diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 2dbebd96a00e37f2cb80447aaf18f769cc2674cf..83f7ddf618ef5a7a8b462d50d284e59bae7c5ece 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -3938,7 +3938,7 @@ static int h263_decode_block(MpegEncContext * s, DCTELEM * block,
         }
     } else if (s->mb_intra) {
         /* DC coef */
-        if(s->h263_rv10){
+        if(s->codec_id == CODEC_ID_RV10){
           if (s->rv10_version == 3 && s->pict_type == I_TYPE) {
             int component, diff;
             component = (n <= 3 ? 0 : n - 4 + 1);
@@ -3999,7 +3999,7 @@ retry:
                 run = get_bits(&s->gb, 6);
                 level = (int8_t)get_bits(&s->gb, 8);
                 if(level == -128){
-                    if (s->h263_rv10) {
+                    if (s->codec_id == CODEC_ID_RV10) {
                         /* XXX: should patch encoder too */
                         level = get_sbits(&s->gb, 12);
                     }else{
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 1fe94e729e82c0fcb56ec2325676b3a67bf45b0f..346c3c3c0bbc54e70003c91a916c9f7369cc8fd5 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -796,7 +796,6 @@ int MPV_encode_init(AVCodecContext *avctx)
         break;
     case CODEC_ID_RV10:
         s->out_format = FMT_H263;
-        s->h263_rv10 = 1;
         avctx->delay=0;
         s->low_delay=1;
         break;
@@ -3782,7 +3781,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
             msmpeg4_encode_picture_header(s, picture_number);
         else if (s->h263_pred)
             mpeg4_encode_picture_header(s, picture_number);
-        else if (s->h263_rv10) 
+        else if (s->codec_id == CODEC_ID_RV10) 
             rv10_encode_picture_header(s, picture_number);
         else if (s->codec_id == CODEC_ID_FLV1)
             ff_flv_encode_picture_header(s, picture_number);
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index e80e3b73a5a6fa905ceaf992e756331beaf3f415..c269e2264d741347cab973e385d5743eb8e90dca 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -266,7 +266,6 @@ typedef struct MpegEncContext {
 
 /* the following codec id fields are deprecated in favor of codec_id */
     int h263_plus;    ///< h263 plus headers 
-    int h263_rv10;    ///< use RV10 variation for H263 
     int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
     int h263_intel;   ///< use I263 intel h263 header 
     int h263_flv;     ///< use flv h263 header 
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index ec27dc3fe057ee1b33b4ff5285cc6016cf9705f6..ad0bb602f869ecd28e351ed90e4cb2f49cab419a 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -402,17 +402,14 @@ static int rv10_decode_init(AVCodecContext *avctx)
     case 0x10000000:
         s->rv10_version= 0;
         s->h263_long_vectors=0;
-        s->h263_rv10 = 1;
         break;
     case 0x10003000:
         s->rv10_version= 3;
         s->h263_long_vectors=1;
-        s->h263_rv10 = 1;
         break;
     case 0x10003001:
         s->rv10_version= 3;
         s->h263_long_vectors=0;
-        s->h263_rv10 = 1;
         break;
     case 0x20001000:
     case 0x20100001: //ok