Let WebSourceBufferImpl::setMode() update SourceState::sequence_mode_

media/filters/chunk_demuxer_unittest.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 <algorithm>
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
@@ skipping 2631 matching lines @@
   ASSERT_FALSE(demuxer_->SetTimestampOffset(
       kSourceId, base::TimeDelta::FromSeconds(25)));
 
   demuxer_->Abort(kSourceId);
   // After Abort(), setting a timestamp should succeed since we're no longer
   // in the middle of a cluster
   ASSERT_TRUE(demuxer_->SetTimestampOffset(
       kSourceId, base::TimeDelta::FromSeconds(25)));
 }
 
+TEST_F(ChunkDemuxerTest, SetSequenceModeMidParse) {

[acolwell GONE FROM CHROMIUM, 2014/01/11 01:24:36]

nit: s/MidParse/MidMediaSegment/ here and the test above.

[wolenetz, 2014/01/11 02:15:05]

Done.

+  ASSERT_TRUE(InitDemuxer(HAS_AUDIO | HAS_VIDEO));
+
+  scoped_ptr<Cluster> cluster = GenerateCluster(0, 2);
+  // Append only part of the cluster data.
+  AppendData(cluster->data(), cluster->size() - 13);
+
+  // Setting append mode should fail because we're in the middle of a cluster.
+  ASSERT_FALSE(demuxer_->SetSequenceMode(kSourceId, true));
+  ASSERT_FALSE(demuxer_->SetSequenceMode(kSourceId, false));
+
+  demuxer_->Abort(kSourceId);
+  // After Abort(), setting append mode should succeed since we're no longer
+  // in the middle of a cluster.
+  ASSERT_TRUE(demuxer_->SetSequenceMode(kSourceId, true));
+  ASSERT_TRUE(demuxer_->SetSequenceMode(kSourceId, false));
+}
+
 TEST_F(ChunkDemuxerTest, DurationChange) {
   ASSERT_TRUE(InitDemuxer(HAS_AUDIO | HAS_VIDEO));
   const int kStreamDuration = kDefaultDuration().InMilliseconds();
 
   // Add data leading up to the currently set duration.
   AppendCluster(GenerateCluster(kStreamDuration - kAudioBlockDuration,
                                 kStreamDuration - kVideoBlockDuration,
                                 2));
 
   CheckExpectedRanges(kSourceId, "{ [201191,201224) }");
@@ skipping 426 matching lines @@
   // NOTE: we start at 175 here because the buffer at 125 was returned
   // to the pending read initiated above.
   CheckExpectedBuffers(text_stream, "175 225");
 
   // Verify that audio & video streams contiue to return expected values.
   CheckExpectedBuffers(audio_stream, "160 180");
   CheckExpectedBuffers(video_stream, "180 210");
 }
 
 }  // namespace media