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[media] media/vivid: Add support for Y16 format

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Support for V4L2_PIX_FMT_Y16, a 16 bit greyscale format.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Ricardo Ribalda 2015-05-04 05:07:29 -03:00 committed by Mauro Carvalho Chehab
parent 9ea964f369
commit 18b3b3b8ed
2 changed files with 16 additions and 1 deletions
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9
drivers/media/platform/vivid/vivid-tpg.c
View file

@ -220,6 +220,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
case V4L2_PIX_FMT_ARGB32:
case V4L2_PIX_FMT_ABGR32:
case V4L2_PIX_FMT_GREY:
case V4L2_PIX_FMT_Y16:
tpg->is_yuv = false;
break;
case V4L2_PIX_FMT_YUV444:
@ -313,6 +314,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
case V4L2_PIX_FMT_YUV444:
case V4L2_PIX_FMT_YUV555:
case V4L2_PIX_FMT_YUV565:
case V4L2_PIX_FMT_Y16:
tpg->twopixelsize[0] = 2 * 2;
break;
case V4L2_PIX_FMT_RGB24:
@ -712,7 +714,8 @@ static void precalculate_color(struct tpg_data *tpg, int k)
g <<= 4;
b <<= 4;
}
if (tpg->qual == TPG_QUAL_GRAY || tpg->fourcc == V4L2_PIX_FMT_GREY) {
if (tpg->qual == TPG_QUAL_GRAY || tpg->fourcc == V4L2_PIX_FMT_GREY ||
tpg->fourcc == V4L2_PIX_FMT_Y16) {
/* Rec. 709 Luma function */
/* (0.2126, 0.7152, 0.0722) * (255 * 256) */
r = g = b = (13879 * r + 46688 * g + 4713 * b) >> 16;
@ -895,6 +898,10 @@ static void gen_twopix(struct tpg_data *tpg,
case V4L2_PIX_FMT_GREY:
buf[0][offset] = r_y;
break;
case V4L2_PIX_FMT_Y16:
buf[0][offset] = 0;
buf[0][offset+1] = r_y;
break;
case V4L2_PIX_FMT_YUV422P:
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YUV420M:

8
drivers/media/platform/vivid/vivid-vid-common.c
View file

@ -188,6 +188,14 @@ struct vivid_fmt vivid_formats[] = {
.planes = 1,
.buffers = 1,
},
{
.fourcc = V4L2_PIX_FMT_Y16,
.vdownsampling = { 1 },
.bit_depth = { 16 },
.is_yuv = true,
.planes = 1,
.buffers = 1,
},
{
.fourcc = V4L2_PIX_FMT_RGB332, /* rrrgggbb */
.vdownsampling = { 1 },