Changeset 62364 in vbox

Timestamp:

Jul 20, 2016 3:51:47 PM (8 years ago)

Author:

vboxsync

Message:

Audio/AudioMixBuffer: Comments, logging.

File:

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

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

@@ -19 +19 @@
 #include <VBox/log.h>
 
-#ifdef DEBUG_andy
+#if 0
 /*
  * AUDIOMIXBUF_DEBUG_DUMP_PCM_DATA enables dumping the raw PCM data
@@ -924 +924 @@
 
 /**
- * Returns number of available live samples.
+ * Returns number of available live samples, that is, samples that
+ * have been written into the mixing buffer but not have been processed yet.
+ *
+ * For a parent buffer, this simply returns the currently used number of samples
+ * in the buffer.
+ *
+ * For a child buffer, this returns the number of samples which have been mixed
+ * to the parent and were not processed by the parent yet.
  *
  * @return  uint32_t                Number of live samples available.
@@ -933 +940 @@
     AssertPtrReturn(pMixBuf, 0);
 
-    uint32_t cSamples, cAvail;
+#ifdef DEBUG
+    uint32_t cSamples;
+#endif
+    uint32_t cAvail;
     if (pMixBuf->pParent) /* Is this a child buffer? */
     {
+#ifdef DEBUG
         /* Use the sample count from the parent, as
          * pMixBuf->cMixed specifies the sample count
          * in parent samples. */
         cSamples = pMixBuf->pParent->cSamples;
+#endif
         cAvail   = pMixBuf->cMixed;
     }
     else
     {
+#ifdef DEBUG
         cSamples = pMixBuf->cSamples;
+#endif
         cAvail   = pMixBuf->cUsed;
     }
@@ -1844 +1858 @@
     convOpts.From.Volume.uRight = pMixBuf->Volume.uRight;
 
-    LogFlowFunc(("ASDF %RU32 %RU32\n", pMixBuf->Volume.uLeft, pMixBuf->Volume.uRight));
-
     /* Anything to do at all? */
     if (cLenDst1)