Cast: Fake software video encoder to respect target bitrate

media/cast/test/end2end_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // This test generate synthetic data. For audio it's a sinusoid waveform with
 // frequency kSoundFrequency and different amplitudes. For video it's a pattern
 // that is shifting by one pixel per frame, each pixels neighbors right and down
 // is this pixels value +1, since the pixel value is 8 bit it will wrap
 // frequently within the image. Visually this will create diagonally color bands
 // that moves across the screen
@@ skipping 1290 matching lines @@
   EXPECT_EQ(1000ul, video_ticks_.size());
 }
 
 TEST_F(End2EndTest, ReceiverClockFast) {
   Configure(transport::kFakeSoftwareVideo, transport::kPcm16, 32000, false, 1);
   Create();
   StartBasicPlayer();
   SetReceiverSkew(2.0, base::TimeDelta());
 
   int frames_counter = 0;
-  for (; frames_counter < 10000; ++frames_counter) {
+  for (; frames_counter < 1000; ++frames_counter) {

[hubbe, 2014/05/21 23:07:01]

Can we set these to a very low bitrate instead of reducing the number of frames?

     SendFakeVideoFrame(testing_clock_sender_->NowTicks());
     RunTasks(kFrameTimerMs);
   }
   RunTasks(2 * kFrameTimerMs + 1);  // Empty the pipeline.
-  EXPECT_EQ(10000ul, video_ticks_.size());
+  EXPECT_EQ(1000ul, video_ticks_.size());
 }
 
 TEST_F(End2EndTest, ReceiverClockSlow) {
   Configure(transport::kFakeSoftwareVideo, transport::kPcm16, 32000, false, 1);
   Create();
   StartBasicPlayer();
   SetReceiverSkew(0.5, base::TimeDelta());
 
   int frames_counter = 0;
-  for (; frames_counter < 10000; ++frames_counter) {
+  for (; frames_counter < 1000; ++frames_counter) {
     SendFakeVideoFrame(testing_clock_sender_->NowTicks());
     RunTasks(kFrameTimerMs);
   }
   RunTasks(2 * kFrameTimerMs + 1);  // Empty the pipeline.
-  EXPECT_EQ(10000ul, video_ticks_.size());
+  EXPECT_EQ(1000ul, video_ticks_.size());
 }
 
 TEST_F(End2EndTest, EvilNetwork) {
   Configure(transport::kFakeSoftwareVideo, transport::kPcm16, 32000, false, 1);
   receiver_to_sender_.SetPacketPipe(test::EvilNetwork().Pass());
   sender_to_receiver_.SetPacketPipe(test::EvilNetwork().Pass());
   Create();
   StartBasicPlayer();
 
   int frames_counter = 0;
-  for (; frames_counter < 10000; ++frames_counter) {
+  for (; frames_counter < 1000; ++frames_counter) {
     SendFakeVideoFrame(testing_clock_sender_->NowTicks());
     RunTasks(kFrameTimerMs);
   }
   base::TimeTicks test_end = testing_clock_receiver_->NowTicks();
   RunTasks(100 * kFrameTimerMs + 1);  // Empty the pipeline.
   EXPECT_GT(video_ticks_.size(), 100ul);
   EXPECT_LT((video_ticks_.back().second - test_end).InMilliseconds(), 1000);
 }
 
 // TODO(pwestin): Add repeatable packet loss test.
 // TODO(pwestin): Add test for misaligned send get calls.
 // TODO(pwestin): Add more tests that does not resample.
 // TODO(pwestin): Add test when we have starvation for our RunTask.
 
 }  // namespace cast
 }  // namespace media