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This commit is contained in:
Volker Fischer 2010-01-03 16:01:43 +00:00
parent af7c8a92f3
commit 40485b8703
1 changed files with 5 additions and 4 deletions
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9
src/buffer.cpp
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@ -4,8 +4,8 @@
* Author(s): * Author(s):
* Volker Fischer * Volker Fischer
* *
* Note: we assuming here that put and get operations are secured by a mutex * Note: We are assuming here that put and get operations are secured by a mutex
* and do not take place at the same time * and accessing does not occur at the same time.
* *
****************************************************************************** ******************************************************************************
* *
@ -242,6 +242,7 @@ void CNetBuf::Clear ( const EClearType eClearType )
{ {
// Define the number of blocks bound for the "random offset" (1) algorithm. // Define the number of blocks bound for the "random offset" (1) algorithm.
// If we are above the bound, we use the "middle of buffer" (2) algorithm. // If we are above the bound, we use the "middle of buffer" (2) algorithm.
//
// Test results (with different jitter buffer sizes), given is the error // Test results (with different jitter buffer sizes), given is the error
// probability of jitter buffer (probability of corrections in the buffer): // probability of jitter buffer (probability of corrections in the buffer):
// kX, 128 samples, WLAN: // kX, 128 samples, WLAN:
@ -277,7 +278,7 @@ void CNetBuf::Clear ( const EClearType eClearType )
const int iNumBlocks = iMemSize / iBlockSize; const int iNumBlocks = iMemSize / iBlockSize;
if ( iNumBlocks <= iNumBlocksBoundInclForRandom ) // just for small buffers if ( iNumBlocks <= iNumBlocksBoundInclForRandom ) // just for small buffers
{ {
// random position algorithm // Random position algorithm.
// overwrite fill level with random value, the range // overwrite fill level with random value, the range
// is 0 to (iMemSize - iBlockSize) // is 0 to (iMemSize - iBlockSize)
iNewFillLevel = static_cast<int> ( static_cast<double> ( rand() ) * iNewFillLevel = static_cast<int> ( static_cast<double> ( rand() ) *
@ -285,7 +286,7 @@ void CNetBuf::Clear ( const EClearType eClearType )
} }
else else
{ {
// middle of buffer algorithm // Middle of buffer algorithm.
// with the following operation we set the fill level to a block // with the following operation we set the fill level to a block
// boundary (one block below the middle of the buffer in case of odd // boundary (one block below the middle of the buffer in case of odd
// number of blocks, e.g.: // number of blocks, e.g.: