feat: override video playback rate

common/src/main/assets/lang/en_US.json

@@ -522,6 +522,14 @@
                         "name": "Bypass Video Length Restrictions",
                         "description": "Single: sends a single video\nSplit: split videos after editing"
                     },
+                    "default_video_playback_rate": {
+                        "name": "Default Video Playback Rate",
+                        "description": "Sets the default speed for the playback of videos\nValue must be between 0.1 and 4.0"
+                    },
+                    "video_playback_rate_slider": {
+                        "name": "Video Playback Rate Slider",
+                        "description": "Adds a slider in opera context menu to change the video playback rate\nNote: Changes only apply to subsequent videos"
+                    },
                     "disable_google_play_dialogs": {
                         "name": "Disable Google Play Services Dialogs",
                         "description": "Prevent Google Play Services availability dialogs from being shown"

common/src/main/kotlin/me/rhunk/snapenhance/common/config/impl/Global.kt

@@ -33,6 +33,8 @@ class Global : ConfigContainer() {
     val spotlightCommentsUsername = boolean("spotlight_comments_username") { requireRestart() }
     val bypassVideoLengthRestriction = unique("bypass_video_length_restriction", "split", "single") { addNotices(
         FeatureNotice.BAN_RISK); requireRestart(); nativeHooks() }
+    val defaultVideoPlaybackRate = float("default_video_playback_rate", 1.0F) { requireRestart(); inputCheck = { (it.toFloatOrNull() ?: 1.0F) in 0.1F..4.0F} }
+    val videoPlaybackRateSlider = boolean("video_playback_rate_slider") { requireRestart() }
     val disableGooglePlayDialogs = boolean("disable_google_play_dialogs") { requireRestart() }
     val forceUploadSourceQuality = boolean("force_upload_source_quality") { requireRestart() }
     val disableSnapSplitting = boolean("disable_snap_splitting") { addNotices(FeatureNotice.INTERNAL_BEHAVIOR) }

core/src/main/kotlin/me/rhunk/snapenhance/core/features/impl/OperaViewerParamsOverride.kt

@@ -7,6 +7,8 @@ import me.rhunk.snapenhance.core.util.hook.hook
 import me.rhunk.snapenhance.mapper.impl.OperaViewerParamsMapper
 
 class OperaViewerParamsOverride : Feature("OperaViewerParamsOverride", loadParams = FeatureLoadParams.ACTIVITY_CREATE_SYNC) {
+    var currentPlaybackRate = 1.0F
+
     data class OverrideKey(
         val name: String,
         val defaultValue: Any?
@@ -24,6 +26,12 @@ class OperaViewerParamsOverride : Feature("OperaViewerParamsOverride", loadParam
             overrideMap[key] = Override(filter, value)
         }
 
+        currentPlaybackRate = context.config.global.defaultVideoPlaybackRate.getNullable()?.takeIf { it > 0 } ?: 1.0F
+
+        if (context.config.global.videoPlaybackRateSlider.get() || currentPlaybackRate != 1.0F) {
+            overrideParam("video_playback_rate", { currentPlaybackRate != 1.0F }, { _, _ -> currentPlaybackRate.toDouble() })
+        }
+
         if (context.config.messaging.loopMediaPlayback.get()) {
             //https://github.com/rodit/SnapMod/blob/master/app/src/main/java/xyz/rodit/snapmod/features/opera/SnapDurationModifier.kt
             overrideParam("auto_advance_mode", { true }, { key, _ -> key.defaultValue })
@@ -37,29 +45,36 @@ class OperaViewerParamsOverride : Feature("OperaViewerParamsOverride", loadParam
         }
 
         context.mappings.useMapper(OperaViewerParamsMapper::class) {
-            classReference.get()?.hook(putMethod.get()!!, HookStage.BEFORE) { param ->
-                val key = param.argNullable<Any>(0)?.let {  key ->
-                    val fields = key::class.java.fields
-                    OverrideKey(
-                        name = fields.firstOrNull {
-                            it.type == String::class.java
-                        }?.get(key)?.toString() ?: return@hook,
-                        defaultValue = fields.firstOrNull {
-                            it.type == Object::class.java
-                        }?.get(key)
-                    )
-                } ?: return@hook
-                val value = param.argNullable<Any>(1) ?: return@hook
+            fun overrideParamResult(paramKey: Any, value: Any?): Any? {
+                val fields = paramKey::class.java.fields
+                val key = OverrideKey(
+                    name = fields.firstOrNull {
+                        it.type == String::class.java
+                    }?.get(paramKey)?.toString() ?: return value,
+                    defaultValue = fields.firstOrNull {
+                        it.type == Object::class.java
+                    }?.get(paramKey)
+                )
 
                 overrideMap[key.name]?.let { override ->
                     if (override.filter(value)) {
                         runCatching {
-                            param.setArg(1, override.value(key, value))
+                            return override.value(key, value)
                         }.onFailure {
                             context.log.error("Failed to override param $key", it)
                         }
                     }
                 }
+
+                return value
+            }
+
+            classReference.get()?.hook(getMethod.get()!!, HookStage.AFTER) { param ->
+                param.setResult(overrideParamResult(param.arg(0), param.getResult()))
+            }
+
+            classReference.get()?.hook(getOrDefaultMethod.get()!!, HookStage.AFTER) { param ->
+                param.setResult(overrideParamResult(param.arg(0), param.getResult()))
             }
         }
     }

core/src/main/kotlin/me/rhunk/snapenhance/core/ui/menu/impl/OperaContextActionMenu.kt

@@ -8,11 +8,27 @@ import android.widget.Button
 import android.widget.LinearLayout
 import android.widget.ScrollView
 import android.widget.TextView
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Slider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import me.rhunk.snapenhance.common.ui.createComposeView
+import me.rhunk.snapenhance.core.features.impl.OperaViewerParamsOverride
 import me.rhunk.snapenhance.core.features.impl.downloader.MediaDownloader
 import me.rhunk.snapenhance.core.ui.applyTheme
 import me.rhunk.snapenhance.core.ui.menu.AbstractMenu
 import me.rhunk.snapenhance.core.ui.triggerCloseTouchEvent
 import me.rhunk.snapenhance.core.util.ktx.getId
+import me.rhunk.snapenhance.core.util.ktx.getIdentifier
 import me.rhunk.snapenhance.core.util.ktx.vibrateLongPress
 import me.rhunk.snapenhance.core.wrapper.impl.ScSize
 import java.text.DateFormat
@@ -129,6 +145,45 @@ class OperaContextActionMenu : AbstractMenu() {
                 }
             }
 
+            if (context.config.global.videoPlaybackRateSlider.get()) {
+                val operaViewerParamsOverride = context.feature(OperaViewerParamsOverride::class)
+
+                linearLayout.addView(createComposeView(view.context) {
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(10.dp)
+                    ) {
+                        var value by remember { mutableFloatStateOf(operaViewerParamsOverride.currentPlaybackRate) }
+                        Slider(
+                            value = value,
+                            onValueChange = {
+                                value = it
+                                operaViewerParamsOverride.currentPlaybackRate = it
+                            },
+                            valueRange = 0.1F..4.0F,
+                            steps = 0,
+                            modifier = Modifier.fillMaxWidth()
+                        )
+                        Text(
+                            text = "x" + value.toString().take(4),
+                            color = remember {
+                                view.context.theme.obtainStyledAttributes(
+                                    intArrayOf(view.context.resources.getIdentifier("sigColorTextPrimary", "attr"))
+                                ).getColor(0, 0).let { Color(it) }
+                            },
+                            textAlign = TextAlign.Center,
+                            modifier = Modifier.fillMaxWidth()
+                        )
+                    }
+                }.apply {
+                    layoutParams = ViewGroup.LayoutParams(
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT
+                    )
+                })
+            }
+
             if (context.config.downloader.downloadContextMenu.get()) {
                 linearLayout.addView(Button(view.context).apply {
                     text = translation["download"]

mapper/src/main/kotlin/me/rhunk/snapenhance/mapper/impl/OperaViewerParamsMapper.kt

@@ -1,5 +1,6 @@
 package me.rhunk.snapenhance.mapper.impl
 
+import com.android.tools.smali.dexlib2.iface.Method
 import me.rhunk.snapenhance.mapper.AbstractClassMapper
 import me.rhunk.snapenhance.mapper.ext.findConstString
 import me.rhunk.snapenhance.mapper.ext.getClassName
@@ -8,25 +9,38 @@ import com.android.tools.smali.dexlib2.iface.reference.MethodReference
 
 class OperaViewerParamsMapper : AbstractClassMapper("OperaViewerParams") {
     val classReference = classReference("class")
-    val putMethod = string("putMethod")
+    val getMethod = string("getMethod")
+    val getOrDefaultMethod = string("getOrDefaultMethod")
+
+    private fun Method.hasHashMapReference(methodName: String) = implementation?.instructions?.any {
+        val instruction = it as? Instruction35c ?: return@any false
+        val reference = instruction.reference as? MethodReference ?: return@any false
+        reference.name == methodName && reference.definingClass == "Ljava/util/concurrent/ConcurrentHashMap;"
+    } == true
 
     init {
         mapper {
             for (classDef in classes) {
                 classDef.fields.firstOrNull { it.type == "Ljava/util/concurrent/ConcurrentHashMap;" } ?: continue
                 if (classDef.methods.firstOrNull { it.name == "toString" }?.implementation?.findConstString("Params") != true) continue
 
-                val putDexMethod = classDef.methods.firstOrNull { method ->
-                    method.implementation?.instructions?.any {
-                        val instruction = it as? Instruction35c ?: return@any false
-                        val reference = instruction.reference as? MethodReference ?: return@any false
-                        reference.name == "put" && reference.definingClass == "Ljava/util/concurrent/ConcurrentHashMap;"
-                    } == true
+                val getOrDefaultDexMethod = classDef.methods.firstOrNull { method ->
+                    method.returnType == "Ljava/lang/Object;" &&
+                    method.parameters.size == 2 &&
+                    method.parameterTypes[1] == "Ljava/lang/Object;" &&
+                    method.hasHashMapReference("get")
                 } ?: return@mapper
 
-                classReference.set(classDef.getClassName())
-                putMethod.set(putDexMethod.name)
+                val getDexMethod = classDef.methods.firstOrNull { method ->
+                    method.returnType == "Ljava/lang/Object;" &&
+                    method.parameters.size == 1 &&
+                    method.parameterTypes[0] == getOrDefaultDexMethod.parameterTypes[0] &&
+                    method.hasHashMapReference("get")
+                } ?: return@mapper
 
+                getMethod.set(getDexMethod.name)
+                getOrDefaultMethod.set(getOrDefaultDexMethod.name)
+                classReference.set(classDef.getClassName())
                 return@mapper
             }
         }