[FFmpeg-user] Convert images to DNXHD 444

Wayne Poll WPoll at nhnz.tv
Tue Apr 10 00:08:25 EEST 2018


> -----Original Message-----
> From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Matt Kitcat
> Sent: Tuesday, 10 April 2018 6:30
> To: FFmpeg user questions
> Subject: Re: [FFmpeg-user] Convert images to DNXHD 444
>
> 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 is possible but the 440 profile isn't valid for 23.98fps material - you should be using DNxHD 350x for 10-bit 4:4:4 RGB @ 23.98fps. The DNxHD 440 (8-bit) and DNxHD 440x (10-bit) are only valid at higher frame rates, such as 29.97p, 59.94p and 60p

Wayne Poll

>
> -----Original Message----- 
> From: Gonzalo Garramuño
> Sent: Monday, April 9, 2018 6:44 PM
> To: Matt Kitcat ; FFmpeg user questions
> Subject: Re: [FFmpeg-user] Convert images to DNXHD 444
>
>
>
> El 09/04/18 a las 14:38, Matt Kitcat escribió:
> Hi All
> I have been trying to convert an image sequence (16 bit tiff) to DNXHD 
> 444. It can be done with Quicktime pro on Windows but I have completely 
> failed with ffmpeg.
>
> ffmpeg -r 23.976 -i 
> C:\Users\Matt\Desktop\Newfolder\104_0020gn_01_X1_0%3d.tif -c:v 
> dnxhd -profile:v 3  -s 1920x1080 -r 23.976  -y 
> C:\Users\Matt\Desktop\Newfolder\bt.mov
>
> Your -profile is wrong.  Try:
>
> -profile:v dnxhr_444
>
> -- 
> Gonzalo Garramuño

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