TEST_F(ReadAheadSampleBufferTest, emptyWithCapacity) {
mixxx::ReadAheadSampleBuffer sampleBuffer(kCapacity);
EXPECT_TRUE(sampleBuffer.empty());
sampleBuffer.clear();
EXPECT_TRUE(sampleBuffer.empty());
}
TEST_F(ReadAheadSampleBufferTest, shrink) {
mixxx::ReadAheadSampleBuffer sampleBuffer(kCapacity);
SINT writeCount1 = growAndWrite(&sampleBuffer, kCapacity - 10);
EXPECT_EQ(writeCount1, kCapacity - 10);
EXPECT_FALSE(sampleBuffer.empty());
SINT shrinkCount1 = shrinkForReadingAndVerify(&sampleBuffer, 10);
EXPECT_EQ(shrinkCount1, 10);
SINT readCount1 = shrinkAfterWritingAndVerify(&sampleBuffer, 10);
EXPECT_EQ(readCount1, 10);
EXPECT_FALSE(sampleBuffer.empty());
SINT readCount2 = shrinkAfterWritingAndVerify(&sampleBuffer, kCapacity - 40);
EXPECT_EQ(readCount2, kCapacity - 40);
EXPECT_FALSE(sampleBuffer.empty());
SINT readCount3 = shrinkAfterWritingAndVerify(&sampleBuffer, 20);
EXPECT_EQ(readCount3, 10);
EXPECT_TRUE(sampleBuffer.empty());
SINT writeCount2 = growAndWrite(&sampleBuffer, 20);
EXPECT_EQ(writeCount2, 20);
EXPECT_FALSE(sampleBuffer.empty());
SINT shrinkCount2 = shrinkForReadingAndVerify(&sampleBuffer, 21);
EXPECT_EQ(shrinkCount2, 20);
EXPECT_TRUE(sampleBuffer.empty());
}
bool WaveReader::DecodeAudioData()
{
MOZ_ASSERT(OnTaskQueue());
int64_t pos = GetPosition() - mWavePCMOffset;
int64_t len = GetDataLength();
int64_t remaining = len - pos;
NS_ASSERTION(remaining >= 0, "Current wave position is greater than wave file length");
static const int64_t BLOCK_SIZE = 4096;
int64_t readSize = std::min(BLOCK_SIZE, remaining);
int64_t frames = readSize / mFrameSize;
static_assert(uint64_t(BLOCK_SIZE) < UINT_MAX /
sizeof(AudioDataValue) / MAX_CHANNELS,
"bufferSize calculation could overflow.");
const size_t bufferSize = static_cast<size_t>(frames * mChannels);
nsAutoArrayPtr<AudioDataValue> sampleBuffer(new AudioDataValue[bufferSize]);
static_assert(uint64_t(BLOCK_SIZE) < UINT_MAX / sizeof(char),
"BLOCK_SIZE too large for enumerator.");
nsAutoArrayPtr<char> dataBuffer(new char[static_cast<size_t>(readSize)]);
if (!ReadAll(dataBuffer, readSize)) {
return false;
}
// convert data to samples
const char* d = dataBuffer.get();
AudioDataValue* s = sampleBuffer.get();
for (int i = 0; i < frames; ++i) {
for (unsigned int j = 0; j < mChannels; ++j) {
if (mSampleFormat == FORMAT_U8) {
uint8_t v = ReadUint8(&d);
*s++ = UnsignedByteToAudioSample<AudioDataValue>(v);
} else if (mSampleFormat == FORMAT_S16) {
int16_t v = ReadInt16LE(&d);
*s++ = SignedShortToAudioSample<AudioDataValue>(v);
}
}
}
double posTime = BytesToTime(pos);
double readSizeTime = BytesToTime(readSize);
NS_ASSERTION(posTime <= INT64_MAX / USECS_PER_S, "posTime overflow");
NS_ASSERTION(readSizeTime <= INT64_MAX / USECS_PER_S, "readSizeTime overflow");
NS_ASSERTION(frames < INT32_MAX, "frames overflow");
mAudioQueue.Push(new AudioData(pos,
static_cast<int64_t>(posTime * USECS_PER_S),
static_cast<int64_t>(readSizeTime * USECS_PER_S),
static_cast<int32_t>(frames),
sampleBuffer.forget(),
mChannels,
mSampleRate));
return true;
}
QSampleBuffer QSampleBuffer::createMemoryAudioBuffer(int size)
{
if(size < 1) {
size = 1;
}
QSampleBuffer sampleBuffer(AudioBuffer, size, (void*)new jack_default_audio_sample_t[size]);
sampleBuffer._isMemoryBuffer = true;
return sampleBuffer;
}
TEST_F(ReadAheadSampleBufferTest, clear) {
mixxx::ReadAheadSampleBuffer sampleBuffer(kCapacity);
SINT writeCount = growAndWrite(&sampleBuffer, 10);
EXPECT_EQ(writeCount, 10);
EXPECT_FALSE(sampleBuffer.empty());
clear(&sampleBuffer);
EXPECT_TRUE(sampleBuffer.empty());
SINT readCount = shrinkAfterWritingAndVerify(&sampleBuffer, 10);
EXPECT_EQ(readCount, 0);
EXPECT_TRUE(sampleBuffer.empty());
}
void GUI::loadSample(std::string str)
{
string filePath = Glib::build_filename( Glib::get_current_dir(), "samples", str );
SndfileHandle infile( filePath, SFM_READ );
if ( infile.frames() == 0 )
{
cout << "Fileselector::on_button_press_event() Infile.frames == 0" << endl;
return;
}
std::vector<float> sampleBuffer( infile.frames(), 0.0 );
top->getGUI().printTextView("Created vector buffer, reading data in...");
infile.read( &sampleBuffer.at(0) , infile.frames() );
top->getGUI().printTextView( "Creating Audiobuffer instance..." );
// Create a new AudioBuffer
boost::shared_ptr<AudioBuffer> tmp = boost::shared_ptr<AudioBuffer>( new AudioBuffer() );
top->getGUI().printTextView( "Swapping buffers..." );
// swaps the contents of the vectors, audiobuffer will now have the
// loaded sample data
tmp->nonRtSetSample( sampleBuffer );
cout << "Adding instance to Shared..." << endl;
Shared::get()->addAudio( tmp );
// update the waveform
top->getGUI().getWaveview()->setPlaybackBuffer( tmp );
// send the Buffer to DSP:
if( top->getGuiToDsp()->can_write() )
{
top->getGuiToDsp()->write( boost::bind( &DSP::addBuffer, &top->getDSP(), tmp ) );
}
// Manually destroy the local instance of the shared pointer. This is so that
// the use count isn't one higher than it should be. Logically the local
// scoped shared_ptr<> should -1 from the use_count when it goes out of scope,
// but it doesn't unless we manually destroy it.
// That is why we have the manual destructor call here.
tmp.~shared_ptr<AudioBuffer>();
}
void SampleOntoNrrd::Sample(boost::shared_ptr<SceneView> view, const std::string& filePrefix, ElVisFloat targeth)
{
if( !Program.IsValid() )
{
Program = view->AddRayGenerationProgram("SampleOntoNrrd");
}
ElVisFloat3 h = MakeFloat3(targeth, targeth, targeth);
int3 n;
view->GetScene()->GetModel()->CalculateExtents();
WorldPoint minExtent = view->GetScene()->GetModel()->MinExtent();
WorldPoint maxExtent = view->GetScene()->GetModel()->MaxExtent();
ElVisFloat3 d = MakeFloat3(maxExtent.x() - minExtent.x(), maxExtent.y() - minExtent.y(), maxExtent.z() - minExtent.z());
n.x = d.x/h.x + 1;
n.y = d.y/h.y + 1;
n.z = d.z/h.z + 1;
h.x = d.x/(n.x-1);
h.y = d.y/(n.y-1);
h.z = d.z/(n.z-1);
std::cout << "Samples (" << h.x << ", " << h.y << ", " << h.z << ")" << std::endl;
std::cout << "Samples per direction (" << n.x << ", " << n.y << ", " << n.z << ")" << std::endl;
std::string nrrdHeaderFileName = filePrefix + ".nhdr";
std::string nrrdDataFileName = filePrefix + ".raw";
boost::filesystem::path p(nrrdDataFileName);
std::ofstream nrrdHeaderFile(nrrdHeaderFileName.c_str(), std::ios::out);
FILE* nrrdDataFile = fopen(nrrdDataFileName.c_str(), "wb");
nrrdHeaderFile << "NRRD0001" << std::endl;
nrrdHeaderFile << "type: float" << std::endl;
nrrdHeaderFile << "dimension: 3" << std::endl;
nrrdHeaderFile << "sizes: " << n.x << " " << n.y << " " << n.z << std::endl;
nrrdHeaderFile << "encoding: raw" << std::endl;
nrrdHeaderFile << "datafile: ./" << p.filename().string() << std::endl;
nrrdHeaderFile << "endian: little" << std::endl;
nrrdHeaderFile << "space dimension: 3" << std::endl;
nrrdHeaderFile << "space directions: " << "(" << h.x << ",0,0) " << "(0," << h.y << ",0) " << "(0,0," << h.z << ")" << std::endl;
nrrdHeaderFile << "space origin: (" << minExtent.x() << ", " << minExtent.y() << ", " << minExtent.z() << ")" << std::endl;
nrrdHeaderFile << std::endl;
nrrdHeaderFile.close();
optixu::Context context = view->GetContext();
SetFloat(context["SampleOntoNrrdH"], h);
int bufferSize = n.x*n.y;
OptiXBuffer<ElVisFloat> sampleBuffer("SampleOntoNrrdSamples");
sampleBuffer.SetContext(context);
sampleBuffer.SetDimensions(n.x, n.y);
float* convertBuffer = new float[n.x*n.y];
SetFloat(context["SampleOntoNrrdMinExtent"], minExtent);
SetFloat(context["SampleOntoNrrdMissValue"], std::numeric_limits<ElVisFloat>::signaling_NaN());
std::cout << "Validating and compiling." << std::endl;
context->validate();
context->compile();
std::cout << "Done validating and compiling." << std::endl;
try
{
for(int i = 0; i < n.z; ++i)
{
context["SampleOntoNrrdPlane"]->setInt(i);
std::cout << "Sampling " << i << " of " << n.z-1 << std::endl;
context->launch(Program.Index, n.x, n.y);
std::cout << "Done sampling." << std::endl;
BOOST_AUTO(data, sampleBuffer.Map());
for(unsigned int i = 0; i < n.x*n.y; ++i)
{
convertBuffer[i] = data[i];
}
fwrite(convertBuffer, sizeof(float), bufferSize, nrrdDataFile);
}
}
catch(optixu::Exception& e)
{
std::cout << "Exception encountered rendering primary rays." << std::endl;
std::cerr << e.getErrorString() << std::endl;
std::cout << e.getErrorString().c_str() << std::endl;
}
catch(std::exception& e)
{
std::cout << "Exception encountered rendering primary rays." << std::endl;
std::cout << e.what() << std::endl;
}
catch(...)
{
std::cout << "Exception encountered rendering primary rays." << std::endl;
}
delete [] convertBuffer;
fclose(nrrdDataFile);
}
TEST_F(ReadAheadSampleBufferTest, readWriteTrim) {
mixxx::ReadAheadSampleBuffer sampleBuffer(kCapacity);
SINT writeCount1 = growAndWrite(&sampleBuffer, kCapacity + 10);
// Buffer is completely filled with samples
EXPECT_EQ(writeCount1, kCapacity);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity);
EXPECT_EQ(sampleBuffer.writableLength(), 0);
SINT readCount1 = shrinkForReadingAndVerify(&sampleBuffer, kCapacity - 10);
// Buffer contains the remaining 10 samples, but is still full
EXPECT_EQ(readCount1, kCapacity - 10);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity - readCount1);
EXPECT_EQ(sampleBuffer.writableLength(), 0);
SINT writeCount2 = growAndWrite(&sampleBuffer, kCapacity);
// Impossible to write more samples
EXPECT_EQ(writeCount2, 0);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity - readCount1);
EXPECT_EQ(sampleBuffer.writableLength(), 0);
// Trim buffer contents by reallocation
mixxx::ReadAheadSampleBuffer(sampleBuffer).swap(sampleBuffer);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity - readCount1);
EXPECT_EQ(sampleBuffer.writableLength(), readCount1);
// Refill Buffer with samples
SINT writeCount3 = growAndWrite(&sampleBuffer, kCapacity);
EXPECT_EQ(writeCount3, readCount1);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity);
EXPECT_EQ(sampleBuffer.writableLength(), 0);
// Read from the end
SINT readCount2 = shrinkAfterWritingAndVerify(&sampleBuffer, readCount1);
EXPECT_EQ(readCount2, readCount1);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity - readCount1);
EXPECT_EQ(sampleBuffer.writableLength(), readCount1);
// Trim buffer contents by reallocation has no effect
mixxx::ReadAheadSampleBuffer(sampleBuffer).swap(sampleBuffer);
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity - readCount1);
EXPECT_EQ(sampleBuffer.writableLength(), readCount1);
// Refill Buffer with samples
SINT writeCount4 = growAndWrite(&sampleBuffer, kCapacity);
EXPECT_EQ(writeCount4, readCount2); // buffer has been refilled
EXPECT_FALSE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), kCapacity);
EXPECT_EQ(sampleBuffer.writableLength(), 0);
// Read whole buffer
SINT readCount3 = shrinkAfterWritingAndVerify(&sampleBuffer, kCapacity + 10);
EXPECT_EQ(readCount3, kCapacity);
EXPECT_TRUE(sampleBuffer.empty());
EXPECT_EQ(sampleBuffer.readableLength(), 0);
EXPECT_EQ(sampleBuffer.writableLength(), kCapacity);
}
HRESULT CPGSSub::ParseSample(REFERENCE_TIME rtStart, REFERENCE_TIME rtStop, BYTE* pData, size_t nLen)
{
CheckPointer(pData, E_POINTER);
CAutoLock cAutoLock(&m_csCritSec);
CGolombBuffer sampleBuffer(pData, nLen);
while (!sampleBuffer.IsEOF()) {
if (m_nCurSegment == NO_SEGMENT) {
HDMV_SEGMENT_TYPE nSegType = (HDMV_SEGMENT_TYPE)sampleBuffer.ReadByte();
unsigned short nUnitSize = sampleBuffer.ReadShort();
nLen -= 3;
switch (nSegType) {
case PALETTE:
case OBJECT:
case PRESENTATION_SEG:
case END_OF_DISPLAY:
m_nCurSegment = nSegType;
AllocSegment(nUnitSize);
break;
case WINDOW_DEF:
case INTERACTIVE_SEG:
case HDMV_SUB1:
case HDMV_SUB2:
// Ignored stuff...
sampleBuffer.SkipBytes(nUnitSize);
break;
default:
return VFW_E_SAMPLE_REJECTED;
}
}
if (m_nCurSegment != NO_SEGMENT) {
if (m_nSegBufferPos < m_nSegSize) {
size_t nSize = std::min(m_nSegSize - m_nSegBufferPos, nLen);
sampleBuffer.ReadBuffer(m_pSegBuffer + m_nSegBufferPos, nSize);
m_nSegBufferPos += nSize;
}
if (m_nSegBufferPos >= m_nSegSize) {
CGolombBuffer SegmentBuffer(m_pSegBuffer, m_nSegSize);
switch (m_nCurSegment) {
case PALETTE:
TRACE_PGSSUB(_T("CPGSSub:PALETTE %s\n"), ReftimeToString(rtStart));
ParsePalette(&SegmentBuffer, m_nSegSize);
break;
case OBJECT:
TRACE_PGSSUB(_T("CPGSSub:OBJECT %s\n"), ReftimeToString(rtStart));
ParseObject(&SegmentBuffer, m_nSegSize);
break;
case PRESENTATION_SEG:
TRACE_PGSSUB(_T("CPGSSub:PRESENTATION_SEG %s (size=%d)\n"), ReftimeToString(rtStart), m_nSegSize);
if (rtStart == INVALID_TIME) {
break;
}
// Update the timestamp for the previous segment
UpdateTimeStamp(rtStart);
// Parse the new presentation segment
ParsePresentationSegment(rtStart, &SegmentBuffer);
break;
case WINDOW_DEF:
//TRACE_PGSSUB(_T("CPGSSub:WINDOW_DEF %s\n"), ReftimeToString(rtStart));
break;
case END_OF_DISPLAY:
TRACE_PGSSUB(_T("CPGSSub:END_OF_DISPLAY %s\n"), ReftimeToString(rtStart));
// Enqueue the current presentation segment if any
EnqueuePresentationSegment();
break;
default:
TRACE_PGSSUB(_T("CPGSSub:UNKNOWN Seg %d %s\n"), m_nCurSegment, ReftimeToString(rtStart));
}
m_nCurSegment = NO_SEGMENT;
}
}
}
return S_OK;
}
void BookWriter::write(const MultiSignal& signal, const MultiChannelResult& result) const {
BookHeader headerStart;
BookDataHeader headerData;
BookDataSignalHeader headerSignal;
BookDataAtomsHeader headerAtoms;
BookDataAtomHeader headerAtom;
FILE* file = fopen(pathToBookFile.c_str(), "wb");
if (!file) {
throw Exception("couldNotCreateOutputFile");
}
const int C = signal.channels.size();
const int N = C ? signal.channels.front().samples.size() : 0;
setBE(headerStart.channelCount, C);
setBE(headerStart.dictionarySize, 0);
setBE(headerStart.energyPercent, 100.0);
setBE(headerStart.iterationCount, 1);
setBE(headerStart.pointsPerMicrovolt, 1.0);
setBE(headerStart.freqSampling, C ? signal.channels.front().freqSampling : 0.0);
fwrite(&headerStart, sizeof headerStart, 1, file);
long headerDataPosition = ftell(file);
setBE(headerData.epochNumber, 1);
setBE(headerData.sampleCount, N);
fwrite(&headerData, sizeof headerData, 1, file);
std::vector<float> sampleBuffer(N);
std::vector<float> paramsBuffer;
for (int c=0; c<C; ++c) {
setBE(headerSignal.channelNumber, c+1);
setBE(headerSignal.len, sizeof headerSignal.channelNumber + sizeof(float) * N);
fwrite(&headerSignal, sizeof headerSignal, 1, file);
for (int i=0; i<N; ++i) {
setBE(sampleBuffer[i], signal.channels[c].samples[i]);
}
fwrite(sampleBuffer.data(), sizeof(float), N, file);
long headerAtomsPosition = ftell(file);
setBE(headerAtoms.channelNumber, c+1);
fwrite(&headerAtoms, sizeof headerAtoms, 1, file);
for (const Atom& atom : result[c]) {
const size_t P = atom.params.size();
setBE(headerAtom.len, sizeof(float) * P);
setBE(headerAtom.type, atom.type);
fwrite(&headerAtom, sizeof headerAtom, 1, file);
paramsBuffer.resize(atom.params.size());
for (size_t p=0; p<P; ++p) {
setBE(paramsBuffer[p], atom.params[p]);
}
fwrite(paramsBuffer.data(), sizeof(float), P, file);
}
long currentPosition = ftell(file);
fseek(file, headerAtomsPosition, SEEK_SET);
setBE(headerAtoms.len, currentPosition - headerAtomsPosition - 5);
fwrite(&headerAtoms, sizeof headerAtoms, 1, file);
fseek(file, currentPosition, SEEK_SET);
}
long currentPosition = ftell(file);
fseek(file, headerDataPosition, SEEK_SET);
setBE(headerData.len, currentPosition - headerDataPosition - 5);
fwrite(&headerData, sizeof headerData, 1, file);
fseek(file, currentPosition, SEEK_SET);
fclose(file);
}