[Live-devel] fix for stuttering video and audio when streaming an mpeg-2 transport stream

[Morgan Tørvolt]

Hi

This is because your stream is variable bitrate. This has been
discussed and a conclusion has been reached. You can read more in the
mailing list archive.
Here is one link:
http://lists.live555.com/pipermail/live-devel/2007-February/006110.html
Look for threads with "Urgent help needed!" as subject.

-Morgan-

On 15/02/07, Erwin Beckers <e.beckers at gmail.com> wrote:
> Hi,
>
> 80% of all my mpeg-2 transport files can be streamed very nice with the
> live555 sdk
> However i noticed that the other 20% produce stuttering audio and video in
> VLC.
> The VLC messages window shows a lot of 'PTS out of range' errors/warnings
>
> I debugged the library and found out that if i change the following line in
> MPEG2TransportStreamFramer.cpp
>
> change this line:
> #define TIME_ADJUSTMENT_FACTOR 0.8
>
> to this line:
> #define TIME_ADJUSTMENT_FACTOR 0.5
>
> Then all my mpeg-2 transport files stream nicely.
> Can anybody explain what exactly this factor does and if my 'fix' is good?
>
> Regards
>
> Erwin Beckers
>
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