Michael Niedermayer <[email protected]> added the comment: On Thu, Dec 18, 2008 at 02:21:43AM +0000, Baptiste Coudurier wrote: > Duration computation is based on bitrate, it seems something changed in > bitrate computation though, since before you had 6000 now 9800, please
The difference from 6000 to 9800 is because some seq headers say 6000 and some say 9800. This is also a violation of the mpeg2 spec which clearly says that all sequence headers must match except the quant matrixes. The actual bitrate of the uploaded piece is 3644 so this is not a regression. Whats left is a possible feature request for implementing bitrate and thus duration estimation based on optional GOP headers. [...] ---------- title: wrong runtime (duration) for mpegvideo -> Estimate bitrate and duration of mpegvideo based on GOP headers type: bug -> feature_request ____________________________________________________ FFmpeg issue tracker <[email protected]> <https://roundup.ffmpeg.org/roundup/ffmpeg/issue755> ____________________________________________________
