[vorbis-dev] Skipping with vorbisfile playback using DirectSo und

[Chris Parsons]

Sounds like either your machine is too slow or you have some other buffer
issue.  A decode thread is usually ideal so that data can be decoded before
it is needed by the buffer fill operation.  You might be able to get a
sasifactory solution by increasing the number of buffers and using them in a
round-robin fashion 1-2-3-4-1-2-3-4.  Wouldn't do any more than 1/4 sec per
buffer.

Cheers,
Chris

-----Original Message-----
From: Borut Pfeifer [mailto:borut at whiteknucklegames.com]
Sent: Tuesday, September 10, 2002 4:57 PM
To: vorbis-dev at xiph.org
Subject: [vorbis-dev] Skipping with vorbisfile playback using
DirectSound

<p>I'm having a problem trying to write a simple vorbis file player using
DirectSound. The decoding portion is pretty much straight from the
vorbisfile sample code.  The pcm data gets put into one half of a
DirectSound buffer, and as that half is playing, the next half gets filled.
The problem is, there's skipping and some noise when the file is being
played (although some of the music is audible). Could this this caused by
the time spent decoding? Wav files work fine so I'm fairly certain it's not
the playback code itself. I've tried decoding various amounts at one time
but in each case the same thing occurs (although to different degrees).  Is
there something I can do to fix this without adding a separate decoding
thread (or is that going to be necessary)? Or could it be something else?

Thanks,
  Borut

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