R210, V210 codecs

[Phil Rhodes]

Hi,

 

Do we have support for the Blackmagic uncompressed RGB and YUV (r210 and v210) AVI codecs?

 

They're very simple and I have experience of working with their internals, but I'm not nearly enough of a C coder to consider trying to do this myself - though I'll happily provide examples and any other assistance I can.

 

Vanilla ffmpeg traditionally did not support these and I was forced to use AVIsynth as a buffer; I don't know what you'd do under Linux.

 

The immediate next request would be to support exporting 10-bit DPX stills sequences from R210 and V210 AVIs. Open code for DPX already exists.

 

P

[Baptiste Coudurier]

V210 is completely supported, decoder and encoder. R210 is not.

--
Baptiste COUDURIER
Key fingerprint 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA
FFmpeg maintainer http://www.ffmpeg.org

[Phil Rhodes]

> V210 is completely supported, decoder and encoder. R210 is not.

You can encode V210? In an application that only supports 8-bit video? Call
me pedantic, but why wouldn't you just use HDYC or UYVY? :)

On a more serious note, what would it take to support R210, and stills
export that maintained the high bit-depth? Is ffmpeg capable internally of
handling 10-bit stuff? I'd presume not.

P

[Baptiste Coudurier]

If the source is 10bits, it will encode the full 10 bits. It currently
lacks 10bit _compressed_ input support such as prores or dnxhd.

[Phil Rhodes]

> If the source is 10bits, it will encode the full 10 bits. It currently
> lacks 10bit _compressed_ input support such as prores or dnxhd.

Handy, but - if it only supports uncompressed 10-bit input and the only
uncompressed 10-bit codec it supports for either input or output is V210,
how is this useful?

What are the chances of seeing R210?

P

[Baptiste Coudurier]

On 11/25/2009 03:11 PM, Phil Rhodes wrote:
>> If the source is 10bits, it will encode the full 10 bits. It currently
>> lacks 10bit _compressed_ input support such as prores or dnxhd.
>
> Handy, but - if it only supports uncompressed 10-bit input and the only
> uncompressed 10-bit codec it supports for either input or output is
> V210, how is this useful?

Rescaling for example.

> What are the chances of seeing R210?

Well, good if there is a sponsor.

[Phil Rhodes]

> Well, good if there is a sponsor.

Price please for this and DPX frame extraction.

And for DVCPRO-HD.

:)

P

[Phil Rhodes]

Hang on a sec.

Wouldn't the code for r210 only be trivially different to v210, if some
other part of ffmpeg was handling RGB/YUV differentiation?

P