Hello, I am using MediaPlayer to play background music and SoundPool to play sound effects. All Audio data is stored in .ogg file format. Sometimes it happens that the MediaPlayer playback is interrupted for a fraction of a second if SoundPool.play() is called. Whenever this happens, the following two warnings are printed to logcat:
11-04 01:49:05.113: WARN/AudioTrack(51): obtainBuffer timed out (is the CPU pegged?) 0x2b6e8 user=000cc520, server=000cb710 11-04 01:49:05.113: WARN/AudioTrack(51): *** SERIOUS WARNING *** obtainBuffer() timed out but didn't need to be locked. We recovered, but this shouldn't happen (user=000cc520, server=000cb710) Do you have any ideas what could cause the warning messages and/or how to avoid them? I.e. how to prevent SoundPool.play() from interrupting MediaPlayer playback? An other warning that's sometimes appearing is: 11-04 01:55:49.793: WARN/AudioFlinger(51): write blocked for 89 msecs There seems to be no connection to the above messages, but do you have any ideas what causes this message and/or how to avoid it? Here's some more detailed background information, maybe they are useful: My OpenGL powered game is split into three threads: One for rendering, one to take care about the game logic and the main thread to process user input. All Audio data is accessed through a central AudioManager class, which is only used in the game logic thread. (So this does not seem like a threading issue. Needless to say that synchronizing all methods has not solved the problem). The game runs smoothly at ~60 frames per second. According to DDMS the game causes ~33% system load (~10% in kernel space and ~23% in user space) on a G1. Even the idle task gets ~24% CPU time assigned while the game is running and input happens through the touch screen! (So it does not look like a performance problem) The MediaPlayer playback interruption always happens if SoundPool.play () is called in response of a touch screen input. Although touch screen input and SoundPool.play() happen in different threads. I've tried suspending the UI thread for various different delays between 8 and 32 msec after a MotionEvent has been processed, but again, without success... I've spent days optimizing the game and finding the cause of the interrupted MediaPlayer playback, but without success. Now I've run out of ideas. So any advice that could help solving the problem is highly appreciated! Thanks in advance, Mike. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
