On Mon, Apr 1, 2024 at 3:40 AM Aditya Dandavate <[email protected]> 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 [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
