AACDecoder::AACDecoder(Common::SeekableReadStream *extraData, bool disposeExtraData) {
// Open the library
_handle = NeAACDecOpen();
// Configure the library to our needs
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(_handle);
conf->outputFormat = FAAD_FMT_16BIT; // We only support 16bit audio
conf->downMatrix = 1; // Convert from 5.1 to stereo if required
NeAACDecSetConfiguration(_handle, conf);
// Copy the extra data to a buffer
extraData->seek(0);
byte *extraDataBuf = new byte[extraData->size()];
extraData->read(extraDataBuf, extraData->size());
// Initialize with our extra data
// NOTE: This code assumes the extra data is coming from an MPEG-4 file!
int err = NeAACDecInit2(_handle, extraDataBuf, extraData->size(), &_rate, &_channels);
delete[] extraDataBuf;
if (err < 0)
throw Common::Exception("Could not initialize AAC decoder: %s", NeAACDecGetErrorMessage(err));
if (disposeExtraData)
delete extraData;
}
int aac_init(struct sp* env){
//initialize the aac specific structures
struct aac_data* data = malloc(sizeof(struct aac_data)); //allocate private structures
int buffer_size = FAAD_MIN_STREAMSIZE*8; //formerly used in the decode call
//might not be necessary, it's the minimum amount of data needed to get the decoder to do something
//hopefully faad acts like lame and internally buffers input until it can make a frame.
//if not we'll need to internally buffer, by holding a buffer_size sized chunk of memory in aac_data
//and then filling it
int cap = NeAACDecGetCapabilities(); //we should do some bulletproofing here, but we won't now
data->hAac = NeAACDecOpen();
//Configure the decoder
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(data->hAac);
conf->defObjectType = 2; //aac "MAIN"
conf->defSampleRate = 44100;
conf->outputFormat = 1;
conf->downMatrix = 1;
NeAACDecSetConfiguration(data->hAac, conf); //set the stuff
// Initialise the library using one of the initialization functions
unsigned long samplerate;
unsigned char channels;
int offset = NeAACDecInit(data->hAac, (unsigned char*)env->input, env->size, &samplerate, &channels);
if (offset != 0) { //now how do i tell sp from here that audio data starts at index
env->p.offset = offset; //communicate offset
return SP_ABORT; //do something to notify of error
}
//shutup -Wunused-variable... i'll use them eventually
(void)buffer_size;
(void)cap;
env->private_data = data;
return SP_OK;
}
bool TaudioCodecLibFAAD::init(const CMediaType &mt)
{
dll = new Tdll(dllname, config);
dll->loadFunction(NeAACDecOpen, "NeAACDecOpen");
dll->loadFunction(NeAACDecClose, "NeAACDecClose");
dll->loadFunction(NeAACDecInit2, "NeAACDecInit2");
dll->loadFunction(NeAACDecAudioSpecificConfig, "NeAACDecAudioSpecificConfig");
dll->loadFunction(NeAACDecDecode, "NeAACDecDecode");
dll->loadFunction(NeAACDecGetErrorMessage, "NeAACDecGetErrorMessage");
dll->loadFunction(NeAACDecGetCurrentConfiguration, "NeAACDecGetCurrentConfiguration");
dll->loadFunction(NeAACDecSetConfiguration, "NeAACDecSetConfiguration");
if (dll->ok) {
m_decHandle = NeAACDecOpen();
unsigned long SamplesPerSec = 0;
unsigned char channels = 0;
Textradata extradata(mt);
if (NeAACDecInit2(m_decHandle, extradata.data, (unsigned long)extradata.size, &SamplesPerSec, &channels) < 0) {
return false;
}
fmt.freq = SamplesPerSec;
fmt.setChannels(channels);
NeAACDecAudioSpecificConfig(extradata.data, (unsigned long)extradata.size, &info);
NeAACDecConfigurationPtr c = NeAACDecGetCurrentConfiguration(m_decHandle);
c->outputFormat = FAAD_FMT_FLOAT;
fmt.sf = TsampleFormat::SF_FLOAT32;
NeAACDecSetConfiguration(m_decHandle, c);
inited = true;
return true;
} else {
return false;
}
}
CAMLprim value ocaml_faad_open(value unit)
{
CAMLparam0();
CAMLlocal1(ret);
NeAACDecHandle dh = NeAACDecOpen();
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(dh);
conf->outputFormat = FAAD_FMT_FLOAT;
NeAACDecSetConfiguration(dh, conf);
ret = caml_alloc_custom(&faad_dec_ops, sizeof(NeAACDecHandle), 0, 1);
Dec_val(ret) = dh;
CAMLreturn(ret);
}
static long aacd_faad_start( AACDCommonInfo *cinfo, void *ext, unsigned char *buffer, unsigned long buffer_size)
{
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration( ext );
conf->outputFormat = FAAD_FMT_16BIT;
conf->downMatrix = 1;
//conf->useOldADTSFormat = 1;
NeAACDecSetConfiguration( ext, conf);
AACD_DEBUG( "start() buffer=%d size=%d", (*(unsigned long*)buffer), buffer_size );
long ret = NeAACDecInit( ext, buffer, buffer_size, &cinfo->samplerate, &cinfo->channels );
if (ret < 0) AACD_ERROR( "NeAACDecInit failed err=%d", ret );
return ret;
}
/*****************************************************************************
* DecodeBlock:
*****************************************************************************/
static block_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
block_t *p_block;
if( !pp_block || !*pp_block ) return NULL;
p_block = *pp_block;
*pp_block = NULL;
if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY | BLOCK_FLAG_CORRUPTED) )
{
Flush( p_dec );
if( p_block->i_flags & (BLOCK_FLAG_CORRUPTED) )
{
block_Release( p_block );
return NULL;
}
}
/* Remove ADTS header if we have decoder specific config */
if( p_dec->fmt_in.i_extra && p_block->i_buffer > 7 )
{
if( p_block->p_buffer[0] == 0xff &&
( p_block->p_buffer[1] & 0xf0 ) == 0xf0 ) /* syncword */
{ /* ADTS header present */
size_t i_header_size; /* 7 bytes (+ 2 bytes for crc) */
i_header_size = 7 + ( ( p_block->p_buffer[1] & 0x01 ) ? 0 : 2 );
/* FIXME: multiple blocks per frame */
if( p_block->i_buffer > i_header_size )
{
p_block->p_buffer += i_header_size;
p_block->i_buffer -= i_header_size;
}
}
}
/* Append the block to the temporary buffer */
if( p_sys->i_buffer_size < p_sys->i_buffer + p_block->i_buffer )
{
size_t i_buffer_size = p_sys->i_buffer + p_block->i_buffer;
uint8_t *p_buffer = realloc( p_sys->p_buffer, i_buffer_size );
if( p_buffer )
{
p_sys->i_buffer_size = i_buffer_size;
p_sys->p_buffer = p_buffer;
}
else
{
p_block->i_buffer = 0;
}
}
if( p_block->i_buffer > 0 )
{
memcpy( &p_sys->p_buffer[p_sys->i_buffer],
p_block->p_buffer, p_block->i_buffer );
p_sys->i_buffer += p_block->i_buffer;
p_block->i_buffer = 0;
}
if( p_dec->fmt_out.audio.i_rate == 0 && p_dec->fmt_in.i_extra > 0 )
{
/* We have a decoder config so init the handle */
unsigned long i_rate;
unsigned char i_channels;
if( NeAACDecInit2( p_sys->hfaad, p_dec->fmt_in.p_extra,
p_dec->fmt_in.i_extra,
&i_rate, &i_channels ) >= 0 )
{
p_dec->fmt_out.audio.i_rate = i_rate;
p_dec->fmt_out.audio.i_channels = i_channels;
p_dec->fmt_out.audio.i_physical_channels
= p_dec->fmt_out.audio.i_original_channels
= pi_channels_guessed[i_channels];
date_Init( &p_sys->date, i_rate, 1 );
}
}
if( p_dec->fmt_out.audio.i_rate == 0 && p_sys->i_buffer )
{
unsigned long i_rate;
unsigned char i_channels;
/* Init faad with the first frame */
if( NeAACDecInit( p_sys->hfaad,
p_sys->p_buffer, p_sys->i_buffer,
&i_rate, &i_channels ) < 0 )
{
block_Release( p_block );
return NULL;
}
p_dec->fmt_out.audio.i_rate = i_rate;
p_dec->fmt_out.audio.i_channels = i_channels;
p_dec->fmt_out.audio.i_physical_channels
= p_dec->fmt_out.audio.i_original_channels
= pi_channels_guessed[i_channels];
date_Init( &p_sys->date, i_rate, 1 );
}
if( p_block->i_pts > VLC_TS_INVALID && p_block->i_pts != date_Get( &p_sys->date ) )
{
date_Set( &p_sys->date, p_block->i_pts );
}
else if( !date_Get( &p_sys->date ) )
{
/* We've just started the stream, wait for the first PTS. */
block_Release( p_block );
p_sys->i_buffer = 0;
return NULL;
}
/* Decode all data */
if( p_sys->i_buffer > 1)
{
void *samples;
NeAACDecFrameInfo frame;
block_t *p_out;
samples = NeAACDecDecode( p_sys->hfaad, &frame,
p_sys->p_buffer, p_sys->i_buffer );
if( frame.error > 0 )
{
msg_Warn( p_dec, "%s", NeAACDecGetErrorMessage( frame.error ) );
if( frame.error == 21 || frame.error == 12 )
{
/*
* Once an "Unexpected channel configuration change"
* or a "Invalid number of channels" error
* occurs, it will occurs afterwards, and we got no sound.
* Reinitialization of the decoder is required.
*/
unsigned long i_rate;
unsigned char i_channels;
NeAACDecHandle *hfaad;
NeAACDecConfiguration *cfg,*oldcfg;
oldcfg = NeAACDecGetCurrentConfiguration( p_sys->hfaad );
hfaad = NeAACDecOpen();
cfg = NeAACDecGetCurrentConfiguration( hfaad );
if( oldcfg->defSampleRate )
cfg->defSampleRate = oldcfg->defSampleRate;
cfg->defObjectType = oldcfg->defObjectType;
cfg->outputFormat = oldcfg->outputFormat;
NeAACDecSetConfiguration( hfaad, cfg );
if( NeAACDecInit( hfaad, p_sys->p_buffer, p_sys->i_buffer,
&i_rate,&i_channels ) < 0 )
{
/* reinitialization failed */
NeAACDecClose( hfaad );
NeAACDecSetConfiguration( p_sys->hfaad, oldcfg );
}
else
{
NeAACDecClose( p_sys->hfaad );
p_sys->hfaad = hfaad;
p_dec->fmt_out.audio.i_rate = i_rate;
p_dec->fmt_out.audio.i_channels = i_channels;
p_dec->fmt_out.audio.i_physical_channels
= p_dec->fmt_out.audio.i_original_channels
= pi_channels_guessed[i_channels];
date_Init( &p_sys->date, i_rate, 1 );
}
}
/* Flush the buffer */
p_sys->i_buffer = 0;
block_Release( p_block );
return NULL;
}
if( frame.channels <= 0 || frame.channels > 8 || frame.channels == 7 )
{
msg_Warn( p_dec, "invalid channels count: %i", frame.channels );
/* Flush the buffer */
p_sys->i_buffer -= frame.bytesconsumed;
if( p_sys->i_buffer > 0 )
{
memmove( p_sys->p_buffer,&p_sys->p_buffer[frame.bytesconsumed],
p_sys->i_buffer );
}
block_Release( p_block );
return NULL;
}
if( frame.samples <= 0 )
{
msg_Warn( p_dec, "decoded zero sample" );
/* Flush the buffer */
p_sys->i_buffer -= frame.bytesconsumed;
if( p_sys->i_buffer > 1 )
{
memmove( p_sys->p_buffer,&p_sys->p_buffer[frame.bytesconsumed],
p_sys->i_buffer );
}
else
{
/* Drop byte of padding */
p_sys->i_buffer = 0;
}
block_Release( p_block );
return NULL;
}
/* We decoded a valid frame */
if( p_dec->fmt_out.audio.i_rate != frame.samplerate )
{
date_Init( &p_sys->date, frame.samplerate, 1 );
date_Set( &p_sys->date, p_block->i_pts );
}
p_block->i_pts = VLC_TS_INVALID; /* PTS is valid only once */
p_dec->fmt_out.audio.i_rate = frame.samplerate;
p_dec->fmt_out.audio.i_channels = frame.channels;
/* Adjust stream info when dealing with SBR/PS */
bool b_sbr = (frame.sbr == 1) || (frame.sbr == 2);
if( p_sys->b_sbr != b_sbr || p_sys->b_ps != frame.ps )
{
const char *psz_ext = (b_sbr && frame.ps) ? "SBR+PS" :
b_sbr ? "SBR" : "PS";
msg_Dbg( p_dec, "AAC %s (channels: %u, samplerate: %lu)",
psz_ext, frame.channels, frame.samplerate );
if( !p_dec->p_description )
p_dec->p_description = vlc_meta_New();
if( p_dec->p_description )
vlc_meta_AddExtra( p_dec->p_description, _("AAC extension"), psz_ext );
p_sys->b_sbr = b_sbr;
p_sys->b_ps = frame.ps;
}
/* Convert frame.channel_position to our own channel values */
p_dec->fmt_out.audio.i_physical_channels = 0;
const uint32_t nbChannels = frame.channels;
unsigned j;
for( unsigned i = 0; i < nbChannels; i++ )
{
/* Find the channel code */
for( j = 0; j < MAX_CHANNEL_POSITIONS; j++ )
{
if( frame.channel_position[i] == pi_channels_in[j] )
break;
}
if( j >= MAX_CHANNEL_POSITIONS )
{
msg_Warn( p_dec, "unknown channel ordering" );
/* Invent something */
j = i;
}
/* */
p_sys->pi_channel_positions[i] = pi_channels_out[j];
if( p_dec->fmt_out.audio.i_physical_channels & pi_channels_out[j] )
frame.channels--; /* We loose a duplicated channel */
else
p_dec->fmt_out.audio.i_physical_channels |= pi_channels_out[j];
}
if ( nbChannels != frame.channels )
{
p_dec->fmt_out.audio.i_physical_channels
= p_dec->fmt_out.audio.i_original_channels
= pi_channels_guessed[nbChannels];
}
else
{
p_dec->fmt_out.audio.i_original_channels =
p_dec->fmt_out.audio.i_physical_channels;
}
p_dec->fmt_out.audio.i_channels = nbChannels;
if( decoder_UpdateAudioFormat( p_dec ) )
p_out = NULL;
else
p_out = decoder_NewAudioBuffer( p_dec, frame.samples / nbChannels );
if( p_out == NULL )
{
p_sys->i_buffer = 0;
block_Release( p_block );
return NULL;
}
p_out->i_pts = date_Get( &p_sys->date );
p_out->i_length = date_Increment( &p_sys->date,
frame.samples / nbChannels )
- p_out->i_pts;
DoReordering( (uint32_t *)p_out->p_buffer, samples,
frame.samples / nbChannels, nbChannels,
p_sys->pi_channel_positions );
p_sys->i_buffer -= frame.bytesconsumed;
if( p_sys->i_buffer > 0 )
{
memmove( p_sys->p_buffer, &p_sys->p_buffer[frame.bytesconsumed],
p_sys->i_buffer );
}
block_Release( p_block );
return p_out;
}
else
{
/* Drop byte of padding */
p_sys->i_buffer = 0;
}
block_Release( p_block );
return NULL;
}
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
NeAACDecConfiguration *cfg;
if( p_dec->fmt_in.i_codec != VLC_CODEC_MP4A )
{
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys = malloc( sizeof(*p_sys) ) ) == NULL )
return VLC_ENOMEM;
/* Open a faad context */
if( ( p_sys->hfaad = NeAACDecOpen() ) == NULL )
{
msg_Err( p_dec, "cannot initialize faad" );
free( p_sys );
return VLC_EGENERIC;
}
/* Misc init */
date_Set( &p_sys->date, 0 );
p_dec->fmt_out.i_cat = AUDIO_ES;
p_dec->fmt_out.i_codec = HAVE_FPU ? VLC_CODEC_FL32 : VLC_CODEC_S16N;
p_dec->fmt_out.audio.i_physical_channels =
p_dec->fmt_out.audio.i_original_channels = 0;
if( p_dec->fmt_in.i_extra > 0 )
{
/* We have a decoder config so init the handle */
unsigned long i_rate;
unsigned char i_channels;
if( NeAACDecInit2( p_sys->hfaad, p_dec->fmt_in.p_extra,
p_dec->fmt_in.i_extra,
&i_rate, &i_channels ) < 0 )
{
msg_Err( p_dec, "Failed to initialize faad using extra data" );
NeAACDecClose( p_sys->hfaad );
free( p_sys );
return VLC_EGENERIC;
}
p_dec->fmt_out.audio.i_rate = i_rate;
p_dec->fmt_out.audio.i_channels = i_channels;
p_dec->fmt_out.audio.i_physical_channels
= p_dec->fmt_out.audio.i_original_channels
= pi_channels_guessed[i_channels];
date_Init( &p_sys->date, i_rate, 1 );
}
else
{
/* Will be initalised from first frame */
p_dec->fmt_out.audio.i_rate = 0;
p_dec->fmt_out.audio.i_channels = 0;
}
/* Set the faad config */
cfg = NeAACDecGetCurrentConfiguration( p_sys->hfaad );
if( p_dec->fmt_in.audio.i_rate )
cfg->defSampleRate = p_dec->fmt_in.audio.i_rate;
cfg->outputFormat = HAVE_FPU ? FAAD_FMT_FLOAT : FAAD_FMT_16BIT;
NeAACDecSetConfiguration( p_sys->hfaad, cfg );
/* buffer */
p_sys->i_buffer = p_sys->i_buffer_size = 0;
p_sys->p_buffer = NULL;
p_sys->b_sbr = p_sys->b_ps = false;
p_dec->pf_decode_audio = DecodeBlock;
p_dec->pf_flush = Flush;
return VLC_SUCCESS;
}
static gboolean
xmms_faad_init (xmms_xform_t *xform)
{
xmms_faad_data_t *data;
xmms_error_t error;
NeAACDecConfigurationPtr config;
gint bytes_read;
gulong samplerate;
guchar channels;
g_return_val_if_fail (xform, FALSE);
data = g_new0 (xmms_faad_data_t, 1);
data->outbuf = g_string_new (NULL);
data->buffer_size = FAAD_BUFFER_SIZE;
xmms_xform_private_data_set (xform, data);
data->decoder = NeAACDecOpen ();
config = NeAACDecGetCurrentConfiguration (data->decoder);
config->defObjectType = LC;
config->defSampleRate = 44100;
config->outputFormat = FAAD_FMT_16BIT;
config->downMatrix = 0;
config->dontUpSampleImplicitSBR = 0;
NeAACDecSetConfiguration (data->decoder, config);
switch (config->outputFormat) {
case FAAD_FMT_16BIT:
data->sampleformat = XMMS_SAMPLE_FORMAT_S16;
break;
case FAAD_FMT_24BIT:
/* we don't have 24-bit format to use in xmms2 */
data->sampleformat = XMMS_SAMPLE_FORMAT_S32;
break;
case FAAD_FMT_32BIT:
data->sampleformat = XMMS_SAMPLE_FORMAT_S32;
break;
case FAAD_FMT_FLOAT:
data->sampleformat = XMMS_SAMPLE_FORMAT_FLOAT;
break;
case FAAD_FMT_DOUBLE:
data->sampleformat = XMMS_SAMPLE_FORMAT_DOUBLE;
break;
}
while (data->buffer_length < 8) {
xmms_error_reset (&error);
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 < 0) {
xmms_log_error ("Error while trying to read data on init");
goto err;
} else if (bytes_read == 0) {
XMMS_DBG ("Not enough bytes to check the AAC header");
goto err;
}
}
/* which type of file are we dealing with? */
data->filetype = FAAD_TYPE_UNKNOWN;
if (xmms_xform_auxdata_has_val (xform, "decoder_config")) {
data->filetype = FAAD_TYPE_MP4;
} else if (!strncmp ((char *) data->buffer, "ADIF", 4)) {
data->filetype = FAAD_TYPE_ADIF;
} else {
int i;
/* ADTS mpeg file can be a stream and start in the middle of a
* frame so we need to have extra loop check here */
for (i=0; i<data->buffer_length-1; i++) {
if (data->buffer[i] == 0xff && (data->buffer[i+1]&0xf6) == 0xf0) {
data->filetype = FAAD_TYPE_ADTS;
g_memmove (data->buffer, data->buffer+i, data->buffer_length-i);
data->buffer_length -= i;
break;
}
}
}
if (data->filetype == FAAD_TYPE_ADTS || data->filetype == FAAD_TYPE_ADIF) {
bytes_read = NeAACDecInit (data->decoder, data->buffer,
data->buffer_length, &samplerate,
&channels);
} else if (data->filetype == FAAD_TYPE_MP4) {
const guchar *tmpbuf;
gsize tmpbuflen;
guchar *copy;
if (!xmms_xform_auxdata_get_bin (xform, "decoder_config", &tmpbuf,
&tmpbuflen)) {
XMMS_DBG ("AAC decoder config data found but it's wrong type! (something broken?)");
goto err;
}
copy = g_memdup (tmpbuf, tmpbuflen);
bytes_read = NeAACDecInit2 (data->decoder, copy, tmpbuflen,
&samplerate, &channels);
g_free (copy);
}
if (bytes_read < 0) {
XMMS_DBG ("Error initializing decoder library.");
goto err;
}
/* Get mediainfo and skip the possible header */
xmms_faad_get_mediainfo (xform);
g_memmove (data->buffer, data->buffer + bytes_read,
data->buffer_length - bytes_read);
data->buffer_length -= bytes_read;
data->samplerate = samplerate;
data->channels = channels;
/* Because for HE AAC files some versions of libfaad return the wrong
* samplerate in init, we have to do one read and let it decide the
* real parameters. After changing sample parameters and format is
* supported, this hack should be removed and handled in read instead. */
{
gchar tmpbuf[1024];
xmms_error_reset (&error);
bytes_read = xmms_faad_read (xform, tmpbuf, 1024, &error);
if (bytes_read <= 0) {
XMMS_DBG ("First read from faad decoder failed!");
return FALSE;
}
g_string_prepend_len (data->outbuf, tmpbuf, bytes_read);
}
xmms_xform_outdata_type_add (xform,
XMMS_STREAM_TYPE_MIMETYPE,
"audio/pcm",
XMMS_STREAM_TYPE_FMT_FORMAT,
data->sampleformat,
XMMS_STREAM_TYPE_FMT_CHANNELS,
data->channels,
XMMS_STREAM_TYPE_FMT_SAMPLERATE,
data->samplerate,
XMMS_STREAM_TYPE_END);
XMMS_DBG ("AAC decoder inited successfully!");
return TRUE;
err:
g_string_free (data->outbuf, TRUE);
g_free (data);
return FALSE;
}
/* player thread; for every song a new thread is started
* @param audioPlayer structure
* @return PLAYER_RET_*
*/
void *BarPlayerThread (void *data) {
struct audioPlayer *player = data;
char extraHeaders[32];
void *ret = PLAYER_RET_OK;
#ifdef ENABLE_FAAD
NeAACDecConfigurationPtr conf;
#endif
WaitressReturn_t wRet = WAITRESS_RET_ERR;
/* init handles */
player->waith.data = (void *) player;
/* extraHeaders will be initialized later */
player->waith.extraHeaders = extraHeaders;
player->buffer = malloc (BAR_PLAYER_BUFSIZE);
switch (player->audioFormat) {
#ifdef ENABLE_FAAD
case PIANO_AF_AACPLUS:
player->aacHandle = NeAACDecOpen();
/* set aac conf */
conf = NeAACDecGetCurrentConfiguration(player->aacHandle);
conf->outputFormat = FAAD_FMT_16BIT;
conf->downMatrix = 1;
NeAACDecSetConfiguration(player->aacHandle, conf);
player->waith.callback = BarPlayerAACCb;
break;
#endif /* ENABLE_FAAD */
#ifdef ENABLE_MAD
case PIANO_AF_MP3:
mad_stream_init (&player->mp3Stream);
mad_frame_init (&player->mp3Frame);
mad_synth_init (&player->mp3Synth);
player->waith.callback = BarPlayerMp3Cb;
break;
#endif /* ENABLE_MAD */
default:
/* FIXME: leaks memory */
BarUiMsg (player->settings, MSG_ERR, "Unsupported audio format!\n");
return PLAYER_RET_OK;
break;
}
player->mode = PLAYER_INITIALIZED;
/* This loop should work around song abortions by requesting the
* missing part of the song */
do {
snprintf (extraHeaders, sizeof (extraHeaders), "Range: bytes=%zu-\r\n",
player->bytesReceived);
wRet = WaitressFetchCall (&player->waith);
} while (wRet == WAITRESS_RET_PARTIAL_FILE || wRet == WAITRESS_RET_TIMEOUT
|| wRet == WAITRESS_RET_READ_ERR);
/* If the song was played all the way through tag it. */
if (wRet == WAITRESS_RET_OK) {
BarFlyTag(&player->fly, player->settings);
}
switch (player->audioFormat) {
#ifdef ENABLE_FAAD
case PIANO_AF_AACPLUS:
NeAACDecClose(player->aacHandle);
free (player->sampleSize);
break;
#endif /* ENABLE_FAAD */
#ifdef ENABLE_MAD
case PIANO_AF_MP3:
mad_synth_finish (&player->mp3Synth);
mad_frame_finish (&player->mp3Frame);
mad_stream_finish (&player->mp3Stream);
break;
#endif /* ENABLE_MAD */
default:
/* this should never happen: thread is aborted above */
break;
}
if (player->aoError) {
ret = (void *) PLAYER_RET_ERR;
}
ao_close(player->audioOutDevice);
WaitressFree (&player->waith);
free (player->buffer);
player->mode = PLAYER_FINISHED_PLAYBACK;
return ret;
}
// 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 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;
}
bool SoundSourceM4A::openDecoder() {
DEBUG_ASSERT(m_hDecoder == nullptr); // not already opened
m_hDecoder = NeAACDecOpen();
if (m_hDecoder == nullptr) {
qWarning() << "Failed to open the AAC decoder!";
return false;
}
NeAACDecConfigurationPtr pDecoderConfig = NeAACDecGetCurrentConfiguration(
m_hDecoder);
pDecoderConfig->outputFormat = FAAD_FMT_FLOAT;
if ((kChannelCountMono == m_audioSrcCfg.getChannelCount()) ||
(kChannelCountStereo == m_audioSrcCfg.getChannelCount())) {
pDecoderConfig->downMatrix = 1;
} else {
pDecoderConfig->downMatrix = 0;
}
pDecoderConfig->defObjectType = LC;
if (!NeAACDecSetConfiguration(m_hDecoder, pDecoderConfig)) {
qWarning() << "Failed to configure AAC decoder!";
return false;
}
u_int8_t* configBuffer = nullptr;
u_int32_t configBufferSize = 0;
if (!MP4GetTrackESConfiguration(m_hFile, m_trackId, &configBuffer,
&configBufferSize)) {
// Failed to get mpeg-4 audio config... this is ok.
// NeAACDecInit2() will simply use default values instead.
qWarning() << "Failed to read the MP4 audio configuration."
<< "Continuing with default values.";
}
SAMPLERATE_TYPE samplingRate;
unsigned char channelCount;
if (0 > NeAACDecInit2(m_hDecoder, configBuffer, configBufferSize,
&samplingRate, &channelCount)) {
free(configBuffer);
qWarning() << "Failed to initialize the AAC decoder!";
return false;
} else {
free(configBuffer);
}
// Calculate how many sample blocks we need to decode in advance
// of a random seek in order to get the recommended number of
// prefetch frames
m_numberOfPrefetchSampleBlocks =
(kNumberOfPrefetchFrames + (m_framesPerSampleBlock - 1)) /
m_framesPerSampleBlock;
setChannelCount(channelCount);
setSamplingRate(samplingRate);
setFrameCount(((m_maxSampleBlockId - kSampleBlockIdMin) + 1) * m_framesPerSampleBlock);
// Resize temporary buffer for decoded sample data
const SINT sampleBufferCapacity =
frames2samples(m_framesPerSampleBlock);
m_sampleBuffer.resetCapacity(sampleBufferCapacity);
// Discard all buffered samples
m_inputBufferLength = 0;
// Invalidate current position(s) for the following seek operation
m_curSampleBlockId = MP4_INVALID_SAMPLE_ID;
m_curFrameIndex = getMaxFrameIndex();
// (Re-)Start decoding at the beginning of the file
seekSampleFrame(getMinFrameIndex());
return m_curFrameIndex == getMinFrameIndex();
}
/* this is called for each file to process */
enum codec_status codec_run(void)
{
size_t n;
int32_t bread;
unsigned int frame_samples;
uint32_t s = 0;
unsigned char c = 0;
long action = CODEC_ACTION_NULL;
intptr_t param;
unsigned char* buffer;
NeAACDecFrameInfo frame_info;
NeAACDecHandle decoder;
NeAACDecConfigurationPtr conf;
/* Clean and initialize decoder structures */
if (codec_init()) {
LOGF("FAAD: Codec init error\n");
return CODEC_ERROR;
}
ci->configure(DSP_SET_FREQUENCY, ci->id3->frequency);
codec_set_replaygain(ci->id3);
ci->seek_buffer(ci->id3->first_frame_offset);
/* initialise the sound converter */
decoder = NeAACDecOpen();
if (!decoder) {
LOGF("FAAD: Decode open error\n");
return CODEC_ERROR;
}
conf = NeAACDecGetCurrentConfiguration(decoder);
conf->outputFormat = FAAD_FMT_24BIT; /* irrelevant, we don't convert */
NeAACDecSetConfiguration(decoder, conf);
buffer=ci->request_buffer(&n, FAAD_BYTE_BUFFER_SIZE);
bread = NeAACDecInit(decoder, buffer, n, &s, &c);
if (bread < 0) {
LOGF("FAAD: DecInit: %ld, %d\n", bread, decoder->object_type);
return CODEC_ERROR;
}
ci->advance_buffer(bread);
if (ci->id3->offset > ci->id3->first_frame_offset) {
/* Resume the desired (byte) position. */
ci->seek_buffer(ci->id3->offset);
NeAACDecPostSeekReset(decoder, 0);
update_playing_time();
} else if (ci->id3->elapsed) {
action = CODEC_ACTION_SEEK_TIME;
param = ci->id3->elapsed;
} else {
ci->set_elapsed(0);
ci->set_offset(ci->id3->first_frame_offset);
}
/* The main decoding loop */
while (1) {
if (action == CODEC_ACTION_NULL)
action = ci->get_command(¶m);
if (action == CODEC_ACTION_HALT)
break;
/* Deal with any pending seek requests */
if (action == CODEC_ACTION_SEEK_TIME) {
/* Seek to the desired time position. */
ci->seek_buffer(ci->id3->first_frame_offset + (uint32_t)((uint64_t)param * ci->id3->bitrate / 8));
ci->set_elapsed((unsigned long)param);
NeAACDecPostSeekReset(decoder, 0);
ci->seek_complete();
}
action = CODEC_ACTION_NULL;
/* Request the required number of bytes from the input buffer */
buffer=ci->request_buffer(&n, FAAD_BYTE_BUFFER_SIZE);
if (n == 0) /* End of Stream */
break;
/* Decode one block - returned samples will be host-endian */
if (NeAACDecDecode(decoder, &frame_info, buffer, n) == NULL || frame_info.error > 0) {
LOGF("FAAD: decode error '%s'\n", NeAACDecGetErrorMessage(frame_info.error));
return CODEC_ERROR;
}
/* Advance codec buffer (no need to call set_offset because of this) */
ci->advance_buffer(frame_info.bytesconsumed);
/* Output the audio */
ci->yield();
frame_samples = frame_info.samples >> 1;
ci->pcmbuf_insert(&decoder->time_out[0][0], &decoder->time_out[1][0], frame_samples);
/* Update the elapsed-time indicator */
update_playing_time();
}
LOGF("AAC: Decoding complete\n");
return CODEC_OK;
}
int decoder_aac_open(struct decoder **decoder, const unsigned char *dec_config,
size_t dec_config_size, unsigned long *samplerate,
unsigned char *channels)
{
NeAACDecConfigurationPtr config;
struct decoder *dec;
int ret;
/* Alloc structure */
*decoder = malloc(sizeof(struct decoder));
if(*decoder == NULL)
return -1;
dec = *decoder;
/* Init structure */
dec->pcm_buffer = NULL;
dec->pcm_length = 0;
dec->pcm_remain = 0;
/* Initialize faad */
dec->hDec = NeAACDecOpen();
/* Set the default object type and samplerate */
config = NeAACDecGetCurrentConfiguration(dec->hDec);
#ifdef USE_FLOAT
config->outputFormat = FAAD_FMT_FLOAT;
#else
config->outputFormat = FAAD_FMT_24BIT;
#endif
NeAACDecSetConfiguration(dec->hDec, config);
/* PCM data remaining in output buffer */
dec->pcm_remain = 0;
/* Check if ADTS or ADIF header */
if(dec_config != NULL &&
((dec_config[0] == 0xFF && (dec_config[1] & 0xF6) == 0xF0) ||
memcmp(dec_config, "ADIF", 4) == 0))
{
/* Init decoder from frame */
ret = NeAACDecInit(dec->hDec, (unsigned char *) dec_config,
dec_config_size, &dec->samplerate,
&dec->channels);
}
else
{
/* Init decoder */
ret = NeAACDecInit2(dec->hDec, (unsigned char *) dec_config,
dec_config_size, &dec->samplerate,
&dec->channels);
}
/* Check init return */
if(ret < 0)
{
NeAACDecClose(dec->hDec);
dec->hDec = NULL;
return -1;
}
/* Retunr samplerate and channels */
if(samplerate != NULL)
*samplerate = dec->samplerate;
if(channels != NULL)
*channels = dec->channels;
return 0;
}
bool DecoderAAC::initialize()
{
m_bitrate = 0;
m_totalTime = 0;
if (!input())
{
qWarning("DecoderAAC: cannot initialize. No input.");
return false;
}
if (!m_input_buf)
m_input_buf = new char[AAC_BUFFER_SIZE];
m_input_at = 0;
if (!input()->isOpen())
{
if (!input()->open(QIODevice::ReadOnly))
{
qWarning("DecoderAAC: %s", qPrintable(input()->errorString ()));
return false;
}
}
AACFile aac_file(input());
if (!aac_file.isValid())
{
qWarning("DecoderAAC: unsupported AAC file");
return false;
}
//skip id3 tag and partial frame
if(aac_file.offset() > 0)
{
qDebug("DecoderAAC: header offset = %d bytes", aac_file.offset());
char data[aac_file.offset()];
input()->read(data, aac_file.offset());
}
m_totalTime = aac_file.length() * 1000;
m_bitrate = aac_file.bitrate();
if (!m_data)
m_data = new aac_data;
data()->handle = NeAACDecOpen();
NeAACDecConfigurationPtr conf;
conf = NeAACDecGetCurrentConfiguration(data()->handle);
conf->downMatrix = 1;
conf->defSampleRate = 44100;
conf->dontUpSampleImplicitSBR = 0;
conf->defObjectType = LC;
conf->outputFormat = FAAD_FMT_16BIT;
NeAACDecSetConfiguration(data()->handle, conf);
m_input_at = input()->read((char *)m_input_buf, AAC_BUFFER_SIZE);
#ifdef FAAD_MODIFIED
uint32_t freq = 0;
uint8_t chan = 0;
#else
unsigned long freq = 0;
unsigned char chan = 0;
#endif
int res = NeAACDecInit (data()->handle, (unsigned char*) m_input_buf, m_input_at, &freq, &chan);
if (res < 0)
{
qWarning("DecoderAAC: NeAACDecInit() failed");
return false;
}
if (!freq || !chan)
{
qWarning("DecoderAAC: invalid sound parameters");
return false;
}
memmove(m_input_buf, m_input_buf + res, m_input_at - res);
m_input_at -= res;
configure(freq, chan, Qmmp::PCM_S16LE);
qDebug("DecoderAAC: initialize succes");
return true;
}
Result SoundSourceM4A::tryOpen(const AudioSourceConfig& audioSrcCfg) {
DEBUG_ASSERT(MP4_INVALID_FILE_HANDLE == m_hFile);
// open MP4 file, check for >= ver 1.9.1
// From mp4v2/file.h:
// * On Windows, this should be a UTF-8 encoded string.
// * On other platforms, it should be an 8-bit encoding that is
// * appropriate for the platform, locale, file system, etc.
// * (prefer to use UTF-8 when possible).
#if MP4V2_PROJECT_version_hex <= 0x00010901
m_hFile = MP4Read(getLocalFileName().toUtf8().constData(), 0);
#else
m_hFile = MP4Read(getLocalFileName().toUtf8().constData());
#endif
if (MP4_INVALID_FILE_HANDLE == m_hFile) {
qWarning() << "Failed to open file for reading:" << getUrlString();
return ERR;
}
m_trackId = findFirstAudioTrackId(m_hFile);
if (MP4_INVALID_TRACK_ID == m_trackId) {
qWarning() << "No AAC track found:" << getUrlString();
return ERR;
}
// Read fixed sample duration. If the sample duration is not
// fixed (that is, if the number of frames per sample block varies
// through the file), the call returns MP4_INVALID_DURATION. We
// can't currently handle these.
m_framesPerSampleBlock = MP4GetTrackFixedSampleDuration(m_hFile, m_trackId);
if (MP4_INVALID_DURATION == m_framesPerSampleBlock) {
qWarning() << "Unable to decode tracks with non-fixed sample durations: " << getUrlString();
return ERR;
}
const MP4SampleId numberOfSamples =
MP4GetTrackNumberOfSamples(m_hFile, m_trackId);
if (0 >= numberOfSamples) {
qWarning() << "Failed to read number of samples from file:" << getUrlString();
return ERR;
}
m_maxSampleBlockId = kSampleBlockIdMin + (numberOfSamples - 1);
// Determine the maximum input size (in bytes) of a
// sample block for the selected track.
const u_int32_t maxSampleBlockInputSize = MP4GetTrackMaxSampleSize(m_hFile,
m_trackId);
m_inputBuffer.resize(maxSampleBlockInputSize, 0);
DEBUG_ASSERT(nullptr == m_hDecoder); // not already opened
m_hDecoder = NeAACDecOpen();
if (!m_hDecoder) {
qWarning() << "Failed to open the AAC decoder!";
return ERR;
}
NeAACDecConfigurationPtr pDecoderConfig = NeAACDecGetCurrentConfiguration(
m_hDecoder);
pDecoderConfig->outputFormat = FAAD_FMT_FLOAT;
if ((kChannelCountMono == audioSrcCfg.channelCountHint) ||
(kChannelCountStereo == audioSrcCfg.channelCountHint)) {
pDecoderConfig->downMatrix = 1;
} else {
pDecoderConfig->downMatrix = 0;
}
pDecoderConfig->defObjectType = LC;
if (!NeAACDecSetConfiguration(m_hDecoder, pDecoderConfig)) {
qWarning() << "Failed to configure AAC decoder!";
return ERR;
}
u_int8_t* configBuffer = nullptr;
u_int32_t configBufferSize = 0;
if (!MP4GetTrackESConfiguration(m_hFile, m_trackId, &configBuffer,
&configBufferSize)) {
/* failed to get mpeg-4 audio config... this is ok.
* NeAACDecInit2() will simply use default values instead.
*/
qWarning() << "Failed to read the MP4 audio configuration."
<< "Continuing with default values.";
}
SAMPLERATE_TYPE sampleRate;
unsigned char channelCount;
if (0 > NeAACDecInit2(m_hDecoder, configBuffer, configBufferSize,
&sampleRate, &channelCount)) {
free(configBuffer);
qWarning() << "Failed to initialize the AAC decoder!";
return ERR;
} else {
free(configBuffer);
}
// Calculate how many sample blocks we need to decode in advance
// of a random seek in order to get the recommended number of
// prefetch frames
m_numberOfPrefetchSampleBlocks = (kNumberOfPrefetchFrames +
(m_framesPerSampleBlock - 1)) / m_framesPerSampleBlock;
setChannelCount(channelCount);
setFrameRate(sampleRate);
setFrameCount(((m_maxSampleBlockId - kSampleBlockIdMin) + 1) * m_framesPerSampleBlock);
// Resize temporary buffer for decoded sample data
const SINT sampleBufferCapacity =
frames2samples(m_framesPerSampleBlock);
m_sampleBuffer.resetCapacity(sampleBufferCapacity);
// Invalidate current position to enforce the following
// seek operation
m_curFrameIndex = getMaxFrameIndex();
// (Re-)Start decoding at the beginning of the file
seekSampleFrame(getMinFrameIndex());
return OK;
}
/* player thread; for every song a new thread is started
* @param audioPlayer structure
* @return PLAYER_RET_*
*/
void *BarPlayerThread (void *data) {
struct audioPlayer *player = data;
char extraHeaders[32];
void *ret = PLAYER_RET_OK;
#ifdef ENABLE_FAAD
NeAACDecConfigurationPtr conf;
#endif
WaitressReturn_t wRet = WAITRESS_RET_ERR;
/* init handles */
pthread_mutex_init (&player->pauseMutex, NULL);
player->waith.data = (void *) player;
/* extraHeaders will be initialized later */
player->waith.extraHeaders = extraHeaders;
player->buffer = malloc (BAR_PLAYER_BUFSIZE);
switch (player->audioFormat) {
#ifdef ENABLE_FAAD
case PIANO_AF_AACPLUS:
player->aacHandle = NeAACDecOpen();
/* set aac conf */
conf = NeAACDecGetCurrentConfiguration(player->aacHandle);
conf->outputFormat = FAAD_FMT_16BIT;
conf->downMatrix = 1;
NeAACDecSetConfiguration(player->aacHandle, conf);
player->waith.callback = BarPlayerAACCb;
break;
#endif /* ENABLE_FAAD */
#ifdef ENABLE_MAD
case PIANO_AF_MP3:
mad_stream_init (&player->mp3Stream);
mad_frame_init (&player->mp3Frame);
mad_synth_init (&player->mp3Synth);
player->waith.callback = BarPlayerMp3Cb;
break;
#endif /* ENABLE_MAD */
default:
BarUiMsg (player->settings, MSG_ERR, "Unsupported audio format!\n");
ret = (void *) PLAYER_RET_HARDFAIL;
goto cleanup;
break;
}
player->mode = PLAYER_INITIALIZED;
/* This loop should work around song abortions by requesting the
* missing part of the song */
do {
snprintf (extraHeaders, sizeof (extraHeaders), "Range: bytes=%zu-\r\n",
player->bytesReceived);
wRet = WaitressFetchCall (&player->waith);
} while (wRet == WAITRESS_RET_PARTIAL_FILE || wRet == WAITRESS_RET_TIMEOUT
|| wRet == WAITRESS_RET_READ_ERR);
switch (player->audioFormat) {
#ifdef ENABLE_FAAD
case PIANO_AF_AACPLUS:
NeAACDecClose(player->aacHandle);
free (player->sampleSize);
break;
#endif /* ENABLE_FAAD */
#ifdef ENABLE_MAD
case PIANO_AF_MP3:
mad_synth_finish (&player->mp3Synth);
mad_frame_finish (&player->mp3Frame);
mad_stream_finish (&player->mp3Stream);
break;
#endif /* ENABLE_MAD */
default:
/* this should never happen */
assert (0);
break;
}
if (player->aoError) {
ret = (void *) PLAYER_RET_HARDFAIL;
}
/* Pandora sends broken audio url’s sometimes (“bad request”). ignore them. */
if (wRet != WAITRESS_RET_OK && wRet != WAITRESS_RET_CB_ABORT) {
BarUiMsg (player->settings, MSG_ERR, "Cannot access audio file: %s\n",
WaitressErrorToStr (wRet));
ret = (void *) PLAYER_RET_SOFTFAIL;
}
cleanup:
ao_close (player->audioOutDevice);
WaitressFree (&player->waith);
free (player->buffer);
player->mode = PLAYER_FINISHED_PLAYBACK;
return ret;
}
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 int audio_decoder_init(
#ifndef WIN32
audio_decoder_operations_t *adec_ops,
#endif
char *outbuf, int *outlen, char *inbuf, int inlen, long *inbuf_consumed)
{
unsigned long samplerate;
unsigned char channels;
int ret;
NeAACDecConfigurationPtr config = NULL;
char *in_buf;
int inbuf_size;
in_buf = inbuf;
inbuf_size = inlen;
int nReadLen=0;
FaadContext *gFaadCxt = (FaadContext*)adec_ops->pdecoder;
int islatm = 0;
if(!in_buf || !inbuf_size ||!outbuf){
audio_codec_print(" input/output buffer null or input len is 0 \n");
}
retry:
//fixed to LATM aac frame header sync to speed up seek speed
#if 1
if(adec_ops->nAudioDecoderType == ACODEC_FMT_AAC_LATM){
islatm = 1;
int nSeekNum = AACFindLATMSyncWord(in_buf,inbuf_size);
if(nSeekNum == (inbuf_size-2)){
audio_codec_print("[%s]%d bytes data not found latm sync header \n",__FUNCTION__,nSeekNum);
}
else{
audio_codec_print("[%s]latm seek sync header cost %d,total %d,left %d \n",__FUNCTION__,nSeekNum,inbuf_size,inbuf_size - nSeekNum);
}
inbuf_size = inbuf_size - nSeekNum;
if(inbuf_size < (get_frame_size(gFaadCxt)+FRAME_SIZE_MARGIN)/*AAC_INPUTBUF_SIZE/2*/){
audio_codec_print("[%s]input size %d at least %d ,need more data \n",__FUNCTION__,inbuf_size,(get_frame_size(gFaadCxt)+FRAME_SIZE_MARGIN));
*inbuf_consumed = inlen-inbuf_size;
return AAC_ERROR_NO_ENOUGH_DATA;
}
}
#endif
gFaadCxt->hDecoder = NeAACDecOpen();
config = NeAACDecGetCurrentConfiguration(gFaadCxt->hDecoder);
config->defObjectType = LC;
config->outputFormat = FAAD_FMT_16BIT;
config->downMatrix = 0x01;
config->useOldADTSFormat = 0;
//config->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration(gFaadCxt->hDecoder, config);
if ((ret = NeAACDecInit(gFaadCxt->hDecoder, in_buf,inbuf_size, &samplerate, &channels,islatm)) < 0)
{
in_buf += RSYNC_SKIP_BYTES;
inbuf_size -= RSYNC_SKIP_BYTES;
NeAACDecClose(gFaadCxt->hDecoder);
gFaadCxt->hDecoder=NULL;
if(inbuf_size < 0)
inbuf_size = 0;
audio_codec_print("init fail,inbuf_size %d \n",inbuf_size);
if(inbuf_size < (get_frame_size(gFaadCxt)+FRAME_SIZE_MARGIN)/*AAC_INPUTBUF_SIZE/2*/){
audio_codec_print("input size %d at least %d ,need more data \n",inbuf_size,(get_frame_size(gFaadCxt)+FRAME_SIZE_MARGIN));
*inbuf_consumed = inlen-inbuf_size;
return AAC_ERROR_NO_ENOUGH_DATA;
}
goto retry;
}
audio_codec_print("init sucess cost %d\n",ret);
in_buf += ret;
inbuf_size -= ret;
*inbuf_consumed = inlen- inbuf_size;
NeAACDecStruct* hDecoder = (NeAACDecStruct*)(gFaadCxt->hDecoder);
gFaadCxt->init_flag=1;
gFaadCxt->gChannels=channels;
gFaadCxt->gSampleRate=samplerate;
audio_codec_print("[%s] Init OK adif_present :%d adts_present:%d latm_present:%d,sr %d,ch %d\n",__FUNCTION__,hDecoder->adif_header_present,hDecoder->adts_header_present,hDecoder->latm_header_present,samplerate,channels);
return 0;
}
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;
}
static void *aac_open_internal (struct io_stream *stream, const char *fname)
{
struct aac_data *data;
NeAACDecConfigurationPtr neaac_cfg;
unsigned char channels;
unsigned long sample_rate;
int n;
/* init private struct */
data = xcalloc (1, sizeof *data);
data->decoder = NeAACDecOpen();
/* set decoder config */
neaac_cfg = NeAACDecGetCurrentConfiguration(data->decoder);
neaac_cfg->outputFormat = FAAD_FMT_16BIT; /* force 16 bit audio */
neaac_cfg->downMatrix = 1; /* 5.1 -> stereo */
neaac_cfg->dontUpSampleImplicitSBR = 0; /* upsample, please! */
NeAACDecSetConfiguration(data->decoder, neaac_cfg);
if (stream)
data->stream = stream;
else {
data->stream = io_open (fname, 1);
if (!io_ok(data->stream)) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open AAC file: %s", io_strerror(data->stream));
return data;
}
}
/* find a frame */
if (buffer_fill_frame(data) <= 0) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Not a valid (or unsupported) AAC file");
return data;
}
/* in case of a bug, make sure there is at least some data
* in the buffer for NeAACDecInit() to work with.
*/
if (buffer_fill_min(data, 256) <= 0) {
decoder_error (&data->error, ERROR_FATAL, 0,
"AAC file/stream too short");
return data;
}
/* init decoder, returns the length of the header (if any) */
channels = (unsigned char)data->channels;
sample_rate = data->sample_rate;
n = NeAACDecInit (data->decoder, buffer_data(data), buffer_length(data),
&sample_rate, &channels);
data->channels = channels;
data->sample_rate = (int)sample_rate;
if (n < 0) {
decoder_error (&data->error, ERROR_FATAL, 0,
"libfaad can't open this stream");
return data;
}
logit ("sample rate %dHz, channels %d", data->sample_rate, data->channels);
if (!data->sample_rate || !data->channels) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Invalid AAC sound parameters");
return data;
}
/* skip the header */
logit ("skipping header (%d bytes)", n);
buffer_consume (data, n);
/*NeAACDecInitDRM(data->decoder, data->sample_rate, data->channels);*/
data->ok = 1;
return data;
}
Result SoundSourceM4A::tryOpen(const AudioSourceConfig& audioSrcCfg) {
DEBUG_ASSERT(MP4_INVALID_FILE_HANDLE == m_hFile);
/* open MP4 file, check for >= ver 1.9.1 */
#if MP4V2_PROJECT_version_hex <= 0x00010901
m_hFile = MP4Read(getLocalFileNameBytes().constData(), 0);
#else
m_hFile = MP4Read(getLocalFileNameBytes().constData());
#endif
if (MP4_INVALID_FILE_HANDLE == m_hFile) {
qWarning() << "Failed to open file for reading:" << getUrlString();
return ERR;
}
m_trackId = findFirstAudioTrackId(m_hFile);
if (MP4_INVALID_TRACK_ID == m_trackId) {
qWarning() << "No AAC track found:" << getUrlString();
return ERR;
}
const MP4SampleId numberOfSamples =
MP4GetTrackNumberOfSamples(m_hFile, m_trackId);
if (0 >= numberOfSamples) {
qWarning() << "Failed to read number of samples from file:" << getUrlString();
return ERR;
}
m_maxSampleBlockId = kSampleBlockIdMin + (numberOfSamples - 1);
// Determine the maximum input size (in bytes) of a
// sample block for the selected track.
const u_int32_t maxSampleBlockInputSize = MP4GetTrackMaxSampleSize(m_hFile,
m_trackId);
m_inputBuffer.resize(maxSampleBlockInputSize, 0);
DEBUG_ASSERT(NULL == m_hDecoder); // not already opened
m_hDecoder = NeAACDecOpen();
if (!m_hDecoder) {
qWarning() << "Failed to open the AAC decoder!";
return ERR;
}
NeAACDecConfigurationPtr pDecoderConfig = NeAACDecGetCurrentConfiguration(
m_hDecoder);
pDecoderConfig->outputFormat = FAAD_FMT_FLOAT;
if ((kChannelCountMono == audioSrcCfg.channelCountHint) ||
(kChannelCountStereo == audioSrcCfg.channelCountHint)) {
pDecoderConfig->downMatrix = 1;
} else {
pDecoderConfig->downMatrix = 0;
}
pDecoderConfig->defObjectType = LC;
if (!NeAACDecSetConfiguration(m_hDecoder, pDecoderConfig)) {
qWarning() << "Failed to configure AAC decoder!";
return ERR;
}
u_int8_t* configBuffer = NULL;
u_int32_t configBufferSize = 0;
if (!MP4GetTrackESConfiguration(m_hFile, m_trackId, &configBuffer,
&configBufferSize)) {
/* failed to get mpeg-4 audio config... this is ok.
* NeAACDecInit2() will simply use default values instead.
*/
qWarning() << "Failed to read the MP4 audio configuration."
<< "Continuing with default values.";
}
SAMPLERATE_TYPE sampleRate;
unsigned char channelCount;
if (0 > NeAACDecInit2(m_hDecoder, configBuffer, configBufferSize,
&sampleRate, &channelCount)) {
free(configBuffer);
qWarning() << "Failed to initialize the AAC decoder!";
return ERR;
} else {
free(configBuffer);
}
setChannelCount(channelCount);
setFrameRate(sampleRate);
setFrameCount(getFrameCountForSampleBlockId(m_maxSampleBlockId));
// Resize temporary buffer for decoded sample data
const SINT sampleBufferCapacity =
frames2samples(kFramesPerSampleBlock);
m_sampleBuffer.resetCapacity(sampleBufferCapacity);
// Invalidate current position to enforce the following
// seek operation
m_curFrameIndex = getMaxFrameIndex();
// (Re-)Start decoding at the beginning of the file
seekSampleFrame(getMinFrameIndex());
return OK;
}
/* player thread; for every song a new thread is started
* @param aacPlayer structure
* @return NULL NULL NULL ...
*/
void *BarPlayerThread (void *data) {
struct audioPlayer *player = data;
char extraHeaders[25];
void *ret = PLAYER_RET_OK;
#ifdef ENABLE_FAAD
NeAACDecConfigurationPtr conf;
#endif
WaitressReturn_t wRet = WAITRESS_RET_ERR;
/* init handles */
pthread_mutex_init (&player->pauseMutex, NULL);
player->scale = computeReplayGainScale (player->gain);
player->waith.data = (void *) player;
/* extraHeaders will be initialized later */
player->waith.extraHeaders = extraHeaders;
switch (player->audioFormat) {
#ifdef ENABLE_FAAD
case PIANO_AF_AACPLUS:
player->aacHandle = NeAACDecOpen();
/* set aac conf */
conf = NeAACDecGetCurrentConfiguration(player->aacHandle);
conf->outputFormat = FAAD_FMT_16BIT;
conf->downMatrix = 1;
NeAACDecSetConfiguration(player->aacHandle, conf);
player->waith.callback = BarPlayerAACCb;
break;
#endif /* ENABLE_FAAD */
#ifdef ENABLE_MAD
case PIANO_AF_MP3:
case PIANO_AF_MP3_HI:
mad_stream_init (&player->mp3Stream);
mad_frame_init (&player->mp3Frame);
mad_synth_init (&player->mp3Synth);
player->waith.callback = BarPlayerMp3Cb;
break;
#endif /* ENABLE_MAD */
default:
printf("Unsupported audio format!\n");
return PLAYER_RET_OK;
break;
}
player->mode = PLAYER_INITIALIZED;
/* This loop should work around song abortions by requesting the
* missing part of the song */
do {
snprintf (extraHeaders, sizeof (extraHeaders), "Range: bytes=%zu-\r\n",
player->bytesReceived);
wRet = WaitressFetchCall (&player->waith);
} while (wRet == WAITRESS_RET_PARTIAL_FILE || wRet == WAITRESS_RET_TIMEOUT
|| wRet == WAITRESS_RET_READ_ERR);
switch (player->audioFormat) {
#ifdef ENABLE_FAAD
case PIANO_AF_AACPLUS:
NeAACDecClose(player->aacHandle);
break;
#endif /* ENABLE_FAAD */
#ifdef ENABLE_MAD
case PIANO_AF_MP3:
case PIANO_AF_MP3_HI:
mad_synth_finish (&player->mp3Synth);
mad_frame_finish (&player->mp3Frame);
mad_stream_finish (&player->mp3Stream);
break;
#endif /* ENABLE_MAD */
default:
/* this should never happen: thread is aborted above */
break;
}
if (player->aoError) {
ret = (void *) PLAYER_RET_ERR;
}
if (player->audioOutDevice)
ao_close(player->audioOutDevice);
WaitressFree (&player->waith);
#ifdef ENABLE_FAAD
if (player->sampleSize != NULL) {
free (player->sampleSize);
}
#endif /* ENABLE_FAAD */
pthread_mutex_destroy (&player->pauseMutex);
player->mode = PLAYER_FINISHED_PLAYBACK;
return ret;
}
int decodeAACfile(char *sndfile, int def_srate, aac_dec_opt *opt)
{
int tagsize;
unsigned long samplerate;
unsigned char channels;
void *sample_buffer;
FILE *infile;
audio_file *aufile;
NeAACDecHandle hDecoder;
NeAACDecFrameInfo frameInfo;
NeAACDecConfigurationPtr config;
int first_time = 1;
/* declare variables for buffering */
DEC_BUFF_VARS
infile = fopen(opt->filename, "rb");
if (infile == NULL)
{
/* unable to open file */
error_handler("Error opening file: %s\n", opt->filename);
return 1;
}
INIT_BUFF(infile)
tagsize = id3v2_tag(buffer);
if (tagsize)
{
UPDATE_BUFF_SKIP(tagsize)
}
hDecoder = NeAACDecOpen();
/* Set the default object type and samplerate */
/* This is useful for RAW AAC files */
config = NeAACDecGetCurrentConfiguration(hDecoder);
if (def_srate)
config->defSampleRate = def_srate;
config->defObjectType = opt->object_type;
config->outputFormat = opt->output_format;
NeAACDecSetConfiguration(hDecoder, config);
if ((bytesconsumed = NeAACDecInit(hDecoder, buffer, bytes_in_buffer,
&samplerate, &channels)) < 0)
{
/* If some error initializing occured, skip the file */
error_handler("Error initializing decoder library.\n");
END_BUFF
NeAACDecClose(hDecoder);
fclose(infile);
return 1;
}
buffer_index += bytesconsumed;
do
{
/* update buffer */
UPDATE_BUFF_READ
sample_buffer = NeAACDecDecode(hDecoder, &frameInfo, buffer, bytes_in_buffer);
/* update buffer indices */
UPDATE_BUFF_IDX(frameInfo)
if (frameInfo.error > 0)
{
error_handler("Error: %s\n",
NeAACDecGetErrorMessage(frameInfo.error));
}
opt->progress_update((long)fileread, buffer_index);
/* 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");
END_BUFF
NeAACDecClose(hDecoder);
fclose(infile);
return (0);
}
}
else
{
aufile = open_audio_file(sndfile, samplerate, frameInfo.channels,
opt->output_format, opt->file_type, aacChannelConfig2wavexChannelMask(&frameInfo));
if (aufile == NULL)
{
END_BUFF
NeAACDecClose(hDecoder);
fclose(infile);
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 (buffer_index >= fileread)
sample_buffer = NULL; /* to make sure it stops now */
if(stop_decoding)
break;
} while (sample_buffer != NULL);
NeAACDecClose(hDecoder);
fclose(infile);
if(opt->decode_mode == 0)
WIN_Audio_close();
else
{
if (!first_time)
close_audio_file(aufile);
}
END_BUFF
return frameInfo.error;
}
/* this is called for each file to process */
enum codec_status codec_run(void)
{
/* Note that when dealing with QuickTime/MPEG4 files, terminology is
* a bit confusing. Files with sound are split up in chunks, where
* each chunk contains one or more samples. Each sample in turn
* contains a number of "sound samples" (the kind you refer to with
* the sampling frequency).
*/
size_t n;
demux_res_t demux_res;
stream_t input_stream;
uint32_t sound_samples_done;
uint32_t elapsed_time;
int file_offset;
int framelength;
int lead_trim = 0;
unsigned int frame_samples;
unsigned int i;
unsigned char* buffer;
NeAACDecFrameInfo frame_info;
NeAACDecHandle decoder;
int err;
uint32_t seek_idx = 0;
uint32_t s = 0;
uint32_t sbr_fac = 1;
unsigned char c = 0;
void *ret;
intptr_t param;
bool empty_first_frame = false;
/* Clean and initialize decoder structures */
memset(&demux_res , 0, sizeof(demux_res));
if (codec_init()) {
LOGF("FAAD: Codec init error\n");
return CODEC_ERROR;
}
file_offset = ci->id3->offset;
ci->configure(DSP_SWITCH_FREQUENCY, ci->id3->frequency);
codec_set_replaygain(ci->id3);
stream_create(&input_stream,ci);
ci->seek_buffer(ci->id3->first_frame_offset);
/* if qtmovie_read returns successfully, the stream is up to
* the movie data, which can be used directly by the decoder */
if (!qtmovie_read(&input_stream, &demux_res)) {
LOGF("FAAD: File init error\n");
return CODEC_ERROR;
}
/* initialise the sound converter */
decoder = NeAACDecOpen();
if (!decoder) {
LOGF("FAAD: Decode open error\n");
return CODEC_ERROR;
}
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(decoder);
conf->outputFormat = FAAD_FMT_24BIT; /* irrelevant, we don't convert */
NeAACDecSetConfiguration(decoder, conf);
err = NeAACDecInit2(decoder, demux_res.codecdata, demux_res.codecdata_len, &s, &c);
if (err) {
LOGF("FAAD: DecInit: %d, %d\n", err, decoder->object_type);
return CODEC_ERROR;
}
#ifdef SBR_DEC
/* Check for need of special handling for seek/resume and elapsed time. */
if (ci->id3->needs_upsampling_correction) {
sbr_fac = 2;
} else {
sbr_fac = 1;
}
#endif
i = 0;
if (file_offset > 0) {
/* Resume the desired (byte) position. Important: When resuming SBR
* upsampling files the resulting sound_samples_done must be expanded
* by a factor of 2. This is done via using sbr_fac. */
if (m4a_seek_raw(&demux_res, &input_stream, file_offset,
&sound_samples_done, (int*) &i)) {
sound_samples_done *= sbr_fac;
} else {
sound_samples_done = 0;
}
NeAACDecPostSeekReset(decoder, i);
} else {
sound_samples_done = 0;
}
elapsed_time = (sound_samples_done * 10) / (ci->id3->frequency / 100);
ci->set_elapsed(elapsed_time);
if (i == 0)
{
lead_trim = ci->id3->lead_trim;
}
/* The main decoding loop */
while (i < demux_res.num_sample_byte_sizes) {
enum codec_command_action action = ci->get_command(¶m);
if (action == CODEC_ACTION_HALT)
break;
/* Deal with any pending seek requests */
if (action == CODEC_ACTION_SEEK_TIME) {
/* Seek to the desired time position. Important: When seeking in SBR
* upsampling files the seek_time must be divided by 2 when calling
* m4a_seek and the resulting sound_samples_done must be expanded
* by a factor 2. This is done via using sbr_fac. */
if (m4a_seek(&demux_res, &input_stream,
(param/10/sbr_fac)*(ci->id3->frequency/100),
&sound_samples_done, (int*) &i)) {
sound_samples_done *= sbr_fac;
elapsed_time = (sound_samples_done * 10) / (ci->id3->frequency / 100);
ci->set_elapsed(elapsed_time);
seek_idx = 0;
if (i == 0)
{
lead_trim = ci->id3->lead_trim;
}
}
NeAACDecPostSeekReset(decoder, i);
ci->seek_complete();
}
/* There can be gaps between chunks, so skip ahead if needed. It
* doesn't seem to happen much, but it probably means that a
* "proper" file can have chunks out of order. Why one would want
* that an good question (but files with gaps do exist, so who
* knows?), so we don't support that - for now, at least.
*/
file_offset = m4a_check_sample_offset(&demux_res, i, &seek_idx);
if (file_offset > ci->curpos)
{
ci->advance_buffer(file_offset - ci->curpos);
}
else if (file_offset == 0)
{
LOGF("AAC: get_sample_offset error\n");
return CODEC_ERROR;
}
/* Request the required number of bytes from the input buffer */
buffer=ci->request_buffer(&n, FAAD_BYTE_BUFFER_SIZE);
/* Decode one block - returned samples will be host-endian */
ret = NeAACDecDecode(decoder, &frame_info, buffer, n);
/* NeAACDecDecode may sometimes return NULL without setting error. */
if (ret == NULL || frame_info.error > 0) {
LOGF("FAAD: decode error '%s'\n", NeAACDecGetErrorMessage(frame_info.error));
return CODEC_ERROR;
}
/* Advance codec buffer (no need to call set_offset because of this) */
ci->advance_buffer(frame_info.bytesconsumed);
/* Output the audio */
ci->yield();
frame_samples = frame_info.samples >> 1;
if (empty_first_frame)
{
/* Remove the first frame from lead_trim, under the assumption
* that it had the same size as this frame
*/
empty_first_frame = false;
lead_trim -= frame_samples;
if (lead_trim < 0)
{
lead_trim = 0;
}
}
/* Gather number of samples for the decoded frame. */
framelength = frame_samples - lead_trim;
if (i == demux_res.num_sample_byte_sizes - 1)
{
// Size of the last frame
const uint32_t sample_duration = (demux_res.num_time_to_samples > 0) ?
demux_res.time_to_sample[demux_res.num_time_to_samples - 1].sample_duration :
frame_samples;
/* Currently limited to at most one frame of tail_trim.
* Seems to be enough.
*/
if (ci->id3->tail_trim == 0 && sample_duration < frame_samples)
{
/* Subtract lead_trim just in case we decode a file with only
* one audio frame with actual data (lead_trim is usually zero
* here).
*/
framelength = sample_duration - lead_trim;
}
else
{
framelength -= ci->id3->tail_trim;
}
}
if (framelength > 0)
{
ci->pcmbuf_insert(&decoder->time_out[0][lead_trim],
&decoder->time_out[1][lead_trim],
framelength);
sound_samples_done += framelength;
/* Update the elapsed-time indicator */
elapsed_time = (sound_samples_done * 10) / (ci->id3->frequency / 100);
ci->set_elapsed(elapsed_time);
}
if (lead_trim > 0)
{
/* frame_info.samples can be 0 for frame 0. We still want to
* remove it from lead_trim, so do that during frame 1.
*/
if (0 == i && 0 == frame_info.samples)
{
empty_first_frame = true;
}
lead_trim -= frame_samples;
if (lead_trim < 0)
{
lead_trim = 0;
}
}
++i;
}
LOGF("AAC: Decoded %lu samples\n", (unsigned long)sound_samples_done);
return CODEC_OK;
}
