[FFmpeg-user] Prores colormatrix=bt709:bt601 not working - ffmpeg 2.5

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Dec 10 11:41:28 CET 2014

Kevin Wells <kevwells <at> hotmail.co.uk> writes:

> Hi, I am down-converting a Prores HD file running 
> at 23.98fps which contains HD color info (bt.709),
> converting it to SD PAL 25fps, via a speed change. 
> All seems to be working OK, except the Prores 
> output file contains no color info

Do you mean that some "metadata" is missing in the 
output file (that you need in your workflow) or 
that the colours in the output file are not as 
you expect them?

For future questions, please remember to test 
current FFmpeg git head.

Carl Eugen

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