29 lines
1.2 KiB
C
29 lines
1.2 KiB
C
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// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef MEDIA_FORMATS_WEBM_WEBM_CRYPTO_HELPERS_H_
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#define MEDIA_FORMATS_WEBM_WEBM_CRYPTO_HELPERS_H_
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#include "base/basictypes.h"
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#include "base/memory/scoped_ptr.h"
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#include "media/base/decoder_buffer.h"
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namespace media {
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// Fills an initialized DecryptConfig, which can be sent to the Decryptor if
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// the stream has potentially encrypted frames. Also sets |data_offset| which
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// indicates where the encrypted data starts. Leaving the IV empty will tell
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// the decryptor that the frame is unencrypted. Returns true if |data| is valid,
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// false otherwise, in which case |decrypt_config| and |data_offset| will not be
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// changed. Current encrypted WebM request for comments specification is here
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// http://wiki.webmproject.org/encryption/webm-encryption-rfc
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bool WebMCreateDecryptConfig(const uint8* data, int data_size,
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const uint8* key_id, int key_id_size,
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scoped_ptr<DecryptConfig>* decrypt_config,
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int* data_offset);
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} // namespace media
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#endif // MEDIA_FORMATS_WEBM_WEBM_CRYPT_HELPERS_H_
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