чт, 29 мая 2025 г., 23:42 Terje J. Hanssen via Cin <cin@lists.cinelerra-gg.org>:
Is it possible with CinGG's Record utility (via FFMPEG) to record a stream to file segments of same duration or file size and use auto-naming?

Typical example:
Record a video/audio input stream (i.e from playing a camcorder tape cassette) and encode to output file segments of 10 minutes or 10 GB each and auto-name file numbers.

Similar example code using an input file instead at
https://unix.stackexchange.com/questions/1670/how-can-i-use-ffmpeg-to-split-mpeg-video-into-10-minute-chunks

Just use what is built into ffmpeg to do exactly this.

ffmpeg -i invid.mp4 -threads 3 \
       -vcodec copy -f segment -segment_time 10:00 \
       -reset_timestamps 1 \
       cam_out_h264_%02d.mp4

This will split it into roughly 10-minute chunks, split at the relevant keyframes, and will output to the files cam_out_h264_01.mp4, cam_out_h264_02.mp4, etc.

Very interesting question! Never tried this, did not even know it existed!

As long as this -f just ordinary avformat muxer you probably can copy your favourite ffmpeg video/audio profiles with new .seg name and put "segmented" at very first line there , where "mov" or "matroska" or other format name was, and add rest of options. And add pattern (%02d) into name just as with ffmpeg-based image lists.

I'll try this with termux's version, but I do not have audio here so it will be incomplete.





Terje J. H




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