On Wed, May 22, 2013 at 12:28 PM, Brad O'Hearne <[email protected]> wrote: >> The capabilities of container formats >> _and_ muxers vary a lot. So this can only really be discussed in a >> useful way when were talking about the same thing. > > Yes, but these are facilitated through a common code layer. Quite frankly, it > is hard to tell where common behavior and muxer-specific behavior starts / > ends.
This is true at many levels, I faced similar woes in the past with codecs, and options that codecs ignored or interpreted in varied ways. It would be nice to have detailled: * Documentation about those codec/muxer/format-specific behaviors * Machine-readable capabilities descriptions. There's already some of it in CODEC_CAP bits, perhaps it should be expanded. Especially audio, those cap bits seem to care only for video stuff. Example: VBR, ABR, CBR. One has to guess whether a particular codec supports any of those in any meaningful way. Multipass. Maybe there's some facility for that I missed, in that case I would love to be enlightened ;) _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
