Fix T99083: audio bad in command-line video player (blender -a)

There was a wrong sample size computation in PulseAudioDevice.
The sample format is switched to float32 for the command-line player.

extern/audaspace/plugins/pulseaudio/PulseAudioDevice.cpp

@@ -41,7 +41,7 @@ double PulseAudioDevice::PulseAudioSynchronizer::getPosition(std::shared_ptr<IHa
 
 void PulseAudioDevice::updateRingBuffer()
 {
-	unsigned int samplesize = AUD_SAMPLE_SIZE(m_specs);
+	unsigned int samplesize = AUD_DEVICE_SAMPLE_SIZE(m_specs);
 
 	std::unique_lock<std::mutex> lock(m_mixingLock);
 

source/blender/windowmanager/intern/wm_playanim.c

@@ -1856,7 +1856,7 @@ void WM_main_playanim(int argc, const char **argv)
     AUD_DeviceSpecs specs;
 
     specs.rate = AUD_RATE_48000;
-    specs.format = AUD_FORMAT_S16;
+    specs.format = AUD_FORMAT_FLOAT32;
     specs.channels = AUD_CHANNELS_STEREO;
 
     AUD_initOnce();