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Side by Side Diff: media/base/demuxer.h

Issue 1812543003: Allow muting/unmuting audio through media track API (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@blink-sb-tracks6
Patch Set: rebase Created 4 years, 8 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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_DEMUXER_H_ 5 #ifndef MEDIA_BASE_DEMUXER_H_
6 #define MEDIA_BASE_DEMUXER_H_ 6 #define MEDIA_BASE_DEMUXER_H_
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include <vector> 10 #include <vector>
11 11
12 #include "base/macros.h" 12 #include "base/macros.h"
13 #include "base/time/time.h" 13 #include "base/time/time.h"
14 #include "media/base/data_source.h" 14 #include "media/base/data_source.h"
15 #include "media/base/demuxer_stream.h" 15 #include "media/base/demuxer_stream.h"
16 #include "media/base/demuxer_stream_provider.h" 16 #include "media/base/demuxer_stream_provider.h"
17 #include "media/base/eme_constants.h" 17 #include "media/base/eme_constants.h"
18 #include "media/base/media_export.h" 18 #include "media/base/media_export.h"
19 #include "media/base/pipeline_status.h" 19 #include "media/base/pipeline_status.h"
20 #include "media/base/ranges.h" 20 #include "media/base/ranges.h"
21 21
22 namespace media { 22 namespace media {
23 23
24 class TextTrackConfig; 24 class TextTrackConfig;
25 class MediaTrack;
25 class MediaTracks; 26 class MediaTracks;
26 27
27 class MEDIA_EXPORT DemuxerHost { 28 class MEDIA_EXPORT DemuxerHost {
28 public: 29 public:
29 // Notify the host that buffered time ranges have changed. Note that buffered 30 // Notify the host that buffered time ranges have changed. Note that buffered
30 // time ranges can grow (when new media data is appended), but they can also 31 // time ranges can grow (when new media data is appended), but they can also
31 // shrink (when buffering reaches limit capacity and some buffered data 32 // shrink (when buffering reaches limit capacity and some buffered data
32 // becomes evicted, e.g. due to MSE GC algorithm, or by explicit removal of 33 // becomes evicted, e.g. due to MSE GC algorithm, or by explicit removal of
33 // ranges directed by MSE web app). 34 // ranges directed by MSE web app).
34 virtual void OnBufferedTimeRangesChanged( 35 virtual void OnBufferedTimeRangesChanged(
(...skipping 24 matching lines...) Expand all
59 class MEDIA_EXPORT Demuxer : public DemuxerStreamProvider { 60 class MEDIA_EXPORT Demuxer : public DemuxerStreamProvider {
60 public: 61 public:
61 // A new potentially encrypted stream has been parsed. 62 // A new potentially encrypted stream has been parsed.
62 // First parameter - The type of initialization data. 63 // First parameter - The type of initialization data.
63 // Second parameter - The initialization data associated with the stream. 64 // Second parameter - The initialization data associated with the stream.
64 typedef base::Callback<void(EmeInitDataType type, 65 typedef base::Callback<void(EmeInitDataType type,
65 const std::vector<uint8_t>& init_data)> 66 const std::vector<uint8_t>& init_data)>
66 EncryptedMediaInitDataCB; 67 EncryptedMediaInitDataCB;
67 68
68 // Notifies demuxer clients that media track configuration has been updated 69 // Notifies demuxer clients that media track configuration has been updated
69 // (e.g. the inital stream metadata has been parsed successfully, or a new 70 // (e.g. the inital stream metadata has been parsed successfully, or a new
wolenetz 2016/03/30 00:31:32 nit aside: s/inital/initial/
servolk 2016/03/30 01:13:12 Done.
70 // init segment has been parsed successfully in MSE case). 71 // init segment has been parsed successfully in MSE case).
71 typedef base::Callback<void(scoped_ptr<MediaTracks>)> MediaTracksUpdatedCB; 72 typedef base::Callback<void(scoped_ptr<MediaTracks>)> MediaTracksUpdatedCB;
72 73
73 Demuxer(); 74 Demuxer();
74 ~Demuxer() override; 75 ~Demuxer() override;
75 76
76 // Returns the name of the demuxer for logging purpose. 77 // Returns the name of the demuxer for logging purpose.
77 virtual std::string GetDisplayName() const = 0; 78 virtual std::string GetDisplayName() const = 0;
78 79
79 // Completes initialization of the demuxer. 80 // Completes initialization of the demuxer.
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after
126 virtual base::TimeDelta GetStartTime() const = 0; 127 virtual base::TimeDelta GetStartTime() const = 0;
127 128
128 // Returns Time represented by presentation timestamp 0. 129 // Returns Time represented by presentation timestamp 0.
129 // If the timstamps are not associated with a Time, then 130 // If the timstamps are not associated with a Time, then
130 // a null Time is returned. 131 // a null Time is returned.
131 virtual base::Time GetTimelineOffset() const = 0; 132 virtual base::Time GetTimelineOffset() const = 0;
132 133
133 // Returns the memory usage in bytes for the demuxer. 134 // Returns the memory usage in bytes for the demuxer.
134 virtual int64_t GetMemoryUsage() const = 0; 135 virtual int64_t GetMemoryUsage() const = 0;
135 136
137 // Notifies the demuxer that a track id has been assigned to a media track.
wolenetz 2016/03/30 00:31:32 nit: is this a blink track id? Clarify in comment
138 // If |track| is null the association for this |track_id| is removed.
139 virtual void OnTrackIdAssigned(unsigned track_id,
wolenetz 2016/03/30 00:31:32 Question: would these be better in DemuxerHost?
servolk 2016/03/30 01:13:12 Why in DemuxerHost? I was thinking about moving th
140 const MediaTrack* track) = 0;
141
142 // Finds a DemuxerStream corresponding to the given blink |track_id|. Note
143 // that the input track id is blink track id and not bytestream track id.
144 virtual const DemuxerStream* GetDemuxerStreamByTrackId(
145 unsigned track_id) const = 0;
146
136 private: 147 private:
137 DISALLOW_COPY_AND_ASSIGN(Demuxer); 148 DISALLOW_COPY_AND_ASSIGN(Demuxer);
138 }; 149 };
139 150
140 } // namespace media 151 } // namespace media
141 152
142 #endif // MEDIA_BASE_DEMUXER_H_ 153 #endif // MEDIA_BASE_DEMUXER_H_
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