On 2016-03-10 09:22, Carlos E. R. wrote:
On 2016-03-05 19:39, Carlos E. R. wrote:
Well, taking info from several posts here, I'm trying with ffmpeg in the CLI.
I found that the output is choppy or jerky somewhere after 15 minutes of play, on the four movies I tried. There is a chirp, then it plays a second, stops a second, plays a second... the play time increases about double. It does not depend on the player, it seems, but it does depend a bit on the video codec. I tried something like this: ffmpeg -i "input-video.mpeg" -ss 00:05:44.600 -map 0:0 -map 0:1 -map 0:2 \ -q:v 4 -q:a 1 -async 1 -vcodec libxvid -vf crop=1920:804:0:138 \ -acodec libmp3lame output.avi Then I tried: ffmpeg -i "input-video.mpeg" -ss 00:05:44.6 -map 0:0 -map 0:1 -map 0:2 \ -c:v libx264 -preset ultrafast -crf 22 -vf crop=1920:804:0:138 \ -c:a copy output.mkv It is less jerky, but it is still very much jerky. That's the main remaining problem with ffmpeg: finding why the output is jerky. I also tried: ffmpeg -i "input-video.mpeg" -vsync drop \ -ss 00:29:00.00 -t 00:05:00.00 -map 0:0 -map 0:1 -map 0:2 \ -c:v libx264 -preset ultrafast -crf 22 -vf crop=1920:804:0:138 \ -c:a copy output.mkv Two changes: I go fast to the region that produces the failure, and I added "-vsync drop". The later produces a change, but the output is still horribly jerky. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)