text: /*
   * Copyright (C) 2010 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef STAGEFRIGHT_METADATA_RETRIEVER_H_
  
  #define STAGEFRIGHT_METADATA_RETRIEVER_H_
  
  #include <media/IMediaExtractor.h>
  #include <media/MediaMetadataRetrieverInterface.h>
  
  #include <utils/KeyedVector.h>
  
  namespace android {
  
  class DataSource;
  class MediaExtractor;
  
  struct StagefrightMetadataRetriever : public MediaMetadataRetrieverInterface {
      StagefrightMetadataRetriever();
      virtual ~StagefrightMetadataRetriever();
  
      virtual status_t setDataSource(
              const sp<IMediaHTTPService> &httpService,
              const char *url,
              const KeyedVector<String8, String8> *headers);
  
      virtual status_t setDataSource(int fd, int64_t offset, int64_t length);
      virtual status_t setDataSource(const sp<DataSource>& source);
  
      virtual VideoFrame *getFrameAtTime(int64_t timeUs, int option);
      virtual MediaAlbumArt *extractAlbumArt();
      virtual const char *extractMetadata(int keyCode);
  
  private:
      sp<DataSource> mSource;
      sp<IMediaExtractor> mExtractor;
  
      bool mParsedMetaData;
      KeyedVector<int, String8> mMetaData;
      MediaAlbumArt *mAlbumArt;
  
      void parseMetaData();
      // Delete album art and clear metadata.
      void clearMetadata();
  
      StagefrightMetadataRetriever(const StagefrightMetadataRetriever &);
  
      StagefrightMetadataRetriever &operator=(
              const StagefrightMetadataRetriever &);
  };
  
  }  // namespace android
  
  #endif  // STAGEFRIGHT_METADATA_RETRIEVER_H_
  