surface: add new chroma formats.

Add new chroma formats available with VA-API >= 0.34.0. In particular,
this includes "RGB" chroma formats, and more YUV subsampled formats.
Also add a new from_GstVaapiChromaType() helper function to convert
libgstvaapi chroma type to VA chroma format.

gst-libs/gst/vaapi/gstvaapisurface.c

@@ -102,27 +102,16 @@ gst_vaapi_surface_create(GstVaapiSurface *surface,
     GstVaapiDisplay * const display = GST_VAAPI_OBJECT_DISPLAY(surface);
     VASurfaceID surface_id;
     VAStatus status;
-    guint format;
+    guint va_chroma_format;
 
-    switch (chroma_type) {
+    va_chroma_format = from_GstVaapiChromaType(chroma_type);
-    case GST_VAAPI_CHROMA_TYPE_YUV420:
+    if (!va_chroma_format)
-        format = VA_RT_FORMAT_YUV420;
+        goto error_unsupported_chroma_type;
-        break;
-    case GST_VAAPI_CHROMA_TYPE_YUV422:
-        format = VA_RT_FORMAT_YUV422;
-        break;
-    case GST_VAAPI_CHROMA_TYPE_YUV444:
-        format = VA_RT_FORMAT_YUV444;
-        break;
-    default:
-        GST_DEBUG("unsupported chroma-type %u\n", chroma_type);
-        return FALSE;
-    }
 
     GST_VAAPI_DISPLAY_LOCK(display);
     status = vaCreateSurfaces(
         GST_VAAPI_DISPLAY_VADISPLAY(display),
-        width, height, format,
+        width, height, va_chroma_format,
         1, &surface_id
     );
     GST_VAAPI_DISPLAY_UNLOCK(display);
@@ -136,6 +125,11 @@ gst_vaapi_surface_create(GstVaapiSurface *surface,
     GST_DEBUG("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS(surface_id));
     GST_VAAPI_OBJECT_ID(surface) = surface_id;
     return TRUE;
+
+    /* ERRORS */
+error_unsupported_chroma_type:
+    GST_ERROR("unsupported chroma-type %u", chroma_type);
+    return FALSE;
 }
 
 #define gst_vaapi_surface_finalize gst_vaapi_surface_destroy

gst-libs/gst/vaapi/gstvaapisurface.h

@@ -56,13 +56,26 @@ G_BEGIN_DECLS
  * @GST_VAAPI_CHROMA_TYPE_YUV420: 4:2:0 chroma format
  * @GST_VAAPI_CHROMA_TYPE_YUV422: 4:2:2 chroma format
  * @GST_VAAPI_CHROMA_TYPE_YUV444: 4:4:4 chroma format
+ * @GST_VAAPI_CHROMA_TYPE_YUV420: YUV 4:2:0 chroma format
+ * @GST_VAAPI_CHROMA_TYPE_YUV422: YUV 4:2:2 chroma format
+ * @GST_VAAPI_CHROMA_TYPE_YUV444: YUV 4:4:4 chroma format
+ * @GST_VAAPI_CHROMA_TYPE_YUV411: YUV 4:1:1 chroma format
+ * @GST_VAAPI_CHROMA_TYPE_YUV410: YUV 4:1:0 chroma format
+ * @GST_VAAPI_CHROMA_TYPE_YUV400: YUV 4:0:0 chroma format (grayscale)
+ * @GST_VAAPI_CHROMA_TYPE_RGB32: 32-bit RGB chroma format
+ * @GST_VAAPI_CHROMA_TYPE_RGB16: 16-bit RGB chroma format
  *
  * The set of all chroma types for #GstVaapiSurface.
  */
 typedef enum {
     GST_VAAPI_CHROMA_TYPE_YUV420 = 1,
     GST_VAAPI_CHROMA_TYPE_YUV422,
-    GST_VAAPI_CHROMA_TYPE_YUV444
+    GST_VAAPI_CHROMA_TYPE_YUV444,
+    GST_VAAPI_CHROMA_TYPE_YUV411,
+    GST_VAAPI_CHROMA_TYPE_YUV410,
+    GST_VAAPI_CHROMA_TYPE_YUV400,
+    GST_VAAPI_CHROMA_TYPE_RGB32,
+    GST_VAAPI_CHROMA_TYPE_RGB16
 } GstVaapiChromaType;
 
 /**

gst-libs/gst/vaapi/gstvaapiutils.c

@@ -203,6 +203,49 @@ string_of_VADisplayAttributeType(VADisplayAttribType attribute_type)
     return "<unknown>";
 }
 
+/**
+ * from_GstVaapiChromaType:
+ * @chroma_type: the #GstVaapiChromaType
+ *
+ * Converts #GstVaapiChromaType to a chroma format suitable for
+ * vaCreateSurfaces().
+ */
+guint
+from_GstVaapiChromaType(guint chroma_type)
+{
+    guint format;
+
+    switch (chroma_type) {
+    case GST_VAAPI_CHROMA_TYPE_YUV420:
+        format = VA_RT_FORMAT_YUV420;
+        break;
+    case GST_VAAPI_CHROMA_TYPE_YUV422:
+        format = VA_RT_FORMAT_YUV422;
+        break;
+    case GST_VAAPI_CHROMA_TYPE_YUV444:
+        format = VA_RT_FORMAT_YUV444;
+        break;
+#if VA_CHECK_VERSION(0,34,0)
+    case GST_VAAPI_CHROMA_TYPE_YUV411:
+        format = VA_RT_FORMAT_YUV411;
+        break;
+    case GST_VAAPI_CHROMA_TYPE_YUV400:
+        format = VA_RT_FORMAT_YUV400;
+        break;
+    case GST_VAAPI_CHROMA_TYPE_RGB32:
+        format = VA_RT_FORMAT_RGB32;
+        break;
+    case GST_VAAPI_CHROMA_TYPE_RGB16:
+        format = VA_RT_FORMAT_RGB16;
+        break;
+#endif
+    default:
+        format = 0;
+        break;
+    }
+    return format;
+}
+
 /**
  * from_GstVaapiSubpictureFlags:
  * @flags: the #GstVaapiSubpictureFlags

gst-libs/gst/vaapi/gstvaapiutils.h

@@ -73,6 +73,10 @@ G_GNUC_INTERNAL
 const char *
 string_of_VADisplayAttributeType(VADisplayAttribType attribute_type);
 
+G_GNUC_INTERNAL
+guint
+from_GstVaapiChromaType(guint chroma_type);
+
 G_GNUC_INTERNAL
 guint
 from_GstVaapiSubpictureFlags(guint flags);