[#2333] Modify pulseaudio streams parameters

sflphone-common/src/audio/pulseaudio/audiostream.cpp

@@ -184,11 +184,11 @@ AudioStream::createStream (pa_context* c)
     // parameters are defined as number of bytes
     // 2048 bytes (1024 int16) is 20 ms at 44100 Hz 
     if (_streamType == PLAYBACK_STREAM) {
-        attributes->maxlength = 16000;
-        attributes->tlength = 2048;
-        attributes->prebuf = 2048;
-        attributes->minreq = 1024;
-        attributes->fragsize = 4096;
+        attributes->maxlength = 32000;
+        attributes->tlength = 8192;
+        attributes->prebuf = 4096;
+        attributes->minreq = 512;
+        attributes->fragsize = (uint32_t) -1;
         pa_stream_connect_playback( s , NULL , attributes, PA_STREAM_INTERPOLATE_TIMING, &_volume, NULL);
         // pa_stream_connect_playback (s , NULL , attributes, PA_STREAM_START_CORKED, &_volume, NULL);
     } else if (_streamType == CAPTURE_STREAM) {
@@ -197,10 +197,10 @@ AudioStream::createStream (pa_context* c)
         // attributes->fragsize = (uint32_t)-1;
 
         attributes->maxlength = 16000;
-        attributes->tlength = 1024;
-        attributes->prebuf = 1024;
+        attributes->tlength = 8192;
+        attributes->prebuf = 4096;
         attributes->minreq = 512;
-        attributes->fragsize = 1024;
+        attributes->fragsize = (uint32_t) -1;
 
         // pa_stream_connect_record (s , NULL , attributes , PA_STREAM_START_CORKED);
         pa_stream_connect_record( s , NULL , attributes , PA_STREAM_INTERPOLATE_TIMING );

sflphone-common/src/audio/pulseaudio/pulselayer.cpp

@@ -546,6 +546,7 @@ void PulseLayer::writeToSpeaker (void)
 
 		if((tone == 0) && (file_tone == 0)) {
 
+		    // _debug("maxNbBytesToGet: %i\n", maxNbBytesToGet);
 		    bzero (out, maxNbBytesToGet);
 		    pa_stream_write (playback->pulseStream(), out, maxNbBytesToGet, NULL, 0, PA_SEEK_RELATIVE);
 		}