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Side by Side Diff: webrtc/media/base/videoframefactory.h

Issue 2357113002: Revert of Delete VideoFrameFactory, CapturedFrame, and related code. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Created 4 years, 3 months ago
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1 /*
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #ifndef WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
12 #define WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
13
14 #include <memory>
15
16 #include "webrtc/common_video/include/i420_buffer_pool.h"
17 #include "webrtc/media/base/videoframe.h"
18
19 namespace cricket {
20
21 struct CapturedFrame;
22 class VideoFrame;
23
24 // Creates cricket::VideoFrames, or a subclass of cricket::VideoFrame
25 // depending on the subclass of VideoFrameFactory.
26 class VideoFrameFactory {
27 public:
28 VideoFrameFactory() : apply_rotation_(false) {}
29 virtual ~VideoFrameFactory() {}
30
31 // The returned frame aliases the aliased_frame if the input color
32 // space allows for aliasing, otherwise a color conversion will
33 // occur. Returns NULL if conversion fails.
34
35 // The returned frame will be a center crop of |input_frame| with
36 // size |cropped_width| x |cropped_height|.
37 virtual VideoFrame* CreateAliasedFrame(const CapturedFrame* input_frame,
38 int cropped_width,
39 int cropped_height) const = 0;
40
41 // The returned frame will be a center crop of |input_frame| with size
42 // |cropped_width| x |cropped_height|, scaled to |output_width| x
43 // |output_height|.
44 virtual VideoFrame* CreateAliasedFrame(const CapturedFrame* input_frame,
45 int cropped_input_width,
46 int cropped_input_height,
47 int output_width,
48 int output_height) const;
49
50 void SetApplyRotation(bool enable) { apply_rotation_ = enable; }
51
52 protected:
53 bool apply_rotation_;
54
55 private:
56 // An internal pool to avoid reallocations. It is mutable because it
57 // does not affect behaviour, only performance.
58 mutable webrtc::I420BufferPool pool_;
59 };
60
61 } // namespace cricket
62
63 #endif // WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
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