[FFmpeg-devel] evaluating the experimental status of ffv1 version 3

Peter B. pb at das-werkstatt.com
Thu Oct 4 13:12:48 CEST 2012


Quoting Michael Niedermayer <michaelni at gmx.at>:

> On Tue, Oct 02, 2012 at 03:38:28PM +0200, Peter B. wrote:
>> Is there an error on my side?
>
> maybe
>
> the problem is that you are not working with 16bit material and the
> encoder just stores 10bit because thats what v210x tells it is in
> there, somewhere this ends up introducing a difference
>
>
> if you first convert to 16bit raw and store that seperately then md5s
> match
>
> ... -an -pix_fmt yuv422p16le -vcodec rawvideo  test16.nut

Did that and now the checksums behave as expected. Thanks!

I must admit though, that I was surprised that both raw nut files have  
the identical filesize for yuv422p16le and yuv422p10le. Is that due to  
yuv422p10le being padded to 32bits?

Regards,
Pb



More information about the ffmpeg-devel mailing list