[vlc] Jerky video and distorted audio for streamed file

[Chhaya, Harshal]

Hi,

I am using VLC to display a video stream that is sent over an
experimental network (being able to successfully stream a video
is one of the tests that shows that the network is reliable).

I am using a custom app on the sending side that just reads fixed
sized chunks of a video file and sends them over the network. This
application has no idea of what rate the video file was encoded at
but it does have a command line parameter that can change the delay
between each packet sent over the network. I can't use vlc's streaming
capabilities because there is no Windows network driver for the 
network yet.

We can view the video fine at the receiver but it is somewhat jerky
and we can hear distortions in the audio. We think that the video
data is arriving either too fast or too slow (we aren't sure which)
vlc's message log is below.

Any suggestions on what I can do to improve the playback? This
particular file is an MPEG2 file at 6Mbps, btw.

Thanks,
Harshal	

main warning: output date isn't PTS date, requesting resampling (42961)
main warning: backward_pts != current_pts (-44033)
main warning: output date isn't PTS date, requesting resampling (42503)
main warning: output date isn't PTS date, requesting resampling (43060)
main warning: backward_pts != current_pts (-98154)
main warning: backward_pts != current_pts (-19499)
main warning: output date isn't PTS date, requesting resampling (42491)
main warning: backward_pts != current_pts (-54921)
main warning: resampling stopped after 17982577 usec
main warning: output date isn't PTS date, requesting resampling (42449)
main warning: buffer is 132216 in advance, triggering downsampling
main warning: backward_pts != current_pts (-27988)
main warning: output date isn't PTS date, requesting resampling (42908)
main warning: backward_pts != current_pts (-42521)
main warning: output date isn't PTS date, requesting resampling (42521)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42735)
main warning: backward_pts != current_pts (-56988)
main warning: backward_pts != current_pts (-44143)
main warning: output date isn't PTS date, requesting resampling (42783)
main warning: output date isn't PTS date, requesting resampling (42670)
main warning: backward_pts != current_pts (-59632)
main warning: backward_pts != current_pts (-43966)
main warning: output date isn't PTS date, requesting resampling (42497)
main warning: backward_pts != current_pts (-48176)
main warning: backward_pts != current_pts (-22522)
main warning: output date isn't PTS date, requesting resampling (42465)
main warning: backward_pts != current_pts (-43332)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-36099)
main warning: output date isn't PTS date, requesting resampling (43071)
main warning: output date isn't PTS date, requesting resampling (42509)
main warning: backward_pts != current_pts (-76999)
main warning: backward_pts != current_pts (-78798)
main warning: output date isn't PTS date, requesting resampling (42520)
main warning: backward_pts != current_pts (-30577)
main warning: backward_pts != current_pts (-44010)
main warning: output date isn't PTS date, requesting resampling (43039)
main warning: backward_pts != current_pts (-74166)
main warning: backward_pts != current_pts (-21076)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-75466)
main warning: backward_pts != current_pts (-27921)
main warning: backward_pts != current_pts (15723)
main warning: backward_pts != current_pts (-25999)
main warning: backward_pts != current_pts (-91232)
main warning: output date isn't PTS date, requesting resampling (42400)
main warning: backward_pts != current_pts (-72543)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-107299)
main warning: backward_pts != current_pts (-29599)
main warning: output date isn't PTS date, requesting resampling (42597)
main warning: backward_pts != current_pts (-38799)
main warning: backward_pts != current_pts (-40777)
main warning: backward_pts != current_pts (-81465)
main warning: output date isn't PTS date, requesting resampling (42778)
main warning: backward_pts != current_pts (-20521)
main warning: backward_pts != current_pts (-23177)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-39454)
main warning: output date isn't PTS date, requesting resampling (42740)
main warning: backward_pts != current_pts (-26055)
main warning: output date isn't PTS date, requesting resampling (42933)
main warning: backward_pts != current_pts (-104588)
main warning: output date isn't PTS date, requesting resampling (42414)
main warning: backward_pts != current_pts (-52298)
main warning: output date isn't PTS date, requesting resampling (42419)
main warning: backward_pts != current_pts (-53266)
main warning: output date isn't PTS date, requesting resampling (42939)
main warning: backward_pts != current_pts (-54377)
main warning: output date isn't PTS date, requesting resampling (42825)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42480)
main warning: backward_pts != current_pts (-83554)
main warning: output date isn't PTS date, requesting resampling (42868)
main warning: backward_pts != current_pts (-59722)
main warning: output date isn't PTS date, requesting resampling (42658)
main warning: resampling stopped after 21427984 usec
main warning: buffer is 133074 in advance, triggering downsampling
main warning: backward_pts != current_pts (-44521)
main warning: output date isn't PTS date, requesting resampling (42746)
main warning: backward_pts != current_pts (-31376)
main warning: output date isn't PTS date, requesting resampling (42403)
main warning: output date isn't PTS date, requesting resampling (42698)
main warning: backward_pts != current_pts (-58699)
main warning: backward_pts != current_pts (-51599)
main warning: output date isn't PTS date, requesting resampling (42769)
main warning: backward_pts != current_pts (-43277)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42598)
main warning: backward_pts != current_pts (-44676)
main warning: output date isn't PTS date, requesting resampling (42346)
main warning: backward_pts != current_pts (-76044)
main warning: output date isn't PTS date, requesting resampling (43047)
main warning: backward_pts != current_pts (-48054)
main warning: backward_pts != current_pts (-17266)
main warning: backward_pts != current_pts (-43732)
main warning: output date isn't PTS date, requesting resampling (85137)
main warning: backward_pts != current_pts (-99021)
main warning: backward_pts != current_pts (-9943)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-33610)
main warning: output date isn't PTS date, requesting resampling (42800)
main warning: backward_pts != current_pts (-73733)
main warning: backward_pts != current_pts (-41221)
main warning: output date isn't PTS date, requesting resampling (42613)
main warning: backward_pts != current_pts (-49532)
main warning: backward_pts != current_pts (-28910)
main warning: backward_pts != current_pts (-30488)
main warning: backward_pts != current_pts (-99065)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-15233)
main warning: backward_pts != current_pts (-53298)
main warning: timing screwed, stopping resampling
main warning: output date isn't PTS date, requesting resampling (42460)
main warning: buffer is 175307 in advance, triggering downsampling
main warning: backward_pts != current_pts (-10933)
main warning: output date isn't PTS date, requesting resampling (42651)
main warning: output date isn't PTS date, requesting resampling (43081)
main warning: backward_pts != current_pts (-31854)
main warning: output date isn't PTS date, requesting resampling (42581)
main warning: backward_pts != current_pts (-63910)
main warning: output date isn't PTS date, requesting resampling (42554)
main warning: backward_pts != current_pts (-40121)
main warning: output date isn't PTS date, requesting resampling (42538)
main warning: backward_pts != current_pts (-45877)
main warning: output date isn't PTS date, requesting resampling (42999)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-57754)
main warning: output date isn't PTS date, requesting resampling (84899)
main warning: backward_pts != current_pts (-97721)
main warning: backward_pts != current_pts (-20110)
main warning: output date isn't PTS date, requesting resampling (42702)
main warning: output date isn't PTS date, requesting resampling (42703)
main warning: backward_pts != current_pts (-98555)
main warning: output date isn't PTS date, requesting resampling (42921)
main warning: backward_pts != current_pts (-63377)
main warning: backward_pts != current_pts (-37299)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-10266)
main warning: backward_pts != current_pts (-32077)
main warning: output date isn't PTS date, requesting resampling (42292)
main warning: output date isn't PTS date, requesting resampling (43313)
main warning: backward_pts != current_pts (-113454)
main warning: backward_pts != current_pts (-46966)
main warning: backward_pts != current_pts (-30676)
main warning: backward_pts != current_pts (-42999)
main warning: backward_pts != current_pts (-40688)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42519)
main warning: backward_pts != current_pts (-86854)
main warning: backward_pts != current_pts (-31955)
main warning: backward_pts != current_pts (-45976)
main warning: computed PTS is out of range (9202), clearing out
main warning: timing screwed, stopping resampling
main warning: output PTS is out of range (12672), clearing out
main warning: input PTS is out of range (607604), trashing
main warning: computed PTS is out of range (583559), clearing out
main debug: audio output is starving (162862), playing silence
main warning: output date isn't PTS date, requesting resampling (-40381)
main warning: buffer is 53170 in advance, triggering downsampling
main warning: backward_pts != current_pts (-75177)
main warning: backward_pts != current_pts (10101)
main warning: timing screwed, stopping resampling
main warning: buffer is 81093 in advance, triggering downsampling
main warning: backward_pts != current_pts (-60066)
main warning: timing screwed, stopping resampling
main warning: buffer is 123904 in advance, triggering downsampling
main warning: backward_pts != current_pts (-53721)
main warning: timing screwed, stopping resampling
main warning: buffer is 186139 in advance, triggering downsampling
main warning: output date isn't PTS date, requesting resampling (47748)
main debug: decoded 105/105 pictures
main warning: backward_pts != current_pts (-42865)
main warning: output date isn't PTS date, requesting resampling (42432)
main warning: output date isn't PTS date, requesting resampling (43057)
main warning: backward_pts != current_pts (-63721)
main warning: output date isn't PTS date, requesting resampling (42695)
main warning: backward_pts != current_pts (-27399)
main warning: backward_pts != current_pts (-28977)
main warning: output date isn't PTS date, requesting resampling (42583)
main warning: output date isn't PTS date, requesting resampling (42584)
main warning: backward_pts != current_pts (-87699)
main warning: backward_pts != current_pts (-16843)
main warning: backward_pts != current_pts (-46588)
main warning: output date isn't PTS date, requesting resampling (42724)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42783)
main warning: backward_pts != current_pts (-53410)
main warning: backward_pts != current_pts (-47643)
main warning: output date isn't PTS date, requesting resampling (42630)
main warning: output date isn't PTS date, requesting resampling (42578)
main warning: backward_pts != current_pts (-61021)
main warning: backward_pts != current_pts (-41233)
main warning: backward_pts != current_pts (-51576)
main warning: output date isn't PTS date, requesting resampling (42383)
main warning: backward_pts != current_pts (-43866)
main warning: output date isn't PTS date, requesting resampling (43218)
main warning: backward_pts != current_pts (-82043)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42146)
main warning: backward_pts != current_pts (-30099)
main warning: output date isn't PTS date, requesting resampling (42910)
main warning: backward_pts != current_pts (-52643)
main warning: output date isn't PTS date, requesting resampling (42489)
main warning: backward_pts != current_pts (-38999)
main warning: output date isn't PTS date, requesting resampling (42928)
main warning: output date isn't PTS date, requesting resampling (42559)
main warning: backward_pts != current_pts (-74299)
main warning: resampling stopped after 10397469 usec
main warning: buffer is 137391 in advance, triggering downsampling
main warning: output date isn't PTS date, requesting resampling (42718)
main warning: backward_pts != current_pts (-46976)
main warning: backward_pts != current_pts (12156)
main debug: decoded 105/105 pictures
main warning: output date isn't PTS date, requesting resampling (42658)
main warning: backward_pts != current_pts (-33421)
main warning: output date isn't PTS date, requesting resampling (43067)
main warning: backward_pts != current_pts (-41965)
main warning: backward_pts != current_pts (-33666)
main warning: backward_pts != current_pts (-30299)
main warning: output date isn't PTS date, requesting resampling (42198)
main warning: output date isn't PTS date, requesting resampling (42991)
main warning: backward_pts != current_pts (-86265)
main warning: backward_pts != current_pts (-63399)
main warning: output date isn't PTS date, requesting resampling (43171)
main warning: backward_pts != current_pts (-41155)
main debug: decoded 105/105 pictures

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