t 4m20s is the wrong syntax: The duration may be a number in seconds, or in hh:mm:ss. c:a copy and -c:v copy come after the input option and before the output. There is no "copy decoder" – that doesn't make sense. Anything before -i tells FFmpeg to decode the input video. acodec copy -vcodec copy can not come before the -i option. This will reduce the possibility of running into bugs.
Movie splitter mkv download#
Please compile it from source or download a precompiled binary from the homepage. You're using a terribly outdated version of FFmpeg. Here's what was wrong about your commands:
Of course, you can specify the video quality with -crf 23 and the audio quality with -b:a 192k, varying those parameters. If you have problems with synchronization, try re-encoding audio and video: ffmpeg -i output3.mkv -t 00:04:20 -c:v libx264 -c:a libfaac output-cut.mkv Read as: Input MKV video, encode 4:20 minutes, copy audio and video bitstream and save them to output file. In theory, this is enough: ffmpeg -i output3.mkv -t 00:04:20 -c:v copy -c:a copy output-cut.mkv I also tried mencoder but it damages an audio track What is the right way to cut an mkv file?
Video:32781kB audio:2292kB global headers:0kB muxing overhead 0.475784%ģ) Works hard and long time and cuts exactly to 4:20 but makes a huge file, changing file size from 35Mb to 113Mb!!! ffmpeg -i output3.mkv -ss 00:00:00 -t 00:04:20 -sameq output3-cut.mkv It cuts to 3:25 regardless of seconds value if I specify 3m50s or 30m some values ~ > ffmpeg -t 4m20s -acodec copy -vcodec copy -i output3.mkv oFFmpeg version SVN-r0.5.9-4:0.5.9-0ubuntu0.10.04.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.įrame= 4001 fps=3570 q=-1.0 Lsize= 35240kB time=266.71 bitrate=1082.4kbits/s Video:33503kB audio:2344kB global headers:0kB muxing overhead 0.477241%Ģ) Cuts to 4:25 if I specify 4m15s 4m05s 4m and other seconds after 4m, with the same resulting file size.
Output #0, matroska, to 'output3-cut.mkv': Stream #0.1: Audio: mp3, 22050 Hz, mono, s16įile 'output3-cut.mkv' already exists. I got an mkv of 4:33 duration and I'd like to cut out the end from 4:20ġ) Does not cut at all ~ > ffmpeg -t 00:04:20 -acodec copy -vcodec copy -i output3.mkv output3-cut.mkvįFmpeg version SVN-r0.5.9-4:0.5.9-0ubuntu0.10.04.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.Ĭonfiguration: -extra-version=4:0.5.9-0ubuntu0.10.04.1 -prefix=/usr -enable-avfilter -enable-avfilter-lavf -enable-vdpau -enable-bzlib -enable-libgsm -enable-libschroedinger -enable-libspeex -enable-libtheora -enable-libvorbis -enable-pthreads -enable-zlib -disable-stripping -disable-vhook -enable-runtime-cpudetect -enable-gpl -enable-postproc -enable-swscale -enable-x11grab -enable-libdc1394 -enable-shared -disable-static
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