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Editorial Team
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Asked: 2026-06-06T01:13:31+00:00

so i have code that reads from an AVAsset using kCVPixelFormat_32BGRA. I get the

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so i have code that reads from an AVAsset using kCVPixelFormat_32BGRA. I get the next sample buffer by calling 

[vidInput copyNextSamplebuffer];

Then I proceed with Apple’s code on their AVFoundation guide http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/05_MediaRepresentations.html#//apple_ref/doc/uid/TP40010188-CH2-SW4

What troubles me is that sometimes 

size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer);

gives me something that isnt the width*4, and as a result, when I attempt to use it, the image is teared very badly. Has anyone experienced anything similar?

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1 Answer

  1. Editorial Team

    @Rhythmic was spot on – if you want to look at another question this is discussed (in more detail): iOS CVImageBuffer distorted from AVCaptureSessionDataOutput with AVCaptureSessionPresetPhoto

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