Switch to normal PulseAudio API.

src/protocols/vnc/client.c

@@ -37,7 +37,6 @@
 
 #include <stdlib.h>
 #include <string.h>
-#include <pthread.h>
 
 #include <rfb/rfbclient.h>
 
@@ -107,10 +106,6 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
 
     vnc_guac_client_data* guac_client_data;
 
-#ifdef ENABLE_PULSE    
-    pthread_t pa_read_thread;
-#endif
-
     int read_only;
 
     /* Set up libvncclient logging */
@@ -180,16 +175,11 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
                     "Audio will be encoded as %s",
                     guac_client_data->audio->encoder->mimetype);
 
-            /* Create a thread to read audio data */
-            if (pthread_create(&pa_read_thread, NULL, guac_pa_read_audio,
-                        (void*) client)) {
-                guac_protocol_send_error(client->socket,
-                        "Error initializing PulseAudio read thread");
-                guac_socket_flush(client->socket);
-                return 1;
-            }
-            
-            guac_client_data->audio_read_thread = &pa_read_thread;
+            /* Require threadsafe sockets if audio enabled */
+            guac_socket_require_threadsafe(client->socket);
+
+            /* Start audio stream */
+            guac_pa_start_stream(client);
             
         }
 
@@ -198,9 +188,6 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
             guac_client_log_info(client,
                     "No available audio encoding. Sound disabled.");
 
-        /* Require threadsafe sockets if audio enabled */
-        guac_socket_require_threadsafe(client->socket);
-
     } /* end if audio enabled */
 #endif
 

src/protocols/vnc/client.h

@@ -42,6 +42,8 @@
 #include <guacamole/audio.h>
 #include <rfb/rfbclient.h>
 
+#include <pulse/pulseaudio.h>
+
 extern char* __GUAC_CLIENT;
 
 typedef struct vnc_guac_client_data {
@@ -67,9 +69,9 @@ typedef struct vnc_guac_client_data {
     guac_audio_stream* audio;
     
     /**
-     * PulseAudio read thread.
+     * PulseAudio event loop.
      */
-    pthread_t* audio_read_thread;
+    pa_threaded_mainloop* pa_mainloop;
     
 } vnc_guac_client_data;
 

src/protocols/vnc/guac_handlers.c

@@ -39,7 +39,6 @@
 #include <string.h>
 #include <time.h>
 #include <iconv.h>
-#include <pthread.h>
 
 #include <rfb/rfbclient.h>
 
@@ -130,13 +129,9 @@ int vnc_guac_client_free_handler(guac_client* client) {
     rfbClient* rfb_client = guac_client_data->rfb_client;
 
 #ifdef ENABLE_PULSE
-    if (guac_client_data->audio_enabled) {
-    
-        /* Wait for audio read thread to join */
-        if (guac_client_data->audio_read_thread)
-            pthread_join(*(guac_client_data->audio_read_thread), NULL);
-        
-    }
+    /* If audio enabled, stop streaming */
+    if (guac_client_data->audio_enabled)
+        guac_pa_stop_stream(client);
 #endif
 
     /* Free encodings string, if used */

src/protocols/vnc/pulse.c

@@ -37,64 +37,19 @@
 
 #include <guacamole/client.h>
 
-#include <pulse/simple.h>
-#include <pulse/error.h>
+#include <pulse/pulseaudio.h>
 
-void* guac_pa_read_audio(void* data) {
+void guac_pa_start_stream(guac_client* client) {
 
-    pa_sample_spec spec;
-    pa_simple* stream;
-    int error;
-
-    /* Get client */
-    guac_client* client = (guac_client*) data;
-
-    /* Init sample spec */
-    spec.format   = PA_SAMPLE_S16LE;
-    spec.rate     = 44100;
-    spec.channels = 2;
-
-    /* Create new stream */
-    stream = pa_simple_new(NULL,    /* Name of server */
-            "Guacamole",            /* Name of client */
-            PA_STREAM_RECORD, NULL, /* Direction and device */
-            "Audio",                /* Name of stream */
-            &spec, NULL, NULL,      /* Stream options */
-            &error);
-
-    /* Fail on error */
-    if (stream == NULL) {
-        guac_client_log_error(client, "Unable to connect to PulseAudio: %s",
-                pa_strerror(error));
-        return NULL;
-    }
-
-    /* Start streaming */
-    guac_client_log_info(client, "Streaming audio from PulseAudio");
-
-    while (client->state == GUAC_CLIENT_RUNNING) {
-
-        uint8_t buffer[1024];
-
-        guac_client_log_info(client, "Reading...");
-
-        /* Read packet of audio data */
-        if (pa_simple_read(stream, buffer, sizeof(buffer), &error) < 0) {
-            guac_client_log_error(client, "Unable to read from PulseAudio: %s",
-                    pa_strerror(error));
-            return NULL;
-        }
-
-        /* STUB: Write data */
-        guac_client_log_info(client, "Would write %i", sizeof(buffer));
-
-    }
-
-    /* Close stream */
-    guac_client_log_info(client, "Streaming from PulseAudio finished");
-    pa_simple_free(stream);
-
-    return NULL;
+    /* STUB */
+    guac_client_log_info(client, "Starting audio stream");
+
+}
+
+void guac_pa_stop_stream(guac_client* client) {
+
+    /* STUB */
+    guac_client_log_info(client, "Audio stream finished");
 
 }
 

src/protocols/vnc/pulse.h

@@ -39,12 +39,18 @@
 #define __GUAC_VNC_PULSE_H
 
 /**
- * Read thread which transfers PCM data read from PulseAudio to the audio
- * encoder in use.
+ * Starts streaming audio from PulseAudio to the given Guacamole client.
  *
- * @param data Pointer to the active guac_client.
+ * @param client The client to stream data to.
  */
-void* guac_pa_read_audio(void* data);
+void guac_pa_start_stream(guac_client* client);
+
+/**
+ * Stops streaming audio from PulseAudio to the given Guacamole client.
+ *
+ * @param client The client to stream data to.
+ */
+void guac_pa_stop_stream(guac_client* client);
 
 #endif