diff options
author | 2001-12-26 22:57:51 +0000 | |
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committer | 2001-12-26 22:57:51 +0000 | |
commit | 33d47064093c6e57afc12dabe7291c5709bb5e01 (patch) | |
tree | 826890433171656fbab5bcc5c1bf90247b1539ba | |
parent | e572f3acf20dbade7761f8a4451f5ab39fc40490 (diff) |
added real demuxer
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3778 b3059339-0415-0410-9bf9-f77b7e298cf2
-rw-r--r-- | libmpdemux/Makefile | 2 | ||||
-rw-r--r-- | libmpdemux/demux_real.c | 402 | ||||
-rw-r--r-- | libmpdemux/demuxer.c | 17 | ||||
-rw-r--r-- | libmpdemux/demuxer.h | 1 |
4 files changed, 421 insertions, 1 deletions
diff --git a/libmpdemux/Makefile b/libmpdemux/Makefile index 6a7af65fa8..490138a726 100644 --- a/libmpdemux/Makefile +++ b/libmpdemux/Makefile @@ -3,7 +3,7 @@ LIBNAME = libmpdemux.a include ../config.mak -SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c aviwrite.c demux_asf.c demux_avi.c demux_mov.c demux_mpg.c demux_viv.c demuxer.c dvdauth.c open.c parse_es.c stream.c tv.c tvi_dummy.c tvi_v4l.c frequencies.c demux_fli.c +SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c aviwrite.c demux_asf.c demux_avi.c demux_mov.c demux_mpg.c demux_viv.c demuxer.c dvdauth.c open.c parse_es.c stream.c tv.c tvi_dummy.c tvi_v4l.c frequencies.c demux_fli.c demux_real.c ifeq ($(STREAMING),yes) SRCS += asf_streaming.c url.c http.c network.c rtp.c endif diff --git a/libmpdemux/demux_real.c b/libmpdemux/demux_real.c new file mode 100644 index 0000000000..a9d3ad6ca6 --- /dev/null +++ b/libmpdemux/demux_real.c @@ -0,0 +1,402 @@ +/* + Real parser & demuxer + + (C) Alex Beregszaszi <alex@naxine.org> + + Based on FFmpeg's libav/rm.c. +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "config.h" +#include "mp_msg.h" +#include "help_mp.h" + +#include "stream.h" +#include "demuxer.h" +#include "stheader.h" +#include "bswap.h" + +#define MKTAG(a, b, c, d) (a | (b << 8) | (c << 16) | (d << 24)) + +#define MAX_STREAMS 10 + +typedef struct { + int num_of_packets; + int last_a_stream; + int a_streams[MAX_STREAMS]; + int last_v_stream; + int v_streams[MAX_STREAMS]; +} real_priv_t; + +static void get_str(int isbyte, demuxer_t *demuxer, char *buf, int buf_size) +{ + int len, i; + char *q; + + if (isbyte) + len = stream_read_char(demuxer->stream); + else + len = stream_read_word(demuxer->stream); +#if 1 + q = buf; + for (i = 0; i < len; i++) + if (i < (buf_size - 1)) + *q++ = stream_read_char(demuxer->stream); + *q = 0; +#else + stream_read(demuxer->stream, buf, buf_size); +#endif +} + +static void skip_str(int isbyte, demuxer_t *demuxer) +{ + int len; + + if (isbyte) + len = stream_read_char(demuxer->stream); + else + len = stream_read_word(demuxer->stream); + + stream_skip(demuxer->stream, len); + + printf("skip_str: %d bytes skipped\n", len); +} + +int real_check_file(demuxer_t* demuxer){ + real_priv_t *priv; + int c; + + mp_msg(MSGT_DEMUX,MSGL_V,"Checking for REAL\n"); + + c = stream_read_dword_le(demuxer->stream); + if (c == -256) + return 0; /* EOF */ + if (c != MKTAG('.', 'R', 'M', 'F')) + return 0; /* bad magic */ + + priv = malloc(sizeof(real_priv_t)); + memset(priv, 0, sizeof(real_priv_t)); + demuxer->priv = priv; + + return 1; +} + +// return value: +// 0 = EOF or no stream found +// 1 = successfully read a packet +int demux_real_fill_buffer(demuxer_t *demuxer) +{ + real_priv_t *priv = demuxer->priv; + demux_stream_t *ds = NULL; + int len; + int timestamp; + int stream_id; + int i; + +// printf("num_of_packets: %d\n", priv->num_of_packets); + +loop: + if (priv->num_of_packets == 0) + return 0; /* EOF */ + stream_skip(demuxer->stream, 2); + len = stream_read_word(demuxer->stream); + if (len == -256) /* EOF */ + return 0; + if (len < 12) + { + printf("bad packet len (%d)\n", len); + stream_skip(demuxer->stream, len); + goto loop; +// return 0; /* bad packet */ + } + stream_id = stream_read_word(demuxer->stream); + timestamp = stream_read_dword(demuxer->stream); + +// printf("packet: len: %d, stream_id: %d, timestamp: %d\n", +// len, stream_id, timestamp); + + stream_skip(demuxer->stream, 1); /* reserved */ + stream_skip(demuxer->stream, 1); /* flags */ + + priv->num_of_packets--; + len -= 12; + + /* check if stream_id is audio stream */ + for (i = 0; i < priv->last_a_stream; i++) + { + if (priv->a_streams[i] == stream_id) + { +// printf("packet is audio (id: %d)\n", stream_id); + ds = demuxer->audio; /* FIXME */ + break; + } + } + /* check if stream_id is video stream */ + for (i = 0; i < priv->last_v_stream; i++) + { + if (priv->v_streams[i] == stream_id) + { +// printf("packet is video (id: %d)\n", stream_id); + ds = demuxer->video; /* FIXME */ + break; + } + } + + /* id not found */ + if (ds == NULL) + { + printf("unknown stream id (%d)\n", stream_id); + stream_skip(demuxer->stream, len); + goto loop; + } + + demuxer->filepos = stream_tell(demuxer->stream); + ds_read_packet(ds, demuxer->stream, len, timestamp/90000.0f, demuxer->filepos, 0); + + return 1; +} + +void demux_open_real(demuxer_t* demuxer) +{ + real_priv_t* priv = demuxer->priv; + int num_of_headers; + int i; + + stream_skip(demuxer->stream, 4); /* header size */ + stream_skip(demuxer->stream, 2); + stream_skip(demuxer->stream, 4); + num_of_headers = stream_read_dword(demuxer->stream); +// stream_skip(demuxer->stream, 4); /* number of headers */ + + /* parse chunks */ + for (i = 1; i < num_of_headers; i++) + { + int chunk, chunk_size; + + chunk = stream_read_dword_le(demuxer->stream); + chunk_size = stream_read_dword(demuxer->stream); + + stream_skip(demuxer->stream, 2); + + if (chunk_size < 10) + goto fail; + + printf("Chunk: %.4s (size: %d)\n", + (char *)&chunk, chunk_size); + + switch(chunk) + { + case MKTAG('P', 'R', 'O', 'P'): + printf("Properties chunk\n"); + stream_skip(demuxer->stream, 4); /* max bitrate */ + stream_skip(demuxer->stream, 4); /* avg bitrate */ + stream_skip(demuxer->stream, 4); /* max packet size */ + stream_skip(demuxer->stream, 4); /* avg packet size */ + stream_skip(demuxer->stream, 4); /* nb packets */ + stream_skip(demuxer->stream, 4); /* duration */ + stream_skip(demuxer->stream, 4); /* preroll */ + stream_skip(demuxer->stream, 4); /* index offset */ + stream_skip(demuxer->stream, 4); /* data offset */ + stream_skip(demuxer->stream, 2); /* nb streams */ + stream_skip(demuxer->stream, 2); /* flags */ + break; + case MKTAG('C', 'O', 'N', 'T'): + printf("Broadcasting informations (title, author, copyright, comment)\n"); + skip_str(0, demuxer); /* title */ + skip_str(0, demuxer); /* author */ + skip_str(0, demuxer); /* copyright */ + skip_str(0, demuxer); /* comment */ + break; + case MKTAG('M', 'D', 'P', 'R'): + { + /* new stream */ + int stream_id; + int bitrate; + int codec_data_size; + int codec_pos; + int v; + + stream_id = stream_read_word(demuxer->stream); + printf("Found new stream (id: %d)\n", stream_id); + + stream_skip(demuxer->stream, 4); /* max bitrate */ + bitrate = stream_read_dword(demuxer->stream); /* bitrate */ + stream_skip(demuxer->stream, 4); /* max packet size */ + stream_skip(demuxer->stream, 4); /* avg packet size */ + stream_skip(demuxer->stream, 4); /* start time */ + stream_skip(demuxer->stream, 4); /* preroll */ + stream_skip(demuxer->stream, 4); /* duration */ + + skip_str(1, demuxer); /* stream description */ + skip_str(1, demuxer); /* mimetype */ + + codec_data_size = stream_read_dword(demuxer->stream); + codec_pos = stream_tell(demuxer->stream); + + v = stream_read_dword(demuxer->stream); + if (v == MKTAG(0xfd, 'a', 'r', '.')) /* audio header */ + { + sh_audio_t *sh = new_sh_audio(demuxer, stream_id); + + printf("Found audio stream!\n"); + stream_skip(demuxer->stream, 4); /* version */ + stream_skip(demuxer->stream, 4); /* .ra4 */ + stream_skip(demuxer->stream, 4); + stream_skip(demuxer->stream, 2); + stream_skip(demuxer->stream, 4); /* header size */ + stream_skip(demuxer->stream, 2); /* add codec info */ + stream_skip(demuxer->stream, 4); /* coded frame size */ + stream_skip(demuxer->stream, 4); + stream_skip(demuxer->stream, 4); + stream_skip(demuxer->stream, 4); + stream_skip(demuxer->stream, 2); /* 1 */ + stream_skip(demuxer->stream, 2); /* coded frame size */ + stream_skip(demuxer->stream, 4); + + sh->samplerate = stream_read_word(demuxer->stream); + stream_skip(demuxer->stream, 4); + sh->channels = stream_read_word(demuxer->stream); + + { + char buf[128]; + + get_str(1, demuxer, buf, sizeof(buf)); + get_str(1, demuxer, buf, sizeof(buf)); + + v = 0; /* not supported audio codec */ + if (!strcmp(buf, "dnet")) + { + printf("Found AC3 audio\n"); + sh->format = 0x2000; /* ac3 */ + v = 1; + } + } +// skip_str(1, demuxer); /* desc */ +// skip_str(1, demuxer); /* desc */ + + /* the audio codec name is stored in desc */ + /* available codecs: DNET -> ac3 */ +// sh->format = 0x2000; /* ac3 */ + + if (v) + { + printf("Audio codec: 0x%x\n", sh->format); + /* insert as stream */ + demuxer->audio->sh = sh; + sh->ds = demuxer->audio; + demuxer->audio->id = stream_id; + + if (priv->last_a_stream+1 < MAX_STREAMS) + { + priv->a_streams[priv->last_a_stream] = stream_id; + priv->last_a_stream++; + } + } + } + else + { + /* video header */ + sh_video_t *sh = new_sh_video(demuxer, stream_id); + + v = stream_read_dword_le(demuxer->stream); + printf("video: %.4s (%x)\n", (char *)&v, v); + if (v != MKTAG('V', 'I', 'D', 'O')) + { + mp_msg(MSGT_DEMUX, MSGL_ERR, "Unsupported video codec\n"); + goto skip_this_chunk; + } + + sh->format = stream_read_dword_le(demuxer->stream); /* fourcc */ + printf("video fourcc: %.4s (%x)\n", (char *)&sh->format, sh->format); + + // emulate BITMAPINFOHEADER: + sh->bih = malloc(sizeof(BITMAPINFOHEADER)); + memset(sh->bih, 0, sizeof(BITMAPINFOHEADER)); + sh->bih->biSize = 40; + sh->disp_w = sh->bih->biWidth = stream_read_word(demuxer->stream); + sh->disp_h = sh->bih->biHeight = stream_read_word(demuxer->stream); + sh->bih->biPlanes = 1; + sh->bih->biBitCount = 24; + sh->bih->biCompression = sh->format; + sh->bih->biSizeImage= sh->bih->biWidth*sh->bih->biHeight*3; + + sh->fps = stream_read_word(demuxer->stream); + sh->frametime = 1.0f/sh->fps; + + stream_skip(demuxer->stream, 4); + stream_skip(demuxer->stream, 2); + stream_skip(demuxer->stream, 4); + stream_skip(demuxer->stream, 2); + + /* h263 hack */ + v = stream_read_dword(demuxer->stream); + switch (v) + { + case 0x10000000: + /* sub id: 0 */ + /* codec id: rv10 */ + break; + case 0x10003000: + case 0x10003001: + /* sub id: 3 */ + /* codec id: rv10 */ + break; + case 0x20001000: + /* codec id: rv20 */ + break; + default: + /* codec id: none */ + } + + /* insert as stream */ + demuxer->video->sh = sh; + sh->ds = demuxer->video; + demuxer->video->id = stream_id; + if (priv->last_v_stream+1 < MAX_STREAMS) + { + priv->v_streams[priv->last_v_stream] = stream_id; + priv->last_v_stream++; + } + } + +skip_this_chunk: + /* skip codec info */ + v = stream_tell(demuxer->stream) - codec_pos; + stream_skip(demuxer->stream, codec_data_size - v); + break; + } + case MKTAG('D', 'A', 'T', 'A'): + goto header_end; + default: + printf("Unknown chunk: %x\n", chunk); + stream_skip(demuxer->stream, chunk_size - 10); + break; + } + } + +header_end: + priv->num_of_packets = stream_read_dword(demuxer->stream); +// stream_skip(demuxer->stream, 4); /* number of packets */ + stream_skip(demuxer->stream, 4); /* next data header */ + + printf("Packets in file: %d\n", priv->num_of_packets); + + /* disable seeking */ + demuxer->seekable = 0; + +fail: + return; +} + +void demux_close_real(demuxer_t *demuxer) +{ + real_priv_t* priv = demuxer->priv; + + if (priv) + free(priv); + + return; +} diff --git a/libmpdemux/demuxer.c b/libmpdemux/demuxer.c index 1c7046d78f..85da5ffc48 100644 --- a/libmpdemux/demuxer.c +++ b/libmpdemux/demuxer.c @@ -159,6 +159,7 @@ int demux_avi_fill_buffer_nini(demuxer_t *demux,demux_stream_t *ds); int demux_asf_fill_buffer(demuxer_t *demux); int demux_mov_fill_buffer(demuxer_t *demux,demux_stream_t* ds); int demux_vivo_fill_buffer(demuxer_t *demux); +int demux_real_fill_buffer(demuxer_t *demux); #ifdef USE_TV #include "tv.h" extern tvi_handle_t *tv_handler; @@ -181,6 +182,7 @@ int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){ case DEMUXER_TYPE_ASF: return demux_asf_fill_buffer(demux); case DEMUXER_TYPE_MOV: return demux_mov_fill_buffer(demux,ds); case DEMUXER_TYPE_VIVO: return demux_vivo_fill_buffer(demux); + case DEMUXER_TYPE_REAL: return demux_real_fill_buffer(demux); #ifdef USE_TV case DEMUXER_TYPE_TV: return demux_tv_fill_buffer(demux, tv_handler); #endif @@ -362,6 +364,9 @@ int demux_open_fli(demuxer_t* demuxer); extern int vivo_check_file(demuxer_t *demuxer); extern void demux_open_vivo(demuxer_t *demuxer); +extern int real_check_file(demuxer_t *demuxer); +extern void demux_open_real(demuxer_t *demuxer); + demuxer_t* demux_open(stream_t *stream,int file_format,int audio_id,int video_id,int dvdsub_id){ //int file_format=(*file_format_ptr); @@ -425,6 +430,14 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_VIVO){ file_format=DEMUXER_TYPE_VIVO; } } +//=============== Try to open as REAL file: ================= +if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_REAL){ + demuxer=new_demuxer(stream,DEMUXER_TYPE_REAL,audio_id,video_id,dvdsub_id); + if(real_check_file(demuxer)){ + mp_msg(MSGT_DEMUXER,MSGL_INFO,"Detected REAL file format!\n"); + file_format=DEMUXER_TYPE_REAL; + } +} //=============== Try to open as FLI file: ================= if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_FLI){ demuxer=new_demuxer(stream,DEMUXER_TYPE_FLI,audio_id,video_id,dvdsub_id); @@ -530,6 +543,10 @@ switch(file_format){ demux_open_vivo(demuxer); break; } + case DEMUXER_TYPE_REAL: { + demux_open_real(demuxer); + break; + } case DEMUXER_TYPE_ASF: { //---- ASF header: read_asf_header(demuxer); diff --git a/libmpdemux/demuxer.h b/libmpdemux/demuxer.h index 4ae5e9f4ae..4bd65b2bba 100644 --- a/libmpdemux/demuxer.h +++ b/libmpdemux/demuxer.h @@ -13,6 +13,7 @@ #define DEMUXER_TYPE_VIVO 8 #define DEMUXER_TYPE_TV 9 #define DEMUXER_TYPE_FLI 10 +#define DEMUXER_TYPE_REAL 11 #define DEMUXER_TIME_NONE 0 #define DEMUXER_TIME_PTS 1 |