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1 /* | |
2 * libjingle | |
3 * Copyright 2011 Google Inc. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions are met: | |
7 * | |
8 * 1. Redistributions of source code must retain the above copyright notice, | |
9 * this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
11 * this list of conditions and the following disclaimer in the documentation | |
12 * and/or other materials provided with the distribution. | |
13 * 3. The name of the author may not be used to endorse or promote products | |
14 * derived from this software without specific prior written permission. | |
15 * | |
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | |
27 | |
28 #ifndef TALK_MEDIA_BASE_FAKEVIDEORENDERER_H_ | |
29 #define TALK_MEDIA_BASE_FAKEVIDEORENDERER_H_ | |
30 | |
31 #include "talk/media/base/videoframe.h" | |
32 #include "talk/media/base/videorenderer.h" | |
33 #include "webrtc/base/logging.h" | |
34 #include "webrtc/base/sigslot.h" | |
35 | |
36 namespace cricket { | |
37 | |
38 // Faked video renderer that has a callback for actions on rendering. | |
39 class FakeVideoRenderer : public VideoRenderer { | |
40 public: | |
41 FakeVideoRenderer() | |
42 : errors_(0), | |
43 width_(0), | |
44 height_(0), | |
45 num_rendered_frames_(0), | |
46 black_frame_(false) { | |
47 } | |
48 | |
49 virtual bool RenderFrame(const VideoFrame* frame) { | |
50 rtc::CritScope cs(&crit_); | |
51 // TODO(zhurunz) Check with VP8 team to see if we can remove this | |
52 // tolerance on Y values. | |
53 black_frame_ = CheckFrameColorYuv(6, 48, 128, 128, 128, 128, frame); | |
54 // Treat unexpected frame size as error. | |
55 if (!frame) { | |
56 LOG(LS_WARNING) << "RenderFrame expected non-null frame."; | |
57 ++errors_; | |
58 return false; | |
59 } | |
60 ++num_rendered_frames_; | |
61 width_ = static_cast<int>(frame->GetWidth()); | |
62 height_ = static_cast<int>(frame->GetHeight()); | |
63 SignalRenderFrame(frame); | |
64 return true; | |
65 } | |
66 | |
67 int errors() const { return errors_; } | |
68 int width() const { | |
69 rtc::CritScope cs(&crit_); | |
70 return width_; | |
71 } | |
72 int height() const { | |
73 rtc::CritScope cs(&crit_); | |
74 return height_; | |
75 } | |
76 int num_rendered_frames() const { | |
77 rtc::CritScope cs(&crit_); | |
78 return num_rendered_frames_; | |
79 } | |
80 bool black_frame() const { | |
81 rtc::CritScope cs(&crit_); | |
82 return black_frame_; | |
83 } | |
84 | |
85 sigslot::signal3<int, int, int> SignalSetSize; | |
86 sigslot::signal1<const VideoFrame*> SignalRenderFrame; | |
87 | |
88 private: | |
89 static bool CheckFrameColorYuv(uint8_t y_min, | |
90 uint8_t y_max, | |
91 uint8_t u_min, | |
92 uint8_t u_max, | |
93 uint8_t v_min, | |
94 uint8_t v_max, | |
95 const cricket::VideoFrame* frame) { | |
96 if (!frame) { | |
97 return false; | |
98 } | |
99 // Y | |
100 size_t y_width = frame->GetWidth(); | |
101 size_t y_height = frame->GetHeight(); | |
102 const uint8_t* y_plane = frame->GetYPlane(); | |
103 const uint8_t* y_pos = y_plane; | |
104 int32_t y_pitch = frame->GetYPitch(); | |
105 for (size_t i = 0; i < y_height; ++i) { | |
106 for (size_t j = 0; j < y_width; ++j) { | |
107 uint8_t y_value = *(y_pos + j); | |
108 if (y_value < y_min || y_value > y_max) { | |
109 return false; | |
110 } | |
111 } | |
112 y_pos += y_pitch; | |
113 } | |
114 // U and V | |
115 size_t chroma_width = frame->GetChromaWidth(); | |
116 size_t chroma_height = frame->GetChromaHeight(); | |
117 const uint8_t* u_plane = frame->GetUPlane(); | |
118 const uint8_t* v_plane = frame->GetVPlane(); | |
119 const uint8_t* u_pos = u_plane; | |
120 const uint8_t* v_pos = v_plane; | |
121 int32_t u_pitch = frame->GetUPitch(); | |
122 int32_t v_pitch = frame->GetVPitch(); | |
123 for (size_t i = 0; i < chroma_height; ++i) { | |
124 for (size_t j = 0; j < chroma_width; ++j) { | |
125 uint8_t u_value = *(u_pos + j); | |
126 if (u_value < u_min || u_value > u_max) { | |
127 return false; | |
128 } | |
129 uint8_t v_value = *(v_pos + j); | |
130 if (v_value < v_min || v_value > v_max) { | |
131 return false; | |
132 } | |
133 } | |
134 u_pos += u_pitch; | |
135 v_pos += v_pitch; | |
136 } | |
137 return true; | |
138 } | |
139 | |
140 int errors_; | |
141 int width_; | |
142 int height_; | |
143 int num_rendered_frames_; | |
144 bool black_frame_; | |
145 rtc::CriticalSection crit_; | |
146 }; | |
147 | |
148 } // namespace cricket | |
149 | |
150 #endif // TALK_MEDIA_BASE_FAKEVIDEORENDERER_H_ | |
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