[FFmpeg-devel] FFMPEG windows issues (H.264 RTSP stream decoding)

[Michael Niedermayer]

On Thu, Apr 28, 2011 at 11:03:31AM +0530, Saurabh Gandhi wrote:
> *I am resending this mail since earlier I wasn't subscribed to the mailing
> lists and hence the mail got rejected.
> 
> --
> Regards,
> Saurabh Gandhi
> 
> 
> 
> *
> *On Thu, Apr 28, 2011 at 10:42 AM, Saurabh Gandhi <saurabhg84 at gmail.com>wrote:
> *
> >
> > *Hello all,*
> > *
> > *
> > *I am a windows user (unfortunately) and am trying to use FFMPEG for
> > decoding H.264 based RTSP stream. I have downloaded the latest windows build
> > available on the FFMPEG website (http://hawkeye.arrozcru.org/) and am
> > trying to use ffplay.exe.*
> > *
> > *
> > *The problem is that the output is very much pixelated / distorted  when
> > there is some motion in the frame. The same stream when viewed using VLC
> > works perfectly fine. Another catch is that when I tried viewing the same
> > stream on ubuntu using FFMPEG itselg it works perfectly fine. What could be
> > the issue?*
> > *
> > *
> > *I tried running ffplay.exe on multiple hardware and software platforms
> > which include:*
> >
> >    1. *i3 (4GB RAM) with Windows 7*
> >    2. *core 2 duo (1GB RAM) with windows xp*
> >    3. *intel xeon (2GB RAM) with windows server 2003*
> >
> > *However the problem still persists. When on ubuntu, the problem does not
> > appear at all on all machines. I tried recompiling FFMPEG by self assuming
> > that it must be some issues related to the windows build supplied on the
> > FFMPEG site. However, even this fails to resolve the problem.*
> > *
> > *
> > *Are there any other windows users (read unfortunate) like me who have
> > faced / found a workaround for this issue.*
> > *Awaiting your reply. Thank you.*
> > *
> > *
> > *P.S.: I was wondering how no one has complained of this issue? Has no one
> > out here tried using the latest ffplay.exe from the windows build of ffmpeg
> > for decoding H.264 based RTSP stream?*
> > *
> > *
> > *Another apprehension that I had is how come vlc player is able to get
> > over the issue on windows when vlc itself uses ffmpeg (upto the best of my
> > knowledge).*

sounds like too small UDP receive buffers on windows
Id guess they can be adjusted somewhere (registry?)



[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

While the State exists there can be no freedom; when there is freedom there
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