Hi, > The description of preset file that has been used is as follows:- > > vcodec=libx264 > vprofile=main > level=30 > b:v=800000 > bufsize=800000 > > But the output .mp4 file is not getting compressed.
My first thought is that the b:v=800000 in the preset file is leading to a constant bit-rate encode. Is the file in question about an hour and 2 minutes long? If it’s close, then I would say that is what’s happening. If there is a file size constraint, you should encode using multiple passes, or if it is just the case that you would like a somewhat smaller file to work with, you can use constant quality (vs. constant bitrate) encoding settings, using -crf to control the output filesize by trial and error, instead of explicitly specifying the video bitrate Regards, Ted Park _______________________________________________ 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".