static int
mp4_track_get_info(mp4ff_t *mp4, int track, float *duration, int *samplerate, int *channels, int *totalsamples, int *mp4framesize) {
int sr = -1;
unsigned char* buff = 0;
unsigned int buff_size = 0;
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config(mp4, track, &buff, &buff_size);
if (buff) {
int rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
sr = mp4ASC.samplingFrequency;
if(rc < 0) {
free (buff);
trace ("aac: AudioSpecificConfig returned result=%d\n", rc);
return -1;
}
}
unsigned long srate;
unsigned char ch;
int samples;
// init mp4 decoding
NeAACDecHandle dec = NeAACDecOpen ();
if (NeAACDecInit2(dec, buff, buff_size, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
goto error;
}
*samplerate = srate;
*channels = ch;
samples = (int64_t)mp4ff_num_samples(mp4, track);
NeAACDecClose (dec);
dec = NULL;
if (samples <= 0) {
goto error;
}
int i_sample_count = samples;
int i_sample;
int64_t total_dur = 0;
for( i_sample = 0; i_sample < i_sample_count; i_sample++ )
{
total_dur += mp4ff_get_sample_duration (mp4, track, i_sample);
}
if (totalsamples) {
*totalsamples = total_dur * (*samplerate) / mp4ff_time_scale (mp4, track);
*mp4framesize = (*totalsamples) / i_sample_count;
}
*duration = total_dur / (float)mp4ff_time_scale (mp4, track);
return 0;
error:
if (dec) {
NeAACDecClose (dec);
}
free (buff);
return -1;
}
/*
* Input : Filename
* Output : 1 if succesful 0 if not
*/
int openFile(const char * name)
{
readOff = readBuf;
if((fp = fopen(name, "rb"))) {
if(strstr(name, ".aac") || strstr(name, ".AAC")) {
dec_state = DEC_AAC;
if((decoder = AACInitDecoder())) {
if(fill_readBuffer(readBuf, &readOff, READ_BUF_SIZE, &dataLeft) == READ_BUF_SIZE) {
int ret = 0;
int bitOffset = 0, bitsAvail = dataLeft << 3;
if(IS_ADIF(readBuf))
ret = UnpackADIFHeader((AACDecInfo*)decoder, &readOff, &bitOffset, &bitsAvail);
else
ret = UnpackADTSHeader((AACDecInfo*)decoder, &readOff, &bitOffset, &bitsAvail);
if(!ret) {
AACGetLastFrameInfo(decoder, &inf);
readOff = readBuf;
dataLeft = READ_BUF_SIZE;
return 1;
}
}
}
} else {
dec_state = DEC_MP4;
mp4cb.user_data = fp;
if((infile = mp4ff_open_read(&mp4cb))) {
if ((track = findAudioTrack(infile)) >= 0) {
/* Decoder failed to initialize */
if((decoder = AACInitDecoder())) {
/* Decoder should be updated to decode raw blocks in the mp4
* IMPORTANT:
* mp4ff_get_channel_count will return the wrong value for mono in this state
*/
inf.sampRateCore = mp4ff_get_sample_rate(infile, track);
samples = mp4ff_num_samples(infile, track);
/*
DECODER CONFIG:
[AAAA ABBB] [BCCC CDEF]
A)object type
B)frequency index
C)channel configuration
D)bit: frame length flag
E)bit: dependsOnCoreCoder
F)bit: extensionFlag
*/
unsigned char * config_buf;
unsigned int config_bufSize;
mp4ff_get_decoder_config(infile, track, &config_buf, &config_bufSize);
inf.profile = AAC_PROFILE_LC;
inf.nChans = (config_buf[1] >> 3) & 0xF;
free(config_buf);
if(!AACSetRawBlockParams(decoder, 0, &inf))
return 1;
}
}
}
}
}
ReadStatus MP4Reader::parse() {
mp4AudioSpecificConfig cfg;
FXuchar* buffer;
FXuint size;
FXint ntracks;
FXASSERT(handle==NULL);
FXASSERT(packet);
handle = mp4ff_open_read(&callback);
if (handle==NULL)
goto error;
ntracks = mp4ff_total_tracks(handle);
if (ntracks<=0)
goto error;
for (FXint i=0;i<ntracks;i++) {
if ((mp4ff_get_decoder_config(handle,i,&buffer,&size)==0) && buffer && size) {
if (NeAACDecAudioSpecificConfig(buffer,size,&cfg)==0) {
af.set(AP_FORMAT_S16,mp4ff_get_sample_rate(handle,i),mp4ff_get_channel_count(handle,i));
af.debug();
if (size>packet->space()) {
GM_DEBUG_PRINT("MP4 config buffer is too big for decoder packet");
free(buffer);
goto error;
}
track=i;
frame=0;
nframes=mp4ff_num_samples(handle,i);
stream_length=mp4ff_get_track_duration(handle,i);
packet->append(buffer,size);
packet->flags|=AAC_FLAG_CONFIG|AAC_FLAG_FRAME;
engine->decoder->post(new ConfigureEvent(af,Codec::AAC));
send_meta();
engine->decoder->post(packet);
packet=NULL;
flags|=FLAG_PARSED;
free(buffer);
return ReadOk;
}
free(buffer);
}
}
error:
packet->unref();
return ReadError;
}
CAMLprim value ocaml_faad_mp4_num_samples(value m, value track)
{
CAMLparam2(m, track);
mp4_t *mp = Mp4_val(m);
int t = Int_val(track);
int ans;
caml_enter_blocking_section();
ans = mp4ff_num_samples(mp->ff, t);
caml_leave_blocking_section();
CAMLreturn(Val_int(ans));
}
/*
* Input : Filename
* Output : 1 if succesful -1 if not
*/
int mp4_openFile(char * name) {
if((sndFile = fopen(name, "rb"))) {
mp4cb.user_data = sndFile;
if((infile = mp4ff_open_read(&mp4cb))) {
if ((track = findAudioTrack(infile)) >= 0) {
/* Decoder failed to initialize */
if((decoder = AACInitDecoder())) {
/* Decoder should be updated to decode raw blocks in the mp4 */
inf.sampRateCore = mp4ff_get_sample_rate(infile, track);
inf.nChans = mp4ff_get_channel_count(infile,track);
/* AACSetRawBlockParams will fail if not set */
inf.profile = AAC_PROFILE_LC;
samples = mp4ff_num_samples(infile, track);
if(!AACSetRawBlockParams(decoder, 0, &inf))
return 0;
}
}
}
}
return -1; /* sndFile == NULL */
}
static gboolean
xmms_mp4_init (xmms_xform_t *xform)
{
xmms_mp4_data_t *data;
xmms_error_t error;
gint bytes_read;
guchar *tmpbuf;
guint tmpbuflen;
g_return_val_if_fail (xform, FALSE);
data = g_new0 (xmms_mp4_data_t, 1);
data->outbuf = g_string_new (NULL);
data->buffer_size = MP4_BUFFER_SIZE;
xmms_xform_private_data_set (xform, data);
data->sampleid = 1;
data->numsamples = 0;
bytes_read = xmms_xform_read (xform,
(gchar *) data->buffer + data->buffer_length,
data->buffer_size - data->buffer_length,
&error);
data->buffer_length += bytes_read;
if (bytes_read < 8) {
XMMS_DBG ("Not enough bytes to check the MP4 header");
goto err;
}
/*
* MP4 not supported (yet) on non-seekable transport
* this needs little tweaking in mp4ff at least
*/
if (xmms_xform_seek (xform, 0, XMMS_XFORM_SEEK_CUR, &error) < 0) {
XMMS_DBG ("Non-seekable transport on MP4 not yet supported");
goto err;
}
data->mp4ff_cb = g_new0 (mp4ff_callback_t, 1);
data->mp4ff_cb->read = xmms_mp4_read_callback;
data->mp4ff_cb->seek = xmms_mp4_seek_callback;
data->mp4ff_cb->user_data = xform;
data->mp4ff = mp4ff_open_read (data->mp4ff_cb);
if (!data->mp4ff) {
XMMS_DBG ("Error opening mp4 demuxer\n");
goto err;;
}
data->track = xmms_mp4_get_track (xform, data->mp4ff);
if (data->track < 0) {
XMMS_DBG ("Can't find suitable audio track from MP4 file\n");
goto err;
}
data->numsamples = mp4ff_num_samples (data->mp4ff, data->track);
mp4ff_get_decoder_config (data->mp4ff, data->track, &tmpbuf,
&tmpbuflen);
xmms_xform_auxdata_set_bin (xform, "decoder_config", tmpbuf, tmpbuflen);
g_free (tmpbuf);
xmms_mp4_get_mediainfo (xform);
XMMS_DBG ("MP4 demuxer inited successfully!");
return TRUE;
err:
g_free (data->mp4ff_cb);
g_string_free (data->outbuf, TRUE);
g_free (data);
return FALSE;
}
int decodeMP4file(char *sndfile, aac_dec_opt *opt)
{
int track;
unsigned long samplerate;
unsigned char channels;
void *sample_buffer;
mp4ff_t *infile;
FILE *mp4File;
int sampleId, numSamples;
audio_file *aufile;
NeAACDecHandle hDecoder;
NeAACDecFrameInfo frameInfo;
unsigned char *buffer;
int buffer_size;
int first_time = 1;
/* initialise the callback structure */
mp4ff_callback_t *mp4cb = malloc(sizeof(mp4ff_callback_t));
mp4File = fopen(opt->filename, "rb");
mp4cb->read = read_callback;
mp4cb->seek = seek_callback;
mp4cb->user_data = mp4File;
infile = mp4ff_open_read(mp4cb);
if (!infile)
{
/* unable to open file */
error_handler("Error opening file: %s\n", opt->filename);
return 1;
}
if ((track = GetAACTrack(infile)) < 0)
{
error_handler("Unable to find correct AAC sound track in the MP4 file.\n");
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 1;
}
buffer = NULL;
buffer_size = 0;
mp4ff_get_decoder_config(infile, track, &buffer, &buffer_size);
hDecoder = NeAACDecOpen();
if(NeAACDecInit2(hDecoder, buffer, buffer_size, &samplerate, &channels) < 0)
{
/* If some error initializing occured, skip the file */
error_handler("Error initializing decoder library.\n");
NeAACDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 1;
}
if (buffer)
free(buffer);
numSamples = mp4ff_num_samples(infile, track);
for (sampleId = 0; sampleId < numSamples; sampleId++)
{
int rc;
/* get access unit from MP4 file */
buffer = NULL;
buffer_size = 0;
rc = mp4ff_read_sample(infile, track, sampleId, &buffer, &buffer_size);
if (rc == 0)
{
error_handler("Reading from MP4 file failed.\n");
NeAACDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 1;
}
sample_buffer = NeAACDecDecode(hDecoder, &frameInfo, buffer, buffer_size);
if (buffer)
free(buffer);
opt->progress_update((long)numSamples, sampleId);
/* open the sound file now that the number of channels are known */
if (first_time && !frameInfo.error)
{
if(opt->decode_mode == 0)
{
if (Set_WIN_Params (INVALID_FILEDESC, samplerate, SAMPLE_SIZE,
frameInfo.channels) < 0)
{
error_handler("\nCan't access %s\n", "WAVE OUT");
NeAACDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return (0);
}
}
else
{
aufile = open_audio_file(sndfile, samplerate, frameInfo.channels,
opt->output_format, opt->file_type, aacChannelConfig2wavexChannelMask(&frameInfo));
if (aufile == NULL)
{
NeAACDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 0;
}
}
first_time = 0;
}
if ((frameInfo.error == 0) && (frameInfo.samples > 0))
{
if(opt->decode_mode == 0)
WIN_Play_Samples((short*)sample_buffer, frameInfo.channels*frameInfo.samples);
else
write_audio_file(aufile, sample_buffer, frameInfo.samples, 0);
}
if (frameInfo.error > 0)
{
error_handler("Error: %s\n",
NeAACDecGetErrorMessage(frameInfo.error));
break;
}
if(stop_decoding)
break;
}
NeAACDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
if(opt->decode_mode == 0)
WIN_Audio_close();
else
{
if (!first_time)
close_audio_file(aufile);
}
return frameInfo.error;
}
static int
aac_init (DB_fileinfo_t *_info, DB_playItem_t *it) {
aac_info_t *info = (aac_info_t *)_info;
info->file = deadbeef->fopen (deadbeef->pl_find_meta (it, ":URI"));
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;
#if USE_MP4FF
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;
#else
info->mp4reader.open = aac_fs_open;
info->mp4reader.seek = aac_fs_seek;
info->mp4reader.read = aac_fs_read;
info->mp4reader.write = NULL;
info->mp4reader.close = aac_fs_close;
#endif
if (!info->file->vfs->is_streaming ()) {
#ifdef USE_MP4FF
trace ("aac_init: mp4ff_open_read %s\n", deadbeef->pl_find_meta (it, ":URI"));
info->mp4file = mp4ff_open_read (&info->mp4reader);
if (info->mp4file) {
int ntracks = mp4ff_total_tracks (info->mp4file);
if (ntracks > 0) {
trace ("m4a container detected, ntracks=%d\n", ntracks);
int i = -1;
unsigned char* buff = 0;
unsigned int buff_size = 0;
for (i = 0; i < ntracks; i++) {
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config (info->mp4file, i, &buff, &buff_size);
if(buff){
int rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
if(rc < 0)
continue;
break;
}
}
trace ("mp4 probe-buffer size: %d\n", buff_size);
if (i != ntracks && buff)
{
trace ("mp4 track: %d\n", i);
int samples = mp4ff_num_samples(info->mp4file, i);
info->mp4samples = samples;
info->mp4track = i;
// init mp4 decoding
info->dec = NeAACDecOpen ();
unsigned long srate;
unsigned char ch;
if (NeAACDecInit2(info->dec, buff, buff_size, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
free (buff);
return -1;
}
samplerate = srate;
channels = ch;
samples = (int64_t)samples * srate / mp4ff_time_scale (info->mp4file, i);
totalsamples = samples;
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (info->dec);
conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (info->dec, conf);
mp4AudioSpecificConfig mp4ASC;
if (NeAACDecAudioSpecificConfig(buff, buff_size, &mp4ASC) >= 0)
{
info->mp4framesize = 1024;
if (mp4ASC.frameLengthFlag == 1) {
info->mp4framesize = 960;
}
// if (mp4ASC.sbr_present_flag == 1) {
// info->mp4framesize *= 2;
// }
}
totalsamples *= info->mp4framesize;
duration = (float)totalsamples / samplerate;
}
else {
mp4ff_close (info->mp4file);
info->mp4file = NULL;
}
if (buff) {
free (buff);
}
}
else {
mp4ff_close (info->mp4file);
info->mp4file = NULL;
}
}
// {{{ libmp4v2 code
#else
trace ("aac_init: MP4ReadProvider %s\n", deadbeef->pl_find_meta (it, ":URI"));
info->mp4file = MP4ReadProvider (deadbeef->pl_find_meta (it, ":URI"), 0, &info->mp4reader);
info->mp4track = MP4FindTrackId(info->mp4file, 0, "audio", 0);
trace ("aac_init: MP4FindTrackId returned %d\n", info->mp4track);
if (info->mp4track >= 0) {
info->timescale = MP4GetTrackTimeScale(info->mp4file, info->mp4track);
u_int8_t* pConfig;
uint32_t configSize = 0;
bool res = MP4GetTrackESConfiguration(info->mp4file, info->mp4track, &pConfig, &configSize);
mp4AudioSpecificConfig mp4ASC;
int rc = AudioSpecificConfig(pConfig, configSize, &mp4ASC);
if (rc >= 0) {
_info->samplerate = mp4ASC.samplingFrequency;
_info->channels = MP4GetTrackAudioChannels (info->mp4file, info->mp4track);
totalsamples = MP4GetTrackNumberOfSamples (info->mp4file, info->mp4track) * 1024 * _info->channels;
// init mp4 decoding
info->dec = NeAACDecOpen ();
unsigned long srate;
unsigned char ch;
if (NeAACDecInit2(info->dec, pConfig, configSize, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
return -1;
}
samplerate = srate;
channels = ch;
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (info->dec);
conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (info->dec, conf);
mp4AudioSpecificConfig mp4ASC;
if (NeAACDecAudioSpecificConfig(pConfig, configSize, &mp4ASC) >= 0)
{
info->mp4framesize = 1024;
if (mp4ASC.frameLengthFlag == 1) {
info->mp4framesize = 960;
}
// if (mp4ASC.sbr_present_flag == 1) {
// info->mp4framesize *= 2;
// }
}
//totalsamples *= info->mp4framesize;
free (pConfig);
info->maxSampleSize = MP4GetTrackMaxSampleSize(info->mp4file, info->mp4track);
info->samplebuffer = malloc (info->maxSampleSize);
info->mp4sample = 1;
}
else {
MP4Close (info->mp4file);
info->mp4file = NULL;
}
}
else {
MP4Close (info->mp4file);
info->mp4file = NULL;
}
#endif
// }}}
if (!info->mp4file) {
trace ("mp4 track not found, looking for aac 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->mp4file) {
//trace ("NeAACDecGetCapabilities\n");
//unsigned long caps = NeAACDecGetCapabilities();
trace ("NeAACDecOpen\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;
}
}
trace ("totalsamples: %d, endsample: %d, samples-from-duration: %d\n", totalsamples-1, info->endsample, (int)deadbeef->pl_get_item_duration (it)*44100);
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;
}
// returns -1 for error, 0 for mp4, 1 for aac
int
aac_probe (DB_FILE *fp, const char *fname, MP4FILE_CB *cb, float *duration, int *samplerate, int *channels, int *totalsamples, int *mp4track, MP4FILE *pmp4) {
// try mp4
trace ("aac_probe: pos=%lld, junk=%d\n", deadbeef->ftell (fp), ((aac_info_t*)cb->user_data)->junk);
if (mp4track) {
*mp4track = -1;
}
if (*pmp4) {
*pmp4 = NULL;
}
*duration = -1;
#ifdef USE_MP4FF
trace ("mp4ff_open_read\n");
mp4ff_t *mp4 = mp4ff_open_read (cb);
#else
MP4FileHandle mp4 = MP4ReadProvider (fname, 0, cb);
#endif
if (!mp4) {
trace ("not an mp4 file\n");
return -1;
}
if (pmp4) {
*pmp4 = mp4;
}
#ifdef USE_MP4FF
int ntracks = mp4ff_total_tracks (mp4);
if (ntracks > 0) {
trace ("m4a container detected, ntracks=%d\n", ntracks);
int i = -1;
trace ("looking for mp4 data...\n");
int sr = -1;
unsigned char* buff = 0;
unsigned int buff_size = 0;
for (i = 0; i < ntracks; i++) {
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config(mp4, i, &buff, &buff_size);
if (buff) {
int rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
sr = mp4ASC.samplingFrequency;
if(rc < 0) {
free (buff);
buff = 0;
continue;
}
break;
}
}
if (i != ntracks && buff)
{
trace ("found audio track (%d)\n", i);
// init mp4 decoding
NeAACDecHandle dec = NeAACDecOpen ();
unsigned long srate;
unsigned char ch;
if (NeAACDecInit2(dec, buff, buff_size, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
goto error;
}
*samplerate = srate;
*channels = ch;
int samples = mp4ff_num_samples(mp4, i);
samples = (int64_t)samples * srate / mp4ff_time_scale (mp4, i);
int tsamples = samples;
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (dec);
conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (dec, conf);
mp4AudioSpecificConfig mp4ASC;
int mp4framesize;
if (NeAACDecAudioSpecificConfig(buff, buff_size, &mp4ASC) >= 0)
{
mp4framesize = 1024;
if (mp4ASC.frameLengthFlag == 1) {
mp4framesize = 960;
}
// commented this out, since it fixes double-duration bug on
// some mp4 files
//if (mp4ASC.sbr_present_flag == 1) {
// mp4framesize *= 2;
//}
}
else {
trace ("NeAACDecAudioSpecificConfig failed, can't get mp4framesize\n");
goto error;
}
tsamples *= mp4framesize;
trace ("mp4 nsamples=%d, samplerate=%d, timescale=%d, duration=%lld\n", samples, *samplerate, mp4ff_time_scale(mp4, i), mp4ff_get_track_duration(mp4, i));
*duration = (float)tsamples / (*samplerate);
trace ("mp4 duration: %f (tsamples %d/samplerate %d)\n", *duration, tsamples, *samplerate);
NeAACDecClose (dec);
if (totalsamples) {
*totalsamples = tsamples;
}
if (mp4track) {
*mp4track = i;
}
if (!*pmp4) {
mp4ff_close (mp4);
}
return 0;
error:
NeAACDecClose (dec);
free (buff);
if (!*pmp4) {
mp4ff_close (mp4);
}
return -1;
}
else {
trace ("audio track not found\n");
mp4ff_close (mp4);
mp4 = NULL;
}
if (buff) {
free (buff);
buff = NULL;
}
}
#else
MP4FileHandle mp4File = mp4;
MP4TrackId trackId = MP4FindTrackId(mp4File, 0, "audio", 0);
trace ("trackid: %d\n", trackId);
uint32_t timeScale = MP4GetTrackTimeScale(mp4File, trackId);
MP4Duration trackDuration = MP4GetTrackDuration(mp4File, trackId);
MP4SampleId numSamples = MP4GetTrackNumberOfSamples(mp4File, trackId);
u_int8_t* pConfig;
uint32_t configSize = 0;
bool res = MP4GetTrackESConfiguration(mp4File, trackId, &pConfig, &configSize);
if (res && pConfig) {
mp4AudioSpecificConfig mp4ASC;
int rc = AudioSpecificConfig(pConfig, configSize, &mp4ASC);
free (pConfig);
if (rc >= 0) {
*samplerate = mp4ASC.samplingFrequency;
*channels = MP4GetTrackAudioChannels (mp4File, trackId);
// int64_t duration = MP4ConvertFromTrackDuration (mp4File, trackId, trackDuration, timeScale);
int samples = MP4GetTrackNumberOfSamples (mp4File, trackId) * 1024 * (*channels);
trace ("mp4 nsamples=%d, timescale=%d, samplerate=%d\n", samples, timeScale, *samplerate);
*duration = (float)samples / (*samplerate);
if (totalsamples) {
*totalsamples = samples;
}
if (mp4track) {
*mp4track = trackId;
}
if (!*pmp4) {
MP4Close (mp4);
}
return 0;
}
}
#endif
if (*pmp4) {
*pmp4 = NULL;
}
if (mp4) {
#if USE_MP4FF
mp4ff_close (mp4);
#else
MP4Close (mp4);
#endif
mp4 = NULL;
}
trace ("mp4 track not found, looking for aac stream...\n");
// not an mp4, try raw aac
#if USE_MP4FF
deadbeef->rewind (fp);
#endif
if (parse_aac_stream (fp, samplerate, channels, duration, totalsamples) == -1) {
trace ("aac stream not found\n");
return -1;
}
trace ("found aac stream\n");
return 1;
}
static void *mp4Decode(void *args)
{
FILE* mp4file;
pthread_mutex_lock(&mutex);
seekPosition = -1;
bPlaying = TRUE;
if(!(mp4file = fopen(args, "rb"))){
g_print("MP4!AAC - Can't open file\n");
g_free(args);
bPlaying = FALSE;
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
mp4_get_file_type(mp4file);
fseek(mp4file, 0, SEEK_SET);
if(mp4cfg.file_type == FILE_MP4){// We are reading a MP4 file
mp4ff_callback_t* mp4cb;
mp4ff_t* infile;
gint mp4track;
mp4cb = getMP4FF_cb(mp4file);
if(!(infile = mp4ff_open_read(mp4cb))){
g_print("MP4 - Can't open file\n");
goto end;
}
if((mp4track = getAACTrack(infile)) < 0){
/*
* TODO: check here for others Audio format.....
*
*/
g_print("Unsupported Audio track type\n");
g_free(args);
fclose(mp4file);
bPlaying = FALSE;
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}else{
NeAACDecHandle decoder;
unsigned char *buffer = NULL;
guint bufferSize = 0;
gulong samplerate;
guchar channels;
//guint avgBitrate;
//MP4Duration duration;
int msDuration;
int numSamples;
int sampleID = 0;
unsigned int framesize;
mp4AudioSpecificConfig mp4ASC;
gchar *xmmstitle;
decoder = NeAACDecOpen();
mp4ff_get_decoder_config(infile, mp4track, &buffer, &bufferSize);
if(NeAACDecInit2(decoder, buffer, bufferSize, &samplerate, &channels)<0){
goto end;
}
if(buffer){
framesize = 1024;
if(NeAACDecAudioSpecificConfig(buffer, bufferSize, &mp4ASC) >= 0){
if(mp4ASC.frameLengthFlag == 1) framesize = 960;
if(mp4ASC.sbr_present_flag == 1) framesize *= 2;
}
g_free(buffer);
}
if(channels == 0){
g_print("Number of Channels not supported\n");
goto end;
}
//duration = MP4GetTrackDuration(mp4file, mp4track);
//msDuration = MP4ConvertFromTrackDuration(mp4file, mp4track,
// duration,MP4_MSECS_TIME_SCALE);
//msDuration = mp4ff_get_track_duration(infile, mp4track);
//printf("%d\n", msDuration);
//numSamples = MP4GetTrackNumberOfSamples(mp4file, mp4track);
numSamples = mp4ff_num_samples(infile, mp4track);
{
float f = 1024.0;
if(mp4ASC.sbr_present_flag == 1)
f = f * 2.0;
msDuration = ((float)numSamples*(float)(f-1.0)/
(float)samplerate)*1000;
}
xmmstitle = getMP4title(infile, args);
mp4_ip.output->open_audio(FMT_S16_NE, samplerate, channels);
mp4_ip.output->flush(0);
mp4_ip.set_info(xmmstitle, msDuration, -1, samplerate/1000, channels);
g_print("MP4 - %d channels @ %ld Hz\n", channels, samplerate);
while(bPlaying){
void* sampleBuffer;
faacDecFrameInfo frameInfo;
gint rc;
if(seekPosition!=-1){
/*
duration = MP4ConvertToTrackDuration(mp4file,
mp4track,
seekPosition*1000,
MP4_MSECS_TIME_SCALE);
sampleID = MP4GetSampleIdFromTime(mp4file, mp4track, duration, 0);
*/
float f = 1024.0;
if(mp4ASC.sbr_present_flag == 1)
f = f * 2.0;
sampleID = (float)seekPosition*(float)samplerate/(float)(f-1.0);
mp4_ip.output->flush(seekPosition*1000);
seekPosition = -1;
}
buffer=NULL;
bufferSize=0;
rc = mp4ff_read_sample(infile, mp4track, sampleID++,
&buffer, &bufferSize);
//g_print("%d/%d\n", sampleID-1, numSamples);
if((rc==0) || (buffer== NULL)){
g_print("MP4: read error\n");
sampleBuffer = NULL;
sampleID=0;
mp4_ip.output->buffer_free();
goto end;
}else{
sampleBuffer = NeAACDecDecode(decoder, &frameInfo, buffer, bufferSize);
if(frameInfo.error > 0){
g_print("MP4: %s\n",
faacDecGetErrorMessage(frameInfo.error));
goto end;
}
if(buffer){
g_free(buffer); buffer=NULL; bufferSize=0;
}
while(bPlaying && mp4_ip.output->buffer_free()<frameInfo.samples<<1)
xmms_usleep(30000);
}
mp4_ip.add_vis_pcm(mp4_ip.output->written_time(),
FMT_S16_NE,
channels,
frameInfo.samples<<1,
sampleBuffer);
mp4_ip.output->write_audio(sampleBuffer, frameInfo.samples<<1);
if(sampleID >= numSamples){
break;
}
}
while(bPlaying && mp4_ip.output->buffer_playing() && mp4_ip.output->buffer_free()){
xmms_usleep(10000);
}
end:
mp4_ip.output->close_audio();
g_free(args);
NeAACDecClose(decoder);
if(infile) mp4ff_close(infile);
if(mp4cb) g_free(mp4cb);
bPlaying = FALSE;
fclose(mp4file);
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
}else{
// WE ARE READING AN AAC FILE
FILE *file = NULL;
NeAACDecHandle decoder = 0;
guchar *buffer = 0;
gulong bufferconsumed = 0;
gulong samplerate = 0;
guchar channels;
gulong buffervalid = 0;
TitleInput* input;
gchar *temp = g_strdup(args);
gchar *ext = strrchr(temp, '.');
gchar *xmmstitle = NULL;
NeAACDecConfigurationPtr config;
if((file = fopen(args, "rb")) == 0){
g_print("AAC: can't find file %s\n", args);
bPlaying = FALSE;
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
if((decoder = NeAACDecOpen()) == NULL){
g_print("AAC: Open Decoder Error\n");
fclose(file);
bPlaying = FALSE;
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
config = NeAACDecGetCurrentConfiguration(decoder);
config->useOldADTSFormat = 0;
NeAACDecSetConfiguration(decoder, config);
if((buffer = g_malloc(BUFFER_SIZE)) == NULL){
g_print("AAC: error g_malloc\n");
fclose(file);
bPlaying = FALSE;
NeAACDecClose(decoder);
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
if((buffervalid = fread(buffer, 1, BUFFER_SIZE, file))==0){
g_print("AAC: Error reading file\n");
g_free(buffer);
fclose(file);
bPlaying = FALSE;
NeAACDecClose(decoder);
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
XMMS_NEW_TITLEINPUT(input);
input->file_name = g_basename(temp);
input->file_ext = ext ? ext+1 : NULL;
input->file_path = temp;
if(!strncmp(buffer, "ID3", 3)){
gint size = 0;
fseek(file, 0, SEEK_SET);
size = (buffer[6]<<21) | (buffer[7]<<14) | (buffer[8]<<7) | buffer[9];
size+=10;
fread(buffer, 1, size, file);
buffervalid = fread(buffer, 1, BUFFER_SIZE, file);
}
xmmstitle = xmms_get_titlestring(xmms_get_gentitle_format(), input);
if(xmmstitle == NULL)
xmmstitle = g_strdup(input->file_name);
if(temp) g_free(temp);
if(input->performer) g_free(input->performer);
if(input->album_name) g_free(input->album_name);
if(input->track_name) g_free(input->track_name);
if(input->genre) g_free(input->genre);
g_free(input);
bufferconsumed = NeAACDecInit(decoder,
buffer,
buffervalid,
&samplerate,
&channels);
if(mp4_ip.output->open_audio(FMT_S16_NE,samplerate,channels) == FALSE){
g_print("AAC: Output Error\n");
g_free(buffer); buffer=0;
faacDecClose(decoder);
fclose(file);
mp4_ip.output->close_audio();
/*
if(positionTable){
g_free(positionTable); positionTable=0;
}
*/
g_free(xmmstitle);
bPlaying = FALSE;
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
//if(bSeek){
//mp4_ip.set_info(xmmstitle, lenght*1000, -1, samplerate, channels);
//}else{
mp4_ip.set_info(xmmstitle, -1, -1, samplerate, channels);
//}
mp4_ip.output->flush(0);
while(bPlaying && buffervalid > 0){
NeAACDecFrameInfo finfo;
unsigned long samplesdecoded;
char* sample_buffer = NULL;
/*
if(bSeek && seekPosition!=-1){
fseek(file, positionTable[seekPosition], SEEK_SET);
bufferconsumed=0;
buffervalid = fread(buffer, 1, BUFFER_SIZE, file);
aac_ip.output->flush(seekPosition*1000);
seekPosition=-1;
}
*/
if(bufferconsumed > 0){
memmove(buffer, &buffer[bufferconsumed], buffervalid-bufferconsumed);
buffervalid -= bufferconsumed;
buffervalid += fread(&buffer[buffervalid], 1,
BUFFER_SIZE-buffervalid, file);
bufferconsumed = 0;
}
sample_buffer = NeAACDecDecode(decoder, &finfo, buffer, buffervalid);
if(finfo.error){
config = NeAACDecGetCurrentConfiguration(decoder);
if(config->useOldADTSFormat != 1){
NeAACDecClose(decoder);
decoder = NeAACDecOpen();
config = NeAACDecGetCurrentConfiguration(decoder);
config->useOldADTSFormat = 1;
NeAACDecSetConfiguration(decoder, config);
finfo.bytesconsumed=0;
finfo.samples = 0;
NeAACDecInit(decoder,
buffer,
buffervalid,
&samplerate,
&channels);
}else{
g_print("FAAD2 Warning %s\n", NeAACDecGetErrorMessage(finfo.error));
buffervalid = 0;
}
}
bufferconsumed += finfo.bytesconsumed;
samplesdecoded = finfo.samples;
if((samplesdecoded<=0) && !sample_buffer){
g_print("AAC: error sample decoding\n");
continue;
}
while(bPlaying && mp4_ip.output->buffer_free() < (samplesdecoded<<1)){
xmms_usleep(10000);
}
mp4_ip.add_vis_pcm(mp4_ip.output->written_time(),
FMT_S16_LE, channels,
samplesdecoded<<1, sample_buffer);
mp4_ip.output->write_audio(sample_buffer, samplesdecoded<<1);
}
while(bPlaying && mp4_ip.output->buffer_playing()){
xmms_usleep(10000);
}
mp4_ip.output->buffer_free();
mp4_ip.output->close_audio();
bPlaying = FALSE;
g_free(buffer);
NeAACDecClose(decoder);
g_free(xmmstitle);
fclose(file);
seekPosition = -1;
/*
if(positionTable){
g_free(positionTable); positionTable=0;
}
*/
bPlaying = FALSE;
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
}
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;
}
// returns -1 for error, 0 for mp4, 1 for aac
int
aac_probe (DB_FILE *fp, const char *fname, MP4FILE_CB *cb, float *duration, int *samplerate, int *channels, int *totalsamples, int *mp4track, MP4FILE *pmp4) {
// try mp4
if (mp4track) {
*mp4track = -1;
}
if (*pmp4) {
*pmp4 = NULL;
}
*duration = -1;
#ifdef USE_MP4FF
mp4ff_t *mp4 = mp4ff_open_read (cb);
#else
MP4FileHandle mp4 = MP4ReadProvider (fname, 0, cb);
#endif
if (!mp4) {
trace ("not an mp4 file\n");
return -1;
}
if (pmp4) {
*pmp4 = mp4;
}
#ifdef USE_MP4FF
int ntracks = mp4ff_total_tracks (mp4);
if (ntracks > 0) {
trace ("m4a container detected, ntracks=%d\n", ntracks);
int i = -1;
trace ("looking for mp4 data...\n");
int sr = -1;
for (i = 0; i < ntracks; i++) {
unsigned char* buff = 0;
unsigned int buff_size = 0;
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config(mp4, i, &buff, &buff_size);
if(buff){
int rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
sr = mp4ASC.samplingFrequency;
free(buff);
if(rc < 0)
continue;
break;
}
}
if (i != ntracks)
{
trace ("mp4 track: %d\n", i);
if (sr != -1) {
*samplerate = sr;
}
else {
*samplerate = mp4ff_get_sample_rate (mp4, i);
}
*channels = mp4ff_get_channel_count (mp4, i);
int samples = mp4ff_num_samples(mp4, i) * 1024;
samples = (int64_t)samples * (*samplerate) / mp4ff_time_scale (mp4, i);
trace ("mp4 nsamples=%d, samplerate=%d, timescale=%d, duration=%lld\n", samples, *samplerate, mp4ff_time_scale(mp4, i), mp4ff_get_track_duration(mp4, i));
*duration = (float)samples / (*samplerate);
if (totalsamples) {
*totalsamples = samples;
}
if (mp4track) {
*mp4track = i;
}
if (!*pmp4) {
mp4ff_close (mp4);
}
return 0;
}
}
#else
MP4FileHandle mp4File = mp4;
MP4TrackId trackId = MP4FindTrackId(mp4File, 0, "audio", 0);
trace ("trackid: %d\n", trackId);
uint32_t timeScale = MP4GetTrackTimeScale(mp4File, trackId);
MP4Duration trackDuration = MP4GetTrackDuration(mp4File, trackId);
MP4SampleId numSamples = MP4GetTrackNumberOfSamples(mp4File, trackId);
u_int8_t* pConfig;
uint32_t configSize = 0;
bool res = MP4GetTrackESConfiguration(mp4File, trackId, &pConfig, &configSize);
if (res && pConfig) {
mp4AudioSpecificConfig mp4ASC;
int rc = AudioSpecificConfig(pConfig, configSize, &mp4ASC);
free (pConfig);
if (rc >= 0) {
*samplerate = mp4ASC.samplingFrequency;
*channels = MP4GetTrackAudioChannels (mp4File, trackId);
// int64_t duration = MP4ConvertFromTrackDuration (mp4File, trackId, trackDuration, timeScale);
int samples = MP4GetTrackNumberOfSamples (mp4File, trackId) * 1024 * (*channels);
trace ("mp4 nsamples=%d, timescale=%d, samplerate=%d\n", samples, timeScale, *samplerate);
*duration = (float)samples / (*samplerate);
if (totalsamples) {
*totalsamples = samples;
}
if (mp4track) {
*mp4track = trackId;
}
if (!*pmp4) {
MP4Close (mp4);
}
return 0;
}
}
#endif
if (*pmp4) {
*pmp4 = NULL;
}
if (mp4) {
#if USE_MP4FF
mp4ff_close (mp4);
#else
MP4Close (mp4);
#endif
mp4 = NULL;
}
trace ("mp4 track not found, looking for aac stream...\n");
// not an mp4, try raw aac
#if USE_MP4FF
deadbeef->rewind (fp);
#endif
if (parse_aac_stream (fp, samplerate, channels, duration, totalsamples) == -1) {
trace ("aac stream not found\n");
return -1;
}
trace ("found aac stream\n");
return 1;
}
int fdpl_decode_MP4(const char *file_path, size_t &ch, size_t &sr, size_t &samples, std::vector<float> *ch1, std::vector<float> *ch2)
{
unsigned int track;
uint32_t samplerate;//these for init, we prefer to take the ones at frameInfo
unsigned char channels;
void *sample_buffer;
mp4ff_t *infile;
FILE *mp4File;
int sampleId, numSamples;
faacDecHandle hDecoder;
faacDecFrameInfo frameInfo;
unsigned char *buffer;
unsigned int buffer_size;
/* initialise the callback structure */
mp4ff_callback_t *mp4cb;
mp4cb = (mp4ff_callback_t *)malloc(sizeof(mp4ff_callback_t));
mp4File = fopen(file_path, "rb");
mp4cb->read = read_callback;
mp4cb->seek = seek_callback;
mp4cb->user_data = mp4File;
infile = mp4ff_open_read(mp4cb);
if (!infile)
{
/* unable to open file */
std::cerr<<"Error opening file "<< file_path <<std::endl;
return 1;
}
if ((track = GetAACTrack(infile)) < 0)
{
std::cerr<<"Unable to find correct AAC sound track in the MP4 file"<<std::endl;
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 1;
}
buffer = NULL;
buffer_size = 0;
mp4ff_get_decoder_config(infile, track, &buffer, &buffer_size);
hDecoder = faacDecOpen();
if(faacDecInit2(hDecoder, buffer, buffer_size, &samplerate, &channels) < 0)
{
/* If some error initializing occured, skip the file */
std::cerr<<"Error initializing decoder library"<<std::endl;
faacDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 1;
}
if (buffer)
free(buffer);
numSamples = mp4ff_num_samples(infile, track);
samples = 0;
//firstTime = 1;
for (sampleId = 0; sampleId < numSamples; sampleId++)
{
int rc;
/* get access unit from MP4 file */
buffer = NULL;
buffer_size = 0;
rc = mp4ff_read_sample(infile, track, sampleId, &buffer, &buffer_size);
if (rc == 0)
{
std::cerr<<"error while decoding"<<std::endl;
faacDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return 1;
}
sample_buffer = faacDecDecode(hDecoder, &frameInfo, buffer, buffer_size);
if (buffer)
free(buffer);
if ((frameInfo.error == 0) && (frameInfo.samples > 0) && (frameInfo.channels < 3))
{
size_t samples_channel = (size_t)frameInfo.samples/(size_t)frameInfo.channels;
samples += samples_channel;
float *pcm;
pcm = (float *)sample_buffer;
for(size_t i=0; i<samples_channel; i++){
//writing the samples of each channel in separate float vectors
for(size_t j=0; j<frameInfo.channels; j++){
if(j==0){
ch1 -> push_back(pcm[i*frameInfo.channels+j]);
}else if(j==1){
ch2 -> push_back(pcm[i*frameInfo.channels+j]);
}else{
std::cerr<<"Unexpected number of channels: "<<j<<std::endl;
return -1;
}
}
}
}
if (frameInfo.error > 0)
{
std::cerr<<"error: "<<faacDecGetErrorMessage(frameInfo.error)<<std::endl;
break;
}
}
ch = frameInfo.channels;
sr = frameInfo.samplerate;
faacDecClose(hDecoder);
mp4ff_close(infile);
free(mp4cb);
fclose(mp4File);
return frameInfo.error;
}
