> +A lot of video codecs and formats can store the @emph{aspect ratio} of the > +video: this is the ratio between the width and the height of either the full > +image (DAR, display aspect ratio) or individual pixels (SAR, sample aspect > +ratio). For example, CGA screens at resolution 640×350 had 4:3 DAR and 35:48 > +SAR.
The DAR for analogue compatible media (e.g. SD DVB) comes from the active samples and not from the "full image". Kieran _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel