video: add support for Y412 format

Y412 is a packed 12 bits 4:4:4:4 format in the order U, Y, V, A, 2 bytes
per component with the color value stored in the 12 most significant
bits

Refer to https://github.com/torvalds/linux/blob/master/include/uapi/drm/drm_fourcc.h#L182
for the LE variant

diff --git a/gst-libs/gst/video/video-converter.c b/gst-libs/gst/video/video-converter.c
index 5b54abd..0f1d62c 100644 (file)
--- a/gst-libs/gst/video/video-converter.c
+++ b/gst-libs/gst/video/video-converter.c
@@ -5932,6 +5932,8 @@ get_scale_format (GstVideoFormat format, gint plane)
     case GST_VIDEO_FORMAT_P012_LE:
     case GST_VIDEO_FORMAT_Y212_BE:
     case GST_VIDEO_FORMAT_Y212_LE:
+    case GST_VIDEO_FORMAT_Y412_BE:
+    case GST_VIDEO_FORMAT_Y412_LE:
       res = format;
       g_assert_not_reached ();
       break;

diff --git a/gst-libs/gst/video/video-format.c b/gst-libs/gst/video/video-format.c
index b2d8e7f..c453293 100644 (file)
--- a/gst-libs/gst/video/video-format.c
+++ b/gst-libs/gst/video/video-format.c
@@ -6162,6 +6162,120 @@ pack_Y212_LE (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
   }
 }
 
+#define PACK_Y412_BE GST_VIDEO_FORMAT_AYUV64, unpack_Y412_BE, 1, pack_Y412_BE
+static void
+unpack_Y412_BE (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
+    gpointer dest, const gpointer data[GST_VIDEO_MAX_PLANES],
+    const gint stride[GST_VIDEO_MAX_PLANES], gint x, gint y, gint width)
+{
+  int i;
+  const guint16 *restrict s = GET_LINE (y);
+  guint16 *restrict d = dest;
+  guint16 A, Y, U, V;
+
+  s += x * 4;
+
+  for (i = 0; i < width; i++) {
+    U = GST_READ_UINT16_BE (s + 4 * i + 0) & 0xfff0;
+    Y = GST_READ_UINT16_BE (s + 4 * i + 1) & 0xfff0;
+    V = GST_READ_UINT16_BE (s + 4 * i + 2) & 0xfff0;
+    A = GST_READ_UINT16_BE (s + 4 * i + 3) & 0xfff0;
+
+    if (!(flags & GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE)) {
+      U |= (U >> 12);
+      Y |= (Y >> 12);
+      V |= (V >> 12);
+      A |= (A >> 12);
+    }
+
+    d[4 * i + 0] = A;
+    d[4 * i + 1] = Y;
+    d[4 * i + 2] = U;
+    d[4 * i + 3] = V;
+  }
+}
+
+static void
+pack_Y412_BE (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
+    const gpointer src, gint sstride, gpointer data[GST_VIDEO_MAX_PLANES],
+    const gint stride[GST_VIDEO_MAX_PLANES], GstVideoChromaSite chroma_site,
+    gint y, gint width)
+{
+  int i;
+  guint16 *restrict d = GET_LINE (y);
+  const guint16 *restrict s = src;
+  guint16 A, Y, U, V;
+
+  for (i = 0; i < width; i++) {
+    A = s[4 * i + 0] & 0xfff0;
+    Y = s[4 * i + 1] & 0xfff0;
+    U = s[4 * i + 2] & 0xfff0;
+    V = s[4 * i + 3] & 0xfff0;
+
+    GST_WRITE_UINT16_BE (d + 4 * i + 0, U);
+    GST_WRITE_UINT16_BE (d + 4 * i + 1, Y);
+    GST_WRITE_UINT16_BE (d + 4 * i + 2, V);
+    GST_WRITE_UINT16_BE (d + 4 * i + 3, A);
+  }
+}
+
+#define PACK_Y412_LE GST_VIDEO_FORMAT_AYUV64, unpack_Y412_LE, 1, pack_Y412_LE
+static void
+unpack_Y412_LE (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
+    gpointer dest, const gpointer data[GST_VIDEO_MAX_PLANES],
+    const gint stride[GST_VIDEO_MAX_PLANES], gint x, gint y, gint width)
+{
+  int i;
+  const guint16 *restrict s = GET_LINE (y);
+  guint16 *restrict d = dest;
+  guint16 A, Y, U, V;
+
+  s += x * 4;
+
+  for (i = 0; i < width; i++) {
+    U = GST_READ_UINT16_LE (s + 4 * i + 0) & 0xfff0;
+    Y = GST_READ_UINT16_LE (s + 4 * i + 1) & 0xfff0;
+    V = GST_READ_UINT16_LE (s + 4 * i + 2) & 0xfff0;
+    A = GST_READ_UINT16_LE (s + 4 * i + 3) & 0xfff0;
+
+    if (!(flags & GST_VIDEO_PACK_FLAG_TRUNCATE_RANGE)) {
+      U |= (U >> 12);
+      Y |= (Y >> 12);
+      V |= (V >> 12);
+      A |= (A >> 12);
+    }
+
+    d[4 * i + 0] = A;
+    d[4 * i + 1] = Y;
+    d[4 * i + 2] = U;
+    d[4 * i + 3] = V;
+  }
+}
+
+static void
+pack_Y412_LE (const GstVideoFormatInfo * info, GstVideoPackFlags flags,
+    const gpointer src, gint sstride, gpointer data[GST_VIDEO_MAX_PLANES],
+    const gint stride[GST_VIDEO_MAX_PLANES], GstVideoChromaSite chroma_site,
+    gint y, gint width)
+{
+  int i;
+  guint16 *restrict d = GET_LINE (y);
+  const guint16 *restrict s = src;
+  guint16 A, Y, U, V;
+
+  for (i = 0; i < width; i++) {
+    A = s[4 * i + 0] & 0xfff0;
+    Y = s[4 * i + 1] & 0xfff0;
+    U = s[4 * i + 2] & 0xfff0;
+    V = s[4 * i + 3] & 0xfff0;
+
+    GST_WRITE_UINT16_LE (d + 4 * i + 0, U);
+    GST_WRITE_UINT16_LE (d + 4 * i + 1, Y);
+    GST_WRITE_UINT16_LE (d + 4 * i + 2, V);
+    GST_WRITE_UINT16_LE (d + 4 * i + 3, A);
+  }
+}
+
 typedef struct
 {
   guint32 fourcc;
@@ -6183,6 +6297,7 @@ typedef struct
 #define DPTH12_12_12     12, 3, { 0, 0, 0, 0 }, { 12, 12, 12, 0 }
 #define DPTH12_12_12_HI  16, 3, { 4, 4, 4, 0 }, { 12, 12, 12, 0 }
 #define DPTH12_12_12_12  12, 4, { 0, 0, 0, 0 }, { 12, 12, 12, 12 }
+#define DPTH12_12_12_12_HI   16, 4, { 4, 4, 4, 4 }, { 12, 12, 12, 12 }
 #define DPTH16           16, 1, { 0, 0, 0, 0 }, { 16, 0, 0, 0 }
 #define DPTH16_16_16     16, 3, { 0, 0, 0, 0 }, { 16, 16, 16, 0 }
 #define DPTH16_16_16_16  16, 4, { 0, 0, 0, 0 }, { 16, 16, 16, 16 }
@@ -6513,6 +6628,10 @@ static const VideoFormat formats[] = {
       PSTR488, PLANE0, OFFS0, SUB422, PACK_Y212_BE),
   MAKE_YUV_LE_FORMAT (Y212_LE, "raw video", 0x00000000, DPTH12_12_12_HI,
       PSTR488, PLANE0, OFFS0, SUB422, PACK_Y212_LE),
+  MAKE_YUV_FORMAT (Y412_BE, "raw video", 0x00000000, DPTH12_12_12_12_HI,
+      PSTR8888, PLANE0, OFFS0, SUB4444, PACK_Y412_BE),
+  MAKE_YUV_LE_FORMAT (Y412_LE, "raw video", 0x00000000, DPTH12_12_12_12_HI,
+      PSTR8888, PLANE0, OFFS0, SUB4444, PACK_Y412_LE),
 };
 
 static GstVideoFormat

diff --git a/gst-libs/gst/video/video-format.h b/gst-libs/gst/video/video-format.h
index 7194ade..4d7319a 100644 (file)
--- a/gst-libs/gst/video/video-format.h
+++ b/gst-libs/gst/video/video-format.h
@@ -127,6 +127,8 @@ G_BEGIN_DECLS
  * @GST_VIDEO_FORMAT_P012_LE: planar 4:2:0 YUV with interleaved UV plane, 12 bits per channel (Since: 1.18)
  * @GST_VIDEO_FORMAT_Y212_BE: packed 4:2:2 YUV, 12 bits per channel (Y-U-Y-V) (Since: 1.18)
  * @GST_VIDEO_FORMAT_Y212_LE: packed 4:2:2 YUV, 12 bits per channel (Y-U-Y-V) (Since: 1.18)
+ * @GST_VIDEO_FORMAT_Y412_BE: packed 4:4:4:4 YUV, 12 bits per channel(U-Y-V-A...) (Since: 1.18)
+ * @GST_VIDEO_FORMAT_Y412_LE: packed 4:4:4:4 YUV, 12 bits per channel(U-Y-V-A...) (Since: 1.18)
  *
  * Enum value describing the most common video formats.
  *
@@ -229,6 +231,8 @@ typedef enum {
   GST_VIDEO_FORMAT_P012_LE,
   GST_VIDEO_FORMAT_Y212_BE,
   GST_VIDEO_FORMAT_Y212_LE,
+  GST_VIDEO_FORMAT_Y412_BE,
+  GST_VIDEO_FORMAT_Y412_LE,
 } GstVideoFormat;
 
 #define GST_VIDEO_MAX_PLANES 4
@@ -583,7 +587,7 @@ gconstpointer  gst_video_format_get_palette          (GstVideoFormat format, gsi
   "A420_10LE, A422_10BE, A422_10LE, A444_10BE, A444_10LE, NV61, P010_10BE, " \
   "P010_10LE, IYU2, VYUY, GBRA, GBRA_10BE, GBRA_10LE, BGR10A2_LE, RGB10A2_LE, GBR_12BE, GBR_12LE, " \
   "GBRA_12BE, GBRA_12LE, P012_BE, P012_LE, I420_12BE, I420_12LE, Y212_BE, Y212_LE, I422_12BE, I422_12LE, " \
-  "Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32, NV16_10LE32, NV12_10LE40, " \
+  "Y412_BE, Y412_LE, Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32, NV16_10LE32, NV12_10LE40, " \
   "Y444_16BE, Y444_16LE, P016_BE, P016_LE }"
 
 /**

diff --git a/gst-libs/gst/video/video-info.c b/gst-libs/gst/video/video-info.c
index 93aa024..73458fc 100644 (file)
--- a/gst-libs/gst/video/video-info.c
+++ b/gst-libs/gst/video/video-info.c
@@ -862,6 +862,8 @@ fill_planes (GstVideoInfo * info, gsize plane_size[GST_VIDEO_MAX_PLANES])
       break;
     case GST_VIDEO_FORMAT_ARGB64:
     case GST_VIDEO_FORMAT_AYUV64:
+    case GST_VIDEO_FORMAT_Y412_BE:
+    case GST_VIDEO_FORMAT_Y412_LE:
       info->stride[0] = width * 8;
       info->offset[0] = 0;
       info->size = info->stride[0] * height;