feat(YouTube Music): Add Disable DRC audio patch https://github.com/inotia00/ReVanced_Extended/issues/2552

extensions/shared/src/main/java/app/revanced/extension/music/patches/misc/DrcAudioPatch.java

@@ -0,0 +1,14 @@
+package app.revanced.extension.music.patches.misc;
+
+import app.revanced.extension.music.settings.Settings;
+
+@SuppressWarnings("unused")
+public class DrcAudioPatch {
+
+    public static float disableDrcAudio(float original) {
+        if (!Settings.DISABLE_DRC_AUDIO.get()) {
+            return original;
+        }
+        return 0f;
+    }
+}

extensions/shared/src/main/java/app/revanced/extension/music/settings/Settings.java

@@ -173,6 +173,7 @@ public class Settings extends BaseSettings {
     // PreferenceScreen: Miscellaneous
     public static final BooleanSetting CHANGE_SHARE_SHEET = new BooleanSetting("revanced_change_share_sheet", FALSE, true);
     public static final BooleanSetting DISABLE_CAIRO_SPLASH_ANIMATION = new BooleanSetting("revanced_disable_cairo_splash_animation", FALSE, true);
+    public static final BooleanSetting DISABLE_DRC_AUDIO = new BooleanSetting("revanced_disable_drc_audio", FALSE, true);
     public static final BooleanSetting ENABLE_OPUS_CODEC = new BooleanSetting("revanced_enable_opus_codec", FALSE, true);
     public static final BooleanSetting SPOOF_CLIENT = new BooleanSetting("revanced_spoof_client", FALSE, true);
     public static final BooleanSetting SETTINGS_IMPORT_EXPORT = new BooleanSetting("revanced_extended_settings_import_export", FALSE, false);

patches/src/main/kotlin/app/revanced/patches/music/misc/drc/DrcAudioPatch.kt

@@ -0,0 +1,64 @@
+package app.revanced.patches.music.misc.drc
+
+import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
+import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
+import app.revanced.patcher.patch.bytecodePatch
+import app.revanced.patches.music.utils.compatibility.Constants.COMPATIBLE_PACKAGE
+import app.revanced.patches.music.utils.extension.Constants.MISC_PATH
+import app.revanced.patches.music.utils.patch.PatchList.DISABLE_DRC_AUDIO
+import app.revanced.patches.music.utils.playservice.is_7_13_or_greater
+import app.revanced.patches.music.utils.playservice.versionCheckPatch
+import app.revanced.patches.music.utils.settings.CategoryType
+import app.revanced.patches.music.utils.settings.ResourceUtils.updatePatchStatus
+import app.revanced.patches.music.utils.settings.addSwitchPreference
+import app.revanced.patches.music.utils.settings.settingsPatch
+import app.revanced.util.fingerprint.matchOrThrow
+import com.android.tools.smali.dexlib2.iface.instruction.TwoRegisterInstruction
+
+private const val EXTENSION_CLASS_DESCRIPTOR =
+    "$MISC_PATH/DrcAudioPatch;"
+
+@Suppress("unused")
+val DrcAudioPatch = bytecodePatch(
+    DISABLE_DRC_AUDIO.title,
+    DISABLE_DRC_AUDIO.summary,
+) {
+    compatibleWith(COMPATIBLE_PACKAGE)
+
+    dependsOn(
+        settingsPatch,
+        versionCheckPatch,
+    )
+
+    execute {
+        val fingerprint = if (is_7_13_or_greater) {
+            compressionRatioFingerprint
+        } else {
+            compressionRatioLegacyFingerprint
+        }
+
+        fingerprint.matchOrThrow(formatStreamModelConstructorFingerprint).let {
+            it.method.apply {
+                val insertIndex = it.patternMatch!!.endIndex
+                val insertRegister = getInstruction<TwoRegisterInstruction>(insertIndex - 1).registerA
+
+                addInstructions(
+                    insertIndex,
+                    """
+                        invoke-static {v$insertRegister}, $EXTENSION_CLASS_DESCRIPTOR->disableDrcAudio(F)F
+                        move-result v$insertRegister
+                        """
+                )
+            }
+        }
+
+        addSwitchPreference(
+            CategoryType.MISC,
+            "revanced_disable_drc_audio",
+            "false"
+        )
+
+        updatePatchStatus(DISABLE_DRC_AUDIO)
+
+    }
+}

patches/src/main/kotlin/app/revanced/patches/music/misc/drc/Fingerprints.kt

@@ -0,0 +1,47 @@
+package app.revanced.patches.music.misc.drc
+
+import app.revanced.util.fingerprint.legacyFingerprint
+import app.revanced.util.or
+import com.android.tools.smali.dexlib2.AccessFlags
+import com.android.tools.smali.dexlib2.Opcode
+
+/**
+ * On YouTube, this class is 'Lcom/google/android/libraries/youtube/innertube/model/media/FormatStreamModel;'
+ * On YouTube Music, class names are obfuscated.
+ */
+internal val formatStreamModelConstructorFingerprint = legacyFingerprint(
+    name = "formatStreamModelConstructorFingerprint",
+    returnType = "V",
+    accessFlags = AccessFlags.PUBLIC or AccessFlags.CONSTRUCTOR,
+    literals = listOf(45374643L),
+)
+
+/**
+ * YouTube Music 7.13.52 ~
+ */
+internal val compressionRatioFingerprint = legacyFingerprint(
+    name = "compressionRatioFingerprint",
+    returnType = "Lj${'$'}/util/Optional;",
+    accessFlags = AccessFlags.PUBLIC or AccessFlags.FINAL,
+    parameters = emptyList(),
+    opcodes = listOf(
+        Opcode.IF_EQZ,
+        Opcode.IGET,
+        Opcode.NEG_FLOAT,
+    )
+)
+
+/**
+ * ~ YouTube Music 7.12.52
+ */
+internal val compressionRatioLegacyFingerprint = legacyFingerprint(
+    name = "compressionRatioLegacyFingerprint",
+    returnType = "F",
+    accessFlags = AccessFlags.PUBLIC or AccessFlags.FINAL,
+    parameters = emptyList(),
+    opcodes = listOf(
+        Opcode.IGET_OBJECT,
+        Opcode.IGET,
+        Opcode.RETURN,
+    )
+)

patches/src/main/kotlin/app/revanced/patches/music/utils/patch/PatchList.kt

@@ -45,6 +45,10 @@ internal enum class PatchList(
         "Disable Cairo splash animation",
         "Adds an option to disable Cairo splash animation."
     ),
+    DISABLE_DRC_AUDIO(
+        "Disable DRC audio",
+        "Adds an option to disable DRC (Dynamic Range Compression) audio."
+    ),
     DISABLE_AUTO_CAPTIONS(
         "Disable auto captions",
         "Adds an option to disable captions from being automatically enabled."

patches/src/main/kotlin/app/revanced/patches/music/utils/playservice/VersionCheckPatch.kt

@@ -13,6 +13,8 @@ var is_6_42_or_greater = false
     private set
 var is_7_06_or_greater = false
     private set
+var is_7_13_or_greater = false
+    private set
 var is_7_18_or_greater = false
     private set
 var is_7_20_or_greater = false
@@ -38,6 +40,7 @@ val versionCheckPatch = resourcePatch(
         is_6_36_or_greater = 240399000 <= playStoreServicesVersion
         is_6_42_or_greater = 240999000 <= playStoreServicesVersion
         is_7_06_or_greater = 242499000 <= playStoreServicesVersion
+        is_7_13_or_greater = 243199000 <= playStoreServicesVersion
         is_7_18_or_greater = 243699000 <= playStoreServicesVersion
         is_7_20_or_greater = 243899000 <= playStoreServicesVersion
         is_7_23_or_greater = 244199000 <= playStoreServicesVersion

patches/src/main/resources/music/settings/host/values/strings.xml

@@ -418,6 +418,8 @@ Click to see how to issue a API key."</string>
     <string name="revanced_change_share_sheet_summary">Change from in-app share sheet to system share sheet.</string>
     <string name="revanced_disable_cairo_splash_animation_title">Disable Cairo splash animation</string>
     <string name="revanced_disable_cairo_splash_animation_summary">Disables Cairo splash animation when the app starts up.</string>
+    <string name="revanced_disable_drc_audio_title">Disable DRC audio</string>
+    <string name="revanced_disable_drc_audio_summary">Disables DRC (Dynamic Range Compression) applied to audio.</string>
     <string name="revanced_enable_debug_logging_title">Enable debug logging</string>
     <string name="revanced_enable_debug_logging_summary">Prints the debug log.</string>
     <string name="revanced_enable_debug_buffer_logging_title">Enable debug buffer logging</string>