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| author | Niklas Haas <git@nand.wakku.to> | 2014-03-26 23:00:09 +0100 |
|---|---|---|
| committer | wm4 <wm4@nowhere> | 2014-06-22 19:02:00 +0200 |
| commit | 204fed4d5b4aa20b5a6b5824f5d4e71ccbaf87fb (patch) | |
| tree | 60605dd0ae0de7bb2a3b5ad45203a8d68fba293f /video/csputils.c | |
| parent | ef6db24366da2974cdee1d9578cf91910b5faa9c (diff) | |
| download | mpv-204fed4d5b4aa20b5a6b5824f5d4e71ccbaf87fb.tar.bz2 mpv-204fed4d5b4aa20b5a6b5824f5d4e71ccbaf87fb.tar.xz | |
video: Support BT.2020 constant luminance system
Signed-off-by: wm4 <wm4@nowhere>
Diffstat (limited to 'video/csputils.c')
| -rw-r--r-- | video/csputils.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/video/csputils.c b/video/csputils.c index 32461697c0..43dd17511a 100644 --- a/video/csputils.c +++ b/video/csputils.c @@ -42,7 +42,8 @@ const char *const mp_csp_names[MP_CSP_COUNT] = { "BT.601 (SD)", "BT.709 (HD)", "SMPTE-240M", - "BT.2020-NC (UHD)", + "BT.2020-NCL (UHD)", + "BT.2020-CL (UHD)", "RGB", "XYZ", "YCgCo", @@ -83,6 +84,7 @@ enum mp_csp avcol_spc_to_mp_csp(int avcolorspace) case AVCOL_SPC_BT470BG: return MP_CSP_BT_601; #if HAVE_AVCOL_SPC_BT2020 case AVCOL_SPC_BT2020_NCL: return MP_CSP_BT_2020_NC; + case AVCOL_SPC_BT2020_CL: return MP_CSP_BT_2020_C; #endif case AVCOL_SPC_SMPTE170M: return MP_CSP_BT_601; case AVCOL_SPC_SMPTE240M: return MP_CSP_SMPTE_240M; @@ -122,6 +124,7 @@ int mp_csp_to_avcol_spc(enum mp_csp colorspace) case MP_CSP_BT_601: return AVCOL_SPC_BT470BG; #if HAVE_AVCOL_SPC_BT2020 case MP_CSP_BT_2020_NC: return AVCOL_SPC_BT2020_NCL; + case MP_CSP_BT_2020_C: return AVCOL_SPC_BT2020_CL; #endif case MP_CSP_SMPTE_240M: return AVCOL_SPC_SMPTE240M; case MP_CSP_RGB: return AVCOL_SPC_RGB; @@ -310,6 +313,15 @@ void mp_get_yuv2rgb_coeffs(struct mp_csp_params *params, float m[3][4]) case MP_CSP_BT_709: luma_coeffs(m, 0.2126, 0.7152, 0.0722); break; case MP_CSP_SMPTE_240M: luma_coeffs(m, 0.2122, 0.7013, 0.0865); break; case MP_CSP_BT_2020_NC: luma_coeffs(m, 0.2627, 0.6780, 0.0593); break; + case MP_CSP_BT_2020_C: { + // Note: This outputs into the [-0.5,0.5] range for chroma information. + // If this clips on any VO, a constant 0.5 coefficient can be added + // to the chroma channels to normalize them into [0,1]. This is not + // currently needed by anything, though. + static const float ycbcr_to_crycb[3][4] = {{0, 0, 1}, {1, 0, 0}, {0, 1, 0}}; + memcpy(m, ycbcr_to_crycb, sizeof(ycbcr_to_crycb)); + break; + } case MP_CSP_RGB: { static const float ident[3][4] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}; memcpy(m, ident, sizeof(ident)); |