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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_FORMATS_MP4_AAC_H_ | 5 #ifndef MEDIA_FORMATS_MP4_AAC_H_ |
6 #define MEDIA_FORMATS_MP4_AAC_H_ | 6 #define MEDIA_FORMATS_MP4_AAC_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <vector> | 10 #include <vector> |
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27 class MEDIA_EXPORT AAC { | 27 class MEDIA_EXPORT AAC { |
28 public: | 28 public: |
29 AAC(); | 29 AAC(); |
30 AAC(const AAC& other); | 30 AAC(const AAC& other); |
31 ~AAC(); | 31 ~AAC(); |
32 | 32 |
33 // Parse the AAC config from the raw binary data embedded in esds box. | 33 // Parse the AAC config from the raw binary data embedded in esds box. |
34 // The function will parse the data and get the ElementaryStreamDescriptor, | 34 // The function will parse the data and get the ElementaryStreamDescriptor, |
35 // then it will parse the ElementaryStreamDescriptor to get audio stream | 35 // then it will parse the ElementaryStreamDescriptor to get audio stream |
36 // configurations. | 36 // configurations. |
37 bool Parse(const std::vector<uint8_t>& data, | 37 bool Parse(const std::vector<uint8_t>& data, MediaLog* media_log); |
38 const scoped_refptr<MediaLog>& media_log); | |
39 | 38 |
40 // Gets the output sample rate for the AAC stream. | 39 // Gets the output sample rate for the AAC stream. |
41 // |sbr_in_mimetype| should be set to true if the SBR mode is | 40 // |sbr_in_mimetype| should be set to true if the SBR mode is |
42 // signalled in the mimetype. (ie mp4a.40.5 in the codecs parameter). | 41 // signalled in the mimetype. (ie mp4a.40.5 in the codecs parameter). |
43 // Returns the samples_per_second value that should used in an | 42 // Returns the samples_per_second value that should used in an |
44 // AudioDecoderConfig. | 43 // AudioDecoderConfig. |
45 int GetOutputSamplesPerSecond(bool sbr_in_mimetype) const; | 44 int GetOutputSamplesPerSecond(bool sbr_in_mimetype) const; |
46 | 45 |
47 // Gets the channel layout for the AAC stream. | 46 // Gets the channel layout for the AAC stream. |
48 // |sbr_in_mimetype| should be set to true if the SBR mode is | 47 // |sbr_in_mimetype| should be set to true if the SBR mode is |
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87 int frequency_; | 86 int frequency_; |
88 int extension_frequency_; | 87 int extension_frequency_; |
89 ChannelLayout channel_layout_; | 88 ChannelLayout channel_layout_; |
90 }; | 89 }; |
91 | 90 |
92 } // namespace mp4 | 91 } // namespace mp4 |
93 | 92 |
94 } // namespace media | 93 } // namespace media |
95 | 94 |
96 #endif // MEDIA_FORMATS_MP4_AAC_H_ | 95 #endif // MEDIA_FORMATS_MP4_AAC_H_ |
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