On Sun, Jun 18, 2006 at 03:59:04PM +0300, Ivan Kalvachev wrote:
First few word:
Codec identification is actually most important part of the container, because all other so technically great features are "under the hood".
Fourcc is among the few things that users (even windows one!) are aware these days .
Personally I suspect this is only because the flaws in the system often require workarounds (changing fourcc from XVID to DIVX so that your friend's stupid player will actually play the file).
Second:
The real issue is not how we will save and name codecs. The real issue is how to prevent propagation of existing fourcc schemes into nut, with all their drawbacks.
What I think we may need:
format_id - mandatory field. identification of the format, by standard or bitstream syntax. e.g. "mpeg2","h264","theora", "vorbis".
profile - optional field. depends on the specifications (e.g. main simple, etc...). This field informs that full possibilities of the format are not used.
I don't know about ALL codecs, but in mpeg2/4 this type of info should already be in the sequence parameter set.