On Tue, 12 Feb 2008 16:00:10 +0100 (CET) michael <subversion@mplayerhq.hu> wrote:
Modified: docs/nutissues.txt ============================================================================== --- docs/nutissues.txt (original) +++ docs/nutissues.txt Tue Feb 12 16:00:09 2008 @@ -162,3 +162,8 @@ How do we identify the interleaving A. fourcc B. extradata
I would vote for this with a single fourcc for pcm and a single fourcc for raw video. Having infos about the data format packed in the fourcc is ugly and useless. That just lead to inflexible lookup tables and the like. Instead we should just define the format in a way similar to what mp_image provide for video (colorspace, packed or not, shift used for the subsampled planes, etc). That would allow implementations simply supporting all definable format, instead of a selection of what happened to be commonly used formats at the time the implementation was written.
C. New field in the stream header +D. Only allow 1 standard interleaving + +What about the interleaving of non raw codecs, do all specify the +interleaving, or does any leave it to the container? If so, our options +would be down to only C.
On a related subject, it might also be useful to define the channel disposition when there is more than one. Mono and stereo can go by with the classical default, but as soon as there is more channels it is really unclear. And imho such info could still be usefull with 1 or 2 channels. Something like the position of each channel in polar coordinate (2D or 3D?) should be enouth. Albeu