Andrew Wason <[EMAIL PROTECTED]> added the comment: The H.263 spec says the sample aspect ratio is assumed 12:11 but can have any SAR if "the custom pixel aspect ratio use is first negotiated by external means". http://www.itu.int/rec/T-REC-H.263-200501-I/en
So I would argue that muxing H.263 in a 3GP or QuickTime container instead of in an RTP stream is negotiating a custom SAR of 1:1 since those containers assume square pixels unless specified otherwise through a container specific mechanism (e.g. via a QuickTime 'pasp' atom). ______________________________________________________ FFmpeg issue tracker <[EMAIL PROTECTED]> <https://roundup.mplayerhq.hu/roundup/ffmpeg/issue429> ______________________________________________________
