avcodec options: add enum option for color_primaries

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

libavcodec/options_table.h

@@ -367,7 +367,15 @@ static const AVOption avcodec_options[] = {
 {"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {.dbl = 1.0/3 }, 0.0, FLT_MAX, V|E},
 {"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  AV_OPT_TYPE_FLOAT, {.dbl = 3 },     0.0, FLT_MAX, V|E},
 {"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {.i64 = 1 }, 1, INT_MAX, A|V|E|D},
-{"color_primaries", NULL, OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64 = AVCOL_PRI_UNSPECIFIED }, 1, AVCOL_PRI_NB-1, V|E|D},
+{"color_primaries", "color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64 = AVCOL_PRI_UNSPECIFIED }, 1, AVCOL_PRI_NB-1, V|E|D, "color_primaries_type"},
+{"bt709",       "BT.709",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT709 },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt470m",      "BT.470 M",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470M },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt470bg",     "BT.470 BG",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470BG },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte170m",   "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"smpte240m",   "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE240M },   INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"film",        "Film",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_FILM },        INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
+{"bt2020",      "BT.2020",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT2020 },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
 {"color_trc", NULL, OFFSET(color_trc), AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, AVCOL_TRC_NB-1, V|E|D},
 {"colorspace", NULL, OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = AVCOL_SPC_UNSPECIFIED }, 1, AVCOL_SPC_NB-1, V|E|D},
 {"color_range", NULL, OFFSET(color_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED }, 0, AVCOL_RANGE_NB-1, V|E|D},