[FFmpeg-user] ffmpeg decoder color space / ventuz

[Paul B Mahol]

On 4/19/13, Dennis Koch <dennis.koch at outlook.com> wrote:
> hello there,
>
> what colorspace is the ffmpeg decoder using? all our videos in 709 and rgb
> are darker than the original in the ventuz output monitor.
> and afaik ventuz uses ffmpeg as decoder.

More info is needed.

Guessing: one of inputs or outputs are yuvj while inputs are not, and in some
casese colorspace conversion is not done as it should, see colormatrix filter.

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