From c702f68af959375f8943fbbedcdec77925f8d513 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 24 Apr 2015 11:16:23 -0300 Subject: [PATCH] [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/vivid/vivid-tpg.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/vivid/vivid-tpg.c b/drivers/media/platform/vivid/vivid-tpg.c index 69cd8fb..59bdbae 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: -- 2.7.4