Changeset 70318 in vbox

Timestamp:

Dec 22, 2017 1:21:02 PM (7 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

119915

Message:

Audio/DrvHostCoreAudio.cpp: Forward ported having the default audio queue configuration split up in more but smaller buffers (32).

File:

• trunk/src/VBox/Devices/Audio/DrvHostCoreAudio.cpp (modified) (4 diffs)

trunk/src/VBox/Devices/Audio/DrvHostCoreAudio.cpp

@@ -38 +38 @@
 #include <AudioToolbox/AudioConverter.h>
 #include <AudioToolbox/AudioToolbox.h>
+
+
+/* Audio Queue buffer configuration. */
+#define AQ_BUF_COUNT    32      /* Number of buffers. */
+#define AQ_BUF_SIZE     512     /* Size of each buffer in bytes. */
+#define AQ_BUF_TOTAL    (AQ_BUF_COUNT * AQ_BUF_SIZE)
+#define AQ_BUF_SAMPLES  (AQ_BUF_TOTAL / 4)  /* Hardcoded 4 bytes per sample! */
 
 /* Enables utilizing the Core Audio converter unit for converting
@@ -372 +379 @@
     AudioQueueRef               audioQueue;
     /** The audio buffers which are used with the above audio queue. */
-    AudioQueueBufferRef         audioBuffer[3];
+    AudioQueueBufferRef         audioBuffer[AQ_BUF_COUNT];
     /** The acquired (final) audio format for this stream. */
     AudioStreamBasicDescription asbdStream;
@@ -1296 +1303 @@
         return VERR_GENERAL_FAILURE; /** @todo Fudge! */
 
-    const size_t cbBufSize = _4K; /** @todo Make this configurable! */
+    const size_t cbBufSize = AQ_BUF_SIZE; /** @todo Make this configurable! */
 
     /*
@@ -2321 +2328 @@
             if (RT_SUCCESS(rc))
             {
-                pCfgAcq->cFrameBufferHint = _4K; /** @todo Make this configurable. */
+                pCfgAcq->cFrameBufferHint = AQ_BUF_SAMPLES; /** @todo Make this configurable. */
             }
             if (RT_SUCCESS(rc))