Implement disabling and enabling media tracks

media/test/pipeline_integration_test_base.cc

 // Copyright (c) 2012 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.
 
 #include "media/test/pipeline_integration_test_base.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 31 matching lines @@
 const char kNullAudioHash[] = "0.00,0.00,0.00,0.00,0.00,0.00,";
 
 PipelineIntegrationTestBase::PipelineIntegrationTestBase()
     : hashing_enabled_(false),
       clockless_playback_(false),
       pipeline_(new PipelineImpl(message_loop_.task_runner(), new MediaLog())),
       ended_(false),
       pipeline_status_(PIPELINE_OK),
       last_video_frame_format_(PIXEL_FORMAT_UNKNOWN),
       last_video_frame_color_space_(COLOR_SPACE_UNSPECIFIED) {
-  base::MD5Init(&md5_context_);
+  ResetVideoHash();
 }
 
 PipelineIntegrationTestBase::~PipelineIntegrationTestBase() {
   if (pipeline_->IsRunning())
     Stop();
 
   pipeline_.reset();
   message_loop_.RunUntilIdle();
 }
 
@@ skipping 297 matching lines @@
 
 void PipelineIntegrationTestBase::OnVideoFramePaint(
     const scoped_refptr<VideoFrame>& frame) {
   last_video_frame_format_ = frame->format();
   int result;
   if (frame->metadata()->GetInteger(VideoFrameMetadata::COLOR_SPACE, &result))
     last_video_frame_color_space_ = static_cast<ColorSpace>(result);
   if (!hashing_enabled_ || last_frame_ == frame)
     return;
   last_frame_ = frame;
+  DVLOG(3) << __FUNCTION__ << " pts=" << frame->timestamp().InSecondsF();
   VideoFrame::HashFrameForTesting(&md5_context_, frame);
 }
 
+void PipelineIntegrationTestBase::ResetVideoHash() {
+  base::MD5Init(&md5_context_);
+}
+
 std::string PipelineIntegrationTestBase::GetVideoHash() {
   DCHECK(hashing_enabled_);
   base::MD5Digest digest;
   base::MD5Final(&digest, &md5_context_);
   return base::MD5DigestToBase16(digest);
 }
 
 std::string PipelineIntegrationTestBase::GetAudioHash() {
   DCHECK(hashing_enabled_);
 
   if (clockless_playback_)
     return clockless_audio_sink_->GetAudioHashForTesting();
   return audio_sink_->GetAudioHashForTesting();
 }
 
 base::TimeDelta PipelineIntegrationTestBase::GetAudioTime() {
   DCHECK(clockless_playback_);
   return clockless_audio_sink_->render_time();
 }
 
 base::TimeTicks DummyTickClock::NowTicks() {
   now_ += base::TimeDelta::FromSeconds(60);
   return now_;
 }
 
 }  // namespace media