shithub: openh264

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ref: 2f6a986d7c87372d3e297b2476721df4b5ae02e3
parent: dacd22d695152105dc9dc93776513247a27371dc
author: Martin Storsjö <martin@martin.st>
date: Fri Aug 8 18:26:59 EDT 2014

Remove a needless, no-op change of the number of threads

If kiCpuCores < 2, then iCountThreadsNum (and iMultipleThreadIdc)
can't be >= 2, because they're initialized with
WELS_MIN (kiCpuCores, ...) just a few lines above.

If iMultipleThreadIdc is initially set to 0 by the caller, this
removed piece of code would change it to 1, if kiCpuCores < 2.

When iMultipleThreadIdc is changed from the originally set value,
a call to WelsEncoderParamAdjust with the original parameters
would reset the whole codec since iMultipleThreadIdc differs.

This fixes running EncoderInterfaceTest.TemporalLayerSettingTest
on machines where the detected number of cores is 1.

--- a/codec/encoder/core/src/encoder_ext.cpp

+++ b/codec/encoder/core/src/encoder_ext.cpp

@@ -1862,14 +1862,6 @@

   pCodingParam->iCountThreadsNum				= WELS_MIN (kiCpuCores, iMaxSliceCount);

   pCodingParam->iMultipleThreadIdc	= pCodingParam->iCountThreadsNum;

-#ifndef WELS_TESTBED	// for product release and non-SGE testing

-

-  if (kiCpuCores < 2) {	// single CPU core, make no sense for MT parallelization

-    pCodingParam->iMultipleThreadIdc	= 1;

-    pCodingParam->iCountThreadsNum				= 1;

-  }

-#endif

-

   *pMaxSliceCount					= iMaxSliceCount;

   return 0;