[FFmpeg-user] RGB-YUV color shift

[Bob Maple]

On 2/15/2013 4:50 AM, Chris Bouchard wrote:

> I have found the same colour shift, and that using
> -vf colormatrix=bt601:bt709 will fix the colours to
> be almost 100% accurate for conversions from RGB to YUV.
> Let's say 98% accurate; most people wouldn't notice.

Could I ask how you are testing this?  I am getting quite the opposite 
result converting a TGA codec Quicktime to ProRes or h264 using that 
colormatrix conversion, the results are very different from the original.

Bob