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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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