Am Sa., 18. Jan. 2020 um 09:46 Uhr schrieb Andreas Rheinhardt <andreas.rheinha...@gmail.com>: > > Up until now, the Matroska muxer would mark a track as default if it had > the disposition AV_DISPOSITION_DEFAULT or if there was no track with > AV_DISPOSITION_DEFAULT set; in the latter case even more than one track > of a kind (audio, video, subtitles) was marked as default which is not > sensible.
It would not help only to change this strange behaviour? > This commit changes the logic used to mark tracks as default. There are > now three modes for this: > a) In the "infer" mode the first track of every type (audio, video, > subtitles) with default disposition set will be marked as default; if > there is no such track (for a given type), then the first track of this > type (if existing) will be marked as default. This behaviour is inspired > by mkvmerge. It ensures that the default flags will be set in a sensible > way even if the input comes from containers that lack the concept of > default flags. This mode is the default mode. > b) The "infer_no_subs" mode is similar to the "infer" mode; the > difference is that if no subtitle track with default disposition exists, > no subtitle track will be marked as default at all. > c) The "passthrough" mode: Here the track will be marked as default if > and only the corresponding input stream had disposition default. > > This fixes ticket #8173 (the passthrough mode is ideal for this) as > well as ticket #8416 (the "infer_no_subs" mode leads to the desired > output). Doesn't this duplicate the cli option for disposition? (Just asking, I know this is a can of worms) I am wondering if a new option is necessary and useful. Carl Eugen _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
