I'm using mencoder and ffmpeg to make videos with music playing over a single image. The videos play fine but I can't seek at all. I've tried generating them with -idx and even -forceidx and keyint with mencoder but I couldn't get it to work. The only option I saw for this with ffmpeg was force_key_frames but it seems I'd have to set each time explicitly.
I'd specifically like this to work with Totem. When I do try to seek with Totem it restarts the video. I can seek with other videos processed with mencoder/ffmpeg where I started with a video from another source. I'm only having trouble with these videos that I'm creating from images.
The basic encoding commands I'm using are:
mencoder "mf://image.jpg" -mf w=480:h=360:type=jpg -o mencoder_out.avi -ovc lavc -lavcopts vcodec=mpeg4:aspect=4/3:keyint=30 -audiofile music.mp3 -oac copy -fps 1/300.0 -ofps 30 -idx
ffmpeg -i image.jpg -i music.mp3 -acodec copy ffmpeg_out.avi
With mencoder I've also tried using a separate pass to add the key frames:
mencoder -idx mencoder_out.avi -o mencoder_indexed.avi -ovc copy -oac copy
- note: with mencoder I usually add other lavcopts like vbitrate and mbd but none of those have had any effect on this problem as far as I can tell