I recently stumbled into AVColorSpace and the corresponding variables inside the AVCodecContext, as well as the frame functions to retrieve the color space. My question is the following: Are these color spaces used by libav in any shape or form or are they hints to the decoding party on how to display the images? I ask because I tried muxing a BT709 movie file and the result was the same as without the tag.

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Gonzalo Garramuño
[email protected]

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