64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
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/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
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#define WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
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#include <memory>
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#include "webrtc/common_video/include/i420_buffer_pool.h"
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#include "webrtc/media/base/videoframe.h"
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namespace cricket {
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struct CapturedFrame;
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class VideoFrame;
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// Creates cricket::VideoFrames, or a subclass of cricket::VideoFrame
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// depending on the subclass of VideoFrameFactory.
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class VideoFrameFactory {
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public:
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VideoFrameFactory() : apply_rotation_(false) {}
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virtual ~VideoFrameFactory() {}
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// The returned frame aliases the aliased_frame if the input color
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// space allows for aliasing, otherwise a color conversion will
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// occur. Returns NULL if conversion fails.
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// The returned frame will be a center crop of |input_frame| with
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// size |cropped_width| x |cropped_height|.
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virtual VideoFrame* CreateAliasedFrame(const CapturedFrame* input_frame,
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int cropped_width,
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int cropped_height) const = 0;
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// The returned frame will be a center crop of |input_frame| with size
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// |cropped_width| x |cropped_height|, scaled to |output_width| x
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// |output_height|.
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virtual VideoFrame* CreateAliasedFrame(const CapturedFrame* input_frame,
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int cropped_input_width,
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int cropped_input_height,
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int output_width,
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int output_height) const;
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void SetApplyRotation(bool enable) { apply_rotation_ = enable; }
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protected:
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bool apply_rotation_;
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private:
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// An internal pool to avoid reallocations. It is mutable because it
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// does not affect behaviour, only performance.
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mutable webrtc::I420BufferPool pool_;
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};
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} // namespace cricket
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#endif // WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
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