[Ffmpeg-devel] Re: [PATCH] DVCPRO50 support
Fri Mar 3 22:21:00 CET 2006
Roman Shaposhnick <rvs at sun.com> writes:
> On Fri, Mar 03, 2006 at 11:40:08AM +0100, Baptiste COUDURIER wrote:
>> Mans Rullgard wrote:
>> > Baptiste COUDURIER said:
>> They do not share parameters (different bitrates, different pixel
>> formats) and in `industry` (ISO, MPEG, SMPTE) that means oftenly
>> different specifications (for DV it IS the case), thats why they do have
>> different names.
> Just to make it clear -- I don't care how industry names things,
> but the fact that these 3 flavors of DV have the same picture encoding
> algorithms with small amount of knobs designed to address bitstream
> constraints and differences in sampling -- make them all just a DV
> codec in my book. Now, I do understand the convenience factor of having
> them as separate codecs -- but lets not be confused by the ffmpeg's
> current restrictions.
In that case, using separate codec IDs would be like using separate
codec IDs for main profile and high profile MPEG2. Nobody does that.
> Now, DVCPRO 100 is, in fact a different CODEC regardless of the name
> being similar to the DVCPRO 50.
Sort of like MPEG4 isn't all that much like MPEG2, and MPEG4 AVC is
yet another animal?
mru at inprovide.com
More information about the ffmpeg-devel