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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; | |
21 class VideoDecoderConfig; | 20 class VideoDecoderConfig; |
22 | 21 |
23 class MEDIA_EXPORT MediaTracks { | 22 class MEDIA_EXPORT MediaTracks { |
24 public: | 23 public: |
25 typedef std::vector<scoped_ptr<MediaTrack>> MediaTracksCollection; | 24 typedef std::vector<scoped_ptr<MediaTrack>> MediaTracksCollection; |
26 typedef std::map<unsigned, const DemuxerStream*> TrackIdToDemuxStreamMap; | |
27 | 25 |
28 MediaTracks(); | 26 MediaTracks(); |
29 ~MediaTracks(); | 27 ~MediaTracks(); |
30 | 28 |
31 // Callers need to ensure that track id is unique. | 29 // Callers need to ensure that track id is unique. |
32 const MediaTrack* AddAudioTrack(const AudioDecoderConfig& config, | 30 void AddAudioTrack(const AudioDecoderConfig& config, |
33 const std::string& id, | 31 const std::string& id, |
34 const std::string& kind, | 32 const std::string& kind, |
35 const std::string& label, | 33 const std::string& label, |
36 const std::string& language); | 34 const std::string& language); |
37 // Callers need to ensure that track id is unique. | 35 // Callers need to ensure that track id is unique. |
38 const MediaTrack* AddVideoTrack(const VideoDecoderConfig& config, | 36 void AddVideoTrack(const VideoDecoderConfig& config, |
39 const std::string& id, | 37 const std::string& id, |
40 const std::string& kind, | 38 const std::string& kind, |
41 const std::string& label, | 39 const std::string& label, |
42 const std::string& language); | 40 const std::string& language); |
43 | 41 |
44 const MediaTracksCollection& tracks() const { return tracks_; } | 42 const MediaTracksCollection& tracks() const { return tracks_; } |
45 | 43 |
46 // TODO(servolk,wolenetz): Consider refactoring media track creation in MSE to | |
47 // simplify track id to DemuxerStream mapping. crbug.com/604088 | |
48 | |
49 // Notifies MediaTracks that a given media |track| object is backed by the | |
50 // given DemuxerStream |stream| object. | |
51 void SetDemuxerStreamForMediaTrack(const MediaTrack* track, | |
52 const DemuxerStream* stream); | |
53 // Notifies MediaTracks that external (blink) track ids have been assigned to | |
54 // the media |tracks_|. The size and ordering of |track_ids| must match the | |
55 // size and ordering of tracks in the |tracks_| collection, and | |
56 // |track_to_demux_stream_map_| must have an entry for each track in |tracks_| | |
57 // (set by SetDemuxerStreamForMediaTrack()). | |
58 TrackIdToDemuxStreamMap OnTrackIdsAssigned( | |
59 const std::vector<unsigned>& track_ids) const; | |
60 | |
61 const AudioDecoderConfig& getAudioConfig(const std::string& id) const; | 44 const AudioDecoderConfig& getAudioConfig(const std::string& id) const; |
62 const VideoDecoderConfig& getVideoConfig(const std::string& id) const; | 45 const VideoDecoderConfig& getVideoConfig(const std::string& id) const; |
63 | 46 |
64 // TODO(servolk): These are temporary helpers useful until all code paths are | 47 // TODO(servolk): These are temporary helpers useful until all code paths are |
65 // converted to properly handle multiple media tracks. | 48 // converted to properly handle multiple media tracks. |
66 const AudioDecoderConfig& getFirstAudioConfig() const; | 49 const AudioDecoderConfig& getFirstAudioConfig() const; |
67 const VideoDecoderConfig& getFirstVideoConfig() const; | 50 const VideoDecoderConfig& getFirstVideoConfig() const; |
68 | 51 |
69 private: | 52 private: |
70 MediaTracksCollection tracks_; | 53 MediaTracksCollection tracks_; |
71 std::map<std::string, AudioDecoderConfig> audio_configs_; | 54 std::map<std::string, AudioDecoderConfig> audio_configs_; |
72 std::map<std::string, VideoDecoderConfig> video_configs_; | 55 std::map<std::string, VideoDecoderConfig> video_configs_; |
73 | 56 |
74 typedef std::map<const MediaTrack*, const DemuxerStream*> | |
75 TrackToDemuxStreamMap; | |
76 TrackToDemuxStreamMap track_to_demux_stream_map_; | |
77 | |
78 DISALLOW_COPY_AND_ASSIGN(MediaTracks); | 57 DISALLOW_COPY_AND_ASSIGN(MediaTracks); |
79 }; | 58 }; |
80 | 59 |
81 } // namespace media | 60 } // namespace media |
82 | 61 |
83 #endif // MEDIA_BASE_MEDIA_TRACKS_H_ | 62 #endif // MEDIA_BASE_MEDIA_TRACKS_H_ |
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