![]() ![]() If the recording has a dummy audio description stream the above probably won't work. Then, if subtitles are stream 5, for example, just: ffmpeg -i in. The following commands are useful as they make ffmpeg copy and remux all video and audio streams plus the subtitles whilst ignoring any unknown data streams: Code: ffmpeg -i input.ts -map 0 -c copy -ignoreunknown output.m2ts. ![]() First, you need a concat input file like: file 'in.mkv' With feedback from we arrived at using the concat demuxer to process the subtitles and combine that with reading the audio and video streams into a complex filtergraph. ![]() Is there a way to process subtitle streams in a similar way so that the subtitles will match the other, trimmed streams? I'm looking for something that'll work from the command line to be part of a non-interactive batch process. Important note I am sure all the VOB files I concatenated actually contained parts of the movie (all of those were needed otherwise. Trim=start=10:end=20,setpts=PTS-STARTPTS \Ītrim=start=10:end=20,asetpts=PTS-STARTPTS \ As a simple example, consider this, which takes an input file with a video stream and an audio stream and produces a 20-second output that includes timestamps 00:10-00:20 and 00:30-00:40 of the input: ffmpeg -i in.mkv \ I'm using ffmpeg filtergraphs to extract and concatenate chunks of videos. For video, it will select stream 0 from B.mp4, which has the highest resolution among all the input video streams. vob for all streams until it has read 50 MB of data or 100 seconds of video, whichever comes first.
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