From 375f54f00dba18e4a0a3f9b72b4ddf18758db679 Mon Sep 17 00:00:00 2001
From: Daniel Fernando Rico <d.rico@mobiera.com>
Date: Wed, 26 Jun 2024 10:47:12 -0500
Subject: [PATCH] feat: add support to change playback speed

---
 .../RNAudioRecorderPlayerModule.kt                | 10 ++++++++++
 index.ts                                          |  9 +++++++++
 ios/RNAudioRecorderPlayer.m                       |  4 ++++
 ios/RNAudioRecorderPlayer.swift                   | 15 +++++++++++++++
 4 files changed, 38 insertions(+)

diff --git a/android/src/main/java/com/dooboolab.audiorecorderplayer/RNAudioRecorderPlayerModule.kt b/android/src/main/java/com/dooboolab.audiorecorderplayer/RNAudioRecorderPlayerModule.kt
index 3624b9fa..037cc42b 100644
--- a/android/src/main/java/com/dooboolab.audiorecorderplayer/RNAudioRecorderPlayerModule.kt
+++ b/android/src/main/java/com/dooboolab.audiorecorderplayer/RNAudioRecorderPlayerModule.kt
@@ -194,6 +194,16 @@ class RNAudioRecorderPlayerModule(private val reactContext: ReactApplicationCont
         promise.resolve("set volume")
     }
 
+    @ReactMethod
+    fun setPlaybackSpeed(playbackSpeed: Float, promise: Promise) {
+        if (mediaPlayer == null) {
+            promise.reject("setPlaybackSpeed", "player is null.")
+            return
+        }
+        mediaPlayer!!.playbackParams = mediaPlayer!!.playbackParams.setSpeed(playbackSpeed)
+        promise.resolve("setPlaybackSpeed")
+    }
+
     @ReactMethod
     fun startPlayer(path: String, httpHeaders: ReadableMap?, promise: Promise) {
         if (mediaPlayer != null) {
diff --git a/index.ts b/index.ts
index 0f80fbf0..752b9a3b 100644
--- a/index.ts
+++ b/index.ts
@@ -420,6 +420,15 @@ class AudioRecorderPlayer {
     return RNAudioRecorderPlayer.setVolume(volume);
   };
 
+  /**
+   * Set playback speed.
+   * @param {number} setPlaybackSpeed set playback speed.
+   * @returns {Promise<string>}
+   */
+  setPlaybackSpeed = async (playbackSpeed: number): Promise<string> => {
+    return RNAudioRecorderPlayer.setPlaybackSpeed(playbackSpeed);
+  };
+
   /**
    * Set subscription duration. Default is 0.5.
    * @param {number} sec subscription callback duration in seconds.
diff --git a/ios/RNAudioRecorderPlayer.m b/ios/RNAudioRecorderPlayer.m
index ab011a09..3d9e86cf 100644
--- a/ios/RNAudioRecorderPlayer.m
+++ b/ios/RNAudioRecorderPlayer.m
@@ -30,6 +30,10 @@ @interface RCT_EXTERN_MODULE(RNAudioRecorderPlayer, RCTEventEmitter)
                   resolve:(RCTPromiseResolveBlock) resolve
                   rejecter:(RCTPromiseRejectBlock) reject);
 
+RCT_EXTERN_METHOD(setPlaybackSpeed:(float)playbackSpeed
+                  resolve:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject);
+
 RCT_EXTERN_METHOD(startPlayer:(NSString*)path
                   httpHeaders:(NSDictionary*)httpHeaders
                   resolve:(RCTPromiseResolveBlock)resolve
diff --git a/ios/RNAudioRecorderPlayer.swift b/ios/RNAudioRecorderPlayer.swift
index 83a988a0..a95ebeb8 100644
--- a/ios/RNAudioRecorderPlayer.swift
+++ b/ios/RNAudioRecorderPlayer.swift
@@ -464,6 +464,21 @@ class RNAudioRecorderPlayer: RCTEventEmitter, AVAudioRecorderDelegate {
         audioPlayer.volume = volume
         resolve(volume)
     }
+
+    @objc(setPlaybackSpeed:resolve:rejecter:)
+    public func setPlaybackSpeed(
+        playbackSpeed: Float,
+        resolve: @escaping RCTPromiseResolveBlock,
+        rejecter reject: @escaping RCTPromiseRejectBlock
+    ) -> Void {
+        if (audioPlayer == nil) {
+            return reject("RNAudioPlayerRecorder", "Player is null", nil)
+        }
+
+        audioPlayer.rate = playbackSpeed
+        resolve("setPlaybackSpeed")
+    }
+
     private func avFormat(fromString encoding: String?) -> AudioFormatID? {
         if (encoding == nil) {
             return kAudioFormatAppleLossless