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Added method BufferingAudioReader::setReadTimeout()

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This commit is contained in:
jules 2013-03-16 19:16:43 +00:00
parent c0bdb4954b
commit 4dcc5bcd1d
2 changed files with 26 additions and 4 deletions
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22
modules/juce_audio_formats/format/juce_BufferingAudioFormatReader.cpp
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@ -49,9 +49,15 @@ BufferingAudioReader::~BufferingAudioReader()
thread.removeTimeSliceClient (this);
}
void BufferingAudioReader::setReadTimeout (int timeoutMilliseconds) noexcept
{
timeoutMs = timeoutMilliseconds;
}
bool BufferingAudioReader::readSamples (int** destSamples, int numDestChannels, int startOffsetInDestBuffer,
int64 startSampleInFile, int numSamples)
{
const uint32 startTime = Time::getMillisecondCounter();
clearSamplesBeyondAvailableLength (destSamples, numDestChannels, startOffsetInDestBuffer,
startSampleInFile, numSamples, lengthInSamples);
@ -84,11 +90,19 @@ bool BufferingAudioReader::readSamples (int** destSamples, int numDestChannels,
}
else
{
for (int j = 0; j < numDestChannels; ++j)
if (float* dest = (float*) destSamples[j])
FloatVectorOperations::clear (dest + startOffsetInDestBuffer, numSamples);
if (timeoutMs >= 0 && Time::getMillisecondCounter() >= startTime + timeoutMs)
{
for (int j = 0; j < numDestChannels; ++j)
if (float* dest = (float*) destSamples[j])
FloatVectorOperations::clear (dest + startOffsetInDestBuffer, numSamples);
break;
break;
}
else
{
ScopedUnlock ul (lock);
Thread::yield();
}
}
}

8
modules/juce_audio_formats/format/juce_BufferingAudioFormatReader.h
View file

@ -53,6 +53,13 @@ public:
~BufferingAudioReader();
/** Sets a number of milliseconds that the reader can block for in its readSamples()
method before giving up and returning silence.
A value of less that 0 means "wait forever".
The default timeout is 0.
*/
void setReadTimeout (int timeoutMilliseconds) noexcept;
bool readSamples (int** destSamples, int numDestChannels, int startOffsetInDestBuffer,
int64 startSampleInFile, int numSamples);
@ -61,6 +68,7 @@ private:
TimeSliceThread& thread;
int64 nextReadPosition;
const int numBlocks;
int timeoutMs;
enum { samplesPerBlock = 32768 };