[soundflower] r114 committed - debug posts to help see what is happening regarding buffer reads/write...

[sound...@googlecode.com]

Revision: 114
Author: t...@electrotap.com
Date: Fri Mar 12 10:31:06 2010
Log: debug posts to help see what is happening regarding buffer reads/writes
http://code.google.com/p/soundflower/source/detail?r=114

Modified:
/trunk/Source/SoundflowerEngine.cpp
/trunk/Source/SoundflowerEngine.h

=======================================
--- /trunk/Source/SoundflowerEngine.cpp Fri Mar 12 10:30:58 2010
+++ /trunk/Source/SoundflowerEngine.cpp Fri Mar 12 10:31:06 2010
@@ -71,6 +71,7 @@

inputStream = outputStream = NULL;
duringHardwareInit = FALSE;
+ mLastValidSampleFrame = 0;
result = true;

Done:
@@ -538,9 +539,28 @@
UInt32 byteOffset = offset * sizeof(float);
UInt32 numBytes = numSampleFrames * channelCount * sizeof(float);
SoundflowerDevice* device = (SoundflowerDevice*)audioDevice;
-
- //IOLog("SoundflowerEngine[%p]::clipOutputSamples() -- channelCount:%u
\n", this, (uint)channelCount);
-
+
+#if 0
+ IOLog("SoundflowerEngine[%p]::clipOutputSamples() -- channelCount:%u \n",
this, (uint)channelCount);
+ IOLog(" input -- numChannels: %u",
(uint)inputStream->format.fNumChannels);
+ IOLog(" bitDepth: %u", (uint)inputStream->format.fBitDepth);
+ IOLog(" bitWidth: %u", (uint)inputStream->format.fBitWidth);
+ IOLog(" \n");
+ IOLog(" output -- numChannels: %u",
(uint)inputStream->format.fNumChannels);
+ IOLog(" bitDepth: %u", (uint)inputStream->format.fBitDepth);
+ IOLog(" bitWidth: %u", (uint)inputStream->format.fBitWidth);
+ IOLog(" \n");
+#endif
+
+#if 0
+ IOLog("INPUT: firstSampleFrame: %u numSampleFrames: %u \n",
(uint)firstSampleFrame, (uint)numSampleFrames);
+#endif
+ mLastValidSampleFrame = firstSampleFrame+numSampleFrames;
+
+// TODO: where is the sampleFrame wrapped?
+// TODO: try to put a mutex around reading and writing
+// TODO: why is the reading always trailing by at least 512 frames? (when
512 is the input framesize)?
+
if (device->mMuteIn[0]) {
memset((UInt8 *)thruBuffer + byteOffset, 0, numBytes);
}
@@ -576,7 +596,11 @@
UInt32 offset = firstSampleFrame * frameSize;
SoundflowerDevice* device = (SoundflowerDevice*)audioDevice;

+#if 0
//IOLog("SoundflowerEngine[%p]::convertInputSamples() -- channelCount:%u
\n", this, (uint)streamFormat->fNumChannels);
+ IOLog("OUTPUT: firstSampleFrame: %u numSampleFrames: %u \n",
(uint)firstSampleFrame, (uint)numSampleFrames);
+ IOLog(" mLastValidSampleFrame: %u (diff: %ld) \n",
(uint)mLastValidSampleFrame, long(mLastValidSampleFrame) -
long(firstSampleFrame+numSampleFrames));
+#endif

if (device->mMuteOut[0])
memset((UInt8 *)destBuf, 0, numSampleFrames * frameSize);
=======================================
--- /trunk/Source/SoundflowerEngine.h Fri Mar 12 10:30:21 2010
+++ /trunk/Source/SoundflowerEngine.h Fri Mar 12 10:31:06 2010
@@ -39,6 +39,7 @@

void* outputBuffer;
void* inputBuffer;
+ UInt32 mLastValidSampleFrame;

UInt32 thruBufferSize;
float* thruBuffer; // intermediate buffer to pass in-->out