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https://github.com/revanced/revanced-patches
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feat: custom-playback-speed patch (#50)
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bogadana
GitHub
parent
81af14f5db
commit
224254bcce
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package app.revanced.patches.youtube.misc.customplaybackspeed.annotations
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import app.revanced.patcher.annotation.Compatibility
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import app.revanced.patcher.annotation.Package
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@Compatibility(
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[Package(
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"com.google.android.youtube", arrayOf("17.24.34")
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)]
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)
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@Target(AnnotationTarget.CLASS)
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@Retention(AnnotationRetention.RUNTIME)
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internal annotation class CustomPlaybackSpeedCompatibility
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package app.revanced.patches.youtube.misc.customplaybackspeed.fingerprints
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import app.revanced.patcher.annotation.Name
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import app.revanced.patcher.annotation.Version
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import app.revanced.patcher.extensions.or
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
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import app.revanced.patcher.fingerprint.method.annotation.FuzzyPatternScanMethod
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import app.revanced.patcher.fingerprint.method.annotation.MatchingMethod
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import app.revanced.patches.youtube.misc.customplaybackspeed.annotations.CustomPlaybackSpeedCompatibility
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import org.jf.dexlib2.AccessFlags
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import org.jf.dexlib2.Opcode
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@Name("speed-array-generator-fingerprint")
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@MatchingMethod(
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"Lzdj;", "d"
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)
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@FuzzyPatternScanMethod(2)
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@CustomPlaybackSpeedCompatibility
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@Version("0.0.1")
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object SpeedArrayGeneratorFingerprint : MethodFingerprint(
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"[L",
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AccessFlags.PUBLIC or AccessFlags.STATIC,
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null,
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listOf(
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Opcode.IF_NEZ,
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Opcode.SGET_OBJECT,
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Opcode.GOTO,
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Opcode.INVOKE_INTERFACE,
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Opcode.MOVE_RESULT_OBJECT,
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Opcode.IGET_OBJECT,
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),
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listOf("0.0#")
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)
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package app.revanced.patches.youtube.misc.customplaybackspeed.fingerprints
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import app.revanced.patcher.annotation.Name
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import app.revanced.patcher.annotation.Version
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import app.revanced.patcher.extensions.or
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
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import app.revanced.patcher.fingerprint.method.annotation.FuzzyPatternScanMethod
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import app.revanced.patcher.fingerprint.method.annotation.MatchingMethod
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import app.revanced.patches.youtube.misc.customplaybackspeed.annotations.CustomPlaybackSpeedCompatibility
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import org.jf.dexlib2.AccessFlags
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import org.jf.dexlib2.Opcode
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@Name("speed-limiter-fingerprint")
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@MatchingMethod(
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"Lxgy;", "y"
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)
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@FuzzyPatternScanMethod(2)
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@CustomPlaybackSpeedCompatibility
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@Version("0.0.1")
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object SpeedLimiterFingerprint : MethodFingerprint(
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"V",
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AccessFlags.PUBLIC or AccessFlags.FINAL,
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listOf("F"),
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listOf(
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Opcode.INVOKE_STATIC,
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Opcode.MOVE_RESULT,
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Opcode.IF_EQZ,
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Opcode.CONST_HIGH16,
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Opcode.GOTO,
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Opcode.CONST_HIGH16,
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Opcode.CONST_HIGH16,
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Opcode.INVOKE_STATIC,
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),
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)
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package app.revanced.patches.youtube.misc.customplaybackspeed.patch
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import app.revanced.patcher.annotation.Description
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import app.revanced.patcher.annotation.Name
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import app.revanced.patcher.annotation.Version
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import app.revanced.patcher.data.impl.BytecodeData
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import app.revanced.patcher.extensions.addInstructions
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import app.revanced.patcher.extensions.replaceInstruction
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import app.revanced.patcher.patch.annotations.Patch
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import app.revanced.patcher.patch.annotations.Dependencies
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import app.revanced.patcher.patch.impl.BytecodePatch
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import app.revanced.patcher.patch.PatchResult
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import app.revanced.patcher.patch.PatchResultSuccess
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import app.revanced.patcher.patch.PatchResultError
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import app.revanced.patches.youtube.misc.customplaybackspeed.annotations.CustomPlaybackSpeedCompatibility
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import app.revanced.patches.youtube.misc.customplaybackspeed.fingerprints.SpeedArrayGeneratorFingerprint
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import app.revanced.patches.youtube.misc.customplaybackspeed.fingerprints.SpeedLimiterFingerprint
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import app.revanced.patches.youtube.misc.integrations.patch.IntegrationsPatch
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import org.jf.dexlib2.iface.instruction.ReferenceInstruction
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import org.jf.dexlib2.iface.instruction.NarrowLiteralInstruction
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import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
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import org.jf.dexlib2.iface.reference.MethodReference
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import org.jf.dexlib2.iface.reference.FieldReference
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@Patch
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@Name("custom-playback-speed")
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@Description("Allows to change the default playback speed options")
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@Dependencies(dependencies = [IntegrationsPatch::class])
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@CustomPlaybackSpeedCompatibility
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@Version("0.0.1")
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class CustomPlaybackSpeedPatch : BytecodePatch(
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listOf(
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SpeedArrayGeneratorFingerprint, SpeedLimiterFingerprint
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)
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) {
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override fun execute(data: BytecodeData): PatchResult {
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val arrayGenMethod = SpeedArrayGeneratorFingerprint.result?.mutableMethod!!
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val arrayGenMethodImpl = arrayGenMethod.implementation!!
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val sizeCallIndex = arrayGenMethodImpl.instructions
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.indexOfFirst { ((it as? ReferenceInstruction)?.reference as? MethodReference)?.name == "size" }
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if (sizeCallIndex == -1) return PatchResultError("Couldn't find call to size()")
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val sizeCallResultRegister =
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(arrayGenMethodImpl.instructions.elementAt(sizeCallIndex + 1) as OneRegisterInstruction).registerA
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arrayGenMethod.replaceInstruction(
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sizeCallIndex + 1,
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"const/4 v$sizeCallResultRegister, 0x0"
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)
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val (arrayLengthConstIndex, arrayLengthConst) = arrayGenMethodImpl.instructions.withIndex()
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.first { (it.value as? NarrowLiteralInstruction)?.narrowLiteral == 7 }
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val arrayLengthConstDestination = (arrayLengthConst as OneRegisterInstruction).registerA
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val videoSpeedsArrayType = "Lapp/revanced/integrations/videoplayer/videosettings/VideoSpeed;->videoSpeeds:[F"
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arrayGenMethod.addInstructions(
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arrayLengthConstIndex + 1,
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"""
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sget-object v$arrayLengthConstDestination, $videoSpeedsArrayType
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array-length v$arrayLengthConstDestination, v$arrayLengthConstDestination
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"""
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)
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val (originalArrayFetchIndex, originalArrayFetch) = arrayGenMethodImpl.instructions.withIndex()
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.first {
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val reference = ((it.value as? ReferenceInstruction)?.reference as? FieldReference)
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reference?.definingClass?.contains("PlayerConfigModel") ?: false &&
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reference?.type == "[F"
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}
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val originalArrayFetchDestination = (originalArrayFetch as OneRegisterInstruction).registerA
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arrayGenMethod.replaceInstruction(
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originalArrayFetchIndex,
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"sget-object v$originalArrayFetchDestination, $videoSpeedsArrayType"
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)
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val limiterMethod = SpeedLimiterFingerprint.result?.mutableMethod!!;
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val limiterMethodImpl = limiterMethod.implementation!!
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val speedLimitMin = 0.25f
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val speedLimitMax = 100f
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val (limiterMinConstIndex, limiterMinConst) = limiterMethodImpl.instructions.withIndex()
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.first { (it.value as? NarrowLiteralInstruction)?.narrowLiteral == 0.25f.toRawBits() }
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val (limiterMaxConstIndex, limiterMaxConst) = limiterMethodImpl.instructions.withIndex()
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.first { (it.value as? NarrowLiteralInstruction)?.narrowLiteral == 2.0f.toRawBits() }
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val limiterMinConstDestination = (limiterMinConst as OneRegisterInstruction).registerA
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val limiterMaxConstDestination = (limiterMaxConst as OneRegisterInstruction).registerA
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fun hexFloat(float: Float): String = "0x%08x".format(float.toRawBits())
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limiterMethod.replaceInstruction(
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limiterMinConstIndex,
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"const/high16 v$limiterMinConstDestination, ${hexFloat(speedLimitMin)}"
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)
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limiterMethod.replaceInstruction(
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limiterMaxConstIndex,
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"const/high16 v$limiterMaxConstDestination, ${hexFloat(speedLimitMax)}"
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)
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return PatchResultSuccess()
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}
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}
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