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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_FILTERS_AUDIO_FILE_READER_H_ | 5 #ifndef MEDIA_FILTERS_AUDIO_FILE_READER_H_ |
| 6 #define MEDIA_FILTERS_AUDIO_FILE_READER_H_ | 6 #define MEDIA_FILTERS_AUDIO_FILE_READER_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 #include "media/filters/ffmpeg_glue.h" | 9 #include "media/filters/ffmpeg_glue.h" |
| 10 | 10 |
| 11 struct AVCodec; | 11 struct AVCodec; |
| 12 struct AVCodecContext; | 12 struct AVCodecContext; |
| 13 struct AVFormatContext; | 13 struct AVFormatContext; |
| 14 | 14 |
| 15 namespace base { class TimeDelta; } | 15 namespace base { class TimeDelta; } |
| 16 | 16 |
| 17 namespace media { | 17 namespace media { |
| 18 | 18 |
| 19 class FFmpegURLProtocol; | 19 class FFmpegURLProtocol; |
| 20 | 20 |
| 21 class MEDIA_EXPORT AudioFileReader { | 21 class AudioFileReader { |
| 22 public: | 22 public: |
| 23 // Audio file data will be read using the given protocol. | 23 // Audio file data will be read using the given protocol. |
| 24 // The AudioFileReader does not take ownership of |protocol| and | 24 // The AudioFileReader does not take ownership of |protocol| and |
| 25 // simply maintains a weak reference to it. | 25 // simply maintains a weak reference to it. |
| 26 explicit AudioFileReader(FFmpegURLProtocol* protocol); | 26 explicit AudioFileReader(FFmpegURLProtocol* protocol); |
| 27 virtual ~AudioFileReader(); | 27 virtual ~AudioFileReader(); |
| 28 | 28 |
| 29 // Open() reads the audio data format so that the sample_rate(), | 29 // Open() reads the audio data format so that the sample_rate(), |
| 30 // channels(), duration(), and number_of_frames() methods can be called. | 30 // channels(), duration(), and number_of_frames() methods can be called. |
| 31 // It returns |true| on success. | 31 // It returns |true| on success. |
| (...skipping 18 matching lines...) Expand all Loading... |
| 50 AVFormatContext* format_context_; | 50 AVFormatContext* format_context_; |
| 51 AVCodecContext* codec_context_; | 51 AVCodecContext* codec_context_; |
| 52 AVCodec* codec_; | 52 AVCodec* codec_; |
| 53 | 53 |
| 54 DISALLOW_COPY_AND_ASSIGN(AudioFileReader); | 54 DISALLOW_COPY_AND_ASSIGN(AudioFileReader); |
| 55 }; | 55 }; |
| 56 | 56 |
| 57 } // namespace media | 57 } // namespace media |
| 58 | 58 |
| 59 #endif // MEDIA_FILTERS_AUDIO_FILE_READER_H_ | 59 #endif // MEDIA_FILTERS_AUDIO_FILE_READER_H_ |
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