![]() ![]() If you want to clone the frames instead, or want a different color than black then refer to the tpad filter documentation. If you want it at the beginning instead use start_duration instead of stop_duration. Relatively new filters: use FFmpeg 4.2 or newer, or even better use a build from the current git master branch.Īppend 15 seconds of black video to the end of the main video: ffmpeg -i main.mkv -filter_complex "tpad=stop_duration=15" output.mkv Cons: Filtering requires encoding, so no stream copying of the main video as in the concat demuxer. I want to copy all the streams (including cover art) except the first video stream from one MP4 file to another, here is what I do : time ffmpeg -hidebanner -i toto1.If you prefer the black to be at the beginning instead then switch the order for the concat filter inputs, such as concat…. Use the color source filter to make the 15 second, 24 fps, 1280x720 black video and append it to the end of the main video with the concat filter: ffmpeg -i main.mkv -filter_complex "color=c=black:s=1280x720:r=24:d=15 concat=n=2:v=1:a=0" -map "" output.mkv Con: Filtering requires encoding, so no stream copying of the main video as in the concat demuxer.file 'main.mkv'Ĭoncatenate: ffmpeg -f concat -i input.txt -c copy output.mkv The order in this text file determines the order that they will appear when concatenating. This example makes a 15 second black video, frame rate of 24, size is 1280x720: ffmpeg -f lavfi -i color=c=black:s=1280x720:r=24:d=15 black.mkv Make the black video using same attributes and same number and type of streams as the main input. Harder to get right, because the blank video needs to have the same attributes as the main video. Pros: Avoids re-encoding the main video and therefore preserves quality since it is stream copied.
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