Removed flatpak ffmpeg and restored the self built one as as it's not working

net.retrodeck.retrodeck.yml

@@ -5,7 +5,6 @@ sdk: org.kde.Sdk
 # Needed for rpcs3
 sdk-extensions:
   - org.freedesktop.Sdk.Extension.llvm13
-  - org.freedesktop.Platform.ffmpeg-full
 # /Needed for rpcs3
 # Needed for Yuzu
 base: io.qt.qtwebengine.BaseApp
@@ -151,22 +150,21 @@ modules:
   # ES-DE - START
   # https://gitlab.com/es-de/emulationstation-de
 
-  # Disabled because I'm using the flatpak sdk-extension
-  # - name: ffmpeg
-  #   config-opts:
-  #   - --disable-static
-  #   - --disable-programs
-  #   - --disable-doc
-  #   - --enable-gpl
-  #   - --enable-shared
-  #   - --enable-libvorbis
-  #   - --enable-libopus
-  #   - --enable-libvpx
-  #   - --enable-postproc
-  #   sources:
-  #   - type: git
-  #     url: https://github.com/FFmpeg/FFmpeg.git
-  #     tag: n5.0
+  - name: ffmpeg
+    config-opts:
+    - --disable-static
+    - --disable-programs
+    - --disable-doc
+    - --enable-gpl
+    - --enable-shared
+    - --enable-libvorbis
+    - --enable-libopus
+    - --enable-libvpx
+    - --enable-postproc
+    sources:
+    - type: git
+      url: https://github.com/FFmpeg/FFmpeg.git
+      tag: n5.0
 
   - name: freeimage
     no-autogen: true
@@ -1002,7 +1000,7 @@ modules:
   - name: ppsspp
     buildsystem: cmake-ninja
     config-opts:
-    - '-DUSE_SYSTEM_FFMPEG=ON' # was off
+    - '-DUSE_SYSTEM_FFMPEG=OFF'
     - '-DUSE_SYSTEM_LIBZIP=ON'
     - '-DUSE_SYSTEM_ZSTD=ON'