--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,5 @@
+  * Add dav1d 1.0.0 support.
+
 xine-lib (1.2.12) 2022-03-09
   * Add string tree library (generic info parser).
   * Add OpenSL ES audio output plugin.
--- a/src/video_dec/dav1d.c
+++ b/src/video_dec/dav1d.c
@@ -544,11 +544,17 @@
 
   /* multithreading */
   ncpu = xine_cpu_count();
+#if DAV1D_API_VERSION_MAJOR > 5
+  settings.n_threads = ncpu + 1;
+  xprintf(stream->xine, XINE_VERBOSITY_DEBUG, LOG_MODULE ": "
+            "Using %d threads\n", settings.n_threads);
+#else
   settings.n_frame_threads = (ncpu > 8) ? 4 : (ncpu < 2) ? 1 : ncpu/2;
   settings.n_tile_threads = MAX(1, ncpu - settings.n_frame_threads + 1);
   xprintf(stream->xine, XINE_VERBOSITY_DEBUG, LOG_MODULE ": "
             "Using %d frame threads, %d tile threads\n",
             settings.n_frame_threads, settings.n_tile_threads);
+#endif
 
   /* dri frame allocator */
   settings.allocator.cookie = this;