From fbacd5de31de964f7cd562304ab1c9b4a0d76015 Mon Sep 17 00:00:00 2001 From: Niklas Haas Date: Sat, 28 Feb 2015 00:59:09 +0100 Subject: csputils: add missing gamma support We have MP_CSP_TRC defined, but it wasn't being used by practically anything. This commit adds missing conversion logic, adds it to mp_image, and moves the auto-guessing logic to where it should be, in mp_image_params_guess_csp (and out of vo_opengl). Note that this also fixes a minor bug: csp_prim was not being copied between mp_image structs if the format was not YUV in both cases, but this is wrong - the primaries are always relevant. --- video/csputils.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'video/csputils.c') diff --git a/video/csputils.c b/video/csputils.c index 90eec39d36..cbd9734819 100644 --- a/video/csputils.c +++ b/video/csputils.c @@ -65,6 +65,13 @@ const char *const mp_csp_prim_names[MP_CSP_PRIM_COUNT] = { "BT.470 M", }; +const char *const mp_csp_trc_names[MP_CSP_TRC_COUNT] = { + "Autoselect", + "BT.1886 (SD, HD, UHD)", + "sRGB (IEC 61966-2-1)", + "Linear light", +}; + const char *const mp_csp_equalizer_names[MP_CSP_EQ_COUNT] = { "brightness", "contrast", @@ -142,6 +149,21 @@ enum mp_csp_prim avcol_pri_to_mp_csp_prim(int avpri) } } +enum mp_csp_trc avcol_trc_to_mp_csp_trc(int avtrc) +{ + switch (avtrc) { + case AVCOL_TRC_BT709: + case AVCOL_TRC_SMPTE170M: + case AVCOL_TRC_SMPTE240M: + case AVCOL_TRC_BT1361_ECG: + case AVCOL_TRC_BT2020_10: + case AVCOL_TRC_BT2020_12: return MP_CSP_TRC_BT_1886; + case AVCOL_TRC_IEC61966_2_1: return MP_CSP_TRC_SRGB; + case AVCOL_TRC_LINEAR: return MP_CSP_TRC_LINEAR; + default: return MP_CSP_TRC_AUTO; + } +} + int mp_csp_to_avcol_spc(enum mp_csp colorspace) { switch (colorspace) { @@ -181,6 +203,17 @@ int mp_csp_prim_to_avcol_pri(enum mp_csp_prim prim) } } +int mp_csp_trc_to_avcol_trc(enum mp_csp_trc trc) +{ + switch (trc) { + // We just call it BT.1886 since we're decoding, but it's still BT.709 + case MP_CSP_TRC_BT_1886: return AVCOL_TRC_BT709; + case MP_CSP_TRC_SRGB: return AVCOL_TRC_IEC61966_2_1; + case MP_CSP_TRC_LINEAR: return AVCOL_TRC_LINEAR; + default: return AVCOL_TRC_UNSPECIFIED; + } +} + enum mp_csp mp_csp_guess_colorspace(int width, int height) { return width >= 1280 || height > 576 ? MP_CSP_BT_709 : MP_CSP_BT_601; -- cgit v1.2.3