[Bug 417098] [NEW] vlc buffer underrun

[oli z]

Public bug reported:

Binary package hint: vlc

when i try to play a mp3 it always lags... so i started playing it with vlc -vvv file.mp3
its with every mp3 i play so i dont think it depends on the mp3... here's the output:

[0x33a1718] main audio output debug: thread started
[0x33a1718] main audio output debug: thread (aout) created at priority 15 (alsa.c:687)
[0x33a1718] main audio output debug: using audio output module "alsa"
[0x33a1718] main audio output debug: TIMER module_need() : 290,213 ms - Total 290,213 ms / 1 intvls (Avg 290,213 ms)
[0x33a1718] main audio output debug: output 'fl32' 44100 Hz Stereo frame=1 samples/8 bytes
[0x33a1718] main audio output debug: mixer 'fl32' 44100 Hz Stereo frame=1 samples/8 bytes
[0x33a1718] main audio output debug: no need for any filter
[0x33a1718] main audio output debug: looking for audio mixer module: 3 candidates
[0x33a1718] main audio output debug: using audio mixer module "float32_mixer"
[0x33a1718] main audio output debug: TIMER module_need() : 0,635 ms - Total 0,635 ms / 1 intvls (Avg 0,635 ms)
[0x33a1718] main audio output debug: input 'mpga' 44100 Hz Stereo frame=1152 samples/1053 bytes
[0x2747c88] main audio filter debug: looking for audio filter module: 1 candidate
[0x2747c88] scaletempo audio filter warning: bad input or output format
[0x2747c88] main audio filter warning: no audio filter module matching "scaletempo" could be loaded
[0x2747c88] main audio filter debug: TIMER module_need() : 28,387 ms - Total 28,387 ms / 1 intvls (Avg 28,387 ms)
[0x2747c88] main audio filter debug: looking for audio filter module: 1 candidate
[0x2747c88] scaletempo audio filter debug: format: 44100 rate, 2 nch, 4 bps, fl32
[0x2747c88] scaletempo audio filter debug: params: 30 stride, 0,200 overlap, 14 search
[0x2747c88] scaletempo audio filter debug: 1,000 scale, 1323,000 stride_in, 1323 stride_out, 1059 standing, 264 overlap, 617 search, 2204 queue, fl32 mode
[0x2747c88] main audio filter debug: using audio filter module "scaletempo"
[0x2747c88] main audio filter debug: TIMER module_need() : 0,463 ms - Total 0,463 ms / 1 intvls (Avg 0,463 ms)
[0x33a1718] main audio output debug: filter(s) 'mpga'->'fl32' 44100 Hz->44100 Hz Stereo->Stereo
[0x2742dc8] main audio output debug: looking for audio filter module: 24 candidates
[0x2742dc8] main audio output debug: using audio filter module "mpgatofixed32"
[0x2742dc8] main audio output debug: TIMER module_need() : 22,754 ms - Total 22,754 ms / 1 intvls (Avg 22,754 ms)
[0x33a1718] main audio output debug: found a filter for the whole conversion
[0x33a1718] main audio output debug: filter(s) 'fl32'->'fl32' 48510 Hz->44100 Hz Stereo->Stereo
[0x33a35a8] main audio output debug: looking for audio filter module: 24 candidates
[0x33a35a8] main audio output debug: using audio filter module "bandlimited_resampler"
[0x33a35a8] main audio output debug: TIMER module_need() : 28,273 ms - Total 28,273 ms / 1 intvls (Avg 28,273 ms)
[0x33a1718] main audio output debug: found a filter for the whole conversion
[0x339bc18] main decoder debug: End of audio preroll
[0x7f8f80001c48] main input debug: Decoder buffering done in 363 ms
[0x33a1718] main audio output warning: PTS is out of range (-8470), dropping buffer
[0x33a1718] main audio output warning: PTS is out of range (-34565), dropping buffer
[0x33a1718] mpgatofixed32 audio output debug: libmad error: bad main_data_begin pointer
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (45930)
[0x33a1718] main audio output warning: buffer is 45928 late, triggering upsampling
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (51141)
[0x33a1718] main audio output warning: timing screwed, stopping resampling
[0x33a1718] main audio output warning: buffer is 97024 late, triggering upsampling
[0x33a1718] main audio output debug: audio output is starving (24043), playing silence
[0x33a1718] alsa audio output debug: recovered from buffer underrun
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (44654)
[0x33a1718] main audio output warning: audio drift is too big (139615), dropping buffer
[0x33a1718] mpgatofixed32 audio output debug: libmad error: bad main_data_begin pointer
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (49051)
[0x33a1718] main audio output warning: audio drift is too big (161976), dropping buffer
[0x33a1718] main audio output warning: audio drift is too big (135854), dropping buffer
[0x33a1718] main audio output debug: audio output is starving (23979), playing silence
[0x33a1718] alsa audio output debug: recovered from buffer underrun
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (48222)
[0x33a1718] main audio output warning: audio drift is too big (151695), dropping buffer
[0x33a1718] main audio output warning: audio drift is too big (125572), dropping buffer
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (43078)
[0x33a1718] main audio output warning: audio drift is too big (141349), dropping buffer
[0x33a1718] mpgatofixed32 audio output debug: libmad error: Huffman data overrun
[0x33a1718] main audio output debug: audio output is starving (26831), playing silence
[0x33a1718] alsa audio output debug: recovered from buffer underrun
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (41790)
[0x33a1718] main audio output warning: audio drift is too big (147289), dropping buffer
[0x33a1718] main audio output warning: audio drift is too big (121166), dropping buffer
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (48615)
[0x33a1718] main audio output warning: audio drift is too big (142571), dropping buffer
[0x33a1718] main audio output debug: audio output is starving (27536), playing silence
[0x33a1718] alsa audio output debug: recovered from buffer underrun
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (47286)
[0x33a1718] main audio output warning: audio drift is too big (147860), dropping buffer
[0x33a1718] main audio output warning: audio drift is too big (121738), dropping buffer
[0x33a1718] mpgatofixed32 audio output debug: libmad error: bad main_data_begin pointer
[0x33a1718] main audio output warning: output date isn't PTS date, requesting resampling (44823)
[0x33a1718] main audio output warning: audio drift is too big (137741), dropping buffer

Description:	Ubuntu karmic (development branch)
Release:	9.10

vlc:
  Installiert: 1.0.1-1ubuntu1
  Kandidat: 1.0.1-1ubuntu1
  Versions-Tabelle:
 *** 1.0.1-1ubuntu1 0
        500 http://de.archive.ubuntu.com karmic/universe Packages
        100 /var/lib/dpkg/status

i expected that the music plays without lags

it played with lags (sometimes it works when i just play it and dont
play forward/backward... but thats seldom)

** Affects: vlc (Ubuntu)
     Importance: Undecided
         Status: New

-- 
vlc buffer underrun
https://bugs.launchpad.net/bugs/417098
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