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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_STREAM_PARSER_H_ | 5 #ifndef MEDIA_BASE_STREAM_PARSER_H_ |
| 6 #define MEDIA_BASE_STREAM_PARSER_H_ | 6 #define MEDIA_BASE_STREAM_PARSER_H_ |
| 7 | 7 |
| 8 #include <deque> | 8 #include <deque> |
| 9 #include <map> | 9 #include <map> |
| 10 #include <string> | 10 #include <string> |
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| 100 const BufferQueue&, | 100 const BufferQueue&, |
| 101 const TextBufferQueueMap&)> NewBuffersCB; | 101 const TextBufferQueueMap&)> NewBuffersCB; |
| 102 | 102 |
| 103 // Signals the beginning of a new media segment. | 103 // Signals the beginning of a new media segment. |
| 104 typedef base::Callback<void()> NewMediaSegmentCB; | 104 typedef base::Callback<void()> NewMediaSegmentCB; |
| 105 | 105 |
| 106 // A new potentially encrypted stream has been parsed. | 106 // A new potentially encrypted stream has been parsed. |
| 107 // First parameter - The type of the initialization data associated with the | 107 // First parameter - The type of the initialization data associated with the |
| 108 // stream. | 108 // stream. |
| 109 // Second parameter - The initialization data associated with the stream. | 109 // Second parameter - The initialization data associated with the stream. |
| 110 typedef base::Callback<void(const std::string&, | 110 typedef base::Callback<void(const std::string&, const std::vector<uint8>&)> |
| 111 const std::vector<uint8>&)> NeedKeyCB; | 111 EncryptedMediaInitDataCB; |
| 112 | 112 |
| 113 StreamParser(); | 113 StreamParser(); |
| 114 virtual ~StreamParser(); | 114 virtual ~StreamParser(); |
| 115 | 115 |
| 116 // Initializes the parser with necessary callbacks. Must be called before any | 116 // Initializes the parser with necessary callbacks. Must be called before any |
| 117 // data is passed to Parse(). |init_cb| will be called once enough data has | 117 // data is passed to Parse(). |init_cb| will be called once enough data has |
| 118 // been parsed to determine the initial stream configurations, presentation | 118 // been parsed to determine the initial stream configurations, presentation |
| 119 // start time, and duration. If |ignore_text_track| is true, then no text | 119 // start time, and duration. If |ignore_text_track| is true, then no text |
| 120 // buffers should be passed later by the parser to |new_buffers_cb|. | 120 // buffers should be passed later by the parser to |new_buffers_cb|. |
| 121 virtual void Init(const InitCB& init_cb, | 121 virtual void Init( |
| 122 const NewConfigCB& config_cb, | 122 const InitCB& init_cb, |
| 123 const NewBuffersCB& new_buffers_cb, | 123 const NewConfigCB& config_cb, |
| 124 bool ignore_text_track, | 124 const NewBuffersCB& new_buffers_cb, |
| 125 const NeedKeyCB& need_key_cb, | 125 bool ignore_text_track, |
| 126 const NewMediaSegmentCB& new_segment_cb, | 126 const EncryptedMediaInitDataCB& encrypted_media_init_data_cb, |
| 127 const base::Closure& end_of_segment_cb, | 127 const NewMediaSegmentCB& new_segment_cb, |
| 128 const LogCB& log_cb) = 0; | 128 const base::Closure& end_of_segment_cb, |
| 129 const LogCB& log_cb) = 0; |
| 129 | 130 |
| 130 // Called when a seek occurs. This flushes the current parser state | 131 // Called when a seek occurs. This flushes the current parser state |
| 131 // and puts the parser in a state where it can receive data for the new seek | 132 // and puts the parser in a state where it can receive data for the new seek |
| 132 // point. | 133 // point. |
| 133 virtual void Flush() = 0; | 134 virtual void Flush() = 0; |
| 134 | 135 |
| 135 // Called when there is new data to parse. | 136 // Called when there is new data to parse. |
| 136 // | 137 // |
| 137 // Returns true if the parse succeeds. | 138 // Returns true if the parse succeeds. |
| 138 virtual bool Parse(const uint8* buf, int size) = 0; | 139 virtual bool Parse(const uint8* buf, int size) = 0; |
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| 154 // subtle issues with tie-breaking. See http://crbug.com/338484. | 155 // subtle issues with tie-breaking. See http://crbug.com/338484. |
| 155 MEDIA_EXPORT bool MergeBufferQueues( | 156 MEDIA_EXPORT bool MergeBufferQueues( |
| 156 const StreamParser::BufferQueue& audio_buffers, | 157 const StreamParser::BufferQueue& audio_buffers, |
| 157 const StreamParser::BufferQueue& video_buffers, | 158 const StreamParser::BufferQueue& video_buffers, |
| 158 const StreamParser::TextBufferQueueMap& text_buffers, | 159 const StreamParser::TextBufferQueueMap& text_buffers, |
| 159 StreamParser::BufferQueue* merged_buffers); | 160 StreamParser::BufferQueue* merged_buffers); |
| 160 | 161 |
| 161 } // namespace media | 162 } // namespace media |
| 162 | 163 |
| 163 #endif // MEDIA_BASE_STREAM_PARSER_H_ | 164 #endif // MEDIA_BASE_STREAM_PARSER_H_ |
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