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/*
* 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 WEBRTC_MODULES_VIDEO_PROCESSING_MAIN_SOURCE_FRAME_PREPROCESSOR_H
#define WEBRTC_MODULES_VIDEO_PROCESSING_MAIN_SOURCE_FRAME_PREPROCESSOR_H
#include "webrtc/modules/video_processing/main/interface/video_processing.h"
#include "webrtc/modules/video_processing/main/source/content_analysis.h"
#include "webrtc/modules/video_processing/main/source/spatial_resampler.h"
#include "webrtc/modules/video_processing/main/source/video_decimator.h"
#include "webrtc/typedefs.h"
namespace webrtc {
class VPMFramePreprocessor {
public:
VPMFramePreprocessor();
~VPMFramePreprocessor();
void Reset();
// Enable temporal decimation.
void EnableTemporalDecimation(bool enable);
void SetInputFrameResampleMode(VideoFrameResampling resampling_mode);
// Enable content analysis.
void EnableContentAnalysis(bool enable);
// Set target resolution: frame rate and dimension.
int32_t SetTargetResolution(uint32_t width, uint32_t height,
uint32_t frame_rate);
// Set target frame rate.
void SetTargetFramerate(int frame_rate);
// Update incoming frame rate/dimension.
void UpdateIncomingframe_rate();
int32_t updateIncomingFrameSize(uint32_t width, uint32_t height);
// Set decimated values: frame rate/dimension.
uint32_t Decimatedframe_rate();
uint32_t DecimatedWidth() const;
uint32_t DecimatedHeight() const;
// Preprocess output:
int32_t PreprocessFrame(const VideoFrame& frame,
VideoFrame** processed_frame);
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 };
VideoContentMetrics* content_metrics_;
VideoFrame resampled_frame_;
VPMSpatialResampler* spatial_resampler_;
VPMContentAnalysis* ca_;
VPMVideoDecimator* vd_;
bool enable_ca_;
int frame_cnt_;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_VIDEO_PROCESSING_MAIN_SOURCE_FRAME_PREPROCESSOR_H
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