fixed double play of audio after download complete

Telegram/SourceFiles/audio.cpp

@@ -1341,6 +1341,15 @@ void AudioPlayerLoaders::onStart(const AudioMsgId &audio, qint64 position) {
 	_audio = AudioMsgId();
 	delete _audioLoader;
 	_audioLoader = 0;
+
+	{
+		QMutexLocker lock(&playerMutex);
+		AudioPlayer *voice = audioPlayer();
+		if (!voice) return;
+
+		voice->_audioData[voice->_audioCurrent].loading = true;
+	}
+
 	loadData(OverviewAudios, static_cast<const void*>(&audio), position);
 }
 
@@ -1348,6 +1357,15 @@ void AudioPlayerLoaders::onStart(const SongMsgId &song, qint64 position) {
 	_song = SongMsgId();
 	delete _songLoader;
 	_songLoader = 0;
+
+	{
+		QMutexLocker lock(&playerMutex);
+		AudioPlayer *voice = audioPlayer();
+		if (!voice) return;
+
+		voice->_songData[voice->_songCurrent].loading = true;
+	}
+
 	loadData(OverviewDocuments, static_cast<const void*>(&song), position);
 }
 
@@ -1404,15 +1422,25 @@ void AudioPlayerLoaders::loadData(MediaOverviewType type, const void *objId, qin
 		return;
 	}
 
-	bool started = (err == SetupNoErrorStarted), finished = false;
+	bool started = (err == SetupNoErrorStarted), finished = false, errAtStart = started;
 
 	QByteArray result;
 	int64 samplesAdded = 0, frequency = l->frequency(), format = l->format();
 	while (result.size() < AudioVoiceMsgBufferSize) {
 		if (!l->readMore(result, samplesAdded)) {
+			if (errAtStart) {
+				{
+					QMutexLocker lock(&playerMutex);
+					AudioPlayer::Msg *m = checkLoader(type);
+					if (m) m->state = AudioPlayerStoppedAtStart;
+				}
+				emitError(type);
+				return;
+			}
 			finished = true;
 			break;
 		}
+		errAtStart = false;
 
 		QMutexLocker lock(&playerMutex);
 		if (!checkLoader(type)) {

Telegram/SourceFiles/mainwidget.cpp

@@ -1575,6 +1575,7 @@ void MainWidget::audioLoadRetry() {
 }
 
 void MainWidget::documentLoadProgress(mtpFileLoader *loader) {
+	bool songPlayActivated = false;
 	DocumentData *document = App::document(loader->objId());
 	if (document->loader) {
 		if (document->loader->done()) {
@@ -1595,6 +1596,8 @@ void MainWidget::documentLoadProgress(mtpFileLoader *loader) {
 						audioPlayer()->play(song);
 						if (App::main()) App::main()->documentPlayProgress(song);
 					}
+
+					songPlayActivated = true;
 				} else if(document->openOnSave > 0 && document->size < MediaViewImageSizeLimit) {
 					QImageReader reader(already);
 					if (reader.canRead()) {
@@ -1628,7 +1631,7 @@ void MainWidget::documentLoadProgress(mtpFileLoader *loader) {
 	}
 	App::wnd()->documentUpdated(document);
 
-	if (audioPlayer()) {
+	if (!songPlayActivated && audioPlayer()) {
 		SongMsgId playing;
 		AudioPlayerState playingState = AudioPlayerStopped;
 		int64 playingPosition = 0, playingDuration = 0;