Revert "[audio] Replace libopus with FFmpeg (#4169)" (#4419)

This reverts commit ff8368c6066faf3962e2f77af7da4954e2ff6a43.

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4419
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

2 files changed, 52 insertions, 0 deletions

diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/LicensesFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/LicensesFragment.kt
index 226edfa00c..32b72fe38f 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/LicensesFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/LicensesFragment.kt
@@ -80,6 +80,13 @@ class LicensesFragment : Fragment() {
                 R.string.license_ffmpeg_text
             ),
             License(
+                R.string.license_opus,
+                R.string.license_opus_description,
+                R.string.license_opus_link,
+                R.string.license_opus_copyright,
+                R.string.license_opus_text
+            ),
+            License(
                 R.string.license_sirit,
                 R.string.license_sirit_description,
                 R.string.license_sirit_link,
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index e712ec4338..730f6bbade 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -1785,6 +1785,51 @@ FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
     </string>
+    <string name="license_opus" translatable="false">Opus</string>
+    <string name="license_opus_description" translatable="false">Modern audio compression for the internet</string>
+    <string name="license_opus_link" translatable="false">https://github.com/xiph/opus</string>
+    <string name="license_opus_copyright" translatable="false">Copyright 2001–2011 Xiph.Org, Skype Limited, Octasic, Jean-Marc Valin, Timothy B. Terriberry, CSIRO, Gregory Maxwell, Mark Borgerding, Erik de Castro Lopo</string>
+    <string name="license_opus_text" translatable="false">
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:\n\n
+
+- Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.\n\n
+
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.\n\n
+
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
+names of specific contributors, may be used to endorse or promote
+products derived from this software without specific prior written
+permission.\n\n
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS\'\' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\n
+
+Opus is subject to the royalty-free patent licenses which are
+specified at:\n\n
+
+Xiph.Org Foundation:
+https://datatracker.ietf.org/ipr/1524/ \n\n
+
+Microsoft Corporation:
+https://datatracker.ietf.org/ipr/1914/ \n\n
+
+Broadcom Corporation:
+https://datatracker.ietf.org/ipr/1526/
+    </string>
     <string name="license_sirit" translatable="false">Sirit</string>
     <string name="license_sirit_description" translatable="false">A runtime SPIR-V assembler</string>
     <string name="license_sirit_link" translatable="false">https://github.com/ReinUsesLisp/sirit</string>