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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_FILTERS_DECRYPTING_DEMUXER_STREAM_H_ | 5 #ifndef MEDIA_FILTERS_DECRYPTING_DEMUXER_STREAM_H_ |
6 #define MEDIA_FILTERS_DECRYPTING_DEMUXER_STREAM_H_ | 6 #define MEDIA_FILTERS_DECRYPTING_DEMUXER_STREAM_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/macros.h" | 9 #include "base/macros.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
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26 class MediaLog; | 26 class MediaLog; |
27 | 27 |
28 // Decryptor-based DemuxerStream implementation that converts a potentially | 28 // Decryptor-based DemuxerStream implementation that converts a potentially |
29 // encrypted demuxer stream to a clear demuxer stream. | 29 // encrypted demuxer stream to a clear demuxer stream. |
30 // All public APIs and callbacks are trampolined to the |task_runner_| so | 30 // All public APIs and callbacks are trampolined to the |task_runner_| so |
31 // that no locks are required for thread safety. | 31 // that no locks are required for thread safety. |
32 class MEDIA_EXPORT DecryptingDemuxerStream : public DemuxerStream { | 32 class MEDIA_EXPORT DecryptingDemuxerStream : public DemuxerStream { |
33 public: | 33 public: |
34 DecryptingDemuxerStream( | 34 DecryptingDemuxerStream( |
35 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, | 35 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, |
36 const scoped_refptr<MediaLog>& media_log, | 36 MediaLog* media_log, |
37 const base::Closure& waiting_for_decryption_key_cb); | 37 const base::Closure& waiting_for_decryption_key_cb); |
38 | 38 |
39 // Cancels all pending operations immediately and fires all pending callbacks. | 39 // Cancels all pending operations immediately and fires all pending callbacks. |
40 ~DecryptingDemuxerStream() override; | 40 ~DecryptingDemuxerStream() override; |
41 | 41 |
42 // |steram| must be encrypted and |cdm_context| must be non-null. | 42 // |steram| must be encrypted and |cdm_context| must be non-null. |
43 void Initialize(DemuxerStream* stream, | 43 void Initialize(DemuxerStream* stream, |
44 CdmContext* cdm_context, | 44 CdmContext* cdm_context, |
45 const PipelineStatusCB& status_cb); | 45 const PipelineStatusCB& status_cb); |
46 | 46 |
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95 | 95 |
96 // Returns Decryptor::StreamType converted from |stream_type_|. | 96 // Returns Decryptor::StreamType converted from |stream_type_|. |
97 Decryptor::StreamType GetDecryptorStreamType() const; | 97 Decryptor::StreamType GetDecryptorStreamType() const; |
98 | 98 |
99 // Creates and initializes either |audio_config_| or |video_config_| based on | 99 // Creates and initializes either |audio_config_| or |video_config_| based on |
100 // |demuxer_stream_|. | 100 // |demuxer_stream_|. |
101 void InitializeDecoderConfig(); | 101 void InitializeDecoderConfig(); |
102 | 102 |
103 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 103 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
104 | 104 |
105 scoped_refptr<MediaLog> media_log_; | 105 MediaLog* media_log_; |
106 | 106 |
107 State state_; | 107 State state_; |
108 | 108 |
109 PipelineStatusCB init_cb_; | 109 PipelineStatusCB init_cb_; |
110 ReadCB read_cb_; | 110 ReadCB read_cb_; |
111 base::Closure reset_cb_; | 111 base::Closure reset_cb_; |
112 base::Closure waiting_for_decryption_key_cb_; | 112 base::Closure waiting_for_decryption_key_cb_; |
113 | 113 |
114 // Pointer to the input demuxer stream that will feed us encrypted buffers. | 114 // Pointer to the input demuxer stream that will feed us encrypted buffers. |
115 DemuxerStream* demuxer_stream_; | 115 DemuxerStream* demuxer_stream_; |
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130 | 130 |
131 base::WeakPtr<DecryptingDemuxerStream> weak_this_; | 131 base::WeakPtr<DecryptingDemuxerStream> weak_this_; |
132 base::WeakPtrFactory<DecryptingDemuxerStream> weak_factory_; | 132 base::WeakPtrFactory<DecryptingDemuxerStream> weak_factory_; |
133 | 133 |
134 DISALLOW_COPY_AND_ASSIGN(DecryptingDemuxerStream); | 134 DISALLOW_COPY_AND_ASSIGN(DecryptingDemuxerStream); |
135 }; | 135 }; |
136 | 136 |
137 } // namespace media | 137 } // namespace media |
138 | 138 |
139 #endif // MEDIA_FILTERS_DECRYPTING_DEMUXER_STREAM_H_ | 139 #endif // MEDIA_FILTERS_DECRYPTING_DEMUXER_STREAM_H_ |
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