Revert of Fix seeking when the start time is non-zero.

media/filters/ffmpeg_demuxer_unittest.cc

Index: media/filters/ffmpeg_demuxer_unittest.cc
diff --git a/media/filters/ffmpeg_demuxer_unittest.cc b/media/filters/ffmpeg_demuxer_unittest.cc
index b70138e942b4942ac04d575ce383b8360abdd1aa..a1614a421297fb83681baa506cbe683d8dd4de22 100644
--- a/media/filters/ffmpeg_demuxer_unittest.cc
+++ b/media/filters/ffmpeg_demuxer_unittest.cc
@@ -103,27 +103,13 @@
     InitializeDemuxerText(false);
   }
 
-  void InitializeDemuxerWithTimelineOffset(const char* utc_date) {
-    EXPECT_CALL(host_, SetDuration(_));
-    WaitableMessageLoopEvent event;
-    demuxer_->Initialize(&host_, event.GetPipelineStatusCB(), false);
-    // Inject the timeline offset into the FFmpeg metadata dictionary.
-    av_dict_set(&demuxer_->glue_->format_context()->metadata,
-                "creation_time",
-                utc_date,
-                0);
-    event.RunAndWaitForStatus(PIPELINE_OK);
-  }
-
   MOCK_METHOD2(OnReadDoneCalled, void(int, int64));
 
   // Verifies that |buffer| has a specific |size| and |timestamp|.
   // |location| simply indicates where the call to this function was made.
   // This makes it easier to track down where test failures occur.
   void OnReadDone(const tracked_objects::Location& location,
-                  int size,
-                  int64 timestamp_us,
-                  base::TimeDelta discard_front_padding,
+                  int size, int64 timestampInMicroseconds,
                   DemuxerStream::Status status,
                   const scoped_refptr<DecoderBuffer>& buffer) {
     std::string location_str;
@@ -131,39 +117,21 @@
     location_str += "\n";
     SCOPED_TRACE(location_str);
     EXPECT_EQ(status, DemuxerStream::kOk);
-    OnReadDoneCalled(size, timestamp_us);
+    OnReadDoneCalled(size, timestampInMicroseconds);
     EXPECT_TRUE(buffer.get() != NULL);
     EXPECT_EQ(size, buffer->data_size());
-    EXPECT_EQ(timestamp_us, buffer->timestamp().InMicroseconds());
-    EXPECT_EQ(discard_front_padding, buffer->discard_padding().first);
+    EXPECT_EQ(base::TimeDelta::FromMicroseconds(timestampInMicroseconds),
+              buffer->timestamp());
+
     DCHECK_EQ(&message_loop_, base::MessageLoop::current());
     message_loop_.PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
   }
 
   DemuxerStream::ReadCB NewReadCB(const tracked_objects::Location& location,
-                                  int size,
-                                  int64 timestamp_us) {
-    EXPECT_CALL(*this, OnReadDoneCalled(size, timestamp_us));
-    return base::Bind(&FFmpegDemuxerTest::OnReadDone,
-                      base::Unretained(this),
-                      location,
-                      size,
-                      timestamp_us,
-                      base::TimeDelta());
-  }
-
-  DemuxerStream::ReadCB NewReadCBWithCheckedDiscard(
-      const tracked_objects::Location& location,
-      int size,
-      int64 timestamp_us,
-      base::TimeDelta discard_front_padding) {
-    EXPECT_CALL(*this, OnReadDoneCalled(size, timestamp_us));
-    return base::Bind(&FFmpegDemuxerTest::OnReadDone,
-                      base::Unretained(this),
-                      location,
-                      size,
-                      timestamp_us,
-                      discard_front_padding);
+                                  int size, int64 timestampInMicroseconds) {
+    EXPECT_CALL(*this, OnReadDoneCalled(size, timestampInMicroseconds));
+    return base::Bind(&FFmpegDemuxerTest::OnReadDone, base::Unretained(this),
+                      location, size, timestampInMicroseconds);
   }
 
   // TODO(xhwang): This is a workaround of the issue that move-only parameters
@@ -418,103 +386,25 @@
   message_loop_.Run();
 }
 
-TEST_F(FFmpegDemuxerTest, Read_VideoPositiveStartTime) {
-  const char kTimelineOffset[] = "2012-11-10 12:34:56";
-  const int64 kTimelineOffsetMs = 1352550896000LL;
-
+TEST_F(FFmpegDemuxerTest, Read_VideoNonZeroStart) {
   // Test the start time is the first timestamp of the video and audio stream.
   CreateDemuxer("nonzero-start-time.webm");
-  InitializeDemuxerWithTimelineOffset(kTimelineOffset);
+  InitializeDemuxer();
 
   // Attempt a read from the video stream and run the message loop until done.
   DemuxerStream* video = demuxer_->GetStream(DemuxerStream::VIDEO);
   DemuxerStream* audio = demuxer_->GetStream(DemuxerStream::AUDIO);
 
-  const base::TimeDelta video_start_time =
-      base::TimeDelta::FromMicroseconds(400000);
-  const base::TimeDelta audio_start_time =
-      base::TimeDelta::FromMicroseconds(396000);
-
-  // Run the test twice with a seek in between.
-  for (int i = 0; i < 2; ++i) {
-    // Check first buffer in video stream.  It should have been adjusted such
-    // that
-    // it starts 400ms after the first audio buffer.
-    video->Read(
-        NewReadCB(FROM_HERE,
-                  5636,
-                  (video_start_time - audio_start_time).InMicroseconds()));
-    message_loop_.Run();
-
-    // Since the audio buffer has a lower first timestamp, it should become
-    // zero.
-    audio->Read(NewReadCB(FROM_HERE, 165, 0));
-    message_loop_.Run();
-
-    // Verify that the start time is equal to the lowest timestamp (ie the
-    // audio).
-    EXPECT_EQ(audio_start_time, demuxer_->start_time());
-
-    // Verify that the timeline offset has been adjusted by the start time.
-    EXPECT_EQ(kTimelineOffsetMs + audio_start_time.InMilliseconds(),
-              demuxer_->GetTimelineOffset().ToJavaTime());
-
-    // Seek back to the beginning and repeat the test.
-    WaitableMessageLoopEvent event;
-    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
-    event.RunAndWaitForStatus(PIPELINE_OK);
-  }
-}
-
-TEST_F(FFmpegDemuxerTest, Read_AudioNoStartTime) {
-  // FFmpeg does not set timestamps when demuxing wave files.  Ensure that the
-  // demuxer sets a start time of zero in this case.
-  CreateDemuxer("sfx_s24le.wav");
-  InitializeDemuxer();
-
-  // Run the test twice with a seek in between.
-  for (int i = 0; i < 2; ++i) {
-    demuxer_->GetStream(DemuxerStream::AUDIO)
-        ->Read(NewReadCB(FROM_HERE, 4095, 0));
-    message_loop_.Run();
-    EXPECT_EQ(base::TimeDelta(), demuxer_->start_time());
-
-    // Seek back to the beginning and repeat the test.
-    WaitableMessageLoopEvent event;
-    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
-    event.RunAndWaitForStatus(PIPELINE_OK);
-  }
-}
-
-TEST_F(FFmpegDemuxerTest, Read_AudioNegativeStartTimeAndOggDiscard) {
-  // Many ogg files have negative starting timestamps, so ensure demuxing and
-  // seeking work correctly with a negative start time.
-  CreateDemuxer("bear.ogv");
-  InitializeDemuxer();
-
-  // Run the test twice with a seek in between.
-  for (int i = 0; i < 2; ++i) {
-    demuxer_->GetStream(DemuxerStream::AUDIO)->Read(
-        NewReadCBWithCheckedDiscard(FROM_HERE, 40, 0, kInfiniteDuration()));
-    message_loop_.Run();
-    demuxer_->GetStream(DemuxerStream::AUDIO)->Read(
-        NewReadCBWithCheckedDiscard(FROM_HERE, 41, 2903, kInfiniteDuration()));
-    message_loop_.Run();
-    demuxer_->GetStream(DemuxerStream::AUDIO)->Read(NewReadCBWithCheckedDiscard(
-        FROM_HERE, 173, 5805, base::TimeDelta::FromMicroseconds(10159)));
-    message_loop_.Run();
-
-    demuxer_->GetStream(DemuxerStream::AUDIO)
-        ->Read(NewReadCB(FROM_HERE, 148, 18866));
-    message_loop_.Run();
-    EXPECT_EQ(base::TimeDelta::FromMicroseconds(-15964),
-              demuxer_->start_time());
-
-    // Seek back to the beginning and repeat the test.
-    WaitableMessageLoopEvent event;
-    demuxer_->Seek(base::TimeDelta(), event.GetPipelineStatusCB());
-    event.RunAndWaitForStatus(PIPELINE_OK);
-  }
+  // Check first buffer in video stream.
+  video->Read(NewReadCB(FROM_HERE, 5636, 400000));
+  message_loop_.Run();
+
+  // Check first buffer in audio stream.
+  audio->Read(NewReadCB(FROM_HERE, 165, 396000));
+  message_loop_.Run();
+
+  // Verify that the start time is equal to the lowest timestamp (ie the audio).
+  EXPECT_EQ(demuxer_->GetStartTime().InMicroseconds(), 396000);
 }
 
 TEST_F(FFmpegDemuxerTest, Read_EndOfStream) {