avcodec/h263dec: Move initializing qpel DSP context to mpeg4videodec.c

The MPEG-4 decoder is the only decoder based upon H.263 that
supports quarterpel motion vectors.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/h263dec.c

@@ -51,7 +51,6 @@
 #include "mpegvideo.h"
 #include "mpegvideodec.h"
 #include "msmpeg4dec.h"
-#include "qpeldsp.h"
 #include "thread.h"
 #include "wmv2dec.h"
 
@@ -140,7 +139,6 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
     }
 
     ff_h263dsp_init(&s->h263dsp);
-    ff_qpeldsp_init(&s->qdsp);
     ff_h263_decode_init_vlc();
 
     return 0;

libavcodec/mpeg4videodec.c

@@ -43,6 +43,7 @@
 #include "h263data.h"
 #include "h263dec.h"
 #include "profiles.h"
+#include "qpeldsp.h"
 #include "threadframe.h"
 #include "xvididct.h"
 #include "unary.h"
@@ -3824,6 +3825,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
 
     avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
 
+    ff_qpeldsp_init(&s->qdsp);
     ff_mpeg4videodsp_init(&ctx->mdsp);
 
     ff_thread_once(&init_static_once, mpeg4_init_static);