text: // Copyright (c) 2016 The WebM project authors. All Rights Reserved.
  //
  // Use of this source code is governed by a BSD-style license
  // that can be found in the LICENSE file in the root of the source
  // tree. An additional intellectual property rights grant can be found
  // in the file PATENTS.  All contributing project authors may
  // be found in the AUTHORS file in the root of the source tree.
  #ifndef SRC_CLUSTER_PARSER_H_
  #define SRC_CLUSTER_PARSER_H_
  
  #include "src/block_group_parser.h"
  #include "src/block_parser.h"
  #include "src/int_parser.h"
  #include "src/master_value_parser.h"
  #include "webm/dom_types.h"
  #include "webm/id.h"
  
  namespace webm {
  
  // Spec reference:
  // http://matroska.org/technical/specs/index.html#Cluster
  // http://www.webmproject.org/docs/container/#Cluster
  class ClusterParser : public MasterValueParser<Cluster> {
   public:
    ClusterParser()
        : MasterValueParser<Cluster>(
              MakeChild<UnsignedIntParser>(Id::kTimecode, &Cluster::timecode),
              MakeChild<UnsignedIntParser>(Id::kPrevSize,
                                           &Cluster::previous_size),
              MakeChild<SimpleBlockParser>(Id::kSimpleBlock,
                                           &Cluster::simple_blocks)
                  .UseAsStartEvent(),
              MakeChild<BlockGroupParser>(Id::kBlockGroup, &Cluster::block_groups)
                  .UseAsStartEvent()) {}
  
   protected:
    Status OnParseStarted(Callback* callback, Action* action) override {
      return callback->OnClusterBegin(metadata(Id::kCluster), value(), action);
    }
  
    Status OnParseCompleted(Callback* callback) override {
      return callback->OnClusterEnd(metadata(Id::kCluster), value());
    }
  };
  
  }  // namespace webm
  
  #endif  // SRC_CLUSTER_PARSER_H_
  