lavu/pix_fmt: add new pixel format x2rgb10

The format is packed RGB with each channel 10 bits available and
include 2 bits unused.

Signed-off-by: Fei Wang <fei.w.wang@intel.com>

libavutil/pixdesc.c

@@ -252,6 +252,30 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
         },
         .flags = AV_PIX_FMT_FLAG_RGB,
     },
+    [AV_PIX_FMT_X2RGB10LE] = {
+        .name = "x2rgb10le",
+        .nb_components= 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            { 0, 4, 2, 4, 10, 3, 9, 2 },       /* R */
+            { 0, 4, 1, 2, 10, 3, 9, 3 },       /* G */
+            { 0, 4, 0, 0, 10, 3, 9, 4 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB,
+    },
+    [AV_PIX_FMT_X2RGB10BE] = {
+        .name = "x2rgb10be",
+        .nb_components= 3,
+        .log2_chroma_w= 0,
+        .log2_chroma_h= 0,
+        .comp = {
+            { 0, 4, 0, 4, 10, 3, 9, 2 },       /* R */
+            { 0, 4, 1, 2, 10, 3, 9, 3 },       /* G */
+            { 0, 4, 2, 0, 10, 3, 9, 4 },       /* B */
+        },
+        .flags = AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_BE,
+    },
     [AV_PIX_FMT_YUV422P] = {
         .name = "yuv422p",
         .nb_components = 3,

libavutil/pixfmt.h

@@ -358,6 +358,8 @@ enum AVPixelFormat {
     AV_PIX_FMT_Y210BE,    ///< packed YUV 4:2:2 like YUYV422, 20bpp, data in the high bits, big-endian
     AV_PIX_FMT_Y210LE,    ///< packed YUV 4:2:2 like YUYV422, 20bpp, data in the high bits, little-endian
 
+    AV_PIX_FMT_X2RGB10LE, ///< packed RGB 10:10:10, 30bpp, (msb)2X 10R 10G 10B(lsb), little-endian, X=unused/undefined
+    AV_PIX_FMT_X2RGB10BE, ///< packed RGB 10:10:10, 30bpp, (msb)2X 10R 10G 10B(lsb), big-endian, X=unused/undefined
     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
 };
 
@@ -447,6 +449,7 @@ enum AVPixelFormat {
 #define AV_PIX_FMT_P016       AV_PIX_FMT_NE(P016BE,  P016LE)
 
 #define AV_PIX_FMT_Y210       AV_PIX_FMT_NE(Y210BE,  Y210LE)
+#define AV_PIX_FMT_X2RGB10    AV_PIX_FMT_NE(X2RGB10BE, X2RGB10LE)
 
 /**
   * Chromaticity coordinates of the source primaries.

libavutil/version.h

@@ -79,7 +79,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  56
-#define LIBAVUTIL_VERSION_MINOR  54
+#define LIBAVUTIL_VERSION_MINOR  55
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \

tests/ref/fate/filter-pixdesc-x2rgb10le

@@ -0,0 +1 @@
+pixdesc-x2rgb10le    98d697ed4668daf535163d5e08c903bb

tests/ref/fate/sws-pixdesc-query

@@ -57,6 +57,8 @@ isNBPS:
   nv20le
   p010be
   p010le
+  x2rgb10be
+  x2rgb10le
   xyz12be
   xyz12le
   y210be
@@ -141,6 +143,7 @@ isBE:
   rgb555be
   rgb565be
   rgba64be
+  x2rgb10be
   xyz12be
   y210be
   ya16be
@@ -436,6 +439,8 @@ isRGB:
   rgb8
   rgba64be
   rgba64le
+  x2rgb10be
+  x2rgb10le
 
 Gray:
   gray
@@ -582,6 +587,8 @@ AnyRGB:
   rgb8
   rgba64be
   rgba64le
+  x2rgb10be
+  x2rgb10le
 
 ALPHA:
   ayuv64be
@@ -689,6 +696,8 @@ Packed:
   rgba64le
   uyvy422
   uyyvyy411
+  x2rgb10be
+  x2rgb10le
   xyz12be
   xyz12le
   y210be
@@ -853,6 +862,8 @@ PackedRGB:
   rgb8
   rgba64be
   rgba64le
+  x2rgb10be
+  x2rgb10le
 
 PlanarRGB:
   gbrap