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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_BASE_MEDIA_TRACKS_H_ | 5 #ifndef MEDIA_BASE_MEDIA_TRACKS_H_ |
6 #define MEDIA_BASE_MEDIA_TRACKS_H_ | 6 #define MEDIA_BASE_MEDIA_TRACKS_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "base/macros.h" | 12 #include "base/macros.h" |
13 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
14 #include "media/base/media_export.h" | 14 #include "media/base/media_export.h" |
15 #include "media/base/media_track.h" | 15 #include "media/base/media_track.h" |
16 | 16 |
17 namespace media { | 17 namespace media { |
18 | 18 |
19 class AudioDecoderConfig; | 19 class AudioDecoderConfig; |
| 20 class DemuxerStream; |
20 class VideoDecoderConfig; | 21 class VideoDecoderConfig; |
21 | 22 |
22 class MEDIA_EXPORT MediaTracks { | 23 class MEDIA_EXPORT MediaTracks { |
23 public: | 24 public: |
24 typedef std::vector<scoped_ptr<MediaTrack>> MediaTracksCollection; | 25 typedef std::vector<scoped_ptr<MediaTrack>> MediaTracksCollection; |
| 26 typedef std::map<unsigned, const DemuxerStream*> TrackIdToDemuxStreamMap; |
25 | 27 |
26 MediaTracks(); | 28 MediaTracks(); |
27 ~MediaTracks(); | 29 ~MediaTracks(); |
28 | 30 |
29 // Callers need to ensure that track id is unique. | 31 // Callers need to ensure that track id is unique. |
30 void AddAudioTrack(const AudioDecoderConfig& config, | 32 const MediaTrack* AddAudioTrack(const AudioDecoderConfig& config, |
31 const std::string& id, | 33 const std::string& id, |
32 const std::string& kind, | 34 const std::string& kind, |
33 const std::string& label, | 35 const std::string& label, |
34 const std::string& language); | 36 const std::string& language); |
35 // Callers need to ensure that track id is unique. | 37 // Callers need to ensure that track id is unique. |
36 void AddVideoTrack(const VideoDecoderConfig& config, | 38 const MediaTrack* AddVideoTrack(const VideoDecoderConfig& config, |
37 const std::string& id, | 39 const std::string& id, |
38 const std::string& kind, | 40 const std::string& kind, |
39 const std::string& label, | 41 const std::string& label, |
40 const std::string& language); | 42 const std::string& language); |
41 | 43 |
42 const MediaTracksCollection& tracks() const { return tracks_; } | 44 const MediaTracksCollection& tracks() const { return tracks_; } |
43 | 45 |
| 46 // Notifies MediaTracks that a given media |track| object is backed by the |
| 47 // given DemuxerStream |stream| object. |
| 48 void SetDemuxerStreamForMediaTrack(const MediaTrack* track, |
| 49 const DemuxerStream* stream); |
| 50 // Notifies MediaTracks that external (blink) track ids have been assigned to |
| 51 // the media |tracks_|. The size and ordering of |track_ids| must match the |
| 52 // size and ordering of tracks in the |tracks_| collection, and |
| 53 // |track_to_demux_stream_map_| must have an entry for each track in |tracks_| |
| 54 // (set by SetDemuxerStreamForMediaTrack()). |
| 55 TrackIdToDemuxStreamMap OnTrackIdsAssigned( |
| 56 const std::vector<unsigned>& track_ids) const; |
| 57 |
44 const AudioDecoderConfig& getAudioConfig(const std::string& id) const; | 58 const AudioDecoderConfig& getAudioConfig(const std::string& id) const; |
45 const VideoDecoderConfig& getVideoConfig(const std::string& id) const; | 59 const VideoDecoderConfig& getVideoConfig(const std::string& id) const; |
46 | 60 |
47 // TODO(servolk): These are temporary helpers useful until all code paths are | 61 // TODO(servolk): These are temporary helpers useful until all code paths are |
48 // converted to properly handle multiple media tracks. | 62 // converted to properly handle multiple media tracks. |
49 const AudioDecoderConfig& getFirstAudioConfig() const; | 63 const AudioDecoderConfig& getFirstAudioConfig() const; |
50 const VideoDecoderConfig& getFirstVideoConfig() const; | 64 const VideoDecoderConfig& getFirstVideoConfig() const; |
51 | 65 |
52 private: | 66 private: |
53 MediaTracksCollection tracks_; | 67 MediaTracksCollection tracks_; |
54 std::map<std::string, AudioDecoderConfig> audio_configs_; | 68 std::map<std::string, AudioDecoderConfig> audio_configs_; |
55 std::map<std::string, VideoDecoderConfig> video_configs_; | 69 std::map<std::string, VideoDecoderConfig> video_configs_; |
56 | 70 |
| 71 typedef std::map<const MediaTrack*, const DemuxerStream*> |
| 72 TrackToDemuxStreamMap; |
| 73 TrackToDemuxStreamMap track_to_demux_stream_map_; |
| 74 |
57 DISALLOW_COPY_AND_ASSIGN(MediaTracks); | 75 DISALLOW_COPY_AND_ASSIGN(MediaTracks); |
58 }; | 76 }; |
59 | 77 |
60 } // namespace media | 78 } // namespace media |
61 | 79 |
62 #endif // MEDIA_BASE_MEDIA_TRACKS_H_ | 80 #endif // MEDIA_BASE_MEDIA_TRACKS_H_ |
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