diff options
author | andrew@webrtc.org <andrew@webrtc.org@4adac7df-926f-26a2-2b94-8c16560cd09d> | 2012-10-22 18:19:23 +0000 |
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committer | andrew@webrtc.org <andrew@webrtc.org@4adac7df-926f-26a2-2b94-8c16560cd09d> | 2012-10-22 18:19:23 +0000 |
commit | b015cbede88899f67a53fbbe581b02ce8e327949 (patch) | |
tree | 530a64a3cfdbbabacab974c183326517d49e761e /modules/video_processing/main | |
download | webrtc-b015cbede88899f67a53fbbe581b02ce8e327949.tar.gz |
Move src/ -> webrtc/
TBR=niklas.enbom@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/915006
git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@2963 4adac7df-926f-26a2-2b94-8c16560cd09d
Diffstat (limited to 'modules/video_processing/main')
38 files changed, 5025 insertions, 0 deletions
diff --git a/modules/video_processing/main/OWNERS b/modules/video_processing/main/OWNERS new file mode 100644 index 00000000..7183cf21 --- /dev/null +++ b/modules/video_processing/main/OWNERS @@ -0,0 +1,4 @@ +stefan@webrtc.org +mikhal@webrtc.org +marpan@webrtc.org +henrik.lundin@webrtc.org diff --git a/modules/video_processing/main/interface/video_processing.h b/modules/video_processing/main/interface/video_processing.h new file mode 100644 index 00000000..8008b035 --- /dev/null +++ b/modules/video_processing/main/interface/video_processing.h @@ -0,0 +1,303 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * video_processing.h + * This header file contains the API required for the video + * processing module class. + */ + + +#ifndef WEBRTC_MODULES_INTERFACE_VIDEO_PROCESSING_H +#define WEBRTC_MODULES_INTERFACE_VIDEO_PROCESSING_H + +#include "module.h" +#include "module_common_types.h" +#include "video_processing_defines.h" + +/** + The module is largely intended to process video streams, except functionality + provided by static functions which operate independent of previous frames. It + is recommended, but not required that a unique instance be used for each + concurrently processed stream. Similarly, it is recommended to call Reset() + before switching to a new stream, but this is not absolutely required. + + The module provides basic thread safety by permitting only a single function + to execute concurrently. +*/ + +namespace webrtc { + +class VideoProcessingModule : public Module +{ +public: + /** + Structure to hold frame statistics. Populate it with GetFrameStats(). + */ + struct FrameStats + { + FrameStats() : + mean(0), + sum(0), + numPixels(0), + subSamplWidth(0), + subSamplHeight(0) + { + memset(hist, 0, sizeof(hist)); + } + + WebRtc_UWord32 hist[256]; /**< Histogram of frame */ + WebRtc_UWord32 mean; /**< Mean value of frame */ + WebRtc_UWord32 sum; /**< Sum of frame */ + WebRtc_UWord32 numPixels; /**< Number of pixels */ + WebRtc_UWord8 subSamplWidth; /**< Subsampling rate of width in powers + of 2 */ + WebRtc_UWord8 subSamplHeight; /**< Subsampling rate of height in powers + of 2 */ + }; + + /** + Specifies the warning types returned by BrightnessDetection(). + */ + enum BrightnessWarning + { + kNoWarning, /**< Frame has acceptable brightness */ + kDarkWarning, /**< Frame is too dark */ + kBrightWarning /**< Frame is too bright */ + }; + + /* + Creates a VPM object. + + \param[in] id + Unique identifier of this object. + + \return Pointer to a VPM object. + */ + static VideoProcessingModule* Create(WebRtc_Word32 id); + + /** + Destroys a VPM object. + + \param[in] module + Pointer to the VPM object to destroy. + */ + static void Destroy(VideoProcessingModule* module); + + /** + Not supported. + */ + virtual WebRtc_Word32 TimeUntilNextProcess() { return -1; } + + /** + Not supported. + */ + virtual WebRtc_Word32 Process() { return -1; } + + /** + Resets all processing components to their initial states. This should be + called whenever a new video stream is started. + */ + virtual void Reset() = 0; + + /** + Retrieves statistics for the input frame. This function must be used to + prepare a FrameStats struct for use in certain VPM functions. + + \param[out] stats + The frame statistics will be stored here on return. + + \param[in] frame + Reference to the video frame. + + \return 0 on success, -1 on failure. + */ + static WebRtc_Word32 GetFrameStats(FrameStats* stats, + const VideoFrame& frame); + + /** + Checks the validity of a FrameStats struct. Currently, valid implies only + that is had changed from its initialized state. + + \param[in] stats + Frame statistics. + + \return True on valid stats, false on invalid stats. + */ + static bool ValidFrameStats(const FrameStats& stats); + + /** + Returns a FrameStats struct to its intialized state. + + \param[in,out] stats + Frame statistics. + */ + static void ClearFrameStats(FrameStats* stats); + + /** + Enhances the color of an image through a constant mapping. Only the + chrominance is altered. Has a fixed-point implementation. + + \param[in,out] frame + Pointer to the video frame. + */ + static WebRtc_Word32 ColorEnhancement(VideoFrame* frame); + + /** + Increases/decreases the luminance value. + + \param[in,out] frame + Pointer to the video frame. + + \param[in] delta + The amount to change the chrominance value of every single pixel. + Can be < 0 also. + + \return 0 on success, -1 on failure. + */ + static WebRtc_Word32 Brighten(VideoFrame* frame, int delta); + + /** + Detects and removes camera flicker from a video stream. Every frame from + the stream must be passed in. A frame will only be altered if flicker has + been detected. Has a fixed-point implementation. + + \param[in,out] frame + Pointer to the video frame. + + \param[in,out] stats + Frame statistics provided by GetFrameStats(). On return the stats will + be reset to zero if the frame was altered. Call GetFrameStats() again + if the statistics for the altered frame are required. + + \return 0 on success, -1 on failure. + */ + virtual WebRtc_Word32 Deflickering(VideoFrame* frame, + FrameStats* stats) = 0; + + /** + Denoises a video frame. Every frame from the stream should be passed in. + Has a fixed-point implementation. + + \param[in,out] frame + Pointer to the video frame. + + \return The number of modified pixels on success, -1 on failure. + */ + virtual WebRtc_Word32 Denoising(VideoFrame* frame) = 0; + + /** + Detects if a video frame is excessively bright or dark. Returns a + warning if this is the case. Multiple frames should be passed in before + expecting a warning. Has a floating-point implementation. + + \param[in] frame + Pointer to the video frame. + + \param[in] stats + Frame statistics provided by GetFrameStats(). + + \return A member of BrightnessWarning on success, -1 on error + */ + virtual WebRtc_Word32 BrightnessDetection(const VideoFrame& frame, + const FrameStats& stats) = 0; + + /** + The following functions refer to the pre-processor unit within VPM. The + pre-processor perfoms spatial/temporal decimation and content analysis on + the frames prior to encoding. + */ + + /** + Enable/disable temporal decimation + + \param[in] enable when true, temporal decimation is enabled + */ + virtual void EnableTemporalDecimation(bool enable) = 0; + + /** + Set target resolution + + \param[in] width + Target width + + \param[in] height + Target height + + \param[in] frameRate + Target frameRate + + \return VPM_OK on success, a negative value on error (see error codes) + + */ + virtual WebRtc_Word32 SetTargetResolution(WebRtc_UWord32 width, + WebRtc_UWord32 height, + WebRtc_UWord32 frameRate) = 0; + + /** + Set max frame rate + \param[in] maxFrameRate: maximum frame rate (limited to native frame rate) + + \return VPM_OK on success, a negative value on error (see error codes) + */ + virtual WebRtc_Word32 SetMaxFrameRate(WebRtc_UWord32 maxFrameRate) = 0; + + /** + Get decimated(target) frame rate + */ + virtual WebRtc_UWord32 DecimatedFrameRate() = 0; + + /** + Get decimated(target) frame width + */ + virtual WebRtc_UWord32 DecimatedWidth() const = 0; + + /** + Get decimated(target) frame height + */ + virtual WebRtc_UWord32 DecimatedHeight() const = 0 ; + + /** + Set the spatial resampling settings of the VPM: The resampler may either be disabled or one of the following: + scaling to a close to target dimension followed by crop/pad + + \param[in] resamplingMode + Set resampling mode (a member of VideoFrameResampling) + */ + virtual void SetInputFrameResampleMode(VideoFrameResampling + resamplingMode) = 0; + + /** + Get Processed (decimated) frame + + \param[in] frame pointer to the video frame. + + \param[in] processedFrame pointer (double) to the processed frame + + \return VPM_OK on success, a negative value on error (see error codes) + */ + virtual WebRtc_Word32 PreprocessFrame(const VideoFrame& frame, + VideoFrame** processedFrame) = 0; + + /** + Return content metrics for the last processed frame + */ + virtual VideoContentMetrics* ContentMetrics() const = 0 ; + + /** + Enable content analysis + */ + virtual void EnableContentAnalysis(bool enable) = 0; + +}; + +} //namespace + +#endif diff --git a/modules/video_processing/main/interface/video_processing_defines.h b/modules/video_processing/main/interface/video_processing_defines.h new file mode 100644 index 00000000..d9bebd4c --- /dev/null +++ b/modules/video_processing/main/interface/video_processing_defines.h @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * video_processing_defines.h + * This header file includes the definitions used in the video processor module + */ + +#ifndef WEBRTC_MODULES_INTERFACE_VIDEO_PROCESSING_DEFINES_H +#define WEBRTC_MODULES_INTERFACE_VIDEO_PROCESSING_DEFINES_H + +#include "typedefs.h" + +namespace webrtc { + +// Error codes +#define VPM_OK 0 +#define VPM_GENERAL_ERROR -1 +#define VPM_MEMORY -2 +#define VPM_PARAMETER_ERROR -3 +#define VPM_SCALE_ERROR -4 +#define VPM_UNINITIALIZED -5 +#define VPM_UNIMPLEMENTED -6 + +enum VideoFrameResampling +{ + // TODO: Do we still need crop/pad? + kNoRescaling, // disables rescaling + kFastRescaling, // point + kBiLinear, // bi-linear interpolation + kBox, // Box inteprolation +}; + +} //namespace + +#endif diff --git a/modules/video_processing/main/source/Android.mk b/modules/video_processing/main/source/Android.mk new file mode 100644 index 00000000..829fa960 --- /dev/null +++ b/modules/video_processing/main/source/Android.mk @@ -0,0 +1,59 @@ +# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. +# +# Use of this source code is governed by a BSD-style license +# that can be found in the LICENSE file in the root of the source +# tree. An additional intellectual property rights grant can be found +# in the file PATENTS. All contributing project authors may +# be found in the AUTHORS file in the root of the source tree. + +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +include $(LOCAL_PATH)/../../../../../android-webrtc.mk + +LOCAL_ARM_MODE := arm +LOCAL_MODULE_CLASS := STATIC_LIBRARIES +LOCAL_MODULE := libwebrtc_video_processing +LOCAL_MODULE_TAGS := optional +LOCAL_CPP_EXTENSION := .cc +LOCAL_SRC_FILES := \ + brighten.cc \ + brightness_detection.cc \ + color_enhancement.cc \ + content_analysis.cc \ + deflickering.cc \ + denoising.cc \ + frame_preprocessor.cc \ + spatial_resampler.cc \ + video_decimator.cc \ + video_processing_impl.cc + +ifeq ($(TARGET_ARCH),x86) +LOCAL_SRC_FILES += \ + content_analysis_sse2.cc +endif + +# Flags passed to both C and C++ files. +LOCAL_CFLAGS := \ + $(MY_WEBRTC_COMMON_DEFS) + +LOCAL_C_INCLUDES := \ + $(LOCAL_PATH)/../interface \ + $(LOCAL_PATH)/../../../.. \ + $(LOCAL_PATH)/../../../interface \ + $(LOCAL_PATH)/../../../audio_coding/main/interface \ + $(LOCAL_PATH)/../../../utility/interface \ + $(LOCAL_PATH)/../../../../common_audio/signal_processing/include \ + $(LOCAL_PATH)/../../../../common_video/vplib/main/interface \ + $(LOCAL_PATH)/../../../../system_wrappers/interface + +LOCAL_SHARED_LIBRARIES := \ + libcutils \ + libdl \ + libstlport + +ifndef NDK_ROOT +include external/stlport/libstlport.mk +endif +include $(BUILD_STATIC_LIBRARY) diff --git a/modules/video_processing/main/source/brighten.cc b/modules/video_processing/main/source/brighten.cc new file mode 100644 index 00000000..68b0c252 --- /dev/null +++ b/modules/video_processing/main/source/brighten.cc @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "modules/video_processing/main/source/brighten.h" + +#include <cstdlib> + +#include "system_wrappers/interface/trace.h" + +namespace webrtc { +namespace VideoProcessing { + +WebRtc_Word32 Brighten(VideoFrame* frame, int delta) { + assert(frame); + if (frame->Buffer() == NULL) { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, -1, + "Null frame pointer"); + return VPM_PARAMETER_ERROR; + } + + if (frame->Width() <= 0 || frame->Height() <= 0) { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, -1, + "Invalid frame size"); + return VPM_PARAMETER_ERROR; + } + + int numPixels = frame->Width() * frame->Height(); + + int lookUp[256]; + for (int i = 0; i < 256; i++) { + int val = i + delta; + lookUp[i] = ((((val < 0) ? 0 : val) > 255) ? 255 : val); + } + + WebRtc_UWord8* tempPtr = frame->Buffer(); + + for (int i = 0; i < numPixels; i++) { + *tempPtr = static_cast<WebRtc_UWord8>(lookUp[*tempPtr]); + tempPtr++; + } + return VPM_OK; +} + +} // namespace VideoProcessing +} // namespace webrtc diff --git a/modules/video_processing/main/source/brighten.h b/modules/video_processing/main/source/brighten.h new file mode 100644 index 00000000..319cc6f5 --- /dev/null +++ b/modules/video_processing/main/source/brighten.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef MODULES_VIDEO_PROCESSING_MAIN_SOURCE_BRIGHTEN_H_ +#define MODULES_VIDEO_PROCESSING_MAIN_SOURCE_BRIGHTEN_H_ + +#include "typedefs.h" +#include "modules/video_processing/main/interface/video_processing.h" + +namespace webrtc { +namespace VideoProcessing { + +WebRtc_Word32 Brighten(VideoFrame* frame, int delta); + +} // namespace VideoProcessing +} // namespace webrtc + +#endif // MODULES_VIDEO_PROCESSING_MAIN_SOURCE_BRIGHTEN_H_ diff --git a/modules/video_processing/main/source/brightness_detection.cc b/modules/video_processing/main/source/brightness_detection.cc new file mode 100644 index 00000000..07ca7e7c --- /dev/null +++ b/modules/video_processing/main/source/brightness_detection.cc @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "video_processing.h" +#include "brightness_detection.h" +#include "trace.h" + +#include <math.h> + +namespace webrtc { + +VPMBrightnessDetection::VPMBrightnessDetection() : + _id(0) +{ + Reset(); +} + +VPMBrightnessDetection::~VPMBrightnessDetection() +{ +} + +WebRtc_Word32 +VPMBrightnessDetection::ChangeUniqueId(const WebRtc_Word32 id) +{ + _id = id; + return VPM_OK; +} + +void +VPMBrightnessDetection::Reset() +{ + _frameCntBright = 0; + _frameCntDark = 0; +} + +WebRtc_Word32 +VPMBrightnessDetection::ProcessFrame(const VideoFrame& frame, + const VideoProcessingModule::FrameStats& + stats) +{ + if (frame.Buffer() == NULL) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Null frame pointer"); + return VPM_PARAMETER_ERROR; + } + int width = frame.Width(); + int height = frame.Height(); + + if (width == 0 || height == 0) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Invalid frame size"); + return VPM_PARAMETER_ERROR; + } + + if (!VideoProcessingModule::ValidFrameStats(stats)) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Invalid frame stats"); + return VPM_PARAMETER_ERROR; + } + + const WebRtc_UWord8 frameCntAlarm = 2; + + // Get proportion in lowest bins + WebRtc_UWord8 lowTh = 20; + float propLow = 0; + for (WebRtc_UWord32 i = 0; i < lowTh; i++) + { + propLow += stats.hist[i]; + } + propLow /= stats.numPixels; + + // Get proportion in highest bins + unsigned char highTh = 230; + float propHigh = 0; + for (WebRtc_UWord32 i = highTh; i < 256; i++) + { + propHigh += stats.hist[i]; + } + propHigh /= stats.numPixels; + + if(propHigh < 0.4) + { + if (stats.mean < 90 || stats.mean > 170) + { + // Standard deviation of Y + float stdY = 0; + uint8_t* buffer = frame.Buffer(); + for (int h = 0; h < height; h += (1 << stats.subSamplHeight)) + { + WebRtc_UWord32 row = h*width; + for (int w = 0; w < width; w += (1 << stats.subSamplWidth)) + { + stdY += (buffer[w + row] - stats.mean) * (buffer[w + row] - + stats.mean); + } + } + stdY = sqrt(stdY / stats.numPixels); + + // Get percentiles + WebRtc_UWord32 sum = 0; + WebRtc_UWord32 medianY = 140; + WebRtc_UWord32 perc05 = 0; + WebRtc_UWord32 perc95 = 255; + float posPerc05 = stats.numPixels * 0.05f; + float posMedian = stats.numPixels * 0.5f; + float posPerc95 = stats.numPixels * 0.95f; + for (WebRtc_UWord32 i = 0; i < 256; i++) + { + sum += stats.hist[i]; + + if (sum < posPerc05) + { + perc05 = i; // 5th perc + } + if (sum < posMedian) + { + medianY = i; // 50th perc + } + if (sum < posPerc95) + { + perc95 = i; // 95th perc + } + else + { + break; + } + } + + // Check if image is too dark + if ((stdY < 55) && (perc05 < 50)) + { + if (medianY < 60 || stats.mean < 80 || perc95 < 130 || + propLow > 0.20) + { + _frameCntDark++; + } + else + { + _frameCntDark = 0; + } + } + else + { + _frameCntDark = 0; + } + + // Check if image is too bright + if ((stdY < 52) && (perc95 > 200) && (medianY > 160)) + { + if (medianY > 185 || stats.mean > 185 || perc05 > 140 || + propHigh > 0.25) + { + _frameCntBright++; + } + else + { + _frameCntBright = 0; + } + } + else + { + _frameCntBright = 0; + } + + } + else + { + _frameCntDark = 0; + _frameCntBright = 0; + } + + } + else + { + _frameCntBright++; + _frameCntDark = 0; + } + + if (_frameCntDark > frameCntAlarm) + { + return VideoProcessingModule::kDarkWarning; + } + else if (_frameCntBright > frameCntAlarm) + { + return VideoProcessingModule::kBrightWarning; + } + else + { + return VideoProcessingModule::kNoWarning; + } +} + +} //namespace diff --git a/modules/video_processing/main/source/brightness_detection.h b/modules/video_processing/main/source/brightness_detection.h new file mode 100644 index 00000000..63f48169 --- /dev/null +++ b/modules/video_processing/main/source/brightness_detection.h @@ -0,0 +1,44 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * brightness_detection.h + */ +#ifndef VPM_BRIGHTNESS_DETECTION_H +#define VPM_BRIGHTNESS_DETECTION_H + +#include "typedefs.h" +#include "video_processing.h" + +namespace webrtc { + +class VPMBrightnessDetection +{ +public: + VPMBrightnessDetection(); + ~VPMBrightnessDetection(); + + WebRtc_Word32 ChangeUniqueId(WebRtc_Word32 id); + + void Reset(); + + WebRtc_Word32 ProcessFrame(const VideoFrame& frame, + const VideoProcessingModule::FrameStats& stats); + +private: + WebRtc_Word32 _id; + + WebRtc_UWord32 _frameCntBright; + WebRtc_UWord32 _frameCntDark; +}; + +} //namespace + +#endif // VPM_BRIGHTNESS_DETECTION_H diff --git a/modules/video_processing/main/source/color_enhancement.cc b/modules/video_processing/main/source/color_enhancement.cc new file mode 100644 index 00000000..2cc39d32 --- /dev/null +++ b/modules/video_processing/main/source/color_enhancement.cc @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "color_enhancement.h" +#include "color_enhancement_private.h" +#include "trace.h" +#include <cstdlib> // NULL + +namespace webrtc { + +namespace VideoProcessing +{ + WebRtc_Word32 + ColorEnhancement(VideoFrame* frame) + { + assert(frame); + // pointers to U and V color pixels + WebRtc_UWord8* ptrU; + WebRtc_UWord8* ptrV; + WebRtc_UWord8 tempChroma; + const unsigned int size_y = frame->Width() * frame->Height(); + const unsigned int size_uv = ((frame->Width() + 1) / 2) * + ((frame->Height() + 1 ) / 2); + + + if (frame->Buffer() == NULL) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, + -1, "Null frame pointer"); + return VPM_GENERAL_ERROR; + } + + if (frame->Width() == 0 || frame->Height() == 0) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, + -1, "Invalid frame size"); + return VPM_GENERAL_ERROR; + } + + // set pointers to first U and V pixels (skip luminance) + ptrU = frame->Buffer() + size_y; + ptrV = ptrU + size_uv; + + // loop through all chrominance pixels and modify color + for (unsigned int ix = 0; ix < size_uv; ix++) + { + tempChroma = colorTable[*ptrU][*ptrV]; + *ptrV = colorTable[*ptrV][*ptrU]; + *ptrU = tempChroma; + + // increment pointers + ptrU++; + ptrV++; + } + return VPM_OK; + } + +} //namespace + +} //namespace webrtc diff --git a/modules/video_processing/main/source/color_enhancement.h b/modules/video_processing/main/source/color_enhancement.h new file mode 100644 index 00000000..33846576 --- /dev/null +++ b/modules/video_processing/main/source/color_enhancement.h @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * color_enhancement.h + */ +#ifndef VPM_COLOR_ENHANCEMENT_H +#define VPM_COLOR_ENHANCEMENT_H + +#include "typedefs.h" +#include "video_processing.h" + +namespace webrtc { + +namespace VideoProcessing +{ + WebRtc_Word32 ColorEnhancement(VideoFrame* frame); +} + +} //namespace + +#endif // VPM_COLOR_ENHANCEMENT_H diff --git a/modules/video_processing/main/source/color_enhancement_private.h b/modules/video_processing/main/source/color_enhancement_private.h new file mode 100644 index 00000000..b88fc1a9 --- /dev/null +++ b/modules/video_processing/main/source/color_enhancement_private.h @@ -0,0 +1,273 @@ +#ifndef VPM_COLOR_ENHANCEMENT_PRIVATE_H +#define VPM_COLOR_ENHANCEMENT_PRIVATE_H + +#include "typedefs.h" + +namespace webrtc { + +//Table created with Matlab script createTable.m +//Usage: +// Umod=colorTable[U][V] +// Vmod=colorTable[V][U] +static const WebRtc_UWord8 colorTable[256][256] = { + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, + {2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249}, + {250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250}, + {251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251}, + {252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252}, + {253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253}, + {254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254}, + {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255} +}; + +} //namespace + +#endif // VPM_COLOR_ENHANCEMENT_PRIVATE_H diff --git a/modules/video_processing/main/source/content_analysis.cc b/modules/video_processing/main/source/content_analysis.cc new file mode 100644 index 00000000..77cdcd42 --- /dev/null +++ b/modules/video_processing/main/source/content_analysis.cc @@ -0,0 +1,337 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ +#include "content_analysis.h" +#include "tick_util.h" +#include "system_wrappers/interface/cpu_features_wrapper.h" + +#include <math.h> +#include <stdlib.h> + +namespace webrtc { + +VPMContentAnalysis::VPMContentAnalysis(bool runtime_cpu_detection): +_origFrame(NULL), +_prevFrame(NULL), +_width(0), +_height(0), +_skipNum(1), +_border(8), +_motionMagnitude(0.0f), +_spatialPredErr(0.0f), +_spatialPredErrH(0.0f), +_spatialPredErrV(0.0f), +_firstFrame(true), +_CAInit(false), +_cMetrics(NULL) +{ + ComputeSpatialMetrics = &VPMContentAnalysis::ComputeSpatialMetrics_C; + TemporalDiffMetric = &VPMContentAnalysis::TemporalDiffMetric_C; + + if (runtime_cpu_detection) + { +#if defined(WEBRTC_ARCH_X86_FAMILY) + if (WebRtc_GetCPUInfo(kSSE2)) + { + ComputeSpatialMetrics = + &VPMContentAnalysis::ComputeSpatialMetrics_SSE2; + TemporalDiffMetric = &VPMContentAnalysis::TemporalDiffMetric_SSE2; + } +#endif + } + + Release(); +} + +VPMContentAnalysis::~VPMContentAnalysis() +{ + Release(); +} + + +VideoContentMetrics* +VPMContentAnalysis::ComputeContentMetrics(const VideoFrame& inputFrame) +{ + if (inputFrame.Buffer() == NULL) + { + return NULL; + } + + // Init if needed (native dimension change) + if (_width != static_cast<int>(inputFrame.Width()) || + _height != static_cast<int>(inputFrame.Height())) + { + if (VPM_OK != Initialize(static_cast<int>(inputFrame.Width()), + static_cast<int>(inputFrame.Height()))) + { + return NULL; + } + } + + _origFrame = inputFrame.Buffer(); + + // compute spatial metrics: 3 spatial prediction errors + (this->*ComputeSpatialMetrics)(); + + // compute motion metrics + if (_firstFrame == false) + ComputeMotionMetrics(); + + // saving current frame as previous one: Y only + memcpy(_prevFrame, _origFrame, _width * _height); + + _firstFrame = false; + _CAInit = true; + + return ContentMetrics(); +} + +WebRtc_Word32 +VPMContentAnalysis::Release() +{ + if (_cMetrics != NULL) + { + delete _cMetrics; + _cMetrics = NULL; + } + + if (_prevFrame != NULL) + { + delete [] _prevFrame; + _prevFrame = NULL; + } + + _width = 0; + _height = 0; + _firstFrame = true; + + return VPM_OK; +} + +WebRtc_Word32 +VPMContentAnalysis::Initialize(int width, int height) +{ + _width = width; + _height = height; + _firstFrame = true; + + // skip parameter: # of skipped rows: for complexity reduction + // temporal also currently uses it for column reduction. + _skipNum = 1; + + // use skipNum = 2 for 4CIF, WHD + if ( (_height >= 576) && (_width >= 704) ) + { + _skipNum = 2; + } + // use skipNum = 4 for FULLL_HD images + if ( (_height >= 1080) && (_width >= 1920) ) + { + _skipNum = 4; + } + + if (_cMetrics != NULL) + { + delete _cMetrics; + } + + if (_prevFrame != NULL) + { + delete [] _prevFrame; + } + + // Spatial Metrics don't work on a border of 8. Minimum processing + // block size is 16 pixels. So make sure the width and height support this. + if (_width <= 32 || _height <= 32) + { + _CAInit = false; + return VPM_PARAMETER_ERROR; + } + + _cMetrics = new VideoContentMetrics(); + if (_cMetrics == NULL) + { + return VPM_MEMORY; + } + + _prevFrame = new WebRtc_UWord8[_width * _height] ; // Y only + if (_prevFrame == NULL) + { + return VPM_MEMORY; + } + + return VPM_OK; +} + + +// Compute motion metrics: magnitude over non-zero motion vectors, +// and size of zero cluster +WebRtc_Word32 +VPMContentAnalysis::ComputeMotionMetrics() +{ + + // Motion metrics: only one is derived from normalized + // (MAD) temporal difference + (this->*TemporalDiffMetric)(); + + return VPM_OK; +} + +// Normalized temporal difference (MAD): used as a motion level metric +// Normalize MAD by spatial contrast: images with more contrast +// (pixel variance) likely have larger temporal difference +// To reduce complexity, we compute the metric for a reduced set of points. +WebRtc_Word32 +VPMContentAnalysis::TemporalDiffMetric_C() +{ + // size of original frame + int sizei = _height; + int sizej = _width; + + WebRtc_UWord32 tempDiffSum = 0; + WebRtc_UWord32 pixelSum = 0; + WebRtc_UWord64 pixelSqSum = 0; + + WebRtc_UWord32 numPixels = 0; // counter for # of pixels + + const int width_end = ((_width - 2*_border) & -16) + _border; + + for(int i = _border; i < sizei - _border; i += _skipNum) + { + for(int j = _border; j < width_end; j++) + { + numPixels += 1; + int ssn = i * sizej + j; + + WebRtc_UWord8 currPixel = _origFrame[ssn]; + WebRtc_UWord8 prevPixel = _prevFrame[ssn]; + + tempDiffSum += (WebRtc_UWord32) + abs((WebRtc_Word16)(currPixel - prevPixel)); + pixelSum += (WebRtc_UWord32) currPixel; + pixelSqSum += (WebRtc_UWord64) (currPixel * currPixel); + } + } + + // default + _motionMagnitude = 0.0f; + + if (tempDiffSum == 0) + { + return VPM_OK; + } + + // normalize over all pixels + float const tempDiffAvg = (float)tempDiffSum / (float)(numPixels); + float const pixelSumAvg = (float)pixelSum / (float)(numPixels); + float const pixelSqSumAvg = (float)pixelSqSum / (float)(numPixels); + float contrast = pixelSqSumAvg - (pixelSumAvg * pixelSumAvg); + + if (contrast > 0.0) + { + contrast = sqrt(contrast); + _motionMagnitude = tempDiffAvg/contrast; + } + + return VPM_OK; + +} + +// Compute spatial metrics: +// To reduce complexity, we compute the metric for a reduced set of points. +// The spatial metrics are rough estimates of the prediction error cost for +// each QM spatial mode: 2x2,1x2,2x1 +// The metrics are a simple estimate of the up-sampling prediction error, +// estimated assuming sub-sampling for decimation (no filtering), +// and up-sampling back up with simple bilinear interpolation. +WebRtc_Word32 +VPMContentAnalysis::ComputeSpatialMetrics_C() +{ + //size of original frame + const int sizei = _height; + const int sizej = _width; + + // pixel mean square average: used to normalize the spatial metrics + WebRtc_UWord32 pixelMSA = 0; + + WebRtc_UWord32 spatialErrSum = 0; + WebRtc_UWord32 spatialErrVSum = 0; + WebRtc_UWord32 spatialErrHSum = 0; + + // make sure work section is a multiple of 16 + const int width_end = ((sizej - 2*_border) & -16) + _border; + + for(int i = _border; i < sizei - _border; i += _skipNum) + { + for(int j = _border; j < width_end; j++) + { + + int ssn1= i * sizej + j; + int ssn2 = (i + 1) * sizej + j; // bottom + int ssn3 = (i - 1) * sizej + j; // top + int ssn4 = i * sizej + j + 1; // right + int ssn5 = i * sizej + j - 1; // left + + WebRtc_UWord16 refPixel1 = _origFrame[ssn1] << 1; + WebRtc_UWord16 refPixel2 = _origFrame[ssn1] << 2; + + WebRtc_UWord8 bottPixel = _origFrame[ssn2]; + WebRtc_UWord8 topPixel = _origFrame[ssn3]; + WebRtc_UWord8 rightPixel = _origFrame[ssn4]; + WebRtc_UWord8 leftPixel = _origFrame[ssn5]; + + spatialErrSum += (WebRtc_UWord32) abs((WebRtc_Word16)(refPixel2 + - (WebRtc_UWord16)(bottPixel + topPixel + + leftPixel + rightPixel))); + spatialErrVSum += (WebRtc_UWord32) abs((WebRtc_Word16)(refPixel1 + - (WebRtc_UWord16)(bottPixel + topPixel))); + spatialErrHSum += (WebRtc_UWord32) abs((WebRtc_Word16)(refPixel1 + - (WebRtc_UWord16)(leftPixel + rightPixel))); + + pixelMSA += _origFrame[ssn1]; + } + } + + // normalize over all pixels + const float spatialErr = (float)(spatialErrSum >> 2); + const float spatialErrH = (float)(spatialErrHSum >> 1); + const float spatialErrV = (float)(spatialErrVSum >> 1); + const float norm = (float)pixelMSA; + + // 2X2: + _spatialPredErr = spatialErr / norm; + + // 1X2: + _spatialPredErrH = spatialErrH / norm; + + // 2X1: + _spatialPredErrV = spatialErrV / norm; + + return VPM_OK; +} + +VideoContentMetrics* +VPMContentAnalysis::ContentMetrics() +{ + if (_CAInit == false) + { + return NULL; + } + + _cMetrics->spatial_pred_err = _spatialPredErr; + _cMetrics->spatial_pred_err_h = _spatialPredErrH; + _cMetrics->spatial_pred_err_v = _spatialPredErrV; + // Motion metric: normalized temporal difference (MAD) + _cMetrics->motion_magnitude = _motionMagnitude; + + return _cMetrics; + +} + +} // namespace diff --git a/modules/video_processing/main/source/content_analysis.h b/modules/video_processing/main/source/content_analysis.h new file mode 100644 index 00000000..6724af51 --- /dev/null +++ b/modules/video_processing/main/source/content_analysis.h @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef VPM_CONTENT_ANALYSIS_H +#define VPM_CONTENT_ANALYSIS_H + +#include "typedefs.h" +#include "module_common_types.h" +#include "video_processing_defines.h" + +namespace webrtc { + +class VPMContentAnalysis +{ +public: + // When |runtime_cpu_detection| is true, runtime selection of an optimized + // code path is allowed. + VPMContentAnalysis(bool runtime_cpu_detection); + ~VPMContentAnalysis(); + + // Initialize ContentAnalysis - should be called prior to + // extractContentFeature + // Inputs: width, height + // Return value: 0 if OK, negative value upon error + WebRtc_Word32 Initialize(int width, int height); + + // Extract content Feature - main function of ContentAnalysis + // Input: new frame + // Return value: pointer to structure containing content Analysis + // metrics or NULL value upon error + VideoContentMetrics* ComputeContentMetrics(const VideoFrame& inputFrame); + + // Release all allocated memory + // Output: 0 if OK, negative value upon error + WebRtc_Word32 Release(); + +private: + + // return motion metrics + VideoContentMetrics* ContentMetrics(); + + // Normalized temporal difference metric: for motion magnitude + typedef WebRtc_Word32 (VPMContentAnalysis::*TemporalDiffMetricFunc)(); + TemporalDiffMetricFunc TemporalDiffMetric; + WebRtc_Word32 TemporalDiffMetric_C(); + + // Motion metric method: call 2 metrics (magnitude and size) + WebRtc_Word32 ComputeMotionMetrics(); + + // Spatial metric method: computes the 3 frame-average spatial + // prediction errors (1x2,2x1,2x2) + typedef WebRtc_Word32 (VPMContentAnalysis::*ComputeSpatialMetricsFunc)(); + ComputeSpatialMetricsFunc ComputeSpatialMetrics; + WebRtc_Word32 ComputeSpatialMetrics_C(); + +#if defined(WEBRTC_ARCH_X86_FAMILY) + WebRtc_Word32 ComputeSpatialMetrics_SSE2(); + WebRtc_Word32 TemporalDiffMetric_SSE2(); +#endif + + const WebRtc_UWord8* _origFrame; + WebRtc_UWord8* _prevFrame; + int _width; + int _height; + int _skipNum; + int _border; + + // Content Metrics: + // stores the local average of the metrics + float _motionMagnitude; // motion class + float _spatialPredErr; // spatial class + float _spatialPredErrH; // spatial class + float _spatialPredErrV; // spatial class + bool _firstFrame; + bool _CAInit; + + VideoContentMetrics* _cMetrics; + +}; // end of VPMContentAnalysis class definition + +} // namespace + +#endif diff --git a/modules/video_processing/main/source/content_analysis_sse2.cc b/modules/video_processing/main/source/content_analysis_sse2.cc new file mode 100644 index 00000000..f505850d --- /dev/null +++ b/modules/video_processing/main/source/content_analysis_sse2.cc @@ -0,0 +1,300 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "content_analysis.h" + +#include <emmintrin.h> +#include <math.h> + +namespace webrtc { + +WebRtc_Word32 +VPMContentAnalysis::TemporalDiffMetric_SSE2() +{ + WebRtc_UWord32 numPixels = 0; // counter for # of pixels + + const WebRtc_UWord8* imgBufO = _origFrame + _border*_width + _border; + const WebRtc_UWord8* imgBufP = _prevFrame + _border*_width + _border; + + const WebRtc_Word32 width_end = ((_width - 2*_border) & -16) + _border; + + __m128i sad_64 = _mm_setzero_si128(); + __m128i sum_64 = _mm_setzero_si128(); + __m128i sqsum_64 = _mm_setzero_si128(); + const __m128i z = _mm_setzero_si128(); + + for(WebRtc_UWord16 i = 0; i < (_height - 2*_border); i += _skipNum) + { + __m128i sqsum_32 = _mm_setzero_si128(); + + const WebRtc_UWord8 *lineO = imgBufO; + const WebRtc_UWord8 *lineP = imgBufP; + + // Work on 16 pixels at a time. For HD content with a width of 1920 + // this loop will run ~67 times (depending on border). Maximum for + // abs(o-p) and sum(o) will be 255. _mm_sad_epu8 produces 2 64 bit + // results which are then accumulated. There is no chance of + // rollover for these two accumulators. + // o*o will have a maximum of 255*255 = 65025. This will roll over + // a 16 bit accumulator as 67*65025 > 65535, but will fit in a + // 32 bit accumulator. + for(WebRtc_UWord16 j = 0; j < width_end - _border; j += 16) + { + const __m128i o = _mm_loadu_si128((__m128i*)(lineO)); + const __m128i p = _mm_loadu_si128((__m128i*)(lineP)); + + lineO += 16; + lineP += 16; + + // abs pixel difference between frames + sad_64 = _mm_add_epi64 (sad_64, _mm_sad_epu8(o, p)); + + // sum of all pixels in frame + sum_64 = _mm_add_epi64 (sum_64, _mm_sad_epu8(o, z)); + + // squared sum of all pixels in frame + const __m128i olo = _mm_unpacklo_epi8(o,z); + const __m128i ohi = _mm_unpackhi_epi8(o,z); + + const __m128i sqsum_32_lo = _mm_madd_epi16(olo, olo); + const __m128i sqsum_32_hi = _mm_madd_epi16(ohi, ohi); + + sqsum_32 = _mm_add_epi32(sqsum_32, sqsum_32_lo); + sqsum_32 = _mm_add_epi32(sqsum_32, sqsum_32_hi); + } + + // Add to 64 bit running sum as to not roll over. + sqsum_64 = _mm_add_epi64(sqsum_64, + _mm_add_epi64(_mm_unpackhi_epi32(sqsum_32,z), + _mm_unpacklo_epi32(sqsum_32,z))); + + imgBufO += _width * _skipNum; + imgBufP += _width * _skipNum; + numPixels += (width_end - _border); + } + + __m128i sad_final_128; + __m128i sum_final_128; + __m128i sqsum_final_128; + + // bring sums out of vector registers and into integer register + // domain, summing them along the way + _mm_store_si128 (&sad_final_128, sad_64); + _mm_store_si128 (&sum_final_128, sum_64); + _mm_store_si128 (&sqsum_final_128, sqsum_64); + + WebRtc_UWord64 *sad_final_64 = + reinterpret_cast<WebRtc_UWord64*>(&sad_final_128); + WebRtc_UWord64 *sum_final_64 = + reinterpret_cast<WebRtc_UWord64*>(&sum_final_128); + WebRtc_UWord64 *sqsum_final_64 = + reinterpret_cast<WebRtc_UWord64*>(&sqsum_final_128); + + const WebRtc_UWord32 pixelSum = sum_final_64[0] + sum_final_64[1]; + const WebRtc_UWord64 pixelSqSum = sqsum_final_64[0] + sqsum_final_64[1]; + const WebRtc_UWord32 tempDiffSum = sad_final_64[0] + sad_final_64[1]; + + // default + _motionMagnitude = 0.0f; + + if (tempDiffSum == 0) + { + return VPM_OK; + } + + // normalize over all pixels + const float tempDiffAvg = (float)tempDiffSum / (float)(numPixels); + const float pixelSumAvg = (float)pixelSum / (float)(numPixels); + const float pixelSqSumAvg = (float)pixelSqSum / (float)(numPixels); + float contrast = pixelSqSumAvg - (pixelSumAvg * pixelSumAvg); + + if (contrast > 0.0) + { + contrast = sqrt(contrast); + _motionMagnitude = tempDiffAvg/contrast; + } + + return VPM_OK; +} + +WebRtc_Word32 +VPMContentAnalysis::ComputeSpatialMetrics_SSE2() +{ + const WebRtc_UWord8* imgBuf = _origFrame + _border*_width; + const WebRtc_Word32 width_end = ((_width - 2*_border) & -16) + _border; + + __m128i se_32 = _mm_setzero_si128(); + __m128i sev_32 = _mm_setzero_si128(); + __m128i seh_32 = _mm_setzero_si128(); + __m128i msa_32 = _mm_setzero_si128(); + const __m128i z = _mm_setzero_si128(); + + // Error is accumulated as a 32 bit value. Looking at HD content with a + // height of 1080 lines, or about 67 macro blocks. If the 16 bit row + // value is maxed out at 65529 for every row, 65529*1080 = 70777800, which + // will not roll over a 32 bit accumulator. + // _skipNum is also used to reduce the number of rows + for(WebRtc_Word32 i = 0; i < (_height - 2*_border); i += _skipNum) + { + __m128i se_16 = _mm_setzero_si128(); + __m128i sev_16 = _mm_setzero_si128(); + __m128i seh_16 = _mm_setzero_si128(); + __m128i msa_16 = _mm_setzero_si128(); + + // Row error is accumulated as a 16 bit value. There are 8 + // accumulators. Max value of a 16 bit number is 65529. Looking + // at HD content, 1080p, has a width of 1920, 120 macro blocks. + // A mb at a time is processed at a time. Absolute max error at + // a point would be abs(0-255+255+255+255) which equals 1020. + // 120*1020 = 122400. The probability of hitting this is quite low + // on well behaved content. A specially crafted image could roll over. + // _border could also be adjusted to concentrate on just the center of + // the images for an HD capture in order to reduce the possiblity of + // rollover. + const WebRtc_UWord8 *lineTop = imgBuf - _width + _border; + const WebRtc_UWord8 *lineCen = imgBuf + _border; + const WebRtc_UWord8 *lineBot = imgBuf + _width + _border; + + for(WebRtc_Word32 j = 0; j < width_end - _border; j += 16) + { + const __m128i t = _mm_loadu_si128((__m128i*)(lineTop)); + const __m128i l = _mm_loadu_si128((__m128i*)(lineCen - 1)); + const __m128i c = _mm_loadu_si128((__m128i*)(lineCen)); + const __m128i r = _mm_loadu_si128((__m128i*)(lineCen + 1)); + const __m128i b = _mm_loadu_si128((__m128i*)(lineBot)); + + lineTop += 16; + lineCen += 16; + lineBot += 16; + + // center pixel unpacked + __m128i clo = _mm_unpacklo_epi8(c,z); + __m128i chi = _mm_unpackhi_epi8(c,z); + + // left right pixels unpacked and added together + const __m128i lrlo = _mm_add_epi16(_mm_unpacklo_epi8(l,z), + _mm_unpacklo_epi8(r,z)); + const __m128i lrhi = _mm_add_epi16(_mm_unpackhi_epi8(l,z), + _mm_unpackhi_epi8(r,z)); + + // top & bottom pixels unpacked and added together + const __m128i tblo = _mm_add_epi16(_mm_unpacklo_epi8(t,z), + _mm_unpacklo_epi8(b,z)); + const __m128i tbhi = _mm_add_epi16(_mm_unpackhi_epi8(t,z), + _mm_unpackhi_epi8(b,z)); + + // running sum of all pixels + msa_16 = _mm_add_epi16(msa_16, _mm_add_epi16(chi, clo)); + + clo = _mm_slli_epi16(clo, 1); + chi = _mm_slli_epi16(chi, 1); + const __m128i sevtlo = _mm_subs_epi16(clo, tblo); + const __m128i sevthi = _mm_subs_epi16(chi, tbhi); + const __m128i sehtlo = _mm_subs_epi16(clo, lrlo); + const __m128i sehthi = _mm_subs_epi16(chi, lrhi); + + clo = _mm_slli_epi16(clo, 1); + chi = _mm_slli_epi16(chi, 1); + const __m128i setlo = _mm_subs_epi16(clo, + _mm_add_epi16(lrlo, tblo)); + const __m128i sethi = _mm_subs_epi16(chi, + _mm_add_epi16(lrhi, tbhi)); + + // Add to 16 bit running sum + se_16 = _mm_add_epi16(se_16, + _mm_max_epi16(setlo, + _mm_subs_epi16(z, setlo))); + se_16 = _mm_add_epi16(se_16, + _mm_max_epi16(sethi, + _mm_subs_epi16(z, sethi))); + sev_16 = _mm_add_epi16(sev_16, + _mm_max_epi16(sevtlo, + _mm_subs_epi16(z, sevtlo))); + sev_16 = _mm_add_epi16(sev_16, + _mm_max_epi16(sevthi, + _mm_subs_epi16(z, sevthi))); + seh_16 = _mm_add_epi16(seh_16, + _mm_max_epi16(sehtlo, + _mm_subs_epi16(z, sehtlo))); + seh_16 = _mm_add_epi16(seh_16, + _mm_max_epi16(sehthi, + _mm_subs_epi16(z, sehthi))); + } + + // Add to 32 bit running sum as to not roll over. + se_32 = _mm_add_epi32(se_32, + _mm_add_epi32(_mm_unpackhi_epi16(se_16,z), + _mm_unpacklo_epi16(se_16,z))); + sev_32 = _mm_add_epi32(sev_32, + _mm_add_epi32(_mm_unpackhi_epi16(sev_16,z), + _mm_unpacklo_epi16(sev_16,z))); + seh_32 = _mm_add_epi32(seh_32, + _mm_add_epi32(_mm_unpackhi_epi16(seh_16,z), + _mm_unpacklo_epi16(seh_16,z))); + msa_32 = _mm_add_epi32(msa_32, + _mm_add_epi32(_mm_unpackhi_epi16(msa_16,z), + _mm_unpacklo_epi16(msa_16,z))); + + imgBuf += _width * _skipNum; + } + + __m128i se_128; + __m128i sev_128; + __m128i seh_128; + __m128i msa_128; + + // bring sums out of vector registers and into integer register + // domain, summing them along the way + _mm_store_si128 (&se_128, + _mm_add_epi64(_mm_unpackhi_epi32(se_32,z), + _mm_unpacklo_epi32(se_32,z))); + _mm_store_si128 (&sev_128, + _mm_add_epi64(_mm_unpackhi_epi32(sev_32,z), + _mm_unpacklo_epi32(sev_32,z))); + _mm_store_si128 (&seh_128, + _mm_add_epi64(_mm_unpackhi_epi32(seh_32,z), + _mm_unpacklo_epi32(seh_32,z))); + _mm_store_si128 (&msa_128, + _mm_add_epi64(_mm_unpackhi_epi32(msa_32,z), + _mm_unpacklo_epi32(msa_32,z))); + + WebRtc_UWord64 *se_64 = + reinterpret_cast<WebRtc_UWord64*>(&se_128); + WebRtc_UWord64 *sev_64 = + reinterpret_cast<WebRtc_UWord64*>(&sev_128); + WebRtc_UWord64 *seh_64 = + reinterpret_cast<WebRtc_UWord64*>(&seh_128); + WebRtc_UWord64 *msa_64 = + reinterpret_cast<WebRtc_UWord64*>(&msa_128); + + const WebRtc_UWord32 spatialErrSum = se_64[0] + se_64[1]; + const WebRtc_UWord32 spatialErrVSum = sev_64[0] + sev_64[1]; + const WebRtc_UWord32 spatialErrHSum = seh_64[0] + seh_64[1]; + const WebRtc_UWord32 pixelMSA = msa_64[0] + msa_64[1]; + + // normalize over all pixels + const float spatialErr = (float)(spatialErrSum >> 2); + const float spatialErrH = (float)(spatialErrHSum >> 1); + const float spatialErrV = (float)(spatialErrVSum >> 1); + const float norm = (float)pixelMSA; + + // 2X2: + _spatialPredErr = spatialErr / norm; + + // 1X2: + _spatialPredErrH = spatialErrH / norm; + + // 2X1: + _spatialPredErrV = spatialErrV / norm; + + return VPM_OK; +} + +} // namespace webrtc diff --git a/modules/video_processing/main/source/deflickering.cc b/modules/video_processing/main/source/deflickering.cc new file mode 100644 index 00000000..f17dc8d8 --- /dev/null +++ b/modules/video_processing/main/source/deflickering.cc @@ -0,0 +1,450 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +#include <math.h> +#include <stdlib.h> + +#include "deflickering.h" +#include "trace.h" +#include "signal_processing_library.h" +#include "sort.h" + +namespace webrtc { + +// Detection constants +enum { kFrequencyDeviation = 39 }; // (Q4) Maximum allowed deviation for detection +enum { kMinFrequencyToDetect = 32 }; // (Q4) Minimum frequency that can be detected +enum { kNumFlickerBeforeDetect = 2 }; // Number of flickers before we accept detection +enum { kMeanValueScaling = 4 }; // (Q4) In power of 2 +enum { kZeroCrossingDeadzone = 10 }; // Deadzone region in terms of pixel values + +// Deflickering constants +// Compute the quantiles over 1 / DownsamplingFactor of the image. +enum { kDownsamplingFactor = 8 }; +enum { kLog2OfDownsamplingFactor = 3 }; + +// To generate in Matlab: +// >> probUW16 = round(2^11 * [0.05,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,0.95,0.97]); +// >> fprintf('%d, ', probUW16) +// Resolution reduced to avoid overflow when multiplying with the (potentially) large +// number of pixels. +const WebRtc_UWord16 VPMDeflickering::_probUW16[kNumProbs] = + {102, 205, 410, 614, 819, 1024, 1229, 1434, 1638, 1843, 1946, 1987}; // <Q11> + +// To generate in Matlab: +// >> numQuants = 14; maxOnlyLength = 5; +// >> weightUW16 = round(2^15 * [linspace(0.5, 1.0, numQuants - maxOnlyLength)]); +// >> fprintf('%d, %d,\n ', weightUW16); +const WebRtc_UWord16 VPMDeflickering::_weightUW16[kNumQuants - kMaxOnlyLength] = + {16384, 18432, 20480, 22528, 24576, 26624, 28672, 30720, 32768}; // <Q15> + +VPMDeflickering::VPMDeflickering() : + _id(0) +{ + Reset(); +} + +VPMDeflickering::~VPMDeflickering() +{ +} + +WebRtc_Word32 +VPMDeflickering::ChangeUniqueId(const WebRtc_Word32 id) +{ + _id = id; + return 0; +} + +void +VPMDeflickering::Reset() +{ + _meanBufferLength = 0; + _detectionState = 0; + _frameRate = 0; + + memset(_meanBuffer, 0, sizeof(WebRtc_Word32) * kMeanBufferLength); + memset(_timestampBuffer, 0, sizeof(WebRtc_Word32) * kMeanBufferLength); + + // Initialize the history with a uniformly distributed histogram + _quantHistUW8[0][0] = 0; + _quantHistUW8[0][kNumQuants - 1] = 255; + for (WebRtc_Word32 i = 0; i < kNumProbs; i++) + { + _quantHistUW8[0][i + 1] = static_cast<WebRtc_UWord8>((WEBRTC_SPL_UMUL_16_16( + _probUW16[i], 255) + (1 << 10)) >> 11); // Unsigned round. <Q0> + } + + for (WebRtc_Word32 i = 1; i < kFrameHistorySize; i++) + { + memcpy(_quantHistUW8[i], _quantHistUW8[0], sizeof(WebRtc_UWord8) * kNumQuants); + } +} + +WebRtc_Word32 +VPMDeflickering::ProcessFrame(VideoFrame* frame, + VideoProcessingModule::FrameStats* stats) +{ + assert(frame); + WebRtc_UWord32 frameMemory; + WebRtc_UWord8 quantUW8[kNumQuants]; + WebRtc_UWord8 maxQuantUW8[kNumQuants]; + WebRtc_UWord8 minQuantUW8[kNumQuants]; + WebRtc_UWord16 targetQuantUW16[kNumQuants]; + WebRtc_UWord16 incrementUW16; + WebRtc_UWord8 mapUW8[256]; + + WebRtc_UWord16 tmpUW16; + WebRtc_UWord32 tmpUW32; + int width = frame->Width(); + int height = frame->Height(); + + if (frame->Buffer() == NULL) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Null frame pointer"); + return VPM_GENERAL_ERROR; + } + + // Stricter height check due to subsampling size calculation below. + if (width == 0 || height < 2) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Invalid frame size"); + return VPM_GENERAL_ERROR; + } + + if (!VideoProcessingModule::ValidFrameStats(*stats)) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Invalid frame stats"); + return VPM_GENERAL_ERROR; + } + + if (PreDetection(frame->TimeStamp(), *stats) == -1) + { + return VPM_GENERAL_ERROR; + } + + // Flicker detection + WebRtc_Word32 detFlicker = DetectFlicker(); + if (detFlicker < 0) + { // Error + return VPM_GENERAL_ERROR; + } + else if (detFlicker != 1) + { + return 0; + } + + // Size of luminance component + const WebRtc_UWord32 ySize = height * width; + + const WebRtc_UWord32 ySubSize = width * (((height - 1) >> + kLog2OfDownsamplingFactor) + 1); + WebRtc_UWord8* ySorted = new WebRtc_UWord8[ySubSize]; + WebRtc_UWord32 sortRowIdx = 0; + for (int i = 0; i < height; i += kDownsamplingFactor) + { + memcpy(ySorted + sortRowIdx * width, + frame->Buffer() + i * width, width); + sortRowIdx++; + } + + webrtc::Sort(ySorted, ySubSize, webrtc::TYPE_UWord8); + + WebRtc_UWord32 probIdxUW32 = 0; + quantUW8[0] = 0; + quantUW8[kNumQuants - 1] = 255; + + // Ensure we won't get an overflow below. + // In practice, the number of subsampled pixels will not become this large. + if (ySubSize > (1 << 21) - 1) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Subsampled number of pixels too large"); + return -1; + } + + for (WebRtc_Word32 i = 0; i < kNumProbs; i++) + { + probIdxUW32 = WEBRTC_SPL_UMUL_32_16(ySubSize, _probUW16[i]) >> 11; // <Q0> + quantUW8[i + 1] = ySorted[probIdxUW32]; + } + + delete [] ySorted; + ySorted = NULL; + + // Shift history for new frame. + memmove(_quantHistUW8[1], _quantHistUW8[0], (kFrameHistorySize - 1) * kNumQuants * + sizeof(WebRtc_UWord8)); + // Store current frame in history. + memcpy(_quantHistUW8[0], quantUW8, kNumQuants * sizeof(WebRtc_UWord8)); + + // We use a frame memory equal to the ceiling of half the frame rate to ensure we + // capture an entire period of flicker. + frameMemory = (_frameRate + (1 << 5)) >> 5; // Unsigned ceiling. <Q0> + // _frameRate in Q4. + if (frameMemory > kFrameHistorySize) + { + frameMemory = kFrameHistorySize; + } + + // Get maximum and minimum. + for (WebRtc_Word32 i = 0; i < kNumQuants; i++) + { + maxQuantUW8[i] = 0; + minQuantUW8[i] = 255; + for (WebRtc_UWord32 j = 0; j < frameMemory; j++) + { + if (_quantHistUW8[j][i] > maxQuantUW8[i]) + { + maxQuantUW8[i] = _quantHistUW8[j][i]; + } + + if (_quantHistUW8[j][i] < minQuantUW8[i]) + { + minQuantUW8[i] = _quantHistUW8[j][i]; + } + } + } + + // Get target quantiles. + for (WebRtc_Word32 i = 0; i < kNumQuants - kMaxOnlyLength; i++) + { + targetQuantUW16[i] = static_cast<WebRtc_UWord16>((WEBRTC_SPL_UMUL_16_16( + _weightUW16[i], maxQuantUW8[i]) + WEBRTC_SPL_UMUL_16_16((1 << 15) - + _weightUW16[i], minQuantUW8[i])) >> 8); // <Q7> + } + + for (WebRtc_Word32 i = kNumQuants - kMaxOnlyLength; i < kNumQuants; i++) + { + targetQuantUW16[i] = ((WebRtc_UWord16)maxQuantUW8[i]) << 7; + } + + // Compute the map from input to output pixels. + WebRtc_UWord16 mapUW16; // <Q7> + for (WebRtc_Word32 i = 1; i < kNumQuants; i++) + { + // As quant and targetQuant are limited to UWord8, we're safe to use Q7 here. + tmpUW32 = static_cast<WebRtc_UWord32>(targetQuantUW16[i] - + targetQuantUW16[i - 1]); // <Q7> + tmpUW16 = static_cast<WebRtc_UWord16>(quantUW8[i] - quantUW8[i - 1]); // <Q0> + + if (tmpUW16 > 0) + { + incrementUW16 = static_cast<WebRtc_UWord16>(WebRtcSpl_DivU32U16(tmpUW32, + tmpUW16)); // <Q7> + } + else + { + // The value is irrelevant; the loop below will only iterate once. + incrementUW16 = 0; + } + + mapUW16 = targetQuantUW16[i - 1]; + for (WebRtc_UWord32 j = quantUW8[i - 1]; j < (WebRtc_UWord32)(quantUW8[i] + 1); j++) + { + mapUW8[j] = (WebRtc_UWord8)((mapUW16 + (1 << 6)) >> 7); // Unsigned round. <Q0> + mapUW16 += incrementUW16; + } + } + + // Map to the output frame. + uint8_t* buffer = frame->Buffer(); + for (WebRtc_UWord32 i = 0; i < ySize; i++) + { + buffer[i] = mapUW8[buffer[i]]; + } + + // Frame was altered, so reset stats. + VideoProcessingModule::ClearFrameStats(stats); + + return 0; +} + +/** + Performs some pre-detection operations. Must be called before + DetectFlicker(). + + \param[in] timestamp Timestamp of the current frame. + \param[in] stats Statistics of the current frame. + + \return 0: Success\n + 2: Detection not possible due to flickering frequency too close to + zero.\n + -1: Error +*/ +WebRtc_Word32 +VPMDeflickering::PreDetection(const WebRtc_UWord32 timestamp, + const VideoProcessingModule::FrameStats& stats) +{ + WebRtc_Word32 meanVal; // Mean value of frame (Q4) + WebRtc_UWord32 frameRate = 0; + WebRtc_Word32 meanBufferLength; // Temp variable + + meanVal = ((stats.sum << kMeanValueScaling) / stats.numPixels); + /* Update mean value buffer. + * This should be done even though we might end up in an unreliable detection. + */ + memmove(_meanBuffer + 1, _meanBuffer, (kMeanBufferLength - 1) * sizeof(WebRtc_Word32)); + _meanBuffer[0] = meanVal; + + /* Update timestamp buffer. + * This should be done even though we might end up in an unreliable detection. + */ + memmove(_timestampBuffer + 1, _timestampBuffer, (kMeanBufferLength - 1) * + sizeof(WebRtc_UWord32)); + _timestampBuffer[0] = timestamp; + + /* Compute current frame rate (Q4) */ + if (_timestampBuffer[kMeanBufferLength - 1] != 0) + { + frameRate = ((90000 << 4) * (kMeanBufferLength - 1)); + frameRate /= (_timestampBuffer[0] - _timestampBuffer[kMeanBufferLength - 1]); + }else if (_timestampBuffer[1] != 0) + { + frameRate = (90000 << 4) / (_timestampBuffer[0] - _timestampBuffer[1]); + } + + /* Determine required size of mean value buffer (_meanBufferLength) */ + if (frameRate == 0) { + meanBufferLength = 1; + } + else { + meanBufferLength = (kNumFlickerBeforeDetect * frameRate) / kMinFrequencyToDetect; + } + /* Sanity check of buffer length */ + if (meanBufferLength >= kMeanBufferLength) + { + /* Too long buffer. The flickering frequency is too close to zero, which + * makes the estimation unreliable. + */ + _meanBufferLength = 0; + return 2; + } + _meanBufferLength = meanBufferLength; + + if ((_timestampBuffer[_meanBufferLength - 1] != 0) && (_meanBufferLength != 1)) + { + frameRate = ((90000 << 4) * (_meanBufferLength - 1)); + frameRate /= (_timestampBuffer[0] - _timestampBuffer[_meanBufferLength - 1]); + }else if (_timestampBuffer[1] != 0) + { + frameRate = (90000 << 4) / (_timestampBuffer[0] - _timestampBuffer[1]); + } + _frameRate = frameRate; + + return 0; +} + +/** + This function detects flicker in the video stream. As a side effect the mean value + buffer is updated with the new mean value. + + \return 0: No flickering detected\n + 1: Flickering detected\n + 2: Detection not possible due to unreliable frequency interval + -1: Error +*/ +WebRtc_Word32 VPMDeflickering::DetectFlicker() +{ + /* Local variables */ + WebRtc_UWord32 i; + WebRtc_Word32 freqEst; // (Q4) Frequency estimate to base detection upon + WebRtc_Word32 retVal = -1; + + /* Sanity check for _meanBufferLength */ + if (_meanBufferLength < 2) + { + /* Not possible to estimate frequency */ + return(2); + } + /* Count zero crossings with a dead zone to be robust against noise. + * If the noise std is 2 pixel this corresponds to about 95% confidence interval. + */ + WebRtc_Word32 deadzone = (kZeroCrossingDeadzone << kMeanValueScaling); // Q4 + WebRtc_Word32 meanOfBuffer = 0; // Mean value of mean value buffer + WebRtc_Word32 numZeros = 0; // Number of zeros that cross the deadzone + WebRtc_Word32 cntState = 0; // State variable for zero crossing regions + WebRtc_Word32 cntStateOld = 0; // Previous state variable for zero crossing regions + + for (i = 0; i < _meanBufferLength; i++) + { + meanOfBuffer += _meanBuffer[i]; + } + meanOfBuffer += (_meanBufferLength >> 1); // Rounding, not truncation + meanOfBuffer /= _meanBufferLength; + + /* Count zero crossings */ + cntStateOld = (_meanBuffer[0] >= (meanOfBuffer + deadzone)); + cntStateOld -= (_meanBuffer[0] <= (meanOfBuffer - deadzone)); + for (i = 1; i < _meanBufferLength; i++) + { + cntState = (_meanBuffer[i] >= (meanOfBuffer + deadzone)); + cntState -= (_meanBuffer[i] <= (meanOfBuffer - deadzone)); + if (cntStateOld == 0) + { + cntStateOld = -cntState; + } + if (((cntState + cntStateOld) == 0) && (cntState != 0)) + { + numZeros++; + cntStateOld = cntState; + } + } + /* END count zero crossings */ + + /* Frequency estimation according to: + * freqEst = numZeros * frameRate / 2 / _meanBufferLength; + * + * Resolution is set to Q4 + */ + freqEst = ((numZeros * 90000) << 3); + freqEst /= (_timestampBuffer[0] - _timestampBuffer[_meanBufferLength - 1]); + + /* Translate frequency estimate to regions close to 100 and 120 Hz */ + WebRtc_UWord8 freqState = 0; // Current translation state; + // (0) Not in interval, + // (1) Within valid interval, + // (2) Out of range + WebRtc_Word32 freqAlias = freqEst; + if (freqEst > kMinFrequencyToDetect) + { + WebRtc_UWord8 aliasState = 1; + while(freqState == 0) + { + /* Increase frequency */ + freqAlias += (aliasState * _frameRate); + freqAlias += ((freqEst << 1) * (1 - (aliasState << 1))); + /* Compute state */ + freqState = (abs(freqAlias - (100 << 4)) <= kFrequencyDeviation); + freqState += (abs(freqAlias - (120 << 4)) <= kFrequencyDeviation); + freqState += 2 * (freqAlias > ((120 << 4) + kFrequencyDeviation)); + /* Switch alias state */ + aliasState++; + aliasState &= 0x01; + } + } + /* Is frequency estimate within detection region? */ + if (freqState == 1) + { + retVal = 1; + }else if (freqState == 0) + { + retVal = 2; + }else + { + retVal = 0; + } + return retVal; +} + +} //namespace diff --git a/modules/video_processing/main/source/deflickering.h b/modules/video_processing/main/source/deflickering.h new file mode 100644 index 00000000..dfe7d9d1 --- /dev/null +++ b/modules/video_processing/main/source/deflickering.h @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * deflickering.h + */ + +#ifndef VPM_DEFLICKERING_H +#define VPM_DEFLICKERING_H + +#include "typedefs.h" +#include "video_processing.h" + +#include <cstring> // NULL + +namespace webrtc { + +class VPMDeflickering +{ +public: + VPMDeflickering(); + ~VPMDeflickering(); + + WebRtc_Word32 ChangeUniqueId(WebRtc_Word32 id); + + void Reset(); + + WebRtc_Word32 ProcessFrame(VideoFrame* frame, + VideoProcessingModule::FrameStats* stats); +private: + WebRtc_Word32 PreDetection(WebRtc_UWord32 timestamp, + const VideoProcessingModule::FrameStats& stats); + + WebRtc_Word32 DetectFlicker(); + + enum { kMeanBufferLength = 32 }; + enum { kFrameHistorySize = 15 }; + enum { kNumProbs = 12 }; + enum { kNumQuants = kNumProbs + 2 }; + enum { kMaxOnlyLength = 5 }; + + WebRtc_Word32 _id; + + WebRtc_UWord32 _meanBufferLength; + WebRtc_UWord8 _detectionState; // 0: No flickering + // 1: Flickering detected + // 2: In flickering + WebRtc_Word32 _meanBuffer[kMeanBufferLength]; + WebRtc_UWord32 _timestampBuffer[kMeanBufferLength]; + WebRtc_UWord32 _frameRate; + static const WebRtc_UWord16 _probUW16[kNumProbs]; + static const WebRtc_UWord16 _weightUW16[kNumQuants - kMaxOnlyLength]; + WebRtc_UWord8 _quantHistUW8[kFrameHistorySize][kNumQuants]; +}; + +} //namespace + +#endif // VPM_DEFLICKERING_H + diff --git a/modules/video_processing/main/source/denoising.cc b/modules/video_processing/main/source/denoising.cc new file mode 100644 index 00000000..33608a09 --- /dev/null +++ b/modules/video_processing/main/source/denoising.cc @@ -0,0 +1,186 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "denoising.h" +#include "trace.h" + +#include <cstring> + +namespace webrtc { + +enum { kSubsamplingTime = 0 }; // Down-sampling in time (unit: number of frames) +enum { kSubsamplingWidth = 0 }; // Sub-sampling in width (unit: power of 2) +enum { kSubsamplingHeight = 0 }; // Sub-sampling in height (unit: power of 2) +enum { kDenoiseFiltParam = 179 }; // (Q8) De-noising filter parameter +enum { kDenoiseFiltParamRec = 77 }; // (Q8) 1 - filter parameter +enum { kDenoiseThreshold = 19200 }; // (Q8) De-noising threshold level + +VPMDenoising::VPMDenoising() : + _id(0), + _moment1(NULL), + _moment2(NULL) +{ + Reset(); +} + +VPMDenoising::~VPMDenoising() +{ + if (_moment1) + { + delete [] _moment1; + _moment1 = NULL; + } + + if (_moment2) + { + delete [] _moment2; + _moment2 = NULL; + } +} + +WebRtc_Word32 +VPMDenoising::ChangeUniqueId(const WebRtc_Word32 id) +{ + _id = id; + return VPM_OK; +} + +void +VPMDenoising::Reset() +{ + _frameSize = 0; + _denoiseFrameCnt = 0; + + if (_moment1) + { + delete [] _moment1; + _moment1 = NULL; + } + + if (_moment2) + { + delete [] _moment2; + _moment2 = NULL; + } +} + +WebRtc_Word32 +VPMDenoising::ProcessFrame(VideoFrame* frame) +{ + assert(frame); + WebRtc_Word32 thevar; + int k; + int jsub, ksub; + WebRtc_Word32 diff0; + WebRtc_UWord32 tmpMoment1; + WebRtc_UWord32 tmpMoment2; + WebRtc_UWord32 tmp; + WebRtc_Word32 numPixelsChanged = 0; + + if (frame->Buffer() == NULL) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Null frame pointer"); + return VPM_GENERAL_ERROR; + } + + int width = frame->Width(); + int height = frame->Height(); + if (width == 0 || height == 0) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, _id, + "Invalid frame size"); + return VPM_GENERAL_ERROR; + } + + /* Size of luminance component */ + const WebRtc_UWord32 ysize = height * width; + + /* Initialization */ + if (ysize != _frameSize) + { + delete [] _moment1; + _moment1 = NULL; + + delete [] _moment2; + _moment2 = NULL; + } + _frameSize = ysize; + + if (!_moment1) + { + _moment1 = new WebRtc_UWord32[ysize]; + memset(_moment1, 0, sizeof(WebRtc_UWord32)*ysize); + } + + if (!_moment2) + { + _moment2 = new WebRtc_UWord32[ysize]; + memset(_moment2, 0, sizeof(WebRtc_UWord32)*ysize); + } + + /* Apply de-noising on each pixel, but update variance sub-sampled */ + uint8_t* buffer = frame->Buffer(); + for (int i = 0; i < height; i++) + { // Collect over height + k = i * width; + ksub = ((i >> kSubsamplingHeight) << kSubsamplingHeight) * width; + for (int j = 0; j < width; j++) + { // Collect over width + jsub = ((j >> kSubsamplingWidth) << kSubsamplingWidth); + /* Update mean value for every pixel and every frame */ + tmpMoment1 = _moment1[k + j]; + tmpMoment1 *= kDenoiseFiltParam; // Q16 + tmpMoment1 += ((kDenoiseFiltParamRec * + ((WebRtc_UWord32)buffer[k + j])) << 8); + tmpMoment1 >>= 8; // Q8 + _moment1[k + j] = tmpMoment1; + + tmpMoment2 = _moment2[ksub + jsub]; + if ((ksub == k) && (jsub == j) && (_denoiseFrameCnt == 0)) + { + tmp = ((WebRtc_UWord32)buffer[k + j] * + (WebRtc_UWord32)buffer[k + j]); + tmpMoment2 *= kDenoiseFiltParam; // Q16 + tmpMoment2 += ((kDenoiseFiltParamRec * tmp)<<8); + tmpMoment2 >>= 8; // Q8 + } + _moment2[k + j] = tmpMoment2; + /* Current event = deviation from mean value */ + diff0 = ((WebRtc_Word32)buffer[k + j] << 8) - _moment1[k + j]; + /* Recent events = variance (variations over time) */ + thevar = _moment2[k + j]; + thevar -= ((_moment1[k + j] * _moment1[k + j]) >> 8); + /*************************************************************************** + * De-noising criteria, i.e., when should we replace a pixel by its mean + * + * 1) recent events are minor + * 2) current events are minor + ***************************************************************************/ + if ((thevar < kDenoiseThreshold) + && ((diff0 * diff0 >> 8) < kDenoiseThreshold)) + { // Replace with mean + buffer[k + j] = (WebRtc_UWord8)(_moment1[k + j] >> 8); + numPixelsChanged++; + } + } + } + + /* Update frame counter */ + _denoiseFrameCnt++; + if (_denoiseFrameCnt > kSubsamplingTime) + { + _denoiseFrameCnt = 0; + } + + return numPixelsChanged; +} + +} //namespace diff --git a/modules/video_processing/main/source/denoising.h b/modules/video_processing/main/source/denoising.h new file mode 100644 index 00000000..eed772f5 --- /dev/null +++ b/modules/video_processing/main/source/denoising.h @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * denoising.h + */ +#ifndef VPM_DENOISING_H +#define VPM_DENOISING_H + +#include "typedefs.h" +#include "video_processing.h" + +namespace webrtc { + +class VPMDenoising +{ +public: + VPMDenoising(); + ~VPMDenoising(); + + WebRtc_Word32 ChangeUniqueId(WebRtc_Word32 id); + + void Reset(); + + WebRtc_Word32 ProcessFrame(VideoFrame* frame); + +private: + WebRtc_Word32 _id; + + WebRtc_UWord32* _moment1; // (Q8) First order moment (mean) + WebRtc_UWord32* _moment2; // (Q8) Second order moment + WebRtc_UWord32 _frameSize; // Size (# of pixels) of frame + int _denoiseFrameCnt; // Counter for subsampling in time +}; + +} //namespace + +#endif // VPM_DENOISING_H + diff --git a/modules/video_processing/main/source/frame_preprocessor.cc b/modules/video_processing/main/source/frame_preprocessor.cc new file mode 100644 index 00000000..d9609f93 --- /dev/null +++ b/modules/video_processing/main/source/frame_preprocessor.cc @@ -0,0 +1,192 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "frame_preprocessor.h" +#include "trace.h" + +namespace webrtc { + +VPMFramePreprocessor::VPMFramePreprocessor(): +_id(0), +_contentMetrics(NULL), +_maxFrameRate(0), +_resampledFrame(), +_enableCA(false), +_frameCnt(0) +{ + _spatialResampler = new VPMSimpleSpatialResampler(); + _ca = new VPMContentAnalysis(true); + _vd = new VPMVideoDecimator(); +} + +VPMFramePreprocessor::~VPMFramePreprocessor() +{ + Reset(); + delete _spatialResampler; + delete _ca; + delete _vd; + _resampledFrame.Free(); // is this needed? +} + +WebRtc_Word32 +VPMFramePreprocessor::ChangeUniqueId(const WebRtc_Word32 id) +{ + _id = id; + return VPM_OK; +} + +void +VPMFramePreprocessor::Reset() +{ + _ca->Release(); + _vd->Reset(); + _contentMetrics = NULL; + _spatialResampler->Reset(); + _enableCA = false; + _frameCnt = 0; +} + + +void +VPMFramePreprocessor::EnableTemporalDecimation(bool enable) +{ + _vd->EnableTemporalDecimation(enable); +} +void +VPMFramePreprocessor::EnableContentAnalysis(bool enable) +{ + _enableCA = enable; +} + +void +VPMFramePreprocessor::SetInputFrameResampleMode(VideoFrameResampling resamplingMode) +{ + _spatialResampler->SetInputFrameResampleMode(resamplingMode); +} + + +WebRtc_Word32 +VPMFramePreprocessor::SetMaxFrameRate(WebRtc_UWord32 maxFrameRate) +{ + if (maxFrameRate == 0) + { + return VPM_PARAMETER_ERROR; + } + //Max allowed frame rate + _maxFrameRate = maxFrameRate; + + return _vd->SetMaxFrameRate(maxFrameRate); +} + + +WebRtc_Word32 +VPMFramePreprocessor::SetTargetResolution(WebRtc_UWord32 width, WebRtc_UWord32 height, WebRtc_UWord32 frameRate) +{ + if ( (width == 0) || (height == 0) || (frameRate == 0)) + { + return VPM_PARAMETER_ERROR; + } + WebRtc_Word32 retVal = 0; + retVal = _spatialResampler->SetTargetFrameSize(width, height); + if (retVal < 0) + { + return retVal; + } + retVal = _vd->SetTargetFrameRate(frameRate); + if (retVal < 0) + { + return retVal; + } + + return VPM_OK; +} + +void +VPMFramePreprocessor::UpdateIncomingFrameRate() +{ + _vd->UpdateIncomingFrameRate(); +} + +WebRtc_UWord32 +VPMFramePreprocessor::DecimatedFrameRate() +{ + return _vd->DecimatedFrameRate(); +} + + +WebRtc_UWord32 +VPMFramePreprocessor::DecimatedWidth() const +{ + return _spatialResampler->TargetWidth(); +} + + +WebRtc_UWord32 +VPMFramePreprocessor::DecimatedHeight() const +{ + return _spatialResampler->TargetHeight(); +} + + +WebRtc_Word32 +VPMFramePreprocessor::PreprocessFrame(const VideoFrame& frame, + VideoFrame** processedFrame) +{ + if (frame.Buffer() == NULL || frame.Height() == 0 || frame.Width() == 0) + { + return VPM_PARAMETER_ERROR; + } + + _vd->UpdateIncomingFrameRate(); + + if (_vd->DropFrame()) + { + WEBRTC_TRACE(webrtc::kTraceStream, webrtc::kTraceVideo, _id, + "Drop frame due to frame rate"); + return 1; // drop 1 frame + } + + // Resizing incoming frame if needed. + // Note that we must make a copy of it. + // We are not allowed to resample the input frame. + *processedFrame = NULL; + if (_spatialResampler->ApplyResample(frame.Width(), frame.Height())) { + WebRtc_Word32 ret = _spatialResampler->ResampleFrame(frame, + _resampledFrame); + if (ret != VPM_OK) + return ret; + *processedFrame = &_resampledFrame; + } + + // Perform content analysis on the frame to be encoded. + if (_enableCA) + { + // Compute new metrics every |kSkipFramesCA| frames, starting with + // the first frame. + if (_frameCnt % kSkipFrameCA == 0) { + if (*processedFrame == NULL) { + _contentMetrics = _ca->ComputeContentMetrics(frame); + } else { + _contentMetrics = _ca->ComputeContentMetrics(_resampledFrame); + } + } + ++_frameCnt; + } + return VPM_OK; +} + + +VideoContentMetrics* +VPMFramePreprocessor::ContentMetrics() const +{ + return _contentMetrics; +} + +} //namespace diff --git a/modules/video_processing/main/source/frame_preprocessor.h b/modules/video_processing/main/source/frame_preprocessor.h new file mode 100644 index 00000000..f85d5c0c --- /dev/null +++ b/modules/video_processing/main/source/frame_preprocessor.h @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * frame_preprocessor.h + */ +#ifndef VPM_FRAME_PREPROCESSOR_H +#define VPM_FRAME_PREPROCESSOR_H + +#include "typedefs.h" +#include "video_processing.h" +#include "content_analysis.h" +#include "spatial_resampler.h" +#include "video_decimator.h" + +namespace webrtc { + + +class VPMFramePreprocessor +{ +public: + + VPMFramePreprocessor(); + ~VPMFramePreprocessor(); + + WebRtc_Word32 ChangeUniqueId(const WebRtc_Word32 id); + + void Reset(); + + // Enable temporal decimation + void EnableTemporalDecimation(bool enable); + + void SetInputFrameResampleMode(VideoFrameResampling resamplingMode); + + //Enable content analysis + void EnableContentAnalysis(bool enable); + + //Set max frame rate + WebRtc_Word32 SetMaxFrameRate(WebRtc_UWord32 maxFrameRate); + + //Set target resolution: frame rate and dimension + WebRtc_Word32 SetTargetResolution(WebRtc_UWord32 width, + WebRtc_UWord32 height, + WebRtc_UWord32 frameRate); + + //Update incoming frame rate/dimension + void UpdateIncomingFrameRate(); + + WebRtc_Word32 updateIncomingFrameSize(WebRtc_UWord32 width, + WebRtc_UWord32 height); + + //Set decimated values: frame rate/dimension + WebRtc_UWord32 DecimatedFrameRate(); + WebRtc_UWord32 DecimatedWidth() const; + WebRtc_UWord32 DecimatedHeight() const; + + //Preprocess output: + WebRtc_Word32 PreprocessFrame(const VideoFrame& frame, + VideoFrame** processedFrame); + VideoContentMetrics* ContentMetrics() const; + +private: + // The content does not change so much every frame, so to reduce complexity + // we can compute new content metrics every |kSkipFrameCA| frames. + enum { kSkipFrameCA = 2 }; + + WebRtc_Word32 _id; + VideoContentMetrics* _contentMetrics; + WebRtc_UWord32 _maxFrameRate; + VideoFrame _resampledFrame; + VPMSpatialResampler* _spatialResampler; + VPMContentAnalysis* _ca; + VPMVideoDecimator* _vd; + bool _enableCA; + int _frameCnt; + +}; // end of VPMFramePreprocessor class definition + +} //namespace + +#endif // VPM_FRAME_PREPROCESS_H diff --git a/modules/video_processing/main/source/spatial_resampler.cc b/modules/video_processing/main/source/spatial_resampler.cc new file mode 100644 index 00000000..0d7c2e59 --- /dev/null +++ b/modules/video_processing/main/source/spatial_resampler.cc @@ -0,0 +1,120 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "spatial_resampler.h" + + +namespace webrtc { + +VPMSimpleSpatialResampler::VPMSimpleSpatialResampler() +: +_resamplingMode(kFastRescaling), +_targetWidth(0), +_targetHeight(0), +_scaler() +{ +} + +VPMSimpleSpatialResampler::~VPMSimpleSpatialResampler() +{ + // +} + + +WebRtc_Word32 +VPMSimpleSpatialResampler::SetTargetFrameSize(WebRtc_Word32 width, + WebRtc_Word32 height) +{ + if (_resamplingMode == kNoRescaling) { + return VPM_OK; + } + + if (width < 1 || height < 1) { + return VPM_PARAMETER_ERROR; + } + + _targetWidth = width; + _targetHeight = height; + + return VPM_OK; +} + +void +VPMSimpleSpatialResampler::SetInputFrameResampleMode(VideoFrameResampling + resamplingMode) +{ + _resamplingMode = resamplingMode; +} + +void +VPMSimpleSpatialResampler::Reset() +{ + _resamplingMode = kFastRescaling; + _targetWidth = 0; + _targetHeight = 0; +} + +WebRtc_Word32 +VPMSimpleSpatialResampler::ResampleFrame(const VideoFrame& inFrame, + VideoFrame& outFrame) +{ + if (_resamplingMode == kNoRescaling) + return outFrame.CopyFrame(inFrame); + // Check if re-sampling is needed + if ((inFrame.Width() == (WebRtc_UWord32)_targetWidth) && + (inFrame.Height() == (WebRtc_UWord32)_targetHeight)) { + return outFrame.CopyFrame(inFrame); + } + + // Setting scaler + // TODO(mikhal/marpan): Should we allow for setting the filter mode in + // _scale.Set() with |_resamplingMode|? + int retVal = 0; + retVal = _scaler.Set(inFrame.Width(), inFrame.Height(), + _targetWidth, _targetHeight, kI420, kI420, kScaleBox); + if (retVal < 0) + return retVal; + + // Setting time parameters to the output frame - all the rest will be + // set by the scaler. + outFrame.SetTimeStamp(inFrame.TimeStamp()); + outFrame.SetRenderTime(inFrame.RenderTimeMs()); + + retVal = _scaler.Scale(inFrame, &outFrame); + if (retVal == 0) + return VPM_OK; + else + return VPM_SCALE_ERROR; +} + +WebRtc_Word32 +VPMSimpleSpatialResampler::TargetHeight() +{ + return _targetHeight; +} + +WebRtc_Word32 +VPMSimpleSpatialResampler::TargetWidth() +{ + return _targetWidth; +} + +bool +VPMSimpleSpatialResampler::ApplyResample(WebRtc_Word32 width, + WebRtc_Word32 height) +{ + if ((width == _targetWidth && height == _targetHeight) || + _resamplingMode == kNoRescaling) + return false; + else + return true; +} + +} //namespace diff --git a/modules/video_processing/main/source/spatial_resampler.h b/modules/video_processing/main/source/spatial_resampler.h new file mode 100644 index 00000000..28a5a6c8 --- /dev/null +++ b/modules/video_processing/main/source/spatial_resampler.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * spatial_resampler.h + */ + +#ifndef VPM_SPATIAL_RESAMPLER_H +#define VPM_SPATIAL_RESAMPLER_H + +#include "typedefs.h" + +#include "module_common_types.h" +#include "video_processing_defines.h" + +#include "common_video/libyuv/include/webrtc_libyuv.h" +#include "common_video/libyuv/include/scaler.h" + +namespace webrtc { + +class VPMSpatialResampler +{ +public: + virtual ~VPMSpatialResampler() {}; + virtual WebRtc_Word32 SetTargetFrameSize(WebRtc_Word32 width, + WebRtc_Word32 height) = 0; + virtual void SetInputFrameResampleMode(VideoFrameResampling + resamplingMode) = 0; + virtual void Reset() = 0; + virtual WebRtc_Word32 ResampleFrame(const VideoFrame& inFrame, + VideoFrame& outFrame) = 0; + virtual WebRtc_Word32 TargetWidth() = 0; + virtual WebRtc_Word32 TargetHeight() = 0; + virtual bool ApplyResample(WebRtc_Word32 width, WebRtc_Word32 height) = 0; +}; + +class VPMSimpleSpatialResampler : public VPMSpatialResampler +{ +public: + VPMSimpleSpatialResampler(); + ~VPMSimpleSpatialResampler(); + virtual WebRtc_Word32 SetTargetFrameSize(WebRtc_Word32 width, + WebRtc_Word32 height); + virtual void SetInputFrameResampleMode(VideoFrameResampling resamplingMode); + virtual void Reset(); + virtual WebRtc_Word32 ResampleFrame(const VideoFrame& inFrame, + VideoFrame& outFrame); + virtual WebRtc_Word32 TargetWidth(); + virtual WebRtc_Word32 TargetHeight(); + virtual bool ApplyResample(WebRtc_Word32 width, WebRtc_Word32 height); + +private: + + VideoFrameResampling _resamplingMode; + WebRtc_Word32 _targetWidth; + WebRtc_Word32 _targetHeight; + Scaler _scaler; +}; + +} //namespace + +#endif diff --git a/modules/video_processing/main/source/video_decimator.cc b/modules/video_processing/main/source/video_decimator.cc new file mode 100644 index 00000000..43bda088 --- /dev/null +++ b/modules/video_processing/main/source/video_decimator.cc @@ -0,0 +1,235 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "video_decimator.h" +#include "tick_util.h" +#include "video_processing.h" + +#define VD_MIN(a, b) ((a) < (b)) ? (a) : (b) + +namespace webrtc { + +VPMVideoDecimator::VPMVideoDecimator() +: +_overShootModifier(0), +_dropCount(0), +_keepCount(0), +_targetFrameRate(30), +_incomingFrameRate(0.0f), +_maxFrameRate(30), +_incomingFrameTimes(), +_enableTemporalDecimation(true) +{ + Reset(); +} + +VPMVideoDecimator::~VPMVideoDecimator() +{ + // +} + +void +VPMVideoDecimator::Reset() +{ + _overShootModifier = 0; + _dropCount = 0; + _keepCount = 0; + _targetFrameRate = 30; + _incomingFrameRate = 0.0f; + _maxFrameRate = 30; + memset(_incomingFrameTimes, 0, sizeof(_incomingFrameTimes)); + _enableTemporalDecimation = true; +} + +void +VPMVideoDecimator::EnableTemporalDecimation(bool enable) +{ + _enableTemporalDecimation = enable; +} +WebRtc_Word32 +VPMVideoDecimator::SetMaxFrameRate(WebRtc_UWord32 maxFrameRate) +{ + if (maxFrameRate == 0) + { + return VPM_PARAMETER_ERROR; + } + + _maxFrameRate = maxFrameRate; + + if (_targetFrameRate > _maxFrameRate) + { + _targetFrameRate = _maxFrameRate; + + } + return VPM_OK; +} + +WebRtc_Word32 +VPMVideoDecimator::SetTargetFrameRate(WebRtc_UWord32 frameRate) +{ + if (frameRate == 0) + { + return VPM_PARAMETER_ERROR; + } + if (frameRate > _maxFrameRate) + { + //override + _targetFrameRate = _maxFrameRate; + } + else + { + _targetFrameRate = frameRate; + } + return VPM_OK; +} + +bool +VPMVideoDecimator::DropFrame() +{ + if (!_enableTemporalDecimation) + { + return false; + } + + if (_incomingFrameRate <= 0) + { + return false; + } + + const WebRtc_UWord32 incomingFrameRate = static_cast<WebRtc_UWord32>(_incomingFrameRate + 0.5f); + + if (_targetFrameRate == 0) + { + return true; + } + + bool drop = false; + if (incomingFrameRate > _targetFrameRate) + { + WebRtc_Word32 overshoot = _overShootModifier + (incomingFrameRate - _targetFrameRate); + if(overshoot < 0) + { + overshoot = 0; + _overShootModifier = 0; + } + + if (overshoot && 2 * overshoot < (WebRtc_Word32) incomingFrameRate) + { + + if (_dropCount) // Just got here so drop to be sure. + { + _dropCount = 0; + return true; + } + const WebRtc_UWord32 dropVar = incomingFrameRate / overshoot; + + if (_keepCount >= dropVar) + { + drop = true; + _overShootModifier = -((WebRtc_Word32) incomingFrameRate % overshoot) / 3; + _keepCount = 1; + } + else + { + + _keepCount++; + } + } + else + { + _keepCount = 0; + const WebRtc_UWord32 dropVar = overshoot / _targetFrameRate; + if (_dropCount < dropVar) + { + drop = true; + _dropCount++; + } + else + { + _overShootModifier = overshoot % _targetFrameRate; + drop = false; + _dropCount = 0; + } + } + } + + return drop; +} + + +WebRtc_UWord32 +VPMVideoDecimator::DecimatedFrameRate() +{ + ProcessIncomingFrameRate(TickTime::MillisecondTimestamp()); + if (!_enableTemporalDecimation) + { + return static_cast<WebRtc_UWord32>(_incomingFrameRate + 0.5f); + } + return VD_MIN(_targetFrameRate, static_cast<WebRtc_UWord32>(_incomingFrameRate + 0.5f)); +} + +WebRtc_UWord32 +VPMVideoDecimator::InputFrameRate() +{ + ProcessIncomingFrameRate(TickTime::MillisecondTimestamp()); + return static_cast<WebRtc_UWord32>(_incomingFrameRate + 0.5f); +} + +void +VPMVideoDecimator::UpdateIncomingFrameRate() +{ + WebRtc_Word64 now = TickTime::MillisecondTimestamp(); + if(_incomingFrameTimes[0] == 0) + { + // first no shift + } else + { + // shift + for(int i = (kFrameCountHistorySize - 2); i >= 0 ; i--) + { + _incomingFrameTimes[i+1] = _incomingFrameTimes[i]; + } + } + _incomingFrameTimes[0] = now; + ProcessIncomingFrameRate(now); +} + +void +VPMVideoDecimator::ProcessIncomingFrameRate(WebRtc_Word64 now) +{ + WebRtc_Word32 num = 0; + WebRtc_Word32 nrOfFrames = 0; + for(num = 1; num < (kFrameCountHistorySize - 1); num++) + { + if (_incomingFrameTimes[num] <= 0 || + now - _incomingFrameTimes[num] > kFrameHistoryWindowMs) // don't use data older than 2sec + { + break; + } else + { + nrOfFrames++; + } + } + if (num > 1) + { + WebRtc_Word64 diff = now - _incomingFrameTimes[num-1]; + _incomingFrameRate = 1.0; + if(diff >0) + { + _incomingFrameRate = nrOfFrames * 1000.0f / static_cast<float>(diff); + } + } + else + { + _incomingFrameRate = static_cast<float>(nrOfFrames); + } +} + +} //namespace diff --git a/modules/video_processing/main/source/video_decimator.h b/modules/video_processing/main/source/video_decimator.h new file mode 100644 index 00000000..e152bb98 --- /dev/null +++ b/modules/video_processing/main/source/video_decimator.h @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +/* + * video_decimator.h + */ +#ifndef VPM_VIDEO_DECIMATOR_H +#define VPM_VIDEO_DECIMATOR_H + +#include "typedefs.h" +#include "module_common_types.h" + +namespace webrtc { + +class VPMVideoDecimator +{ +public: + VPMVideoDecimator(); + ~VPMVideoDecimator(); + + void Reset(); + + void EnableTemporalDecimation(bool enable); + + WebRtc_Word32 SetMaxFrameRate(WebRtc_UWord32 maxFrameRate); + WebRtc_Word32 SetTargetFrameRate(WebRtc_UWord32 frameRate); + + bool DropFrame(); + + void UpdateIncomingFrameRate(); + + // Get Decimated Frame Rate/Dimensions + WebRtc_UWord32 DecimatedFrameRate(); + + //Get input frame rate + WebRtc_UWord32 InputFrameRate(); + +private: + void ProcessIncomingFrameRate(WebRtc_Word64 now); + + enum { kFrameCountHistorySize = 90}; + enum { kFrameHistoryWindowMs = 2000}; + + // Temporal decimation + WebRtc_Word32 _overShootModifier; + WebRtc_UWord32 _dropCount; + WebRtc_UWord32 _keepCount; + WebRtc_UWord32 _targetFrameRate; + float _incomingFrameRate; + WebRtc_UWord32 _maxFrameRate; + WebRtc_Word64 _incomingFrameTimes[kFrameCountHistorySize]; + bool _enableTemporalDecimation; + +}; + +} //namespace + +#endif diff --git a/modules/video_processing/main/source/video_processing.gypi b/modules/video_processing/main/source/video_processing.gypi new file mode 100644 index 00000000..8d70a797 --- /dev/null +++ b/modules/video_processing/main/source/video_processing.gypi @@ -0,0 +1,88 @@ +# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. +# +# Use of this source code is governed by a BSD-style license +# that can be found in the LICENSE file in the root of the source +# tree. An additional intellectual property rights grant can be found +# in the file PATENTS. All contributing project authors may +# be found in the AUTHORS file in the root of the source tree. + +{ + 'targets': [ + { + 'target_name': 'video_processing', + 'type': '<(library)', + 'dependencies': [ + 'webrtc_utility', + '<(webrtc_root)/common_audio/common_audio.gyp:signal_processing', + '<(webrtc_root)/common_video/common_video.gyp:common_video', + '<(webrtc_root)/system_wrappers/source/system_wrappers.gyp:system_wrappers', + ], + 'include_dirs': [ + '../interface', + ], + 'direct_dependent_settings': { + 'include_dirs': [ + '../interface', + ], + }, + 'sources': [ + '../interface/video_processing.h', + '../interface/video_processing_defines.h', + 'brighten.cc', + 'brighten.h', + 'brightness_detection.cc', + 'brightness_detection.h', + 'color_enhancement.cc', + 'color_enhancement.h', + 'color_enhancement_private.h', + 'content_analysis.cc', + 'content_analysis.h', + 'deflickering.cc', + 'deflickering.h', + 'denoising.cc', + 'denoising.h', + 'frame_preprocessor.cc', + 'frame_preprocessor.h', + 'spatial_resampler.cc', + 'spatial_resampler.h', + 'video_decimator.cc', + 'video_decimator.h', + 'video_processing_impl.cc', + 'video_processing_impl.h', + ], + 'conditions': [ + ['target_arch=="ia32" or target_arch=="x64"', { + 'dependencies': [ 'video_processing_sse2', ], + }], + ], + }, + ], + 'conditions': [ + ['target_arch=="ia32" or target_arch=="x64"', { + 'targets': [ + { + 'target_name': 'video_processing_sse2', + 'type': '<(library)', + 'sources': [ + 'content_analysis_sse2.cc', + ], + 'include_dirs': [ + '../interface', + '../../../interface', + ], + 'conditions': [ + ['os_posix==1 and OS!="mac"', { + 'cflags': [ '-msse2', ], + }], + ['OS=="mac"', { + 'xcode_settings': { + 'OTHER_CFLAGS': [ '-msse2', ], + }, + }], + ], + }, + ], + }], + ], +} + diff --git a/modules/video_processing/main/source/video_processing_impl.cc b/modules/video_processing/main/source/video_processing_impl.cc new file mode 100644 index 00000000..346f6556 --- /dev/null +++ b/modules/video_processing/main/source/video_processing_impl.cc @@ -0,0 +1,298 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "video_processing_impl.h" +#include "critical_section_wrapper.h" +#include "trace.h" + +#include <cassert> + +namespace webrtc { + +namespace +{ + void + SetSubSampling(VideoProcessingModule::FrameStats* stats, + const WebRtc_Word32 width, + const WebRtc_Word32 height) + { + if (width * height >= 640 * 480) + { + stats->subSamplWidth = 3; + stats->subSamplHeight = 3; + } + else if (width * height >= 352 * 288) + { + stats->subSamplWidth = 2; + stats->subSamplHeight = 2; + } + else if (width * height >= 176 * 144) + { + stats->subSamplWidth = 1; + stats->subSamplHeight = 1; + } + else + { + stats->subSamplWidth = 0; + stats->subSamplHeight = 0; + } + } +} + +VideoProcessingModule* +VideoProcessingModule::Create(const WebRtc_Word32 id) +{ + + return new VideoProcessingModuleImpl(id); +} + +void +VideoProcessingModule::Destroy(VideoProcessingModule* module) +{ + if (module) + { + delete static_cast<VideoProcessingModuleImpl*>(module); + } +} + +WebRtc_Word32 +VideoProcessingModuleImpl::ChangeUniqueId(const WebRtc_Word32 id) +{ + CriticalSectionScoped mutex(&_mutex); + _id = id; + _brightnessDetection.ChangeUniqueId(id); + _deflickering.ChangeUniqueId(id); + _denoising.ChangeUniqueId(id); + _framePreProcessor.ChangeUniqueId(id); + return VPM_OK; +} + +WebRtc_Word32 +VideoProcessingModuleImpl::Id() const +{ + CriticalSectionScoped mutex(&_mutex); + return _id; +} + +VideoProcessingModuleImpl::VideoProcessingModuleImpl(const WebRtc_Word32 id) : + _id(id), + _mutex(*CriticalSectionWrapper::CreateCriticalSection()) +{ + _brightnessDetection.ChangeUniqueId(id); + _deflickering.ChangeUniqueId(id); + _denoising.ChangeUniqueId(id); + _framePreProcessor.ChangeUniqueId(id); + WEBRTC_TRACE(webrtc::kTraceMemory, webrtc::kTraceVideoPreocessing, _id, + "Created"); +} + + +VideoProcessingModuleImpl::~VideoProcessingModuleImpl() +{ + WEBRTC_TRACE(webrtc::kTraceMemory, webrtc::kTraceVideoPreocessing, _id, + "Destroyed"); + + delete &_mutex; +} + +void +VideoProcessingModuleImpl::Reset() +{ + CriticalSectionScoped mutex(&_mutex); + _deflickering.Reset(); + _denoising.Reset(); + _brightnessDetection.Reset(); + _framePreProcessor.Reset(); + +} + +WebRtc_Word32 +VideoProcessingModule::GetFrameStats(FrameStats* stats, + const VideoFrame& frame) +{ + if (frame.Buffer() == NULL) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, -1, + "Null frame pointer"); + return VPM_PARAMETER_ERROR; + } + + int width = frame.Width(); + int height = frame.Height(); + + if (width == 0 || height == 0) + { + WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoPreocessing, -1, + "Invalid frame size"); + return VPM_PARAMETER_ERROR; + } + + ClearFrameStats(stats); // The histogram needs to be zeroed out. + SetSubSampling(stats, width, height); + + uint8_t* buffer = frame.Buffer(); + // Compute histogram and sum of frame + for (int i = 0; i < height; i += (1 << stats->subSamplHeight)) + { + int k = i * width; + for (int j = 0; j < width; j += (1 << stats->subSamplWidth)) + { + stats->hist[buffer[k + j]]++; + stats->sum += buffer[k + j]; + } + } + + stats->numPixels = (width * height) / ((1 << stats->subSamplWidth) * + (1 << stats->subSamplHeight)); + assert(stats->numPixels > 0); + + // Compute mean value of frame + stats->mean = stats->sum / stats->numPixels; + + return VPM_OK; +} + +bool +VideoProcessingModule::ValidFrameStats(const FrameStats& stats) +{ + if (stats.numPixels == 0) + { + return false; + } + + return true; +} + +void +VideoProcessingModule::ClearFrameStats(FrameStats* stats) +{ + stats->mean = 0; + stats->sum = 0; + stats->numPixels = 0; + stats->subSamplWidth = 0; + stats->subSamplHeight = 0; + memset(stats->hist, 0, sizeof(stats->hist)); +} + +WebRtc_Word32 +VideoProcessingModule::ColorEnhancement(VideoFrame* frame) +{ + return VideoProcessing::ColorEnhancement(frame); +} + +WebRtc_Word32 +VideoProcessingModule::Brighten(VideoFrame* frame, int delta) +{ + return VideoProcessing::Brighten(frame, delta); +} + +WebRtc_Word32 +VideoProcessingModuleImpl::Deflickering(VideoFrame* frame, FrameStats* stats) +{ + CriticalSectionScoped mutex(&_mutex); + return _deflickering.ProcessFrame(frame, stats); +} + +WebRtc_Word32 +VideoProcessingModuleImpl::Denoising(VideoFrame* frame) +{ + CriticalSectionScoped mutex(&_mutex); + return _denoising.ProcessFrame(frame); +} + +WebRtc_Word32 +VideoProcessingModuleImpl::BrightnessDetection(const VideoFrame& frame, + const FrameStats& stats) +{ + CriticalSectionScoped mutex(&_mutex); + return _brightnessDetection.ProcessFrame(frame, stats); +} + + +void +VideoProcessingModuleImpl::EnableTemporalDecimation(bool enable) +{ + CriticalSectionScoped mutex(&_mutex); + _framePreProcessor.EnableTemporalDecimation(enable); +} + + +void +VideoProcessingModuleImpl::SetInputFrameResampleMode(VideoFrameResampling + resamplingMode) +{ + CriticalSectionScoped cs(&_mutex); + _framePreProcessor.SetInputFrameResampleMode(resamplingMode); +} + +WebRtc_Word32 +VideoProcessingModuleImpl::SetMaxFrameRate(WebRtc_UWord32 maxFrameRate) +{ + CriticalSectionScoped cs(&_mutex); + return _framePreProcessor.SetMaxFrameRate(maxFrameRate); + +} + +WebRtc_Word32 +VideoProcessingModuleImpl::SetTargetResolution(WebRtc_UWord32 width, + WebRtc_UWord32 height, + WebRtc_UWord32 frameRate) +{ + CriticalSectionScoped cs(&_mutex); + return _framePreProcessor.SetTargetResolution(width, height, frameRate); +} + + +WebRtc_UWord32 +VideoProcessingModuleImpl::DecimatedFrameRate() +{ + CriticalSectionScoped cs(&_mutex); + return _framePreProcessor.DecimatedFrameRate(); +} + + +WebRtc_UWord32 +VideoProcessingModuleImpl::DecimatedWidth() const +{ + CriticalSectionScoped cs(&_mutex); + return _framePreProcessor.DecimatedWidth(); +} + +WebRtc_UWord32 +VideoProcessingModuleImpl::DecimatedHeight() const +{ + CriticalSectionScoped cs(&_mutex); + return _framePreProcessor.DecimatedHeight(); +} + +WebRtc_Word32 +VideoProcessingModuleImpl::PreprocessFrame(const VideoFrame& frame, + VideoFrame **processedFrame) +{ + CriticalSectionScoped mutex(&_mutex); + return _framePreProcessor.PreprocessFrame(frame, processedFrame); +} + +VideoContentMetrics* +VideoProcessingModuleImpl::ContentMetrics() const +{ + CriticalSectionScoped mutex(&_mutex); + return _framePreProcessor.ContentMetrics(); +} + + +void +VideoProcessingModuleImpl::EnableContentAnalysis(bool enable) +{ + CriticalSectionScoped mutex(&_mutex); + _framePreProcessor.EnableContentAnalysis(enable); +} + +} //namespace diff --git a/modules/video_processing/main/source/video_processing_impl.h b/modules/video_processing/main/source/video_processing_impl.h new file mode 100644 index 00000000..43c4318a --- /dev/null +++ b/modules/video_processing/main/source/video_processing_impl.h @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef WEBRTC_MODULE_VIDEO_PROCESSING_IMPL_H +#define WEBRTC_MODULE_VIDEO_PROCESSING_IMPL_H + +#include "video_processing.h" +#include "brighten.h" +#include "brightness_detection.h" +#include "color_enhancement.h" +#include "deflickering.h" +#include "denoising.h" +#include "frame_preprocessor.h" + +namespace webrtc { +class CriticalSectionWrapper; + +class VideoProcessingModuleImpl : public VideoProcessingModule +{ +public: + + VideoProcessingModuleImpl(WebRtc_Word32 id); + + virtual ~VideoProcessingModuleImpl(); + + WebRtc_Word32 Id() const; + + virtual WebRtc_Word32 ChangeUniqueId(const WebRtc_Word32 id); + + virtual void Reset(); + + virtual WebRtc_Word32 Deflickering(VideoFrame* frame, + FrameStats* stats); + + virtual WebRtc_Word32 Denoising(VideoFrame* frame); + + virtual WebRtc_Word32 BrightnessDetection(const VideoFrame& frame, + const FrameStats& stats); + + //Frame pre-processor functions + + //Enable temporal decimation + virtual void EnableTemporalDecimation(bool enable); + + virtual void SetInputFrameResampleMode(VideoFrameResampling resamplingMode); + + //Enable content analysis + virtual void EnableContentAnalysis(bool enable); + + //Set max frame rate + virtual WebRtc_Word32 SetMaxFrameRate(WebRtc_UWord32 maxFrameRate); + + // Set Target Resolution: frame rate and dimension + virtual WebRtc_Word32 SetTargetResolution(WebRtc_UWord32 width, + WebRtc_UWord32 height, + WebRtc_UWord32 frameRate); + + + // Get decimated values: frame rate/dimension + virtual WebRtc_UWord32 DecimatedFrameRate(); + virtual WebRtc_UWord32 DecimatedWidth() const; + virtual WebRtc_UWord32 DecimatedHeight() const; + + // Preprocess: + // Pre-process incoming frame: Sample when needed and compute content + // metrics when enabled. + // If no resampling takes place - processedFrame is set to NULL. + virtual WebRtc_Word32 PreprocessFrame(const VideoFrame& frame, + VideoFrame** processedFrame); + virtual VideoContentMetrics* ContentMetrics() const; + +private: + WebRtc_Word32 _id; + CriticalSectionWrapper& _mutex; + + VPMDeflickering _deflickering; + VPMDenoising _denoising; + VPMBrightnessDetection _brightnessDetection; + VPMFramePreprocessor _framePreProcessor; +}; + +} // namespace + +#endif diff --git a/modules/video_processing/main/test/unit_test/brightness_detection_test.cc b/modules/video_processing/main/test/unit_test/brightness_detection_test.cc new file mode 100644 index 00000000..e8e68833 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/brightness_detection_test.cc @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "unit_test.h" +#include "video_processing.h" + +using namespace webrtc; + +TEST_F(VideoProcessingModuleTest, BrightnessDetection) +{ + WebRtc_UWord32 frameNum = 0; + WebRtc_Word32 brightnessWarning = 0; + WebRtc_UWord32 warningCount = 0; + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) == + _frameLength) + { + frameNum++; + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + ASSERT_GE(brightnessWarning = _vpm->BrightnessDetection(_videoFrame, + stats), 0); + if (brightnessWarning != VideoProcessingModule::kNoWarning) + { + warningCount++; + } + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + // Expect few warnings + float warningProportion = static_cast<float>(warningCount) / frameNum * 100; + printf("\nWarning proportions:\n"); + printf("Stock foreman: %.1f %%\n", warningProportion); + EXPECT_LT(warningProportion, 10); + + rewind(_sourceFile); + frameNum = 0; + warningCount = 0; + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) == + _frameLength && + frameNum < 300) + { + frameNum++; + + WebRtc_UWord8* frame = _videoFrame.Buffer(); + WebRtc_UWord32 yTmp = 0; + for (WebRtc_UWord32 yIdx = 0; yIdx < _width * _height; yIdx++) + { + yTmp = frame[yIdx] << 1; + if (yTmp > 255) + { + yTmp = 255; + } + frame[yIdx] = static_cast<WebRtc_UWord8>(yTmp); + } + + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + ASSERT_GE(brightnessWarning = _vpm->BrightnessDetection(_videoFrame, + stats), 0); + EXPECT_NE(VideoProcessingModule::kDarkWarning, brightnessWarning); + if (brightnessWarning == VideoProcessingModule::kBrightWarning) + { + warningCount++; + } + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + // Expect many brightness warnings + warningProportion = static_cast<float>(warningCount) / frameNum * 100; + printf("Bright foreman: %.1f %%\n", warningProportion); + EXPECT_GT(warningProportion, 95); + + rewind(_sourceFile); + frameNum = 0; + warningCount = 0; + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) == _frameLength && + frameNum < 300) + { + frameNum++; + + WebRtc_UWord8* frame = _videoFrame.Buffer(); + WebRtc_Word32 yTmp = 0; + for (WebRtc_UWord32 yIdx = 0; yIdx < _width * _height; yIdx++) + { + yTmp = frame[yIdx] >> 1; + frame[yIdx] = static_cast<WebRtc_UWord8>(yTmp); + } + + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + ASSERT_GE(brightnessWarning = _vpm->BrightnessDetection(_videoFrame, + stats), 0); + EXPECT_NE(VideoProcessingModule::kBrightWarning, brightnessWarning); + if (brightnessWarning == VideoProcessingModule::kDarkWarning) + { + warningCount++; + } + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + // Expect many darkness warnings + warningProportion = static_cast<float>(warningCount) / frameNum * 100; + printf("Dark foreman: %.1f %%\n\n", warningProportion); + EXPECT_GT(warningProportion, 90); +} diff --git a/modules/video_processing/main/test/unit_test/color_enhancement_test.cc b/modules/video_processing/main/test/unit_test/color_enhancement_test.cc new file mode 100644 index 00000000..68bf43ec --- /dev/null +++ b/modules/video_processing/main/test/unit_test/color_enhancement_test.cc @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <cstdio> +#include <cstdlib> + +#include "common_video/libyuv/include/webrtc_libyuv.h" +#include "modules/video_processing/main/interface/video_processing.h" +#include "modules/video_processing/main/test/unit_test/unit_test.h" +#include "system_wrappers/interface/tick_util.h" +#include "testsupport/fileutils.h" + +namespace webrtc { + +TEST_F(VideoProcessingModuleTest, ColorEnhancement) +{ + TickTime t0; + TickTime t1; + TickInterval accTicks; + + // Use a shorter version of the Foreman clip for this test. + fclose(_sourceFile); + const std::string video_file = + webrtc::test::ResourcePath("foreman_cif_short", "yuv"); + _sourceFile = fopen(video_file.c_str(), "rb"); + ASSERT_TRUE(_sourceFile != NULL) << + "Cannot read source file: " + video_file + "\n"; + + std::string output_file = webrtc::test::OutputPath() + + "foremanColorEnhancedVPM_cif_short.yuv"; + FILE* modFile = fopen(output_file.c_str(), "w+b"); + ASSERT_TRUE(modFile != NULL) << "Could not open output file.\n"; + + WebRtc_UWord32 frameNum = 0; + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) == _frameLength) + { + frameNum++; + t0 = TickTime::Now(); + ASSERT_EQ(0, VideoProcessingModule::ColorEnhancement(&_videoFrame)); + t1 = TickTime::Now(); + accTicks += t1 - t0; + if (fwrite(_videoFrame.Buffer(), 1, _frameLength, + modFile) != _frameLength) { + return; + } + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + printf("\nTime per frame: %d us \n", + static_cast<int>(accTicks.Microseconds() / frameNum)); + rewind(modFile); + + printf("Comparing files...\n\n"); + std::string reference_filename = + webrtc::test::ResourcePath("foremanColorEnhanced_cif_short", "yuv"); + FILE* refFile = fopen(reference_filename.c_str(), "rb"); + ASSERT_TRUE(refFile != NULL) << "Cannot open reference file: " << + reference_filename << "\n" + "Create the reference by running Matlab script createTable.m."; + + // get file lenghts + ASSERT_EQ(0, fseek(refFile, 0L, SEEK_END)); + long refLen = ftell(refFile); + ASSERT_NE(-1L, refLen); + rewind(refFile); + ASSERT_EQ(0, fseek(modFile, 0L, SEEK_END)); + long testLen = ftell(modFile); + ASSERT_NE(-1L, testLen); + rewind(modFile); + ASSERT_EQ(refLen, testLen) << "File lengths differ."; + + VideoFrame refVideoFrame; + refVideoFrame.VerifyAndAllocate(_frameLength); + refVideoFrame.SetWidth(_width); + refVideoFrame.SetHeight(_height); + + // Compare frame-by-frame. + while (fread(_videoFrame.Buffer(), 1, _frameLength, modFile) == _frameLength) + { + ASSERT_EQ(_frameLength, fread(refVideoFrame.Buffer(), 1, _frameLength, refFile)); + EXPECT_EQ(0, memcmp(_videoFrame.Buffer(), refVideoFrame.Buffer(), _frameLength)); + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + // Verify that all color pixels are enhanced, and no luminance values are + // altered. + + WebRtc_UWord8 *testFrame = new WebRtc_UWord8[_frameLength]; + + // Use value 128 as probe value, since we know that this will be changed + // in the enhancement. + memset(testFrame, 128, _frameLength); + + VideoFrame testVideoFrame; + testVideoFrame.CopyFrame(_frameLength, testFrame); + testVideoFrame.SetWidth(_width); + testVideoFrame.SetHeight(_height); + ASSERT_EQ(0, VideoProcessingModule::ColorEnhancement(&testVideoFrame)); + + EXPECT_EQ(0, memcmp(testVideoFrame.Buffer(), testFrame, _width * _height)) + << "Function is modifying the luminance."; + + EXPECT_NE(0, memcmp(testVideoFrame.Buffer() + _width * _height, + &testFrame[_width * _height], _width * _height / 2)) << + "Function is not modifying all chrominance pixels"; + + ASSERT_EQ(0, fclose(refFile)); + ASSERT_EQ(0, fclose(modFile)); + delete [] testFrame; +} + +} // namespace webrtc diff --git a/modules/video_processing/main/test/unit_test/content_metrics_test.cc b/modules/video_processing/main/test/unit_test/content_metrics_test.cc new file mode 100644 index 00000000..0247e995 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/content_metrics_test.cc @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "modules/video_processing/main/interface/video_processing.h" +#include "modules/video_processing/main/source/content_analysis.h" +#include "modules/video_processing/main/test/unit_test/unit_test.h" + +namespace webrtc { + +TEST_F(VideoProcessingModuleTest, ContentAnalysis) +{ + VPMContentAnalysis _ca_c(false); + VPMContentAnalysis _ca_sse(true); + VideoContentMetrics *_cM_c, *_cM_SSE; + + _ca_c.Initialize(_width,_height); + _ca_sse.Initialize(_width,_height); + + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) + == _frameLength) + { + _cM_c = _ca_c.ComputeContentMetrics(_videoFrame); + _cM_SSE = _ca_sse.ComputeContentMetrics(_videoFrame); + + ASSERT_EQ(_cM_c->spatial_pred_err, _cM_SSE->spatial_pred_err); + ASSERT_EQ(_cM_c->spatial_pred_err_v, _cM_SSE->spatial_pred_err_v); + ASSERT_EQ(_cM_c->spatial_pred_err_h, _cM_SSE->spatial_pred_err_h); + ASSERT_EQ(_cM_c->motion_magnitude, _cM_SSE->motion_magnitude); + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; +} + +} // namespace webrtc diff --git a/modules/video_processing/main/test/unit_test/createTable.m b/modules/video_processing/main/test/unit_test/createTable.m new file mode 100644 index 00000000..2c7fb522 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/createTable.m @@ -0,0 +1,179 @@ +% Create the color enhancement look-up table and write it to +% file colorEnhancementTable.cpp. Copy contents of that file into +% the source file for the color enhancement function. + +clear +close all + + +% First, define the color enhancement in a normalized domain + +% Compander function is defined in three radial zones. +% 1. From 0 to radius r0, the compander function +% is a second-order polynomial intersecting the points (0,0) +% and (r0, r0), and with a slope B in (0,0). +% 2. From r0 to r1, the compander is a third-order polynomial +% intersecting the points (r0, r0) and (r1, r1), and with the +% same slope as the first part in the point (r0, r0) and slope +% equal to 1 in (r1, r1). +% 3. For radii larger than r1, the compander function is the +% unity scale function (no scaling at all). + +r0=0.07; % Dead zone radius (must be > 0) +r1=0.6; % Enhancement zone radius (must be > r0 and < 1) +B=0.2; % initial slope of compander function (between 0 and 1) + +x0=linspace(0,r0).'; % zone 1 +x1=linspace(r0,r1).'; % zone 2 +x2=linspace(r1,1).'; % zone 3 + +A=(1-B)/r0; +f0=A*x0.^2+B*x0; % compander function in zone 1 + +% equation system for finding second zone parameters +M=[r0^3 r0^2 r0 1; + 3*r0^2 2*r0 1 0; + 3*r1^2 2*r1 1 0; + r1^3 r1^2 r1 1]; +m=[A*r0^2+B*r0; 2*A*r0+B; 1; r1]; +% solve equations +theta=M\m; + +% compander function in zone 1 +f1=[x1.^3 x1.^2 x1 ones(size(x1))]*theta; + +x=[x0; x1; x2]; +f=[f0; f1; x2]; + +% plot it +figure(1) +plot(x,f,x,x,':') +xlabel('Normalized radius') +ylabel('Modified radius') + + +% Now, create the look-up table in the integer color space +[U,V]=meshgrid(0:255, 0:255); % U-V space +U0=U; +V0=V; + +% Conversion matrix from normalized YUV to RGB +T=[1 0 1.13983; 1 -0.39465 -0.58060; 1 2.03211 0]; +Ylum=0.5; + +figure(2) +Z(:,:,1)=Ylum + (U-127)/256*T(1,2) + (V-127)/256*T(1,3); +Z(:,:,2)=Ylum + (U-127)/256*T(2,2) + (V-127)/256*T(2,3); +Z(:,:,3)=Ylum + (U-127)/256*T(3,2) + (V-127)/256*T(3,3); +Z=max(Z,0); +Z=min(Z,1); +subplot(121) +image(Z); +axis square +axis off +set(gcf,'color','k') + +R = sqrt((U-127).^2 + (V-127).^2); +Rnorm = R/127; +RnormMod = Rnorm; +RnormMod(RnormMod==0)=1; % avoid division with zero + +% find indices to pixels in dead-zone (zone 1) +ix=find(Rnorm<=r0); +scaleMatrix = (A*Rnorm(ix).^2 + B*Rnorm(ix))./RnormMod(ix); +U(ix)=(U(ix)-127).*scaleMatrix+127; +V(ix)=(V(ix)-127).*scaleMatrix+127; + +% find indices to pixels in zone 2 +ix=find(Rnorm>r0 & Rnorm<=r1); +scaleMatrix = (theta(1)*Rnorm(ix).^3 + theta(2)*Rnorm(ix).^2 + ... + theta(3)*Rnorm(ix) + theta(4)) ./ RnormMod(ix); +U(ix)=(U(ix)-127).*scaleMatrix + 127; +V(ix)=(V(ix)-127).*scaleMatrix + 127; + +% round to integer values and saturate +U=round(U); +V=round(V); +U=max(min(U,255),0); +V=max(min(V,255),0); + +Z(:,:,1)=Ylum + (U-127)/256*T(1,2) + (V-127)/256*T(1,3); +Z(:,:,2)=Ylum + (U-127)/256*T(2,2) + (V-127)/256*T(2,3); +Z(:,:,3)=Ylum + (U-127)/256*T(3,2) + (V-127)/256*T(3,3); +Z=max(Z,0); +Z=min(Z,1); +subplot(122) +image(Z); +axis square +axis off + +figure(3) +subplot(121) +mesh(U-U0) +subplot(122) +mesh(V-V0) + + + +% Last, write to file +% Write only one matrix, since U=V' + +fid = fopen('../out/Debug/colorEnhancementTable.h','wt'); +if fid==-1 + error('Cannot open file colorEnhancementTable.cpp'); +end + +fprintf(fid,'//colorEnhancementTable.h\n\n'); +fprintf(fid,'//Copy the constant table to the appropriate header file.\n\n'); + +fprintf(fid,'//Table created with Matlab script createTable.m\n\n'); +fprintf(fid,'//Usage:\n'); +fprintf(fid,'// Umod=colorTable[U][V]\n'); +fprintf(fid,'// Vmod=colorTable[V][U]\n'); + +fprintf(fid,'static unsigned char colorTable[%i][%i] = {\n', size(U,1), size(U,2)); + +for u=1:size(U,2) + fprintf(fid,' {%i', U(1,u)); + for v=2:size(U,1) + fprintf(fid,', %i', U(v,u)); + end + fprintf(fid,'}'); + if u<size(U,2) + fprintf(fid,','); + end + fprintf(fid,'\n'); +end +fprintf(fid,'};\n\n'); +fclose(fid); +fprintf('done'); + + +answ=input('Create test vector (takes some time...)? y/n : ','s'); +if answ ~= 'y' + return +end + +% Also, create test vectors + +% Read test file foreman.yuv +fprintf('Reading test file...') +[y,u,v]=readYUV420file('../out/Debug/testFiles/foreman_cif.yuv',352,288); +fprintf(' done\n'); +unew=uint8(zeros(size(u))); +vnew=uint8(zeros(size(v))); + +% traverse all frames +for k=1:size(y,3) + fprintf('Frame %i\n', k); + for r=1:size(u,1) + for c=1:size(u,2) + unew(r,c,k) = uint8(U(double(v(r,c,k))+1, double(u(r,c,k))+1)); + vnew(r,c,k) = uint8(V(double(v(r,c,k))+1, double(u(r,c,k))+1)); + end + end +end + +fprintf('\nWriting modified test file...') +writeYUV420file('../out/Debug/foremanColorEnhanced.yuv',y,unew,vnew); +fprintf(' done\n'); diff --git a/modules/video_processing/main/test/unit_test/deflickering_test.cc b/modules/video_processing/main/test/unit_test/deflickering_test.cc new file mode 100644 index 00000000..7119bdb8 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/deflickering_test.cc @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <cstdio> +#include <cstdlib> + +#include "modules/video_processing/main/interface/video_processing.h" +#include "modules/video_processing/main/test/unit_test/unit_test.h" +#include "system_wrappers/interface/tick_util.h" +#include "testsupport/fileutils.h" + +namespace webrtc { + +TEST_F(VideoProcessingModuleTest, Deflickering) +{ + enum { NumRuns = 30 }; + WebRtc_UWord32 frameNum = 0; + const WebRtc_UWord32 frameRate = 15; + + WebRtc_Word64 minRuntime = 0; + WebRtc_Word64 avgRuntime = 0; + + // Close automatically opened Foreman. + fclose(_sourceFile); + const std::string input_file = + webrtc::test::ResourcePath("deflicker_before_cif_short", "yuv"); + _sourceFile = fopen(input_file.c_str(), "rb"); + ASSERT_TRUE(_sourceFile != NULL) << + "Cannot read input file: " << input_file << "\n"; + + const std::string output_file = + webrtc::test::OutputPath() + "deflicker_output_cif_short.yuv"; + FILE* deflickerFile = fopen(output_file.c_str(), "wb"); + ASSERT_TRUE(deflickerFile != NULL) << + "Could not open output file: " << output_file << "\n"; + + printf("\nRun time [us / frame]:\n"); + for (WebRtc_UWord32 runIdx = 0; runIdx < NumRuns; runIdx++) + { + TickTime t0; + TickTime t1; + TickInterval accTicks; + WebRtc_UWord32 timeStamp = 1; + + frameNum = 0; + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) == _frameLength) + { + frameNum++; + _videoFrame.SetTimeStamp(timeStamp); + + t0 = TickTime::Now(); + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + ASSERT_EQ(0, _vpm->Deflickering(&_videoFrame, &stats)); + t1 = TickTime::Now(); + accTicks += t1 - t0; + + if (runIdx == 0) + { + if (fwrite(_videoFrame.Buffer(), 1, _frameLength, + deflickerFile) != _frameLength) { + return; + } + } + timeStamp += (90000 / frameRate); + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + printf("%u\n", static_cast<int>(accTicks.Microseconds() / frameNum)); + if (accTicks.Microseconds() < minRuntime || runIdx == 0) + { + minRuntime = accTicks.Microseconds(); + } + avgRuntime += accTicks.Microseconds(); + + rewind(_sourceFile); + } + ASSERT_EQ(0, fclose(deflickerFile)); + // TODO(kjellander): Add verification of deflicker output file. + + printf("\nAverage run time = %d us / frame\n", + static_cast<int>(avgRuntime / frameNum / NumRuns)); + printf("Min run time = %d us / frame\n\n", + static_cast<int>(minRuntime / frameNum)); +} + +} // namespace webrtc diff --git a/modules/video_processing/main/test/unit_test/denoising_test.cc b/modules/video_processing/main/test/unit_test/denoising_test.cc new file mode 100644 index 00000000..a4d97619 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/denoising_test.cc @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <cstdio> +#include <cstdlib> + +#include "modules/video_processing/main/interface/video_processing.h" +#include "modules/video_processing/main/test/unit_test/unit_test.h" +#include "system_wrappers/interface/tick_util.h" +#include "testsupport/fileutils.h" + +namespace webrtc { + +TEST_F(VideoProcessingModuleTest, Denoising) +{ + enum { NumRuns = 10 }; + WebRtc_UWord32 frameNum = 0; + + WebRtc_Word64 minRuntime = 0; + WebRtc_Word64 avgRuntime = 0; + + const std::string denoise_filename = + webrtc::test::OutputPath() + "denoise_testfile.yuv"; + FILE* denoiseFile = fopen(denoise_filename.c_str(), "wb"); + ASSERT_TRUE(denoiseFile != NULL) << + "Could not open output file: " << denoise_filename << "\n"; + + const std::string noise_filename = + webrtc::test::OutputPath() + "noise_testfile.yuv"; + FILE* noiseFile = fopen(noise_filename.c_str(), "wb"); + ASSERT_TRUE(noiseFile != NULL) << + "Could not open noisy file: " << noise_filename << "\n"; + + printf("\nRun time [us / frame]:\n"); + for (WebRtc_UWord32 runIdx = 0; runIdx < NumRuns; runIdx++) + { + TickTime t0; + TickTime t1; + TickInterval accTicks; + WebRtc_Word32 modifiedPixels = 0; + + frameNum = 0; + while (fread(_videoFrame.Buffer(), 1, _frameLength, _sourceFile) == _frameLength) + { + frameNum++; + WebRtc_UWord8* sourceBuffer = _videoFrame.Buffer(); + + // Add noise to a part in video stream + // Random noise + // TODO: investigate the effectiveness of this test. + + //for(WebRtc_UWord32 ir = 0; ir < _frameLength; ir++) + // sourceBuffer[ir] = 128 + for (WebRtc_UWord32 ir = 0; ir < _height; ir++) + { + WebRtc_UWord32 ik = ir * _width; + for (WebRtc_UWord32 ic = 0; ic < _width; ic++) + { + WebRtc_UWord8 r = rand() % 16; + r -= 8; + if (ir < _height / 4) + r = 0; + if (ir >= 3 * _height / 4) + r = 0; + if (ic < _width / 4) + r = 0; + if (ic >= 3 * _width / 4) + r = 0; + + /*WebRtc_UWord8 pixelValue = 0; + if (ir >= _height / 2) + { // Region 3 or 4 + pixelValue = 170; + } + if (ic >= _width / 2) + { // Region 2 or 4 + pixelValue += 85; + } + pixelValue += r; + sourceBuffer[ik + ic] = pixelValue; + */ + sourceBuffer[ik + ic] += r; + } + } + + if (runIdx == 0) + { + if (fwrite(_videoFrame.Buffer(), 1, _frameLength, + noiseFile) != _frameLength) { + return; + } + } + + t0 = TickTime::Now(); + ASSERT_GE(modifiedPixels = _vpm->Denoising(&_videoFrame), 0); + t1 = TickTime::Now(); + accTicks += t1 - t0; + + if (runIdx == 0) + { + if (fwrite(_videoFrame.Buffer(), 1, _frameLength, + denoiseFile) != _frameLength) { + return; + } + } + } + ASSERT_NE(0, feof(_sourceFile)) << "Error reading source file"; + + printf("%u\n", static_cast<int>(accTicks.Microseconds() / frameNum)); + if (accTicks.Microseconds() < minRuntime || runIdx == 0) + { + minRuntime = accTicks.Microseconds(); + } + avgRuntime += accTicks.Microseconds(); + + rewind(_sourceFile); + } + ASSERT_EQ(0, fclose(denoiseFile)); + ASSERT_EQ(0, fclose(noiseFile)); + printf("\nAverage run time = %d us / frame\n", + static_cast<int>(avgRuntime / frameNum / NumRuns)); + printf("Min run time = %d us / frame\n\n", + static_cast<int>(minRuntime / frameNum)); +} + +} // namespace webrtc diff --git a/modules/video_processing/main/test/unit_test/readYUV420file.m b/modules/video_processing/main/test/unit_test/readYUV420file.m new file mode 100644 index 00000000..03013efd --- /dev/null +++ b/modules/video_processing/main/test/unit_test/readYUV420file.m @@ -0,0 +1,45 @@ +function [Y,U,V] = readYUV420file(filename, width, height) +% [Y,U,V] = readYUVfile(filename, width, height) + +fid = fopen(filename,'rb'); +if fid==-1 + error(['Cannot open file ' filename]); +end + +% Number of pixels per image +nPx=width*height; + +% nPx bytes luminance, nPx/4 bytes U, nPx/4 bytes V +frameSizeBytes = nPx*1.5; + +% calculate number of frames +fseek(fid,0,'eof'); % move to end of file +fileLen=ftell(fid); % number of bytes +fseek(fid,0,'bof'); % rewind to start + +% calculate number of frames +numFrames = floor(fileLen/frameSizeBytes); + +Y=uint8(zeros(height,width,numFrames)); +U=uint8(zeros(height/2,width/2,numFrames)); +V=uint8(zeros(height/2,width/2,numFrames)); + +[X,nBytes]=fread(fid, frameSizeBytes, 'uchar'); + +for k=1:numFrames + + % Store luminance + Y(:,:,k)=uint8(reshape(X(1:nPx), width, height).'); + + % Store U channel + U(:,:,k)=uint8(reshape(X(nPx + (1:nPx/4)), width/2, height/2).'); + + % Store V channel + V(:,:,k)=uint8(reshape(X(nPx + nPx/4 + (1:nPx/4)), width/2, height/2).'); + + % Read next frame + [X,nBytes]=fread(fid, frameSizeBytes, 'uchar'); +end + + +fclose(fid); diff --git a/modules/video_processing/main/test/unit_test/unit_test.cc b/modules/video_processing/main/test/unit_test/unit_test.cc new file mode 100644 index 00000000..f6d7d10b --- /dev/null +++ b/modules/video_processing/main/test/unit_test/unit_test.cc @@ -0,0 +1,372 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "modules/video_processing/main/test/unit_test/unit_test.h" + +#include <string> + +#include "common_video/libyuv/include/webrtc_libyuv.h" +#include "system_wrappers/interface/tick_util.h" +#include "testsupport/fileutils.h" + +namespace webrtc { + +// The |sourceFrame| is scaled to |target_width|,|target_height|, using the +// filter mode set to |mode|. The |expected_psnr| is used to verify basic +// quality when the resampled frame is scaled back up/down to the +// original/source size. |expected_psnr| is set to be ~0.1/0.05dB lower than +// actual PSNR verified under the same conditions. +void TestSize(const VideoFrame& sourceFrame, int target_width, + int target_height, int mode, double expected_psnr, + VideoProcessingModule* vpm); + +VideoProcessingModuleTest::VideoProcessingModuleTest() : + _vpm(NULL), + _sourceFile(NULL), + _width(352), + _height(288), + _frameLength(CalcBufferSize(kI420, 352, 288)) +{ +} + +void VideoProcessingModuleTest::SetUp() +{ + _vpm = VideoProcessingModule::Create(0); + ASSERT_TRUE(_vpm != NULL); + + ASSERT_EQ(0, _videoFrame.VerifyAndAllocate(_frameLength)); + _videoFrame.SetWidth(_width); + _videoFrame.SetHeight(_height); + + const std::string video_file = + webrtc::test::ResourcePath("foreman_cif", "yuv"); + _sourceFile = fopen(video_file.c_str(),"rb"); + ASSERT_TRUE(_sourceFile != NULL) << + "Cannot read source file: " + video_file + "\n"; +} + +void VideoProcessingModuleTest::TearDown() +{ + if (_sourceFile != NULL) { + ASSERT_EQ(0, fclose(_sourceFile)); + } + _sourceFile = NULL; + + if (_vpm != NULL) { + VideoProcessingModule::Destroy(_vpm); + } + _vpm = NULL; +} + +TEST_F(VideoProcessingModuleTest, HandleNullBuffer) +{ + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + // Video frame with unallocated buffer. + VideoFrame videoFrame; + videoFrame.SetWidth(_width); + videoFrame.SetHeight(_height); + + EXPECT_EQ(-3, _vpm->GetFrameStats(&stats, videoFrame)); + + EXPECT_EQ(-1, _vpm->ColorEnhancement(&videoFrame)); + + EXPECT_EQ(-1, _vpm->Deflickering(&videoFrame, &stats)); + + EXPECT_EQ(-1, _vpm->Denoising(&videoFrame)); + + EXPECT_EQ(-3, _vpm->BrightnessDetection(videoFrame, stats)); +} + +TEST_F(VideoProcessingModuleTest, HandleBadStats) +{ + VideoProcessingModule::FrameStats stats; + + ASSERT_EQ(_frameLength, fread(_videoFrame.Buffer(), 1, _frameLength, + _sourceFile)); + + _videoFrame.SetWidth(_width); + _videoFrame.SetHeight(_height); + EXPECT_EQ(-1, _vpm->Deflickering(&_videoFrame, &stats)); + + EXPECT_EQ(-3, _vpm->BrightnessDetection(_videoFrame, stats)); +} + +TEST_F(VideoProcessingModuleTest, HandleBadSize) +{ + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + + // Bad width + _videoFrame.SetWidth(0); + EXPECT_EQ(-3, _vpm->GetFrameStats(&stats, _videoFrame)); + + EXPECT_EQ(-1, _vpm->ColorEnhancement(&_videoFrame)); + + EXPECT_EQ(-1, _vpm->Deflickering(&_videoFrame, &stats)); + + EXPECT_EQ(-1, _vpm->Denoising(&_videoFrame)); + + EXPECT_EQ(-3, _vpm->BrightnessDetection(_videoFrame, stats)); + + // Bad height + _videoFrame.SetWidth(_width); + _videoFrame.SetHeight(0); + EXPECT_EQ(-3, _vpm->GetFrameStats(&stats, _videoFrame)); + + EXPECT_EQ(-1, _vpm->ColorEnhancement(&_videoFrame)); + + EXPECT_EQ(-1, _vpm->Deflickering(&_videoFrame, &stats)); + + EXPECT_EQ(-1, _vpm->Denoising(&_videoFrame)); + + EXPECT_EQ(-3, _vpm->BrightnessDetection(_videoFrame, stats)); + + EXPECT_EQ(VPM_PARAMETER_ERROR, _vpm->SetTargetResolution(0,0,0)); + EXPECT_EQ(VPM_PARAMETER_ERROR, _vpm->SetMaxFrameRate(0)); + + VideoFrame *outFrame = NULL; + EXPECT_EQ(VPM_PARAMETER_ERROR, _vpm->PreprocessFrame(_videoFrame, + &outFrame)); +} + +TEST_F(VideoProcessingModuleTest, IdenticalResultsAfterReset) +{ + VideoFrame videoFrame2; + VideoProcessingModule::FrameStats stats; + + ASSERT_EQ(0, videoFrame2.VerifyAndAllocate(_frameLength)); + videoFrame2.SetWidth(_width); + videoFrame2.SetHeight(_height); + + // Only testing non-static functions here. + ASSERT_EQ(_frameLength, fread(_videoFrame.Buffer(), 1, _frameLength, + _sourceFile)); + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + memcpy(videoFrame2.Buffer(), _videoFrame.Buffer(), _frameLength); + ASSERT_EQ(0, _vpm->Deflickering(&_videoFrame, &stats)); + _vpm->Reset(); + // Retrieve frame stats again in case Deflickering() has zeroed them. + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, videoFrame2)); + ASSERT_EQ(0, _vpm->Deflickering(&videoFrame2, &stats)); + EXPECT_EQ(0, memcmp(_videoFrame.Buffer(), videoFrame2.Buffer(), + _frameLength)); + + ASSERT_EQ(_frameLength, fread(_videoFrame.Buffer(), 1, _frameLength, + _sourceFile)); + memcpy(videoFrame2.Buffer(), _videoFrame.Buffer(), _frameLength); + ASSERT_GE(_vpm->Denoising(&_videoFrame), 0); + _vpm->Reset(); + ASSERT_GE(_vpm->Denoising(&videoFrame2), 0); + EXPECT_EQ(0, memcmp(_videoFrame.Buffer(), videoFrame2.Buffer(), + _frameLength)); + + ASSERT_EQ(_frameLength, fread(_videoFrame.Buffer(), 1, _frameLength, + _sourceFile)); + ASSERT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + memcpy(videoFrame2.Buffer(), _videoFrame.Buffer(), _frameLength); + ASSERT_EQ(0, _vpm->BrightnessDetection(_videoFrame, stats)); + _vpm->Reset(); + ASSERT_EQ(0, _vpm->BrightnessDetection(videoFrame2, stats)); + EXPECT_EQ(0, memcmp(_videoFrame.Buffer(), videoFrame2.Buffer(), + _frameLength)); +} + +TEST_F(VideoProcessingModuleTest, FrameStats) +{ + VideoProcessingModule::FrameStats stats; + ASSERT_EQ(_frameLength, fread(_videoFrame.Buffer(), 1, _frameLength, + _sourceFile)); + + EXPECT_FALSE(_vpm->ValidFrameStats(stats)); + EXPECT_EQ(0, _vpm->GetFrameStats(&stats, _videoFrame)); + EXPECT_TRUE(_vpm->ValidFrameStats(stats)); + + printf("\nFrameStats\n"); + printf("mean: %u\nnumPixels: %u\nsubSamplWidth: " + "%u\nsumSamplHeight: %u\nsum: %u\n\n", + static_cast<unsigned int>(stats.mean), + static_cast<unsigned int>(stats.numPixels), + static_cast<unsigned int>(stats.subSamplHeight), + static_cast<unsigned int>(stats.subSamplWidth), + static_cast<unsigned int>(stats.sum)); + + _vpm->ClearFrameStats(&stats); + EXPECT_FALSE(_vpm->ValidFrameStats(stats)); +} + +TEST_F(VideoProcessingModuleTest, PreprocessorLogic) +{ + // Disable temporal sampling + _vpm->EnableTemporalDecimation(false); + ASSERT_EQ(VPM_OK, _vpm->SetMaxFrameRate(30)); + ASSERT_EQ(VPM_OK, _vpm->SetTargetResolution(100, 100, 15)); + // Revert + _vpm->EnableTemporalDecimation(true); + ASSERT_EQ(VPM_OK, _vpm->SetTargetResolution(100, 100, 30)); + // Disable spatial sampling + _vpm->SetInputFrameResampleMode(kNoRescaling); + ASSERT_EQ(VPM_OK, _vpm->SetTargetResolution(100, 100, 30)); + VideoFrame *outFrame = NULL; + ASSERT_EQ(VPM_OK, _vpm->PreprocessFrame(_videoFrame, &outFrame)); + // No rescaling=> output frame = NULL + ASSERT_TRUE(outFrame == NULL); +} + +TEST_F(VideoProcessingModuleTest, Resampler) +{ + enum { NumRuns = 1 }; + + WebRtc_Word64 minRuntime = 0; + WebRtc_Word64 avgRuntime = 0; + + TickTime t0; + TickTime t1; + TickInterval accTicks; + WebRtc_Word32 height = 288; + WebRtc_Word32 width = 352; + WebRtc_Word32 lengthSourceFrame = width*height*3/2; + + rewind(_sourceFile); + ASSERT_TRUE(_sourceFile != NULL) << + "Cannot read input file \n"; + + // CA not needed here + _vpm->EnableContentAnalysis(false); + // no temporal decimation + _vpm->EnableTemporalDecimation(false); + + // Reading test frame + VideoFrame sourceFrame; + ASSERT_EQ(0, sourceFrame.VerifyAndAllocate(lengthSourceFrame)); + EXPECT_GT(fread(sourceFrame.Buffer(), 1, lengthSourceFrame, _sourceFile), 0u); + ASSERT_EQ(0, sourceFrame.SetLength(lengthSourceFrame)); + sourceFrame.SetHeight(height); + sourceFrame.SetWidth(width); + + for (WebRtc_UWord32 runIdx = 0; runIdx < NumRuns; runIdx++) + { + // initiate test timer + t0 = TickTime::Now(); + + // Test scaling to different sizes: source is of |width|/|height| = 352/288. + // Scaling mode in VPM is currently fixed to kScaleBox (mode = 3). + TestSize(sourceFrame, 100, 50, 3, 24.0, _vpm); + TestSize(sourceFrame, 352/4, 288/4, 3, 25.2, _vpm); + TestSize(sourceFrame, 352/2, 288/2, 3, 28.1, _vpm); + TestSize(sourceFrame, 352, 288, 3, -1, _vpm); // no resampling. + TestSize(sourceFrame, 2*352, 2*288, 3, 32.2, _vpm); + TestSize(sourceFrame, 400, 256, 3, 31.3, _vpm); + TestSize(sourceFrame, 480, 640, 3, 32.15, _vpm); + TestSize(sourceFrame, 960, 720, 3, 32.2, _vpm); + TestSize(sourceFrame, 1280, 720, 3, 32.15, _vpm); + // Upsampling to odd size. + TestSize(sourceFrame, 501, 333, 3, 32.05, _vpm); + // Downsample to odd size. + TestSize(sourceFrame, 281, 175, 3, 29.3, _vpm); + + // stop timer + t1 = TickTime::Now(); + accTicks += t1 - t0; + + if (accTicks.Microseconds() < minRuntime || runIdx == 0) { + minRuntime = accTicks.Microseconds(); + } + avgRuntime += accTicks.Microseconds(); + } + + sourceFrame.Free(); + + printf("\nAverage run time = %d us / frame\n", + //static_cast<int>(avgRuntime / frameNum / NumRuns)); + static_cast<int>(avgRuntime)); + printf("Min run time = %d us / frame\n\n", + //static_cast<int>(minRuntime / frameNum)); + static_cast<int>(minRuntime)); +} + +void TestSize(const VideoFrame& source_frame, int target_width, + int target_height, int mode, double expected_psnr, + VideoProcessingModule* vpm) { + int source_width = source_frame.Width(); + int source_height = source_frame.Height(); + VideoFrame* out_frame = NULL; + + ASSERT_EQ(VPM_OK, vpm->SetTargetResolution(target_width, target_height, 30)); + ASSERT_EQ(VPM_OK, vpm->PreprocessFrame(source_frame, &out_frame)); + + // If the frame was resampled (scale changed) then: + // (1) verify the new size and write out processed frame for viewing. + // (2) scale the resampled frame (|out_frame|) back to the original size and + // compute PSNR relative to |source_frame| (for automatic verification). + // (3) write out the processed frame for viewing. + if (target_width != static_cast<int>(source_width) || + target_height != static_cast<int>(source_height)) { + int target_half_width = (target_width + 1) >> 1; + int target_half_height = (target_height + 1) >> 1; + int required_size_resampled = target_width * target_height + + 2 * (target_half_width * target_half_height); + ASSERT_EQ(required_size_resampled, static_cast<int>(out_frame->Length())); + + // Write the processed frame to file for visual inspection. + std::ostringstream filename; + filename << webrtc::test::OutputPath() << "Resampler_"<< mode << "_" << + "from_" << source_width << "x" << source_height << "_to_" << + target_width << "x" << target_height << "_30Hz_P420.yuv"; + std::cout << "Watch " << filename.str() << " and verify that it is okay." + << std::endl; + FILE* stand_alone_file = fopen(filename.str().c_str(), "wb"); + if (fwrite(out_frame->Buffer(), 1, + out_frame->Length(), stand_alone_file) != out_frame->Length()) { + fprintf(stderr, "Failed to write frame for scaling to width/height: " + " %d %d \n", target_width, target_height); + return; + } + fclose(stand_alone_file); + + VideoFrame resampled_source_frame; + resampled_source_frame.CopyFrame(*out_frame); + + // Scale |resampled_source_frame| back to original/source size. + ASSERT_EQ(VPM_OK, vpm->SetTargetResolution(source_width, + source_height, + 30)); + ASSERT_EQ(VPM_OK, vpm->PreprocessFrame(resampled_source_frame, + &out_frame)); + + // Write the processed frame to file for visual inspection. + std::ostringstream filename2; + filename2 << webrtc::test::OutputPath() << "Resampler_"<< mode << "_" << + "from_" << target_width << "x" << target_height << "_to_" << + source_width << "x" << source_height << "_30Hz_P420.yuv"; + std::cout << "Watch " << filename2.str() << " and verify that it is okay." + << std::endl; + stand_alone_file = fopen(filename2.str().c_str(), "wb"); + if (fwrite(out_frame->Buffer(), 1, + out_frame->Length(), stand_alone_file) != out_frame->Length()) { + fprintf(stderr, "Failed to write frame for scaling to width/height " + "%d %d \n", source_width, source_height); + return; + } + fclose(stand_alone_file); + + // Compute the PSNR and check expectation. + double psnr = I420PSNR(source_frame.Buffer(), out_frame->Buffer(), + source_width, source_height); + EXPECT_GT(psnr, expected_psnr); + printf("PSNR: %f. PSNR is between source of size %d %d, and a modified " + "source which is scaled down/up to: %d %d, and back to source size \n", + psnr, source_width, source_height, target_width, target_height); + + resampled_source_frame.Free(); + } +} + +} // namespace webrtc diff --git a/modules/video_processing/main/test/unit_test/unit_test.h b/modules/video_processing/main/test/unit_test/unit_test.h new file mode 100644 index 00000000..2363e1a1 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/unit_test.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef WEBRTC_MODULES_VIDEO_PROCESSING_MAIN_TEST_UNIT_TEST_VPM_UNIT_TEST_H +#define WEBRTC_MODULES_VIDEO_PROCESSING_MAIN_TEST_UNIT_TEST_VPM_UNIT_TEST_H + +#include "gtest/gtest.h" +#include "modules/video_processing/main/interface/video_processing.h" +#include "system_wrappers/interface/trace.h" +#include "testsupport/fileutils.h" + +namespace webrtc { + +class VideoProcessingModuleTest : public ::testing::Test +{ +protected: + VideoProcessingModuleTest(); + virtual void SetUp(); + virtual void TearDown(); + static void SetUpTestCase() + { + Trace::CreateTrace(); + std::string trace_file = webrtc::test::OutputPath() + "VPMTrace.txt"; + ASSERT_EQ(0, Trace::SetTraceFile(trace_file.c_str())); + } + static void TearDownTestCase() + { + Trace::ReturnTrace(); + } + VideoProcessingModule* _vpm; + FILE* _sourceFile; + VideoFrame _videoFrame; + const WebRtc_UWord32 _width; + const WebRtc_UWord32 _height; + const WebRtc_UWord32 _frameLength; +}; + +} // namespace webrtc + +#endif // WEBRTC_MODULES_VIDEO_PROCESSING_MAIN_TEST_UNIT_TEST_VPM_UNIT_TEST_H diff --git a/modules/video_processing/main/test/unit_test/writeYUV420file.m b/modules/video_processing/main/test/unit_test/writeYUV420file.m new file mode 100644 index 00000000..69a88083 --- /dev/null +++ b/modules/video_processing/main/test/unit_test/writeYUV420file.m @@ -0,0 +1,22 @@ +function writeYUV420file(filename, Y, U, V) +% writeYUV420file(filename, Y, U, V) + +fid = fopen(filename,'wb'); +if fid==-1 + error(['Cannot open file ' filename]); +end + +numFrames=size(Y,3); + +for k=1:numFrames + % Write luminance + fwrite(fid,uint8(Y(:,:,k).'), 'uchar'); + + % Write U channel + fwrite(fid,uint8(U(:,:,k).'), 'uchar'); + + % Write V channel + fwrite(fid,uint8(V(:,:,k).'), 'uchar'); +end + +fclose(fid); diff --git a/modules/video_processing/main/test/vpm_tests.gypi b/modules/video_processing/main/test/vpm_tests.gypi new file mode 100644 index 00000000..0888b1d1 --- /dev/null +++ b/modules/video_processing/main/test/vpm_tests.gypi @@ -0,0 +1,39 @@ +# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. +# +# Use of this source code is governed by a BSD-style license +# that can be found in the LICENSE file in the root of the source +# tree. An additional intellectual property rights grant can be found +# in the file PATENTS. All contributing project authors may +# be found in the AUTHORS file in the root of the source tree. + +{ + 'targets': [ + { + 'target_name': 'video_processing_unittests', + 'type': 'executable', + 'dependencies': [ + 'video_processing', + 'webrtc_utility', + '<(webrtc_root)/test/test.gyp:test_support_main', + '<(DEPTH)/testing/gtest.gyp:gtest', + ], + 'sources': [ + # headers + 'unit_test/unit_test.h', + # sources + 'unit_test/brightness_detection_test.cc', + 'unit_test/color_enhancement_test.cc', + 'unit_test/content_metrics_test.cc', + 'unit_test/deflickering_test.cc', + 'unit_test/denoising_test.cc', + 'unit_test/unit_test.cc', + ], # sources + }, + ], +} + +# Local Variables: +# tab-width:2 +# indent-tabs-mode:nil +# End: +# vim: set expandtab tabstop=2 shiftwidth=2: |