FEAT(client): Add MP3 Recording

src/mumble/CMakeLists.txt

@@ -507,6 +507,13 @@ else()
 	message(WARNING "libsndfile is missing Opus-support -> No Opus-format recording")
 endif()
 
+# Check if sndfile version supports mp3
+if("${sndfile_VERSION}" VERSION_GREATER_EQUAL "1.1.0")
+	target_compile_definitions(mumble_client_object_lib PUBLIC USE_SNDFILE_MP3)
+else()
+	message(WARNING "libsndfile is missing Mp3-support -> No Mp3-format recording")
+endif()
+
 # Look for various targets as they are named differently on different platforms
 if(static AND TARGET sndfile-static)
 	target_link_libraries(mumble_client_object_lib PUBLIC sndfile-static)

src/mumble/VoiceRecorder.cpp

@@ -223,6 +223,18 @@ SF_INFO VoiceRecorder::createSoundFileInfo() const {
 			qWarning() << "VoiceRecorder: recording started to" << m_config.fileName << "@" << m_config.sampleRate
 					   << "hz in OPUS format";
 			break;
+#endif
+#ifdef USE_SNDFILE_MP3
+		case VoiceRecorderFormat::MP3:
+			sfinfo.frames     = 0;
+			sfinfo.samplerate = m_config.sampleRate;
+			sfinfo.channels   = 1;
+			sfinfo.format     = SF_FORMAT_MPEG | SF_FORMAT_MPEG_LAYER_III;
+			sfinfo.sections   = 0;
+			sfinfo.seekable   = 0;
+			qWarning() << "VoiceRecorder: recording started to" << m_config.fileName << "@" << m_config.sampleRate
+					   << "hz in MP3 format";
+			break;
 #endif
 	}
 
@@ -445,6 +457,10 @@ QString VoiceRecorderFormat::getFormatDescription(VoiceRecorderFormat::Format fm
 #ifdef USE_SNDFILE_OPUS
 		case VoiceRecorderFormat::OPUS:
 			return VoiceRecorder::tr(".opus - Lossy compressed");
+#endif
+#ifdef USE_SNDFILE_MP3
+		case VoiceRecorderFormat::MP3:
+			return VoiceRecorder::tr(".mp3 - Lossy compressed");
 #endif
 		default:
 			return QString();
@@ -466,6 +482,10 @@ QString VoiceRecorderFormat::getFormatDefaultExtension(VoiceRecorderFormat::Form
 #ifdef USE_SNDFILE_OPUS
 		case VoiceRecorderFormat::OPUS:
 			return QLatin1String("opus");
+#endif
+#ifdef USE_SNDFILE_MP3
+		case VoiceRecorderFormat::MP3:
+			return QLatin1String("mp3");
 #endif
 		default:
 			return QString();

src/mumble/VoiceRecorder.h

@@ -54,6 +54,9 @@ enum Format {
 #ifdef USE_SNDFILE_OPUS
 	// OPUS Format
 	OPUS,
+#endif
+#ifdef USE_SNDFILE_MP3
+	MP3,
 #endif
 	kEnd
 };