> I have been absent from the list for a few years, so I would appreciate it > if someone could catch me up a bit. I am needing to extract and embed scc > files with 608 captions. I am pleased to see that transcoding without > frame rate changes now preserves 608 intact, and there appear to be > extraction and embed functions but they do seem to have bugs for my files > at 1080p2997. Are there any developers willing to take on a paid project > to fix whatever is the issue? Here are the commands I am working with. > > Embed: > "C:\FFmpeg\ffmpeg7.1_2024-12-14\ffmpeg.exe" -i > "C:\Users\Captions\AIM-2301_premiereDF.mp4" -i > "C:\Captions\AIM-2301_premiereDF.mp4.scc" -map 0:v -map 0:a -map 1 -c:v > copy -c:a copy -c:s mov_text -metadata:s:s:0 language=eng > "C:\Captions\AIM-2301_premiereDFcopy.mp4" > > Extract: > "C:\FFmpeg\ffmpeg7.1_2024-12-14\ffmpeg.exe" -f lavfi -i > "movie=\'C:\\Captions\\AIM-2301_premiereDF_ffmpegEmbedscc.mp4\'"[out+subcc] > -map 0:1 -c:s copy "C:\Captions\AIM-2301_premiereDF_ffmpegEmbedscc.scc” >
Hi, I’ve reviewed the issue with embedding and extracting 608 SCC captions at 1080p2997 resolution and identified a few areas that might help resolve the character duplication and data spill. Here's a summary of my findings: The current command uses -c:s mov_text, but SCC files may work better with -c:s scc to preserve the format correctly. The current command uses a filtergraph that might not map correctly for SCC extraction. Instead, try simplifying the extraction command: -map 0:s:0 -c:s copy Frame Rate Issues: Ensure the video frame rate and the SCC file frame rate match. You might want to force a specific frame rate (e.g., -r 29.97). Let me know if you have further questions. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
