79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
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/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* spatial_resampler.h
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*/
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#ifndef VPM_SPATIAL_RESAMPLER_H
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#define VPM_SPATIAL_RESAMPLER_H
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#include "typedefs.h"
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#include "module_common_types.h"
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#include "video_processing_defines.h"
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#include "vplib.h"
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#include "interpolator.h"
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namespace webrtc {
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class VPMSpatialResampler
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{
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public:
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virtual ~VPMSpatialResampler() {};
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virtual WebRtc_Word32 SetTargetFrameSize(WebRtc_UWord32 width,
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WebRtc_UWord32 height) = 0;
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virtual void SetInputFrameResampleMode(VideoFrameResampling
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resamplingMode) = 0;
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virtual void Reset() = 0;
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virtual WebRtc_Word32 ResampleFrame(const VideoFrame& inFrame,
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VideoFrame& outFrame) = 0;
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virtual WebRtc_UWord32 TargetWidth() = 0;
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virtual WebRtc_UWord32 TargetHeight() = 0;
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virtual WebRtc_Word32 Release() = 0;
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};
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class VPMSimpleSpatialResampler : public VPMSpatialResampler
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{
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public:
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VPMSimpleSpatialResampler();
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~VPMSimpleSpatialResampler();
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virtual WebRtc_Word32 SetTargetFrameSize(WebRtc_UWord32 width,
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WebRtc_UWord32 height);
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virtual void SetInputFrameResampleMode(VideoFrameResampling resamplingMode);
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virtual void Reset();
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virtual WebRtc_Word32 ResampleFrame(const VideoFrame& inFrame,
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VideoFrame& outFrame);
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virtual WebRtc_UWord32 TargetWidth();
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virtual WebRtc_UWord32 TargetHeight();
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virtual WebRtc_Word32 Release();
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private:
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WebRtc_Word32 UpsampleFrame(const VideoFrame& inFrame, VideoFrame& outFrame);
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WebRtc_Word32 CropSize(WebRtc_UWord32 width, WebRtc_UWord32 height,
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WebRtc_UWord32& croppedWidth,
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WebRtc_UWord32& croppedHeight) const;
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WebRtc_Word32 SubsampleMultipleOf2(VideoFrame& frame);
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bool ExactMultiplier(WebRtc_UWord32 width, WebRtc_UWord32 height) const;
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WebRtc_Word32 BiLinearInterpolation(const VideoFrame& inFrame,
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VideoFrame& outFrame);
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VideoFrameResampling _resamplingMode;
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WebRtc_UWord32 _targetWidth;
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WebRtc_UWord32 _targetHeight;
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interpolator* _interpolatorPtr;
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};
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} //namespace
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#endif
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