https://code.videolan.org/videolan/vlc/-/merge_requests/1618.patch
https://bugs.gentoo.org/835787

From 0efdfe8799b0100f41c5b8d6e1b43451001386cb Mon Sep 17 00:00:00 2001
From: Steve Lhomme <robux4@ycbcr.xyz>
Date: Fri, 18 Mar 2022 11:42:49 +0100
Subject: [PATCH 1/2] dav1d: fix compilation with (upcoming) dav1d 1.0

(cherry picked from commit dbf45cea2a8abdfbef897b8a71f3eb782bb1b712) (edited)
edited:
- 3.0 has the 128 pixels padding elsewhere
- 3.0 has an extra parameter for add_integer_with_range()
- 3.0 was setting i_extra_picture_buffers further down in the code
- 3.0 uses 16 threads max

Signed-off-by: Steve Lhomme <robux4@ycbcr.xyz>
--- a/modules/codec/dav1d.c
+++ b/modules/codec/dav1d.c
@@ -63,10 +63,16 @@ vlc_module_begin ()
     set_category(CAT_INPUT)
     set_subcategory(SUBCAT_INPUT_VCODEC)
 
+#if DAV1D_API_VERSION_MAJOR >= 6
+    add_integer_with_range("dav1d-thread-frames", 0, 0, DAV1D_MAX_THREADS,
+                THREAD_FRAMES_TEXT, THREAD_FRAMES_LONGTEXT, false)
+    add_obsolete_string("dav1d-thread-tiles") // unused with dav1d 1.0
+#else
     add_integer_with_range("dav1d-thread-frames", 0, 0, DAV1D_MAX_FRAME_THREADS,
                 THREAD_FRAMES_TEXT, THREAD_FRAMES_LONGTEXT, false)
     add_integer_with_range("dav1d-thread-tiles", 0, 0, DAV1D_MAX_TILE_THREADS,
                 THREAD_TILES_TEXT, THREAD_TILES_LONGTEXT, false)
+#endif
 vlc_module_end ()
 
 /*****************************************************************************
@@ -294,6 +300,11 @@ static int OpenDecoder(vlc_object_t *p_this)
         return VLC_ENOMEM;
 
     dav1d_default_settings(&p_sys->s);
+#if DAV1D_API_VERSION_MAJOR >= 6
+    p_sys->s.n_threads = var_InheritInteger(p_this, "dav1d-thread-frames");
+    if (p_sys->s.n_threads == 0)
+        p_sys->s.n_threads = (i_core_count < 16) ? i_core_count : 16;
+#else
     p_sys->s.n_tile_threads = var_InheritInteger(p_this, "dav1d-thread-tiles");
     if (p_sys->s.n_tile_threads == 0)
         p_sys->s.n_tile_threads =
@@ -303,6 +314,7 @@ static int OpenDecoder(vlc_object_t *p_this)
     p_sys->s.n_frame_threads = var_InheritInteger(p_this, "dav1d-thread-frames");
     if (p_sys->s.n_frame_threads == 0)
         p_sys->s.n_frame_threads = (i_core_count < 16) ? i_core_count : 16;
+#endif
     p_sys->s.allocator.cookie = dec;
     p_sys->s.allocator.alloc_picture_callback = NewPicture;
     p_sys->s.allocator.release_picture_callback = FreePicture;
@@ -313,12 +325,20 @@ static int OpenDecoder(vlc_object_t *p_this)
         return VLC_EGENERIC;
     }
 
+#if DAV1D_API_VERSION_MAJOR >= 6
+    msg_Dbg(p_this, "Using dav1d version %s with %d threads",
+            dav1d_version(), p_sys->s.n_threads);
+
+    dec->i_extra_picture_buffers = (p_sys->s.n_threads - 1);
+#else
     msg_Dbg(p_this, "Using dav1d version %s with %d/%d frame/tile threads",
             dav1d_version(), p_sys->s.n_frame_threads, p_sys->s.n_tile_threads);
 
+    dec->i_extra_picture_buffers = (p_sys->s.n_frame_threads - 1);
+#endif
+
     dec->pf_decode = Decode;
     dec->pf_flush = FlushDecoder;
-    dec->i_extra_picture_buffers = (p_sys->s.n_frame_threads - 1);
 
     dec->fmt_out.video.i_width = dec->fmt_in.video.i_width;
     dec->fmt_out.video.i_height = dec->fmt_in.video.i_height;
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