[FFmpeg-user] converting 1080 to 720 mpeg2

[Andy Sheen]

Ian Evans wrote on Tue 28 Feb at 9:25 UK time
> On Tue, Feb 28, 2012 at 4:19 AM, Andy Sheen <sheen.andy at googlemail.com> wrote:
>> Have you seen what Myth makes of the two files just concatenated? They
>> are both MP2 transport streams so it should be possible (although you
>> might get errors at the transition).
>> I recode all my recorded shows as x264, why not try mpeg2 instead of
>> rawvideo? Ideally you need to get them to the same frame rate and size,
>> but as I said, Myth may just handle the two files concatenated.
> 
> I cat'd the two files earlier today as one person suggested on the
> myth list. When I tried to do a lossless transcode to rebuild the seek
> table, it errored out.

In which case try some of the tests suggested above (with my parameters
instead of Johns for the moment) but recode to mpeg2 not rawvideo. You
should be aiming for 720p 29.97 video encoded with the same encoder
before trying to remux the two together.