[OE-core] [PATCH] gstreamer1.0-plugins-good: fix 4k playback for v4l2 decoder

[Burton, Ross]

On 1 September 2017 at 13:45, Nicolas Dechesne <nicolas.dechesne at linaro.org>
wrote:

> +++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0-
> plugins-good/0001-v4l2-Fix-4K-colorimetry.patch
> @@ -0,0 +1,47 @@
> +From 545646cccba243236e10362fe7325f89be57da1f Mon Sep 17 00:00:00 2001
> +From: Nicolas Dufresne <nicolas.dufresne at collabora.com>
> +Date: Tue, 18 Jul 2017 11:28:37 -0400
> +Subject: [PATCH] v4l2: Fix 4K colorimetry
> +
> +Since 1.6, the transfer function for BT2020 has been changed from BT709
> +to BT2020_12. It's the same function, but with more precision. As a side
> +effect, the V4L2 colorpsace didn't match GStreamer colorspace. When
> +GStreamer ended up making a guess, it would not match anything supported
> +by V4L2 anymore. This this by using BT2020_12 for BT2020 colorspace and
> +BT2020 transfer function in replacement of BT709 whenever a 4K
> +resolution is detected.
> +
> +Upstream-Status: Backport
>

This needs your s-o-b.

Ross
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