media/webm/tracks_builder.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_WEBM_TRACKS_BUILDER_H_
   6 #define MEDIA_WEBM_TRACKS_BUILDER_H_
   7
   8 #include <list>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/basictypes.h"
  13
  14 namespace media {
  15
  16 class TracksBuilder {
  17  public:
  18   TracksBuilder();
  19   ~TracksBuilder();
  20
  21   void AddTrack(int track_num, int track_type, const std::string& codec_id,
  22                 const std::string& name, const std::string& language);
  23
  24   std::vector<uint8> Finish();
  25
  26  private:
  27   int GetTracksSize() const;
  28   int GetTracksPayloadSize() const;
  29   void WriteTracks(uint8* buffer, int buffer_size) const;
  30
  31   class Track {
  32    public:
  33     Track(int track_num, int track_type, const std::string& codec_id,
  34           const std::string& name, const std::string& language);
  35
  36     int GetSize() const;
  37     void Write(uint8** buf, int* buf_size) const;
  38    private:
  39     int GetPayloadSize() const;
  40
  41     int track_num_;
  42     int track_type_;
  43     std::string codec_id_;
  44     std::string name_;
  45     std::string language_;
  46   };
  47
  48   typedef std::list<Track> TrackList;
  49   TrackList tracks_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(TracksBuilder);
  52 };
  53
  54 }  // namespace media
  55
  56 #endif  // MEDIA_WEBM_TRACKS_BUILDER_H_