avutil/pixfmt: add VYU444 pixel format

This maps to the 444YpCbCr8 pixel format as defined by Apple, which is ordered
Cr Y' Cb.

Signed-off-by: James Almer <jamrial@gmail.com>

libavutil/pixdesc.c

@@ -2119,6 +2119,17 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
         .name = "cuda",
         .flags = AV_PIX_FMT_FLAG_HWACCEL,
     },
+    [AV_PIX_FMT_VYU444] = {
+        .name = "vyu444",
+        .nb_components = 3,
+        .log2_chroma_w = 0,
+        .log2_chroma_h = 0,
+        .comp = {
+            { 0, 3, 1, 0, 8 },        /* Y */
+            { 0, 3, 2, 0, 8 },        /* U */
+            { 0, 3, 0, 0, 8 },        /* V */
+        },
+    },
     [AV_PIX_FMT_UYVA] = {
         .name = "uyva",
         .nb_components = 4,

libavutil/pixfmt.h

@@ -443,6 +443,8 @@ enum AVPixelFormat {
 
     AV_PIX_FMT_UYVA,        ///< packed UYVA 4:4:4:4, 32bpp (1 Cr & Cb sample per 1x1 Y & A samples), UYVAUYVA...
 
+    AV_PIX_FMT_VYU444,      ///< packed VYU 4:4:4, 24bpp (1 Cr & Cb sample per 1x1 Y), VYUVYU...
+
     AV_PIX_FMT_NB         ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
 };
 

libavutil/tests/pixfmt_best.c

@@ -121,6 +121,7 @@ int main(void)
     TEST(AV_PIX_FMT_NV24,      AV_PIX_FMT_YUV444P);
     TEST(AV_PIX_FMT_YUYV422,   AV_PIX_FMT_YUV422P);
     TEST(AV_PIX_FMT_UYVY422,   AV_PIX_FMT_YUV422P);
+    TEST(AV_PIX_FMT_VYU444,    AV_PIX_FMT_YUV444P);
     TEST(AV_PIX_FMT_BGR565,    AV_PIX_FMT_RGB565);
     TEST(AV_PIX_FMT_BGR24,     AV_PIX_FMT_RGB24);
     TEST(AV_PIX_FMT_GBRP,      AV_PIX_FMT_RGB24);

tests/ref/fate/imgutils

@@ -271,6 +271,7 @@ gbrap14be       planes: 4, linesizes: 128 128 128 128, plane_sizes:  6144  6144
 gbrap14le       planes: 4, linesizes: 128 128 128 128, plane_sizes:  6144  6144  6144  6144, plane_offsets:  6144  6144  6144, total_size: 24576
 ayuv            planes: 1, linesizes: 256   0   0   0, plane_sizes: 12288     0     0     0, plane_offsets:     0     0     0, total_size: 12288
 uyva            planes: 1, linesizes: 256   0   0   0, plane_sizes: 12288     0     0     0, plane_offsets:     0     0     0, total_size: 12288
+vyu444          planes: 1, linesizes: 192   0   0   0, plane_sizes:  9216     0     0     0, plane_offsets:     0     0     0, total_size: 9216
 
 image_fill_black tests
 yuv420p         total_size:   4608,  black_unknown_crc: 0xd00f6cc6,  black_tv_crc: 0xd00f6cc6,  black_pc_crc: 0x234969af
@@ -489,3 +490,4 @@ gbrap14be       total_size:  24576,  black_unknown_crc: 0x4ec0d987,  black_tv_cr
 gbrap14le       total_size:  24576,  black_unknown_crc: 0x13bde353,  black_tv_crc: 0x13bde353,  black_pc_crc: 0x13bde353
 ayuv            total_size:  12288,  black_unknown_crc: 0xcc44368b,  black_tv_crc: 0xcc44368b,  black_pc_crc: 0x1e04c638
 uyva            total_size:  12288,  black_unknown_crc: 0xdd657297,  black_tv_crc: 0xdd657297,  black_pc_crc: 0x0f258224
+vyu444          total_size:   9216,  black_unknown_crc: 0x575e6fb1,  black_tv_crc: 0x575e6fb1,  black_pc_crc: 0x16564599

tests/ref/fate/pixfmt_best

@@ -1 +1 @@
-108 tests passed, 0 tests failed.
+109 tests passed, 0 tests failed.

tests/ref/fate/sws-pixdesc-query

@@ -251,6 +251,7 @@ isYUV:
   uyyvyy411
   vuya
   vuyx
+  vyu444
   xv30be
   xv30le
   xv36be
@@ -828,6 +829,7 @@ Packed:
   uyyvyy411
   vuya
   vuyx
+  vyu444
   x2bgr10be
   x2bgr10le
   x2rgb10be
@@ -1090,5 +1092,6 @@ SwappedChroma:
   nv42
   vuya
   vuyx
+  vyu444
   yvyu422