper_lvl_el--; - if (upper_lvl_el > 0) - break; - delete l2; - l2 = l3; - continue; - - } else if (upper_lvl_el < 0) { - upper_lvl_el++; - if (upper_lvl_el < 0) - break; - - } - - l2->SkipData(*es, l2->Generic().Context); - delete l2; - l2 = es->FindNextElement(l1->Generic().Context, upper_lvl_el, - 0xFFFFFFFFL, true); - - } // while (l2 != NULL) - - } else if (EbmlId(*l1) == KaxCues::ClassInfos.GlobalId) - return 0; - else - l1->SkipData(*es, l1->Generic().Context); - - if (!in_parent(l0)) { - delete l1; - break; - } - - if (upper_lvl_el > 0) { - upper_lvl_el--; - if (upper_lvl_el > 0) - break; - delete l1; - l1 = l2; - continue; - - } else if (upper_lvl_el < 0) { - upper_lvl_el++; - if (upper_lvl_el < 0) - break; - - } - - if (exit_loop) - break; - - l1->SkipData(*es, l1->Generic().Context); - delete l1; - l1 = es->FindNextElement(l0->Generic().Context, upper_lvl_el, - 0xFFFFFFFFL, true); - - } // while (l1 != NULL) - } catch (exception ex) { - mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] exception caught\n"); - return 0; - } - - if (found_data) - return 1; - - return 0; -} - -extern "C" void resync_audio_stream(sh_audio_t *sh_audio); - -extern "C" void demux_mkv_seek(demuxer_t *demuxer, float rel_seek_secs, - int flags) { - int i, k, upper_lvl_el; - mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)demuxer->priv; - int64_t target_timecode, target_filepos = 0, min_diff, diff, current_pos; - int64_t cluster_pos; - mkv_track_index_t *index; - mkv_index_entry_t *entry; - EbmlElement *l1; - - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] SEEK, relss: %.3f, flags: %d\n", - rel_seek_secs, flags); - - if (!mkv_d->cues_found && !mkv_d->cues_searched) { - // We've not found an index so far. So let's skip over all level 1 - // elements until we either hit another segment, the end of the file - // or - suprise - some cues. - current_pos = mkv_d->in->getFilePointer(); - - // Skip the data but do not delete the element! This is our current - // cluster, and we need it later on in demux_mkv_fill_buffer. - l1 = mkv_d->saved_l1; - l1->SkipData(static_cast(*mkv_d->es), l1->Generic().Context); - l1 = mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - while (l1 != NULL) { - if (upper_lvl_el) - break; - - if (EbmlId(*l1) == KaxCues::ClassInfos.GlobalId) { - parse_cues(mkv_d, l1->GetElementPosition()); - delete l1; - break; - } else { - if (EbmlId(*l1) == KaxCluster::ClassInfos.GlobalId) - add_cluster_position(mkv_d, l1->GetElementPosition()); - l1->SkipData(static_cast(*mkv_d->es), - l1->Generic().Context); - delete l1; - l1 = mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - } - } - - if (demuxer->stream->eof) - stream_reset(demuxer->stream); - mkv_d->in->setFilePointer(current_pos); - - mkv_d->cues_searched = 1; - } - - if (!(flags & 2)) { // Time in secs - if (flags & 1) // Absolute seek - target_timecode = 0; - else // Relative seek - target_timecode = (int64_t)(mkv_d->last_pts * 1000.0); - target_timecode += (int64_t)(rel_seek_secs * 1000.0); - if (target_timecode < 0) - target_timecode = 0; - - min_diff = 0xFFFFFFFL; - - // Let's find the entry in the index with the smallest difference - // to the wanted timecode. - entry = NULL; - for (i = 0; i < mkv_d->num_indexes; i++) - if (mkv_d->index[i].tnum == mkv_d->video->tnum) { - index = &mkv_d->index[i]; - for (k = 0; k < index->num_entries; k++) { - if (!index->entries[k].is_key) - continue; - diff = target_timecode - (int64_t)index->entries[k].timecode; - if (((flags & 1) || (target_timecode <= (mkv_d->last_pts * 1000))) && - (diff >= 0) && (diff < min_diff)) { - min_diff = diff; - entry = &index->entries[k]; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek BACK, solution: last_pts: " - "%d, target: %d, diff: %d, entry->timecode: %d, PREV diff: " - "%d, k: %d\n", (int)(mkv_d->last_pts * 1000), - (int)target_timecode, (int)diff, (int)entry->timecode, - k > 0 ? (int)(index->entries[k - 1].timecode - - target_timecode) : 0, k); - - } else if ((target_timecode > (mkv_d->last_pts * 1000)) && - (diff < 0) && (-diff < min_diff)) { - min_diff = -diff; - entry = &index->entries[k]; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek FORW, solution: last_pts: " - "%d, target: %d, diff: %d, entry->timecode: %d, NEXT diff: " - "%d, k: %d\n", (int)(mkv_d->last_pts * 1000), - (int)target_timecode, (int)diff, (int)entry->timecode, - k < index->num_entries ? - (int)(index->entries[k + 1].timecode - target_timecode) : - 0, k); - } - } - break; - } - - if (mkv_d->saved_l1 != NULL) - delete mkv_d->saved_l1; - - if (mkv_d->saved_l2 != NULL) { - delete mkv_d->saved_l2; - mkv_d->saved_l2 = NULL; - } - - if (entry != NULL) { // We've found an entry. - mkv_d->in->setFilePointer(entry->filepos); - upper_lvl_el = 0; - mkv_d->saved_l1 = - mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - } else { // We've not found an entry --> no index? - target_filepos = (int64_t)(target_timecode * mkv_d->last_filepos / - (mkv_d->last_pts * 1000.0)); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No index entry found. Calculated " - "filepos %lld. Old timecode %lld.\n", target_filepos, - (int64_t)(mkv_d->last_pts * 1000.0)); - // Let's find the nearest cluster so that libebml does not have to - // do so much work. - cluster_pos = 0; - min_diff = 0x0FFFFFFFL; - for (i = 0; i < mkv_d->num_cluster_pos; i++) { - diff = mkv_d->cluster_positions[i] - target_filepos; - if (rel_seek_secs < 0) { - if ((diff > 0) && (diff < min_diff)) { - cluster_pos = mkv_d->cluster_positions[i]; - min_diff = diff; - } - } else if ((diff < 0 ? -1 * diff : diff) < min_diff) { - cluster_pos = mkv_d->cluster_positions[i]; - min_diff = diff < 0 ? -1 * diff : diff; - } - } - if (min_diff != 0x0FFFFFFFL) { - target_filepos = cluster_pos; - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] New target_filepos because of " - "cluster: %lld.\n", target_filepos); - } - if (target_filepos >= demuxer->movi_end) - return; - mkv_d->in->setFilePointer(target_filepos); - upper_lvl_el = 0; - mkv_d->saved_l1 = - mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, - upper_lvl_el, 0xFFFFFFFFL, true, 1); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek result: target_timecode %lld, " - "did not find an entry. Calculated target_filspos: %lld\n", - target_timecode, target_filepos); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek found %p (%s).\n", - mkv_d->saved_l1, mkv_d->saved_l1 == NULL ? "null" : - mkv_d->saved_l1->Generic().DebugName); - } - - if (mkv_d->video != NULL) - mkv_d->v_skip_to_keyframe = true; - if (rel_seek_secs > 0.0) - mkv_d->skip_to_timecode = target_timecode; - - mkv_d->a_skip_to_keyframe = true; - - demux_mkv_fill_buffer(demuxer); - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] New timecode: %lld\n", - (int64_t)(mkv_d->last_pts * 1000.0)); - - mkv_d->subs.lines = 0; - vo_sub = &mkv_d->subs; - vo_osd_changed(OSDTYPE_SUBTITLE); - - if(demuxer->audio->sh != NULL) - resync_audio_stream((sh_audio_t *)demuxer->audio->sh); - - } else - mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek unsupported flags\n"); - -} - -extern "C" void demux_close_mkv(demuxer_t *demuxer) { - mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)demuxer->priv; - - free_mkv_demuxer(mkv_d); - -#ifdef USE_ICONV - subcp_close(); -#endif -} - -extern "C" int demux_mkv_control(demuxer_t *demuxer, int cmd, void *arg) { - mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)demuxer->priv; - - switch (cmd) { - case DEMUXER_CTRL_GET_TIME_LENGTH: - if (mkv_d->duration == -1.0) - return DEMUXER_CTRL_DONTKNOW; - - *((unsigned long *)arg) = (unsigned long)mkv_d->duration; - return DEMUXER_CTRL_OK; - - case DEMUXER_CTRL_GET_PERCENT_POS: - if (mkv_d->duration == -1.0) { - if (demuxer->movi_start == demuxer->movi_end) - return DEMUXER_CTRL_DONTKNOW; - - *((int *)arg) = - (int)((demuxer->filepos - demuxer->movi_start) / - ((demuxer->movi_end - demuxer->movi_start) / 100)); - return DEMUXER_CTRL_OK; - } - - *((int *)arg) = (int)(100 * mkv_d->last_pts / mkv_d->duration); - return DEMUXER_CTRL_OK; - - default: - return DEMUXER_CTRL_NOTIMPL; - } -} - -#endif /* HAVE_MATROSKA */ diff --git a/libmpdemux/demux_mkv_old.cpp b/libmpdemux/demux_mkv_old.cpp new file mode 100644 index 0000000000..47f3b4cbfc --- /dev/null +++ b/libmpdemux/demux_mkv_old.cpp @@ -0,0 +1,3182 @@ +// Matroska demuxer +// written by Moritz Bunkus +// License: GPL of course ;) + +// $Id$ + +extern "C" { +#include "config.h" +} + +#ifdef HAVE_MATROSKA + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include +#include +#if LIBMATROSKA_VERSION >= 000503 +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +extern "C" { +#include +#include +#include +#include + +#ifdef HAVE_ZLIB +#include +#endif + +#include "../mp_msg.h" +#include "../help_mp.h" +#include "stream.h" +#include "demuxer.h" +#include "stheader.h" + +#include "../subreader.h" +#include "../libvo/sub.h" + +} + +#include "matroska.h" + +using namespace libebml; +using namespace libmatroska; +using namespace std; + +#if LIBEBML_VERSION < 000500 +#error libebml version too old - need at least 0.5.0 +#endif + +// for e.g. "-slang ger" +extern char *dvdsub_lang; +extern char *audio_lang; +// for "-chapter x-y" +extern int dvd_chapter; +extern int dvd_last_chapter; + +// default values for Matroska elements +#define MKVD_TIMECODESCALE 1000000 // 1000000 = 1ms + +#define MKV_SUBTYPE_TEXT 1 +#define MKV_SUBTYPE_SSA 2 +#define MKV_SUBTYPE_VOBSUB 3 + +#define MKV_SUBCOMPRESSION_NONE 0 +#define MKV_SUBCOMPRESSION_ZLIB 1 + +#define safefree(m) { if (m != NULL) free(m); } +void *safemalloc(int bytes) { + void *dst; + + dst = malloc(bytes); + if (dst == NULL) { + mp_msg(MSGT_DEMUX, MSGL_FATAL, "[mkv] Could not allocate %d bytes of " + "memory.\n", bytes); + exit(1); + } + + return dst; +} + +void *safememdup(const void *src, int bytes) { + void *dst; + + dst = safemalloc(bytes); + memcpy(dst, src, bytes); + + return dst; +} + +class mpstream_io_callback: public IOCallback { + private: + stream_t *s; + public: + mpstream_io_callback(stream_t *stream); + + virtual uint32 read(void *buffer, size_t size); + virtual void setFilePointer(int64 offset, seek_mode mode = seek_beginning); + virtual size_t write(const void *buffer, size_t size); + virtual uint64 getFilePointer(); + virtual void close(); +}; + +mpstream_io_callback::mpstream_io_callback(stream_t *stream) { + s = stream; +} + +uint32 mpstream_io_callback::read(void *buffer, size_t size) { + uint32_t result; + + result = stream_read(s, (char *)buffer, size); + + return result; +} + +void mpstream_io_callback::setFilePointer(int64 offset, seek_mode mode) { + int64 new_pos; + + if (mode == seek_beginning) + new_pos = offset + s->start_pos; + else if (mode == seek_end) + new_pos = s->end_pos - offset; + else + new_pos = s->pos + offset; + + if (new_pos > s->end_pos) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek warning: new_pos %lld > end_pos " + "%lld\n", new_pos, s->end_pos); + return; + } + + stream_seek(s, new_pos); +} + +size_t mpstream_io_callback::write(const void */*buffer*/, size_t /*size*/) { + return 0; +} + +uint64 mpstream_io_callback::getFilePointer() { + return s->pos - s->buf_len + s->buf_pos; +} + +void mpstream_io_callback::close() { +} + +typedef struct mkv_index_entry { + uint64_t timecode, filepos; + int is_key; +} mkv_index_entry_t; + +typedef struct mkv_track_index { + uint32_t tnum; + int num_entries; + mkv_index_entry_t *entries; +} mkv_track_index_t; + +typedef struct { + uint32_t order, type, scope; + uint32_t comp_algo; + unsigned char *comp_settings; + uint32_t comp_settings_len; + uint32_t enc_algo, sig_algo, sig_hash_algo; + unsigned char *enc_keyid, *sig_keyid, *signature; + uint32_t enc_keyid_len, sig_keyid_len, signature_len; +} mkv_content_encoding_t; + +typedef struct { + int64_t start, end; +} mkv_chapter_t; + +typedef struct mkv_track { + uint32_t tnum, xid; + + char *codec_id; + int ms_compat; + char *language; + + char type; // 'v' = video, 'a' = audio, 's' = subs + + char v_fourcc[5]; + uint32_t v_width, v_height, v_dwidth, v_dheight; + float v_frate; + + uint32_t a_formattag; + uint32_t a_channels, a_bps; + float a_sfreq; + + float default_duration; + + int default_track; + + void *private_data; + unsigned int private_size; + + // For Vorbis audio + unsigned char *headers[3]; + uint32_t header_sizes[3]; + + int ok; + + // Stuff for RealMedia + bool realmedia; + demux_packet_t *rm_dp; + int rm_seqnum, rv_kf_base, rv_kf_pts; + float rv_pts; // previous video timestamp + float ra_pts; // previous audio timestamp + + // Stuff for QuickTime + bool fix_i_bps; + float qt_last_a_pts; + + // Stuff for VobSubs + mkv_sh_sub_t sh_sub; + + // Generic content encoding support. + vector *c_encodings; +} mkv_track_t; + +typedef struct mkv_demuxer { + float duration, last_pts; + uint64_t last_filepos; + + mkv_track_t **tracks; + int num_tracks; + mkv_track_t *video, *audio, *subs_track; + + uint64_t tc_scale, cluster_tc, first_tc; + + mpstream_io_callback *in; + + uint64_t clear_subs_at[SUB_MAX_TEXT]; + + subtitle subs; + int subtitle_type; + + EbmlStream *es; + EbmlElement *saved_l1, *saved_l2; + KaxSegment *segment; + KaxCluster *cluster; + + mkv_track_index_t *index; + int num_indexes, cues_found, cues_searched; + int64_t *cluster_positions; + int num_cluster_pos; + vector *parsed_seekheads; + vector *parsed_cues; + + int64_t skip_to_timecode; + bool v_skip_to_keyframe, a_skip_to_keyframe; + + vector *chapters; // No support for nested chapters atm. + uint64_t stop_timecode; +} mkv_demuxer_t; + +typedef struct { + uint32_t chunks; // number of chunks + uint32_t timestamp; // timestamp from packet header + uint32_t len; // length of actual data + uint32_t chunktab; // offset to chunk offset array +} dp_hdr_t; + +#if __GNUC__ == 2 +#pragma pack(2) +#else +#pragma pack(push,2) +#endif + +typedef struct { + uint32_t size; + uint32_t fourcc1; + uint32_t fourcc2; + uint16_t width; + uint16_t height; + uint16_t bpp; + uint32_t unknown1; + uint32_t fps; + uint32_t type1; + uint32_t type2; +} real_video_props_t; + +typedef struct { + uint32_t fourcc1; // '.', 'r', 'a', 0xfd + uint16_t version1; // 4 or 5 + uint16_t unknown1; // 00 000 + uint32_t fourcc2; // .ra4 or .ra5 + uint32_t unknown2; // ??? + uint16_t version2; // 4 or 5 + uint32_t header_size; // == 0x4e + uint16_t flavor; // codec flavor id + uint32_t coded_frame_size; // coded frame size + uint32_t unknown3; // big number + uint32_t unknown4; // bigger number + uint32_t unknown5; // yet another number + uint16_t sub_packet_h; + uint16_t frame_size; + uint16_t sub_packet_size; + uint16_t unknown6; // 00 00 + uint16_t sample_rate; + uint16_t unknown8; // 0 + uint16_t sample_size; + uint16_t channels; +} real_audio_v4_props_t; + +typedef struct { + uint32_t fourcc1; // '.', 'r', 'a', 0xfd + uint16_t version1; // 4 or 5 + uint16_t unknown1; // 00 000 + uint32_t fourcc2; // .ra4 or .ra5 + uint32_t unknown2; // ??? + uint16_t version2; // 4 or 5 + uint32_t header_size; // == 0x4e + uint16_t flavor; // codec flavor id + uint32_t coded_frame_size; // coded frame size + uint32_t unknown3; // big number + uint32_t unknown4; // bigger number + uint32_t unknown5; // yet another number + uint16_t sub_packet_h; + uint16_t frame_size; + uint16_t sub_packet_size; + uint16_t unknown6; // 00 00 + uint8_t unknown7[6]; // 0, srate, 0 + uint16_t sample_rate; + uint16_t unknown8; // 0 + uint16_t sample_size; + uint16_t channels; + uint32_t genr; // "genr" + uint32_t fourcc3; // fourcc +} real_audio_v5_props_t; + +// I have to (re)define this struct here because g++ will not compile +// components.h from the qtsdk if I include it. +typedef struct { + uint32_t id_size; + uint32_t codec_type; + uint32_t reserved1; + uint16_t reserved2; + uint16_t data_reference_index; + uint16_t version; + uint16_t revision; + uint32_t vendor; + uint32_t temporal_quality; + uint32_t spatial_quality; + uint16_t width; + uint16_t height; + uint32_t horizontal_resolution; // 32bit fixed-point number + uint32_t vertical_resolution; // 32bit fixed-point number + uint32_t data_size; + uint16_t frame_count; + char compressor_name[32]; + uint16_t depth; + uint16_t color_table_id; +} qt_image_description_t; + +#if __GNUC__ == 2 +#pragma pack() +#else +#pragma pack(pop) +#endif + +static uint16_t get_uint16(const void *buf) { + uint16_t ret; + unsigned char *tmp; + + tmp = (unsigned char *) buf; + + ret = tmp[1] & 0xff; + ret = (ret << 8) + (tmp[0] & 0xff); + + return ret; +} + +static uint32_t get_uint32(const void *buf) { + uint32_t ret; + unsigned char *tmp; + + tmp = (unsigned char *) buf; + + ret = tmp[3] & 0xff; + ret = (ret << 8) + (tmp[2] & 0xff); + ret = (ret << 8) + (tmp[1] & 0xff); + ret = (ret << 8) + (tmp[0] & 0xff); + + return ret; +} + +static uint16_t get_uint16_be(const void *buf) { + uint16_t ret; + unsigned char *tmp; + + tmp = (unsigned char *) buf; + + ret = tmp[0] & 0xff; + ret = (ret << 8) + (tmp[1] & 0xff); + + return ret; +} + +static uint32_t get_uint32_be(const void *buf) { + uint32_t ret; + unsigned char *tmp; + + tmp = (unsigned char *) buf; + + ret = tmp[0] & 0xff; + ret = (ret << 8) + (tmp[1] & 0xff); + ret = (ret << 8) + (tmp[2] & 0xff); + ret = (ret << 8) + (tmp[3] & 0xff); + + return ret; +} + +unsigned char read_char(unsigned char *p, int &pos, int size) { + if ((pos + 1) > size) + throw exception(); + pos++; + return p[pos - 1]; +} + +unsigned short read_word(unsigned char *p, int &pos, int size) { + unsigned short v; + + if ((pos + 2) > size) + throw exception(); + v = p[pos]; + v = (v << 8) | (p[pos + 1] & 0xff); + pos += 2; + return v; +} + +unsigned int read_dword(unsigned char *p, int &pos, int size) { + unsigned int v; + + if ((pos + 4) > size) + throw exception(); + v = p[pos]; + v = (v << 8) | (p[pos + 1] & 0xff); + v = (v << 8) | (p[pos + 2] & 0xff); + v = (v << 8) | (p[pos + 3] & 0xff); + pos += 4; + return v; +} + +static void +finish_text_sub_handling(mkv_demuxer_t *mkv_d, KaxBlock *block, + int64_t duration, int first_line) { + int i; + +#ifdef USE_ICONV + subcp_recode1(&mkv_d->subs); +#endif + + vo_sub = &mkv_d->subs; + vo_osd_changed(OSDTYPE_SUBTITLE); + + for (i = first_line; i <= (mkv_d->subs.lines - 1); i++) + mkv_d->clear_subs_at[i] = block->GlobalTimecode() / 1000000 - + mkv_d->first_tc + duration; +} + +static void handle_subtitles(demuxer_t *d, KaxBlock *block, int64_t duration) { + mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)d->priv; + int len, line, state, i, first_line; + char *s1, *s2, *buffer; + + if (duration == -1) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: No KaxBlockDuration " + "element for subtitle track found.\n"); + return; + } + + DataBuffer &data = block->GetBuffer(0); + len = data.Size(); + + buffer = (char *)data.Buffer(); + s1 = buffer; + + while (((*s1 == '\n') || (*s1 == '\r')) && + ((unsigned int)(s1 - buffer) <= data.Size())) + s1++; + + line = 0; + mkv_d->subs.lines++; + if (mkv_d->subs.lines > SUB_MAX_TEXT) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many sublines to " + "render, skipping\n"); + mkv_d->subs.lines = SUB_MAX_TEXT; + return; + } + first_line = mkv_d->subs.lines - 1; + s2 = mkv_d->subs.text[mkv_d->subs.lines - 1]; + state = 0; + + if (mkv_d->subtitle_type == MKV_SUBTYPE_SSA) { + /* Matroska's SSA format does not have timecodes embedded into + the SAA line. Timescodes are encoded into the blocks timecode + and duration. */ + + /* Find text section. */ + for (i = 0; (i < 8) && (*s1 != 0); s1++) + if (*s1 == ',') + i++; + + if (*s1 == 0) { // Broken line? + mkv_d->subs.lines--; + return; + } + + /* Load text. */ + while ((unsigned int)(s1 - buffer) < data.Size()) { + if (*s1 == '{') + state = 1; + else if ((*s1 == '}') && (state == 1)) + state = 2; + + if (state == 0) { + *s2 = *s1; + s2++; + if ((s2 - mkv_d->subs.text[mkv_d->subs.lines - 1]) >= 255) + break; + } + s1++; + + /* Newline */ + if ((*s1 == '\\') && ((unsigned int)(s1 + 1 - buffer) < data.Size()) && + ((*(s1 + 1) == 'N') || (*(s1 + 1) == 'n'))) { + *s2 = 0; + mkv_d->subs.lines++; + if (mkv_d->subs.lines > SUB_MAX_TEXT) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many sublines to " + "render, skipping\n"); + mkv_d->subs.lines = SUB_MAX_TEXT; + finish_text_sub_handling(mkv_d, block, duration, first_line); + return; + } + s2 = mkv_d->subs.text[mkv_d->subs.lines - 1]; + s1 += 2; + } + + if (state == 2) + state = 0; + } + *s2 = 0; + + } else { + while ((unsigned int)(s1 - buffer) != data.Size()) { + if ((*s1 == '\n') || (*s1 == '\r')) { + if (state == 0) { // normal char --> newline + if (mkv_d->subs.lines == SUB_MAX_TEXT) + break; + *s2 = 0; + mkv_d->clear_subs_at[mkv_d->subs.lines - 1]= + block->GlobalTimecode() / 1000000 - mkv_d->first_tc + duration; + s2 = mkv_d->subs.text[mkv_d->subs.lines]; + mkv_d->subs.lines++; + state = 1; + } + } else if (*s1 == '<') // skip HTML tags + state = 2; + else if (*s1 == '>') + state = 0; + else if (state != 2) { // normal character + state = 0; + if ((s2 - mkv_d->subs.text[mkv_d->subs.lines - 1]) < 255) { + *s2 = *s1; + s2++; + } + } + s1++; + } + + *s2 = 0; + } + + finish_text_sub_handling(mkv_d, block, duration, first_line); +} + +static mkv_track_t *new_mkv_track(mkv_demuxer_t *d) { + mkv_track_t *t; + + t = (mkv_track_t *)safemalloc(sizeof(mkv_track_t)); + memset(t, 0, sizeof(mkv_track_t)); + d->tracks = (mkv_track_t **)realloc(d->tracks, (d->num_tracks + 1) * + sizeof(mkv_track_t *)); + if (d->tracks == NULL) + return NULL; + d->tracks[d->num_tracks] = t; + d->num_tracks++; + + // Set default values. + t->default_track = 1; + t->a_sfreq = 8000.0; + t->a_channels = 1; + t->language = strdup("eng"); + + t->c_encodings = new vector; + + return t; +} + +static mkv_track_t *find_track_by_num(mkv_demuxer_t *d, uint32_t n, + char track_type) { + int i; + + for (i = 0; i < d->num_tracks; i++) + if ((d->tracks[i] != NULL) && (d->tracks[i]->type == track_type) && + (d->tracks[i]->xid == n)) + return d->tracks[i]; + + return NULL; +} + +static mkv_track_t *find_duplicate_track_by_num(mkv_demuxer_t *d, uint32_t n, + mkv_track_t *c) { + int i; + + for (i = 0; i < d->num_tracks; i++) + if ((d->tracks[i] != NULL) && (d->tracks[i]->tnum == n) && + (d->tracks[i] != c)) + return d->tracks[i]; + + return NULL; +} + +static mkv_track_t *find_track_by_language(mkv_demuxer_t *d, char *language, + mkv_track_t *c, char type = 's') { + int i; + + for (i = 0; i < d->num_tracks; i++) + if ((d->tracks[i] != NULL) && (d->tracks[i] != c) && + (d->tracks[i]->language != NULL) && + !strcmp(d->tracks[i]->language, language) && + (d->tracks[i]->type == type)) + return d->tracks[i]; + + return NULL; +} + +static bool mkv_parse_idx(mkv_track_t *t) { + uint32_t i, p, things_found; + int idx; + string line, s1, s2; + char *src; + + if ((t->private_data == NULL) || (t->private_size < 1)) + return false; + + things_found = 0; + i = 0; + src = (char *)t->private_data; + do { + line = ""; + while ((i < t->private_size) && (src[i] != '\n') && (src[i] != '\r')) { + if (!isspace(src[i])) + line += src[i]; + i++; + } + while ((i < t->private_size) && ((src[i] == '\n') || (src[i] == '\r'))) + i++; + + if (!strncasecmp(line.c_str(), "size:", 5)) { + s1 = line.substr(5); + idx = s1.find('x'); + if (idx >= 0) { + s2 = s1.substr(idx + 1); + s1.erase(idx); + t->sh_sub.width = strtol(s1.c_str(), NULL, 10); + t->sh_sub.height = strtol(s2.c_str(), NULL, 10); + things_found |= 1; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] VobSub IDX parser: size: %d x %d\n", + t->sh_sub.width, t->sh_sub.height); + } + + } else if (!strncasecmp(line.c_str(), "palette:", 8)) { + s1 = line.substr(8); + for (p = 0; p < 15; p++) { + idx = s1.find(','); + if (idx < 0) + break; + s2 = s1.substr(0, idx); + s1.erase(0, idx + 1); + t->sh_sub.palette[p] = (unsigned int)strtol(s2.c_str(), NULL, 16); + } + if (idx >= 0) { + t->sh_sub.palette[15] = (unsigned int)strtol(s1.c_str(), NULL, 16); + things_found |= 2; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] VobSub IDX parser: palette: 0x%06x " + "0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x " + "0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x 0x%06x\n", + t->sh_sub.palette[0], t->sh_sub.palette[1], + t->sh_sub.palette[2], t->sh_sub.palette[3], + t->sh_sub.palette[4], t->sh_sub.palette[5], + t->sh_sub.palette[6], t->sh_sub.palette[7], + t->sh_sub.palette[8], t->sh_sub.palette[9], + t->sh_sub.palette[10], t->sh_sub.palette[11], + t->sh_sub.palette[12], t->sh_sub.palette[13], + t->sh_sub.palette[14], t->sh_sub.palette[15]); + } + } + + } while ((i != t->private_size) && (things_found != 3)); + t->sh_sub.type = 'v'; + + return (things_found == 3); +} + +static bool reverse_encodings(mkv_track_t *track, unsigned char *&data, + uint32_t &size, uint32_t type) { + int new_size, n; + unsigned char *new_data, *old_data; + bool modified; + vector::iterator ce; + + if (track->c_encodings->size() == 0) + return false; + + new_data = data; + new_size = size; + modified = false; + for (ce = track->c_encodings->begin(); ce < track->c_encodings->end(); + ce++) { + if ((ce->scope & type) == 0) + continue; + +#ifdef HAVE_ZLIB + if (ce->comp_algo == 0) { + int result; + z_stream zstream; + + old_data = new_data; + + zstream.zalloc = (alloc_func)0; + zstream.zfree = (free_func)0; + zstream.opaque = (voidpf)0; + result = inflateInit(&zstream); + if (result != Z_OK) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Zlib initialization failed. " + "Result: %d\n", result); + safefree(new_data); + data = old_data; + size = new_size; + return modified; + } + zstream.next_in = (Bytef *)old_data; + zstream.avail_in = new_size; + + n = 0; + new_data = NULL; + do { + n++; + new_data = (unsigned char *)realloc(new_data, n * 4000); + zstream.next_out = (Bytef *)&new_data[(n - 1) * 4000]; + zstream.avail_out = 4000; + result = inflate(&zstream, Z_NO_FLUSH); + if ((result != Z_OK) && (result != Z_STREAM_END)) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Zlib decompression failed. " + "Result: %d \n", result); + safefree(new_data); + data = old_data; + size = new_size; + inflateEnd(&zstream); + return modified; + } + } while ((zstream.avail_out == 0) && + (zstream.avail_in != 0) && (result != Z_STREAM_END)); + + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] zlib decompression: from %d to " + "%d \n", (int)new_size, (int)zstream.total_out); + new_size = zstream.total_out; + inflateEnd(&zstream); + + if (modified) + safefree(old_data); + modified = true; + } +#endif + } + + data = new_data; + size = new_size; + + return modified; +} + +static int check_track_information(mkv_demuxer_t *d) { + int i, track_num; + unsigned char *c; + uint32_t u, offset, length; + mkv_track_t *t; + mkv_content_encoding_t *ce; + BITMAPINFOHEADER *bih; + WAVEFORMATEX *wfe; + + for (track_num = 0; track_num < d->num_tracks; track_num++) { + t = d->tracks[track_num]; + + t->ok = 1; + for (i = 0; i < (int)t->c_encodings->size(); i++) { + ce = &(*t->c_encodings)[i]; + + if (ce->type == 1) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Track number %u has been " + "encrypted and decryption has not yet been implemented. " + "Skipping track.\n", t->tnum); + t->ok = 0; + break; + } + + if (ce->type != 0) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown content encoding type %u " + "for track %u. Skipping track.\n", ce->type, t->tnum); + t->ok = 0; + break; + } + + if (ce->comp_algo == 0) { +#if !defined(HAVE_ZLIB) + mp_msg(MSGT_DEMUX, MSGL_WARN, "Track %u was compressed with zlib but " + "mplayer has not been compiled with support for zlib " + "compression. Skipping track.\n", t->tnum); + t->ok = 0; + break; +#endif + } else { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Track %u has been compressed " + "with an unknown/unsupported compression algorithm (%u). " + "Skipping track.\n", t->tnum, ce->comp_algo); + t->ok = 0; + break; + } + } + + if (!t->ok) + continue; + t->ok = 0; + + if (t->private_data != NULL) { + c = (unsigned char *)t->private_data; + length = t->private_size; + if (reverse_encodings(t, c, length, 2)) { + safefree(t->private_data); + t->private_data = c; + t->private_size = length; + } + } + + switch (t->type) { + case 'v': // video track + if (t->codec_id == NULL) + continue; + if (!strcmp(t->codec_id, MKV_V_MSCOMP)) { + if ((t->private_data == NULL) || + (t->private_size < sizeof(BITMAPINFOHEADER))) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: CodecID for track " + "%u is '" MKV_V_MSCOMP "', but there was no " + "BITMAPINFOHEADER struct present. Therefore we don't have " + "a FourCC to identify the video codec used.\n", t->tnum); + continue; + } else { + t->ms_compat = 1; + + bih = (BITMAPINFOHEADER *)t->private_data; + + u = get_uint32(&bih->biWidth); + if (t->v_width != u) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS " + "compatibility mode, track %u) " + "Matrosa says video width is %u, but the " + "BITMAPINFOHEADER says %u.\n", t->tnum, t->v_width, u); + if (t->v_width == 0) + t->v_width = u; + } + + u = get_uint32(&bih->biHeight); + if (t->v_height != u) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS compatibility " + "mode, track %u) " + "Matrosa video height is %u, but the BITMAPINFOHEADER " + "says %u.\n", t->tnum, t->v_height, u); + if (t->v_height == 0) + t->v_height = u; + } + + memcpy(t->v_fourcc, &bih->biCompression, 4); + } + } + + if (t->v_width == 0) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The width for track %u was " + "not set.\n", t->tnum); + continue; + } + if (t->v_height == 0) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The height for track %u was " + "not set.\n", t->tnum); + continue; + } + + if (t->v_dwidth == 0) + t->v_dwidth = t->v_width; + if (t->v_dheight == 0) + t->v_dheight = t->v_height; + + // This track seems to be ok. + t->ok = 1; + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: video (%s), " + "-vid %u\n", t->tnum, t->codec_id, t->xid); + + break; + + case 'a': // audio track + if (t->codec_id == NULL) + continue; + if (!strcmp(t->codec_id, MKV_A_ACM)) { + if ((t->private_data == NULL) || + (t->private_size < sizeof(WAVEFORMATEX))) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: CodecID for track " + "%u is '" MKV_A_ACM "', " + "but there was no WAVEFORMATEX struct present. " + "Therefore we don't have a format ID to identify the audio " + "codec used.\n", t->tnum); + continue; + } else { + t->ms_compat = 1; + + wfe = (WAVEFORMATEX *)t->private_data; + u = get_uint32(&wfe->nSamplesPerSec); + if (((uint32_t)t->a_sfreq) != u) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS compatibility " + "mode for track %u) " + "Matroska says that there are %u samples per second, " + "but WAVEFORMATEX says that there are %u.\n", t->tnum, + (uint32_t)t->a_sfreq, u); + if (t->a_sfreq == 0.0) + t->a_sfreq = (float)u; + } + + u = get_uint16(&wfe->nChannels); + if (t->a_channels != u) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS " + "compatibility mode for track %u) " + "Matroska says that there are %u channels, but the " + "WAVEFORMATEX says that there are %u.\n", t->tnum, + t->a_channels, u); + if (t->a_channels == 0) + t->a_channels = u; + } + + u = get_uint16(&wfe->wBitsPerSample); + if (t->a_bps != u) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: (MS " + "compatibility mode for track %u) " + "Matroska says that there are %u bits per sample, " + "but the WAVEFORMATEX says that there are %u.\n", t->tnum, + t->a_bps, u); + if (t->a_bps == 0) + t->a_bps = u; + } + + t->a_formattag = get_uint16(&wfe->wFormatTag); + } + } else { + if (!strcmp(t->codec_id, MKV_A_MP3) || + !strcmp(t->codec_id, MKV_A_MP2)) + t->a_formattag = 0x0055; + else if (!strncmp(t->codec_id, MKV_A_AC3, strlen(MKV_A_AC3))) + t->a_formattag = 0x2000; + else if (!strcmp(t->codec_id, MKV_A_DTS)) + // uses same format tag as AC3, only supported with -hwac3 + t->a_formattag = 0x2000; + else if (!strcmp(t->codec_id, MKV_A_PCM) || + !strcmp(t->codec_id, MKV_A_PCM_BE)) + t->a_formattag = 0x0001; + else if (!strcmp(t->codec_id, MKV_A_AAC_2MAIN) || + !strncmp(t->codec_id, MKV_A_AAC_2LC, + strlen(MKV_A_AAC_2LC)) || + !strcmp(t->codec_id, MKV_A_AAC_2SSR) || + !strcmp(t->codec_id, MKV_A_AAC_4MAIN) || + !strncmp(t->codec_id, MKV_A_AAC_4LC, + strlen(MKV_A_AAC_4LC)) || + !strcmp(t->codec_id, MKV_A_AAC_4SSR) || + !strcmp(t->codec_id, MKV_A_AAC_4LTP)) + t->a_formattag = mmioFOURCC('M', 'P', '4', 'A'); + else if (!strcmp(t->codec_id, MKV_A_VORBIS)) { + if (t->private_data == NULL) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] WARNING: CodecID for " + "track %u is '" MKV_A_VORBIS + "', but there are no header packets present.", t->tnum); + continue; + } + + c = (unsigned char *)t->private_data; + if (c[0] != 2) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Vorbis track does not " + "contain valid headers.\n"); + continue; + } + + offset = 1; + for (i = 0; i < 2; i++) { + length = 0; + while ((c[offset] == (unsigned char )255) && + (length < t->private_size)) { + length += 255; + offset++; + } + if (offset >= (t->private_size - 1)) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Vorbis track does not " + "contain valid headers.\n"); + continue; + } + length += c[offset]; + offset++; + t->header_sizes[i] = length; + } + + t->headers[0] = &c[offset]; + t->headers[1] = &c[offset + t->header_sizes[0]]; + t->headers[2] = &c[offset + t->header_sizes[0] + + t->header_sizes[1]]; + t->header_sizes[2] = t->private_size - offset - + t->header_sizes[0] - t->header_sizes[1]; + + t->a_formattag = 0xFFFE; + } else if (!strcmp(t->codec_id, MKV_A_QDMC) || + !strcmp(t->codec_id, MKV_A_QDMC2)) { + ; + } else if (!strcmp(t->codec_id, MKV_A_FLAC)) { + if ((t->private_data == NULL) || (t->private_size == 0)) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] FLAC track does not " + "contain valid headers.\n"); + continue; + } + t->a_formattag = mmioFOURCC('f', 'L', 'a', 'C'); + } else if (t->private_size >= sizeof(real_audio_v4_props_t)) { + if (!strcmp(t->codec_id, MKV_A_REAL28)) + t->a_formattag = mmioFOURCC('2', '8', '_', '8'); + else if (!strcmp(t->codec_id, MKV_A_REALATRC)) + t->a_formattag = mmioFOURCC('a', 't', 'r', 'c'); + else if (!strcmp(t->codec_id, MKV_A_REALCOOK)) + t->a_formattag = mmioFOURCC('c', 'o', 'o', 'k'); + else if (!strcmp(t->codec_id, MKV_A_REALDNET)) + t->a_formattag = mmioFOURCC('d', 'n', 'e', 't'); + else if (!strcmp(t->codec_id, MKV_A_REALSIPR)) + t->a_formattag = mmioFOURCC('s', 'i', 'p', 'r'); + } else { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown/unsupported audio " + "codec ID '%s' for track %u or missing/faulty private " + "codec data.\n", t->codec_id, t->tnum); + continue; + } + } + + if (t->a_sfreq == 0.0) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The sampling frequency was not " + "set for track %u.\n", t->tnum); + continue; + } + + if (t->a_channels == 0) { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] The number of channels was not " + "set for track %u.\n", t->tnum); + continue; + } + + // This track seems to be ok. + t->ok = 1; + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: audio (%s), -aid " + "%u%s%s\n", t->tnum, t->codec_id, t->xid, + t->language != NULL ? ", -alang " : "", + t->language != NULL ? t->language : ""); + break; + + case 's': + if (!strcmp(t->codec_id, MKV_S_VOBSUB)) { + if (mkv_parse_idx(t)) { + t->ok = 1; + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: subtitles (%s), " + "-sid %u%s%s\n", t->tnum, t->codec_id, + t->xid, t->language != NULL ? ", -slang " : "", + t->language != NULL ? t->language : ""); + } + + } else { // Text subtitles do not need any data + t->ok = 1; // except the CodecID. + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: subtitles (%s), " + "-sid %u%s%s\n", t->tnum, t->codec_id, t->xid, + t->language != NULL ? ", -slang " : "", + t->language != NULL ? t->language : ""); + } + break; + + default: // unknown track type!? error in demuxer... + mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] Error in demux_mkv.cpp: unknown " + "demuxer type for track %u: '%c'\n", t->tnum, t->type); + continue; + } + + if (t->ok) + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Track %u seems to be ok.\n", t->tnum); + } + + return 1; +} + +static void free_mkv_demuxer(mkv_demuxer_t *d) { + int i, k; + + if (d == NULL) + return; + + for (i = 0; i < d->num_tracks; i++) + if (d->tracks[i] != NULL) { + if (d->tracks[i]->private_data != NULL) + free(d->tracks[i]->private_data); + if (d->tracks[i]->language != NULL) + free(d->tracks[i]->language); + for (k = 0; k < (int)d->tracks[i]->c_encodings->size(); k++) { + safefree((*d->tracks[i]->c_encodings)[k].comp_settings); + safefree((*d->tracks[i]->c_encodings)[k].enc_keyid); + safefree((*d->tracks[i]->c_encodings)[k].sig_keyid); + safefree((*d->tracks[i]->c_encodings)[k].signature); + } + delete d->tracks[i]->c_encodings; + free(d->tracks[i]); + } + + for (i = 0; i < d->num_indexes; i++) + free(d->index[i].entries); + free(d->index); + + for (i = 0; i <= SUB_MAX_TEXT; i++) + safefree(d->subs.text[i]); + + if (d->es != NULL) + delete d->es; + if (d->saved_l1 != NULL) + delete d->saved_l1; + if (d->in != NULL) + delete d->in; + if (d->segment != NULL) + delete d->segment; + if (d->chapters != NULL) + delete d->chapters; + + free(d); +} + +static void add_index_entry(mkv_demuxer_t *d, uint32_t tnum, uint64_t filepos, + uint64_t timecode, int is_key) { + int i, found; + mkv_index_entry_t *entry; + + for (i = 0, found = 0; i < d->num_indexes; i++) + if (d->index[i].tnum == tnum) { + found = 1; + break; + } + + if (!found) { + d->index = (mkv_track_index_t *)realloc(d->index, (d->num_indexes + 1) * + sizeof(mkv_track_index_t)); + if (d->index == NULL) + return; + i = d->num_indexes; + memset(&d->index[i], 0, sizeof(mkv_track_index_t)); + d->index[i].tnum = tnum; + d->num_indexes++; + } + + d->index[i].entries = + (mkv_index_entry_t *)realloc(d->index[i].entries, + (d->index[i].num_entries + 1) * + sizeof(mkv_index_entry_t)); + if (d->index[i].entries == NULL) + return; + entry = &d->index[i].entries[d->index[i].num_entries]; + entry->filepos = filepos; + entry->timecode = timecode; + entry->is_key = is_key; + d->index[i].num_entries++; +} + +static void add_cluster_position(mkv_demuxer_t *mkv_d, int64_t position) { + mkv_d->cluster_positions = (int64_t *)realloc(mkv_d->cluster_positions, + (mkv_d->num_cluster_pos + 1) * + sizeof(int64_t)); + if (mkv_d->cluster_positions != NULL) { + mkv_d->cluster_positions[mkv_d->num_cluster_pos] = position; + mkv_d->num_cluster_pos++; + } else + mkv_d->num_cluster_pos = 0; +} + +static int find_in_vector(vector &vec, uint64_t value) { + unsigned int i; + + for (i = 0; i < vec.size(); i++) + if (vec[i] == value) + return 1; + + return 0; +} + +#define in_parent(p) (mkv_d->in->getFilePointer() < \ + (p->GetElementPosition() + p->ElementSize())) +#define FINDFIRST(p, c) (static_cast \ + (((EbmlMaster *)p)->FindFirstElt(c::ClassInfos, false))) +#define FINDNEXT(p, c, e) (static_cast \ + (((EbmlMaster *)p)->FindNextElt(*e, false))) + +static void parse_cues(mkv_demuxer_t *mkv_d, uint64_t pos) { + EbmlElement *l2 = NULL; + EbmlStream *es; + KaxCues *cues; + KaxCuePoint *cpoint; + KaxCueTime *ctime; + KaxCueClusterPosition *ccpos; + KaxCueTrack *ctrack; + KaxCueTrackPositions *ctrackpos; + int upper_lvl_el, i, k; + uint64_t tc_scale, filepos = 0, timecode = 0; + uint32_t tnum = 0; + mkv_index_entry_t *entry; + + if (find_in_vector(*mkv_d->parsed_cues, pos)) + return; + + mkv_d->parsed_cues->push_back(pos); + + mkv_d->in->setFilePointer(pos); + + es = mkv_d->es; + tc_scale = mkv_d->tc_scale; + upper_lvl_el = 0; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing cues ] -----------\n"); + + cues = (KaxCues *)es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + if (cues == NULL) + return; + + if (!(EbmlId(*cues) == KaxCues::ClassInfos.GlobalId)) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No KaxCues element found but %s.\n" + "[mkv] \\---- [ parsing cues ] -----------\n", + cues->Generic().DebugName); + + return; + } + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ found cues\n"); + + cues->Read(*es, KaxCues::ClassInfos.Context, upper_lvl_el, l2, true); + + cpoint = FINDFIRST(cues, KaxCuePoint); + + while (cpoint != NULL) { + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue point\n"); + + ctime = FINDFIRST(cpoint, KaxCueTime); + if (ctime == NULL) { + cpoint = FINDNEXT(cues, KaxCuePoint, cpoint); + continue; + } + + timecode = uint64(*ctime) * tc_scale / 1000000 - mkv_d->first_tc; + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue time: %.3fs\n", + (float)timecode / 1000.0); + + ctrackpos = FINDFIRST(cpoint, KaxCueTrackPositions); + + while (ctrackpos != NULL) { + ctrack = FINDFIRST(ctrackpos, KaxCueTrack); + + if (ctrack == NULL) { + ctrackpos = FINDNEXT(cpoint, KaxCueTrackPositions, ctrackpos); + continue; + } + + tnum = uint32(*ctrack); + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue track: %u\n", tnum); + + ccpos = FINDFIRST(ctrackpos, KaxCueClusterPosition); + if (ccpos == NULL) { + ctrackpos = FINDNEXT(cpoint, KaxCueTrackPositions, ctrackpos); + continue; + } + + filepos = mkv_d->segment->GetGlobalPosition(uint64_t(*ccpos)); + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] | + found cue cluster " + "position: %llu\n", filepos); + + add_index_entry(mkv_d, tnum, filepos, timecode, 1); + + ctrackpos = FINDNEXT(cpoint, KaxCueTrackPositions, ctrackpos); + } + + cpoint = FINDNEXT(cues, KaxCuePoint, cpoint); + } + + delete cues; + + // Debug: dump the index + for (i = 0; i < mkv_d->num_indexes; i++) { + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] Index for track %u contains %u " + "entries.\n", mkv_d->index[i].tnum, mkv_d->index[i].num_entries); + for (k = 0; k < mkv_d->index[i].num_entries; k++) { + entry = &mkv_d->index[i].entries[k]; + mp_msg(MSGT_DEMUX, MSGL_DBG2, "[mkv] %d: timecode %llu, filepos %llu, " + "is key: %s\n", k, entry->timecode, entry->filepos, + entry->is_key ? "yes" : "no"); + } + } + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing cues ] -----------\n"); + + mkv_d->cues_found = 1; +} + +static void parse_chapters(mkv_demuxer_t *mkv_d, uint64_t pos) { + EbmlElement *l2 = NULL; + EbmlStream *es; + KaxChapters *kchapters; + KaxEditionEntry *keentry; + KaxChapterAtom *kcatom; + KaxChapterTimeStart *kctstart; + KaxChapterTimeEnd *kctend; + int upper_lvl_el, i, k; + mkv_chapter_t chapter; + + if (mkv_d->chapters != NULL) + return; + + es = mkv_d->es; + upper_lvl_el = 0; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing chapters ] ---------\n"); + + mkv_d->in->setFilePointer(pos); + + kchapters = + (KaxChapters *)es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + if (kchapters == NULL) + return; + + if (!(EbmlId(*kchapters) == KaxChapters::ClassInfos.GlobalId)) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No KaxChapters element found but %s.\n" + "[mkv] \\---- [ parsing chapters ] ---------\n", + kchapters->Generic().DebugName); + + return; + } + + mkv_d->chapters = new vector; + kchapters->Read(*es, KaxChapters::ClassInfos.Context, upper_lvl_el, l2, + true); + + for (i = 0; i < (int)kchapters->ListSize(); i++) { + keentry = (KaxEditionEntry *)(*kchapters)[i]; + if (EbmlId(*keentry) == KaxEditionEntry::ClassInfos.GlobalId) { + for (k = 0; k < (int)keentry->ListSize(); k++) { + kcatom = (KaxChapterAtom *)(*keentry)[k]; + if (EbmlId(*kcatom) == KaxChapterAtom::ClassInfos.GlobalId) { + chapter.start = 0; + chapter.end = 0; + kctstart = FINDFIRST(kcatom, KaxChapterTimeStart); + if (kctstart != NULL) + chapter.start = uint64(*kctstart) / 1000000; + kctend = FINDFIRST(kcatom, KaxChapterTimeEnd); + if (kctend != NULL) + chapter.end = uint64(*kctend) / 1000000; + mkv_d->chapters->push_back(chapter); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Chapter %u from %02d:%02d:%02d." + "%03d to %02d:%02d:%02d.%03d\n", mkv_d->chapters->size(), + (int)(chapter.start / 60 / 60 / 1000), + (int)((chapter.start / 60 / 1000) % 60), + (int)((chapter.start / 1000) % 60), + (int)(chapter.start % 1000), + (int)(chapter.end / 60 / 60 / 1000), + (int)((chapter.end / 60 / 1000) % 60), + (int)((chapter.end / 1000) % 60), + (int)(chapter.end % 1000)); + } + } + } + } + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing chapters ] ---------\n"); + delete kchapters; +} + +static void parse_seekhead(mkv_demuxer_t *mkv_d, uint64_t pos) { + EbmlElement *l2 = NULL; + EbmlStream *es; + KaxSeekHead *kseekhead; + KaxSeek *kseek; + KaxSeekID *ksid; + KaxSeekPosition *kspos; + int upper_lvl_el, i, k, s; + uint64_t seek_pos; + EbmlId *id; + EbmlElement *e; + binary *b; + + if (find_in_vector(*mkv_d->parsed_seekheads, pos)) + return; + + mkv_d->parsed_seekheads->push_back(pos); + + es = mkv_d->es; + upper_lvl_el = 0; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing seek head ] ---------\n"); + + mkv_d->in->setFilePointer(pos); + + kseekhead = + (KaxSeekHead *)es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + if (kseekhead == NULL) + return; + + if (!(EbmlId(*kseekhead) == KaxSeekHead::ClassInfos.GlobalId)) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No KaxSeekead element found but %s.\n" + "[mkv] \\---- [ parsing seek head ] ---------\n", + kseekhead->Generic().DebugName); + + return; + } + + kseekhead->Read(*es, KaxSeekHead::ClassInfos.Context, upper_lvl_el, l2, + true); + + for (i = 0; i < (int)kseekhead->ListSize(); i++) { + kseek = (KaxSeek *)(*kseekhead)[i]; + if (!(EbmlId(*kseek) == KaxSeek::ClassInfos.GlobalId)) + continue; + + seek_pos = 0; + id = NULL; + + for (k = 0; k < (int)kseek->ListSize(); k++) { + e = (*kseek)[k]; + + if (EbmlId(*e) == KaxSeekID::ClassInfos.GlobalId) { + ksid = (KaxSeekID *)e; + + b = ksid->GetBuffer(); + s = ksid->GetSize(); + if (id != NULL) + delete id; + id = new EbmlId(b, s); + + } else if (EbmlId(*e) == KaxSeekPosition::ClassInfos.GlobalId) { + kspos = (KaxSeekPosition *)e; + seek_pos = mkv_d->segment->GetGlobalPosition(uint64(*kspos)); + + } + } + + if ((seek_pos != 0) && (id != NULL)) { + if (*id == KaxSeekHead::ClassInfos.GlobalId) + parse_seekhead(mkv_d, seek_pos); + else if (*id == KaxCues::ClassInfos.GlobalId) + parse_cues(mkv_d, seek_pos); + else if (*id == KaxChapters::ClassInfos.GlobalId) + parse_chapters(mkv_d, seek_pos); + } + + if (id != NULL) + delete id; + } + + delete kseekhead; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing seek head ] ---------\n"); +} + +#define AAC_SYNC_EXTENSION_TYPE 0x02b7 +static int aac_get_sample_rate_index(uint32_t sample_rate) { + if (92017 <= sample_rate) + return 0; + else if (75132 <= sample_rate) + return 1; + else if (55426 <= sample_rate) + return 2; + else if (46009 <= sample_rate) + return 3; + else if (37566 <= sample_rate) + return 4; + else if (27713 <= sample_rate) + return 5; + else if (23004 <= sample_rate) + return 6; + else if (18783 <= sample_rate) + return 7; + else if (13856 <= sample_rate) + return 8; + else if (11502 <= sample_rate) + return 9; + else if (9391 <= sample_rate) + return 10; + else + return 11; +} + +extern "C" void demux_mkv_seek(demuxer_t *demuxer, float rel_seek_secs, + int flags); + +extern "C" int demux_mkv_open(demuxer_t *demuxer) { + unsigned char signature[4]; + stream_t *s; + demux_packet_t *dp; + mkv_demuxer_t *mkv_d; + int upper_lvl_el, exit_loop, i, vid, sid, aid; + // Elements for different levels + EbmlElement *l0 = NULL, *l1 = NULL, *l2 = NULL; + EbmlStream *es; + mkv_track_t *track; + sh_audio_t *sh_a; + sh_video_t *sh_v; + vector seekheads_to_parse; + vector cues_to_parse; + int64_t current_pos; + qt_image_description_t *idesc; + +#ifdef USE_ICONV + subcp_open(); +#endif + + s = demuxer->stream; + stream_seek(s, s->start_pos); + memset(signature, 0, 4); + stream_read(s, (char *)signature, 4); + if ((signature[0] != 0x1A) || (signature[1] != 0x45) || + (signature[2] != 0xDF) || (signature[3] != 0xA3)) + return 0; + stream_seek(s, s->start_pos); + + try { + // structure for storing the demuxer's private data + mkv_d = (mkv_demuxer_t *)safemalloc(sizeof(mkv_demuxer_t)); + memset(mkv_d, 0, sizeof(mkv_demuxer_t)); + mkv_d->duration = -1.0; + + // Create the interface between MPlayer's IO system and + // libmatroska's IO system. + mkv_d->in = new mpstream_io_callback(demuxer->stream); + if (mkv_d->in == NULL) { + free_mkv_demuxer(mkv_d); + return 0; + } + mpstream_io_callback &io = *static_cast(mkv_d->in); + mkv_d->es = new EbmlStream(io); + if (mkv_d->es == NULL) { + free_mkv_demuxer(mkv_d); + return 0; + } + es = mkv_d->es; + + // Find the EbmlHead element. Must be the first one. + l0 = es->FindNextID(EbmlHead::ClassInfos, 0xFFFFFFFFFFFFFFFFULL); + if (l0 == NULL) { + mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] no head found\n"); + free_mkv_demuxer(mkv_d); + return 0; + } + // Don't verify its data for now. + l0->SkipData(static_cast(*es), l0->Generic().Context); + delete l0; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Found the head...\n"); + + // Next element must be a segment + l0 = es->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFFFFFFFFFULL); + if (l0 == NULL) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] but no segment :(\n"); + free_mkv_demuxer(mkv_d); + return 0; + } + if (!(EbmlId(*l0) == KaxSegment::ClassInfos.GlobalId)) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] but no segment :(\n"); + free_mkv_demuxer(mkv_d); + return 0; + } + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] + a segment...\n"); + + mkv_d->segment = (KaxSegment *)l0; + mkv_d->tc_scale = MKVD_TIMECODESCALE; + mkv_d->parsed_seekheads = new vector; + mkv_d->parsed_cues = new vector; + + vid = 0; + aid = 0; + sid = 0; + + upper_lvl_el = 0; + exit_loop = 0; + // We've got our segment, so let's find the tracks + l1 = es->FindNextElement(l0->Generic().Context, upper_lvl_el, 0xFFFFFFFFL, + true, 1); + while ((l1 != NULL) && (upper_lvl_el <= 0)) { + + if (EbmlId(*l1) == KaxInfo::ClassInfos.GlobalId) { + // General info about this Matroska file + KaxTimecodeScale *ktc_scale; + KaxDuration *kduration; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ segment information...\n"); + + l1->Read(*es, KaxInfo::ClassInfos.Context, upper_lvl_el, l2, true); + + ktc_scale = FINDFIRST(l1, KaxTimecodeScale); + if (ktc_scale != NULL) { + mkv_d->tc_scale = uint64(*ktc_scale); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + timecode scale: %llu\n", + mkv_d->tc_scale); + } else + mkv_d->tc_scale = MKVD_TIMECODESCALE; + + kduration = FINDFIRST(l1, KaxDuration); + if (kduration != NULL) { + mkv_d->duration = float(*kduration) * mkv_d->tc_scale / 1000000000.0; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + duration: %.3fs\n", + mkv_d->duration); + } + + l1->SkipData(*es, l1->Generic().Context); + + } else if (EbmlId(*l1) == KaxTracks::ClassInfos.GlobalId) { + // Yep, we've found our KaxTracks element. Now find all tracks + // contained in this segment. + + KaxTrackEntry *ktentry; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ segment tracks...\n"); + + l1->Read(*es, KaxTracks::ClassInfos.Context, upper_lvl_el, l2, true); + + ktentry = FINDFIRST(l1, KaxTrackEntry); + while (ktentry != NULL) { + // We actually found a track entry :) We're happy now. + + KaxTrackNumber *ktnum; + KaxTrackDefaultDuration *kdefdur; + KaxTrackType *kttype; + KaxTrackAudio *ktaudio; + KaxTrackVideo *ktvideo; + KaxCodecID *kcodecid; + KaxCodecPrivate *kcodecpriv; + KaxTrackFlagDefault *ktfdefault; + KaxTrackLanguage *ktlanguage; +#if LIBMATROSKA_VERSION >= 000503 + KaxContentEncodings *kcencodings; + int kcenc_idx; + vector::iterator ce_ins_it; +#endif + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + a track...\n"); + + track = new_mkv_track(mkv_d); + if (track == NULL) + return 0; + + ktnum = FINDFIRST(ktentry, KaxTrackNumber); + if (ktnum != NULL) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Track number: %u\n", + uint32(*ktnum)); + track->tnum = uint32(*ktnum); + if (find_duplicate_track_by_num(mkv_d, track->tnum, track) != NULL) + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] | + WARNING: There's " + "more than one track with the number %u.\n", + track->tnum); + } + + kdefdur = FINDFIRST(ktentry, KaxTrackDefaultDuration); + if (kdefdur != NULL) { + if (uint64(*kdefdur) == 0) + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Default duration: 0"); + else { + track->v_frate = 1000000000.0 / (float)uint64(*kdefdur); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Default duration: " + "%.3fms ( = %.3f fps)\n", + (float)uint64(*kdefdur) / 1000000.0, track->v_frate); + } + track->default_duration = (float)uint64(*kdefdur) / 1000000000.0; + } + + kttype = FINDFIRST(ktentry, KaxTrackType); + if (kttype != NULL) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Track type: "); + + switch (uint8(*kttype)) { + case track_audio: + mp_msg(MSGT_DEMUX, MSGL_V, "Audio\n"); + track->type = 'a'; + track->xid = aid; + aid++; + break; + case track_video: + mp_msg(MSGT_DEMUX, MSGL_V, "Video\n"); + track->type = 'v'; + track->xid = vid; + vid++; + break; + case track_subtitle: + mp_msg(MSGT_DEMUX, MSGL_V, "Subtitle\n"); + track->type = 's'; + track->xid = sid; + sid++; + break; + default: + mp_msg(MSGT_DEMUX, MSGL_V, "unknown\n"); + track->type = '?'; + break; + } + } + + ktaudio = FINDFIRST(ktentry, KaxTrackAudio); + if (ktaudio != NULL) { + KaxAudioSamplingFreq *ka_sfreq; + KaxAudioChannels *ka_channels; + KaxAudioBitDepth *ka_bitdepth; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Audio track\n"); + + ka_sfreq = FINDFIRST(ktaudio, KaxAudioSamplingFreq); + if (ka_sfreq != NULL) { + track->a_sfreq = float(*ka_sfreq); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Sampling " + "frequency: %f\n", track->a_sfreq); + } else + track->a_sfreq = 8000.0; + + ka_channels = FINDFIRST(ktaudio, KaxAudioChannels); + if (ka_channels != NULL) { + track->a_channels = uint8(*ka_channels); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Channels: %u\n", + track->a_channels); + } else + track->a_channels = 1; + + ka_bitdepth = FINDFIRST(ktaudio, KaxAudioBitDepth); + if (ka_bitdepth != NULL) { + track->a_bps = uint8(*ka_bitdepth); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Bit depth: %u\n", + track->a_bps); + } + + } + + ktvideo = FINDFIRST(ktentry, KaxTrackVideo); + if (ktvideo != NULL) { + KaxVideoPixelWidth *kv_pwidth; + KaxVideoPixelHeight *kv_pheight; + KaxVideoDisplayWidth *kv_dwidth; + KaxVideoDisplayHeight *kv_dheight; + KaxVideoFrameRate *kv_frate; + + kv_pwidth = FINDFIRST(ktvideo, KaxVideoPixelWidth); + if (kv_pwidth != NULL) { + track->v_width = uint16(*kv_pwidth); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Pixel width: %u\n", + track->v_width); + } + + kv_pheight = FINDFIRST(ktvideo, KaxVideoPixelHeight); + if (kv_pheight != NULL) { + track->v_height = uint16(*kv_pheight); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Pixel height: %u\n", + track->v_height); + } + + kv_dwidth = FINDFIRST(ktvideo, KaxVideoDisplayWidth); + if (kv_dwidth != NULL) { + track->v_dwidth = uint16(*kv_dwidth); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Display width: %u\n", + track->v_dwidth); + } + + kv_dheight = FINDFIRST(ktvideo, KaxVideoDisplayHeight); + if (kv_dheight != NULL) { + track->v_dheight = uint16(*kv_dheight); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Display height: %u\n", + track->v_dheight); + } + + // For older files. + kv_frate = FINDFIRST(ktvideo, KaxVideoFrameRate); + if (kv_frate != NULL) { + track->v_frate = float(*kv_frate); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Frame rate: %f\n", + track->v_frate); + } + + } + + kcodecid = FINDFIRST(ktentry, KaxCodecID); + if (kcodecid != NULL) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Codec ID: %s\n", + string(*kcodecid).c_str()); + track->codec_id = strdup(string(*kcodecid).c_str()); + } + + kcodecpriv = FINDFIRST(ktentry, KaxCodecPrivate); + if (kcodecpriv != NULL) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + CodecPrivate, length " + "%llu\n", kcodecpriv->GetSize()); + track->private_size = kcodecpriv->GetSize(); + if (track->private_size > 0) + track->private_data = safememdup(kcodecpriv->GetBuffer(), + track->private_size); + } + + ktfdefault = FINDFIRST(ktentry, KaxTrackFlagDefault); + if (ktfdefault != NULL) { + track->default_track = uint32(*ktfdefault); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Default flag: %u\n", + track->default_track); + } + + ktlanguage = FINDFIRST(ktentry, KaxTrackLanguage); + if (ktlanguage != NULL) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] | + Language: %s\n", + string(*ktlanguage).c_str()); + if (track->language != NULL) + free(track->language); + track->language = strdup(string(*ktlanguage).c_str()); + } + +#if LIBMATROSKA_VERSION >= 000503 + kcencodings = FINDFIRST(ktentry, KaxContentEncodings); + if (kcencodings != NULL) { + for (kcenc_idx = 0; kcenc_idx < (int)kcencodings->ListSize(); + kcenc_idx++) { + EbmlElement *l3; + + l3 = (*kcencodings)[kcenc_idx]; + if (EbmlId(*l3) == KaxContentEncoding::ClassInfos.GlobalId) { + KaxContentEncoding *kcenc; + KaxContentEncodingOrder *ce_order; + KaxContentEncodingType *ce_type; + KaxContentEncodingScope *ce_scope; + KaxContentCompression *ce_comp; + KaxContentEncryption *ce_enc; + mkv_content_encoding_t enc; + + memset(&enc, 0, sizeof(mkv_content_encoding_t)); + kcenc = static_cast(l3); + + ce_order = FINDFIRST(kcenc, KaxContentEncodingOrder); + if (ce_order != NULL) + enc.order = uint32(*ce_order); + + ce_type = FINDFIRST(kcenc, KaxContentEncodingType); + if (ce_type != NULL) + enc.type = uint32(*ce_type); + + ce_scope = FINDFIRST(kcenc, KaxContentEncodingScope); + if (ce_scope != NULL) + enc.scope = uint32(*ce_scope); + else + enc.scope = 1; + + ce_comp = FINDFIRST(kcenc, KaxContentCompression); + if (ce_comp != NULL) { + KaxContentCompAlgo *cc_algo; + KaxContentCompSettings *cc_settings; + + cc_algo = FINDFIRST(ce_comp, KaxContentCompAlgo); + if (cc_algo != NULL) + enc.comp_algo = uint32(*cc_algo); + + cc_settings = FINDFIRST(ce_comp, KaxContentCompSettings); + if (cc_settings != NULL) { + enc.comp_settings = + (unsigned char *)safememdup(&binary(*cc_settings), + cc_settings->GetSize()); + enc.comp_settings_len = cc_settings->GetSize(); + } + } + + ce_enc = FINDFIRST(kcenc, KaxContentEncryption); + if (ce_enc != NULL) { + KaxContentEncAlgo *ce_ealgo; + KaxContentEncKeyID *ce_ekeyid; + KaxContentSigAlgo *ce_salgo; + KaxContentSigHashAlgo *ce_shalgo; + KaxContentSigKeyID *ce_skeyid; + KaxContentSignature *ce_signature; + + ce_ealgo = FINDFIRST(ce_enc, KaxContentEncAlgo); + if (ce_ealgo != NULL) + enc.enc_algo = uint32(*ce_ealgo); + + ce_ekeyid = FINDFIRST(ce_enc, KaxContentEncKeyID); + if (ce_ekeyid != NULL) { + enc.enc_keyid = + (unsigned char *)safememdup(&binary(*ce_ekeyid), + ce_ekeyid->GetSize()); + enc.enc_keyid_len = ce_ekeyid->GetSize(); + } + + ce_salgo = FINDFIRST(ce_enc, KaxContentSigAlgo); + if (ce_salgo != NULL) + enc.enc_algo = uint32(*ce_salgo); + + ce_shalgo = FINDFIRST(ce_enc, KaxContentSigHashAlgo); + if (ce_shalgo != NULL) + enc.enc_algo = uint32(*ce_shalgo); + + ce_skeyid = FINDFIRST(ce_enc, KaxContentSigKeyID); + if (ce_skeyid != NULL) { + enc.sig_keyid = + (unsigned char *)safememdup(&binary(*ce_skeyid), + ce_skeyid->GetSize()); + enc.sig_keyid_len = ce_skeyid->GetSize(); + } + + ce_signature = FINDFIRST(ce_enc, KaxContentSignature); + if (ce_signature != NULL) { + enc.signature = + (unsigned char *)safememdup(&binary(*ce_signature), + ce_signature->GetSize()); + enc.signature_len = ce_signature->GetSize(); + } + + } + + ce_ins_it = track->c_encodings->begin(); + while ((ce_ins_it != track->c_encodings->end()) && + (enc.order <= (*ce_ins_it).order)) + ce_ins_it++; + track->c_encodings->insert(ce_ins_it, enc); + } + } + } + +#endif + ktentry = FINDNEXT(l1, KaxTrackEntry, ktentry); + } // while (ktentry != NULL) + + l1->SkipData(*es, l1->Generic().Context); + + } else if (EbmlId(*l1) == KaxSeekHead::ClassInfos.GlobalId) { + if (!find_in_vector(seekheads_to_parse, l1->GetElementPosition())) + seekheads_to_parse.push_back(l1->GetElementPosition()); + l1->SkipData(*es, l1->Generic().Context); + + } else if ((EbmlId(*l1) == KaxCues::ClassInfos.GlobalId) && + !mkv_d->cues_found) { + if (!find_in_vector(cues_to_parse, l1->GetElementPosition())) + cues_to_parse.push_back(l1->GetElementPosition()); + l1->SkipData(*es, l1->Generic().Context); + + } else if (EbmlId(*l1) == KaxChapters::ClassInfos.GlobalId) { + parse_chapters(mkv_d, l1->GetElementPosition()); + l1->SkipData(*es, l1->Generic().Context); + + } else if (EbmlId(*l1) == KaxCluster::ClassInfos.GlobalId) { + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] |+ found cluster, headers are " + "parsed completely :)\n"); + add_cluster_position(mkv_d, l1->GetElementPosition()); + mkv_d->saved_l1 = l1; + exit_loop = 1; + + } else + l1->SkipData(*es, l1->Generic().Context); + + if (!in_parent(l0)) { + delete l1; + break; + } + + if (upper_lvl_el > 0) { + upper_lvl_el--; + if (upper_lvl_el > 0) + break; + delete l1; + l1 = l2; + continue; + + } else if (upper_lvl_el < 0) { + upper_lvl_el++; + if (upper_lvl_el < 0) + break; + + } + + if (exit_loop) // we've found the first cluster, so get out + break; + + l1->SkipData(*es, l1->Generic().Context); + delete l1; + l1 = es->FindNextElement(l0->Generic().Context, upper_lvl_el, + 0xFFFFFFFFL, true); + + } // while (l1 != NULL) + + if (!exit_loop) { + free_mkv_demuxer(mkv_d); + return 0; + } + + current_pos = io.getFilePointer(); + + // Try to find the very first timecode (cluster timecode). + l2 = es->FindNextElement(l1->Generic().Context, upper_lvl_el, + 0xFFFFFFFFL, true, 1); + if ((l2 != NULL) && !upper_lvl_el && + (EbmlId(*l2) == KaxClusterTimecode::ClassInfos.GlobalId)) { + KaxClusterTimecode &ctc = *static_cast(l2); + ctc.ReadData(es->I_O()); + mkv_d->first_tc = uint64(ctc) * mkv_d->tc_scale / 1000000; + delete l2; + } else + mkv_d->first_tc = 0; + + // Parse all cues and seek heads + for (i = 0; i < (int)cues_to_parse.size(); i++) + parse_cues(mkv_d, cues_to_parse[i]); + for (i = 0; i < (int)seekheads_to_parse.size(); i++) + parse_seekhead(mkv_d, seekheads_to_parse[i]); + + io.setFilePointer(current_pos); + + } catch (exception &ex) { + mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] caught exception\n"); + return 0; + } + + if (!check_track_information(mkv_d)) { + free_mkv_demuxer(mkv_d); + return 0; + } + + track = NULL; + if (demuxer->video->id == -1) { // Automatically select a video track. + // Search for a video track that has the 'default' flag set. + for (i = 0; i < mkv_d->num_tracks; i++) + if ((mkv_d->tracks[i]->type == 'v') && mkv_d->tracks[i]->ok && + mkv_d->tracks[i]->default_track) { + track = mkv_d->tracks[i]; + break; + } + + if (track == NULL) + // No track has the 'default' flag set - let's take the first video + // track. + for (i = 0; i < mkv_d->num_tracks; i++) + if ((mkv_d->tracks[i]->type == 'v') && mkv_d->tracks[i]->ok) { + track = mkv_d->tracks[i]; + break; + } + } else if (demuxer->video->id != -2) // -2 = no video at all + track = find_track_by_num(mkv_d, demuxer->video->id, 'v'); + + if (track) { + BITMAPINFOHEADER *bih; + + idesc = NULL; + + if (track->ms_compat) { // MS compatibility mode + BITMAPINFOHEADER *src; + src = (BITMAPINFOHEADER *)track->private_data; + bih = (BITMAPINFOHEADER *)safemalloc(track->private_size); + memset(bih, 0, track->private_size); + bih->biSize = get_uint32(&src->biSize); + bih->biWidth = get_uint32(&src->biWidth); + bih->biHeight = get_uint32(&src->biHeight); + bih->biPlanes = get_uint16(&src->biPlanes); + bih->biBitCount = get_uint16(&src->biBitCount); + bih->biCompression = get_uint32(&src->biCompression); + bih->biSizeImage = get_uint32(&src->biSizeImage); + bih->biXPelsPerMeter = get_uint32(&src->biXPelsPerMeter); + bih->biYPelsPerMeter = get_uint32(&src->biYPelsPerMeter); + bih->biClrUsed = get_uint32(&src->biClrUsed); + bih->biClrImportant = get_uint32(&src->biClrImportant); + memcpy((char *)bih + sizeof(BITMAPINFOHEADER), + (char *)src + sizeof(BITMAPINFOHEADER), + track->private_size - sizeof(BITMAPINFOHEADER)); + + } else { + bih = (BITMAPINFOHEADER *)safemalloc(sizeof(BITMAPINFOHEADER)); + memset(bih, 0, sizeof(BITMAPINFOHEADER)); + bih->biSize = sizeof(BITMAPINFOHEADER); + bih->biWidth = track->v_width; + bih->biHeight = track->v_height; + bih->biBitCount = 24; + bih->biSizeImage = bih->biWidth * bih->biHeight * bih->biBitCount / 8; + + if ((track->private_size >= sizeof(real_video_props_t)) && + (!strcmp(track->codec_id, MKV_V_REALV10) || + !strcmp(track->codec_id, MKV_V_REALV20) || + !strcmp(track->codec_id, MKV_V_REALV30) || + !strcmp(track->codec_id, MKV_V_REALV40))) { + unsigned char *dst, *src; + real_video_props_t *rvp; + uint32_t type2; + + rvp = (real_video_props_t *)track->private_data; + src = (unsigned char *)(rvp + 1); + + bih = (BITMAPINFOHEADER *)realloc(bih, sizeof(BITMAPINFOHEADER) + 12); + bih->biSize = 48; + bih->biPlanes = 1; + type2 = get_uint32_be(&rvp->type2); + if ((type2 == 0x10003000) || (type2 == 0x10003001)) + bih->biCompression = mmioFOURCC('R', 'V', '1', '3'); + else + bih->biCompression = mmioFOURCC('R', 'V', track->codec_id[9], '0'); + dst = (unsigned char *)(bih + 1); + ((unsigned int *)dst)[0] = get_uint32_be(&rvp->type1); + ((unsigned int *)dst)[1] = type2; + + if ((bih->biCompression <= 0x30335652) && + (type2 >= 0x20200002)) { + // read secondary WxH for the cmsg24[] (see vd_realvid.c) + ((unsigned short *)(bih + 1))[4] = 4 * (unsigned short)src[0]; + ((unsigned short *)(bih + 1))[5] = 4 * (unsigned short)src[1]; + } else + memset(&dst[8], 0, 4); + track->realmedia = true; + +#if defined(USE_QTX_CODECS) + } else if ((track->private_size >= sizeof(qt_image_description_t)) && + (!strcmp(track->codec_id, MKV_V_QUICKTIME))) { + idesc = (qt_image_description_t *)track->private_data; + idesc->id_size = get_uint32_be(&idesc->id_size); + idesc->codec_type = get_uint32(&idesc->codec_type); + idesc->version = get_uint16_be(&idesc->version); + idesc->revision = get_uint16_be(&idesc->revision); + idesc->vendor = get_uint32_be(&idesc->vendor); + idesc->temporal_quality = get_uint32_be(&idesc->temporal_quality); + idesc->spatial_quality = get_uint32_be(&idesc->spatial_quality); + idesc->width = get_uint16_be(&idesc->width); + idesc->height = get_uint16_be(&idesc->height); + idesc->horizontal_resolution = + get_uint32_be(&idesc->horizontal_resolution); + idesc->vertical_resolution = + get_uint32_be(&idesc->vertical_resolution); + idesc->data_size = get_uint32_be(&idesc->data_size); + idesc->frame_count = get_uint16_be(&idesc->frame_count); + idesc->depth = get_uint16_be(&idesc->depth); + idesc->color_table_id = get_uint16_be(&idesc->color_table_id); + bih->biPlanes = 1; + bih->biCompression = idesc->codec_type; +#endif // defined(USE_QTX_CODECS) + + } else { + mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown/unsupported CodecID " + "(%s) or missing/bad CodecPrivate data (track %u).\n", + track->codec_id, track->tnum); + demuxer->video->id = -2; + } + } + + if (demuxer->video->id != -2) { + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will play video track %u\n", + track->tnum); + + sh_v = new_sh_video(demuxer, track->tnum); + sh_v->bih = bih; + sh_v->format = sh_v->bih->biCompression; + if (track->v_frate == 0.0) + track->v_frate = 25.0; + sh_v->fps = track->v_frate; + sh_v->frametime = 1 / track->v_frate; + if (!track->realmedia) { + sh_v->disp_w = track->v_width; + sh_v->disp_h = track->v_height; + sh_v->aspect = (float)track->v_dwidth / (float)track->v_dheight; + } else { + // vd_realvid.c will set aspect to disp_w/disp_h and rederive + // disp_w and disp_h from the RealVideo stream contents returned + // by the Real DLLs. If DisplayWidth/DisplayHeight was not set in + // the Matroska file then it has already been set to PixelWidth/Height + // by check_track_information. + sh_v->disp_w = track->v_dwidth; + sh_v->disp_h = track->v_dheight; + } + if (idesc != NULL) + sh_v->ImageDesc = idesc; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Aspect: %f\n", sh_v->aspect); + + demuxer->video->id = track->tnum; + demuxer->video->sh = sh_v; + sh_v->ds = demuxer->video; + + mkv_d->video = track; + } else + free(bih); + + } else { + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] No video track found/wanted.\n"); + demuxer->video->id = -2; + } + + track = NULL; + if (demuxer->audio->id == -1) { // Automatically select an audio track. + // check if the user specified an audio language + if (audio_lang != NULL) { + track = find_track_by_language(mkv_d, audio_lang, NULL, 'a'); + } + if (track == NULL) + // no audio language specified, or language not found + // Search for an audio track that has the 'default' flag set. + for (i = 0; i < mkv_d->num_tracks; i++) + if ((mkv_d->tracks[i]->type == 'a') && mkv_d->tracks[i]->ok && + mkv_d->tracks[i]->default_track) { + track = mkv_d->tracks[i]; + break; + } + + if (track == NULL) + // No track has the 'default' flag set - let's take the first audio + // track. + for (i = 0; i < mkv_d->num_tracks; i++) + if ((mkv_d->tracks[i]->type == 'a') && mkv_d->tracks[i]->ok) { + track = mkv_d->tracks[i]; + break; + } + } else if (demuxer->audio->id != -2) // -2 = no audio at all + track = find_track_by_num(mkv_d, demuxer->audio->id, 'a'); + + if (track) { + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will play audio track %u\n", + track->tnum); + sh_a = new_sh_audio(demuxer, track->tnum); + + demuxer->audio->id = track->tnum; + demuxer->audio->sh = sh_a; + sh_a->ds = demuxer->audio; + + mkv_d->audio = track; + + if (track->ms_compat) + sh_a->wf = (WAVEFORMATEX *)safememdup(track->private_data, + track->private_size); + else { + sh_a->wf = (WAVEFORMATEX *)safemalloc(sizeof(WAVEFORMATEX)); + memset(sh_a->wf, 0, sizeof(WAVEFORMATEX)); + } + sh_a->format = track->a_formattag; + sh_a->wf->wFormatTag = track->a_formattag; + sh_a->channels = track->a_channels; + sh_a->wf->nChannels = track->a_channels; + sh_a->samplerate = (uint32_t)track->a_sfreq; + sh_a->wf->nSamplesPerSec = (uint32_t)track->a_sfreq; + sh_a->samplesize = track->a_bps / 8; + if (!strcmp(track->codec_id, MKV_A_MP3) || + !strcmp(track->codec_id, MKV_A_MP2)) { + sh_a->wf->nAvgBytesPerSec = 16000; + sh_a->wf->nBlockAlign = 1152; + sh_a->wf->wBitsPerSample = 0; + sh_a->samplesize = 0; + + } else if (!strncmp(track->codec_id, MKV_A_AC3, strlen(MKV_A_AC3))) { + sh_a->wf->nAvgBytesPerSec = 16000; + sh_a->wf->nBlockAlign = 1536; + sh_a->wf->wBitsPerSample = 0; + sh_a->samplesize = 0; + + } else if (!strcmp(track->codec_id, MKV_A_PCM) || + !strcmp(track->codec_id, MKV_A_PCM_BE)) { + sh_a->wf->nAvgBytesPerSec = sh_a->channels * sh_a->samplerate * 2; + sh_a->wf->nBlockAlign = sh_a->wf->nAvgBytesPerSec; + sh_a->wf->wBitsPerSample = track->a_bps; + if (!strcmp(track->codec_id, MKV_A_PCM_BE)) + sh_a->format = mmioFOURCC('t', 'w', 'o', 's'); + + } else if (!strcmp(track->codec_id, MKV_A_QDMC) || + !strcmp(track->codec_id, MKV_A_QDMC2)) { + sh_a->wf->wBitsPerSample = track->a_bps; + sh_a->wf->nAvgBytesPerSec = 16000; + sh_a->wf->nBlockAlign = 1486; + track->fix_i_bps = true; + track->qt_last_a_pts = 0.0; + if (track->private_data != NULL) { + sh_a->codecdata = (unsigned char *)safememdup(track->private_data, + track->private_size); + sh_a->codecdata_len = track->private_size; + } + if (!strcmp(track->codec_id, MKV_A_QDMC)) + sh_a->format = mmioFOURCC('Q', 'D', 'M', 'C'); + else + sh_a->format = mmioFOURCC('Q', 'D', 'M', '2'); + + } else if (track->a_formattag == mmioFOURCC('M', 'P', '4', 'A')) { + int profile, srate_idx; + + sh_a->wf->nAvgBytesPerSec = 16000; + sh_a->wf->nBlockAlign = 1024; + sh_a->wf->wBitsPerSample = 0; + sh_a->samplesize = 0; + + // Recreate the 'private data' which faad2 uses in its initialization. + srate_idx = aac_get_sample_rate_index(sh_a->samplerate); + if (!strncmp(&track->codec_id[12], "MAIN", 4)) + profile = 0; + else if (!strncmp(&track->codec_id[12], "LC", 2)) + profile = 1; + else if (!strncmp(&track->codec_id[12], "SSR", 3)) + profile = 2; + else + profile = 3; + sh_a->codecdata = (unsigned char *)safemalloc(5); + sh_a->codecdata[0] = ((profile + 1) << 3) | ((srate_idx & 0xe) >> 1); + sh_a->codecdata[1] = ((srate_idx & 0x1) << 7) | + (track->a_channels << 3); + + if (strstr(track->codec_id, "SBR") != NULL) { + // HE-AAC (aka SBR AAC) + sh_a->codecdata_len = 5; + + sh_a->samplerate *= 2; + sh_a->wf->nSamplesPerSec *= 2; + srate_idx = aac_get_sample_rate_index(sh_a->samplerate); + sh_a->codecdata[2] = AAC_SYNC_EXTENSION_TYPE >> 3; + sh_a->codecdata[3] = ((AAC_SYNC_EXTENSION_TYPE & 0x07) << 5) | 5; + sh_a->codecdata[4] = (1 << 7) | (srate_idx << 3); + track->default_duration = 1024.0 / (float)(sh_a->samplerate / 2); + + } else { + sh_a->codecdata_len = 2; + track->default_duration = 1024.0 / (float)sh_a->samplerate; + } + + } else if (!strcmp(track->codec_id, MKV_A_VORBIS)) { + for (i = 0; i < 3; i++) { + dp = new_demux_packet(track->header_sizes[i]); + memcpy(dp->buffer, track->headers[i], track->header_sizes[i]); + dp->pts = 0; + dp->flags = 0; + ds_add_packet(demuxer->audio, dp); + } + + } else if ((track->private_size >= sizeof(real_audio_v4_props_t)) && + !strncmp(track->codec_id, MKV_A_REALATRC, 7)) { + // Common initialization for all RealAudio codecs + real_audio_v4_props_t *ra4p; + real_audio_v5_props_t *ra5p; + unsigned char *src; + int codecdata_length, version; + + ra4p = (real_audio_v4_props_t *)track->private_data; + ra5p = (real_audio_v5_props_t *)track->private_data; + + sh_a->wf->wBitsPerSample = sh_a->samplesize * 8; + sh_a->wf->nAvgBytesPerSec = 0; // FIXME !? + sh_a->wf->nBlockAlign = get_uint16_be(&ra4p->frame_size); + + version = get_uint16_be(&ra4p->version1); + + if (version == 4) { + src = (unsigned char *)(ra4p + 1); + src += src[0] + 1; + src += src[0] + 1; + } else + src = (unsigned char *)(ra5p + 1); + + src += 3; + if (version == 5) + src++; + codecdata_length = get_uint32_be(src); + src += 4; + sh_a->wf->cbSize = 10 + codecdata_length; + sh_a->wf = (WAVEFORMATEX *)realloc(sh_a->wf, sizeof(WAVEFORMATEX) + + sh_a->wf->cbSize); + ((short *)(sh_a->wf + 1))[0] = get_uint16_be(&ra4p->sub_packet_size); + ((short *)(sh_a->wf + 1))[1] = get_uint16_be(&ra4p->sub_packet_h); + ((short *)(sh_a->wf + 1))[2] = get_uint16_be(&ra4p->flavor); + ((short *)(sh_a->wf + 1))[3] = get_uint32_be(&ra4p->coded_frame_size); + ((short *)(sh_a->wf + 1))[4] = codecdata_length; + memcpy(((char *)(sh_a->wf + 1)) + 10, src, codecdata_length); + + track->realmedia = true; + + } else if (!strcmp(track->codec_id, MKV_A_FLAC) || + (track->a_formattag == 0xf1ac)) { + unsigned char *ptr; + int size; + free(sh_a->wf); + sh_a->wf = NULL; + + if (track->a_formattag == mmioFOURCC('f', 'L', 'a', 'C')) { + ptr = (unsigned char *)track->private_data; + size = track->private_size; + } else { + sh_a->format = mmioFOURCC('f', 'L', 'a', 'C'); + ptr = (unsigned char *)track->private_data + sizeof(WAVEFORMATEX); + size = track->private_size - sizeof(WAVEFORMATEX); + } + if ((size < 4) || (ptr[0] != 'f') || (ptr[1] != 'L') || + (ptr[2] != 'a') || (ptr[3] != 'C')) { + dp = new_demux_packet(4); + memcpy(dp->buffer, "fLaC", 4); + dp->pts = 0; + dp->flags = 0; + ds_add_packet(demuxer->audio, dp); + } + dp = new_demux_packet(size); + memcpy(dp->buffer, ptr, size); + dp->pts = 0; + dp->flags = 0; + ds_add_packet(demuxer->audio, dp); + } + + } else { + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] No audio track found/wanted.\n"); + demuxer->audio->id = -2; + } + + // DO NOT automatically select a subtitle track and behave like DVD + // playback: only show subtitles if the user explicitely wants them. + track = NULL; + if (demuxer->sub->id >= 0) + track = find_track_by_num(mkv_d, demuxer->sub->id, 's'); + else if (dvdsub_lang != NULL) + track = find_track_by_language(mkv_d, dvdsub_lang, NULL); + if (track) { + if (!strcmp(track->codec_id, MKV_S_VOBSUB)) { + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will display subtitle track %u\n", + track->tnum); + mkv_d->subs_track = track; + mkv_d->subtitle_type = MKV_SUBTYPE_VOBSUB; + demuxer->sub->sh = (mkv_sh_sub_t *)safememdup(&track->sh_sub, + sizeof(mkv_sh_sub_t)); + demuxer->sub->id = track->xid; + + } else if (strcmp(track->codec_id, MKV_S_TEXTASCII) && + strcmp(track->codec_id, MKV_S_TEXTUTF8) && + strcmp(track->codec_id, MKV_S_TEXTSSA) && + strcmp(track->codec_id, "S_SSA") && + strcmp(track->codec_id, "S_ASS") && + strcmp(track->codec_id, "S_TEXT/ASS")) + mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] Subtitle type '%s' is not " + "supported. Track will not be displayed.\n", track->codec_id); + else { + mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Will display subtitle track %u\n", + track->tnum); + mkv_d->subs_track = track; + if (!mkv_d->subs.text[0]) { + for (i = 0; i <= SUB_MAX_TEXT; i++) + mkv_d->subs.text[i] = (char *)safemalloc(256); + + if (!strcmp(track->codec_id, MKV_S_TEXTUTF8)) + sub_utf8 = 1; // Force UTF-8 conversion. + if (!strcmp(track->codec_id, MKV_S_TEXTSSA) || + !strcmp(track->codec_id, "S_SSA") || + !strcmp(track->codec_id, "S_ASS") || + !strcmp(track->codec_id, "S_TEXT/ASS")) { + mkv_d->subtitle_type = MKV_SUBTYPE_SSA; + sub_utf8 = 1; + } else + mkv_d->subtitle_type = MKV_SUBTYPE_TEXT; + } else + mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] File does not contain a " + "subtitle track with the id %u.\n", demuxer->sub->id); + demuxer->sub->sh = NULL; + } + } + + demuxer->priv = mkv_d; + + if (mkv_d->chapters != NULL) { + for (i = 0; i < (int)mkv_d->chapters->size(); i++) { + (*mkv_d->chapters)[i].start -= mkv_d->first_tc; + (*mkv_d->chapters)[i].end -= mkv_d->first_tc; + } + if ((dvd_last_chapter > 0) && + (dvd_last_chapter <= (int)mkv_d->chapters->size())) { + if ((*mkv_d->chapters)[dvd_last_chapter - 1].end != 0) + mkv_d->stop_timecode = (*mkv_d->chapters)[dvd_last_chapter - 1].end; + else if ((dvd_last_chapter + 1) <= (int)mkv_d->chapters->size()) + mkv_d->stop_timecode = (*mkv_d->chapters)[dvd_last_chapter].start; + } + } + + if (s->end_pos == 0) + demuxer->seekable = 0; + else { + demuxer->movi_start = s->start_pos; + demuxer->movi_end = s->end_pos; + demuxer->seekable = 1; + if ((dvd_chapter != 1) && (mkv_d->chapters != NULL) && + (dvd_chapter <= (int)mkv_d->chapters->size())) + demux_mkv_seek(demuxer, (float)(*mkv_d->chapters)[dvd_chapter - 1].start + / 1000.0, 1); + } + + return 1; +} + +// Taken from demux_real.c. Thanks to the original developpers :) +#define SKIP_BITS(n) buffer <<= n +#define SHOW_BITS(n) ((buffer) >> (32 - (n))) + +static float real_fix_timestamp(mkv_track_t *track, unsigned char *s, + int timestamp) { + float v_pts; + uint32_t buffer = (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]; + int kf = timestamp; + int pict_type; + int orig_kf; + + if (!strcmp(track->codec_id, MKV_V_REALV30) || + !strcmp(track->codec_id, MKV_V_REALV40)) { + + if (!strcmp(track->codec_id, MKV_V_REALV30)) { + SKIP_BITS(3); + pict_type = SHOW_BITS(2); + SKIP_BITS(2 + 7); + }else{ + SKIP_BITS(1); + pict_type = SHOW_BITS(2); + SKIP_BITS(2 + 7 + 3); + } + kf = SHOW_BITS(13); // kf= 2*SHOW_BITS(12); + orig_kf = kf; + if (pict_type <= 1) { + // I frame, sync timestamps: + track->rv_kf_base = timestamp - kf; + mp_msg(MSGT_DEMUX, MSGL_V, "\nTS: base=%08X\n", track->rv_kf_base); + kf = timestamp; + } else { + // P/B frame, merge timestamps: + int tmp = timestamp - track->rv_kf_base; + kf |= tmp & (~0x1fff); // combine with packet timestamp + if (kf < (tmp - 4096)) // workaround wrap-around problems + kf += 8192; + else if (kf > (tmp + 4096)) + kf -= 8192; + kf += track->rv_kf_base; + } + if (pict_type != 3) { // P || I frame -> swap timestamps + int tmp = kf; + kf = track->rv_kf_pts; + track->rv_kf_pts = tmp; + } + mp_msg(MSGT_DEMUX, MSGL_V, "\nTS: %08X -> %08X (%04X) %d %02X %02X %02X " + "%02X %5d\n", timestamp, kf, orig_kf, pict_type, s[0], s[1], s[2], + s[3], kf - (int)(1000.0 * track->rv_pts)); + } + v_pts = kf * 0.001f; + track->rv_pts = v_pts; + + return v_pts; +} + +static void handle_realvideo(demuxer_t *demuxer, unsigned char *data, + uint32_t size, bool keyframe, int &found_data) { + dp_hdr_t *hdr; + int chunks, isize; + mkv_demuxer_t *mkv_d; + demux_stream_t *ds; + demux_packet_t *dp; + + mkv_d = (mkv_demuxer_t *)demuxer->priv; + ds = demuxer->video; + chunks = data[0]; + isize = size - 1 - (chunks + 1) * 8; + dp = new_demux_packet(sizeof(dp_hdr_t) + isize + 8 * (chunks + 1)); + memcpy(&dp->buffer[sizeof(dp_hdr_t)], &data[1 + (chunks + 1) * 8], isize); + memcpy(&dp->buffer[sizeof(dp_hdr_t) + isize], &data[1], (chunks + 1) * 8); + hdr = (dp_hdr_t *)dp->buffer; + hdr->len = isize; + hdr->chunks = chunks; + hdr->timestamp = (int)(mkv_d->last_pts * 1000); + hdr->chunktab = sizeof(dp_hdr_t) + isize; + + dp->len = sizeof(dp_hdr_t) + isize + 8 * (chunks + 1); + if (mkv_d->v_skip_to_keyframe) { + dp->pts = mkv_d->last_pts; + mkv_d->video->rv_kf_base = 0; + mkv_d->video->rv_kf_pts = hdr->timestamp; + } else + dp->pts = real_fix_timestamp(mkv_d->video, &dp->buffer[sizeof(dp_hdr_t)], + hdr->timestamp); + dp->pos = demuxer->filepos; + dp->flags = keyframe ? 0x10 : 0; + + ds_add_packet(ds, dp); + + found_data++; +} + +static void handle_realaudio(demuxer_t *demuxer, unsigned char *data, + uint32_t size, bool keyframe, int &found_data) { + mkv_demuxer_t *mkv_d; + demux_packet_t *dp; + + mkv_d = (mkv_demuxer_t *)demuxer->priv; + + dp = new_demux_packet(size); + memcpy(dp->buffer, data, size); + if ((mkv_d->audio->ra_pts == mkv_d->last_pts) && + !mkv_d->a_skip_to_keyframe) + dp->pts = 0; + else + dp->pts = mkv_d->last_pts; + mkv_d->audio->ra_pts = mkv_d->last_pts; + + dp->pos = demuxer->filepos; + dp->flags = keyframe ? 0x10 : 0; + + ds_add_packet(demuxer->audio, dp); + + found_data++; +} + +extern "C" int demux_mkv_fill_buffer(demuxer_t *d) { + demux_packet_t *dp; + demux_stream_t *ds; + mkv_demuxer_t *mkv_d; + mkv_track_t *t = NULL; + int upper_lvl_el, exit_loop, found_data, i, linei, sl; + char *texttmp; + // Elements for different levels + EbmlElement *l0 = NULL, *l1 = NULL, *l2 = NULL, *l3 = NULL; + EbmlStream *es; + KaxBlock *block; + int64_t block_duration, block_bref, block_fref; + bool use_this_block, lines_cut; + float current_pts; + + mkv_d = (mkv_demuxer_t *)d->priv; + es = mkv_d->es; + l0 = mkv_d->segment; + + // End of stream + if (mkv_d->saved_l1 == NULL) + return 0; + + exit_loop = 0; + upper_lvl_el = 0; + l1 = mkv_d->saved_l1; + mkv_d->saved_l1 = NULL; + found_data = 0; + try { + // The idea is not to handle a complete KaxCluster with each call to + // demux_mkv_fill_buffer because those might be rather big. + while ((l1 != NULL) && (upper_lvl_el <= 0)) { + + if (EbmlId(*l1) == KaxCluster::ClassInfos.GlobalId) { + mkv_d->cluster = (KaxCluster *)l1; + if (found_data) { + mkv_d->saved_l1 = l1; + break; + } + + if (mkv_d->saved_l2 != NULL) { + l2 = mkv_d->saved_l2; + mkv_d->saved_l2 = NULL; + } else + l2 = es->FindNextElement(l1->Generic().Context, upper_lvl_el, + 0xFFFFFFFFL, true, 1); + while ((l2 != NULL) && (upper_lvl_el <= 0)) { + + // Handle at least one data packets in one call to + // demux_mkv_fill_buffer - but abort if we have found that. + if (found_data >= 1) { + mkv_d->saved_l2 = l2; + mkv_d->saved_l1 = l1; + exit_loop = 1; + break; + } + + if (EbmlId(*l2) == KaxClusterTimecode::ClassInfos.GlobalId) { + KaxClusterTimecode &ctc = *static_cast(l2); + ctc.ReadData(es->I_O()); + mkv_d->cluster_tc = uint64(ctc); +#if LIBEBML_VERSION >= 000404 + mkv_d->cluster->InitTimecode(mkv_d->cluster_tc, mkv_d->tc_scale); +#else + mkv_d->cluster->InitTimecode(mkv_d->cluster_tc); +#endif // LIBEBML_VERSION + + } else if (EbmlId(*l2) == KaxBlockGroup::ClassInfos.GlobalId) { + + KaxBlockDuration *kbdur; + KaxReferenceBlock *krefblock; + KaxBlock *kblock; + + block = NULL; + block_duration = -1; + block_bref = 0; + block_fref = 0; + + l2->Read(*es, KaxBlockGroup::ClassInfos.Context, upper_lvl_el, l3, + true); + + kbdur = FINDFIRST(l2, KaxBlockDuration); + if (kbdur != NULL) + block_duration = uint64(*kbdur); + + kblock = FINDFIRST(l2, KaxBlock); + if (kblock != NULL) { + kblock->SetParent(*mkv_d->cluster); + if ((mkv_d->stop_timecode > 0) && + ((kblock->GlobalTimecode() / 1000000 - mkv_d->first_tc) >= + mkv_d->stop_timecode)) { + delete l2; + return 0; + } + } + + krefblock = FINDFIRST(l2, KaxReferenceBlock); + while (krefblock != NULL) { + if (int64(*krefblock) < 0) + block_bref = int64(*krefblock); + else + block_fref = int64(*krefblock); + + krefblock = FINDNEXT(l2, KaxReferenceBlock, krefblock); + } + + if (kblock != NULL) { + // Clear the subtitles if they're obsolete now. + lines_cut = false; + for (linei = 0; linei < mkv_d->subs.lines; linei++) { + if (mkv_d->clear_subs_at[linei] <= + (kblock->GlobalTimecode() / 1000000 - mkv_d->first_tc)) { + sl = linei; + texttmp = mkv_d->subs.text[sl]; + while (sl < mkv_d->subs.lines) { + mkv_d->subs.text[sl] = mkv_d->subs.text[sl + 1]; + mkv_d->clear_subs_at[sl] = mkv_d->clear_subs_at[sl + 1]; + sl++; + } + mkv_d->subs.text[sl] = texttmp; + mkv_d->subs.lines--; + linei--; + lines_cut = true; + } + if (lines_cut) { + vo_sub = &mkv_d->subs; + vo_osd_changed(OSDTYPE_SUBTITLE); + } + } + + ds = NULL; + if ((mkv_d->video != NULL) && + (mkv_d->video->tnum == kblock->TrackNum())) { + ds = d->video; + t = mkv_d->video; + } else if ((mkv_d->audio != NULL) && + (mkv_d->audio->tnum == kblock->TrackNum())) { + ds = d->audio; + t = mkv_d->audio; + } else if ((mkv_d->subs_track != NULL) && + (mkv_d->subs_track->tnum == kblock->TrackNum())) { + ds = d->sub; + t = mkv_d->subs_track; + } + + use_this_block = true; + + current_pts = (float)(kblock->GlobalTimecode() / 1000000.0 - + mkv_d->first_tc) / 1000.0; + if (current_pts < 0.0) + current_pts = 0.0; + + if (ds == d->audio) { + if (mkv_d->a_skip_to_keyframe && + (block_bref != 0)) + use_this_block = false; + + else if (mkv_d->v_skip_to_keyframe) + use_this_block = false; + + if (mkv_d->audio->fix_i_bps && use_this_block) { + uint32_t i, sum; + sh_audio_t *sh; + + for (i = 0, sum = 0; i < kblock->NumberFrames(); i++) { + DataBuffer &data = kblock->GetBuffer(i); + sum += data.Size(); + } + sh = (sh_audio_t *)ds->sh; + if (block_duration != -1) { + sh->i_bps = sum * 1000 / block_duration; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Changed i_bps to %d.\n", + sh->i_bps); + mkv_d->audio->fix_i_bps = false; + } else if (mkv_d->audio->qt_last_a_pts == 0.0) + mkv_d->audio->qt_last_a_pts = current_pts; + else if (mkv_d->audio->qt_last_a_pts != current_pts) { + sh->i_bps = (int)(sum / (current_pts - + mkv_d->audio->qt_last_a_pts)); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Changed i_bps to %d.\n", + sh->i_bps); + mkv_d->audio->fix_i_bps = false; + } + } + + } else if ((current_pts * 1000) < mkv_d->skip_to_timecode) + use_this_block = false; + + else if (ds == d->video) { + if (mkv_d->v_skip_to_keyframe && + (block_bref != 0)) + use_this_block = false; + + } else if ((mkv_d->subs_track != NULL) && + (mkv_d->subs_track->tnum == kblock->TrackNum())) { + if (mkv_d->subtitle_type != MKV_SUBTYPE_VOBSUB) { + if (!mkv_d->v_skip_to_keyframe) + handle_subtitles(d, kblock, block_duration); + use_this_block = false; + } + + } else + use_this_block = false; + + if (use_this_block) { + mkv_d->last_pts = current_pts; + ds->pts = current_pts; + d->filepos = mkv_d->in->getFilePointer(); + mkv_d->last_filepos = d->filepos; + + for (i = 0; i < (int)kblock->NumberFrames(); i++) { + unsigned char *re_buffer; + uint32_t re_size; + bool re_modified; + DataBuffer &data = kblock->GetBuffer(i); + + re_buffer = data.Buffer(); + re_size = data.Size(); + re_modified = reverse_encodings(t, re_buffer, re_size, 1); + + if ((ds == d->video) && mkv_d->video->realmedia) + handle_realvideo(d, re_buffer, re_size, block_bref == 0, + found_data); + + else if ((ds == d->audio) && mkv_d->audio->realmedia) + handle_realaudio(d, re_buffer, re_size, block_bref == 0, + found_data); + + else { + dp = new_demux_packet(re_size); + memcpy(dp->buffer, re_buffer, re_size); + dp->flags = block_bref == 0 ? 1 : 0; + dp->pts = mkv_d->last_pts + i * t->default_duration; + ds_add_packet(ds, dp); + found_data++; + } + if (re_modified) + safefree(re_buffer); + } + if (ds == d->video) { + mkv_d->v_skip_to_keyframe = false; + mkv_d->skip_to_timecode = 0; + } else if (ds == d->audio) + mkv_d->a_skip_to_keyframe = false; + } + + delete block; + } // kblock != NULL + + } else + l2->SkipData(*es, l2->Generic().Context); + + if (!in_parent(l1)) { + delete l2; + break; + } + + if (upper_lvl_el > 0) { + upper_lvl_el--; + if (upper_lvl_el > 0) + break; + delete l2; + l2 = l3; + continue; + + } else if (upper_lvl_el < 0) { + upper_lvl_el++; + if (upper_lvl_el < 0) + break; + + } + + l2->SkipData(*es, l2->Generic().Context); + delete l2; + l2 = es->FindNextElement(l1->Generic().Context, upper_lvl_el, + 0xFFFFFFFFL, true); + + } // while (l2 != NULL) + + } else if (EbmlId(*l1) == KaxCues::ClassInfos.GlobalId) + return 0; + else + l1->SkipData(*es, l1->Generic().Context); + + if (!in_parent(l0)) { + delete l1; + break; + } + + if (upper_lvl_el > 0) { + upper_lvl_el--; + if (upper_lvl_el > 0) + break; + delete l1; + l1 = l2; + continue; + + } else if (upper_lvl_el < 0) { + upper_lvl_el++; + if (upper_lvl_el < 0) + break; + + } + + if (exit_loop) + break; + + l1->SkipData(*es, l1->Generic().Context); + delete l1; + l1 = es->FindNextElement(l0->Generic().Context, upper_lvl_el, + 0xFFFFFFFFL, true); + + } // while (l1 != NULL) + } catch (exception ex) { + mp_msg(MSGT_DEMUX, MSGL_ERR, "[mkv] exception caught\n"); + return 0; + } + + if (found_data) + return 1; + + return 0; +} + +extern "C" void resync_audio_stream(sh_audio_t *sh_audio); + +extern "C" void demux_mkv_seek(demuxer_t *demuxer, float rel_seek_secs, + int flags) { + int i, k, upper_lvl_el; + mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)demuxer->priv; + int64_t target_timecode, target_filepos = 0, min_diff, diff, current_pos; + int64_t cluster_pos; + mkv_track_index_t *index; + mkv_index_entry_t *entry; + EbmlElement *l1; + + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] SEEK, relss: %.3f, flags: %d\n", + rel_seek_secs, flags); + + if (!mkv_d->cues_found && !mkv_d->cues_searched) { + // We've not found an index so far. So let's skip over all level 1 + // elements until we either hit another segment, the end of the file + // or - suprise - some cues. + current_pos = mkv_d->in->getFilePointer(); + + // Skip the data but do not delete the element! This is our current + // cluster, and we need it later on in demux_mkv_fill_buffer. + l1 = mkv_d->saved_l1; + l1->SkipData(static_cast(*mkv_d->es), l1->Generic().Context); + l1 = mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + while (l1 != NULL) { + if (upper_lvl_el) + break; + + if (EbmlId(*l1) == KaxCues::ClassInfos.GlobalId) { + parse_cues(mkv_d, l1->GetElementPosition()); + delete l1; + break; + } else { + if (EbmlId(*l1) == KaxCluster::ClassInfos.GlobalId) + add_cluster_position(mkv_d, l1->GetElementPosition()); + l1->SkipData(static_cast(*mkv_d->es), + l1->Generic().Context); + delete l1; + l1 = mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + } + } + + if (demuxer->stream->eof) + stream_reset(demuxer->stream); + mkv_d->in->setFilePointer(current_pos); + + mkv_d->cues_searched = 1; + } + + if (!(flags & 2)) { // Time in secs + if (flags & 1) // Absolute seek + target_timecode = 0; + else // Relative seek + target_timecode = (int64_t)(mkv_d->last_pts * 1000.0); + target_timecode += (int64_t)(rel_seek_secs * 1000.0); + if (target_timecode < 0) + target_timecode = 0; + + min_diff = 0xFFFFFFFL; + + // Let's find the entry in the index with the smallest difference + // to the wanted timecode. + entry = NULL; + for (i = 0; i < mkv_d->num_indexes; i++) + if (mkv_d->index[i].tnum == mkv_d->video->tnum) { + index = &mkv_d->index[i]; + for (k = 0; k < index->num_entries; k++) { + if (!index->entries[k].is_key) + continue; + diff = target_timecode - (int64_t)index->entries[k].timecode; + if (((flags & 1) || (target_timecode <= (mkv_d->last_pts * 1000))) && + (diff >= 0) && (diff < min_diff)) { + min_diff = diff; + entry = &index->entries[k]; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek BACK, solution: last_pts: " + "%d, target: %d, diff: %d, entry->timecode: %d, PREV diff: " + "%d, k: %d\n", (int)(mkv_d->last_pts * 1000), + (int)target_timecode, (int)diff, (int)entry->timecode, + k > 0 ? (int)(index->entries[k - 1].timecode - + target_timecode) : 0, k); + + } else if ((target_timecode > (mkv_d->last_pts * 1000)) && + (diff < 0) && (-diff < min_diff)) { + min_diff = -diff; + entry = &index->entries[k]; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek FORW, solution: last_pts: " + "%d, target: %d, diff: %d, entry->timecode: %d, NEXT diff: " + "%d, k: %d\n", (int)(mkv_d->last_pts * 1000), + (int)target_timecode, (int)diff, (int)entry->timecode, + k < index->num_entries ? + (int)(index->entries[k + 1].timecode - target_timecode) : + 0, k); + } + } + break; + } + + if (mkv_d->saved_l1 != NULL) + delete mkv_d->saved_l1; + + if (mkv_d->saved_l2 != NULL) { + delete mkv_d->saved_l2; + mkv_d->saved_l2 = NULL; + } + + if (entry != NULL) { // We've found an entry. + mkv_d->in->setFilePointer(entry->filepos); + upper_lvl_el = 0; + mkv_d->saved_l1 = + mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + } else { // We've not found an entry --> no index? + target_filepos = (int64_t)(target_timecode * mkv_d->last_filepos / + (mkv_d->last_pts * 1000.0)); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] No index entry found. Calculated " + "filepos %lld. Old timecode %lld.\n", target_filepos, + (int64_t)(mkv_d->last_pts * 1000.0)); + // Let's find the nearest cluster so that libebml does not have to + // do so much work. + cluster_pos = 0; + min_diff = 0x0FFFFFFFL; + for (i = 0; i < mkv_d->num_cluster_pos; i++) { + diff = mkv_d->cluster_positions[i] - target_filepos; + if (rel_seek_secs < 0) { + if ((diff > 0) && (diff < min_diff)) { + cluster_pos = mkv_d->cluster_positions[i]; + min_diff = diff; + } + } else if ((diff < 0 ? -1 * diff : diff) < min_diff) { + cluster_pos = mkv_d->cluster_positions[i]; + min_diff = diff < 0 ? -1 * diff : diff; + } + } + if (min_diff != 0x0FFFFFFFL) { + target_filepos = cluster_pos; + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] New target_filepos because of " + "cluster: %lld.\n", target_filepos); + } + if (target_filepos >= demuxer->movi_end) + return; + mkv_d->in->setFilePointer(target_filepos); + upper_lvl_el = 0; + mkv_d->saved_l1 = + mkv_d->es->FindNextElement(mkv_d->segment->Generic().Context, + upper_lvl_el, 0xFFFFFFFFL, true, 1); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek result: target_timecode %lld, " + "did not find an entry. Calculated target_filspos: %lld\n", + target_timecode, target_filepos); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek found %p (%s).\n", + mkv_d->saved_l1, mkv_d->saved_l1 == NULL ? "null" : + mkv_d->saved_l1->Generic().DebugName); + } + + if (mkv_d->video != NULL) + mkv_d->v_skip_to_keyframe = true; + if (rel_seek_secs > 0.0) + mkv_d->skip_to_timecode = target_timecode; + + mkv_d->a_skip_to_keyframe = true; + + demux_mkv_fill_buffer(demuxer); + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] New timecode: %lld\n", + (int64_t)(mkv_d->last_pts * 1000.0)); + + mkv_d->subs.lines = 0; + vo_sub = &mkv_d->subs; + vo_osd_changed(OSDTYPE_SUBTITLE); + + if(demuxer->audio->sh != NULL) + resync_audio_stream((sh_audio_t *)demuxer->audio->sh); + + } else + mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] seek unsupported flags\n"); + +} + +extern "C" void demux_close_mkv(demuxer_t *demuxer) { + mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)demuxer->priv; + + free_mkv_demuxer(mkv_d); + +#ifdef USE_ICONV + subcp_close(); +#endif +} + +extern "C" int demux_mkv_control(demuxer_t *demuxer, int cmd, void *arg) { + mkv_demuxer_t *mkv_d = (mkv_demuxer_t *)demuxer->priv; + + switch (cmd) { + case DEMUXER_CTRL_GET_TIME_LENGTH: + if (mkv_d->duration == -1.0) + return DEMUXER_CTRL_DONTKNOW; + + *((unsigned long *)arg) = (unsigned long)mkv_d->duration; + return DEMUXER_CTRL_OK; + + case DEMUXER_CTRL_GET_PERCENT_POS: + if (mkv_d->duration == -1.0) { + if (demuxer->movi_start == demuxer->movi_end) + return DEMUXER_CTRL_DONTKNOW; + + *((int *)arg) = + (int)((demuxer->filepos - demuxer->movi_start) / + ((demuxer->movi_end - demuxer->movi_start) / 100)); + return DEMUXER_CTRL_OK; + } + + *((int *)arg) = (int)(100 * mkv_d->last_pts / mkv_d->duration); + return DEMUXER_CTRL_OK; + + default: + return DEMUXER_CTRL_NOTIMPL; + } +} + +#endif /* HAVE_MATROSKA */ -- cgit v1.2.3