Initialize media timeline correctly for positive start times.

media/filters/pipeline_integration_test.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/filters/pipeline_integration_test_base.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
@@ skipping 1545 matching lines @@
                 ->audio_decoder_config()
                 .samples_per_second());
 }
 
 // Ensures audio-only playback with missing or negative timestamps works.  Tests
 // the common live-streaming case for chained ogg.  See http://crbug.com/396864.
 TEST_F(PipelineIntegrationTest, BasicPlaybackChainedOgg) {
   ASSERT_TRUE(Start(GetTestDataFilePath("double-sfx.ogg"), PIPELINE_OK));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
+  ASSERT_EQ(base::TimeDelta(), demuxer_->GetStartTime());
 }
 
 // Ensures audio-video playback with missing or negative timestamps fails softly
 // instead of crashing.  See http://crbug.com/396864.
 TEST_F(PipelineIntegrationTest, BasicPlaybackChainedOggVideo) {
   ASSERT_TRUE(Start(GetTestDataFilePath("double-bear.ogv"), PIPELINE_OK));
   Play();
   EXPECT_EQ(PIPELINE_ERROR_DECODE, WaitUntilEndedOrError());
+  ASSERT_EQ(base::TimeDelta(), demuxer_->GetStartTime());
 }
 
 // Tests that we signal ended even when audio runs longer than video track.
 TEST_F(PipelineIntegrationTest, BasicPlaybackAudioLongerThanVideo) {
   ASSERT_TRUE(Start(GetTestDataFilePath("bear_audio_longer_than_video.ogv"),
                     PIPELINE_OK));
   // Audio track is 2000ms. Video track is 1001ms. Duration should be higher
   // of the two.
   EXPECT_EQ(2000, pipeline_->GetMediaDuration().InMilliseconds());
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
 }
 
 // Tests that we signal ended even when audio runs shorter than video track.
 TEST_F(PipelineIntegrationTest, BasicPlaybackAudioShorterThanVideo) {
   ASSERT_TRUE(Start(GetTestDataFilePath("bear_audio_shorter_than_video.ogv"),
                     PIPELINE_OK));
   // Audio track is 500ms. Video track is 1001ms. Duration should be higher of
   // the two.
   EXPECT_EQ(1001, pipeline_->GetMediaDuration().InMilliseconds());
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
 }
 
+TEST_F(PipelineIntegrationTest, BasicPlaybackPositiveStartTime) {
+  ASSERT_TRUE(
+      Start(GetTestDataFilePath("nonzero-start-time.webm"), PIPELINE_OK));
+  Play();
+  ASSERT_TRUE(WaitUntilOnEnded());
+  ASSERT_EQ(base::TimeDelta::FromMicroseconds(396000),
+            demuxer_->GetStartTime());
+}
+
 }  // namespace media