From dc9a5cbfd7c30d4f0597ec0aad91dadf63defbba Mon Sep 17 00:00:00 2001 From: Niklas Haas Date: Tue, 28 Jun 2016 14:28:32 +0200 Subject: vo_opengl: revise the transfer curve logic Instead of hard-coding a big list, move some of the functionality to csputils. Affects both the auto-guess blacklist and the peak estimation. Also update the comments. --- video/csputils.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'video/csputils.c') diff --git a/video/csputils.c b/video/csputils.c index 65b26acb3a..d419152e2c 100644 --- a/video/csputils.c +++ b/video/csputils.c @@ -437,6 +437,31 @@ struct mp_csp_primaries mp_get_csp_primaries(enum mp_csp_prim spc) } } +// Get the relative peak of a transfer curve, that is: (source reference / +// display reference), or 0 if there is none (i.e. source has an absolute peak) +float mp_csp_trc_rel_peak(enum mp_csp_trc trc) +{ + switch (trc) { + case MP_CSP_TRC_SMPTE_ST2084: return 0.0; // This has a fixed peak + case MP_CSP_TRC_ARIB_STD_B67: return 12.0; + case MP_CSP_TRC_V_LOG: return 46.0855; + } + + return 1.0; +} + +bool mp_trc_is_hdr(enum mp_csp_trc trc) +{ + switch (trc) { + case MP_CSP_TRC_SMPTE_ST2084: + case MP_CSP_TRC_ARIB_STD_B67: + case MP_CSP_TRC_V_LOG: + return true; + } + + return false; +} + // Compute the RGB/XYZ matrix as described here: // http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html static void mp_get_rgb2xyz_matrix(struct mp_csp_primaries space, float m[3][3]) -- cgit v1.2.3