Changeset 89525 in vbox for trunk/src/VBox/ValidationKit

Timestamp:

Jun 6, 2021 10:38:43 PM (4 years ago)

Author:

vboxsync

Message:

ValKit/AudioTest: Adjusted play pacing code to skip the pre-buffered amount, otherwise we'll be in constant underruns. bugref:10008

File:

• trunk/src/VBox/ValidationKit/utils/audio/vkat.cpp (modified) (2 diffs)

trunk/src/VBox/ValidationKit/utils/audio/vkat.cpp

@@ -1814 +1814 @@
                                         PCPDMAUDIOSTREAMCFG pCfgAcq, const char *pszFile)
 {
-    uint32_t const  cbPreBuffer = PDMAudioPropsFramesToBytes(pMix->pProps, pCfgAcq->Backend.cFramesPreBuffering);
-    uint64_t const  nsStarted   = RTTimeNanoTS();
+    uint32_t const  cbPreBuffer        = PDMAudioPropsFramesToBytes(pMix->pProps, pCfgAcq->Backend.cFramesPreBuffering);
+    uint64_t const  nsStarted          = RTTimeNanoTS();
+    uint64_t        nsDonePreBuffering = 0;
 
     /*
@@ -1833 +1834 @@
             if (offStream >= cbPreBuffer)
             {
-                uint64_t const cNsWritten = PDMAudioPropsBytesToNano64(pMix->pProps, offStream);
+                if (!nsDonePreBuffering)
+                    nsDonePreBuffering = RTTimeNanoTS();
+                uint64_t const cNsWritten = PDMAudioPropsBytesToNano64(pMix->pProps, offStream - cbPreBuffer);
                 uint64_t const cNsElapsed = RTTimeNanoTS() - nsStarted;
                 if (cNsWritten > cNsElapsed + RT_NS_10MS)