OLD | NEW |
---|---|
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 WEBKIT_MEDIA_CRYPTO_PPAPI_CONTENT_DECRYPTION_MODULE_H_ | 5 #ifndef WEBKIT_MEDIA_CRYPTO_PPAPI_CONTENT_DECRYPTION_MODULE_H_ |
6 #define WEBKIT_MEDIA_CRYPTO_PPAPI_CONTENT_DECRYPTION_MODULE_H_ | 6 #define WEBKIT_MEDIA_CRYPTO_PPAPI_CONTENT_DECRYPTION_MODULE_H_ |
7 | 7 |
8 #if defined(_MSC_VER) | 8 #if defined(_MSC_VER) |
9 typedef unsigned char uint8_t; | 9 typedef unsigned char uint8_t; |
10 typedef unsigned int uint32_t; | 10 typedef unsigned int uint32_t; |
11 typedef int int32_t; | |
11 typedef __int64 int64_t; | 12 typedef __int64 int64_t; |
12 #else | 13 #else |
13 #include <stdint.h> | 14 #include <stdint.h> |
14 #endif | 15 #endif |
15 | 16 |
17 #include "base/time.h" | |
16 #include "webkit/media/crypto/ppapi/cdm_export.h" | 18 #include "webkit/media/crypto/ppapi/cdm_export.h" |
17 | 19 |
18 namespace cdm { | 20 namespace cdm { |
19 class ContentDecryptionModule; | 21 class ContentDecryptionModule; |
20 } | 22 } |
21 | 23 |
22 extern "C" { | 24 extern "C" { |
23 CDM_EXPORT cdm::ContentDecryptionModule* CreateCdmInstance(); | 25 CDM_EXPORT cdm::ContentDecryptionModule* CreateCdmInstance(); |
24 CDM_EXPORT void DestroyCdmInstance(cdm::ContentDecryptionModule* instance); | 26 CDM_EXPORT void DestroyCdmInstance(cdm::ContentDecryptionModule* instance); |
25 CDM_EXPORT const char* GetCdmVersion(); | 27 CDM_EXPORT const char* GetCdmVersion(); |
(...skipping 96 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
122 : data(NULL), | 124 : data(NULL), |
123 data_size(0), | 125 data_size(0), |
124 timestamp(0) {} | 126 timestamp(0) {} |
125 | 127 |
126 const uint8_t* data; // Pointer to the beginning of the output data. | 128 const uint8_t* data; // Pointer to the beginning of the output data. |
127 uint32_t data_size; // Size (in bytes) of |data|. | 129 uint32_t data_size; // Size (in bytes) of |data|. |
128 | 130 |
129 int64_t timestamp; // Presentation timestamp in microseconds. | 131 int64_t timestamp; // Presentation timestamp in microseconds. |
130 }; | 132 }; |
131 | 133 |
134 struct VideoFrame { | |
135 // Surface formats roughly based on FOURCC labels, see: | |
136 // http://www.fourcc.org/rgb.php | |
137 // http://www.fourcc.org/yuv.php | |
138 enum ColorFormat { | |
139 // Values are skipped in here to keep them synchronized with | |
ddorwin
2012/09/02 21:39:08
Is there a reason these need to be synchronized? A
| |
140 // media::VideoFrame::Format. | |
141 kFormatInvalid = 0, // Invalid format value. Used for error reporting. | |
142 kFormatYv12 = 2, // 12bpp YVU planar 1x1 Y, 2x2 VU samples. | |
143 kFormatEmpty = 4, // An empty frame. | |
144 kFormatI420 = 5, // 12bpp YVU planar 1x1 Y, 2x2 UV samples. | |
145 }; | |
146 | |
147 struct Size { | |
148 Size() : width(0), height(0) {} | |
149 Size(int32_t width, int32_t height) : width(width), height(height) {} | |
150 | |
151 int32_t width; | |
152 int32_t height; | |
153 }; | |
154 | |
155 const static int32_t kMaxPlanes = 3; | |
156 | |
157 VideoFrame() : format(kFormatInvalid) { | |
158 for (int i = 0; i < kMaxPlanes; ++i) { | |
159 strides[i] = 0; | |
160 data[i] = NULL; | |
161 } | |
162 } | |
163 | |
164 ColorFormat format; | |
165 | |
166 // Width and height of the video frame. | |
167 Size frame_size; | |
168 | |
169 // Array of strides for each plane, typically greater or equal to the width | |
170 // of the surface divided by the horizontal sampling period. Note that | |
171 // strides can be negative. | |
172 int32_t strides[kMaxPlanes]; | |
173 | |
174 // Array of data pointers to each plane. | |
175 uint8_t* data[kMaxPlanes]; | |
176 | |
177 base::TimeDelta timestamp; // Presentation timestamp in microseconds. | |
178 }; | |
179 | |
180 struct VideoDecoderConfig { | |
181 enum VideoCodec { | |
182 kCodecUnknown = 0, | |
183 kCodecH264, | |
184 kCodecVp8 = 6 // matches value from media::VideoCodec. | |
185 }; | |
186 | |
187 enum VideoCodecProfile { | |
188 VIDEO_CODEC_PROFILE_UNKNOWN = -1, | |
189 H264PROFILE_MIN = 0, | |
190 H264PROFILE_BASELINE = H264PROFILE_MIN, | |
191 H264PROFILE_MAIN = 1, | |
192 H264PROFILE_EXTENDED = 2, | |
193 H264PROFILE_HIGH = 3, | |
194 H264PROFILE_HIGH10PROFILE = 4, | |
195 H264PROFILE_HIGH422PROFILE = 5, | |
196 H264PROFILE_HIGH444PREDICTIVEPROFILE = 6, | |
197 H264PROFILE_SCALABLEBASELINE = 7, | |
198 H264PROFILE_SCALABLEHIGH = 8, | |
199 H264PROFILE_STEREOHIGH = 9, | |
200 H264PROFILE_MULTIVIEWHIGH = 10, | |
201 H264PROFILE_MAX = H264PROFILE_MULTIVIEWHIGH, | |
202 VP8PROFILE_MIN = 11, | |
203 VP8PROFILE_MAIN = VP8PROFILE_MIN, | |
204 VP8PROFILE_MAX = VP8PROFILE_MAIN, | |
205 VIDEO_CODEC_PROFILE_MAX = VP8PROFILE_MAX | |
206 }; | |
207 | |
208 VideoCodec codec; | |
209 VideoCodecProfile profile; | |
210 VideoFrame::ColorFormat format; | |
ddorwin
2012/09/02 21:39:08
Odd that we have to use the other class's enum. Ma
xhwang
2012/09/04 14:50:21
Done in http://codereview.chromium.org/10900007/
| |
211 VideoFrame::Size frame_size; | |
212 uint8_t* extra_data; | |
213 int32_t extra_data_size; | |
214 | |
215 VideoDecoderConfig() | |
216 : codec(kCodecUnknown), | |
217 profile(VIDEO_CODEC_PROFILE_UNKNOWN), | |
218 format(VideoFrame::kFormatInvalid), | |
219 frame_size(0, 0), | |
220 extra_data(NULL), | |
221 extra_data_size(0) {} | |
222 }; | |
223 | |
132 class ContentDecryptionModule { | 224 class ContentDecryptionModule { |
133 public: | 225 public: |
134 // Generates a |key_request| given the |init_data|. | 226 // Generates a |key_request| given the |init_data|. |
135 // Returns kSuccess if the key request was successfully generated, | 227 // Returns kSuccess if the key request was successfully generated, |
136 // in which case the callee should have allocated memory for the output | 228 // in which case the callee should have allocated memory for the output |
137 // parameters (e.g |session_id| in |key_request|) and passed the ownership | 229 // parameters (e.g |session_id| in |key_request|) and passed the ownership |
138 // to the caller. | 230 // to the caller. |
139 // Returns kErrorUnknown otherwise, in which case the output parameters should | 231 // Returns kErrorUnknown otherwise, in which case the output parameters should |
140 // not be used by the caller. | 232 // not be used by the caller. |
141 // | 233 // |
(...skipping 14 matching lines...) Expand all Loading... | |
156 const uint8_t* key_id, | 248 const uint8_t* key_id, |
157 int key_id_size) = 0; | 249 int key_id_size) = 0; |
158 | 250 |
159 // Cancels any pending key request made to the CDM for |session_id|. | 251 // Cancels any pending key request made to the CDM for |session_id|. |
160 // Returns kSuccess if all pending key requests for |session_id| were | 252 // Returns kSuccess if all pending key requests for |session_id| were |
161 // successfully canceled or there was no key request to be canceled. | 253 // successfully canceled or there was no key request to be canceled. |
162 // Returns kErrorUnknown otherwise. | 254 // Returns kErrorUnknown otherwise. |
163 virtual Status CancelKeyRequest(const char* session_id, | 255 virtual Status CancelKeyRequest(const char* session_id, |
164 int session_id_size) = 0; | 256 int session_id_size) = 0; |
165 | 257 |
258 // Initializes the CDM video decoder with |video_decoder_config|. This | |
259 // function must be called before DecryptAndDecode is called. | |
260 // Returns kSuccess if the |video_decoder_config| is supported and the CDM | |
261 // video decoder is successfully initialized. | |
262 // Returns kErrorUnknown otherwise. | |
263 virtual Status InitializeVideoDecoder( | |
264 const VideoDecoderConfig& video_decoder_config) = 0; | |
265 | |
266 // Flushes decoded video buffers stored by the CDM video decoder. This | |
267 // function should be called after seeking to ensure that frames decoded | |
268 // before seeking are not displayed. | |
269 virtual Status FlushVideoDecoder() = 0; | |
ddorwin
2012/09/02 21:39:08
Should we just have one Flush() for all streams? I
xhwang
2012/09/04 14:50:21
From media pipeline, the flush calls come from Vid
| |
270 | |
166 // Decrypts the |encrypted_buffer|. | 271 // Decrypts the |encrypted_buffer|. |
167 // Returns kSuccess if decryption succeeded, in which case the callee | 272 // Returns kSuccess if decryption succeeded, in which case the callee |
168 // should have filled the |decrypted_buffer| and passed the ownership of | 273 // should have filled the |decrypted_buffer| and passed the ownership of |
169 // |data| in |decrypted_buffer| to the caller. | 274 // |data| in |decrypted_buffer| to the caller. |
170 // Returns kErrorNoKey if the CDM did not have the necessary decryption key | 275 // Returns kErrorNoKey if the CDM did not have the necessary decryption key |
171 // to decrypt. | 276 // to decrypt. |
172 // Returns kErrorUnknown if any other error happened. | 277 // Returns kErrorUnknown if any other error happened. |
173 // In these two cases, |decrypted_buffer| should not be used by the caller. | 278 // In these two cases, |decrypted_buffer| should not be used by the caller. |
174 // | 279 // |
175 // TODO(xhwang): It's not safe to pass the ownership of the dynamically | 280 // TODO(xhwang): It's not safe to pass the ownership of the dynamically |
176 // allocated memory over library boundaries. Fix it after related PPAPI change | 281 // allocated memory over library boundaries. Fix it after related PPAPI change |
177 // and sample CDM are landed. | 282 // and sample CDM are landed. |
178 virtual Status Decrypt(const InputBuffer& encrypted_buffer, | 283 virtual Status Decrypt(const InputBuffer& encrypted_buffer, |
179 OutputBuffer* decrypted_buffer) = 0; | 284 OutputBuffer* decrypted_buffer) = 0; |
180 | 285 |
286 // Decrypts the |encrypted_buffer| and decodes the decrypted buffer into a | |
287 // |video_frame|. Upon end-of-stream, the caller should call this function | |
288 // repeatedly with empty |encrypted_buffer| (where |data| is NULL) until | |
289 // only empty (|format| being EMPTY) |video_frame| can be produced. | |
290 // Returns kSuccess if decryption and decoding both succeeded, in which case | |
291 // the callee should have filled the |video_frame| and passed the ownership of | |
292 // |data| in |video_frame| to the caller. | |
293 // Returns kErrorNoKey if the CDM did not have the necessary decryption key | |
294 // to decrypt. | |
295 // Returns kErrorUnknown if any other (decryption or decoding) error happened. | |
296 // In these two cases, |video_frame| should not be used by the caller. | |
297 // | |
298 // TODO(xhwang): It's not safe to pass the ownership of the dynamically | |
299 // allocated memory over library boundaries. Fix it after related PPAPI change | |
300 // and sample CDM are landed. | |
301 virtual Status DecryptAndDecode(const InputBuffer& encrypted_buffer, | |
302 VideoFrame* video_frame) = 0; | |
303 | |
181 virtual ~ContentDecryptionModule() {} | 304 virtual ~ContentDecryptionModule() {} |
182 }; | 305 }; |
183 | 306 |
184 } // namespace cdm | 307 } // namespace cdm |
185 | 308 |
186 #endif // WEBKIT_MEDIA_CRYPTO_PPAPI_CONTENT_DECRYPTION_MODULE_H_ | 309 #endif // WEBKIT_MEDIA_CRYPTO_PPAPI_CONTENT_DECRYPTION_MODULE_H_ |
OLD | NEW |