bool RDHPIPlayStream::formatSupported()
{
switch(getFormatTag()) {
case WAVE_FORMAT_PCM:
switch(getBitsPerSample()) {
case 8:
return formatSupported(RDWaveFile::Pcm8);
break;
case 16:
return formatSupported(RDWaveFile::Pcm16);
break;
default:
return false;
}
break;
case WAVE_FORMAT_MPEG:
switch(getHeadLayer()) {
case 1:
return formatSupported(RDWaveFile::MpegL1);
break;
case 2:
return formatSupported(RDWaveFile::MpegL2);
break;
case 3:
return formatSupported(RDWaveFile::MpegL3);
break;
default:
return false;
}
break;
default:
return false;
}
}
float
RIFFAudioFile::convertBytesToSample(const unsigned char *ubuf)
{
switch (getBitsPerSample()) {
case 8: {
// WAV stores 8-bit samples unsigned, other sizes signed.
return (float)(ubuf[0] - 128.0) / 128.0;
}
case 16: {
// Two's complement little-endian 16-bit integer.
// We convert endianness (if necessary) but assume 16-bit short.
unsigned char b2 = ubuf[0];
unsigned char b1 = ubuf[1];
unsigned int bits = (b1 << 8) + b2;
return (float)(short(bits)) / 32768.0;
}
case 24: {
// Two's complement little-endian 24-bit integer.
// Again, convert endianness but assume 32-bit int.
unsigned char b3 = ubuf[0];
unsigned char b2 = ubuf[1];
unsigned char b1 = ubuf[2];
// Rotate 8 bits too far in order to get the sign bit
// in the right place; this gives us a 32-bit value,
// hence the larger float divisor
unsigned int bits = (b1 << 24) + (b2 << 16) + (b3 << 8);
return (float)(int(bits)) / 2147483648.0;
}
case 32: {
// IEEE floating point
return *(float *)ubuf;
}
default:
return 0.0f;
}
}
/*------------------------------------------------------------------------------
* Initialize the object
*----------------------------------------------------------------------------*/
void
JackDspSource :: init ( const char* name ) throw ( Exception )
{
// Set defaults
ports[0] = NULL; // Left Port
ports[1] = NULL; // Right Port
rb[0] = NULL; // Left Ring Buffer
rb[1] = NULL; // Right Ring Buffer
client = NULL;
auto_connect = false; // Default is to not auto connect the JACK ports
tmp_buffer = NULL; // Buffer big enough for one 'read' of audio
// Auto connect the ports ?
if ( Util::strEq( name, "jack_auto", 9) ) {
auto_connect = true;
}
// Check the sample size
if (getBitsPerSample() != 16) {
throw Exception( __FILE__, __LINE__,
"JackDspSource doesn't support non 16-bit samples");
}
}
void PlayStream::pause()
{
#ifdef RPLAYSTREAM_SHOW_SLOTS
printf("pause() -- Card: %d Stream: %d\n",card_number,stream_number);
#endif // RPLAYSTREAM_SHOW_SLOTS
uint16_t state;
uint32_t buffer_size;
uint32_t data_to_play;
uint32_t reserved;
if(!is_open) {
return;
}
if(playing) {
HPICall(HPI_OutStreamStop(NULL,hpi_stream));
clock->stop();
HPICall(HPI_OutStreamGetInfoEx(NULL,hpi_stream,&state,&buffer_size,
&data_to_play,&samples_played,&reserved));
switch(getFormatTag()) {
case WAVE_FORMAT_PCM:
samples_pending=data_to_play/(getChannels()*getBitsPerSample()/8);
break;
case WAVE_FORMAT_MPEG:
samples_pending=
1152*data_to_play/(144*getHeadBitRate()/getSamplesPerSec());
break;
}
playing=false;
is_paused=true;
stream_state=PlayStream::Paused;
if(!restart_transport) {
emit paused();
emit stateChanged(card_number,stream_number,(int)stream_state);
}
}
}
bool PlayStream::play()
{
#ifdef RPLAYSTREAM_SHOW_SLOTS
printf("play() -- Card: %d Stream: %d\n",card_number,stream_number);
#endif // RPLAYSTREAM_SHOW_SLOTS
if(!is_open) {
printf("FAIL1\n");
return false;
}
if((!playing)&&(!is_paused)) {
HPICall(HPI_OutStreamSetTimeScale(NULL,hpi_stream,
(uint16_t)((1000.0/(double)play_speed)*
HPI_OSTREAM_TIMESCALE_UNITS)));
if(!HPICall(HPI_OutStreamGetInfoEx(NULL,hpi_stream,
&state,&buffer_size,&data_to_play,
&samples_played,&reserved))) {
printf("FAIL3\n");
return false;
}
fragment_size=buffer_size/4;
if(fragment_size>MAX_FRAGMENT_SIZE) {
fragment_size=MAX_FRAGMENT_SIZE;
}
if(pdata!=NULL) {
delete pdata;
}
pdata=(uint8_t *)malloc(fragment_size);
if(pdata==NULL) {
printf("FAIL4\n");
return false;
}
switch(getFormatTag()) {
case WAVE_FORMAT_PCM:
case WAVE_FORMAT_VORBIS:
switch(getBitsPerSample()) {
case 8:
HPICall(HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM8_UNSIGNED,
getSamplesPerSec(),0,0));
break;
case 16:
HPICall(HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM16_SIGNED,
getSamplesPerSec(),0,0));
break;
case 32:
HPICall(HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM32_SIGNED,
getSamplesPerSec(),0,0));
break;
default:
HPICall(HPI_AdapterClose(NULL,card_number));
return false;
break;
}
break;
case WAVE_FORMAT_MPEG:
switch(getHeadLayer()) {
case 1:
HPICall(HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_MPEG_L1,getSamplesPerSec(),
getHeadBitRate(),getHeadFlags()));
break;
case 2:
HPICall(HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_MPEG_L2,getSamplesPerSec(),
getHeadBitRate(),getHeadFlags()));
break;
case 3:
HPICall(HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_MPEG_L3,getSamplesPerSec(),
getHeadBitRate(),getHeadFlags()));
break;
default:
HPI_AdapterClose(NULL,card_number);
return false;
}
break;
default:
return false;
}
#if HPI_VER < 0x00030500
if(HPI_DataCreate(&hpi_data,&format,pdata,fragment_size)!=0) {
return false;
}
#endif
}
if(!is_paused) {
memset(pdata,0,fragment_size);
left_to_write=getDataLength()-seekWave(0,SEEK_CUR);
if(left_to_write<fragment_size) {
read_bytes = left_to_write;
left_to_write=0;
stopping=true;
}
else {
read_bytes=fragment_size;
left_to_write-=fragment_size;
}
readWave(pdata,read_bytes);
#if HPI_VER > 0x00030500
HPICall(HPI_OutStreamWriteBuf(NULL,hpi_stream,pdata,read_bytes,&format));
#else
HPICall(HPI_DataCreate(&hpi_data,&format,pdata,read_bytes));
HPICall(HPI_OutStreamWrite(NULL,hpi_stream,&hpi_data));
#endif
if(HPI_OutStreamStart(NULL,hpi_stream)!=0) {
printf("FAIL11\n");
return false;
}
clock->start(50);
clock->start(FRAGMENT_TIME);
playing=true;
is_paused=false;
stopping=false;
if(play_length>0) {
play_timer->start(play_length,true);
start_time=QTime::currentTime();
}
stream_state=PlayStream::Playing;
if(!restart_transport) {
emit isStopped(false);
emit played();
emit stateChanged(card_number,stream_number,(int)stream_state);
}
}
if((!playing)&(is_paused|repositioned)) {
HPICall(HPI_OutStreamStart(NULL,hpi_stream));
clock->start(FRAGMENT_TIME);
playing=true;
stopping=false;
is_paused=false;
stream_state=PlayStream::Playing;
if(!restart_transport) {
emit isStopped(false);
emit played();
emit stateChanged(card_number,stream_number,(int)stream_state);
}
}
return true;
}
/*------------------------------------------------------------------------------
* Open the audio source
*----------------------------------------------------------------------------*/
bool
AlsaDspSource :: open ( void ) throw ( Exception )
{
unsigned int u;
snd_pcm_format_t format;
snd_pcm_hw_params_t *hwParams;
if ( isOpen() ) {
return false;
}
switch ( getBitsPerSample() ) {
case 8:
format = SND_PCM_FORMAT_S8;
break;
case 16:
format = SND_PCM_FORMAT_S16;
break;
default:
return false;
}
if (snd_pcm_open(&captureHandle, pcmName, SND_PCM_STREAM_CAPTURE, 0) < 0) {
captureHandle = 0;
return false;
}
if (snd_pcm_hw_params_malloc(&hwParams) < 0) {
close();
throw Exception( __FILE__, __LINE__, "can't alloc hardware "\
"parameter structure");
}
if (snd_pcm_hw_params_any(captureHandle, hwParams) < 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't initialize hardware "\
"parameter structure");
}
if (snd_pcm_hw_params_set_access(captureHandle, hwParams,
SND_PCM_ACCESS_RW_INTERLEAVED) < 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set access type");
}
if (snd_pcm_hw_params_set_format(captureHandle, hwParams, format) < 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set sample format");
}
u = getSampleRate();
if (snd_pcm_hw_params_set_rate_near(captureHandle, hwParams, &u, 0) < 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set sample rate", u);
}
u = getChannel();
if (snd_pcm_hw_params_set_channels(captureHandle, hwParams, u) < 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set channels", u);
}
u = 4;
if (snd_pcm_hw_params_set_periods_near(captureHandle, hwParams, &u, 0)
< 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set interrupt frequency");
}
u = getBufferTime();
if (snd_pcm_hw_params_set_buffer_time_near(captureHandle, hwParams, &u, 0)
< 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set buffer size");
}
if (snd_pcm_hw_params(captureHandle, hwParams) < 0) {
snd_pcm_hw_params_free(hwParams);
close();
throw Exception( __FILE__, __LINE__, "can't set hardware parameters");
}
snd_pcm_hw_params_free(hwParams);
if (snd_pcm_prepare(captureHandle) < 0) {
close();
throw Exception( __FILE__, __LINE__, "can't prepare audio interface "\
"for use");
}
bytesPerFrame = getChannel() * getBitsPerSample() / 8;
return true;
}
status_t FLACParser::init()
{
// setup libFLAC parser
mDecoder = FLAC__stream_decoder_new();
if (mDecoder == NULL) {
// The new should succeed, since probably all it does is a malloc
// that always succeeds in Android. But to avoid dependence on the
// libFLAC internals, we check and log here.
LOGE("new failed");
return NO_INIT;
}
FLAC__stream_decoder_set_md5_checking(mDecoder, false);
FLAC__stream_decoder_set_metadata_ignore_all(mDecoder);
FLAC__stream_decoder_set_metadata_respond(
mDecoder, FLAC__METADATA_TYPE_STREAMINFO);
FLAC__stream_decoder_set_metadata_respond(
mDecoder, FLAC__METADATA_TYPE_PICTURE);
FLAC__stream_decoder_set_metadata_respond(
mDecoder, FLAC__METADATA_TYPE_VORBIS_COMMENT);
FLAC__StreamDecoderInitStatus initStatus;
initStatus = FLAC__stream_decoder_init_stream(
mDecoder,
read_callback, seek_callback, tell_callback,
length_callback, eof_callback, write_callback,
metadata_callback, error_callback, (void *) this);
if (initStatus != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
// A failure here probably indicates a programming error and so is
// unlikely to happen. But we check and log here similarly to above.
LOGE("init_stream failed %d", initStatus);
return NO_INIT;
}
// parse all metadata
if (!FLAC__stream_decoder_process_until_end_of_metadata(mDecoder)) {
LOGE("end_of_metadata failed");
return NO_INIT;
}
if (mStreamInfoValid) {
// check channel count
switch (getChannels()) {
case 1:
case 2:
break;
default:
LOGE("unsupported channel count %u", getChannels());
return NO_INIT;
}
// check bit depth
switch (getBitsPerSample()) {
case 8:
case 16:
case 24:
break;
default:
LOGE("unsupported bits per sample %u", getBitsPerSample());
return NO_INIT;
}
// check sample rate
switch (getSampleRate()) {
case 8000:
case 11025:
case 12000:
case 16000:
case 22050:
case 24000:
case 32000:
case 44100:
case 48000:
break;
default:
// 96000 would require a proper downsampler in AudioFlinger
LOGE("unsupported sample rate %u", getSampleRate());
return NO_INIT;
}
// configure the appropriate copy function, defaulting to trespass
static const struct {
unsigned mChannels;
unsigned mBitsPerSample;
void (*mCopy)(short *dst, const int *const *src, unsigned nSamples);
} table[] = {
{ 1, 8, copyMono8 },
{ 2, 8, copyStereo8 },
{ 1, 16, copyMono16 },
{ 2, 16, copyStereo16 },
{ 1, 24, copyMono24 },
{ 2, 24, copyStereo24 },
};
for (unsigned i = 0; i < sizeof(table)/sizeof(table[0]); ++i) {
if (table[i].mChannels == getChannels() &&
table[i].mBitsPerSample == getBitsPerSample()) {
mCopy = table[i].mCopy;
break;
}
}
// populate track metadata
if (mTrackMetadata != 0) {
mTrackMetadata->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
mTrackMetadata->setInt32(kKeyChannelCount, getChannels());
mTrackMetadata->setInt32(kKeySampleRate, getSampleRate());
// sample rate is non-zero, so division by zero not possible
mTrackMetadata->setInt64(kKeyDuration,
(getTotalSamples() * 1000000LL) / getSampleRate());
}
} else {
LOGE("missing STREAMINFO");
return NO_INIT;
}
if (mFileMetadata != 0) {
mFileMetadata->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
}
return OK;
}
bool RDHPIRecordStream::recordReady()
{
HW16 hpi_error=0;
char hpi_text[200];
if(debug) {
printf("RDHPIRecordStream: received recordReady()\n");
}
if(!is_open) {
return false;
}
if((!is_recording)&&(!is_paused)) {
resetWave();
if(HPI_InStreamGetInfoEx(hpi_subsys,hpi_stream,
&state,&buffer_size,&data_recorded,
&samples_recorded,&reserved)!=0) {
if(debug) {
printf("RDHPIRecordStream: HPI_InStreamGetInfoEx() failed\n");
}
return false;
}
fragment_size=buffer_size/4;
if(fragment_size>192000) { // ALSA Compatibility Limitation
fragment_size=192000;
}
fragment_time=(1000*fragment_size)/(getAvgBytesPerSec());
if(pdata!=NULL) {
delete pdata;
}
pdata=(HW8 *)malloc(fragment_size);
if(pdata==NULL) {
if(debug) {
printf("RDHPIRecordStream: couldn't allocate buffer\n");
}
return false;
}
switch(getFormatTag()) {
case WAVE_FORMAT_PCM:
if(debug) {
printf("RDHPIRecordStream: using PCM%d format\n",
getBitsPerSample());
}
switch(getBitsPerSample()) {
case 8:
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM8_UNSIGNED,getSamplesPerSec(),
0,0);
break;
case 16:
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM16_SIGNED,getSamplesPerSec(),
0,0);
break;
case 32:
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM32_SIGNED,getSamplesPerSec(),
0,0);
break;
default:
if(debug) {
printf("RDHPIRecordStream: unsupported sample size\n");
}
return false;
}
break;
case WAVE_FORMAT_MPEG:
if(debug) {
printf("RDHPIRecordStream: using MPEG-1 Layer %d\n",getHeadLayer());
}
switch(getHeadLayer()) {
case 1:
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_MPEG_L1,getSamplesPerSec(),
getHeadBitRate(),getHeadFlags());
break;
case 2:
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_MPEG_L2,getSamplesPerSec(),
getHeadBitRate(),getHeadFlags());
break;
case 3:
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_MPEG_L3,getSamplesPerSec(),
getHeadBitRate(),getHeadFlags());
break;
default:
HPI_AdapterClose(hpi_subsys,card_number);
if(debug) {
printf("RDHPIRecordStream: invalid MPEG-1 layer\n");
}
return false;
}
if(getMextChunk()) {
setMextHomogenous(true);
setMextPaddingUsed(false);
setMextHackedBitRate(true);
setMextFreeFormat(false);
setMextFrameSize(144*getHeadBitRate()/getSamplesPerSec());
setMextAncillaryLength(5);
setMextLeftEnergyPresent(true);
if(getChannels()>1) {
setMextRightEnergyPresent(true);
}
else {
setMextRightEnergyPresent(false);
}
setMextPrivateDataPresent(false);
}
break;
case WAVE_FORMAT_VORBIS:
if(debug) {
printf("RDHPIRecordStream: using OggVorbis\n");
}
HPI_FormatCreate(&format,getChannels(),
HPI_FORMAT_PCM16_SIGNED,getSamplesPerSec(),
0,0);
break;
default:
if(debug) {
printf("RDHPIRecordStream: invalid format tag\n");
}
return false;
break;
}
if((hpi_error=HPI_InStreamQueryFormat(hpi_subsys,hpi_stream,
&format))!=0) {
if(debug) {
HPI_GetErrorText(hpi_error,hpi_text);
printf("Num: %d\n",hpi_error);
printf("RDHPIRecordStream: %s\n",hpi_text);
}
return false;
}
}
#if HPI_VER < 0x00030500
HPI_DataCreate(&hpi_data,&format,pdata,fragment_size);
#endif
HPI_InStreamSetFormat(hpi_subsys,hpi_stream,&format);
HPI_InStreamStart(hpi_subsys,hpi_stream);
// clock->start(2*fragment_time/3);
clock->start(100);
is_ready=true;
is_recording=false;
is_paused=false;
stopping=false;
emit isStopped(false);
emit ready();
emit stateChanged(card_number,stream_number,1); // RecordReady
if(debug) {
printf("RDHPIRecordStream: emitted isStopped(false)\n");
printf("RDHPIRecordStream: emitted ready()\n");
printf("RDHPIRecordStream: emitted stateChanged(%d,%d,RDHPIRecordStream::RecordReady)\n",card_number,stream_number);
}
return true;
}
bool
WAVAudioFile::decode(const unsigned char *ubuf,
size_t sourceBytes,
size_t targetSampleRate,
size_t targetChannels,
size_t nframes,
std::vector<float *> &target,
bool adding)
{
size_t sourceChannels = getChannels();
size_t sourceSampleRate = getSampleRate();
size_t fileFrames = sourceBytes / getBytesPerFrame();
int bitsPerSample = getBitsPerSample();
if (bitsPerSample != 8 &&
bitsPerSample != 16 &&
bitsPerSample != 24 &&
bitsPerSample != 32) { // 32-bit is IEEE-float (enforced in RIFFAudioFile)
RG_WARNING << "WAVAudioFile::decode: unsupported " << bitsPerSample << "-bit sample size";
return false;
}
#ifdef DEBUG_DECODE
RG_DEBUG << "WAVAudioFile::decode: " << sourceBytes << " bytes -> " << nframes << " frames, SSR " << getSampleRate() << ", TSR " << targetSampleRate << ", sch " << getChannels() << ", tch " << targetChannels;
#endif
// If we're reading a stereo file onto a mono target, we mix the
// two channels. If we're reading mono to stereo, we duplicate
// the mono channel. Otherwise if the numbers of channels differ,
// we just copy across the ones that do match and zero the rest.
bool reduceToMono = (targetChannels == 1 && sourceChannels == 2);
for (size_t ch = 0; ch < sourceChannels; ++ch) {
if (!reduceToMono || ch == 0) {
if (ch >= targetChannels)
break;
if (!adding)
memset(target[ch], 0, nframes * sizeof(float));
}
int tch = ch; // target channel for this data
if (reduceToMono && ch == 1) {
tch = 0;
}
float ratio = 1.0;
if (sourceSampleRate != targetSampleRate) {
ratio = float(sourceSampleRate) / float(targetSampleRate);
}
for (size_t i = 0; i < nframes; ++i) {
size_t j = i;
if (sourceSampleRate != targetSampleRate) {
j = size_t(i * ratio);
}
if (j >= fileFrames)
j = fileFrames - 1;
float sample = convertBytesToSample
(&ubuf[(bitsPerSample / 8) * (ch + j * sourceChannels)]);
target[tch][i] += sample;
}
}
// Now deal with any excess target channels
for (size_t ch = sourceChannels; ch < targetChannels; ++ch) {
if (ch == 1 && targetChannels == 2) {
// copy mono to stereo
if (!adding) {
memcpy(target[ch], target[ch - 1], nframes * sizeof(float));
} else {
for (size_t i = 0; i < nframes; ++i) {
target[ch][i] += target[ch - 1][i];
}
}
} else {
if (!adding) {
memset(target[ch], 0, nframes * sizeof(float));
}
}
}
return true;
}