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We setup AudioUnit for sound recording specifying the input callback function with prototype of AURenderCallback. Inside the callback we use AudioUnitRender with the same timestamp and flags to render audio data. We need to render to a circular buffer which has a head and tail index, consumed by another thread. Currently we create a shadow buffer, render to it and then copy bytes to the circular buffer by breaking up the data to wrap around as necessary. Ideally we want to render to the circular buffer directly to avoid this extra copy. I see 1 possible way: When invoking AudioUnitRender inside the callback, specify numberFrames which can be adjusted for size of remaining circular buffer. (potentially less than numberFrames supplied with AURenderCallback) But with this approach when next time AURenderCallBack is invoked will I get the data immediately starting from where rendering finished last time? Do I need to adjust timestamp for this? If so any pointers how to do so? I'll appreciate help in this regard. Thanks, Bankim. _______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
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