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[3/4,media] exynos-gsc: fix supported RGB pixel format

Message ID 1475270204-14005-4-git-send-email-javier@osg.samsung.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Javier Martinez Canillas Sept. 30, 2016, 9:16 p.m. UTC
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 7f2816e51ea1 ("[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>
---

 drivers/media/platform/exynos-gsc/gsc-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index fac0c0246ad4..8bb1d2be7234 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -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,