[FFmpeg-devel] [PATCH] fftools/ffplay: 240M matrix is not the same as BT.601

Marton Balint cus at passwd.hu
Tue Jun 8 21:24:45 EEST 2021



On Tue, 8 Jun 2021, Valerii Zapodovnikov wrote:

> Wait a second. SDL_SetYUVConversionMode does not support 444? You are
> setting it to mode = SDL_YUV_CONVERSION_AUTOMATIC if it is 444, which I
> suppose works on just the size of frame?

SDL itself does not support YUV444 pixel format, by the time the frame is 
uploaded into an SDL texture, it is already got converted into one of the 
pixel formats the SDL renderer supports via acceleration. And that is 
usually RGB, YUV420 and for some renderers YUYV422/UYVY422.

Regards,
Marton


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