diff options
Diffstat (limited to 'video/out/gl_video.c')
| -rw-r--r-- | video/out/gl_video.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/video/out/gl_video.c b/video/out/gl_video.c index 9c8a64365d..23b19b3125 100644 --- a/video/out/gl_video.c +++ b/video/out/gl_video.c @@ -937,7 +937,8 @@ static void compile_shaders(struct gl_video *p) bool use_input_gamma = p->input_gamma != 1.0; bool use_conv_gamma = p->conv_gamma != 1.0; bool use_const_luma = p->image_params.colorspace == MP_CSP_BT_2020_C; - enum mp_csp_trc gamma_fun = p->image_params.gamma; + + enum mp_csp_trc gamma_fun = MP_CSP_TRC_NONE; // If either color correction option (3dlut or srgb) is enabled, or if // sigmoidal upscaling is requested, or if the source is linear XYZ, we @@ -945,6 +946,20 @@ static void compile_shaders(struct gl_video *p) bool use_linear_light = p->opts.linear_scaling || p->opts.sigmoid_upscaling || use_cms || is_xyz; + if (use_linear_light) { + // We use the color level range to distinguish between PC + // content like images, which are most likely sRGB, and TV content + // like movies, which are most likely BT.1886. XYZ input is always + // treated as linear. + if (is_xyz) { + gamma_fun = MP_CSP_TRC_LINEAR; + } else if (p->image_params.colorlevels == MP_CSP_LEVELS_PC) { + gamma_fun = MP_CSP_TRC_SRGB; + } else { + gamma_fun = MP_CSP_TRC_BT_1886; + } + } + // The inverse of the above transformation is normally handled by // the CMS cases, but if CMS is disabled we need to go back manually bool use_inv_bt1886 = false; |