[FFmpeg-devel] AVComponentDescriptor & v210

[Michael Niedermayer]

On Sat, Jun 26, 2010 at 06:49:59PM -0400, Daniel Kristjansson wrote:
> I've been trying to wrap my head around AVComponentDescriptor
> and as far as I can tell it can not represent packed 10 bit
> formats like v210.
> 
> The v210 format is:
> 
>  b3 |  b2 |  b1 |  b0 in little-endian
> ? ? | Cr0 | Y'0 | Cb0 |
> ? ? | Y'2 | Cb2 | Y'1 |
> ? ? | Cb4 | Y'3 | Cr0 |
> ? ? | Y'5 | Cr4 | Y'4 |
> 
> Where the ?'s are 1-bit padding and the rest are 10 bit samples.
> 
> Am I just not understanding how AVComponentDescriptor is supposed
> to work? It would seem that it you would need 3 sets of offsets
> and 2 sets of shifts per component at minimum to represent this.
> 
> Also for submission to ffmpeg what should the format be called?
> I'm calling it PIX_FMT_UYVYUYVYUYVY422 right now, but that seems

its not a pixel format. Its a very poorly compressing codec.


> rather cumbersome. This is the Apple format for uncompressed 10-bit

yes, apple


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No human being will ever know the Truth, for even if they happen to say it
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