ffv1: fix reading global header with CRC

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · 21fdf1ccf0
parent 57778f61d0
commit 21fdf1ccf0
1 changed files with 3 additions and 1 deletions
--- a/libavcodec/ffv1.c
+++ b/libavcodec/ffv1.c
@ -1697,8 +1697,10 @@ static int read_extra_header(FFV1Context *f){
    ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);

    f->version= get_symbol(c, state, 0);
-    if(f->version > 2)
+    if(f->version > 2) {
+        c->bytestream_end -= 4;
        f->minor_version= get_symbol(c, state, 0);
+    }
    f->ac= f->avctx->coder_type= get_symbol(c, state, 0);
    if(f->ac>1){
        for(i=1; i<256; i++){