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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_MPEG_MPEG1_AUDIO_STREAM_PARSER_H_ | 5 #ifndef MEDIA_FORMATS_MPEG_MPEG1_AUDIO_STREAM_PARSER_H_ |
6 #define MEDIA_FORMATS_MPEG_MPEG1_AUDIO_STREAM_PARSER_H_ | 6 #define MEDIA_FORMATS_MPEG_MPEG1_AUDIO_STREAM_PARSER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "media/base/media_export.h" | 9 #include "media/base/media_export.h" |
10 #include "media/formats/mpeg/mpeg_audio_stream_parser_base.h" | 10 #include "media/formats/mpeg/mpeg_audio_stream_parser_base.h" |
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55 // Channel layout. | 55 // Channel layout. |
56 ChannelLayout channel_layout; | 56 ChannelLayout channel_layout; |
57 | 57 |
58 // Number of samples per frame. | 58 // Number of samples per frame. |
59 int sample_count; | 59 int sample_count; |
60 }; | 60 }; |
61 | 61 |
62 // Parses the header starting at |data|. | 62 // Parses the header starting at |data|. |
63 // Assumption: size of array |data| should be at least |kHeaderSize|. | 63 // Assumption: size of array |data| should be at least |kHeaderSize|. |
64 // Returns false if the header is not valid. | 64 // Returns false if the header is not valid. |
65 static bool ParseHeader( | 65 static bool ParseHeader(const scoped_refptr<MediaLog>& media_log, |
66 const LogCB& log_cb, | 66 const uint8* data, |
67 const uint8* data, | 67 Header* header); |
68 Header* header); | |
69 | 68 |
70 MPEG1AudioStreamParser(); | 69 MPEG1AudioStreamParser(); |
71 ~MPEG1AudioStreamParser() override; | 70 ~MPEG1AudioStreamParser() override; |
72 | 71 |
73 private: | 72 private: |
74 // MPEGAudioStreamParserBase overrides. | 73 // MPEGAudioStreamParserBase overrides. |
75 int ParseFrameHeader(const uint8* data, | 74 int ParseFrameHeader(const uint8* data, |
76 int size, | 75 int size, |
77 int* frame_size, | 76 int* frame_size, |
78 int* sample_rate, | 77 int* sample_rate, |
79 ChannelLayout* channel_layout, | 78 ChannelLayout* channel_layout, |
80 int* sample_count, | 79 int* sample_count, |
81 bool* metadata_frame) const override; | 80 bool* metadata_frame) const override; |
82 | 81 |
83 DISALLOW_COPY_AND_ASSIGN(MPEG1AudioStreamParser); | 82 DISALLOW_COPY_AND_ASSIGN(MPEG1AudioStreamParser); |
84 }; | 83 }; |
85 | 84 |
86 } // namespace media | 85 } // namespace media |
87 | 86 |
88 #endif // MEDIA_FORMATS_MPEG_MPEG1_AUDIO_STREAM_PARSER_H_ | 87 #endif // MEDIA_FORMATS_MPEG_MPEG1_AUDIO_STREAM_PARSER_H_ |
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