2017-02-20 2:33 GMT+01:00 John A Hawkinson <jh...@mit.edu>: > pb3:test jhawk$ ffmpeg -loop 1 -i f1.png -t 3.933 -pix_fmt yuv420p -r 29.97 > h5.mp4
If you want ntsc framerate, you have to specify -r 30000/1001 > So, now I want to concatenate the held frame (3.9 seconds) with the > video (1.1 seconds). Their formats are not EXACTLY the same, as reported > by ffprobe, but they are close: The "video" was encoded by a hardware encoder, the "held frame" by x264, you cannot concatenate them. (ffprobe output is completely irrelevant here, it does not show technical details.) Carl Eugen _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".