lavc: introduce VideoDSPContext

Move some functions from dsputil. The idea is that videodsp contains
functions that are useful for a large and varied set of video decoders.
Currently, it contains emulated_edge_mc() and prefetch().

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/libavcodec/vp56.h b/libavcodec/vp56.h
index 9be2eabdf9..431d1a9465 100644
--- a/libavcodec/vp56.h
+++ b/libavcodec/vp56.h
@@ -30,6 +30,7 @@
 #include "dsputil.h"
 #include "get_bits.h"
 #include "bytestream.h"
+#include "videodsp.h"
 #include "vp3dsp.h"
 #include "vp56dsp.h"
 
@@ -94,6 +95,7 @@ typedef struct VP56Model {
 struct vp56_context {
     AVCodecContext *avctx;
     DSPContext dsp;
+    VideoDSPContext vdsp;
     VP3DSPContext vp3dsp;
     VP56DSPContext vp56dsp;
     ScanTable scantable;