hwcontext_vaapi: add a quirk for the missing MemoryType attribute

The Intel binary iHD driver does not support the
VASurfaceAttribMemoryType, so surface allocation will fail when using
it.

(cherry picked from commit 2124711b95)

doc/APIchanges

@@ -15,6 +15,9 @@ libavutil:     2015-08-28
 
 API changes, most recent first:
 
+2016-xx-xx - xxxxxxx - lavu 55.39.100 - hwcontext_vaapi.h
+  Add AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE.
+
 2016-xx-xx - xxxxxxx - lavu 55.38.100 - hwcontext_vaapi.h
   Add driver quirks field to VAAPI-specific hwdevice and enum with
   members AV_VAAPI_DRIVER_QUIRK_* to represent its values.

libavutil/hwcontext_vaapi.c

@@ -275,6 +275,11 @@ static const struct {
         "i965",
         AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS,
     },
+    {
+        "Intel iHD",
+        "ubit",
+        AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE,
+    },
 };
 
 static int vaapi_device_init(AVHWDeviceContext *hwdev)
@@ -449,7 +454,8 @@ static int vaapi_frames_init(AVHWFramesContext *hwfc)
     }
 
     if (!hwfc->pool) {
-        int need_memory_type = 1, need_pixel_format = 1;
+        int need_memory_type = !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE);
+        int need_pixel_format = 1;
         for (i = 0; i < avfc->nb_attributes; i++) {
             if (ctx->attributes[i].type == VASurfaceAttribMemoryType)
                 need_memory_type  = 0;

libavutil/hwcontext_vaapi.h

@@ -45,6 +45,12 @@ enum {
      * separately afterwards.
      */
     AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS = (1 << 1),
+
+    /**
+     * The driver does not support the VASurfaceAttribMemoryType attribute,
+     * so the surface allocation code will not try to use it.
+     */
+    AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE = (1 << 2),
 };
 
 /**

libavutil/version.h

@@ -79,7 +79,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  55
-#define LIBAVUTIL_VERSION_MINOR  38
+#define LIBAVUTIL_VERSION_MINOR  39
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \