diff --git a/.github/workflows/amalgamation_test.yml b/.github/workflows/amalgamation_test.yml
index 8d2d5236550..1f9a4f54051 100644
--- a/.github/workflows/amalgamation_test.yml
+++ b/.github/workflows/amalgamation_test.yml
@@ -26,6 +26,7 @@ jobs:
           libavformat-dev \
           libavfilter-dev \
           libx264-dev \
+          libx265-dev \
           libasan4
 
       - name: compile test without ToxAV
@@ -48,7 +49,7 @@ jobs:
       - name: compile test with ToxAV
         run: |
           cd amalgamation
-          gcc -O3 -fPIC -g -fsanitize=address -fno-omit-frame-pointer amalgamation_test.c -DTEST_WITH_TOXAV $(pkg-config --cflags --libs libsodium opus vpx libavcodec libavutil x264) -pthread -o amalgamation_test_av
+          gcc -O3 -fPIC -g -fsanitize=address -fno-omit-frame-pointer amalgamation_test.c -DTEST_WITH_TOXAV $(pkg-config --cflags --libs libsodium opus vpx libavcodec libavutil x264 x265) -pthread -o amalgamation_test_av
 
       - name: check binary with ToxAV
         run: |
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9787620d2f7..0471a01d80c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,8 @@ jobs:
           libavcodec-dev \
           libavformat-dev \
           libavfilter-dev \
-          libx264-dev
+          libx264-dev \
+          libx265-dev
       - run: git submodule update --init --recursive
       - run: CC=clang .circleci/cmake-asan
 
@@ -59,6 +60,7 @@ jobs:
           libavcodec-dev \
           libavformat-dev \
           libavfilter-dev \
-          libx264-dev
+          libx264-dev \
+          libx265-dev
       - run: git submodule update --init --recursive
       - run: CC=clang .circleci/cmake-tsan
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 87a64cf7a07..aeec19a4176 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -29,7 +29,7 @@ jobs:
         languages: ${{ matrix.language }}
 
     - name: install deps
-      run: sudo apt-get update ; sudo apt-get install -y --force-yes --no-install-recommends cmake  libconfig-dev libgtest-dev libopus-dev libsodium-dev libvpx-dev pkg-config binutils libavutil-dev libavcodec-dev    libavformat-dev    libavfilter-dev    libx264-dev
+      run: sudo apt-get update ; sudo apt-get install -y --force-yes --no-install-recommends cmake  libconfig-dev libgtest-dev libopus-dev libsodium-dev libvpx-dev pkg-config binutils libavutil-dev libavcodec-dev    libavformat-dev    libavfilter-dev    libx264-dev libx265-dev
     - name: Autobuild
       uses: github/codeql-action/autobuild@v3
 
diff --git a/.github/workflows/custom_tests_asan.yml b/.github/workflows/custom_tests_asan.yml
index 93879173689..5b316f36090 100644
--- a/.github/workflows/custom_tests_asan.yml
+++ b/.github/workflows/custom_tests_asan.yml
@@ -35,7 +35,8 @@ jobs:
           libavcodec-dev \
           libavformat-dev \
           libavfilter-dev \
-          libx264-dev
+          libx264-dev \
+          libx265-dev
       - name: setup tor
         run: |
            sudo /etc/init.d/tor restart
@@ -76,8 +77,8 @@ jobs:
           rm -f test
           clang -g -O1 -fno-omit-frame-pointer -fsanitize=address \
           -Wno-everything -Wno-missing-variable-declarations \
-          $(pkg-config --cflags toxcore libavcodec libavutil x264 opus vpx libsodium) \
-          $(pkg-config --libs toxcore libavcodec libavutil x264 opus vpx libsodium) \
+          $(pkg-config --cflags toxcore libavcodec libavutil x264 x265 opus vpx libsodium) \
+          $(pkg-config --libs toxcore libavcodec libavutil x264 x265 opus vpx libsodium) \
           "$i" \
           -o test
           echo "RUN:--------------- ""$i"" ---------------"
diff --git a/.github/workflows/custom_tests_tsan.yml b/.github/workflows/custom_tests_tsan.yml
index 2ebc47199f0..e8acebf8076 100644
--- a/.github/workflows/custom_tests_tsan.yml
+++ b/.github/workflows/custom_tests_tsan.yml
@@ -35,7 +35,8 @@ jobs:
           libavcodec-dev \
           libavformat-dev \
           libavfilter-dev \
-          libx264-dev
+          libx264-dev \
+          libx265-dev
       - name: setup tor
         run: |
            sudo /etc/init.d/tor restart
@@ -88,8 +89,8 @@ jobs:
           rm -f test
           clang -g -O1 -fno-omit-frame-pointer -fsanitize=thread \
           -Wno-everything -Wno-missing-variable-declarations \
-          $(pkg-config --cflags toxcore libavcodec libavutil x264 opus vpx libsodium) \
-          $(pkg-config --libs toxcore libavcodec libavutil x264 opus vpx libsodium) \
+          $(pkg-config --cflags toxcore libavcodec libavutil x264 x265 opus vpx libsodium) \
+          $(pkg-config --libs toxcore libavcodec libavutil x264 x265 opus vpx libsodium) \
           "$i" \
           -o test
           echo "RUN:--------------- ""$i"" ---------------"
diff --git a/.github/workflows/tcc.yml b/.github/workflows/tcc.yml
index 1189a6f035d..cd40f622808 100644
--- a/.github/workflows/tcc.yml
+++ b/.github/workflows/tcc.yml
@@ -26,7 +26,8 @@ jobs:
           libavcodec-dev \
           libavformat-dev \
           libavfilter-dev \
-          libx264-dev
+          libx264-dev \
+          libx265-dev
       - run: .localrun/run_tcc.sh
 
       - name: Run the test