feat(youtube/custom-video-buffer): replace patch with removal notice (#1718)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>

src/main/kotlin/app/revanced/patches/shared/settings/preference/impl/NonInteractivePreference.kt

@@ -0,0 +1,26 @@
+package app.revanced.patches.shared.settings.preference.impl
+
+import app.revanced.patches.shared.settings.preference.BasePreference
+import app.revanced.patches.shared.settings.preference.IResource
+import app.revanced.patches.shared.settings.preference.addSummary
+import org.w3c.dom.Document
+import org.w3c.dom.Element
+
+/**
+ * A simple static title and summary that is not backed by any preference key/value,
+ * and cannot be changed by or interacted with by the user,
+ */
+internal class NonInteractivePreference(
+    title: StringResource,
+    val summary: StringResource,
+) : BasePreference("", title) {
+    override val tag: String = "Preference"
+
+    override fun serialize(ownerDocument: Document, resourceCallback: ((IResource) -> Unit)?): Element {
+        return super.serialize(ownerDocument, resourceCallback).apply {
+            addSummary(summary.also { resourceCallback?.invoke(it)
+                setAttribute("android:selectable", false.toString())
+            })
+        }
+    }
+}

src/main/kotlin/app/revanced/patches/youtube/misc/videobuffer/annotations/CustomVideoBufferCompatibility.kt

@@ -3,6 +3,7 @@ package app.revanced.patches.youtube.misc.videobuffer.annotations
 import app.revanced.patcher.annotation.Compatibility
 import app.revanced.patcher.annotation.Package
 
+// TODO: delete this
 @Compatibility(
     [Package(
         "com.google.android.youtube", arrayOf(

src/main/kotlin/app/revanced/patches/youtube/misc/videobuffer/fingerprints/InvokeMaxBufferFingerprint.kt

@@ -1,12 +0,0 @@
-package app.revanced.patches.youtube.misc.videobuffer.fingerprints
-
-import app.revanced.patcher.extensions.or
-import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
-import org.jf.dexlib2.AccessFlags
-import org.jf.dexlib2.Opcode
-
-object InvokeMaxBufferFingerprint : MethodFingerprint(
-    "Z", AccessFlags.PUBLIC or AccessFlags.FINAL, listOf("J", "J", "F"),
-    listOf(Opcode.CONST_WIDE_16),
-    strings = listOf("scl.")
-)

src/main/kotlin/app/revanced/patches/youtube/misc/videobuffer/fingerprints/MaxBufferFingerprint.kt

@@ -1,8 +0,0 @@
-package app.revanced.patches.youtube.misc.videobuffer.fingerprints
-
-import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
-import org.jf.dexlib2.Opcode
-
-object MaxBufferFingerprint : MethodFingerprint(
-    opcodes = listOf(Opcode.SGET_OBJECT, Opcode.IGET, Opcode.IF_EQZ, Opcode.RETURN),
-)

src/main/kotlin/app/revanced/patches/youtube/misc/videobuffer/fingerprints/PlaybackBufferFingerprint.kt

@@ -1,18 +0,0 @@
-package app.revanced.patches.youtube.misc.videobuffer.fingerprints
-
-import app.revanced.patcher.extensions.or
-import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
-import org.jf.dexlib2.AccessFlags
-import org.jf.dexlib2.Opcode
-import org.jf.dexlib2.iface.instruction.NarrowLiteralInstruction
-
-object PlaybackBufferFingerprint : MethodFingerprint(
-    "I", AccessFlags.PUBLIC or AccessFlags.FINAL, listOf(),
-    listOf(Opcode.IF_LEZ, Opcode.RETURN),
-    customFingerprint = { methodDef ->
-        methodDef.definingClass == "Lcom/google/android/libraries/youtube/innertube/model/media/PlayerConfigModel;"
-                && methodDef.implementation!!.instructions.any {
-            ((it as? NarrowLiteralInstruction)?.narrowLiteral == 1600)
-        }
-    }
-)

src/main/kotlin/app/revanced/patches/youtube/misc/videobuffer/fingerprints/ReBufferFingerprint.kt

@@ -1,18 +0,0 @@
-package app.revanced.patches.youtube.misc.videobuffer.fingerprints
-
-import app.revanced.patcher.extensions.or
-import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
-import org.jf.dexlib2.AccessFlags
-import org.jf.dexlib2.Opcode
-import org.jf.dexlib2.iface.instruction.NarrowLiteralInstruction
-
-object ReBufferFingerprint : MethodFingerprint(
-    "I", AccessFlags.PUBLIC or AccessFlags.FINAL, listOf(),
-    listOf(Opcode.IF_LEZ, Opcode.RETURN),
-    customFingerprint = { methodDef ->
-        methodDef.definingClass == "Lcom/google/android/libraries/youtube/innertube/model/media/PlayerConfigModel;"
-                && methodDef.implementation!!.instructions.any {
-            ((it as? NarrowLiteralInstruction)?.narrowLiteral == 5000)
-        }
-    }
-)

src/main/kotlin/app/revanced/patches/youtube/misc/videobuffer/patch/CustomVideoBufferPatch.kt

@@ -1,201 +1,36 @@
 package app.revanced.patches.youtube.misc.videobuffer.patch
 
-import app.revanced.extensions.toErrorResult
 import app.revanced.patcher.annotation.Description
 import app.revanced.patcher.annotation.Name
 import app.revanced.patcher.annotation.Version
 import app.revanced.patcher.data.BytecodeContext
-import app.revanced.patcher.data.toMethodWalker
-import app.revanced.patcher.extensions.addInstructions
-import app.revanced.patcher.extensions.instruction
-import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
-import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint.Companion.resolve
 import app.revanced.patcher.patch.BytecodePatch
 import app.revanced.patcher.patch.PatchResult
 import app.revanced.patcher.patch.PatchResultSuccess
 import app.revanced.patcher.patch.annotations.DependsOn
 import app.revanced.patcher.patch.annotations.Patch
-import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
+import app.revanced.patches.shared.settings.preference.impl.*
-import app.revanced.patches.shared.settings.preference.impl.InputType
-import app.revanced.patches.shared.settings.preference.impl.PreferenceScreen
-import app.revanced.patches.shared.settings.preference.impl.StringResource
-import app.revanced.patches.shared.settings.preference.impl.TextPreference
 import app.revanced.patches.youtube.misc.settings.bytecode.patch.SettingsPatch
 import app.revanced.patches.youtube.misc.videobuffer.annotations.CustomVideoBufferCompatibility
-import app.revanced.patches.youtube.misc.videobuffer.fingerprints.InvokeMaxBufferFingerprint
-import app.revanced.patches.youtube.misc.videobuffer.fingerprints.MaxBufferFingerprint
-import app.revanced.patches.youtube.misc.videobuffer.fingerprints.PlaybackBufferFingerprint
-import app.revanced.patches.youtube.misc.videobuffer.fingerprints.ReBufferFingerprint
-import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
 
-@Patch
+// TODO: delete this patch
+@Patch(include = false)
 @Name("custom-video-buffer")
 @Description("Lets you change the buffers of videos.")
 @DependsOn([SettingsPatch::class])
 @CustomVideoBufferCompatibility
 @Version("0.0.1")
-class CustomVideoBufferPatch : BytecodePatch(
+class CustomVideoBufferPatch : BytecodePatch() {
-    listOf(
-        InvokeMaxBufferFingerprint,
-        PlaybackBufferFingerprint,
-        ReBufferFingerprint,
-    )
-) {
     override fun execute(context: BytecodeContext): PatchResult {
         SettingsPatch.PreferenceScreen.MISC.addPreferences(
-            PreferenceScreen(
+            NonInteractivePreference(
-                "revanced_custom_video_buffer",
+                StringResource("revanced_custom_video_buffer_disclaimer_title", "Custom video buffer"),
-                StringResource("revanced_custom_video_buffer_title", "Video buffer settings"),
+                StringResource("revanced_custom_video_buffer_disclaimer_title_summary",
-                listOf(
+                    "These settings have been removed, because they were not functional for the duration of their existence"),
-                    TextPreference(
-                        "revanced_pref_max_buffer_ms",
-                        StringResource("revanced_pref_max_buffer_ms_title", "Maximum buffer size"),
-                        InputType.NUMBER,
-                        "120000",
-                        StringResource(
-                            "revanced_pref_max_buffer_ms_summary",
-                            "The maximum size of a buffer for playback"
-                        )
-                    ),
-                    TextPreference(
-                        "revanced_pref_buffer_for_playback_ms",
-                        StringResource("revanced_pref_buffer_for_playback_ms_title", "Maximum buffer for playback"),
-                        InputType.NUMBER,
-                        "2500",
-                        StringResource(
-                            "revanced_pref_buffer_for_playback_ms_summary",
-                            "Maximum size of a buffer for playback"
-                        )
-                    ),
-                    TextPreference(
-                        "revanced_pref_buffer_for_playback_after_rebuffer_ms",
-                        StringResource(
-                            "revanced_pref_buffer_for_playback_after_rebuffer_ms_title",
-                            "Maximum buffer for playback after rebuffer"
-                        ),
-                        InputType.NUMBER,
-                        "5000",
-                        StringResource(
-                            "revanced_pref_buffer_for_playback_after_rebuffer_ms_summary",
-                            "Maximum size of a buffer for playback after rebuffering"
             )
         )
-                ),
-                StringResource("revanced_custom_video_buffer_summary", "Custom settings for video buffer")
-            )
-        )
-        BufferType.values().forEach { type ->
-            type.hook(context)
-        }
 
         return PatchResultSuccess()
     }
-
-    /**
-     * The type of buffer.
-     *
-     * @param patchInfo The corresponding information to patch the buffer type.
-     * @param preparation Optional preparation before patching.
-     */
-    private enum class BufferType(
-        private val patchInfo: PatchInfo,
-        private val preparation: (BytecodeContext.() -> Unit)? = null,
-    ) {
-
-        PLAYBACK(PatchInfo(PlaybackBufferFingerprint, "getPlaybackBuffer")),
-        RE(PatchInfo(ReBufferFingerprint, "getReBuffer")),
-        MAX(
-            PatchInfo(
-                MaxBufferFingerprint,
-                "getMaxBuffer",
-                PatchInfo.UnwrapInfo(true, -1)
-            ),
-            preparation@{
-                InvokeMaxBufferFingerprint.result?.apply {
-                    val maxBufferMethodCallOffset = 2
-
-                    val maxBufferMethod = this@preparation.toMethodWalker(method)
-                        .nextMethod(scanResult.patternScanResult!!.endIndex + maxBufferMethodCallOffset)
-                        .getMethod()
-
-                    if (!MaxBufferFingerprint.resolve(
-                            this@preparation,
-                            maxBufferMethod,
-                            // This is inefficient because toMethodWalker technically already has context about this.
-                            // Alternatively you can iterate manually over all classes
-                            // instead of relying on toMethodWalker.
-                            this@preparation.findClass(maxBufferMethod.definingClass)!!.immutableClass,
-                        )
-                    ) throw MaxBufferFingerprint.toErrorResult()
-                } ?: throw InvokeMaxBufferFingerprint.toErrorResult()
-            });
-
-        /**
-         * Information about a patch.
-         *
-         * @param fingerprint The corresponding [MethodFingerprint] for the patch.
-         * @param integrationsMethodName The corresponding name of the hooking method.
-         * @param unwrapInfo Optional information on how to treat the [MethodFingerprint].
-         */
-        private class PatchInfo(
-            val fingerprint: MethodFingerprint,
-            val integrationsMethodName: String,
-            val unwrapInfo: UnwrapInfo? = null
-        ) {
-            /**
-             * Information on how to treat a [MethodFingerprint].
-             *
-             * @param useEndIndex Whether to retrieve information of the [MethodFingerprint]
-             * from the end index of its pattern scan result.
-             * @param offset An additional offset to [useEndIndex].
-             */
-            class UnwrapInfo(val useEndIndex: Boolean = false, val offset: Int = 0)
 }
 
-        fun hook(context: BytecodeContext) {
-            /**
-             * The resulting instruction info for unwrapping [MethodFingerprint].
-             *
-             * @param index The index of the instruction.
-             * @param register The register of the instruction.
-             */
-            data class InstructionResult(val index: Int, val register: Int)
-
-            /***
-             * The result of unwrapping [MethodFingerprint].
-             *
-             * @param method The method which was retrieved from the [MethodFingerprint].
-             * @param instructionResult The resulting instruction info for unwrapping [MethodFingerprint].
-             */
-            data class UnwrapResult(val method: MutableMethod, val instructionResult: InstructionResult)
-
-            fun MethodFingerprint.unwrap(unwrapInfo: PatchInfo.UnwrapInfo? = null): UnwrapResult {
-                val result = this.result!!
-                val method = result.mutableMethod
-                val scanResult = result.scanResult.patternScanResult!!
-                val index =
-                    if (unwrapInfo?.useEndIndex == true) scanResult.endIndex
-                    else {
-                        scanResult.startIndex
-                    } + (unwrapInfo?.offset ?: 0)
-
-                val register = (method.instruction(index) as OneRegisterInstruction).registerA
-
-                return UnwrapResult(method, InstructionResult(index, register))
-            }
-
-            preparation?.invoke(context)
-
-            val (method, result) = patchInfo.fingerprint.unwrap(patchInfo.unwrapInfo)
-            val (index, register) = result
-
-            method.addInstructions(
-                index + 1,
-                """
-                   invoke-static {}, Lapp/revanced/integrations/patches/VideoBufferPatch;->${patchInfo.integrationsMethodName}()I
-                   move-result v$register
-                """
-            )
-        }
-    }
-}