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  1. PO
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    <p>In startVideoRecording I call (I assume you are calling this at some point)</p> <pre><code>[_capSession startRunning] ; </code></pre> <p>In stopVideoRecording I do not call</p> <pre><code>[_videoWriterInput markAsFinished]; [_videoWriter endSessionAtSourceTime:lastSampleTime]; </code></pre> <p>The markAsFinished is more for use with the block style pull method. See requestMediaDataWhenReadyOnQueue:usingBlock in AVAssetWriterInput for an explanation. The library should calculate the proper timing for interleaving the buffers. </p> <p>You do not need to call endSessionAtSrouceTime. The last time stamp in the sample data will be used after the call to</p> <pre><code>[_videoWriter finishWriting]; </code></pre> <p>I also explicitly check for the type of capture output.</p> <pre><code>else if( captureOutput == _audioOutput) { [self newAudioSample:sampleBuffer]; } </code></pre> <p>Here is what I have. The audio and video come through for me. It is possible I changed something. If this does not work for you then I will post everything I have.</p> <pre><code>-(void) startVideoRecording { if( !_isRecording ) { NSLog(@"start video recording..."); if( ![self setupWriter] ) { NSLog(@"Setup Writer Failed") ; return; } [_capSession startRunning] ; _isRecording = YES; } } -(void) stopVideoRecording { if( _isRecording ) { _isRecording = NO; [_capSession stopRunning] ; if(![_videoWriter finishWriting]) { NSLog(@"finishWriting returned NO") ; } //[_videoWriter endSessionAtSourceTime:lastSampleTime]; //[_videoWriterInput markAsFinished]; //[_audioWriterInput markAsFinished]; NSLog(@"video recording stopped"); } } </code></pre>
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    1. POThis code to write video+audio through AVAssetWriter and AVAssetWriterInputs is not working. Why?
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    1. USSteve McFarlin
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    1. POThis code to write video+audio through AVAssetWriter and AVAssetWriterInputs is not working. Why?
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    1. VO
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    1. COThank you very much Steve, your hints were very very helpful. Now video recording has also audio!
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      1. USkalos
    2. CO@Steve and kalos can you give correct working code where its possible to record both audio and video?
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      1. USsach
    3. COYou may want to take a look at AVCamDemo from the WWDC 2010 sample code.
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      1. USSteve McFarlin
 

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