[vlc-devel] Re: vlc: svn commit r15494 (zorglub)

[Cyril Deguet]

On Mon, May 01, 2006, Rémi Denis-Courmont wrote:
> Resampling typically occurs at the beginning only. I presume this is due 
> to the stress while VLC starts all the plugins involved in performing 
> the file. This does not seem to be alsa specific, and also occurs often 
> with UDP streams in the beginning. I have to assume this is another 
> breakage/side effect of the synchro algorithm.

It doesn't occur only at the beginning... here is an example of output
with a 3 min mp3 file (ALSA output):

[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40472)
[00000382] main audio output warning: resampling stopped after 18468182
usec (drift: -39872)
[00000382] main audio output warning: buffer is 40054 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40410)
[00000382] main audio output warning: timing screwed, stopping
resampling
[00000382] main audio output warning: buffer is 69656 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (49233)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40660)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40044)
[00000382] main audio output warning: resampling stopped after 19774188
usec (drift: -31174)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (42062)
[00000382] main audio output warning: buffer is 73415 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40383)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (42277)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41971)
[00000382] main audio output warning: resampling stopped after 18939141
usec (drift: -43474)
[00000382] main audio output warning: buffer is 43656 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40299)
[00000382] main audio output warning: timing screwed, stopping
resampling
[00000382] main audio output warning: buffer is 83542 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41566)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40664)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (46208)
[00000382] main audio output warning: resampling stopped after 19721787
usec (drift: -44456)
[00000382] main audio output warning: buffer is 44638 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (43621)
[00000382] main audio output warning: timing screwed, stopping
resampling
[00000382] main audio output warning: buffer is 86989 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40195)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40478)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40247)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40557)
[00000382] main audio output warning: resampling stopped after 19773998
usec (drift: -80047)
[00000382] main audio output warning: buffer is 80228 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (45276)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (43773)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41384)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41124)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (42154)
[00000382] main audio output warning: resampling stopped after 24564904
usec (drift: -34644)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41984)
[00000382] main audio output warning: buffer is 76806 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (49633)
[00000382] main audio output warning: resampling stopped after 13347806
usec (drift: -49233)
[00000382] main audio output warning: buffer is 49415 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (44895)
[00000382] main audio output warning: timing screwed, stopping
resampling
[00000382] main audio output warning: buffer is 92814 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40723)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (42451)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41422)
[00000382] main audio output warning: resampling stopped after 20137305
usec (drift: -42758)
[00000382] main audio output warning: buffer is 42939 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (41639)
[00000382] main audio output warning: timing screwed, stopping
resampling
[00000382] main audio output warning: buffer is 84289 late, triggering
upsampling
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40399)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (40873)
[00000382] main audio output warning: output date isn't PTS date,
requesting resampling (44039)
[00000382] main audio output warning: resampling stopped after 19618022
usec (drift: -43810)
[00000382] main audio output warning: buffer is 43992 late, triggering
upsampling


-- 
Cyril

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