[MEncoder-users] How to Change FPS on a Broken TS Stream?

Nico Sabbi nicola_sabbi at fastwebnet.it
Mon Jun 5 01:32:06 CEST 2006


Bill Adams wrote:

> I am trying to do a MPEG-2 TS to MPEG-2 PS conversion and am having 
> some issues...
>
> This is using slightly patched ffmpeg/mplayer from a SVN pull today 
> (Sunday). (The patches from from the livna FC5 source rpms.)
>
> AFAIK, My local ABC affiliate seems to be broadcasting a broken  ATSC  
> TS stream. The ts stream I have was acquired with a pchdtv3000 and a 
> hacked version of getatsc that filters out unwanted PIDs. This version 
> of getatsc works fine for all stations except ABC so I doubt it is the 
> program. (Indeed, I have seen the problem with an unfiltered ts stream 
> from ABC).
>
> For example, the following command works fine for some PBS content I 
> have:
>
> mencoder -oac copy -ovc lavc -lavcopts 
> vcodec=mpeg2video:vqscale=4:dia=4:keyint=20 -vf 
> pp=fd,scale=1280:720,harddup -of mpeg -frames 4000 -o Test.mpg 
> OPB-SecretsOfTheDead-Titantics_Ghosts.ts
>
> I get a few duplicate frames and a number of lines like:
> ERROR: scr 11.701, dts 7.240, pts 7.274
> But overall it seems to work and the video is smooth.


post the full output and possibly a link a sample, please.
I imagine what is going on (too low muxrate that should be increased by 
10% until you get no more complaints),
but I need to verify it.

    Nico



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