In case when any quantizer may occur, HALFPQ should be zero

Originally committed as revision 10499 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago · f7d2a43707
parent efd7428666
commit f7d2a43707
1 changed files with 2 additions and 0 deletions
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@ -342,6 +342,8 @@ static int vop_dquant_decoding(VC1Context *v)
                break;
            case DQPROFILE_ALL_MBS:
                v->dqbilevel = get_bits1(gb);
+                if(!v->dqbilevel)
+                    v->halfpq = 0;
            default: break; //Forbidden ?
            }
            if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS)