Implements pause/resume for one file.

device/main/AudioPlayer.cpp

@@ -1,8 +1,9 @@
 #include "AudioPlayer.hpp"
 
+#include <iostream>
 #include <esp_player_wrapper.h>
 #include "audio_setup.h"
-
+#include <string>
 
 AudioPlayer::AudioPlayer() {
     playerHandle = setup_player(NULL, NULL);
@@ -11,11 +12,21 @@ AudioPlayer::AudioPlayer() {
     esp_audio_vol_set(playerHandle, 50);
 }
 
-void AudioPlayer::play(char* uri) {
+void AudioPlayer::play(std::string uri) {
+    if (isLastUri(uri)) {
+        esp_player_music_resume();
+    } else {
         esp_player_music_stop();
-    esp_player_sdcard_music_play(uri, 0);
+        esp_player_sdcard_music_play(uri.c_str(), 0);
+        std::cout << "Zeile 22 wurde ausgefuehrt." << "\n";
+        lastUri = std::string(uri);
+    }
 }
 
 void AudioPlayer::pause() {
     esp_player_music_pause();
 }
+
+bool AudioPlayer::isLastUri(std::string uri) {
+    return lastUri == uri;
+}

device/main/AudioPlayer.hpp

@@ -1,10 +1,16 @@
 #pragma once
 
+#include <string>
+
 class AudioPlayer {
 	void* playerHandle;
+	std::string lastUri;
 
 	public:
 		AudioPlayer();
-		void play(char* uri);
+		void play(std::string uri);
 		void pause();
+
+	private:
+		bool isLastUri(std::string uri);
 };

device/main/TagPlayerControl.cpp

@@ -5,13 +5,14 @@
 #include <iostream>
 #include <fstream>
 #include <string>
+#include <memory>
 
 #include <esp_log.h>
 
 static const char* TAG = "TagPlayerControl";
 
-TagPlayerControl::TagPlayerControl(AudioPlayer* player) {	
-	audioPlayer = player;
+TagPlayerControl::TagPlayerControl(std::shared_ptr<AudioPlayer> player)
+	: audioPlayer(player) {
 }
 
 void TagPlayerControl::onTagChanged(char* tagId) {
@@ -55,7 +56,7 @@ void TagPlayerControl::playTag(char* tagId) {
 		content.append(line);
 	}
 
-	audioPlayer->play((char*)(content.c_str()));
+	audioPlayer->play(content);
 
 	file.close();
 }

device/main/TagPlayerControl.hpp

@@ -1,12 +1,13 @@
 #pragma once
 
+#include <memory>
 #include "AudioPlayer.hpp"
 
 class TagPlayerControl {
-	AudioPlayer* audioPlayer;
+	std::shared_ptr<AudioPlayer> audioPlayer;
 
 	public:
-		TagPlayerControl(AudioPlayer* player);
+		TagPlayerControl(std::shared_ptr<AudioPlayer> player);
 
 		void onTagChanged(char* tagId);
 	

device/main/main.cpp

@@ -7,6 +7,7 @@
 #include "TagPlayerControl.hpp"
 
 #include <iostream>
+#include <memory>
 
 extern "C" {
     void app_main();
@@ -16,6 +17,10 @@ Networking networking;
 WebInterface webInterface;
 RFIDInterface rfid;
 
+std::shared_ptr<AudioPlayer> audioPlayer; // initialize here, because the ctor does init stuff that fails when executed before `app_main()`
+
+std::shared_ptr<TagPlayerControl> tagPlayerControl;
+
 void app_main(void) {
     initArduino();
 
@@ -27,13 +32,13 @@ void app_main(void) {
     rfid.registerWebResources(&webInterface);
     webInterface.finishResourceRegistrations();
 */
-    AudioPlayer audioPlayer; // initialize here, because the ctor does init stuff that fails when executed before `app_main()`
+
+    audioPlayer = std::make_shared<AudioPlayer>();
+    tagPlayerControl = std::make_shared<TagPlayerControl>(audioPlayer);
 
     rfid.start();
 
-    TagPlayerControl tagPlayerControl(&audioPlayer);
-
-    rfid.registerTagChangeCallback([&tagPlayerControl](char* tagId) {
-        tagPlayerControl.onTagChanged(tagId);
+    rfid.registerTagChangeCallback([tagPlayerControl](char* tagId) {
+        tagPlayerControl->onTagChanged(tagId);
     });
 }