AVCompositionDebugVieweriOS
Last Revision: | Version 1.1, 2014-03-11 Minor changes |
Build Requirements: | iOS 7.0 or later |
Runtime Requirements: | iOS 7.0 or later |
This sample application has an AVCompositionDebugView which presents a visual description of the underlying AVComposition, AVVideoComposition and AVAudioMix objects which form the composition made using two clips, adding a cross fade transition in between and audio ramps to the two audio tracks. The visualization provided by the sample can be used as a debugging tool to discover issues with an incorrect composition/video composition. For example: a break in video composition would render black frames to screen, which can easily be detected using the visualization in the sample.
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