We have encoded YUV pixels into TIF images. TIF is one of the few image
formats that FFMPEG show support for yuv444p pixels (as identified by ffmpeg -h
encoder=tiff)
I am having trouble getting ffmpeg to read the pixels as yuv444p (as opposed to
the default rgb24):
Here is a typical command line:
ffmpeg -r 24 -f image2 -c:v tiff -pix_fmt yuv444p -start_number 0101 -y -i
"frames.%04d.tif" -r 24 -vframes 130 -threads 6 -c:v dnxhd -timecode
00:00:04:05 -vf format=yuv422p,scale=out_range=tv -b:v 36M /var/tmp/a_dnxhd.mov
In the output, we see that the pixels are not identified as yuv444p:
Stream #0:0: Video: tiff, rgb24, 1920x1080, 24 fps, 24 tbr, 24 tbn, 24 tbc
Does anyone have a suggestion for how to identify input image pixels as
yuv444p? Even better -- is there any way to get formats like bmp or ppm (which
can be streamed) to identify as yuv444p pixels? Writing intermediate images is
a hassle and I would much rather use ffmpeg -f image2pipe which I believe can
only be done with these simpler, streamable image formats.
Thanks,
Mayur
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