c8d012fb32
When targeting 32-bit Linux, we need to pass -msse2 to gcc to compile SSE2 intrinsics. However, -msse2 also gives gcc license to automatically generate SSE2 instructions wherever it pleases. This will crash our code on processors without SSE2 support. This change breaks the files with SSE2 intrinsics into separate targets, such that we can limit the scope of -msse2 to where it's needed. We no longer need to employ the WEBRTC_USE_SSE2 define; the build system decides when SSE2 is supported and compiles the appropriate files. TBR=bjornv@webrtc.org TEST=audioproc (performance testing), audioproc_unittest, video_processing_unittests, build on Linux (targeting ia32/x64, with disable_sse2==0/1), Mac, Windows Review URL: http://webrtc-codereview.appspot.com/352008 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1425 4adac7df-926f-26a2-2b94-8c16560cd09d
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPM_CONTENT_ANALYSIS_H
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#define VPM_CONTENT_ANALYSIS_H
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#include "typedefs.h"
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#include "module_common_types.h"
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#include "video_processing_defines.h"
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namespace webrtc {
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class VPMContentAnalysis
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{
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public:
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// When |runtime_cpu_detection| is true, runtime selection of an optimized
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// code path is allowed.
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VPMContentAnalysis(bool runtime_cpu_detection);
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~VPMContentAnalysis();
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// Initialize ContentAnalysis - should be called prior to
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// extractContentFeature
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// Inputs: width, height
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// Return value: 0 if OK, negative value upon error
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WebRtc_Word32 Initialize(WebRtc_UWord16 width, WebRtc_UWord16 height);
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// Extract content Feature - main function of ContentAnalysis
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// Input: new frame
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// Return value: pointer to structure containing content Analysis
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// metrics or NULL value upon error
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VideoContentMetrics* ComputeContentMetrics(const VideoFrame* inputFrame);
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// Release all allocated memory
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// Output: 0 if OK, negative value upon error
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WebRtc_Word32 Release();
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private:
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// return motion metrics
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VideoContentMetrics* ContentMetrics();
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// Normalized temporal difference metric: for motion magnitude
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typedef WebRtc_Word32 (VPMContentAnalysis::*TemporalDiffMetricFunc)();
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TemporalDiffMetricFunc TemporalDiffMetric;
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WebRtc_Word32 TemporalDiffMetric_C();
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// Motion metric method: call 2 metrics (magnitude and size)
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WebRtc_Word32 ComputeMotionMetrics();
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// Spatial metric method: computes the 3 frame-average spatial
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// prediction errors (1x2,2x1,2x2)
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typedef WebRtc_Word32 (VPMContentAnalysis::*ComputeSpatialMetricsFunc)();
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ComputeSpatialMetricsFunc ComputeSpatialMetrics;
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WebRtc_Word32 ComputeSpatialMetrics_C();
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#if defined(WEBRTC_ARCH_X86_FAMILY)
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WebRtc_Word32 ComputeSpatialMetrics_SSE2();
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WebRtc_Word32 TemporalDiffMetric_SSE2();
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#endif
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const WebRtc_UWord8* _origFrame;
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WebRtc_UWord8* _prevFrame;
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WebRtc_UWord16 _width;
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WebRtc_UWord16 _height;
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WebRtc_UWord32 _skipNum;
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WebRtc_Word32 _border;
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// Content Metrics:
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// stores the local average of the metrics
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float _motionMagnitudeNZ; // motion class
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float _spatialPredErr; // spatial class
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float _spatialPredErrH; // spatial class
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float _spatialPredErrV; // spatial class
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float _sizeZeroMotion; // motion class
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float _motionPredErr; // complexity class:
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float _motionHorizontalness; // coherence class
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float _motionClusterDistortion; // coherence class
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bool _firstFrame;
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bool _CAInit;
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VideoContentMetrics* _cMetrics;
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}; // end of VPMContentAnalysis class definition
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} // namespace
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#endif
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