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-rw-r--r--libavcodec/vc1.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index cca345df38..d9d7d515ae 100644
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -306,11 +306,16 @@ int vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitConte
{
v->zz_8x4 = wmv2_scantableA;
v->zz_4x8 = wmv2_scantableB;
- v->res_sm = get_bits(gb, 2); //reserved
- if (v->res_sm)
+ v->res_y411 = get_bits1(gb);
+ v->res_sprite = get_bits1(gb);
+ if (v->res_y411)
{
av_log(avctx, AV_LOG_ERROR,
- "Reserved RES_SM=%i is forbidden\n", v->res_sm);
+ "Old interlaced mode is not supported\n");
+ return -1;
+ }
+ if (v->res_sprite) {
+ av_log(avctx, AV_LOG_ERROR, "WMVP is not supported\n");
return -1;
}
}