2016-09-04 12:52 GMT+02:00 Peter White <peter.wh...@posteo.net>: > 04.09.2016 12:21, Carl Eugen Hoyos:
>>> i am trying to encode with a variable bitrate, 2 pass encoding >> >> How is this supposed to work (in a general sense, unrelated >> to a codec or an implementation)? >> Two-pass encoding indicates constant bitrate afaict. This should have been "average bitrate" which is not the same as variable bitrate. > No, it does not. If each frame got the same bitrate, which > is the definition of constant bitrate (CBR) No, the actual definition of cbr (for mpeg-2 video or h.264) is very difficult and cannot be part of a short email. (But using cbr with two-pass encoding makes not much sense, I believe we agree on that.) Anyway, my point was that you can either specify a quality or a bitrate. If you specify a bitrate, two-pass encoding increases quality. If you don't want an average (but a variable) bitrate, I don't see how two-pass encoding can help. 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".
