TITANIC: Standardize audio rate constants

engines/titanic/sound/audio_buffer.h

@@ -28,10 +28,12 @@
 
 namespace Titanic {
 
+#define AUDIO_SAMPLING_RATE 22050
+
 class CAudioBuffer {
 private:
 	Common::Mutex _mutex;
-	FixedQueue<int16, 88200> _data;
+	FixedQueue<int16, AUDIO_SAMPLING_RATE * 4> _data;
 public:
 	bool _finished;
 public:

engines/titanic/sound/sound_manager.cpp

@@ -26,7 +26,6 @@
 
 namespace Titanic {
 
-const uint SAMPLING_RATE = 22050;
 const uint LATENCY = 100;
 const uint CHANNELS_COUNT = 16;
 
@@ -110,7 +109,7 @@ QSoundManager::QSoundManager(Audio::Mixer *mixer) : CSoundManager(), QMixer(mixe
 	Common::fill(&_channelsVolume[0], &_channelsVolume[16], 0);
 	Common::fill(&_channelsMode[0], &_channelsMode[16], 0);
 
-	qsWaveMixInitEx(QMIXCONFIG(SAMPLING_RATE, CHANNELS_COUNT, LATENCY));
+	qsWaveMixInitEx(QMIXCONFIG(AUDIO_SAMPLING_RATE, CHANNELS_COUNT, LATENCY));
 	qsWaveMixActivate(true);
 	qsWaveMixOpenChannel(0, QMIX_OPENALL);
 }

engines/titanic/sound/wave_file.cpp

@@ -188,7 +188,7 @@ const int16 *CWaveFile::lock() {
 	switch (_loadMode) {
 	case LOADMODE_SCUMMVM:
 		// Sanity checking that only raw 16-bit LE 22Khz waves can be locked
-		assert(_waveData && _rate == 22050);
+		assert(_waveData && _rate == AUDIO_SAMPLING_RATE);
 		assert(_flags == (Audio::FLAG_LITTLE_ENDIAN | Audio::FLAG_16BITS));
 		assert(_wavType == kWaveFormatPCM);