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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_CDM_CDM_ADAPTER_H_ | 5 #ifndef MEDIA_CDM_CDM_ADAPTER_H_ |
6 #define MEDIA_CDM_CDM_ADAPTER_H_ | 6 #define MEDIA_CDM_CDM_ADAPTER_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <memory> | |
10 #include <string> | 11 #include <string> |
11 #include <vector> | 12 #include <vector> |
12 | 13 |
14 #include "base/callback.h" | |
13 #include "base/compiler_specific.h" | 15 #include "base/compiler_specific.h" |
14 #include "base/files/file_path.h" | 16 #include "base/files/file_path.h" |
15 #include "base/macros.h" | 17 #include "base/macros.h" |
16 #include "base/memory/ref_counted.h" | 18 #include "base/memory/ref_counted.h" |
17 #include "base/memory/scoped_ptr.h" | 19 #include "base/memory/scoped_ptr.h" |
18 #include "base/memory/weak_ptr.h" | 20 #include "base/memory/weak_ptr.h" |
19 #include "base/scoped_native_library.h" | 21 #include "base/scoped_native_library.h" |
20 #include "base/threading/thread.h" | 22 #include "base/threading/thread.h" |
21 #include "media/base/cdm_config.h" | 23 #include "media/base/cdm_config.h" |
22 #include "media/base/cdm_context.h" | 24 #include "media/base/cdm_context.h" |
23 #include "media/base/cdm_factory.h" | 25 #include "media/base/cdm_factory.h" |
24 #include "media/base/cdm_promise_adapter.h" | 26 #include "media/base/cdm_promise_adapter.h" |
25 #include "media/base/decryptor.h" | 27 #include "media/base/decryptor.h" |
26 #include "media/base/media_export.h" | 28 #include "media/base/media_export.h" |
27 #include "media/base/media_keys.h" | 29 #include "media/base/media_keys.h" |
28 #include "media/cdm/api/content_decryption_module.h" | 30 #include "media/cdm/api/content_decryption_module.h" |
29 #include "ui/gfx/geometry/size.h" | 31 #include "ui/gfx/geometry/size.h" |
30 | 32 |
31 namespace media { | 33 namespace media { |
32 | 34 |
33 class AudioFramesImpl; | 35 class AudioFramesImpl; |
34 class CdmAllocator; | 36 class CdmAllocator; |
37 class CdmFileIO; | |
35 class CdmWrapper; | 38 class CdmWrapper; |
36 | 39 |
40 // Called when the CDM needs a FileIO object from the host to do file IO | |
41 // operations. Returns NULL if a FileIO object cannot be obtained. Once a | |
42 // valid FileIO object is returned, |client| must be valid until | |
43 // FileIO::Close() is called. The CDM can call this method multiple times | |
44 // to operate on different files. | |
45 using CdmFileIOProviderCB = | |
xhwang
2016/04/18 21:09:22
The naming is a bit odd since the callback does cr
jrummell
2016/04/19 23:59:29
Done.
| |
46 base::Callback<std::unique_ptr<CdmFileIO>(cdm::FileIOClient* client)>; | |
47 | |
37 class MEDIA_EXPORT CdmAdapter : public MediaKeys, | 48 class MEDIA_EXPORT CdmAdapter : public MediaKeys, |
38 public CdmContext, | 49 public CdmContext, |
39 public Decryptor, | 50 public Decryptor, |
40 NON_EXPORTED_BASE(public cdm::Host_7), | 51 NON_EXPORTED_BASE(public cdm::Host_7), |
41 NON_EXPORTED_BASE(public cdm::Host_8) { | 52 NON_EXPORTED_BASE(public cdm::Host_8) { |
42 public: | 53 public: |
43 // Create the CDM using |cdm_path| and initialize it using |key_system| and | 54 // Create the CDM using |cdm_path| and initialize it using |key_system| and |
44 // |cdm_config|. |allocator| is to be used whenever the CDM needs memory | 55 // |cdm_config|. |allocator| is to be used whenever the CDM needs memory |
45 // and to create VideoFrames. Callbacks will be used for events generated | 56 // and to create VideoFrames. |file_io_provider| is to be used whenever the |
46 // by the CDM. |cdm_created_cb| will be called when the CDM is loaded and | 57 // CDM needs access to the file system. Callbacks will be used for events |
47 // initialized. | 58 // generated by the CDM. |cdm_created_cb| will be called when the CDM is |
59 // loaded and initialized. | |
48 static void Create( | 60 static void Create( |
49 const std::string& key_system, | 61 const std::string& key_system, |
50 const base::FilePath& cdm_path, | 62 const base::FilePath& cdm_path, |
51 const CdmConfig& cdm_config, | 63 const CdmConfig& cdm_config, |
52 scoped_ptr<CdmAllocator> allocator, | 64 scoped_ptr<CdmAllocator> allocator, |
65 const CdmFileIOProviderCB& file_io_provider_cb, | |
53 const SessionMessageCB& session_message_cb, | 66 const SessionMessageCB& session_message_cb, |
54 const SessionClosedCB& session_closed_cb, | 67 const SessionClosedCB& session_closed_cb, |
55 const LegacySessionErrorCB& legacy_session_error_cb, | 68 const LegacySessionErrorCB& legacy_session_error_cb, |
56 const SessionKeysChangeCB& session_keys_change_cb, | 69 const SessionKeysChangeCB& session_keys_change_cb, |
57 const SessionExpirationUpdateCB& session_expiration_update_cb, | 70 const SessionExpirationUpdateCB& session_expiration_update_cb, |
58 const CdmCreatedCB& cdm_created_cb); | 71 const CdmCreatedCB& cdm_created_cb); |
59 | 72 |
60 // MediaKeys implementation. | 73 // MediaKeys implementation. |
61 void SetServerCertificate(const std::vector<uint8_t>& certificate, | 74 void SetServerCertificate(const std::vector<uint8_t>& certificate, |
62 scoped_ptr<SimpleCdmPromise> promise) final; | 75 scoped_ptr<SimpleCdmPromise> promise) final; |
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142 void EnableOutputProtection(uint32_t desired_protection_mask) override; | 155 void EnableOutputProtection(uint32_t desired_protection_mask) override; |
143 void QueryOutputProtectionStatus() override; | 156 void QueryOutputProtectionStatus() override; |
144 void OnDeferredInitializationDone(cdm::StreamType stream_type, | 157 void OnDeferredInitializationDone(cdm::StreamType stream_type, |
145 cdm::Status decoder_status) override; | 158 cdm::Status decoder_status) override; |
146 cdm::FileIO* CreateFileIO(cdm::FileIOClient* client) override; | 159 cdm::FileIO* CreateFileIO(cdm::FileIOClient* client) override; |
147 | 160 |
148 private: | 161 private: |
149 CdmAdapter(const std::string& key_system, | 162 CdmAdapter(const std::string& key_system, |
150 const CdmConfig& cdm_config, | 163 const CdmConfig& cdm_config, |
151 scoped_ptr<CdmAllocator> allocator, | 164 scoped_ptr<CdmAllocator> allocator, |
165 const CdmFileIOProviderCB& file_io_provider_cb, | |
152 const SessionMessageCB& session_message_cb, | 166 const SessionMessageCB& session_message_cb, |
153 const SessionClosedCB& session_closed_cb, | 167 const SessionClosedCB& session_closed_cb, |
154 const LegacySessionErrorCB& legacy_session_error_cb, | 168 const LegacySessionErrorCB& legacy_session_error_cb, |
155 const SessionKeysChangeCB& session_keys_change_cb, | 169 const SessionKeysChangeCB& session_keys_change_cb, |
156 const SessionExpirationUpdateCB& session_expiration_update_cb); | 170 const SessionExpirationUpdateCB& session_expiration_update_cb); |
157 ~CdmAdapter() final; | 171 ~CdmAdapter() final; |
158 | 172 |
159 // Load the CDM using |cdm_path| and initialize it. |promise| is resolved if | 173 // Load the CDM using |cdm_path| and initialize it. |promise| is resolved if |
160 // the CDM is successfully loaded and initialized, rejected otherwise. | 174 // the CDM is successfully loaded and initialized, rejected otherwise. |
161 void Initialize(const base::FilePath& cdm_path, | 175 void Initialize(const base::FilePath& cdm_path, |
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203 | 217 |
204 // Keep track of video frame natural size from the latest configuration | 218 // Keep track of video frame natural size from the latest configuration |
205 // as the CDM doesn't provide it. | 219 // as the CDM doesn't provide it. |
206 gfx::Size natural_size_; | 220 gfx::Size natural_size_; |
207 | 221 |
208 // Keep track of audio parameters. | 222 // Keep track of audio parameters. |
209 int audio_samples_per_second_; | 223 int audio_samples_per_second_; |
210 ChannelLayout audio_channel_layout_; | 224 ChannelLayout audio_channel_layout_; |
211 | 225 |
212 scoped_ptr<CdmAllocator> allocator_; | 226 scoped_ptr<CdmAllocator> allocator_; |
227 CdmFileIOProviderCB file_io_provider_cb_; | |
213 | 228 |
214 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 229 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
215 | 230 |
216 // NOTE: Weak pointers must be invalidated before all other member variables. | 231 // NOTE: Weak pointers must be invalidated before all other member variables. |
217 base::WeakPtrFactory<CdmAdapter> weak_factory_; | 232 base::WeakPtrFactory<CdmAdapter> weak_factory_; |
218 | 233 |
219 DISALLOW_COPY_AND_ASSIGN(CdmAdapter); | 234 DISALLOW_COPY_AND_ASSIGN(CdmAdapter); |
220 }; | 235 }; |
221 | 236 |
222 } // namespace media | 237 } // namespace media |
223 | 238 |
224 #endif // MEDIA_CDM_CDM_ADAPTER_H_ | 239 #endif // MEDIA_CDM_CDM_ADAPTER_H_ |
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