Video editor with lossless cutting - for example replace or overwrite h.264 tracks no recompression

zcream

ffmpeg allows many lossless operations. Lossless meaning without re-compression. See lossless-cut - https://mifi.github.io/lossless-cut/ and https://forum.videohelp.com/threads/398507-Top10-Commands-for-Lossless-Video-manipulation-using-ffmpeg-%28Guide%29

I need NLE that allows me to replace the first few seconds of a video with another one, keeping the audio intact. ffmpeg cannot do this - from what I know.

Vitaliy_Kiselev

Most simple way can be split the video (can use avidemux or such), make new small first part and join video again.

BradMowrey

Compressor and VLC both have "passthrough" options, I use Final Cut or even Quicktime 7 to cut .H264 files w/out recompression.

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