static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
const Mv *mv, int y0, int height)
{
- int y = (mv->y >> 2) + y0 + height + 9;
+ int y = FFMAX(0, (mv->y >> 2) + y0 + height + 9);
if (s->threads_type == FF_THREAD_FRAME )
ff_thread_await_progress(&ref->tf, y, 0);