shithub: dav1d

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Use adapted CDF for invisible keyframes if refresh_context=1

Fixes #213.

--- a/src/obu.c

+++ b/src/obu.c

@@ -1388,7 +1388,7 @@

             if (c->refs[c->frame_hdr->existing_frame_idx].p.p.frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY) {

                 const int r = c->frame_hdr->existing_frame_idx;

                 for (int i = 0; i < 8; i++) {

-                    if (i == c->frame_hdr->existing_frame_idx) continue;

+                    if (i == r) continue;

                     if (c->refs[i].p.p.data[0])

                         dav1d_thread_picture_unref(&c->refs[i].p);

@@ -1395,7 +1395,7 @@

                     dav1d_thread_picture_ref(&c->refs[i].p, &c->refs[r].p);

                     if (c->cdf[i].cdf) dav1d_cdf_thread_unref(&c->cdf[i]);

-                    dav1d_init_states(&c->cdf[i], c->refs[r].p.p.frame_hdr->quant.yac);

+                    dav1d_cdf_thread_ref(&c->cdf[i], &c->cdf[r]);

                     dav1d_ref_dec(&c->refs[i].segmap);

                     c->refs[i].segmap = c->refs[r].segmap;