145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
/*
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* Copyright (c) 2011 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_FAKEVIDEORENDERER_H_
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#define WEBRTC_MEDIA_BASE_FAKEVIDEORENDERER_H_
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#include "webrtc/base/logging.h"
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#include "webrtc/base/sigslot.h"
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#include "webrtc/media/base/videoframe.h"
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#include "webrtc/media/base/videosinkinterface.h"
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namespace cricket {
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// Faked video renderer that has a callback for actions on rendering.
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class FakeVideoRenderer : public rtc::VideoSinkInterface<cricket::VideoFrame> {
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public:
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FakeVideoRenderer()
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: errors_(0),
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width_(0),
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height_(0),
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rotation_(webrtc::kVideoRotation_0),
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timestamp_(0),
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num_rendered_frames_(0),
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black_frame_(false) {}
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virtual void OnFrame(const VideoFrame& frame) {
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rtc::CritScope cs(&crit_);
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// TODO(zhurunz) Check with VP8 team to see if we can remove this
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// tolerance on Y values. Some unit tests produce Y values close
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// to 16 rather than close to zero, for supposedly black frames.
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// Largest value observed is 34, e.g., running
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// P2PTestConductor.LocalP2PTest16To9 (peerconnection_unittests).
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black_frame_ = CheckFrameColorYuv(0, 48, 128, 128, 128, 128, &frame);
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// Treat unexpected frame size as error.
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++num_rendered_frames_;
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width_ = frame.width();
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height_ = frame.height();
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rotation_ = frame.rotation();
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timestamp_ = frame.GetTimeStamp();
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SignalRenderFrame(&frame);
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}
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int errors() const { return errors_; }
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int width() const {
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rtc::CritScope cs(&crit_);
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return width_;
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}
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int height() const {
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rtc::CritScope cs(&crit_);
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return height_;
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}
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webrtc::VideoRotation rotation() const {
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rtc::CritScope cs(&crit_);
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return rotation_;
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}
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int64_t timestamp() const {
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rtc::CritScope cs(&crit_);
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return timestamp_;
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}
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int num_rendered_frames() const {
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rtc::CritScope cs(&crit_);
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return num_rendered_frames_;
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}
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bool black_frame() const {
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rtc::CritScope cs(&crit_);
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return black_frame_;
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}
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sigslot::signal3<int, int, int> SignalSetSize;
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sigslot::signal1<const VideoFrame*> SignalRenderFrame;
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private:
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static bool CheckFrameColorYuv(uint8_t y_min,
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uint8_t y_max,
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uint8_t u_min,
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uint8_t u_max,
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uint8_t v_min,
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uint8_t v_max,
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const cricket::VideoFrame* frame) {
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if (!frame || !frame->video_frame_buffer()) {
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return false;
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}
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// Y
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int y_width = frame->width();
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int y_height = frame->height();
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const uint8_t* y_plane = frame->video_frame_buffer()->DataY();
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const uint8_t* y_pos = y_plane;
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int32_t y_pitch = frame->video_frame_buffer()->StrideY();
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for (int i = 0; i < y_height; ++i) {
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for (int j = 0; j < y_width; ++j) {
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uint8_t y_value = *(y_pos + j);
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if (y_value < y_min || y_value > y_max) {
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return false;
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}
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}
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y_pos += y_pitch;
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}
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// U and V
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int chroma_width = (frame->width() + 1)/2;
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int chroma_height = (frame->height() + 1)/2;
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const uint8_t* u_plane = frame->video_frame_buffer()->DataU();
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const uint8_t* v_plane = frame->video_frame_buffer()->DataV();
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const uint8_t* u_pos = u_plane;
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const uint8_t* v_pos = v_plane;
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int32_t u_pitch = frame->video_frame_buffer()->StrideU();
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int32_t v_pitch = frame->video_frame_buffer()->StrideV();
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for (int i = 0; i < chroma_height; ++i) {
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for (int j = 0; j < chroma_width; ++j) {
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uint8_t u_value = *(u_pos + j);
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if (u_value < u_min || u_value > u_max) {
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return false;
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}
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uint8_t v_value = *(v_pos + j);
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if (v_value < v_min || v_value > v_max) {
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return false;
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}
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}
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u_pos += u_pitch;
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v_pos += v_pitch;
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}
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return true;
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}
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int errors_;
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int width_;
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int height_;
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webrtc::VideoRotation rotation_;
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int64_t timestamp_;
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int num_rendered_frames_;
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bool black_frame_;
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rtc::CriticalSection crit_;
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};
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} // namespace cricket
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#endif // WEBRTC_MEDIA_BASE_FAKEVIDEORENDERER_H_
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