AudioReader: fix nbChannels of output when extract one channel

Clement Champetier · Clement Champetier · commit 0c3bf14e142a · 2015-12-02T11:43:07.000+01:00
No need to call updateOutput AudioReader::method when specify a
channelIndex in constructor.
diff --git a/src/AvTranscoder/reader/AudioReader.cpp b/src/AvTranscoder/reader/AudioReader.cpp
@@ -49,7 +49,7 @@ void AudioReader::init()
 	AudioFrame* srcFrame = static_cast<AudioFrame*>(_srcFrame);
 	// create dst frame
 	_outputSampleRate = srcFrame->desc().getSampleRate();
-	_outputNbChannels = srcFrame->desc().getChannels();
+	_outputNbChannels = (_channelIndex == -1) ? srcFrame->desc().getChannels() : 1;
 	_dstFrame = new AudioFrame( AudioFrameDesc( _outputSampleRate, _outputNbChannels, _outputSampleFormat ) );
 }
 

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,7 @@ void AudioReader::init()`
`49`	`49`	`AudioFrame* srcFrame = static_cast<AudioFrame*>(_srcFrame);`
`50`	`50`	`// create dst frame`
`51`	`51`	`_outputSampleRate = srcFrame->desc().getSampleRate();`
`52`		`- _outputNbChannels = srcFrame->desc().getChannels();`
	`52`	`+ _outputNbChannels = (_channelIndex == -1) ? srcFrame->desc().getChannels() : 1;`
`53`	`53`	`_dstFrame = new AudioFrame( AudioFrameDesc( _outputSampleRate, _outputNbChannels, _outputSampleFormat ) );`
`54`	`54`	`}`
`55`	`55`