Merge commit '1839fafa951308237c4672ffd9a94f927b26eac7'

* commit '1839fafa951308237c4672ffd9a94f927b26eac7':
  avconv: Support VDA hwaccel

Conflicts:
	Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg_opt.c

@@ -69,6 +69,9 @@ const HWAccel hwaccels[] = {
 #endif
 #if HAVE_DXVA2_LIB
     { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
+#endif
+#if CONFIG_VDA
+    { "vda",   vda_init,   HWACCEL_VDA,   AV_PIX_FMT_VDA },
 #endif
     { 0 },
 };