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Clarify API/docs by introducing the audio "frame", and add helpers.

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The frame is the interleaved set of one sample for each channel.  Add
some docs and some methods that make working with samples a bit more
convenient.

Adjusted QAudioBuffer to use these helper functions and terminology.

Change-Id: I96db48e659561972d6de2aa19893d29f9a828cd3
Reviewed-by: Dmytro Poplavskiy <dmytro.poplavskiy@nokia.com>
This commit is contained in:
Michael Goddard
2012-07-10 14:26:58 +10:00
committed by Qt by Nokia
parent 68079a5e22
commit 4d13a15bae
7 changed files with 318 additions and 81 deletions
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12
src/multimedia/audio/qaudioformat.h
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@@ -91,6 +91,18 @@ public:
void setSampleType(QAudioFormat::SampleType sampleType);
QAudioFormat::SampleType sampleType() const;
// Helper functions
qint32 bytesForDuration(qint64 duration) const;
qint64 durationForBytes(qint32 byteCount) const;
qint32 bytesForFrames(qint32 frameCount) const;
qint32 framesForBytes(qint32 byteCount) const;
qint32 framesForDuration(qint64 duration) const;
qint64 durationForFrames(qint32 frameCount) const;
int bytesPerFrame() const;
private:
QSharedDataPointer<QAudioFormatPrivate> d;
};