diff --git a/SMP/config.asm b/SMP/config.asm
index 7bad0902390798eca8b7ab9d5fc3cab50a9d03a5..cbd0f8c6c8380da2daf13dc60294ff462b7c8824 100644
--- a/SMP/config.asm
+++ b/SMP/config.asm
@@ -1724,6 +1724,7 @@
 %define CONFIG_FIREQUALIZER_FILTER 1
 %define CONFIG_FLANGER_FILTER 1
 %define CONFIG_HDCD_FILTER 1
+%define CONFIG_HEADPHONE_FILTER 1
 %define CONFIG_HIGHPASS_FILTER 1
 %define CONFIG_JOIN_FILTER 1
 %define CONFIG_LADSPA_FILTER 0
diff --git a/SMP/config.h b/SMP/config.h
index e6176e6a282a889770cb872572f7dca863751de9..1c0644d010ec466846040cc7e5946f58244c6073 100644
--- a/SMP/config.h
+++ b/SMP/config.h
@@ -1781,6 +1781,7 @@
 #define CONFIG_FIREQUALIZER_FILTER 1
 #define CONFIG_FLANGER_FILTER 1
 #define CONFIG_HDCD_FILTER 1
+#define CONFIG_HEADPHONE_FILTER 1
 #define CONFIG_HIGHPASS_FILTER 1
 #define CONFIG_JOIN_FILTER 1
 #define CONFIG_LADSPA_FILTER 0
diff --git a/SMP/ffmpeg.vcxproj b/SMP/ffmpeg.vcxproj
index 86f96526029ed622f1910f6bfc983af7c617d2e7..91f531a724e3a1cbf8eefaa0130dd818748cadce 100644
--- a/SMP/ffmpeg.vcxproj
+++ b/SMP/ffmpeg.vcxproj
@@ -38,6 +38,7 @@
     <ClCompile Include="..\cmdutils.c" />
     <ClCompile Include="..\ffmpeg_opt.c" />
     <ClCompile Include="..\ffmpeg_filter.c" />
+    <ClCompile Include="..\ffmpeg_hw.c" />
     <ClCompile Include="..\ffmpeg_qsv.c" />
     <ClCompile Include="..\ffmpeg_cuvid.c" />
     <ClCompile Include="..\ffmpeg_dxva2.c" />
diff --git a/SMP/ffmpeg.vcxproj.filters b/SMP/ffmpeg.vcxproj.filters
index 6a384bc331892ccd9f7aad59405af6e8af9a9292..9e3d7a94db2c7a15d6699c8c9957de6beab69dd2 100644
--- a/SMP/ffmpeg.vcxproj.filters
+++ b/SMP/ffmpeg.vcxproj.filters
@@ -27,6 +27,9 @@
     <ClCompile Include="..\ffmpeg_filter.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\ffmpeg_hw.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\ffmpeg_qsv.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/SMP/libavfilter.vcxproj b/SMP/libavfilter.vcxproj
index b67e247e140288d9c5cafd29cb774ebc40ccec22..5cd0f11e73839ab960cacdf28fd82d5efce2d209 100644
--- a/SMP/libavfilter.vcxproj
+++ b/SMP/libavfilter.vcxproj
@@ -168,6 +168,7 @@
     <ClCompile Include="..\libavfilter\af_firequalizer.c" />
     <ClCompile Include="..\libavfilter\af_flanger.c" />
     <ClCompile Include="..\libavfilter\af_hdcd.c" />
+    <ClCompile Include="..\libavfilter\af_headphone.c" />
     <ClCompile Include="..\libavfilter\af_join.c" />
     <ClCompile Include="..\libavfilter\af_loudnorm.c" />
     <ClCompile Include="..\libavfilter\ebur128.c" />
diff --git a/SMP/libavfilter.vcxproj.filters b/SMP/libavfilter.vcxproj.filters
index 17f35ce1f9e87d4c4f4edb8737eb6ccde4761f51..8053212335a2ea76ee3d5de719f0485bfa5146b2 100644
--- a/SMP/libavfilter.vcxproj.filters
+++ b/SMP/libavfilter.vcxproj.filters
@@ -327,6 +327,9 @@
     <ClCompile Include="..\libavfilter\af_hdcd.c">
       <Filter>Source Files\libavfilter</Filter>
     </ClCompile>
+    <ClCompile Include="..\libavfilter\af_headphone.c">
+      <Filter>Source Files\libavfilter</Filter>
+    </ClCompile>
     <ClCompile Include="..\libavfilter\af_join.c">
       <Filter>Source Files\libavfilter</Filter>
     </ClCompile>
diff --git a/SMP/libavutil.def b/SMP/libavutil.def
index 5e61a275c2481c0bcefb30611f4edf3fd8e25214..fb38d85f7612839382f05a147014c07d2f41bac9 100644
--- a/SMP/libavutil.def
+++ b/SMP/libavutil.def
@@ -236,9 +236,13 @@ EXPORTS
     av_hmac_update
     av_hwdevice_ctx_alloc
     av_hwdevice_ctx_create
+    av_hwdevice_ctx_create_derived
     av_hwdevice_ctx_init
+    av_hwdevice_find_type_by_name
     av_hwdevice_get_hwframe_constraints
+    av_hwdevice_get_type_name
     av_hwdevice_hwconfig_alloc
+    av_hwdevice_iterate_types
     av_hwframe_constraints_free
     av_hwframe_ctx_alloc
     av_hwframe_ctx_create_derived