[streaming] Re: Problem transcoding H264 to MPEG-2

[Julian Allen]

Not sure if this is relevant, but these streams all require "Use RTSP over RTP (TCP)" to be set in VLC demuxers preferences.  

Does anyone even have any idea what the output log is trying to tell me?  Something that might point me in the right direction?

Cheers,

=Julian=

Marshall Eubanks <tme at multicasttech.com> wrote: It is possible that this is a problem with the Quicktime encoding /  
hinting. If so,
now would be a good time in the QT upgrade cycle for someone to  
unearth it.

Regards
Marshall

On Feb 22, 2007, at 4:45 PM, Julian Allen wrote:

> Did anyone get a chance to look at the logs I posted?  I was hoping  
> someone with experience of transcoding H264 streams could tell me  
> what I'm doing wrong.
>
> =Julian=
>
> Julian Allen  wrote: Hi Jean-Paul,
>
> Thanks for your reply. I have posted (pasted?) 3 logs:
>
> http://paste.videolan.org/1372 - this is the output from just  
> playing the stream (successfully).
> http://paste.videolan.org/1373 - this the output from transcoding  
> the stream from H264 to MPEG-2.
> http://paste.videolan.org/1374 - this the output from trying to  
> play the resultant mpeg file.
>
> Cheers,
>
> =Julian=
>
>
> Jean-Paul Saman  wrote: Julian Allen wrote:
> > Hi,
> >
> > I'm trying to transcode some H264 streams to MPEG-2 format files.  
> These streams play fine with VLC 0.8.6 but when I try to transcode  
> them, the resultant file has audio but no video
> >
> > The VLC command line I'm using works for most network streams (of  
> various different formats) but not these particular AFTV ones. So  
> I'm thinking there must be something non-standard about the streams  
> that I'm not accounting for.
> >
> > Here's the comand line I'm using:
> >
> > vlc rtsp://video1.multicasttech.com/ 
> AFTVCrimeH264500.sdp :sout=#transcode 
> {vcodec=mp2v,vb=2048,scale=1,acodec=mpga,ab=192,channels=2,audio- 
> sync}:standard{access=file,mux=ps,dst="AFTV Crime.mpg"} --sout- 
> transcode-width 640 --sout-transcode-height=480 --sout-transcode- 
> canvas-width=640 --sout-transcode-canvas-height=480
> >
> > and here's the VLC message that gets logged over and over again  
> during the transcoding process:
> >
> > main warning: trying to send non-dated packet to stream output!
> >
> > I'd be very grateful for any help or suggestions.
> >
> > =Julian=
> >
> > PS - I already raised his on the "vlc" mailing list but got no  
> replies. A friend told me that subscribers to the "streaming"  
> mailing list would be more likely to come up with good suggestions  
> for this problem.
> >
> >
> >
> >
> >
> Could you post the complete VLC logs to paste dot videolan dot org and
> sent an e-mail again with the link to the pasted log?
>
> That would give us developers more information about why things go
> wrong. With the information you have given us so far the only  
> conclusion
> that can be drawn is that the input stream is borked.
>
> Gtz,
> Jean-Paul Saman.
>
>
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>

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