Mercurial > hg > sv-dependency-builds
diff src/portaudio/bindings/cpp/source/portaudiocpp/BlockingStream.cxx @ 4:e13257ea84a4
Add bzip2, zlib, liblo, portaudio sources
author | Chris Cannam |
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date | Wed, 20 Mar 2013 13:59:52 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/portaudio/bindings/cpp/source/portaudiocpp/BlockingStream.cxx Wed Mar 20 13:59:52 2013 +0000 @@ -0,0 +1,100 @@ +#include "portaudiocpp/BlockingStream.hxx" + +#include "portaudio.h" + +#include "portaudiocpp/StreamParameters.hxx" +#include "portaudiocpp/Exception.hxx" + +namespace portaudio +{ + + // -------------------------------------------------------------------------------------- + + BlockingStream::BlockingStream() + { + } + + BlockingStream::BlockingStream(const StreamParameters ¶meters) + { + open(parameters); + } + + BlockingStream::~BlockingStream() + { + try + { + close(); + } + catch (...) + { + // ignore all errors + } + } + + // -------------------------------------------------------------------------------------- + + void BlockingStream::open(const StreamParameters ¶meters) + { + PaError err = Pa_OpenStream(&stream_, parameters.inputParameters().paStreamParameters(), parameters.outputParameters().paStreamParameters(), + parameters.sampleRate(), parameters.framesPerBuffer(), parameters.flags(), NULL, NULL); + + if (err != paNoError) + { + throw PaException(err); + } + } + + // -------------------------------------------------------------------------------------- + + void BlockingStream::read(void *buffer, unsigned long numFrames) + { + PaError err = Pa_ReadStream(stream_, buffer, numFrames); + + if (err != paNoError) + { + throw PaException(err); + } + } + + void BlockingStream::write(const void *buffer, unsigned long numFrames) + { + PaError err = Pa_WriteStream(stream_, buffer, numFrames); + + if (err != paNoError) + { + throw PaException(err); + } + } + + // -------------------------------------------------------------------------------------- + + signed long BlockingStream::availableReadSize() const + { + signed long avail = Pa_GetStreamReadAvailable(stream_); + + if (avail < 0) + { + throw PaException(avail); + } + + return avail; + } + + signed long BlockingStream::availableWriteSize() const + { + signed long avail = Pa_GetStreamWriteAvailable(stream_); + + if (avail < 0) + { + throw PaException(avail); + } + + return avail; + } + + // -------------------------------------------------------------------------------------- + +} // portaudio + + +