{"version":"1.0","type":"rich","title":"Gist 1401245","description":"This example shows a custom audio rendering callback that reverses audio playback in real time. The code implements an `OSStatus TSAudioEngine::render` method that clears output buffers, reads audio data from a file, then reverses the sample order of both channels using the Accelerate framework’s `vDSP_vrvrs`. It also seeks backward through the file with `ExtAudioFileSeek`, resetting to a fixed position every 350,000 frames. The rendering uses `AudioBufferList` structures to handle stereo data, with lock-based synchronization to prevent concurrent access.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-1401245?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}