Let's say that I concatenated two videos using transitions (xfade). Does the final video "know/remember" that part of it was generated through transitions?
Here is what is going on: I have two videos with 9 seconds each. I concatenate them using transition with duration 4 and offset 7. So the final video has the transition part between 7 and 11. The transition is created like this: Ffmpeg -i v1.mp4 -i v2.mp4 -filter_complex "xfade=transition=hlslice:duration=4:offset=7" -pix_fmt yuv420p output.mp4 So far so good. The transition happens between 7 and 11 of the new video. Now I want to create a new video by extracting the part that has the transition, with an additional second on each side, so I want to cut from 6 to 12 and I use the following: Ffmpeg -ss 6 -i input.mp4 -to 6 -c copy output.mp4 I expect a final video with 6 seconds, showing the transition starting at 1 and ending at 5. Instead I get a video with 9 seconds and the transition seems to start at 5. If I use exactly the same command (Ffmpeg -ss 6 -i input.mp4 -to 6 -c copy output.mp4) on a video without transitions I get what is expected, a video with 6 seconds. Why is that? Why is the video with transition different from a regular video? Thanks _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
