Fix rv20 encoding so the binary decoder can decode it.

Originally committed as revision 25203 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mpegvideo_enc.c

@@ -618,7 +618,7 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
         s->h263_aic=1;
         s->h263_plus=1;
         s->loop_filter=1;
-        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
+        s->unrestricted_mv= 0;
         break;
     case CODEC_ID_MPEG4:
         s->out_format = FMT_H263;

libavcodec/rv20enc.c

@@ -41,7 +41,7 @@ void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
     put_bits(&s->pb, 1, s->no_rounding);
 
     assert(s->f_code == 1);
-    assert(s->unrestricted_mv == 1);
+    assert(s->unrestricted_mv == 0);
     assert(s->alt_inter_vlc == 0);
     assert(s->umvplus == 0);
     assert(s->modified_quant==1);

tests/ref/vsynth1/rv20

-49f656b3a84bd7173ca219fae310750c *./tests/data/vsynth1/rv20.rm
-627450 ./tests/data/vsynth1/rv20.rm
-a94d2babdc506b95951977cb55642981 *./tests/data/rv20.vsynth1.out.yuv
-stddev:    8.24 PSNR: 29.81 MAXDIFF:  108 bytes:  7603200/  7603200
+81868601e602eee5b6d80f5ece4aaa98 *./tests/data/vsynth1/rv20.rm
+646016 ./tests/data/vsynth1/rv20.rm
+b45fdb0201b06f7649f44050e262c54c *./tests/data/rv20.vsynth1.out.yuv
+stddev:    8.26 PSNR: 29.79 MAXDIFF:  103 bytes:  7603200/  7603200

tests/ref/vsynth2/rv20

-d864475aa16d84dd99de13e65003672a *./tests/data/vsynth2/rv20.rm
-132734 ./tests/data/vsynth2/rv20.rm
-c66afdcc0daac2f1b4167b9811968877 *./tests/data/rv20.vsynth2.out.yuv
-stddev:    5.42 PSNR: 33.45 MAXDIFF:   81 bytes:  7603200/  7603200
+96acb098850b9bf309f89e48b08fe96f *./tests/data/vsynth2/rv20.rm
+153302 ./tests/data/vsynth2/rv20.rm
+46f314e70d9bac2e7d82cfc230534977 *./tests/data/rv20.vsynth2.out.yuv
+stddev:    5.48 PSNR: 33.35 MAXDIFF:   81 bytes:  7603200/  7603200