[FFmpeg-user] Convert images to DNXHD 444

[Gonzalo Garramuño]

El 09/04/18 a las 15:29, Matt Kitcat escribió:
> ffmpeg -r 23.976 -i 
> C:\Users\Matt\Desktop\Newfolder\104_0020gn_01_X1_0%3d.tif -c:v dnxhd 
> -profile:v dnxhr_444  -s 1920x1080 -r 23.976  -y 
> C:\Users\Matt\Desktop\Newfolder\bt.mov
>
> This creates a file similar to quicktime export setting: 1080/23.976 
> DNxHD 444 10 bit
>
> ffmpeg reports
> Supported pixel formats: yuv422p yuv422p10le yuv444p10le gbrp10le
>
> So in fact I don't really want to create DNxHR but DNxHD 444 format. I 
> would have thought that could be possible?
It should be possible, but there is a bug in the code.  You may want to 
open a ticket.  The problem is that the bit_rate is never passed to the 
encoding function, leading to all DNxHD formats to fail.  The value in 
avctx->bit_rate is bogus.
I looked at fixing it, but the function is not trivial.  I will try 
tomorrow with a more fresh mind.

-- 
Gonzalo Garramuño