![]() ![]() Using the drawtext filter: ffmpeg -i input0 -i input1 -i input2 -i input3 -filter_complex This syntax is easier to understand, but less efficient than using xstack as shown above. Using hstack and vstack ffmpeg -i input0 -i input1 -i input2 -i input3 -filter_complex "hstack=inputs=2 hstack=inputs=2 vstack=inputs=2" -map "" output ![]() Using xstack ffmpeg -i input0 -i input1 -i input2 -i input3 -filter_complex "xstack=inputs=4:layout=0_0|w0_0|0_h0|w0_h0" -map "" output If you want vertical use vstack instead of hstack. You can add silent audio with the anullsrc filter to prevent this: ffmpeg -i input0 -i input1 -filter_complex "vstack=inputs=2 anullsrc amerge=inputs=2" -map "" -map "" -ac 2 output.mp4įfmpeg -i input0 -i input1 -i input2 -filter_complex "hstack=inputs=3" -map "" output If you mix inputs that have audio and inputs that do not have audio then amerge will fail because each input needs audio. This example will use the audio from input1: ffmpeg -i input0 -i input1 -filter_complex "vstack=inputs=2" -map "" -map 1:a outputĪdding silent audio / If one input does not have audio This assumes each input contains a stereo audio stream.Use amerge (or amix) and pan filters: ffmpeg -i input0 -i input1 -filter_complex "vstack=inputs=2 amerge=inputs=2,pan=stereo|c0 ![]()
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