[FFmpeg-user] Rough Transitions when joining MPEG clips

On Tue, 30 Mar 2010 00:25:03 -0700 (PDT) sun_radha at yahoo.com <sun_radha at yahoo.com> wrote:

Hi All,

When I play back mpeg clips joined with cat command there are freeze frames when playing back at clip transitions. First thing I do is cat mpeg clips to a file?

cat c1.mpg c2.mpg c3.mpg > movie.mpg and use ffmepg to remux the new mpeg file

ffmpeg -i movie.mpg -acodec copy -vcodec copy -y out.mpg

Is there any thing we can do to remove the rough transitions at clip boundaries and allow for a smooth play back.

Thanks Radha

You can try another open source tool, mpgjoin (part of mpegtx): mpgjoin -P c1.mpg c2.mpg c3.mpg -o out.mpg Try with or without the -P.