On Mon, Apr 16, 2012 at 7:05 PM, Simon Daniels <[email protected]> wrote: > Hi guys, > > I have a set of .MTS files that I'm trying to splice. If I start at 0:00:00, > the output video works fine. But if I start splicing any time after 0:00:00, > the output video is empty. I've used the exact same command line with other > .MTS files and had no problem. It seems like something specific to this > Panasonic Lumix camera. MP4 and MOV files work fine too. > > This repros in FFmpeg HEAD-8dfb13e, 0.10.2, and 0.8.3. > > Any ideas? Thanks! > > Users-MacBook-Pro:ffmpeg-0.10.2 user$ ./ffmpeg -ss 00:00:01 -t 00:00:25 -i > 00004.MTS -threads 3 -acodec copy -vcodec copy "output.MTS"
Your input video stream has only one keyframe, which is the first frame. For h264, -vcodec copy can only start writing video from a keyframe. That's why it produces 0 frames in the end. BR, Alex Cohn _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
