Okay, fine. But according to H.264 guide :
Warning: When using option -an, you may eventually get a segfault or a broken file. If so, remove option -an and replace by -vsync cfr to the first pass. When I put `vsync cfr` then it says that `-vsync` is deprecated, use `-fps_mode` What is all this happening ? On Mon, 1 Apr, 2024, 8:01 pm Srikanth Kotagiri, <srikan...@gmail.com> wrote: > On Mon, Apr 1, 2024 at 3:40 AM Aditya Dandavate > <adityadandavat...@gmail.com> wrote: > > > > and then > > > > ffmpeg -y -i Capture.mp4 -pix_fmt yuv420p -c:v libx264 -pass 1 -an > > -b:v 2600k -f mp4 NUL > > > > ffmpeg -y -i Capture.mp4 -pix_fmt yuv420p -c:v libx264 -pass 2 -an > > -b:v 2600k myVideo.mp4 > > > > > > Source : > > > > > https://video.stackexchange.com/questions/21953/ffmpeg-error-2nd-pass-has-more-frames-than-1st-pass > > > > > > Can I use `-c:a` copy for audio codec instead of `-an` for both passes ? > > _______________________________________________ > > ffmpeg-user mailing list > > When you run the first pass command, you are creating a "stats file". > Notice the -f mp4 NUL, there is no actual media output being created. > Adding -c:a copy or any actual codec is a waste of IO. You can include > -c:a copy in the second pass where you are actually creating an output > file. > _______________________________________________ > 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". > _______________________________________________ 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".
