| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_FORMATS_WEBM_WEBM_CRYPTO_HELPERS_H_ |
| #define MEDIA_FORMATS_WEBM_WEBM_CRYPTO_HELPERS_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "media/base/decoder_buffer.h" |
| #include "media/base/media_export.h" |
| |
| namespace media { |
| |
| // Fills |decrypt_config|, which can be sent to the Decryptor if the stream |
| // has potentially encrypted frames. Also sets |data_offset| which indicates |
| // where the encrypted data starts. If the frame is unencrypted |
| // |*decrypt_config| will be null. Returns true if |data| is valid, false |
| // otherwise, in which case |decrypt_config| and |data_offset| will not be |
| // changed. Current encrypted WebM request for comments specification is here |
| // http://wiki.webmproject.org/encryption/webm-encryption-rfc |
| bool MEDIA_EXPORT |
| WebMCreateDecryptConfig(const uint8_t* data, |
| int data_size, |
| const uint8_t* key_id, |
| int key_id_size, |
| std::unique_ptr<DecryptConfig>* decrypt_config, |
| int* data_offset); |
| |
| } // namespace media |
| |
| #endif // MEDIA_FORMATS_WEBM_WEBM_CRYPTO_HELPERS_H_ |
