shithub: dav1d

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decode: check once per tile sb row for symbol decoder overreads

--- a/src/decode.c

+++ b/src/decode.c

@@ -2374,6 +2374,9 @@

         return 0;

     }

+    // error out on symbol decoder overread

+    if (ts->msac.cnt < -15) return 1;

+

     if (c->n_fc > 1 && f->frame_hdr.use_ref_frame_mvs) {

         for (int n = 0; n < 7; n++)

             if (dav1d_thread_picture_wait(&f->refp[n], 4 * (t->by + sb_step),