[MEncoder-users] Is it possible to rewrite the SCR in the pack headers?

[Nico Sabbi]

Duncan Webb wrote:

>Hi all,
>
>Is it possible to rewrite just the SCR in the pack headers for an mpeg-2
>file?
>
>After recording a TV programme using an IVTV card and then splitting the
>file with gopchop the second section starts at the time of the split
>instead of 0. The reason I've found is that the System Clock Reference
>has not been reset to 0.
>
>Is it possible to use mencoder just to rewrite the pack headers and
>leave the program streams intact. Especially the private data stream,
>which contains teletext data, that I will want to process to extract the
>subtitles. The subtitling extraction is already written, but will need
>to change my program to optionally use the SCR. It would be nice to have
>the times starting at zero instead of say 56mins.
>
>I've been googling for quite a while to see it someone has the answer
>but no joy.
>
>TIA,
>Duncan
>
>  
>
it's not possible for the simple reason that the value of the SCR
has important consequences on the whole stream: buffers occupation,
playback time, etc.
I seriously doubt you will ever find what you are looking for