No idea why.
Patch submitted upstream:
https://patchwork.ffmpeg.org/project/ffmpeg/patch/
20200503090023.29418-1-rosenp@gmail.com/
Signed-off-by: Rosen Penev <rosenp@gmail.com>
PKG_NAME:=ffmpeg
PKG_VERSION:=4.2.2
-PKG_RELEASE:=3
+PKG_RELEASE:=4
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=https://ffmpeg.org/releases/
--- /dev/null
+--- a/libavcodec/wmv2dsp.c
++++ b/libavcodec/wmv2dsp.c
+@@ -263,6 +263,6 @@ av_cold void ff_wmv2dsp_init(WMV2DSPContext *c)
+ c->put_mspel_pixels_tab[6] = put_mspel8_mc22_c;
+ c->put_mspel_pixels_tab[7] = put_mspel8_mc32_c;
+
+- if (ARCH_MIPS)
++ if (ARCH_MIPS64)
+ ff_wmv2dsp_init_mips(c);
+ }