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Old 18th June 2024, 14:25   #1  |  Link
TruthOverFacts
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Clip from H264 file without re-encoding

I have a film that's an H264 mp4 file, I'd like to take a clip from it without re-encoding or any type of conversion. Is this possible? If so, any suggestions on how to accomplish this?

Thanks,
TOF
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Old 19th June 2024, 06:31   #2  |  Link
hellgauss
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Virtualdub2 in "Direct stream copy" mode. For video, the first frame of the new file must be a key frame [K]. You can see the tipe of frame in VirtualDub2 at the bottom of the window.

Choose "Direct Stream Copy" from the video and audio , trim video using the black arrows and save using "Export-->Stream Copy"
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Old 19th June 2024, 16:11   #3  |  Link
kurkosdr
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If you want to keep the H.264 encoding (aka if you want to not have the video converted to uncompressed), you can only take whole group-of-pictures. In other words, you can only "cut" on I-frames/keyframes. Avidemux can do that.
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