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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_VIDEO_DECODER_H_ | 5 #ifndef MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_ |
6 #define MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_ | 6 #define MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/memory/weak_ptr.h" | 9 #include "base/memory/weak_ptr.h" |
10 #include "media/base/decryptor.h" | 10 #include "media/base/decryptor.h" |
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27 class MEDIA_EXPORT DecryptingVideoDecoder : public VideoDecoder { | 27 class MEDIA_EXPORT DecryptingVideoDecoder : public VideoDecoder { |
28 public: | 28 public: |
29 DecryptingVideoDecoder( | 29 DecryptingVideoDecoder( |
30 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, | 30 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, |
31 const SetDecryptorReadyCB& set_decryptor_ready_cb); | 31 const SetDecryptorReadyCB& set_decryptor_ready_cb); |
32 virtual ~DecryptingVideoDecoder(); | 32 virtual ~DecryptingVideoDecoder(); |
33 | 33 |
34 // VideoDecoder implementation. | 34 // VideoDecoder implementation. |
35 virtual void Initialize(const VideoDecoderConfig& config, | 35 virtual void Initialize(const VideoDecoderConfig& config, |
36 bool live_mode, | 36 bool live_mode, |
37 const PipelineStatusCB& status_cb, | 37 const PipelineStatusCB& status_cb) OVERRIDE; |
38 const OutputCB& output_cb) OVERRIDE; | |
39 virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, | 38 virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, |
40 const DecodeCB& decode_cb) OVERRIDE; | 39 const DecodeCB& decode_cb) OVERRIDE; |
41 virtual void Reset(const base::Closure& closure) OVERRIDE; | 40 virtual void Reset(const base::Closure& closure) OVERRIDE; |
42 virtual void Stop() OVERRIDE; | 41 virtual void Stop() OVERRIDE; |
43 | 42 |
44 private: | 43 private: |
45 // For a detailed state diagram please see this link: http://goo.gl/8jAok | 44 // For a detailed state diagram please see this link: http://goo.gl/8jAok |
46 // TODO(xhwang): Add a ASCII state diagram in this file after this class | 45 // TODO(xhwang): Add a ASCII state diagram in this file after this class |
47 // stabilizes. | 46 // stabilizes. |
48 enum State { | 47 enum State { |
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78 void DoReset(); | 77 void DoReset(); |
79 | 78 |
80 // Free decoder resources and call |stop_cb_|. | 79 // Free decoder resources and call |stop_cb_|. |
81 void DoStop(); | 80 void DoStop(); |
82 | 81 |
83 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 82 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
84 | 83 |
85 State state_; | 84 State state_; |
86 | 85 |
87 PipelineStatusCB init_cb_; | 86 PipelineStatusCB init_cb_; |
88 OutputCB output_cb_; | |
89 DecodeCB decode_cb_; | 87 DecodeCB decode_cb_; |
90 base::Closure reset_cb_; | 88 base::Closure reset_cb_; |
91 | 89 |
92 VideoDecoderConfig config_; | 90 VideoDecoderConfig config_; |
93 | 91 |
94 // Callback to request/cancel decryptor creation notification. | 92 // Callback to request/cancel decryptor creation notification. |
95 SetDecryptorReadyCB set_decryptor_ready_cb_; | 93 SetDecryptorReadyCB set_decryptor_ready_cb_; |
96 | 94 |
97 Decryptor* decryptor_; | 95 Decryptor* decryptor_; |
98 | 96 |
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113 // NOTE: Weak pointers must be invalidated before all other member variables. | 111 // NOTE: Weak pointers must be invalidated before all other member variables. |
114 base::WeakPtrFactory<DecryptingVideoDecoder> weak_factory_; | 112 base::WeakPtrFactory<DecryptingVideoDecoder> weak_factory_; |
115 base::WeakPtr<DecryptingVideoDecoder> weak_this_; | 113 base::WeakPtr<DecryptingVideoDecoder> weak_this_; |
116 | 114 |
117 DISALLOW_COPY_AND_ASSIGN(DecryptingVideoDecoder); | 115 DISALLOW_COPY_AND_ASSIGN(DecryptingVideoDecoder); |
118 }; | 116 }; |
119 | 117 |
120 } // namespace media | 118 } // namespace media |
121 | 119 |
122 #endif // MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_ | 120 #endif // MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_ |
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