refine vaCreateSurfaceFromMrstV4L2Buf to vaCreateSurfaceFromV4L2Buf to make it more generic

Signed-off-by: Austin Yuan <shengquan.yuan@intel.com>

src/va.c

@@ -34,6 +34,8 @@
 #include <dlfcn.h>
 #include <unistd.h>
 
+#include <linux/videodev2.h>
+
 #define VA_STR_VERSION		VA_BUILD_DATE VA_BUILD_GIT
 
 #define VA_MAJOR_VERSION	0
@@ -1242,18 +1244,11 @@ VAStatus vaCreateSurfaceFromCIFrame (
 }
 
 
-VAStatus vaCreateSurfaceFromMrstV4L2Buf(
+VAStatus vaCreateSurfaceFromV4L2Buf(
     VADisplay dpy,
-    unsigned int width,
-    unsigned int height,
-    unsigned int size,
-    unsigned int fourcc,
-    unsigned int luma_stride,
-    unsigned int chroma_u_stride,
-    unsigned int chroma_v_stride,
-    unsigned int luma_offset,
-    unsigned int chroma_u_offset,
-    unsigned int chroma_v_offset,
+    int v4l2_fd,         /* file descriptor of V4L2 device */
+    struct v4l2_format *v4l2_fmt,       /* format of V4L2 */
+    struct v4l2_buffer *v4l2_buf,       /* V4L2 buffer */
     VASurfaceID *surface	       /* out */
 )
 {
@@ -1261,10 +1256,10 @@ VAStatus vaCreateSurfaceFromMrstV4L2Buf(
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
-  TRACE(vtable.vaCreateSurfaceFromMrstV4L2Buf);
+  TRACE(vtable.vaCreateSurfaceFromV4L2Buf);
 
-  if (ctx->vtable.vaCreateSurfaceFromMrstV4L2Buf) 
-      return ctx->vtable.vaCreateSurfaceFromMrstV4L2Buf( ctx, width, height, size, fourcc, luma_stride, chroma_u_stride, chroma_v_stride, luma_offset, chroma_u_offset, chroma_v_offset, surface );
+  if (ctx->vtable.vaCreateSurfaceFromV4L2Buf) 
+      return ctx->vtable.vaCreateSurfaceFromV4L2Buf( ctx, v4l2_fd, v4l2_fmt, v4l2_buf, surface );
   else
       return VA_STATUS_ERROR_UNKNOWN;
 }

src/va_backend.h

@@ -38,6 +38,7 @@
 #endif
 
 #include <stdlib.h>
+#include <linux/videodev2.h>
 
 
 typedef struct VADriverContext *VADriverContextP;
@@ -382,18 +383,11 @@ struct VADriverVTable
 	);
     
     
-        VAStatus (*vaCreateSurfaceFromMrstV4L2Buf) (
+        VAStatus (*vaCreateSurfaceFromV4L2Buf) (
 		VADriverContextP ctx,
-                unsigned int width,
-                unsigned int height,
-                unsigned int size,
-                unsigned int fourcc,
-                unsigned int luma_stride,
-                unsigned int chroma_u_stride,
-                unsigned int chroma_v_stride,
-                unsigned int luma_offset,
-                unsigned int chroma_u_offset,
-                unsigned int chroma_v_offset,
+                int v4l2_fd,         /* file descriptor of V4L2 device */
+                struct v4l2_format *v4l2_fmt,       /* format of V4L2 */
+                struct v4l2_buffer *v4l2_buf,       /* V4L2 buffer */
                 VASurfaceID *surface	           /* out */
         );