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

Issue 2044703007: Delete unused YuvFrameGenerator class. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Created 4 years, 6 months ago
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1 /*
2 * Copyright (c) 2010 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 // Generates YUV420 frames with a "landscape with striped crosshair" in the
12 // Y-plane, plus a horizontal gradient in the U-plane and a vertical one in the
13 // V-plane. This makes for a nice mix of colours that is suited for both
14 // catching visual errors and making sure e.g. YUV->RGB/BGR conversion looks
15 // the same on different platforms.
16 // There is also a solid box bouncing around in the Y-plane, and two differently
17 // coloured lines bouncing horizontally and vertically in the U and V plane.
18 // This helps illustrating how the frame boundary goes, and can aid as a quite
19 // handy visual help for noticing e.g. packet loss if the frames are encoded
20 // and sent over the network.
21
22 #ifndef WEBRTC_MEDIA_BASE_YUVFRAMEGENERATOR_H_
23 #define WEBRTC_MEDIA_BASE_YUVFRAMEGENERATOR_H_
24
25 #include "webrtc/base/basictypes.h"
26 #include "webrtc/base/constructormagic.h"
27
28 namespace cricket {
29
30 class YuvFrameGenerator {
31 public:
32 // Constructs a frame-generator that produces frames of size |width|x|height|.
33 // If |enable_barcode| is specified, barcodes can be included in the frames
34 // when calling |GenerateNextFrame(uint8_t*, uint32_t)|. If |enable_barcode|
35 // is |true| then |width|x|height| should be at least 160x100; otherwise this
36 // constructor will abort.
37 YuvFrameGenerator(int width, int height, bool enable_barcode);
38 ~YuvFrameGenerator();
39
40 int GetFrameSize() { return frame_data_size_; }
41
42 // Generate the next frame and return it in the provided |frame_buffer|. If
43 // barcode_value is not |nullptr| the value referred by it will be encoded
44 // into a barcode in the frame. The value should in the range:
45 // [0..9,999,999]. If the value exceeds this range or barcodes were not
46 // requested in the constructor, this function will abort.
47 void GenerateNextFrame(uint8_t* frame_buffer, int32_t barcode_value);
48
49 int GetHeight() { return height_; }
50 int GetWidth() { return width_; }
51
52 // Fetch the bounds of the barcode from the generator. The barcode will
53 // always be at this location. This function will abort if barcodes were not
54 // requested in the constructor.
55 void GetBarcodeBounds(int* top, int* left, int* width, int* height);
56
57 private:
58 void DrawLandscape(uint8_t* p, int w, int h);
59 void DrawGradientX(uint8_t* p, int w, int h);
60 void DrawGradientY(uint8_t* p, int w, int h);
61 void DrawMovingLineX(uint8_t* p, int w, int h, int n);
62 void DrawMovingLineY(uint8_t* p, int w, int h, int n);
63 void DrawBouncingCube(uint8_t* p, int w, int h, int n);
64
65 void DrawBarcode(uint32_t value);
66 int DrawSideGuardBars(int x, int y, int height);
67 int DrawMiddleGuardBars(int x, int y, int height);
68 int DrawEanEncodedDigit(int digit, int x, int y, int height, bool r_code);
69 void DrawBlockRectangle(uint8_t* p,
70 int x_start,
71 int y_start,
72 int width,
73 int height,
74 int pitch,
75 uint8_t value);
76
77 private:
78 int width_;
79 int height_;
80 int frame_index_;
81 int frame_data_size_;
82 uint8_t* y_data_;
83 uint8_t* u_data_;
84 uint8_t* v_data_;
85
86 int barcode_start_x_;
87 int barcode_start_y_;
88
89 RTC_DISALLOW_COPY_AND_ASSIGN(YuvFrameGenerator);
90 };
91
92 } // namespace cricket
93
94 #endif // WEBRTC_MEDIA_BASE_YUVFRAMEGENERATOR_H_
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