diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-04-24 17:16:23 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-28 15:20:33 +0300 |
| commit | c702f68af959375f8943fbbedcdec77925f8d513 (patch) | |
| tree | 1f140028f812c68f361cd5a303d39bbdc7c39282 | |
| parent | 84b76d749b18a7badf4135deb160d66e4b2e2d57 (diff) | |
| download | linux-c702f68af959375f8943fbbedcdec77925f8d513.tar.xz | |
[media] vivid-tpg: add full range SMPTE 240M support
In order to be consistent with the other Y'CbCr encodings add
support for full range V4L2_YCBCR_ENC_SMPTE240M.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/media/platform/vivid/vivid-tpg.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/media/platform/vivid/vivid-tpg.c b/drivers/media/platform/vivid/vivid-tpg.c index 69cd8fb6aac4..59bdbae5f017 100644 --- a/drivers/media/platform/vivid/vivid-tpg.c +++ b/drivers/media/platform/vivid/vivid-tpg.c @@ -479,6 +479,11 @@ static void color_to_ycbcr(struct tpg_data *tpg, int r, int g, int b, { COEFF(-0.116, 224), COEFF(-0.384, 224), COEFF(0.5, 224) }, { COEFF(0.5, 224), COEFF(-0.445, 224), COEFF(-0.055, 224) }, }; + static const int smpte240m_full[3][3] = { + { COEFF(0.212, 255), COEFF(0.701, 255), COEFF(0.087, 255) }, + { COEFF(-0.116, 255), COEFF(-0.384, 255), COEFF(0.5, 255) }, + { COEFF(0.5, 255), COEFF(-0.445, 255), COEFF(-0.055, 255) }, + }; static const int bt2020[3][3] = { { COEFF(0.2627, 219), COEFF(0.6780, 219), COEFF(0.0593, 219) }, { COEFF(-0.1396, 224), COEFF(-0.3604, 224), COEFF(0.5, 224) }, @@ -513,7 +518,7 @@ static void color_to_ycbcr(struct tpg_data *tpg, int r, int g, int b, *cr = (((r - yc) * COEFF(1.0 / 0.9936, 224)) >> 16) + (128 << 4); break; case V4L2_YCBCR_ENC_SMPTE240M: - rgb2ycbcr(smpte240m, r, g, b, 16, y, cb, cr); + rgb2ycbcr(full ? smpte240m_full : smpte240m, r, g, b, y_offset, y, cb, cr); break; case V4L2_YCBCR_ENC_709: case V4L2_YCBCR_ENC_XV709: @@ -567,6 +572,11 @@ static void ycbcr_to_color(struct tpg_data *tpg, int y, int cb, int cr, { COEFF(1, 219), COEFF(-0.2253, 224), COEFF(-0.4767, 224) }, { COEFF(1, 219), COEFF(1.8270, 224), COEFF(0, 224) }, }; + static const int smpte240m_full[3][3] = { + { COEFF(1, 255), COEFF(0, 255), COEFF(1.5756, 255) }, + { COEFF(1, 255), COEFF(-0.2253, 255), COEFF(-0.4767, 255) }, + { COEFF(1, 255), COEFF(1.8270, 255), COEFF(0, 255) }, + }; static const int bt2020[3][3] = { { COEFF(1, 219), COEFF(0, 224), COEFF(1.4746, 224) }, { COEFF(1, 219), COEFF(-0.1646, 224), COEFF(-0.5714, 224) }, @@ -610,7 +620,7 @@ static void ycbcr_to_color(struct tpg_data *tpg, int y, int cb, int cr, *g = linear_to_rec709(lin_g >> 12); break; case V4L2_YCBCR_ENC_SMPTE240M: - ycbcr2rgb(smpte240m, y, cb, cr, 16, r, g, b); + ycbcr2rgb(full ? smpte240m_full : smpte240m, y, cb, cr, y_offset, r, g, b); break; case V4L2_YCBCR_ENC_709: case V4L2_YCBCR_ENC_XV709: |