static gint
xmms_mp4_read (xmms_xform_t *xform, xmms_sample_t *buf, gint len, xmms_error_t *err)
{
xmms_mp4_data_t *data;
guint size, bytes_read = 0;
data = xmms_xform_private_data_get (xform);
g_return_val_if_fail (data, -1);
size = MIN (data->outbuf->len, len);
while (size == 0) {
guchar *tmpbuf;
guint tmpbuflen;
gint duration, offset;
if (data->sampleid >= data->numsamples) {
XMMS_DBG ("MP4 EOF");
return 0;
}
bytes_read = mp4ff_read_sample (data->mp4ff, data->track,
data->sampleid, &tmpbuf,
&tmpbuflen);
offset = mp4ff_get_sample_offset (data->mp4ff, data->track,
data->sampleid);
duration = mp4ff_get_sample_duration (data->mp4ff, data->track,
data->sampleid);
data->sampleid++;
xmms_xform_auxdata_set_int (xform, "frame_offset", offset);
xmms_xform_auxdata_set_int (xform, "frame_duration", duration);
if (bytes_read > 0) {
g_string_append_len (data->outbuf, (gchar *) tmpbuf, tmpbuflen);
g_free (tmpbuf);
}
size = MIN (data->outbuf->len, len);
}
memcpy (buf, data->outbuf->str, size);
g_string_erase (data->outbuf, 0, size);
return size;
}
// Same as Faad.decode (Faad.Mp4.read_sample) but more efficient. Share code?
CAMLprim value ocaml_faad_mp4_decode(value m, value track, value sample, value dh)
{
CAMLparam4(m, track, sample, dh);
CAMLlocal1(outbuf);
mp4_t *mp = Mp4_val(m);
int t = Int_val(track);
int s = Int_val(sample);
NeAACDecHandle dec = Dec_val(dh);
NeAACDecFrameInfo frameInfo;
unsigned char *inbuf = NULL;
unsigned int inbuflen = 0;
float *data;
int c, i, ret;
caml_enter_blocking_section();
ret = mp4ff_read_sample(mp->ff, t, s, &inbuf, &inbuflen);
caml_leave_blocking_section();
check_err(ret);
caml_enter_blocking_section();
data = NeAACDecDecode(dec, &frameInfo, inbuf, inbuflen);
caml_leave_blocking_section();
free(inbuf);
if (!data)
caml_raise_constant(*caml_named_value("ocaml_faad_exn_failed"));
if (frameInfo.error != 0)
caml_raise_with_arg(*caml_named_value("ocaml_faad_exn_error"), Val_int(frameInfo.error));
outbuf = caml_alloc_tuple(frameInfo.channels);
for(c = 0; c < frameInfo.channels; c++)
Store_field(outbuf, c, caml_alloc(frameInfo.samples / frameInfo.channels * Double_wosize, Double_array_tag));
for(i = 0; i < frameInfo.samples; i++)
Store_double_field(Field(outbuf, i % frameInfo.channels), i / frameInfo.channels, data[i]);
CAMLreturn(outbuf);
}
CAMLprim value ocaml_faad_mp4_read_sample(value m, value track, value sample)
{
CAMLparam3(m, track, sample);
CAMLlocal1(ans);
mp4_t *mp = Mp4_val(m);
int t = Int_val(track);
int s = Int_val(sample);
unsigned char *buf = NULL;
unsigned int buflen = 0;
int ret;
caml_enter_blocking_section();
ret = mp4ff_read_sample(mp->ff, t, s, &buf, &buflen);
caml_leave_blocking_section();
check_err(ret);
ans = caml_alloc_string(buflen);
memcpy(String_val(ans), buf, buflen);
free(buf);
CAMLreturn(ans);
}
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_read (DB_fileinfo_t *_info, char *bytes, int size) {
aac_info_t *info = (aac_info_t *)_info;
if (info->eof) {
trace ("aac_read: received call after eof\n");
return 0;
}
int samplesize = _info->fmt.channels * _info->fmt.bps / 8;
if (!info->file->vfs->is_streaming ()) {
if (info->currentsample + size / samplesize > info->endsample) {
size = (info->endsample - info->currentsample + 1) * samplesize;
if (size <= 0) {
trace ("aac_read: eof (current=%d, total=%d)\n", info->currentsample, info->endsample);
return 0;
}
}
}
int initsize = size;
while (size > 0) {
if (info->skipsamples > 0 && info->out_remaining > 0) {
int skip = min (info->out_remaining, info->skipsamples);
if (skip < info->out_remaining) {
memmove (info->out_buffer, info->out_buffer + skip * samplesize, (info->out_remaining - skip) * samplesize);
}
info->out_remaining -= skip;
info->skipsamples -= skip;
}
if (info->out_remaining > 0) {
int n = size / samplesize;
n = min (info->out_remaining, n);
char *src = info->out_buffer;
if (info->noremap) {
memcpy (bytes, src, n * samplesize);
bytes += n * samplesize;
src += n * samplesize;
}
else {
int i, j;
if (info->remap[0] == -1) {
// build remap mtx
// FIXME: should build channelmask 1st; then remap based on channelmask
for (i = 0; i < _info->fmt.channels; i++) {
switch (info->frame_info.channel_position[i]) {
case FRONT_CHANNEL_CENTER:
trace ("FC->%d\n", i);
info->remap[2] = i;
break;
case FRONT_CHANNEL_LEFT:
trace ("FL->%d\n", i);
info->remap[0] = i;
break;
case FRONT_CHANNEL_RIGHT:
trace ("FR->%d\n", i);
info->remap[1] = i;
break;
case SIDE_CHANNEL_LEFT:
trace ("SL->%d\n", i);
info->remap[6] = i;
break;
case SIDE_CHANNEL_RIGHT:
trace ("SR->%d\n", i);
info->remap[7] = i;
break;
case BACK_CHANNEL_LEFT:
trace ("RL->%d\n", i);
info->remap[4] = i;
break;
case BACK_CHANNEL_RIGHT:
trace ("RR->%d\n", i);
info->remap[5] = i;
break;
case BACK_CHANNEL_CENTER:
trace ("BC->%d\n", i);
info->remap[8] = i;
break;
case LFE_CHANNEL:
trace ("LFE->%d\n", i);
info->remap[3] = i;
break;
default:
trace ("aac: unknown ch(%d)->%d\n", info->frame_info.channel_position[i], i);
break;
}
}
for (i = 0; i < _info->fmt.channels; i++) {
trace ("%d ", info->remap[i]);
}
trace ("\n");
if (info->remap[0] == -1) {
info->remap[0] = 0;
}
if ((_info->fmt.channels == 1 && info->remap[0] == FRONT_CHANNEL_CENTER)
|| (_info->fmt.channels == 2 && info->remap[0] == FRONT_CHANNEL_LEFT && info->remap[1] == FRONT_CHANNEL_RIGHT)) {
info->noremap = 1;
}
}
for (i = 0; i < n; i++) {
for (j = 0; j < _info->fmt.channels; j++) {
((int16_t *)bytes)[j] = ((int16_t *)src)[info->remap[j]];
}
src += samplesize;
bytes += samplesize;
}
}
size -= n * samplesize;
if (n == info->out_remaining) {
info->out_remaining = 0;
}
else {
memmove (info->out_buffer, src, (info->out_remaining - n) * samplesize);
info->out_remaining -= n;
}
continue;
}
char *samples = NULL;
if (info->mp4file) {
if (info->mp4sample >= info->mp4samples) {
break;
}
unsigned char *buffer = NULL;
int buffer_size = 0;
#ifdef USE_MP4FF
int rc = mp4ff_read_sample (info->mp4file, info->mp4track, info->mp4sample, &buffer, &buffer_size);
if (rc == 0) {
trace ("mp4ff_read_sample failed\n");
info->eof = 1;
break;
}
#else
buffer = info->samplebuffer;
buffer_size = info->maxSampleSize;
MP4Timestamp sampleTime;
MP4Duration sampleDuration;
MP4Duration sampleRenderingOffset;
bool isSyncSample;
MP4ReadSample (info->mp4file, info->mp4track, info->mp4sample, &buffer, &buffer_size, &sampleTime, &sampleDuration, &sampleRenderingOffset, &isSyncSample);
// convert timestamp and duration from track time to milliseconds
u_int64_t myTime = MP4ConvertFromTrackTimestamp (info->mp4file, info->mp4track,
sampleTime, MP4_MSECS_TIME_SCALE);
u_int64_t myDuration = MP4ConvertFromTrackDuration (info->mp4file, info->mp4track,
sampleDuration, MP4_MSECS_TIME_SCALE);
#endif
info->mp4sample++;
samples = NeAACDecDecode(info->dec, &info->frame_info, buffer, buffer_size);
if (buffer) {
free (buffer);
}
if (!samples) {
break;
}
}
else {
if (info->remaining < AAC_BUFFER_SIZE) {
trace ("fread from offs %lld\n", deadbeef->ftell (info->file));
size_t res = deadbeef->fread (info->buffer + info->remaining, 1, AAC_BUFFER_SIZE-info->remaining, info->file);
info->remaining += res;
trace ("remain: %d\n", info->remaining);
if (!info->remaining) {
break;
}
}
trace ("NeAACDecDecode %d bytes\n", info->remaining)
samples = NeAACDecDecode (info->dec, &info->frame_info, info->buffer, info->remaining);
trace ("samples =%p\n", samples);
if (!samples) {
trace ("NeAACDecDecode failed with error %s (%d), consumed=%d\n", NeAACDecGetErrorMessage(info->frame_info.error), (int)info->frame_info.error, info->frame_info.bytesconsumed);
if (info->num_errors > 10) {
trace ("NeAACDecDecode failed %d times, interrupting\n", info->num_errors);
break;
}
info->num_errors++;
info->remaining = 0;
continue;
}
info->num_errors=0;
int consumed = info->frame_info.bytesconsumed;
if (consumed > info->remaining) {
trace ("NeAACDecDecode consumed more than available! wtf?\n");
break;
}
if (consumed == info->remaining) {
info->remaining = 0;
}
else if (consumed > 0) {
memmove (info->buffer, info->buffer + consumed, info->remaining - consumed);
info->remaining -= consumed;
}
}
if (info->frame_info.samples > 0) {
memcpy (info->out_buffer, samples, info->frame_info.samples * 2);
info->out_remaining = info->frame_info.samples / info->frame_info.channels;
}
}
info->currentsample += (initsize-size) / samplesize;
return initsize-size;
}
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;
}
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;
}
