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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 // FFmpegGlue is an adapter for FFmpeg's URLProtocol interface that allows us to | 5 // FFmpegGlue is an adapter for FFmpeg's URLProtocol interface that allows us to |
| 6 // use a DataSource implementation with FFmpeg. For convenience we use FFmpeg's | 6 // use a DataSource implementation with FFmpeg. For convenience we use FFmpeg's |
| 7 // av_open_input_file function, which analyzes the filename given to it and | 7 // av_open_input_file function, which analyzes the filename given to it and |
| 8 // automatically initializes the appropriate URLProtocol. | 8 // automatically initializes the appropriate URLProtocol. |
| 9 // | 9 // |
| 10 // Since the DataSource is already open by time we call av_open_input_file, we | 10 // Since the DataSource is already open by time we call av_open_input_file, we |
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| 25 | 25 |
| 26 #ifndef MEDIA_FILTERS_FFMPEG_GLUE_H_ | 26 #ifndef MEDIA_FILTERS_FFMPEG_GLUE_H_ |
| 27 #define MEDIA_FILTERS_FFMPEG_GLUE_H_ | 27 #define MEDIA_FILTERS_FFMPEG_GLUE_H_ |
| 28 | 28 |
| 29 #include <map> | 29 #include <map> |
| 30 #include <string> | 30 #include <string> |
| 31 | 31 |
| 32 #include "base/memory/singleton.h" | 32 #include "base/memory/singleton.h" |
| 33 #include "base/synchronization/lock.h" | 33 #include "base/synchronization/lock.h" |
| 34 | 34 |
| 35 struct URLProtocol; | |
| 36 | |
| 35 namespace media { | 37 namespace media { |
| 36 | 38 |
| 37 class FFmpegURLProtocol { | 39 class FFmpegURLProtocol { |
| 38 public: | 40 public: |
| 39 FFmpegURLProtocol() { | 41 FFmpegURLProtocol() { |
|
scherkus (not reviewing)
2011/08/11 01:26:29
want to clean these up to {}
acolwell GONE FROM CHROMIUM
2011/08/11 23:54:40
Done.
| |
| 40 } | 42 } |
| 41 | 43 |
| 42 virtual ~FFmpegURLProtocol() { | 44 virtual ~FFmpegURLProtocol() { |
| 43 } | 45 } |
| 44 | 46 |
| 45 // Read the given amount of bytes into data, returns the number of bytes read | 47 // Read the given amount of bytes into data, returns the number of bytes read |
| 46 // if successful, kReadError otherwise. | 48 // if successful, kReadError otherwise. |
| 47 virtual int Read(int size, uint8* data) = 0; | 49 virtual int Read(int size, uint8* data) = 0; |
| 48 | 50 |
| 49 // Returns true and the current file position for this file, false if the | 51 // Returns true and the current file position for this file, false if the |
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| 92 // av_open_input_file as the filename. | 94 // av_open_input_file as the filename. |
| 93 std::string GetProtocolKey(FFmpegURLProtocol* protocol); | 95 std::string GetProtocolKey(FFmpegURLProtocol* protocol); |
| 94 | 96 |
| 95 // Mutual exclusion while adding/removing items from the map. | 97 // Mutual exclusion while adding/removing items from the map. |
| 96 base::Lock lock_; | 98 base::Lock lock_; |
| 97 | 99 |
| 98 // Map between keys and FFmpegProtocol references. | 100 // Map between keys and FFmpegProtocol references. |
| 99 typedef std::map<std::string, FFmpegURLProtocol*> ProtocolMap; | 101 typedef std::map<std::string, FFmpegURLProtocol*> ProtocolMap; |
| 100 ProtocolMap protocols_; | 102 ProtocolMap protocols_; |
| 101 | 103 |
| 104 friend class FFmpegGlueTest; | |
| 105 static URLProtocol* url_protocol(); | |
| 106 | |
| 102 DISALLOW_COPY_AND_ASSIGN(FFmpegGlue); | 107 DISALLOW_COPY_AND_ASSIGN(FFmpegGlue); |
| 103 }; | 108 }; |
| 104 | 109 |
| 105 } // namespace media | 110 } // namespace media |
| 106 | 111 |
| 107 #endif // MEDIA_FILTERS_FFMPEG_GLUE_H_ | 112 #endif // MEDIA_FILTERS_FFMPEG_GLUE_H_ |
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