int findAudioTrack(mp4ff_t * f) {
int i, numTracks = mp4ff_total_tracks(f);
for(i =0; i<numTracks; i++) {
/* Found an audio track */
if(mp4ff_get_track_type(f, i) == MP4_TRACK_AUDIO)
return i;
}
return -1;
}
static aac_chapter_t *
aac_load_itunes_chapters (mp4ff_t *mp4, /* out */ int *num_chapters, int samplerate) {
*num_chapters = 0;
int i_entry_count = mp4ff_chap_get_num_tracks (mp4);
int i_tracks = mp4ff_total_tracks (mp4);
int i, j;
for( i = 0; i < i_entry_count; i++ )
{
for( j = 0; j < i_tracks; j++ )
{
int32_t tt = mp4ff_get_track_type (mp4, j);
trace ("aac: i_tracks=%d found track id=%d type=%d (expected %d %d)\n", i_tracks, mp4ff_get_track_id (mp4, j), mp4ff_get_track_type (mp4, j), mp4ff_chap_get_track_id (mp4, i), TRACK_TEXT);
if(mp4ff_chap_get_track_id (mp4, i) == mp4ff_get_track_id (mp4, j) &&
mp4ff_get_track_type (mp4, j) == TRACK_TEXT) {
trace ("aac: found subt track\n");
break;
}
}
if( j < i_tracks )
{
int i_sample_count = mp4ff_num_samples (mp4, j);
int i_sample;
aac_chapter_t *chapters = malloc (sizeof (aac_chapter_t) * i_sample_count);
memset (chapters, 0, sizeof (aac_chapter_t) * i_sample_count);
*num_chapters = 0;
int64_t total_dur = 0;
int64_t curr_sample = 0;
for( i_sample = 0; i_sample < i_sample_count; i_sample++ )
{
#if 0
const int64_t i_dts = mp4ff_get_track_dts (mp4, j, i_sample);
const int64_t i_pts_delta = mp4ff_get_track_pts_delta(mp4, j, i_sample);
trace ("i_dts = %lld, i_pts_delta = %lld\n", i_dts, i_pts_delta);
const unsigned int i_size = mp4ff_get_track_sample_size(mp4, j, i_sample);
if (i_size <= 0) {
continue;
}
int64_t i_time_offset = i_dts + max (i_pts_delta, 0);
#endif
int32_t dur = (int64_t)1000 * mp4ff_get_sample_duration (mp4, j, i_sample) / mp4ff_time_scale (mp4, j); // milliseconds
total_dur += dur;
#if 0
trace ("dur: %d %f min // offs: %lld %f (from currsample: %f)\n", dur, dur / 1000.f / 60.f, i_time_offset, i_time_offset / 1000000.f / 60.f, curr_sample * 1000.f/ samplerate);
#else
trace ("dur: %d %f min\n", dur, dur / 1000.f / 60.f);
#endif
unsigned char *buffer = NULL;
int buffer_size = 0;
int rc = mp4ff_read_sample (mp4, j, i_sample, &buffer, &buffer_size);
if (rc == 0 || !buffer) {
continue;
}
int len = (buffer[0] << 8) | buffer[1];
len = min (len, buffer_size - 2);
if (len > 0) {
chapters[*num_chapters].title = strndup (&buffer[2], len);
}
chapters[*num_chapters].startsample = curr_sample;
curr_sample += (int64_t)dur * samplerate / 1000.f;
chapters[*num_chapters].endsample = curr_sample - 1;
trace ("aac: chapter %d: %s, s=%d e=%d\n", *num_chapters, chapters[*num_chapters].title, chapters[*num_chapters].startsample, chapters[*num_chapters].endsample);
if (buffer) {
free (buffer);
}
(*num_chapters)++;
}
trace ("aac: total dur: %lld (%f min)\n", total_dur, total_dur / 1000.f / 60.f);
return chapters;
}
}
return NULL;
}
static int
aac_init (DB_fileinfo_t *_info, DB_playItem_t *it) {
aac_info_t *info = (aac_info_t *)_info;
deadbeef->pl_lock ();
info->file = deadbeef->fopen (deadbeef->pl_find_meta (it, ":URI"));
deadbeef->pl_unlock ();
if (!info->file) {
return -1;
}
// probe
float duration = -1;
int samplerate = -1;
int channels = -1;
int totalsamples = -1;
info->junk = deadbeef->junk_get_leading_size (info->file);
if (!info->file->vfs->is_streaming ()) {
if (info->junk >= 0) {
deadbeef->fseek (info->file, info->junk, SEEK_SET);
}
else {
info->junk = 0;
}
}
else {
deadbeef->fset_track (info->file, it);
}
info->mp4track = -1;
info->mp4reader.read = aac_fs_read;
info->mp4reader.write = NULL;
info->mp4reader.seek = aac_fs_seek;
info->mp4reader.truncate = NULL;
info->mp4reader.user_data = info;
if (!info->file->vfs->is_streaming ()) {
trace ("aac_init: mp4ff_open_read %s\n", deadbeef->pl_find_meta (it, ":URI"));
info->mp4 = mp4ff_open_read (&info->mp4reader);
if (info->mp4) {
int ntracks = mp4ff_total_tracks (info->mp4);
for (int i = 0; i < ntracks; i++) {
if (mp4ff_get_track_type (info->mp4, i) != TRACK_AUDIO) {
continue;
}
int res = mp4_track_get_info (info->mp4, i, &duration, &samplerate, &channels, &totalsamples, &info->mp4framesize);
if (res >= 0 && duration > 0) {
info->mp4track = i;
break;
}
}
trace ("track: %d\n", info->mp4track);
if (info->mp4track >= 0) {
// prepare decoder
int res = mp4_track_get_info (info->mp4, info->mp4track, &duration, &samplerate, &channels, &totalsamples, &info->mp4framesize);
if (res != 0) {
trace ("aac: mp4_track_get_info(%d) returned error\n", info->mp4track);
return -1;
}
// init mp4 decoding
info->mp4samples = mp4ff_num_samples(info->mp4, info->mp4track);
info->dec = NeAACDecOpen ();
unsigned long srate;
unsigned char ch;
unsigned char* buff = 0;
unsigned int buff_size = 0;
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config (info->mp4, info->mp4track, &buff, &buff_size);
if (NeAACDecInit2(info->dec, buff, buff_size, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
free (buff);
return -1;
}
if (buff) {
free (buff);
}
trace ("aac: successfully initialized track %d\n", info->mp4track);
_info->fmt.samplerate = samplerate;
_info->fmt.channels = channels;
}
else {
trace ("aac: track not found in mp4 container\n");
mp4ff_close (info->mp4);
info->mp4 = NULL;
}
}
if (!info->mp4) {
trace ("aac: looking for raw stream...\n");
if (info->junk >= 0) {
deadbeef->fseek (info->file, info->junk, SEEK_SET);
}
else {
deadbeef->rewind (info->file);
}
int offs = parse_aac_stream (info->file, &samplerate, &channels, &duration, &totalsamples);
if (offs == -1) {
trace ("aac stream not found\n");
return -1;
}
if (offs > info->junk) {
info->junk = offs;
}
if (info->junk >= 0) {
deadbeef->fseek (info->file, info->junk, SEEK_SET);
}
else {
deadbeef->rewind (info->file);
}
trace ("found aac stream (junk: %d, offs: %d)\n", info->junk, offs);
_info->fmt.channels = channels;
_info->fmt.samplerate = samplerate;
}
}
else {
// sync before attempting to init
int samplerate, channels;
float duration;
int offs = parse_aac_stream (info->file, &samplerate, &channels, &duration, NULL);
if (offs < 0) {
trace ("aac: parse_aac_stream failed\n");
return -1;
}
if (offs > info->junk) {
info->junk = offs;
}
trace("parse_aac_stream returned %x\n", offs);
deadbeef->pl_replace_meta (it, "!FILETYPE", "AAC");
}
// duration = (float)totalsamples / samplerate;
// deadbeef->pl_set_item_duration (it, duration);
_info->fmt.bps = 16;
_info->plugin = &plugin;
if (!info->mp4) {
trace ("NeAACDecOpen for raw stream\n");
info->dec = NeAACDecOpen ();
trace ("prepare for NeAACDecInit: fread %d from offs %lld\n", AAC_BUFFER_SIZE, deadbeef->ftell (info->file));
info->remaining = deadbeef->fread (info->buffer, 1, AAC_BUFFER_SIZE, info->file);
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (info->dec);
// conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (info->dec, conf);
unsigned long srate;
unsigned char ch;
trace ("NeAACDecInit (%d bytes)\n", info->remaining);
int consumed = NeAACDecInit (info->dec, info->buffer, info->remaining, &srate, &ch);
trace ("NeAACDecInit returned samplerate=%d, channels=%d, consumed: %d\n", (int)srate, (int)ch, consumed);
if (consumed < 0) {
trace ("NeAACDecInit returned %d\n", consumed);
return -1;
}
if (consumed > info->remaining) {
trace ("NeAACDecInit consumed more than available! wtf?\n");
return -1;
}
if (consumed == info->remaining) {
info->remaining = 0;
}
else if (consumed > 0) {
memmove (info->buffer, info->buffer + consumed, info->remaining - consumed);
info->remaining -= consumed;
}
_info->fmt.channels = ch;
_info->fmt.samplerate = srate;
}
if (!info->file->vfs->is_streaming ()) {
if (it->endsample > 0) {
info->startsample = it->startsample;
info->endsample = it->endsample;
plugin.seek_sample (_info, 0);
}
else {
info->startsample = 0;
info->endsample = totalsamples-1;
}
}
if (_info->fmt.channels == 7) {
_info->fmt.channels = 8;
}
trace ("totalsamples: %d, endsample: %d, samples-from-duration: %d, samplerate %d, channels %d\n", totalsamples-1, info->endsample, (int)deadbeef->pl_get_item_duration (it)*44100, _info->fmt.samplerate, _info->fmt.channels);
for (int i = 0; i < _info->fmt.channels; i++) {
_info->fmt.channelmask |= 1 << i;
}
info->noremap = 0;
info->remap[0] = -1;
trace ("init success\n");
return 0;
}
static DB_playItem_t *
aac_insert (ddb_playlist_t *plt, DB_playItem_t *after, const char *fname) {
trace ("adding %s\n", fname);
DB_FILE *fp = deadbeef->fopen (fname);
if (!fp) {
trace ("not found\n");
return NULL;
}
aac_info_t info = {0};
info.junk = deadbeef->junk_get_leading_size (fp);
if (info.junk >= 0) {
trace ("junk: %d\n", info.junk);
deadbeef->fseek (fp, info.junk, SEEK_SET);
}
else {
info.junk = 0;
}
const char *ftype = NULL;
float duration = -1;
int totalsamples = 0;
int samplerate = 0;
int channels = 0;
int mp4track = -1;
MP4FILE mp4 = NULL;
if (fp->vfs->is_streaming ()) {
trace ("streaming aac (%s)\n", fname);
ftype = "RAW AAC";
}
else {
// slowwww!
info.file = fp;
MP4FILE_CB cb = {
.read = aac_fs_read,
.write = NULL,
.seek = aac_fs_seek,
.truncate = NULL,
.user_data = &info
};
mp4ff_t *mp4 = mp4ff_open_read (&cb);
if (mp4) {
int ntracks = mp4ff_total_tracks (mp4);
trace ("aac: numtracks=%d\n", ntracks);
int i;
for (i = 0; i < ntracks; i++) {
if (mp4ff_get_track_type (mp4, i) != TRACK_AUDIO) {
trace ("aac: track %d is not audio\n", i);
continue;
}
int mp4framesize;
int res = mp4_track_get_info (mp4, i, &duration, &samplerate, &channels, &totalsamples, &mp4framesize);
if (res >= 0 && duration > 0) {
trace ("aac: found audio track %d (duration=%f, totalsamples=%d)\n", i, duration, totalsamples);
int num_chapters;
aac_chapter_t *chapters = NULL;
if (mp4ff_chap_get_num_tracks(mp4) > 0) {
chapters = aac_load_itunes_chapters (mp4, &num_chapters, samplerate);
}
DB_playItem_t *it = deadbeef->pl_item_alloc_init (fname, plugin.plugin.id);
ftype = "MP4 AAC";
deadbeef->pl_add_meta (it, ":FILETYPE", ftype);
deadbeef->pl_set_meta_int (it, ":TRACKNUM", i);
deadbeef->plt_set_item_duration (plt, it, duration);
aac_load_tags (it, mp4);
int apeerr = deadbeef->junk_apev2_read (it, fp);
int v2err = deadbeef->junk_id3v2_read (it, fp);
int v1err = deadbeef->junk_id3v1_read (it, fp);
int64_t fsize = deadbeef->fgetlength (fp);
char s[100];
snprintf (s, sizeof (s), "%lld", fsize);
deadbeef->pl_add_meta (it, ":FILE_SIZE", s);
deadbeef->pl_add_meta (it, ":BPS", "16");
snprintf (s, sizeof (s), "%d", channels);
deadbeef->pl_add_meta (it, ":CHANNELS", s);
snprintf (s, sizeof (s), "%d", samplerate);
deadbeef->pl_add_meta (it, ":SAMPLERATE", s);
int br = (int)roundf(fsize / duration * 8 / 1000);
snprintf (s, sizeof (s), "%d", br);
deadbeef->pl_add_meta (it, ":BITRATE", s);
// embedded chapters
deadbeef->pl_lock (); // FIXME: is it needed?
if (chapters && num_chapters > 0) {
DB_playItem_t *cue = aac_insert_with_chapters (plt, after, it, chapters, num_chapters, totalsamples, samplerate);
for (int n = 0; n < num_chapters; n++) {
if (chapters[n].title) {
free (chapters[n].title);
}
}
free (chapters);
if (cue) {
deadbeef->fclose (fp);
mp4ff_close (mp4);
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
deadbeef->pl_unlock ();
return cue;
}
}
// embedded cue
const char *cuesheet = deadbeef->pl_find_meta (it, "cuesheet");
DB_playItem_t *cue = NULL;
if (cuesheet) {
cue = deadbeef->plt_insert_cue_from_buffer (plt, after, it, cuesheet, strlen (cuesheet), totalsamples, samplerate);
if (cue) {
deadbeef->fclose (fp);
mp4ff_close (mp4);
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
deadbeef->pl_unlock ();
return cue;
}
}
deadbeef->pl_unlock ();
cue = deadbeef->plt_insert_cue (plt, after, it, totalsamples, samplerate);
if (cue) {
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
return cue;
}
after = deadbeef->plt_insert_item (plt, after, it);
deadbeef->pl_item_unref (it);
break;
}
}
mp4ff_close (mp4);
if (i < ntracks) {
deadbeef->fclose (fp);
return after;
}
if (ntracks > 0) {
// mp4 container found, but no valid aac tracks in it
deadbeef->fclose (fp);
return NULL;
}
}
}
trace ("aac: mp4 container failed, trying raw aac\n");
int res = aac_probe (fp, &duration, &samplerate, &channels, &totalsamples);
if (res == -1) {
deadbeef->fclose (fp);
return NULL;
}
ftype = "RAW AAC";
DB_playItem_t *it = deadbeef->pl_item_alloc_init (fname, plugin.plugin.id);
deadbeef->pl_add_meta (it, ":FILETYPE", ftype);
deadbeef->plt_set_item_duration (plt, it, duration);
trace ("duration: %f sec\n", duration);
// read tags
int apeerr = deadbeef->junk_apev2_read (it, fp);
int v2err = deadbeef->junk_id3v2_read (it, fp);
int v1err = deadbeef->junk_id3v1_read (it, fp);
int64_t fsize = deadbeef->fgetlength (fp);
deadbeef->fclose (fp);
if (duration > 0) {
char s[100];
snprintf (s, sizeof (s), "%lld", fsize);
deadbeef->pl_add_meta (it, ":FILE_SIZE", s);
deadbeef->pl_add_meta (it, ":BPS", "16");
snprintf (s, sizeof (s), "%d", channels);
deadbeef->pl_add_meta (it, ":CHANNELS", s);
snprintf (s, sizeof (s), "%d", samplerate);
deadbeef->pl_add_meta (it, ":SAMPLERATE", s);
int br = (int)roundf(fsize / duration * 8 / 1000);
snprintf (s, sizeof (s), "%d", br);
deadbeef->pl_add_meta (it, ":BITRATE", s);
// embedded cue
deadbeef->pl_lock ();
const char *cuesheet = deadbeef->pl_find_meta (it, "cuesheet");
DB_playItem_t *cue = NULL;
if (cuesheet) {
cue = deadbeef->plt_insert_cue_from_buffer (plt, after, it, cuesheet, strlen (cuesheet), totalsamples, samplerate);
if (cue) {
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
deadbeef->pl_unlock ();
return cue;
}
}
deadbeef->pl_unlock ();
cue = deadbeef->plt_insert_cue (plt, after, it, totalsamples, samplerate);
if (cue) {
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
return cue;
}
}
after = deadbeef->plt_insert_item (plt, after, it);
deadbeef->pl_item_unref (it);
return after;
}
