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[46.4.26.8]) by smtp.gmail.com with ESMTPSA id x198sm21884itb.10.2017.09.01.05.45.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 01 Sep 2017 05:45:26 -0700 (PDT) From: Nicolas Dechesne To: openembedded-core@lists.openembedded.org Date: Fri, 1 Sep 2017 14:45:06 +0200 Message-Id: <20170901124506.19317-1-nicolas.dechesne@linaro.org> X-Mailer: git-send-email 2.11.0 Cc: Nicolas Dechesne Subject: [PATCH] gstreamer1.0-plugins-good: fix 4k playback for v4l2 decoder X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Sep 2017 12:45:27 -0000 Backport a fix already merged upstream in master and 1.12 branch, it fixes 4K video playback on any platform that uses v4l2 codecs, such as Dragonboard 820c. Signed-off-by: Nicolas Dechesne --- .../0001-v4l2-Fix-4K-colorimetry.patch | 47 ++++++++++++++++++++++ .../gstreamer/gstreamer1.0-plugins-good_1.12.2.bb | 1 + 2 files changed, 48 insertions(+) create mode 100644 meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good/0001-v4l2-Fix-4K-colorimetry.patch diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good/0001-v4l2-Fix-4K-colorimetry.patch b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good/0001-v4l2-Fix-4K-colorimetry.patch new file mode 100644 index 0000000000..84d22e6b0e --- /dev/null +++ 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 +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 + +--- + sys/v4l2/gstv4l2object.c | 7 +++++-- + 1 file changed, 5 insertions(+), 2 deletions(-) + +diff --git a/sys/v4l2/gstv4l2object.c b/sys/v4l2/gstv4l2object.c +index 61244455f..aae2c55e7 100644 +--- a/sys/v4l2/gstv4l2object.c ++++ b/sys/v4l2/gstv4l2object.c +@@ -1960,7 +1960,7 @@ gst_v4l2_object_get_colorspace (struct v4l2_format *fmt, + case V4L2_COLORSPACE_BT2020: + cinfo->range = GST_VIDEO_COLOR_RANGE_16_235; + cinfo->matrix = GST_VIDEO_COLOR_MATRIX_BT2020; +- cinfo->transfer = GST_VIDEO_TRANSFER_BT709; ++ cinfo->transfer = GST_VIDEO_TRANSFER_BT2020_12; + cinfo->primaries = GST_VIDEO_COLOR_PRIMARIES_BT2020; + break; + case V4L2_COLORSPACE_SMPTE240M: +@@ -2062,7 +2062,10 @@ gst_v4l2_object_get_colorspace (struct v4l2_format *fmt, + + switch (transfer) { + case V4L2_XFER_FUNC_709: +- cinfo->transfer = GST_VIDEO_TRANSFER_BT709; ++ if (fmt->fmt.pix.height > 2160) ++ cinfo->transfer = GST_VIDEO_TRANSFER_BT2020_12; ++ else ++ cinfo->transfer = GST_VIDEO_TRANSFER_BT709; + break; + case V4L2_XFER_FUNC_SRGB: + cinfo->transfer = GST_VIDEO_TRANSFER_SRGB; +-- +2.14.1 + diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.12.2.bb b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.12.2.bb index 3d38f007dc..f9593c99aa 100644 --- a/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.12.2.bb +++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-good_1.12.2.bb @@ -10,6 +10,7 @@ SRC_URI = " \ file://avoid-including-sys-poll.h-directly.patch \ file://ensure-valid-sentinel-for-gst_structure_get.patch \ file://0001-introspection.m4-prefix-pkgconfig-paths-with-PKG_CON.patch \ + file://0001-v4l2-Fix-4K-colorimetry.patch \ " SRC_URI[md5sum] = "20254217d9805484532e08ff1c3aa296" SRC_URI[sha256sum] = "5591ee7208ab30289a30658a82b76bf87169c927572d9b794f3a41ed48e1ee96" -- 2.11.0