Am Mi., 8. Jan. 2020 um 21:32 Uhr schrieb Green Koopa <greenko...@gmail.com>: > > I have a video from a GoPro Hero8. It was recorded at 29.97 fps. I would > like to speed up this video. I figure it would be nice to simply increase > the frame rate to 60 fps, so a x2.002 speed-up. > > Can this be done without re-encoding the video? I tried: > ffmpeg -r 60 -i in.mp4 -c:v copy -c:a copy out.mp4 > This gave me output that was slightly (1MB, 0.1%) smaller, > but the same length in time.
It should work if you extract the video first: $ ffmpeg -i in.mp4 -c copy -f rawvideo out $ ffmpeg -r 60 -i out -c copy out.mp4 (You may need an mkv file as additional intermediate) I don't understand why you are also trying to copy audio, this will most likely not work... Carl Eugen _______________________________________________ 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".
