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|
/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009-2010 Alexey Yakovenko <waker@users.sourceforge.net>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <FLAC/stream_decoder.h>
#include <FLAC/metadata.h>
#include "../../deadbeef.h"
static DB_decoder_t plugin;
static DB_functions_t *deadbeef;
//#define trace(...) { fprintf(stderr, __VA_ARGS__); }
#define trace(fmt,...)
#define min(x,y) ((x)<(y)?(x):(y))
#define max(x,y) ((x)>(y)?(x):(y))
#define BUFFERSIZE 100000
typedef struct {
DB_fileinfo_t info;
FLAC__StreamDecoder *decoder;
char *buffer; // this buffer always has float samples
int remaining; // bytes remaining in buffer from last read
int startsample;
int endsample;
int currentsample;
int totalsamples;
int flac_critical_error;
int init_stop_decoding;
DB_FILE *file;
// used only on insert
DB_playItem_t *after;
DB_playItem_t *last;
DB_playItem_t *it;
const char *fname;
int bitrate;
} flac_info_t;
// callbacks
FLAC__StreamDecoderReadStatus flac_read_cb (const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
size_t r = deadbeef->fread (buffer, 1, *bytes, info->file);
*bytes = r;
if (r == 0) {
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
FLAC__StreamDecoderSeekStatus flac_seek_cb (const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
int r = deadbeef->fseek (info->file, absolute_byte_offset, SEEK_SET);
if (r) {
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
FLAC__StreamDecoderTellStatus flac_tell_cb (const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
size_t r = deadbeef->ftell (info->file);
*absolute_byte_offset = r;
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
FLAC__StreamDecoderLengthStatus flac_lenght_cb (const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
size_t pos = deadbeef->ftell (info->file);
deadbeef->fseek (info->file, 0, SEEK_END);
*stream_length = deadbeef->ftell (info->file);
deadbeef->fseek (info->file, pos, SEEK_SET);
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
FLAC__bool flac_eof_cb (const FLAC__StreamDecoder *decoder, void *client_data) {
return 0;
}
static FLAC__StreamDecoderWriteStatus
cflac_write_callback (const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const inputbuffer[], void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
DB_fileinfo_t *_info = &info->info;
if (frame->header.blocksize == 0) {
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
if (info->bitrate > 0) {
deadbeef->streamer_set_bitrate (info->bitrate);
}
int bufsize = BUFFERSIZE - info->remaining;
int bufsamples = bufsize / (_info->channels * _info->bps / 8);
int nsamples = min (bufsamples, frame->header.blocksize);
char *bufptr = &info->buffer[info->remaining];
float mul = 1.f/ ((1 << (_info->bps-1))-1);
int channels = _info->channels;
if (channels > 2) {
channels = 2;
}
int readbytes = frame->header.blocksize * channels * _info->bps / 8;
for (int i = 0; i < nsamples; i++) {
for (int c = 0; c < channels; c++) {
int32_t sample = inputbuffer[c][i];
*((float*)bufptr) = sample * mul;
bufptr += sizeof (float);
info->remaining += sizeof (float);
}
}
if (readbytes > bufsize) {
trace ("flac: buffer overflow, distortion will occur\n");
// return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
static void
cflac_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data) {
DB_fileinfo_t *_info = (DB_fileinfo_t *)client_data;
flac_info_t *info = (flac_info_t *)_info;
info->totalsamples = metadata->data.stream_info.total_samples;
_info->samplerate = metadata->data.stream_info.sample_rate;
_info->channels = metadata->data.stream_info.channels;
_info->bps = metadata->data.stream_info.bits_per_sample;
}
static void
cflac_error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data) {
DB_fileinfo_t *_info = (DB_fileinfo_t *)client_data;
flac_info_t *info = (flac_info_t *)_info;
if (status != FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC) {
trace ("cflac: got error callback: %s\n", FLAC__StreamDecoderErrorStatusString[status]);
info->flac_critical_error = 1;
}
}
static void
cflac_init_error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data) {
if (status != FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC) {
DB_fileinfo_t *_info = (DB_fileinfo_t *)client_data;
flac_info_t *info = (flac_info_t *)_info;
fprintf(stderr, "cflac: got error callback: %s\n", FLAC__StreamDecoderErrorStatusString[status]);
info->init_stop_decoding = 1;
}
}
static DB_fileinfo_t *
cflac_open (void) {
DB_fileinfo_t *_info = malloc (sizeof (flac_info_t));
memset (_info, 0, sizeof (flac_info_t));
return _info;
}
static int
cflac_init (DB_fileinfo_t *_info, DB_playItem_t *it) {
trace ("cflac_init %s\n", it->fname);
flac_info_t *info = (flac_info_t *)_info;
info->file = deadbeef->fopen (it->fname);
if (!info->file) {
trace ("cflac_init failed to open file\n");
return -1;
}
info->flac_critical_error = 0;
const char *ext = it->fname + strlen (it->fname);
while (ext > it->fname && *ext != '/' && *ext != '.') {
ext--;
}
if (*ext == '.') {
ext++;
}
else {
ext = NULL;
}
int isogg = 0;
int skip = 0;
if (ext && !strcasecmp (ext, "flac")) {
skip = deadbeef->junk_get_leading_size (info->file);
if (skip > 0) {
deadbeef->fseek (info->file, skip, SEEK_SET);
}
char sign[4];
if (deadbeef->fread (sign, 1, 4, info->file) != 4) {
trace ("cflac_init failed to read signature\n");
return -1;
}
if (strncmp (sign, "fLaC", 4)) {
trace ("cflac_init bad signature\n");
return -1;
}
deadbeef->fseek (info->file, -4, SEEK_CUR);
}
else if (!FLAC_API_SUPPORTS_OGG_FLAC) {
trace ("flac: ogg transport support is not compiled into FLAC library\n");
return -1;
}
else {
isogg = 1;
}
FLAC__StreamDecoderInitStatus status;
info->decoder = FLAC__stream_decoder_new ();
if (!info->decoder) {
trace ("FLAC__stream_decoder_new failed\n");
return -1;
}
FLAC__stream_decoder_set_md5_checking (info->decoder, 0);
if (isogg) {
status = FLAC__stream_decoder_init_ogg_stream (info->decoder, flac_read_cb, flac_seek_cb, flac_tell_cb, flac_lenght_cb, flac_eof_cb, cflac_write_callback, cflac_metadata_callback, cflac_error_callback, info);
}
else {
status = FLAC__stream_decoder_init_stream (info->decoder, flac_read_cb, flac_seek_cb, flac_tell_cb, flac_lenght_cb, flac_eof_cb, cflac_write_callback, cflac_metadata_callback, cflac_error_callback, info);
}
if (status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
trace ("cflac_init bad decoder status\n");
return -1;
}
//_info->samplerate = -1;
if (!FLAC__stream_decoder_process_until_end_of_metadata (info->decoder)) {
trace ("cflac_init metadata failed\n");
return -1;
}
// bps/samplerate/channels were set by callbacks
_info->plugin = &plugin;
_info->readpos = 0;
if (_info->samplerate == -1) { // not a FLAC stream
trace ("cflac_init not a flac stream\n");
return -1;
}
// bitrate
size_t fsize = deadbeef->fgetlength (info->file);
FLAC__uint64 position;
FLAC__bool res = FLAC__stream_decoder_get_decode_position (info->decoder, &position);
if (res) {
fsize -= position;
}
FLAC__uint64 flac_totalsamples = FLAC__stream_decoder_get_total_samples (info->decoder);
float sec = flac_totalsamples / _info->samplerate;
if (sec > 0) {
info->bitrate = fsize / sec * 8 / 1000;
}
else {
info->bitrate = -1;
}
info->buffer = malloc (BUFFERSIZE);
info->remaining = 0;
if (it->endsample > 0) {
info->startsample = it->startsample;
info->endsample = it->endsample;
if (plugin.seek_sample (_info, 0) < 0) {
trace ("cflac_init failed to seek to sample 0\n");
return -1;
}
trace ("flac(cue): startsample=%d, endsample=%d, totalsamples=%d, currentsample=%d\n", info->startsample, info->endsample, info->totalsamples, info->currentsample);
}
else {
info->startsample = 0;
info->endsample = info->totalsamples-1;
info->currentsample = 0;
trace ("flac: startsample=%d, endsample=%d, totalsamples=%d\n", info->startsample, info->endsample, info->totalsamples);
}
if (info->flac_critical_error) {
trace ("flac: critical error while initializing\n");
return -1;
}
return 0;
}
static void
cflac_free (DB_fileinfo_t *_info) {
if (_info) {
flac_info_t *info = (flac_info_t *)_info;
if (info->decoder) {
FLAC__stream_decoder_delete (info->decoder);
}
if (info->buffer) {
free (info->buffer);
}
free (_info);
}
}
static int
cflac_read_int16 (DB_fileinfo_t *_info, char *bytes, int size) {
flac_info_t *info = (flac_info_t *)_info;
if (size / (2 * _info->channels) + info->currentsample > info->endsample) {
size = (info->endsample - info->currentsample + 1) * 2 * _info->channels;
trace ("size truncated to %d bytes, cursample=%d, endsample=%d\n", size, info->currentsample, info->endsample);
if (size <= 0) {
return 0;
}
}
int n_output_channels = _info->channels;
if (n_output_channels > 2) {
n_output_channels = 2;
}
int initsize = size;
do {
if (info->remaining) {
int n_input_frames = info->remaining / sizeof (float) / n_output_channels;
int n_output_frames = size / n_output_channels / sizeof (int16_t);
int n = min (n_input_frames, n_output_frames);
// trace ("flac: [1] if=%d, of=%d, n=%d, rem=%d, size=%d\n", n_input_frames, n_output_frames, n, info->remaining, size);
// convert from float to int16
float *in = (float *)info->buffer;
for (int i = 0; i < n; i++) {
*((int16_t *)bytes) = (int16_t)((*in) * 0x7fff);
size -= sizeof (int16_t);
bytes += sizeof (int16_t);
if (n_output_channels == 2) {
*((int16_t *)bytes) = (int16_t)((*(in+1)) * 0x7fff);
size -= sizeof (int16_t);
bytes += sizeof (int16_t);
}
in += n_output_channels;
}
int sz = n * sizeof (float) * n_output_channels;
if (sz < info->remaining) {
memmove (info->buffer, &info->buffer[sz], info->remaining - sz);
}
info->remaining -= sz;
info->currentsample += n;
_info->readpos += (float)n / _info->samplerate;
// trace ("flac: [2] if=%d, of=%d, n=%d, rem=%d, size=%d\n", n_input_frames, n_output_frames, n, info->remaining, size);
}
if (!size) {
break;
}
if (!FLAC__stream_decoder_process_single (info->decoder)) {
trace ("FLAC__stream_decoder_process_single error\n");
break;
}
if (FLAC__stream_decoder_get_state (info->decoder) == FLAC__STREAM_DECODER_END_OF_STREAM) {
trace ("FLAC__stream_decoder_get_state error\n");
break;
}
if (info->flac_critical_error) {
trace ("flac: got critical error while decoding\n");
return 0;
}
} while (size > 0);
return initsize - size;
}
static int
cflac_read_float32 (DB_fileinfo_t *_info, char *bytes, int size) {
flac_info_t *info = (flac_info_t *)_info;
if (size / (4 * _info->channels) + info->currentsample > info->endsample) {
size = (info->endsample - info->currentsample + 1) * 4 * _info->channels;
trace ("size truncated to %d bytes, cursample=%d, endsample=%d\n", size, info->currentsample, info->endsample);
if (size <= 0) {
return 0;
}
}
int n_output_channels = _info->channels;
if (n_output_channels > 2) {
n_output_channels = 2;
}
int initsize = size;
do {
if (info->remaining) {
int n_input_frames = info->remaining / sizeof (float) / n_output_channels;
int n_output_frames = size / n_output_channels / sizeof (float);
int n = min (n_input_frames, n_output_frames);
float *in = (float *)info->buffer;
for (int i = 0; i < n; i++) {
*((float *)bytes) = *in;
size -= sizeof (float);
bytes += sizeof (float);
if (n_output_channels == 2) {
*((float *)bytes) = *(in+1);
size -= sizeof (float);
bytes += sizeof (float);
}
in += n_output_channels;
}
int sz = n * sizeof (float) * n_output_channels;
if (sz < info->remaining) {
memmove (info->buffer, &info->buffer[sz], info->remaining-sz);
}
info->remaining -= sz;
info->currentsample += n;
_info->readpos += (float)n / _info->samplerate;
}
if (!size) {
break;
}
if (!FLAC__stream_decoder_process_single (info->decoder)) {
trace ("FLAC__stream_decoder_process_single error\n");
break;
}
if (FLAC__stream_decoder_get_state (info->decoder) == FLAC__STREAM_DECODER_END_OF_STREAM) {
trace ("FLAC__stream_decoder_get_state eof\n");
break;
}
if (info->flac_critical_error) {
trace ("flac: got critical error while decoding\n");
return 0;
}
} while (size > 0);
return initsize - size;
}
static int
cflac_seek_sample (DB_fileinfo_t *_info, int sample) {
flac_info_t *info = (flac_info_t *)_info;
sample += info->startsample;
info->currentsample = sample;
info->remaining = 0;
if (!FLAC__stream_decoder_seek_absolute (info->decoder, (FLAC__uint64)(sample))) {
return -1;
}
_info->readpos = (float)(sample - info->startsample)/ _info->samplerate;
return 0;
}
static int
cflac_seek (DB_fileinfo_t *_info, float time) {
return cflac_seek_sample (_info, time * _info->samplerate);
}
static FLAC__StreamDecoderWriteStatus
cflac_init_write_callback (const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const inputbuffer[], void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
if (frame->header.blocksize == 0 || info->init_stop_decoding) {
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
#if 0
static void
cflac_init_cue_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data) {
if (cflac_init_stop_decoding) {
trace ("flac: cflac_init_cue_metadata_callback: cflac_init_stop_decoding=1\n");
return;
}
cue_cb_data_t *cb = (cue_cb_data_t *)client_data;
if (metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
trace ("flac: cflac_init_cue_metadata_callback: got FLAC__METADATA_TYPE_STREAMINFO\n");
info->samplerate = metadata->data.stream_info.sample_rate;
info->channels = metadata->data.stream_info.channels;
//info->duration = metadata->data.stream_info.total_samples / (float)metadata->data.stream_info.sample_rate;
info->totalsamples = metadata->data.stream_info.total_samples;
}
}
#endif
static const char *metainfo[] = {
"ARTIST", "artist",
"TITLE", "title",
"ALBUM", "album",
"TRACKNUMBER", "track",
"DATE", "year",
"GENRE", "genre",
"COMMENT", "comment",
"PERFORMER", "performer",
"ENSEMBLE", "band",
"COMPOSER", "composer",
"ENCODED-BY", "vendor",
"DISCNUMBER", "disc",
"COPYRIGHT", "copyright",
"TRACKTOTAL", "numtracks",
NULL
};
static void
cflac_init_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data) {
flac_info_t *info = (flac_info_t *)client_data;
DB_fileinfo_t *_info = &info->info;
if (info->init_stop_decoding) {
trace ("error flag is set, ignoring init_metadata callback..\n");
return;
}
DB_playItem_t *it = info->it;
//it->tracknum = 0;
if (metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
trace ("flac: samplerate=%d, channels=%d\n", metadata->data.stream_info.sample_rate, metadata->data.stream_info.channels);
_info->samplerate = metadata->data.stream_info.sample_rate;
_info->channels = metadata->data.stream_info.channels;
info->totalsamples = metadata->data.stream_info.total_samples;
deadbeef->pl_set_item_duration (it, metadata->data.stream_info.total_samples / (float)metadata->data.stream_info.sample_rate);
}
else if (metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
const FLAC__StreamMetadata_VorbisComment *vc = &metadata->data.vorbis_comment;
for (int i = 0; i < vc->num_comments; i++) {
const FLAC__StreamMetadata_VorbisComment_Entry *c = &vc->comments[i];
if (c->length > 0) {
char *s = c->entry;
int m;
for (m = 0; metainfo[m]; m += 2) {
int l = strlen (metainfo[m]);
if (c->length > l && !strncasecmp (metainfo[m], s, l) && s[l] == '=') {
deadbeef->pl_append_meta (it, metainfo[m+1], s + l + 1);
}
}
if (!metainfo[m]) {
if (!strncasecmp (s, "CUESHEET=", 9)) {
deadbeef->pl_add_meta (it, "cuesheet", s + 9);
}
else if (!strncasecmp (s, "replaygain_album_gain=", 22)) {
it->replaygain_album_gain = atof (s + 22);
}
else if (!strncasecmp (s, "replaygain_album_peak=", 22)) {
it->replaygain_album_peak = atof (s + 22);
}
else if (!strncasecmp (s, "replaygain_track_gain=", 22)) {
it->replaygain_track_gain = atof (s + 22);
}
else if (!strncasecmp (s, "replaygain_track_peak=", 22)) {
it->replaygain_track_peak = atof (s + 22);
}
}
}
}
deadbeef->pl_add_meta (it, "title", NULL);
uint32_t f = deadbeef->pl_get_item_flags (it);
f &= ~DDB_TAG_MASK;
f |= DDB_TAG_VORBISCOMMENTS;
deadbeef->pl_set_item_flags (it, f);
}
}
static DB_playItem_t *
cflac_insert (DB_playItem_t *after, const char *fname) {
trace ("flac: inserting %s\n", fname);
DB_playItem_t *it = NULL;
FLAC__StreamDecoder *decoder = NULL;
flac_info_t info;
memset (&info, 0, sizeof (info));
info.fname = fname;
info.after = after;
info.last = after;
info.file = deadbeef->fopen (fname);
if (!info.file) {
goto cflac_insert_fail;
}
const char *ext = fname + strlen (fname);
while (ext > fname && *ext != '/' && *ext != '.') {
ext--;
}
if (*ext == '.') {
ext++;
}
else {
ext = NULL;
}
int isogg = 0;
int skip = 0;
if (ext && !strcasecmp (ext, "flac")) {
// skip id3 junk and verify fLaC signature
skip = deadbeef->junk_get_leading_size (info.file);
if (skip > 0) {
deadbeef->fseek (info.file, skip, SEEK_SET);
}
char sign[4];
if (deadbeef->fread (sign, 1, 4, info.file) != 4) {
trace ("flac: failed to read signature\n");
goto cflac_insert_fail;
}
if (strncmp (sign, "fLaC", 4)) {
trace ("flac: file signature is not fLaC\n");
goto cflac_insert_fail;
}
deadbeef->fseek (info.file, -4, SEEK_CUR);
}
else if (!FLAC_API_SUPPORTS_OGG_FLAC) {
trace ("flac: ogg transport support is not compiled into FLAC library\n");
goto cflac_insert_fail;
}
else {
isogg = 1;
}
info.init_stop_decoding = 0;
// open decoder for metadata reading
FLAC__StreamDecoderInitStatus status;
decoder = FLAC__stream_decoder_new();
if (!decoder) {
trace ("flac: failed to create decoder\n");
goto cflac_insert_fail;
}
#if 0
FLAC__stream_decoder_set_md5_checking(decoder, 0);
// try embedded cue
FLAC__stream_decoder_set_metadata_respond_all (decoder);
status = FLAC__stream_decoder_init_stream (decoder, flac_read_cb, flac_seek_cb, flac_tell_cb, flac_lenght_cb, flac_eof_cb, cflac_init_write_callback, cflac_init_cue_metadata_callback, cflac_init_error_callback, &cb);
if (status != FLAC__STREAM_DECODER_INIT_STATUS_OK || cflac_init_stop_decoding) {
trace ("flac: FLAC__stream_decoder_init_stream failed\n");
goto cflac_insert_fail;
}
if (!FLAC__stream_decoder_process_until_end_of_metadata (decoder) || cflac_init_stop_decoding) {
trace ("flac: FLAC__stream_decoder_process_until_end_of_metadata failed\n");
goto cflac_insert_fail;
}
FLAC__stream_decoder_delete(decoder);
decoder = NULL;
#endif
// read all metadata
FLAC__stream_decoder_set_md5_checking(decoder, 0);
FLAC__stream_decoder_set_metadata_respond_all (decoder);
it = deadbeef->pl_item_alloc ();
it->decoder_id = deadbeef->plug_get_decoder_id (plugin.plugin.id);
it->fname = strdup (fname);
info.it = it;
if (skip > 0) {
deadbeef->fseek (info.file, skip, SEEK_SET);
}
else {
deadbeef->rewind (info.file);
}
deadbeef->fseek (info.file, -4, SEEK_CUR);
if (isogg) {
status = FLAC__stream_decoder_init_ogg_stream (decoder, flac_read_cb, flac_seek_cb, flac_tell_cb, flac_lenght_cb, flac_eof_cb, cflac_init_write_callback, cflac_init_metadata_callback, cflac_init_error_callback, &info);
}
else {
status = FLAC__stream_decoder_init_stream (decoder, flac_read_cb, flac_seek_cb, flac_tell_cb, flac_lenght_cb, flac_eof_cb, cflac_init_write_callback, cflac_init_metadata_callback, cflac_init_error_callback, &info);
}
if (status != FLAC__STREAM_DECODER_INIT_STATUS_OK || info.init_stop_decoding) {
trace ("flac: FLAC__stream_decoder_init_stream [2] failed\n");
goto cflac_insert_fail;
}
if (!FLAC__stream_decoder_process_until_end_of_metadata (decoder) || info.init_stop_decoding) {
trace ("flac: FLAC__stream_decoder_process_until_end_of_metadata [2] failed\n");
goto cflac_insert_fail;
}
FLAC__stream_decoder_delete(decoder);
decoder = NULL;
it->filetype = isogg ? "OggFLAC" : "FLAC";
// try embedded cue
const char *cuesheet = deadbeef->pl_find_meta (it, "cuesheet");
if (cuesheet) {
DB_playItem_t *last = deadbeef->pl_insert_cue_from_buffer (after, it, cuesheet, strlen (cuesheet), info.totalsamples, info.info.samplerate);
if (last) {
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (last);
return last;
}
}
// try external cue
DB_playItem_t *cue_after = deadbeef->pl_insert_cue (after, it, info.totalsamples, info.info.samplerate);
if (cue_after) {
if (info.file) {
deadbeef->fclose (info.file);
}
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue_after);
trace ("flac: loaded external cuesheet\n");
return cue_after;
}
decoder = FLAC__stream_decoder_new();
if (!decoder) {
if (info.file) {
deadbeef->fclose (info.file);
}
goto cflac_insert_fail;
}
after = deadbeef->pl_insert_item (after, it);
deadbeef->pl_item_unref (it);
if (info.file) {
deadbeef->fclose (info.file);
}
return after;
cflac_insert_fail:
if (it) {
deadbeef->pl_item_unref (it);
}
if (decoder) {
FLAC__stream_decoder_delete(decoder);
}
if (info.file) {
deadbeef->fclose (info.file);
}
return NULL;
}
int
cflac_read_metadata (DB_playItem_t *it) {
deadbeef->pl_delete_all_meta (it);
int err = -1;
FLAC__Metadata_Chain *chain = NULL;
FLAC__Metadata_Iterator *iter = NULL;
chain = FLAC__metadata_chain_new ();
if (!chain) {
trace ("cflac_read_metadata: FLAC__metadata_chain_new failed\n");
return -1;
}
FLAC__bool res = FLAC__metadata_chain_read (chain, it->fname);
if (!res) {
trace ("cflac_read_metadata: FLAC__metadata_chain_read failed\n");
goto error;
}
FLAC__metadata_chain_merge_padding (chain);
iter = FLAC__metadata_iterator_new ();
if (!iter) {
trace ("cflac_read_metadata: FLAC__metadata_iterator_new failed\n");
goto error;
}
FLAC__metadata_iterator_init (iter, chain);
do {
FLAC__StreamMetadata *data = FLAC__metadata_iterator_get_block (iter);
if (data && data->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
// delete all crap
for (int m = 0; metainfo[m]; m += 2) {
int offs = 0;
do {
offs = FLAC__metadata_object_vorbiscomment_find_entry_from (data, offs, metainfo[m]);
if (offs != -1) {
FLAC__StreamMetadata_VorbisComment_Entry *comm = &data->data.vorbis_comment.comments[offs];
deadbeef->pl_append_meta (it, metainfo[m+1], comm->entry + strlen (metainfo[m])+1);
offs++;
}
} while (offs != -1);
}
}
} while (FLAC__metadata_iterator_next (iter));
FLAC__metadata_iterator_delete (iter);
err = 0;
deadbeef->pl_add_meta (it, "title", NULL);
uint32_t f = deadbeef->pl_get_item_flags (it);
f &= ~DDB_TAG_MASK;
f |= DDB_TAG_VORBISCOMMENTS;
deadbeef->pl_set_item_flags (it, f);
error:
if (chain) {
FLAC__metadata_chain_delete (chain);
}
return err;
}
int
cflac_write_metadata (DB_playItem_t *it) {
int err = -1;
FLAC__Metadata_Chain *chain = NULL;
FLAC__Metadata_Iterator *iter = NULL;
chain = FLAC__metadata_chain_new ();
if (!chain) {
trace ("cflac_write_metadata: FLAC__metadata_chain_new failed\n");
return -1;
}
FLAC__bool res = FLAC__metadata_chain_read (chain, it->fname);
if (!res) {
trace ("cflac_write_metadata: FLAC__metadata_chain_read failed\n");
goto error;
}
FLAC__metadata_chain_merge_padding (chain);
iter = FLAC__metadata_iterator_new ();
if (!iter) {
trace ("cflac_write_metadata: FLAC__metadata_iterator_new failed\n");
goto error;
}
FLAC__metadata_iterator_init (iter, chain);
do {
FLAC__StreamMetadata *data = FLAC__metadata_iterator_get_block (iter);
if (data && data->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
for (int m = 0; metainfo[m]; m += 2) {
const char *val = deadbeef->pl_find_meta (it, metainfo[m+1]);
if (val) {
do {} while (1 == FLAC__metadata_object_vorbiscomment_remove_entry_matching (data, metainfo[m]));
}
if (val && *val) {
while (val) {
const char *next = strchr (val, '\n');
int l;
if (next) {
l = next - val;
next++;
}
else {
l = strlen (val);
}
if (l > 0) {
char s[100+l+1];
int n = snprintf (s, sizeof (s), "%s=", metainfo[m]);
strncpy (s+n, val, l);
*(s+n+l) = 0;
FLAC__StreamMetadata_VorbisComment_Entry ent = {
.length = strlen (s),
.entry = (FLAC__byte*)s
};
//FLAC__metadata_object_vorbiscomment_replace_comment (data, ent, 1, 1);
FLAC__metadata_object_vorbiscomment_append_comment (data, ent, 1);
}
val = next;
}
}
}
}
} while (FLAC__metadata_iterator_next (iter));
FLAC__metadata_iterator_delete (iter);
if (!FLAC__metadata_chain_write (chain, 1, 0)) {
trace ("cflac_write_metadata: FLAC__metadata_chain_write failed\n");
goto error;
}
err = 0;
error:
if (chain) {
FLAC__metadata_chain_delete (chain);
}
return err;
}
static const char *exts[] = { "flac", "ogg", "oga", NULL };
static const char *filetypes[] = { "FLAC", "OggFLAC", NULL };
// define plugin interface
static DB_decoder_t plugin = {
DB_PLUGIN_SET_API_VERSION
.plugin.version_major = 0,
.plugin.version_minor = 1,
.plugin.type = DB_PLUGIN_DECODER,
.plugin.id = "stdflac",
.plugin.name = "FLAC decoder",
.plugin.descr = "FLAC decoder using libFLAC",
.plugin.author = "Alexey Yakovenko",
.plugin.email = "waker@users.sourceforge.net",
.plugin.website = "http://deadbeef.sf.net",
.open = cflac_open,
.init = cflac_init,
.free = cflac_free,
.read_int16 = cflac_read_int16,
.read_float32 = cflac_read_float32,
.seek = cflac_seek,
.seek_sample = cflac_seek_sample,
.insert = cflac_insert,
.read_metadata = cflac_read_metadata,
.write_metadata = cflac_write_metadata,
.exts = exts,
.filetypes = filetypes
};
DB_plugin_t *
flac_load (DB_functions_t *api) {
deadbeef = api;
return DB_PLUGIN (&plugin);
}
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