[FFmpeg-devel] Official status of FFv1?

[Jason Garrett-Glaser]

> What is the implementation status of x264 lossless in libavcodec, and
> would it be possible to have intra-frame encoding only? I've read that
> it's compression is inter-frame.

FFV1 will crush x264 compression-wise on intra-frame encoding.  x264's
lossless intra compression sucks because of idiots writing specs.

On Mon, Mar 22, 2010 at 11:15 AM, Baptiste Coudurier
<baptiste.coudurier at gmail.com> wrote:
> On 03/22/2010 10:31 AM, Jason Garrett-Glaser wrote:
>>>
>
> Do you have samples so I could verify this ?
>
> In all the tests I made, FFV1 outperformed x264 lossless, and was much
> faster.

Did you compare apples against apples (CABAC vs range, CAVLC vs rice)?
 Did you try x264 --preset ultrafast for encoding?

More importantly, FFV1 in inter mode cannot be threaded (inherently
so), while H.264 can.

Of course, now that he's said he only wants lossless, there's no
reason to use x264.

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