ALSA: Rewrite hw_ptr updaters

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Clean up and improve snd_pcm_update_hw_ptr*() functions.

snd_pcm_update_hw_ptr() tries to detect the unexpected hwptr jumps
more strictly to avoid the position mess-up, which often results in
the bad quality I/O with pulseaudio.

The hw-ptr skip error messages are printed when xrun proc is set to
non-zero.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2009-03-03 17:00:15 +01:00

parent 2450cf51a1

commit ed3da3d9a0

1 changed files with 83 additions and 45 deletions

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sound/core/pcm_lib.c

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