AudioToolbox: shift playback position
AudioToolbox: shift playback position
- Subject: AudioToolbox: shift playback position
- From: Sergey Shapovalov <email@hidden>
- Date: Mon, 30 Mar 2009 16:55:45 +0400
Hi all.
I'm working on an audio recording / playback application for iPhone, and use Apple's sample project SpeakHere as a starting point. Everything works all right; however, there's just one thing I can't figure out how to do.
While playback, I want to be able to pause playing (via AudioQueuePause), then move to another time moment in the audio record, and resume playback from the new position (via AudioQueueStart). The problem is that I don't understand how to move to a new position.
AudioQueueStart accepts a pointer to AudioTimeStamp as the second parameter. However, when I manually set it up like this:
AudioTimeStamp ats;
ats.mSampleTime = seconds * audioPlayer.audioFormat.mSampleRate;
and pass it to AudioQueueStart, the playback resumes at the position where it was stopped, not at the specified time moment.
Am I doing something wrong? Does anybody know a way how to set playback position properly?
Best regards,
Sergey Shapovalov.
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