h265: text description of range extension profiles

Author: funman

itu/h265.h

@@ -412,6 +412,103 @@ static inline uint32_t h265hvcc_get_profile_compatibility(const uint8_t *p)
     return (p[2] << 24) | (p[3] << 16) | (p[4] << 8) | p[5];
 }
 
+static const char *h265_get_range_ext_profile(bool max_12bit, bool max_10bit, bool max_8bit, bool max_422chroma, bool max_420chroma, bool max_monochrome, bool intra, bool one_picture_only, bool lower_bit_rate)
+{
+    /* ITU-T H.265 (V9) Table A.2 */
+
+#define H265_CONSTRAINT_MAX_12BIT           7
+#define H265_CONSTRAINT_MAX_10BIT           6
+#define H265_CONSTRAINT_MAX_8BIT            5
+#define H265_CONSTRAINT_MAX_422CHROMA       4
+#define H265_CONSTRAINT_MAX_420CHROMA       3
+#define H265_CONSTRAINT_MAX_MONOCHROME      2
+#define H265_CONSTRAINT_INTRA               1
+#define H265_CONSTRAINT_ONE_PICTURE_ONLY    0
+
+#define H265_PROFILE_16_BIT 0
+#define H265_PROFILE_12_BIT (1 << H265_CONSTRAINT_MAX_12BIT)
+#define H265_PROFILE_10_BIT (1 << H265_CONSTRAINT_MAX_12BIT | 1 << H265_CONSTRAINT_MAX_10BIT)
+#define H265_PROFILE_8_BIT  (1 << H265_CONSTRAINT_MAX_12BIT | 1 << H265_CONSTRAINT_MAX_10BIT | 1 << H265_CONSTRAINT_MAX_8BIT)
+
+#define H265_PROFILE_INTRA (1 << H265_CONSTRAINT_INTRA)
+
+#define H265_PROFILE_STILL_PICTURE (H265_PROFILE_INTRA | 1 << H265_CONSTRAINT_ONE_PICTURE_ONLY)
+
+#define H265_PROFILE_444 0
+#define H265_PROFILE_422 (1 << H265_CONSTRAINT_MAX_422CHROMA)
+#define H265_PROFILE_420 (1 << H265_CONSTRAINT_MAX_422CHROMA | 1 << H265_CONSTRAINT_MAX_420CHROMA)
+
+#define H265_PROFILE_MONOCHROME (H265_PROFILE_420 | 1 << H265_CONSTRAINT_MAX_MONOCHROME)
+
+    uint8_t constraint = (!!max_12bit << H265_CONSTRAINT_MAX_12BIT) |
+        (!!max_10bit << H265_CONSTRAINT_MAX_10BIT) |
+        (!!max_8bit << H265_CONSTRAINT_MAX_8BIT) |
+        (!!max_422chroma << H265_CONSTRAINT_MAX_422CHROMA) |
+        (!!max_420chroma << H265_CONSTRAINT_MAX_420CHROMA) |
+        (!!max_monochrome << H265_CONSTRAINT_MAX_MONOCHROME) |
+        (!!intra << H265_CONSTRAINT_INTRA) |
+        (!!one_picture_only << H265_CONSTRAINT_ONE_PICTURE_ONLY);
+
+    if (!intra && !lower_bit_rate)
+        goto unknown;
+
+    switch (constraint) {
+        case H265_PROFILE_MONOCHROME | H265_PROFILE_8_BIT:
+            return "Monochrome";
+        case H265_PROFILE_MONOCHROME | H265_PROFILE_10_BIT:
+            return "Monochrome 10";
+        case H265_PROFILE_MONOCHROME | H265_PROFILE_12_BIT:
+            return "Monochrome 12";
+        case H265_PROFILE_MONOCHROME | H265_PROFILE_16_BIT:
+            return "Monochrome 16";
+
+        case H265_PROFILE_12_BIT | H265_PROFILE_420:
+            return "Main 12";
+        case H265_PROFILE_10_BIT | H265_PROFILE_422:
+            return "Main 4:2:2 10";
+        case H265_PROFILE_12_BIT | H265_PROFILE_422:
+            return "Main 4:2:2 12";
+
+        case H265_PROFILE_8_BIT | H265_PROFILE_444:
+            return "Main 4:4:4";
+        case H265_PROFILE_10_BIT | H265_PROFILE_444:
+            return "Main 4:4:4 10";
+        case H265_PROFILE_12_BIT | H265_PROFILE_444:
+            return "Main 4:4:4 12";
+
+        case H265_PROFILE_8_BIT | H265_PROFILE_420 | H265_PROFILE_INTRA:
+            return "Main Intra";
+        case H265_PROFILE_10_BIT | H265_PROFILE_420 | H265_PROFILE_INTRA:
+            return "Main 10 Intra";
+        case H265_PROFILE_12_BIT | H265_PROFILE_420 | H265_PROFILE_INTRA:
+            return "Main 12 Intra";
+
+        case H265_PROFILE_10_BIT | H265_PROFILE_422 | H265_PROFILE_INTRA:
+            return "Main 4:2:2 10 Intra";
+        case H265_PROFILE_12_BIT | H265_PROFILE_422 | H265_PROFILE_INTRA:
+            return "Main 4:2:2 12 Intra";
+
+        case H265_PROFILE_8_BIT | H265_PROFILE_444 | H265_PROFILE_INTRA:
+            return "Main 4:4:4 Intra";
+        case H265_PROFILE_10_BIT | H265_PROFILE_444 | H265_PROFILE_INTRA:
+            return "Main 4:4:4 10 Intra";
+        case H265_PROFILE_12_BIT | H265_PROFILE_444 | H265_PROFILE_INTRA:
+            return "Main 4:4:4 12 Intra";
+        case H265_PROFILE_16_BIT | H265_PROFILE_444 | H265_PROFILE_INTRA:
+            return "Main 4:4:4 16 Intra";
+
+        case H265_PROFILE_8_BIT | H265_PROFILE_444 | H265_PROFILE_STILL_PICTURE:
+            return "Main 4:4:4 Still Picture";
+        case H265_PROFILE_16_BIT | H265_PROFILE_444 | H265_PROFILE_STILL_PICTURE:
+            return "Main 4:4:4 16 Still Picture";
+        default:
+            break;
+    };
+
+unknown:
+    return "Range ext unknown profile";
+}
+
 static inline const char *h265_get_profile_txt(uint8_t i_profile)
 {
     return i_profile == 0 ? "None" :