[Ffmpeg-devel] upsampling of subsampled video data

[Måns Rullgård]

Michael Niedermayer <michaelni at gmx.at> writes:

> Hi
>
> On Thu, Sep 14, 2006 at 12:32:39AM +0200, Baptiste Coudurier wrote:
>> Hi
>> 
>> Michael Niedermayer wrote:
>> > [...]
>> > 1. design or choose a video codec which works with more then 8bit per
>> > sample
>> 
>> H264 supports 10 to 12 bit per sample. DnxHD, JPEG 2000 also. D-Cinema
>> specs requires 12 bits XYZ samples for jp2k.
>
> jpeg, mjpeg, and mpeg4 support >8bit too but how many implementations
> support it? practically none (ignoring the obvious round to 8bit trick),
> and thats the problem here

The IJG libjpeg supports 12-bit samples.  The problem is that the apps
using it don't.  Neither does most display hardware.

-- 
M?ns Rullg?rd
mru at inprovide.com