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[media] exynos-gsc: fix supported RGB pixel format

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The driver exposes 32-bit A/XRGB 8-8-8-8 as supported format but testing
shows that using this format produces frames with wrong colors. The test
was done with the following GStreamer pipeline:

$ gst-launch-1.0 videotestsrc num-buffers=20 ! video/x-raw,format=UYVY \
! v4l2video3convert ! video/x-raw,format=xRGB ! videoconvert ! kmssink

The manual seems to state that the Pixel Format are in Little Endianness
so instead use the 32-bit BGRA/X 8-8-8-8 pixel format. This format works
correctly when using the following pipeline:

$ gst-launch-1.0 videotestsrc num-buffers=20 ! video/x-raw,format=UYVY \
! v4l2video3convert ! video/x-raw,format=BGRx ! kmssink

This change is similar to commit 7f2816e51e ("[media] s5p-fimc: Changed
RGB32 to BGR32") that fixed the same issue on a different Samsung driver.

Suggested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Javier Martinez Canillas 2016-09-30 18:16:43 -03:00 committed by Mauro Carvalho Chehab
parent daba4dfbd2
commit 8a661745b7
1 changed files with 2 additions and 2 deletions
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4
drivers/media/platform/exynos-gsc/gsc-core.c
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@ -39,8 +39,8 @@ static const struct gsc_fmt gsc_formats[] = {
.num_planes = 1,
.num_comp = 1,
}, {
.name = "XRGB-8-8-8-8, 32 bpp",
.pixelformat = V4L2_PIX_FMT_RGB32,
.name = "BGRX-8-8-8-8, 32 bpp",
.pixelformat = V4L2_PIX_FMT_BGR32,
.depth = { 32 },
.color = GSC_RGB,
.num_planes = 1,