1 // Copyright (c) 2016 The WebM project authors. All Rights Reserved. 2 // 3 // Use of this source code is governed by a BSD-style license 4 // that can be found in the LICENSE file in the root of the source 5 // tree. An additional intellectual property rights grant can be found 6 // in the file PATENTS. All contributing project authors may 7 // be found in the AUTHORS file in the root of the source tree. 8 #ifndef SRC_CLUSTER_PARSER_H_ 9 #define SRC_CLUSTER_PARSER_H_ 10 11 #include "src/block_group_parser.h" 12 #include "src/block_parser.h" 13 #include "src/int_parser.h" 14 #include "src/master_value_parser.h" 15 #include "webm/dom_types.h" 16 #include "webm/id.h" 17 18 namespace webm { 19 20 // Spec reference: 21 // http://matroska.org/technical/specs/index.html#Cluster 22 // http://www.webmproject.org/docs/container/#Cluster 23 class ClusterParser : public MasterValueParser<Cluster> { 24 public: ClusterParser()25 ClusterParser() 26 : MasterValueParser<Cluster>( 27 MakeChild<UnsignedIntParser>(Id::kTimecode, &Cluster::timecode), 28 MakeChild<UnsignedIntParser>(Id::kPrevSize, 29 &Cluster::previous_size), 30 MakeChild<SimpleBlockParser>(Id::kSimpleBlock, 31 &Cluster::simple_blocks) 32 .UseAsStartEvent(), 33 MakeChild<BlockGroupParser>(Id::kBlockGroup, &Cluster::block_groups) 34 .UseAsStartEvent()) {} 35 36 protected: OnParseStarted(Callback * callback,Action * action)37 Status OnParseStarted(Callback* callback, Action* action) override { 38 return callback->OnClusterBegin(metadata(Id::kCluster), value(), action); 39 } 40 OnParseCompleted(Callback * callback)41 Status OnParseCompleted(Callback* callback) override { 42 return callback->OnClusterEnd(metadata(Id::kCluster), value()); 43 } 44 }; 45 46 } // namespace webm 47 48 #endif // SRC_CLUSTER_PARSER_H_ 49