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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 #ifndef MEDIA_BASE_AUDIO_DECODER_CONFIG_H_ | 5 #ifndef MEDIA_BASE_AUDIO_DECODER_CONFIG_H_ |
6 #define MEDIA_BASE_AUDIO_DECODER_CONFIG_H_ | 6 #define MEDIA_BASE_AUDIO_DECODER_CONFIG_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
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81 // Note that in a potentially encrypted audio stream, individual buffers | 81 // Note that in a potentially encrypted audio stream, individual buffers |
82 // can be encrypted or not encrypted. | 82 // can be encrypted or not encrypted. |
83 bool is_encrypted() const { return encryption_scheme_.is_encrypted(); } | 83 bool is_encrypted() const { return encryption_scheme_.is_encrypted(); } |
84 | 84 |
85 // Encryption scheme used for encrypted buffers. | 85 // Encryption scheme used for encrypted buffers. |
86 const EncryptionScheme& encryption_scheme() const { | 86 const EncryptionScheme& encryption_scheme() const { |
87 return encryption_scheme_; | 87 return encryption_scheme_; |
88 } | 88 } |
89 | 89 |
90 // Sets the config to be encrypted or not encrypted manually. This can be | 90 // Sets the config to be encrypted or not encrypted manually. This can be |
91 // useful for decryptors that decrypts an encrypted stream to a clear stream, | 91 // useful for decryptors that decrypts an encrypted stream to a clear stream. |
92 // or for decoder selectors that wants to select decrypting decoders instead | |
93 // of clear decoders. | |
94 void SetIsEncrypted(bool is_encrypted); | 92 void SetIsEncrypted(bool is_encrypted); |
95 | 93 |
96 private: | 94 private: |
97 AudioCodec codec_; | 95 AudioCodec codec_; |
98 SampleFormat sample_format_; | 96 SampleFormat sample_format_; |
99 int bytes_per_channel_; | 97 int bytes_per_channel_; |
100 ChannelLayout channel_layout_; | 98 ChannelLayout channel_layout_; |
101 int samples_per_second_; | 99 int samples_per_second_; |
102 int bytes_per_frame_; | 100 int bytes_per_frame_; |
103 std::vector<uint8_t> extra_data_; | 101 std::vector<uint8_t> extra_data_; |
104 EncryptionScheme encryption_scheme_; | 102 EncryptionScheme encryption_scheme_; |
105 | 103 |
106 // |seek_preroll_| is the duration of the data that the decoder must decode | 104 // |seek_preroll_| is the duration of the data that the decoder must decode |
107 // before the decoded data is valid. | 105 // before the decoded data is valid. |
108 base::TimeDelta seek_preroll_; | 106 base::TimeDelta seek_preroll_; |
109 | 107 |
110 // |codec_delay_| is the number of frames the decoder should discard before | 108 // |codec_delay_| is the number of frames the decoder should discard before |
111 // returning decoded data. This value can include both decoder delay as well | 109 // returning decoded data. This value can include both decoder delay as well |
112 // as padding added during encoding. | 110 // as padding added during encoding. |
113 int codec_delay_; | 111 int codec_delay_; |
114 | 112 |
115 // Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler | 113 // Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler |
116 // generated copy constructor and assignment operator. Since the extra data is | 114 // generated copy constructor and assignment operator. Since the extra data is |
117 // typically small, the performance impact is minimal. | 115 // typically small, the performance impact is minimal. |
118 }; | 116 }; |
119 | 117 |
120 } // namespace media | 118 } // namespace media |
121 | 119 |
122 #endif // MEDIA_BASE_AUDIO_DECODER_CONFIG_H_ | 120 #endif // MEDIA_BASE_AUDIO_DECODER_CONFIG_H_ |
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