I'm gonna upload the ffmpeg output and some more info tomorrow.įfmpeg -i input.mkv -c copy -map 0 -map -0:a out.mkv MakeMKV probably didn't rip the English forced subs because they were empty. The subs causing this problem is the German forced. When I ripped these movies with MakeMKV I always told MakeMKV to rip 4 subtitles: If I use the following instead (not copying the third subtitle), memory consumption stays at about 4% and everything works fine:įfmpeg -i input.mkv -scodec copy -vcodec copy -an output.mkv -scodec copy -newsubtitle If I do the following, I can actually watch the memory getting eaten up in 'top' within minutes and ffmpeg getting killed:įfmpeg -i input.mkv -scodec copy -vcodec copy -an output.mkv -scodec copy -newsubtitle -scodec copy -newsubtitle I couldn't quite figure out how the -map option works now, so I used an older build from the official Arch Linux repos (compiled on ) for testing.Īnyway, it seems like this is caused by - and here comes the surprise - the subtitles.Īll the files that have this problem have 3 subtitles. After I did a fresh compile from Git, I saw that there are some ongoing changes regarding the -new* and -map options (thank god, I actually switched to libav because the syntax for avconv is much better).

Ffmpeg copy changes bitrate 47.95