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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 #include "media/webm/webm_content_encodings_client.h" | 5 #include "media/webm/webm_content_encodings_client.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/stl_util.h" | 8 #include "base/stl_util.h" |
9 #include "media/webm/webm_constants.h" | 9 #include "media/webm/webm_constants.h" |
10 | 10 |
11 namespace media { | 11 namespace media { |
12 | 12 |
13 WebMContentEncodingsClient::WebMContentEncodingsClient() | 13 WebMContentEncodingsClient::WebMContentEncodingsClient( |
14 : content_encryption_encountered_(false), | 14 const ErrorLogCB& error_cb) |
| 15 : error_cb_(error_cb), |
| 16 content_encryption_encountered_(false), |
15 content_encodings_ready_(false) { | 17 content_encodings_ready_(false) { |
16 } | 18 } |
17 | 19 |
18 WebMContentEncodingsClient::~WebMContentEncodingsClient() { | 20 WebMContentEncodingsClient::~WebMContentEncodingsClient() { |
19 STLDeleteElements(&content_encodings_); | 21 STLDeleteElements(&content_encodings_); |
20 } | 22 } |
21 | 23 |
22 const ContentEncodings& WebMContentEncodingsClient::content_encodings() const { | 24 const ContentEncodings& WebMContentEncodingsClient::content_encodings() const { |
23 DCHECK(content_encodings_ready_); | 25 DCHECK(content_encodings_ready_); |
24 return content_encodings_; | 26 return content_encodings_; |
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36 if (id == kWebMIdContentEncoding) { | 38 if (id == kWebMIdContentEncoding) { |
37 DCHECK(!cur_content_encoding_.get()); | 39 DCHECK(!cur_content_encoding_.get()); |
38 DCHECK(!content_encryption_encountered_); | 40 DCHECK(!content_encryption_encountered_); |
39 cur_content_encoding_.reset(new ContentEncoding()); | 41 cur_content_encoding_.reset(new ContentEncoding()); |
40 return this; | 42 return this; |
41 } | 43 } |
42 | 44 |
43 if (id == kWebMIdContentEncryption) { | 45 if (id == kWebMIdContentEncryption) { |
44 DCHECK(cur_content_encoding_.get()); | 46 DCHECK(cur_content_encoding_.get()); |
45 if (content_encryption_encountered_) { | 47 if (content_encryption_encountered_) { |
46 DVLOG(1) << "Unexpected multiple ContentEncryption."; | 48 ERROR_LOG(error_cb_) << "Unexpected multiple ContentEncryption."; |
47 return NULL; | 49 return NULL; |
48 } | 50 } |
49 content_encryption_encountered_ = true; | 51 content_encryption_encountered_ = true; |
50 return this; | 52 return this; |
51 } | 53 } |
52 | 54 |
53 if (id == kWebMIdContentEncAESSettings) { | 55 if (id == kWebMIdContentEncAESSettings) { |
54 DCHECK(cur_content_encoding_.get()); | 56 DCHECK(cur_content_encoding_.get()); |
55 return this; | 57 return this; |
56 } | 58 } |
57 | 59 |
58 // This should not happen if WebMListParser is working properly. | 60 // This should not happen if WebMListParser is working properly. |
59 DCHECK(false); | 61 DCHECK(false); |
60 return NULL; | 62 return NULL; |
61 } | 63 } |
62 | 64 |
63 // Mandatory occurrence restriction is checked in this function. Multiple | 65 // Mandatory occurrence restriction is checked in this function. Multiple |
64 // occurrence restriction is checked in OnUInt and OnBinary. | 66 // occurrence restriction is checked in OnUInt and OnBinary. |
65 bool WebMContentEncodingsClient::OnListEnd(int id) { | 67 bool WebMContentEncodingsClient::OnListEnd(int id) { |
66 if (id == kWebMIdContentEncodings) { | 68 if (id == kWebMIdContentEncodings) { |
67 // ContentEncoding element is mandatory. Check this! | 69 // ContentEncoding element is mandatory. Check this! |
68 if (content_encodings_.empty()) { | 70 if (content_encodings_.empty()) { |
69 DVLOG(1) << "Missing ContentEncoding."; | 71 ERROR_LOG(error_cb_) << "Missing ContentEncoding."; |
70 return false; | 72 return false; |
71 } | 73 } |
72 content_encodings_ready_ = true; | 74 content_encodings_ready_ = true; |
73 return true; | 75 return true; |
74 } | 76 } |
75 | 77 |
76 if (id == kWebMIdContentEncoding) { | 78 if (id == kWebMIdContentEncoding) { |
77 DCHECK(cur_content_encoding_.get()); | 79 DCHECK(cur_content_encoding_.get()); |
78 | 80 |
79 // | 81 // |
80 // Specify default values to missing mandatory elements. | 82 // Specify default values to missing mandatory elements. |
81 // | 83 // |
82 | 84 |
83 if (cur_content_encoding_->order() == ContentEncoding::kOrderInvalid) { | 85 if (cur_content_encoding_->order() == ContentEncoding::kOrderInvalid) { |
84 // Default value of encoding order is 0, which should only be used on the | 86 // Default value of encoding order is 0, which should only be used on the |
85 // first ContentEncoding. | 87 // first ContentEncoding. |
86 if (!content_encodings_.empty()) { | 88 if (!content_encodings_.empty()) { |
87 DVLOG(1) << "Missing ContentEncodingOrder."; | 89 ERROR_LOG(error_cb_) << "Missing ContentEncodingOrder."; |
88 return false; | 90 return false; |
89 } | 91 } |
90 cur_content_encoding_->set_order(0); | 92 cur_content_encoding_->set_order(0); |
91 } | 93 } |
92 | 94 |
93 if (cur_content_encoding_->scope() == ContentEncoding::kScopeInvalid) | 95 if (cur_content_encoding_->scope() == ContentEncoding::kScopeInvalid) |
94 cur_content_encoding_->set_scope(ContentEncoding::kScopeAllFrameContents); | 96 cur_content_encoding_->set_scope(ContentEncoding::kScopeAllFrameContents); |
95 | 97 |
96 if (cur_content_encoding_->type() == ContentEncoding::kTypeInvalid) | 98 if (cur_content_encoding_->type() == ContentEncoding::kTypeInvalid) |
97 cur_content_encoding_->set_type(ContentEncoding::kTypeCompression); | 99 cur_content_encoding_->set_type(ContentEncoding::kTypeCompression); |
98 | 100 |
99 // Check for elements valid in spec but not supported for now. | 101 // Check for elements valid in spec but not supported for now. |
100 if (cur_content_encoding_->type() == ContentEncoding::kTypeCompression) { | 102 if (cur_content_encoding_->type() == ContentEncoding::kTypeCompression) { |
101 DVLOG(1) << "ContentCompression not supported."; | 103 ERROR_LOG(error_cb_) << "ContentCompression not supported."; |
102 return false; | 104 return false; |
103 } | 105 } |
104 | 106 |
105 // Enforce mandatory elements without default values. | 107 // Enforce mandatory elements without default values. |
106 DCHECK(cur_content_encoding_->type() == ContentEncoding::kTypeEncryption); | 108 DCHECK(cur_content_encoding_->type() == ContentEncoding::kTypeEncryption); |
107 if (!content_encryption_encountered_) { | 109 if (!content_encryption_encountered_) { |
108 DVLOG(1) << "ContentEncodingType is encryption but ContentEncryption " | 110 ERROR_LOG(error_cb_) << "ContentEncodingType is encryption but" |
109 "is missing."; | 111 << " ContentEncryption is missing."; |
110 return false; | 112 return false; |
111 } | 113 } |
112 | 114 |
113 content_encodings_.push_back(cur_content_encoding_.release()); | 115 content_encodings_.push_back(cur_content_encoding_.release()); |
114 content_encryption_encountered_ = false; | 116 content_encryption_encountered_ = false; |
115 return true; | 117 return true; |
116 } | 118 } |
117 | 119 |
118 if (id == kWebMIdContentEncryption) { | 120 if (id == kWebMIdContentEncryption) { |
119 DCHECK(cur_content_encoding_.get()); | 121 DCHECK(cur_content_encoding_.get()); |
(...skipping 18 matching lines...) Expand all Loading... |
138 return false; | 140 return false; |
139 } | 141 } |
140 | 142 |
141 // Multiple occurrence restriction and range are checked in this function. | 143 // Multiple occurrence restriction and range are checked in this function. |
142 // Mandatory occurrence restriction is checked in OnListEnd. | 144 // Mandatory occurrence restriction is checked in OnListEnd. |
143 bool WebMContentEncodingsClient::OnUInt(int id, int64 val) { | 145 bool WebMContentEncodingsClient::OnUInt(int id, int64 val) { |
144 DCHECK(cur_content_encoding_.get()); | 146 DCHECK(cur_content_encoding_.get()); |
145 | 147 |
146 if (id == kWebMIdContentEncodingOrder) { | 148 if (id == kWebMIdContentEncodingOrder) { |
147 if (cur_content_encoding_->order() != ContentEncoding::kOrderInvalid) { | 149 if (cur_content_encoding_->order() != ContentEncoding::kOrderInvalid) { |
148 DVLOG(1) << "Unexpected multiple ContentEncodingOrder."; | 150 ERROR_LOG(error_cb_) << "Unexpected multiple ContentEncodingOrder."; |
149 return false; | 151 return false; |
150 } | 152 } |
151 | 153 |
152 if (val != static_cast<int64>(content_encodings_.size())) { | 154 if (val != static_cast<int64>(content_encodings_.size())) { |
153 // According to the spec, encoding order starts with 0 and counts upwards. | 155 // According to the spec, encoding order starts with 0 and counts upwards. |
154 DVLOG(1) << "Unexpected ContentEncodingOrder."; | 156 ERROR_LOG(error_cb_) << "Unexpected ContentEncodingOrder."; |
155 return false; | 157 return false; |
156 } | 158 } |
157 | 159 |
158 cur_content_encoding_->set_order(val); | 160 cur_content_encoding_->set_order(val); |
159 return true; | 161 return true; |
160 } | 162 } |
161 | 163 |
162 if (id == kWebMIdContentEncodingScope) { | 164 if (id == kWebMIdContentEncodingScope) { |
163 if (cur_content_encoding_->scope() != ContentEncoding::kScopeInvalid) { | 165 if (cur_content_encoding_->scope() != ContentEncoding::kScopeInvalid) { |
164 DVLOG(1) << "Unexpected multiple ContentEncodingScope."; | 166 ERROR_LOG(error_cb_) << "Unexpected multiple ContentEncodingScope."; |
165 return false; | 167 return false; |
166 } | 168 } |
167 | 169 |
168 if (val == ContentEncoding::kScopeInvalid || | 170 if (val == ContentEncoding::kScopeInvalid || |
169 val > ContentEncoding::kScopeMax) { | 171 val > ContentEncoding::kScopeMax) { |
170 DVLOG(1) << "Unexpected ContentEncodingScope."; | 172 ERROR_LOG(error_cb_) << "Unexpected ContentEncodingScope."; |
171 return false; | 173 return false; |
172 } | 174 } |
173 | 175 |
174 if (val & ContentEncoding::kScopeNextContentEncodingData) { | 176 if (val & ContentEncoding::kScopeNextContentEncodingData) { |
175 DVLOG(1) << "Encoded next ContentEncoding is not supported."; | 177 ERROR_LOG(error_cb_) << "Encoded next ContentEncoding is not supported."; |
176 return false; | 178 return false; |
177 } | 179 } |
178 | 180 |
179 cur_content_encoding_->set_scope(static_cast<ContentEncoding::Scope>(val)); | 181 cur_content_encoding_->set_scope(static_cast<ContentEncoding::Scope>(val)); |
180 return true; | 182 return true; |
181 } | 183 } |
182 | 184 |
183 if (id == kWebMIdContentEncodingType) { | 185 if (id == kWebMIdContentEncodingType) { |
184 if (cur_content_encoding_->type() != ContentEncoding::kTypeInvalid) { | 186 if (cur_content_encoding_->type() != ContentEncoding::kTypeInvalid) { |
185 DVLOG(1) << "Unexpected multiple ContentEncodingType."; | 187 ERROR_LOG(error_cb_) << "Unexpected multiple ContentEncodingType."; |
186 return false; | 188 return false; |
187 } | 189 } |
188 | 190 |
189 if (val == ContentEncoding::kTypeCompression) { | 191 if (val == ContentEncoding::kTypeCompression) { |
190 DVLOG(1) << "ContentCompression not supported."; | 192 ERROR_LOG(error_cb_) << "ContentCompression not supported."; |
191 return false; | 193 return false; |
192 } | 194 } |
193 | 195 |
194 if (val != ContentEncoding::kTypeEncryption) { | 196 if (val != ContentEncoding::kTypeEncryption) { |
195 DVLOG(1) << "Unexpected ContentEncodingType " << val << "."; | 197 ERROR_LOG(error_cb_) << "Unexpected ContentEncodingType " << val << "."; |
196 return false; | 198 return false; |
197 } | 199 } |
198 | 200 |
199 cur_content_encoding_->set_type(static_cast<ContentEncoding::Type>(val)); | 201 cur_content_encoding_->set_type(static_cast<ContentEncoding::Type>(val)); |
200 return true; | 202 return true; |
201 } | 203 } |
202 | 204 |
203 if (id == kWebMIdContentEncAlgo) { | 205 if (id == kWebMIdContentEncAlgo) { |
204 if (cur_content_encoding_->encryption_algo() != | 206 if (cur_content_encoding_->encryption_algo() != |
205 ContentEncoding::kEncAlgoInvalid) { | 207 ContentEncoding::kEncAlgoInvalid) { |
206 DVLOG(1) << "Unexpected multiple ContentEncAlgo."; | 208 ERROR_LOG(error_cb_) << "Unexpected multiple ContentEncAlgo."; |
207 return false; | 209 return false; |
208 } | 210 } |
209 | 211 |
210 if (val < ContentEncoding::kEncAlgoNotEncrypted || | 212 if (val < ContentEncoding::kEncAlgoNotEncrypted || |
211 val > ContentEncoding::kEncAlgoAes) { | 213 val > ContentEncoding::kEncAlgoAes) { |
212 DVLOG(1) << "Unexpected ContentEncAlgo " << val << "."; | 214 ERROR_LOG(error_cb_) << "Unexpected ContentEncAlgo " << val << "."; |
213 return false; | 215 return false; |
214 } | 216 } |
215 | 217 |
216 cur_content_encoding_->set_encryption_algo( | 218 cur_content_encoding_->set_encryption_algo( |
217 static_cast<ContentEncoding::EncryptionAlgo>(val)); | 219 static_cast<ContentEncoding::EncryptionAlgo>(val)); |
218 return true; | 220 return true; |
219 } | 221 } |
220 | 222 |
221 if (id == kWebMIdAESSettingsCipherMode) { | 223 if (id == kWebMIdAESSettingsCipherMode) { |
222 if (cur_content_encoding_->cipher_mode() != | 224 if (cur_content_encoding_->cipher_mode() != |
223 ContentEncoding::kCipherModeInvalid) { | 225 ContentEncoding::kCipherModeInvalid) { |
224 DVLOG(1) << "Unexpected multiple AESSettingsCipherMode."; | 226 ERROR_LOG(error_cb_) << "Unexpected multiple AESSettingsCipherMode."; |
225 return false; | 227 return false; |
226 } | 228 } |
227 | 229 |
228 if (val != ContentEncoding::kCipherModeCtr) { | 230 if (val != ContentEncoding::kCipherModeCtr) { |
229 DVLOG(1) << "Unexpected AESSettingsCipherMode " << val << "."; | 231 ERROR_LOG(error_cb_) << "Unexpected AESSettingsCipherMode " << val << "."; |
230 return false; | 232 return false; |
231 } | 233 } |
232 | 234 |
233 cur_content_encoding_->set_cipher_mode( | 235 cur_content_encoding_->set_cipher_mode( |
234 static_cast<ContentEncoding::CipherMode>(val)); | 236 static_cast<ContentEncoding::CipherMode>(val)); |
235 return true; | 237 return true; |
236 } | 238 } |
237 | 239 |
238 // This should not happen if WebMListParser is working properly. | 240 // This should not happen if WebMListParser is working properly. |
239 DCHECK(false); | 241 DCHECK(false); |
240 return false; | 242 return false; |
241 } | 243 } |
242 | 244 |
243 // Multiple occurrence restriction is checked in this function. Mandatory | 245 // Multiple occurrence restriction is checked in this function. Mandatory |
244 // restriction is checked in OnListEnd. | 246 // restriction is checked in OnListEnd. |
245 bool WebMContentEncodingsClient::OnBinary(int id, const uint8* data, int size) { | 247 bool WebMContentEncodingsClient::OnBinary(int id, const uint8* data, int size) { |
246 DCHECK(cur_content_encoding_.get()); | 248 DCHECK(cur_content_encoding_.get()); |
247 DCHECK(data); | 249 DCHECK(data); |
248 DCHECK_GT(size, 0); | 250 DCHECK_GT(size, 0); |
249 | 251 |
250 if (id == kWebMIdContentEncKeyID) { | 252 if (id == kWebMIdContentEncKeyID) { |
251 if (!cur_content_encoding_->encryption_key_id().empty()) { | 253 if (!cur_content_encoding_->encryption_key_id().empty()) { |
252 DVLOG(1) << "Unexpected multiple ContentEncKeyID"; | 254 ERROR_LOG(error_cb_) << "Unexpected multiple ContentEncKeyID"; |
253 return false; | 255 return false; |
254 } | 256 } |
255 cur_content_encoding_->SetEncryptionKeyId(data, size); | 257 cur_content_encoding_->SetEncryptionKeyId(data, size); |
256 return true; | 258 return true; |
257 } | 259 } |
258 | 260 |
259 // This should not happen if WebMListParser is working properly. | 261 // This should not happen if WebMListParser is working properly. |
260 DCHECK(false); | 262 DCHECK(false); |
261 return false; | 263 return false; |
262 } | 264 } |
263 | 265 |
264 } // namespace media | 266 } // namespace media |
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