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      1 /*
      2  * libjingle
      3  * Copyright 2012 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 #include <string>
     29 
     30 #include "talk/app/webrtc/remotevideocapturer.h"
     31 #include "talk/app/webrtc/test/fakevideotrackrenderer.h"
     32 #include "talk/app/webrtc/videosource.h"
     33 #include "talk/app/webrtc/videotrack.h"
     34 #include "talk/media/base/fakemediaengine.h"
     35 #include "talk/media/webrtc/webrtcvideoframe.h"
     36 #include "talk/session/media/channelmanager.h"
     37 #include "webrtc/base/gunit.h"
     38 #include "webrtc/base/scoped_ptr.h"
     39 
     40 using webrtc::FakeVideoTrackRenderer;
     41 using webrtc::VideoSource;
     42 using webrtc::VideoTrack;
     43 using webrtc::VideoTrackInterface;
     44 
     45 namespace {
     46 
     47 class WebRtcVideoTestFrame : public cricket::WebRtcVideoFrame {
     48  public:
     49   using cricket::WebRtcVideoFrame::SetRotation;
     50 };
     51 
     52 }  // namespace
     53 
     54 class VideoTrackTest : public testing::Test {
     55  public:
     56   VideoTrackTest() {
     57     static const char kVideoTrackId[] = "track_id";
     58 
     59     channel_manager_.reset(new cricket::ChannelManager(
     60         new cricket::FakeMediaEngine(), rtc::Thread::Current()));
     61     EXPECT_TRUE(channel_manager_->Init());
     62     video_track_ = VideoTrack::Create(
     63         kVideoTrackId,
     64         VideoSource::Create(channel_manager_.get(),
     65                             new webrtc::RemoteVideoCapturer(), NULL, true));
     66   }
     67 
     68  protected:
     69   rtc::scoped_ptr<cricket::ChannelManager> channel_manager_;
     70   rtc::scoped_refptr<VideoTrackInterface> video_track_;
     71 };
     72 
     73 // Test adding renderers to a video track and render to them by providing
     74 // frames to the source.
     75 TEST_F(VideoTrackTest, RenderVideo) {
     76   // FakeVideoTrackRenderer register itself to |video_track_|
     77   rtc::scoped_ptr<FakeVideoTrackRenderer> renderer_1(
     78       new FakeVideoTrackRenderer(video_track_.get()));
     79 
     80   cricket::VideoRenderer* renderer_input =
     81       video_track_->GetSource()->FrameInput();
     82   ASSERT_FALSE(renderer_input == NULL);
     83 
     84   cricket::WebRtcVideoFrame frame;
     85   frame.InitToBlack(123, 123, 1, 1, 0);
     86   renderer_input->RenderFrame(&frame);
     87   EXPECT_EQ(1, renderer_1->num_rendered_frames());
     88 
     89   EXPECT_EQ(123, renderer_1->width());
     90   EXPECT_EQ(123, renderer_1->height());
     91 
     92   // FakeVideoTrackRenderer register itself to |video_track_|
     93   rtc::scoped_ptr<FakeVideoTrackRenderer> renderer_2(
     94       new FakeVideoTrackRenderer(video_track_.get()));
     95 
     96   renderer_input->RenderFrame(&frame);
     97 
     98   EXPECT_EQ(123, renderer_1->width());
     99   EXPECT_EQ(123, renderer_1->height());
    100   EXPECT_EQ(123, renderer_2->width());
    101   EXPECT_EQ(123, renderer_2->height());
    102 
    103   EXPECT_EQ(2, renderer_1->num_rendered_frames());
    104   EXPECT_EQ(1, renderer_2->num_rendered_frames());
    105 
    106   video_track_->RemoveRenderer(renderer_1.get());
    107   renderer_input->RenderFrame(&frame);
    108 
    109   EXPECT_EQ(2, renderer_1->num_rendered_frames());
    110   EXPECT_EQ(2, renderer_2->num_rendered_frames());
    111 }
    112