Propage CueEvent to MpdNotifier/HlsNotifier

Change-Id: I9828af11a28300d20cc8742251bbe1b4ebfdbad1

packager/hls/base/hls_notifier.h

@@ -57,6 +57,11 @@ class HlsNotifier {
                                 uint64_t start_byte_offset,
                                 uint64_t size) = 0;
 
+  /// @param stream_id is the value set by NotifyNewStream().
+  /// @param timestamp is the timestamp of the CueEvent.
+  /// @return true on success, false otherwise.
+  virtual bool NotifyCueEvent(uint32_t stream_id, uint64_t timestamp) = 0;
+
   /// @param stream_id is the value set by NotifyNewStream().
   /// @param key_id is the key ID for the stream.
   /// @param system_id is the DRM system ID in e.g. PSSH boxes. For example this

packager/hls/base/simple_hls_notifier.cc

@@ -367,6 +367,12 @@ bool SimpleHlsNotifier::NotifyNewSegment(uint32_t stream_id,
   return true;
 }
 
+bool SimpleHlsNotifier::NotifyCueEvent(uint32_t container_id,
+                                       uint64_t timestamp) {
+  NOTIMPLEMENTED();
+  return false;
+}
+
 bool SimpleHlsNotifier::NotifyEncryptionUpdate(
     uint32_t stream_id,
     const std::vector<uint8_t>& key_id,

packager/hls/base/simple_hls_notifier.h

@@ -73,6 +73,7 @@ class SimpleHlsNotifier : public HlsNotifier {
                         uint64_t duration,
                         uint64_t start_byte_offset,
                         uint64_t size) override;
+  bool NotifyCueEvent(uint32_t container_id, uint64_t timestamp) override;
   bool NotifyEncryptionUpdate(
       uint32_t stream_id,
       const std::vector<uint8_t>& key_id,

packager/media/base/media_handler_test_base.cc

@@ -60,6 +60,30 @@ const uint8_t kData[]{
 namespace shaka {
 namespace media {
 
+std::string StreamDataTypeToString(StreamDataType stream_data_type) {
+  switch (stream_data_type) {
+    case StreamDataType::kStreamInfo:
+      return "stream info";
+    case StreamDataType::kMediaSample:
+      return "media sample";
+    case StreamDataType::kTextSample:
+      return "text sample";
+    case StreamDataType::kSegmentInfo:
+      return "segment info";
+    case StreamDataType::kScte35Event:
+      return "scte35 event";
+    case StreamDataType::kCueEvent:
+      return "cue event";
+    case StreamDataType::kUnknown:
+      return "unknown";
+  }
+  return "unknown";
+}
+
+std::string BoolToString(bool value) {
+  return value ? "true" : "false";
+}
+
 bool FakeInputMediaHandler::ValidateOutputStreamIndex(size_t index) const {
   return true;
 }
@@ -170,6 +194,7 @@ std::shared_ptr<MediaSample> MediaHandlerTestBase::GetMediaSample(
   std::shared_ptr<MediaSample> sample =
       MediaSample::CopyFrom(data, data_length, nullptr, 0, is_keyframe);
   sample->set_dts(timestamp);
+  sample->set_pts(timestamp);
   sample->set_duration(duration);
 
   return sample;

packager/media/base/media_handler_test_base.h

@@ -4,6 +4,9 @@
 // license that can be found in the LICENSE file or at
 // https://developers.google.com/open-source/licenses/bsd
 
+#ifndef PACKAGER_MEDIA_BASE_MEDIA_HANDLER_TEST_BASE_H_
+#define PACKAGER_MEDIA_BASE_MEDIA_HANDLER_TEST_BASE_H_
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
@@ -13,16 +16,25 @@
 namespace shaka {
 namespace media {
 
+std::string StreamDataTypeToString(StreamDataType stream_data_type);
+std::string BoolToString(bool value);
+
 MATCHER_P(IsStreamInfo, stream_index, "") {
   return arg->stream_index == stream_index &&
          arg->stream_data_type == StreamDataType::kStreamInfo;
 }
 
 MATCHER_P3(IsStreamInfo, stream_index, time_scale, encrypted, "") {
-  *result_listener << "which is (" << stream_index << "," << time_scale << ","
+  if (arg->stream_data_type != StreamDataType::kStreamInfo) {
-                   << (encrypted ? "encrypted" : "not encrypted") << ")";
+    *result_listener << "which is "
+                     << StreamDataTypeToString(arg->stream_data_type);
+    return false;
+  }
+
+  *result_listener << "which is (" << arg->stream_index << ","
+                   << arg->stream_info->time_scale() << ","
+                   << BoolToString(arg->stream_info->is_encrypted()) << ")";
   return arg->stream_index == stream_index &&
-         arg->stream_data_type == StreamDataType::kStreamInfo &&
          arg->stream_info->time_scale() == time_scale &&
          arg->stream_info->is_encrypted() == encrypted;
 }
@@ -34,12 +46,18 @@ MATCHER_P5(IsSegmentInfo,
            subsegment,
            encrypted,
            "") {
-  *result_listener << "which is (" << stream_index << "," << start_timestamp
+  if (arg->stream_data_type != StreamDataType::kSegmentInfo) {
-                   << "," << duration << ","
+    *result_listener << "which is "
-                   << (subsegment ? "subsegment" : "not subsegment") << ","
+                     << StreamDataTypeToString(arg->stream_data_type);
-                   << (encrypted ? "encrypted" : "not encrypted") << ")";
+    return false;
+  }
+
+  *result_listener << "which is (" << arg->stream_index << ","
+                   << arg->segment_info->start_timestamp << ","
+                   << arg->segment_info->duration << ","
+                   << BoolToString(arg->segment_info->is_subsegment) << ","
+                   << BoolToString(arg->segment_info->is_encrypted) << ")";
   return arg->stream_index == stream_index &&
-         arg->stream_data_type == StreamDataType::kSegmentInfo &&
          arg->segment_info->start_timestamp == start_timestamp &&
          arg->segment_info->duration == duration &&
          arg->segment_info->is_subsegment == subsegment &&
@@ -54,12 +72,14 @@ MATCHER_P6(MatchEncryptionConfig,
            constant_iv,
            key_id,
            "") {
-  *result_listener << "which is (" << FourCCToString(protection_scheme) << ","
+  *result_listener << "which is (" << FourCCToString(arg.protection_scheme)
-                   << static_cast<int>(crypt_byte_block) << ","
+                   << "," << static_cast<int>(arg.crypt_byte_block) << ","
-                   << static_cast<int>(skip_byte_block) << ","
+                   << static_cast<int>(arg.skip_byte_block) << ","
-                   << static_cast<int>(per_sample_iv_size) << ","
+                   << static_cast<int>(arg.per_sample_iv_size) << ","
-                   << base::HexEncode(constant_iv.data(), constant_iv.size())
+                   << base::HexEncode(arg.constant_iv.data(),
-                   << "," << base::HexEncode(key_id.data(), key_id.size())
+                                      arg.constant_iv.size())
+                   << ","
+                   << base::HexEncode(arg.key_id.data(), arg.key_id.size())
                    << ")";
   return arg.protection_scheme == protection_scheme &&
          arg.crypt_byte_block == crypt_byte_block &&
@@ -69,25 +89,51 @@ MATCHER_P6(MatchEncryptionConfig,
 }
 
 MATCHER_P4(IsMediaSample, stream_index, timestamp, duration, encrypted, "") {
-  *result_listener << "which is (" << stream_index << "," << timestamp << ","
+  if (arg->stream_data_type != StreamDataType::kMediaSample) {
-                   << duration << ","
+    *result_listener << "which is "
-                   << (encrypted ? "encrypted" : "not encrypted") << ")";
+                     << StreamDataTypeToString(arg->stream_data_type);
+    return false;
+  }
+  *result_listener << "which is (" << stream_index << ","
+                   << arg->media_sample->dts() << ","
+                   << arg->media_sample->duration() << ","
+                   << BoolToString(arg->media_sample->is_encrypted()) << ")";
   return arg->stream_index == stream_index &&
-         arg->stream_data_type == StreamDataType::kMediaSample &&
          arg->media_sample->dts() == timestamp &&
          arg->media_sample->duration() == duration &&
          arg->media_sample->is_encrypted() == encrypted;
 }
 
 MATCHER_P5(IsTextSample, id, start_time, end_time, settings, payload, "") {
-  return arg->stream_data_type == StreamDataType::kTextSample &&
+  if (arg->stream_data_type != StreamDataType::kTextSample) {
-         arg->text_sample->id() == id &&
+    *result_listener << "which is "
+                     << StreamDataTypeToString(arg->stream_data_type);
+    return false;
+  }
+  *result_listener << "which is (" << arg->text_sample->id() << ","
+                   << arg->text_sample->start_time() << ","
+                   << arg->text_sample->EndTime() << ","
+                   << arg->text_sample->settings() << ","
+                   << arg->text_sample->payload() << ")";
+  return arg->text_sample->id() == id &&
          arg->text_sample->start_time() == start_time &&
          arg->text_sample->EndTime() == end_time &&
          arg->text_sample->settings() == settings &&
          arg->text_sample->payload() == payload;
 }
 
+MATCHER_P2(IsCueEvent, stream_index, timestamp, "") {
+  if (arg->stream_data_type != StreamDataType::kCueEvent) {
+    *result_listener << "which is "
+                     << StreamDataTypeToString(arg->stream_data_type);
+    return false;
+  }
+  *result_listener << "which is (" << arg->stream_index << ","
+                   << arg->cue_event->timestamp << ")";
+  return arg->stream_index == stream_index &&
+         arg->cue_event->timestamp == timestamp;
+}
+
 class FakeInputMediaHandler : public MediaHandler {
  public:
   using MediaHandler::Dispatch;
@@ -234,3 +280,5 @@ class MediaHandlerGraphTestBase : public MediaHandlerTestBase {
 
 }  // namespace media
 }  // namespace shaka
+
+#endif  // PACKAGER_MEDIA_BASE_MEDIA_HANDLER_TEST_BASE_H_

packager/media/base/muxer.cc

@@ -72,6 +72,12 @@ Status Muxer::Process(std::unique_ptr<StreamData> stream_data) {
     case StreamDataType::kMediaSample:
       return AddSample(stream_data->stream_index,
                        *stream_data->media_sample);
+    case StreamDataType::kCueEvent:
+      if (muxer_listener_) {
+        muxer_listener_->OnCueEvent(stream_data->cue_event->timestamp,
+                                    stream_data->cue_event->cue_data);
+      }
+      break;
     default:
       VLOG(3) << "Stream data type "
               << static_cast<int>(stream_data->stream_data_type) << " ignored.";

packager/media/chunking/chunking_handler.cc

@@ -149,6 +149,7 @@ Status ChunkingHandler::ProcessMediaSample(const MediaSample* sample) {
   // Check if we need to terminate the current (sub)segment.
   bool new_segment = false;
   bool new_subsegment = false;
+  std::shared_ptr<CueEvent> cue_event;
   if (is_key_frame || !chunking_params_.segment_sap_aligned) {
     const int64_t segment_index = timestamp / segment_duration_;
     if (segment_index != current_segment_index_) {
@@ -161,11 +162,16 @@ Status ChunkingHandler::ProcessMediaSample(const MediaSample* sample) {
     // events that may be very close to each other.
     while (!scte35_events_.empty() &&
            (scte35_events_.top()->scte35_event->start_time <= timestamp)) {
-      if (!new_segment) {
+      // For simplicity, don't change |current_segment_index_|.
-        // Reset subsegment index but don't change current_segment_index_.
+      current_subsegment_index_ = 0;
-        current_subsegment_index_ = 0;
+      new_segment = true;
-        new_segment = true;
+
-      }
+      cue_event = std::make_shared<CueEvent>();
+      // Use PTS instead of DTS for cue event timestamp.
+      cue_event->timestamp = sample->pts();
+      cue_event->cue_data = scte35_events_.top()->scte35_event->cue_data;
+      VLOG(1) << "Chunked at " << timestamp << " for Ad Cue.";
+
       scte35_events_.pop();
     }
   }
@@ -190,6 +196,9 @@ Status ChunkingHandler::ProcessMediaSample(const MediaSample* sample) {
   if (new_segment) {
     status.Update(DispatchSegmentInfoForAllStreams());
     segment_info_[main_stream_index_]->start_timestamp = timestamp;
+
+    if (cue_event)
+      status.Update(DispatchCueEventForAllStreams(std::move(cue_event)));
   }
   if (subsegment_duration_ > 0 && (new_segment || new_subsegment)) {
     status.Update(DispatchSubsegmentInfoForAllStreams());
@@ -273,5 +282,17 @@ Status ChunkingHandler::DispatchSubsegmentInfoForAllStreams() {
   return status;
 }
 
+Status ChunkingHandler::DispatchCueEventForAllStreams(
+    std::shared_ptr<CueEvent> cue_event) {
+  Status status;
+  for (size_t i = 0; i < segment_info_.size() && status.ok(); ++i) {
+    std::shared_ptr<CueEvent> new_cue_event(new CueEvent(*cue_event));
+    new_cue_event->timestamp = cue_event->timestamp * time_scales_[i] /
+                               time_scales_[main_stream_index_];
+    status.Update(DispatchCueEvent(i, std::move(new_cue_event)));
+  }
+  return status;
+}
+
 }  // namespace media
 }  // namespace shaka

packager/media/chunking/chunking_handler.h

@@ -71,6 +71,7 @@ class ChunkingHandler : public MediaHandler {
   // The (sub)segments are aligned and dispatched together.
   Status DispatchSegmentInfoForAllStreams();
   Status DispatchSubsegmentInfoForAllStreams();
+  Status DispatchCueEventForAllStreams(std::shared_ptr<CueEvent> cue_event);
 
   const ChunkingParams chunking_params_;
 

packager/media/chunking/chunking_handler_unittest.cc

@@ -286,5 +286,43 @@ TEST_F(ChunkingHandlerTest, AudioAndVideo) {
   EXPECT_THAT(GetOutputStreamDataVector(), IsEmpty());
 }
 
+TEST_F(ChunkingHandlerTest, Scte35Event) {
+  ChunkingParams chunking_params;
+  chunking_params.segment_duration_in_seconds = 1;
+  chunking_params.subsegment_duration_in_seconds = 0.5;
+  SetUpChunkingHandler(1, chunking_params);
+
+  ASSERT_OK(Process(StreamData::FromStreamInfo(
+      kStreamIndex0, GetVideoStreamInfo(kTimeScale1))));
+
+  const int64_t kVideoStartTimestamp = 12345;
+
+  auto scte35_event = std::make_shared<Scte35Event>();
+  scte35_event->start_time = kVideoStartTimestamp + kDuration1;
+  ASSERT_OK(Process(StreamData::FromScte35Event(kStreamIndex0, scte35_event)));
+
+  for (int i = 0; i < 3; ++i) {
+    const bool is_key_frame = true;
+    ASSERT_OK(Process(StreamData::FromMediaSample(
+        kStreamIndex0, GetMediaSample(kVideoStartTimestamp + i * kDuration1,
+                                      kDuration1, is_key_frame))));
+  }
+  EXPECT_THAT(
+      GetOutputStreamDataVector(),
+      ElementsAre(
+          IsStreamInfo(kStreamIndex0, kTimeScale1, !kEncrypted),
+          IsMediaSample(kStreamIndex0, kVideoStartTimestamp, kDuration1,
+                        !kEncrypted),
+          // A new segment is created due to the existance of Cue.
+          IsSegmentInfo(kStreamIndex0, kVideoStartTimestamp, kDuration1,
+                        !kIsSubsegment, !kEncrypted),
+          IsCueEvent(kStreamIndex0,
+                     static_cast<double>(kVideoStartTimestamp + kDuration1)),
+          IsMediaSample(kStreamIndex0, kVideoStartTimestamp + kDuration1 * 1,
+                        kDuration1, !kEncrypted),
+          IsMediaSample(kStreamIndex0, kVideoStartTimestamp + kDuration1 * 2,
+                        kDuration1, !kEncrypted)));
+}
+
 }  // namespace media
 }  // namespace shaka

packager/media/event/combined_muxer_listener.cc

@@ -65,5 +65,12 @@ void CombinedMuxerListener::OnNewSegment(const std::string& file_name,
   }
 }
 
+void CombinedMuxerListener::OnCueEvent(uint64_t timestamp,
+                                       const std::string& cue_data) {
+  for (auto& listener : muxer_listeners_) {
+    listener->OnCueEvent(timestamp, cue_data);
+  }
+}
+
 }  // namespace media
 }  // namespace shaka

packager/media/event/combined_muxer_listener.h

@@ -39,6 +39,7 @@ class CombinedMuxerListener : public MuxerListener {
                     uint64_t start_time,
                     uint64_t duration,
                     uint64_t segment_file_size) override;
+  void OnCueEvent(uint64_t timestamp, const std::string& cue_data) override;
 
  private:
   std::list<std::unique_ptr<MuxerListener>> muxer_listeners_;

packager/media/event/hls_notify_muxer_listener.cc

@@ -155,16 +155,19 @@ void HlsNotifyMuxerListener::OnMediaEnd(const MediaRanges& media_ranges,
     const std::vector<Range>& subsegment_ranges =
         media_ranges.subsegment_ranges;
     size_t num_subsegments = subsegment_ranges.size();
-    if (segment_infos_.size() != num_subsegments) {
+    if (subsegments_.size() != num_subsegments) {
       LOG(WARNING) << "Number of subsegment ranges (" << num_subsegments
                    << ") does not match the number of subsegments notified to "
                       "OnNewSegment() ("
-                   << segment_infos_.size() << ").";
+                   << subsegments_.size() << ").";
-      num_subsegments = std::min(segment_infos_.size(), num_subsegments);
+      num_subsegments = std::min(subsegments_.size(), num_subsegments);
     }
     for (size_t i = 0; i < num_subsegments; ++i) {
       const Range& range = subsegment_ranges[i];
-      const SegmentInfo& subsegment_info = segment_infos_[i];
+      const SubsegmentInfo& subsegment_info = subsegments_[i];
+      if (subsegment_info.cue_break) {
+        hls_notifier_->NotifyCueEvent(stream_id_, subsegment_info.start_time);
+      }
       hls_notifier_->NotifyNewSegment(
           stream_id_, media_info_.media_file_name(), subsegment_info.start_time,
           subsegment_info.duration, range.start, range.end + 1 - range.start);
@@ -177,10 +180,10 @@ void HlsNotifyMuxerListener::OnNewSegment(const std::string& file_name,
                                           uint64_t duration,
                                           uint64_t segment_file_size) {
   if (!media_info_.has_segment_template()) {
-    SegmentInfo info;
+    SubsegmentInfo subsegment = {start_time, duration, segment_file_size,
-    info.duration = duration;
+                                 next_subsegment_contains_cue_break_};
-    info.start_time = start_time;
+    subsegments_.push_back(subsegment);
-    segment_infos_.push_back(info);
+    next_subsegment_contains_cue_break_ = false;
     return;
   }
   // For multisegment, it always starts from the beginning of the file.
@@ -191,5 +194,14 @@ void HlsNotifyMuxerListener::OnNewSegment(const std::string& file_name,
   LOG_IF(WARNING, !result) << "Failed to add new segment.";
 }
 
+void HlsNotifyMuxerListener::OnCueEvent(uint64_t timestamp,
+                                        const std::string& cue_data) {
+  if (!media_info_.has_segment_template()) {
+    next_subsegment_contains_cue_break_ = true;
+    return;
+  }
+  hls_notifier_->NotifyCueEvent(stream_id_, timestamp);
+}
+
 }  // namespace media
 }  // namespace shaka

packager/media/event/hls_notify_muxer_listener.h

@@ -12,7 +12,6 @@
 #include "packager/base/macros.h"
 #include "packager/media/event/muxer_listener.h"
 #include "packager/mpd/base/media_info.pb.h"
-#include "packager/mpd/base/segment_info.h"
 
 namespace shaka {
 
@@ -59,9 +58,18 @@ class HlsNotifyMuxerListener : public MuxerListener {
                     uint64_t start_time,
                     uint64_t duration,
                     uint64_t segment_file_size) override;
+  void OnCueEvent(uint64_t timestamp, const std::string& cue_data) override;
   /// @}
 
  private:
+  // This stores data passed into OnNewSegment() for VOD.
+  struct SubsegmentInfo {
+    uint64_t start_time;
+    uint64_t duration;
+    uint64_t segment_file_size;
+    bool cue_break;
+  };
+
   const std::string playlist_name_;
   const std::string ext_x_media_name_;
   const std::string ext_x_media_group_id_;
@@ -79,7 +87,9 @@ class HlsNotifyMuxerListener : public MuxerListener {
   // MediaInfo passed to Notifier::OnNewStream(). Mainly for single segment
   // playlists.
   MediaInfo media_info_;
-  std::vector<SegmentInfo> segment_infos_;
+  std::vector<SubsegmentInfo> subsegments_;
+  // Whether the next subsegment contains AdCue break.
+  bool next_subsegment_contains_cue_break_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(HlsNotifyMuxerListener);
 };

packager/media/event/hls_notify_muxer_listener_unittest.cc

@@ -40,6 +40,7 @@ class MockHlsNotifier : public hls::HlsNotifier {
                     uint64_t duration,
                     uint64_t start_byte_offset,
                     uint64_t size));
+  MOCK_METHOD2(NotifyCueEvent, bool(uint32_t stream_id, uint64_t timestamp));
   MOCK_METHOD5(
       NotifyEncryptionUpdate,
       bool(uint32_t stream_id,
@@ -322,7 +323,7 @@ TEST_F(HlsNotifyMuxerListenerTest, OnMediaEnd) {
   listener_.OnMediaEnd(MuxerListener::MediaRanges(), 0);
 }
 
-TEST_F(HlsNotifyMuxerListenerTest, OnNewSegment) {
+TEST_F(HlsNotifyMuxerListenerTest, OnNewSegmentAndCueEvent) {
   ON_CALL(mock_notifier_, NotifyNewStream(_, _, _, _, _))
       .WillByDefault(Return(true));
   VideoStreamInfoParameters video_params = GetDefaultVideoStreamInfoParams();
@@ -336,9 +337,11 @@ TEST_F(HlsNotifyMuxerListenerTest, OnNewSegment) {
   const uint64_t kStartTime = 19283;
   const uint64_t kDuration = 98028;
   const uint64_t kFileSize = 756739;
+  EXPECT_CALL(mock_notifier_, NotifyCueEvent(_, kStartTime));
   EXPECT_CALL(mock_notifier_,
               NotifyNewSegment(_, StrEq("new_segment_name10.ts"), kStartTime,
                                kDuration, _, kFileSize));
+  listener_.OnCueEvent(kStartTime, "dummy cue data");
   listener_.OnNewSegment("new_segment_name10.ts", kStartTime, kDuration,
                          kFileSize);
 }
@@ -361,6 +364,7 @@ TEST_F(HlsNotifyMuxerListenerTest, NoSegmentTemplateOnMediaEnd) {
   const uint64_t kDuration = 98028;
   const uint64_t kFileSize = 756739;
 
+  listener_.OnCueEvent(kStartTime, "dummy cue data");
   listener_.OnNewSegment("filename.mp4", kStartTime, kDuration,
                          kFileSize);
   MuxerListener::MediaRanges ranges;
@@ -380,6 +384,7 @@ TEST_F(HlsNotifyMuxerListenerTest, NoSegmentTemplateOnMediaEnd) {
   ranges.index_range = index_range;
   ranges.subsegment_ranges = segment_ranges;
 
+  EXPECT_CALL(mock_notifier_, NotifyCueEvent(_, kStartTime));
   EXPECT_CALL(mock_notifier_,
               NotifyNewSegment(_, StrEq("filename.mp4"), kStartTime,
                                kDuration, kSegmentStartOffset, kFileSize));

packager/media/event/mock_muxer_listener.h

@@ -61,6 +61,9 @@ class MockMuxerListener : public MuxerListener {
                     uint64_t start_time,
                     uint64_t duration,
                     uint64_t segment_file_size));
+
+  MOCK_METHOD2(OnCueEvent,
+               void(uint64_t timestamp, const std::string& cue_data));
 };
 
 }  // namespace media

packager/media/event/mpd_notify_muxer_listener.cc

@@ -132,10 +132,13 @@ void MpdNotifyMuxerListener::OnMediaEnd(const MediaRanges& media_ranges,
   mpd_notifier_->NotifyNewContainer(*media_info_, &id);
   // TODO(rkuroiwa): Use media_ranges.subsegment_ranges instead of caching the
   // subsegments.
-  for (std::list<SubsegmentInfo>::const_iterator it = subsegments_.begin();
+  for (const SubsegmentInfo& subsegment : subsegments_) {
-       it != subsegments_.end(); ++it) {
+    if (subsegment.cue_break) {
-    mpd_notifier_->NotifyNewSegment(id, it->start_time, it->duration,
+      mpd_notifier_->NotifyCueEvent(id, subsegment.start_time);
-                                    it->segment_file_size);
+    }
+    mpd_notifier_->NotifyNewSegment(id, subsegment.start_time,
+                                    subsegment.duration,
+                                    subsegment.segment_file_size);
   }
   subsegments_.clear();
   mpd_notifier_->Flush();
@@ -152,10 +155,22 @@ void MpdNotifyMuxerListener::OnNewSegment(const std::string& file_name,
     if (mpd_notifier_->mpd_type() == MpdType::kDynamic)
       mpd_notifier_->Flush();
   } else {
-    SubsegmentInfo subsegment = {start_time, duration, segment_file_size};
+    SubsegmentInfo subsegment = {start_time, duration, segment_file_size,
+                                 next_subsegment_contains_cue_break_};
+    next_subsegment_contains_cue_break_ = false;
     subsegments_.push_back(subsegment);
   }
 }
 
+void MpdNotifyMuxerListener::OnCueEvent(uint64_t timestamp,
+                                        const std::string& cue_data) {
+  // Not using |cue_data| at this moment.
+  if (mpd_notifier_->dash_profile() == DashProfile::kLive) {
+    mpd_notifier_->NotifyCueEvent(notification_id_, timestamp);
+  } else {
+    next_subsegment_contains_cue_break_ = true;
+  }
+}
+
 }  // namespace media
 }  // namespace shaka

packager/media/event/mpd_notify_muxer_listener.h

@@ -51,6 +51,7 @@ class MpdNotifyMuxerListener : public MuxerListener {
                     uint64_t start_time,
                     uint64_t duration,
                     uint64_t segment_file_size) override;
+  void OnCueEvent(uint64_t timestamp, const std::string& cue_data) override;
   /// @}
 
  private:
@@ -59,15 +60,16 @@ class MpdNotifyMuxerListener : public MuxerListener {
     uint64_t start_time;
     uint64_t duration;
     uint64_t segment_file_size;
+    bool cue_break;
   };
 
-  MpdNotifier* const mpd_notifier_;
+  MpdNotifier* const mpd_notifier_ = nullptr;
-  uint32_t notification_id_;
+  uint32_t notification_id_ = 0;
   std::unique_ptr<MediaInfo> media_info_;
 
-  bool is_encrypted_;
+  bool is_encrypted_ = false;
   // Storage for values passed to OnEncryptionInfoReady().
-  FourCC protection_scheme_;
+  FourCC protection_scheme_ = FOURCC_NULL;
   std::vector<uint8_t> default_key_id_;
   std::vector<ProtectionSystemSpecificInfo> key_system_info_;
 
@@ -76,6 +78,8 @@ class MpdNotifyMuxerListener : public MuxerListener {
   // (in OnMediaEnd). This is not used for live because NotifyNewSegment() is
   // called immediately in OnNewSegment().
   std::list<SubsegmentInfo> subsegments_;
+  // Whether the next subsegment contains AdCue break.
+  bool next_subsegment_contains_cue_break_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(MpdNotifyMuxerListener);
 };

packager/media/event/mpd_notify_muxer_listener_unittest.cc

@@ -251,6 +251,7 @@ TEST_F(MpdNotifyMuxerListenerTest, VodOnNewSegment) {
                           kDefaultReferenceTimeScale,
                           MuxerListener::kContainerMp4);
   listener_->OnNewSegment("", kStartTime1, kDuration1, kSegmentFileSize1);
+  listener_->OnCueEvent(kStartTime2, "dummy cue data");
   listener_->OnNewSegment("", kStartTime2, kDuration2, kSegmentFileSize2);
   ::testing::Mock::VerifyAndClearExpectations(notifier_.get());
 
@@ -259,6 +260,7 @@ TEST_F(MpdNotifyMuxerListenerTest, VodOnNewSegment) {
                               ExpectMediaInfoEq(kExpectedDefaultMediaInfo), _));
   EXPECT_CALL(*notifier_,
               NotifyNewSegment(_, kStartTime1, kDuration1, kSegmentFileSize1));
+  EXPECT_CALL(*notifier_, NotifyCueEvent(_, kStartTime2));
   EXPECT_CALL(*notifier_,
               NotifyNewSegment(_, kStartTime2, kDuration2, kSegmentFileSize2));
   EXPECT_CALL(*notifier_, Flush());
@@ -317,6 +319,7 @@ TEST_P(MpdNotifyMuxerListenerTest, LiveNoKeyRotation) {
   // Flush should only be called once in OnMediaEnd.
   if (GetParam() == MpdType::kDynamic)
     EXPECT_CALL(*notifier_, Flush());
+  EXPECT_CALL(*notifier_, NotifyCueEvent(_, kStartTime2));
   EXPECT_CALL(*notifier_,
               NotifyNewSegment(_, kStartTime2, kDuration2, kSegmentFileSize2));
   if (GetParam() == MpdType::kDynamic)
@@ -330,6 +333,7 @@ TEST_P(MpdNotifyMuxerListenerTest, LiveNoKeyRotation) {
                           kDefaultReferenceTimeScale,
                           MuxerListener::kContainerMp4);
   listener_->OnNewSegment("", kStartTime1, kDuration1, kSegmentFileSize1);
+  listener_->OnCueEvent(kStartTime2, "dummy cue data");
   listener_->OnNewSegment("", kStartTime2, kDuration2, kSegmentFileSize2);
   ::testing::Mock::VerifyAndClearExpectations(notifier_.get());
 

packager/media/event/muxer_listener.h

@@ -127,6 +127,11 @@ class MuxerListener {
                             uint64_t duration,
                             uint64_t segment_file_size) = 0;
 
+  /// Called when there is a new Ad Cue, which should align with (sub)segments.
+  /// @param timestamp indicate the cue timestamp.
+  /// @param cue_data is the data of the cue.
+  virtual void OnCueEvent(uint64_t timestamp, const std::string& cue_data) = 0;
+
  protected:
   MuxerListener() {};
 };

packager/media/event/vod_media_info_dump_muxer_listener.cc

@@ -88,6 +88,11 @@ void VodMediaInfoDumpMuxerListener::OnNewSegment(const std::string& file_name,
                                                  uint64_t duration,
                                                  uint64_t segment_file_size) {}
 
+void VodMediaInfoDumpMuxerListener::OnCueEvent(uint64_t timestamp,
+                                               const std::string& cue_data) {
+  NOTIMPLEMENTED();
+}
+
 // static
 bool VodMediaInfoDumpMuxerListener::WriteMediaInfoToFile(
     const MediaInfo& media_info,

packager/media/event/vod_media_info_dump_muxer_listener.h

@@ -50,6 +50,7 @@ class VodMediaInfoDumpMuxerListener : public MuxerListener {
                     uint64_t start_time,
                     uint64_t duration,
                     uint64_t segment_file_size) override;
+  void OnCueEvent(uint64_t timestamp, const std::string& cue_data) override;
   /// @}
 
   /// Write @a media_info to @a output_file_path in human readable format.

packager/mpd/base/mock_mpd_notifier.h

@@ -31,6 +31,7 @@ class MockMpdNotifier : public MpdNotifier {
                     uint64_t start_time,
                     uint64_t duration,
                     uint64_t size));
+  MOCK_METHOD2(NotifyCueEvent, bool(uint32_t container_id, uint64_t timestamp));
   MOCK_METHOD4(NotifyEncryptionUpdate,
                bool(uint32_t container_id,
                     const std::string& drm_uuid,

packager/mpd/base/mpd_notifier.h

@@ -71,6 +71,13 @@ class MpdNotifier {
                                 uint64_t duration,
                                 uint64_t size) = 0;
 
+  /// Notifies MpdBuilder that there is a new CueEvent.
+  /// @param container_id Container ID obtained from calling
+  ///        NotifyNewContainer().
+  /// @param timestamp is the timestamp of the CueEvent.
+  /// @return true on success, false otherwise.
+  virtual bool NotifyCueEvent(uint32_t container_id, uint64_t timestamp) = 0;
+
   /// Notifiers MpdBuilder that there is a new PSSH for the container.
   /// This may be called whenever the key has to change, e.g. key rotation.
   /// @param container_id Container ID obtained from calling

packager/mpd/base/simple_mpd_notifier.cc

@@ -96,6 +96,12 @@ bool SimpleMpdNotifier::NotifyNewSegment(uint32_t container_id,
   return true;
 }
 
+bool SimpleMpdNotifier::NotifyCueEvent(uint32_t container_id,
+                                       uint64_t timestamp) {
+  NOTIMPLEMENTED();
+  return false;
+}
+
 bool SimpleMpdNotifier::NotifyEncryptionUpdate(
     uint32_t container_id,
     const std::string& drm_uuid,

packager/mpd/base/simple_mpd_notifier.h

@@ -43,6 +43,7 @@ class SimpleMpdNotifier : public MpdNotifier {
                         uint64_t start_time,
                         uint64_t duration,
                         uint64_t size) override;
+  bool NotifyCueEvent(uint32_t container_id, uint64_t timestamp) override;
   bool NotifyEncryptionUpdate(uint32_t container_id,
                               const std::string& drm_uuid,
                               const std::vector<uint8_t>& new_key_id,