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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_MP4_STREAM_PARSER_H_ | 5 #ifndef MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_ |
6 #define MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_ | 6 #define MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_ |
7 | 7 |
8 #include <set> | 8 #include <set> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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21 namespace mp4 { | 21 namespace mp4 { |
22 | 22 |
23 struct Movie; | 23 struct Movie; |
24 class BoxReader; | 24 class BoxReader; |
25 | 25 |
26 class MEDIA_EXPORT MP4StreamParser : public StreamParser { | 26 class MEDIA_EXPORT MP4StreamParser : public StreamParser { |
27 public: | 27 public: |
28 MP4StreamParser(const std::set<int>& audio_object_types, bool has_sbr); | 28 MP4StreamParser(const std::set<int>& audio_object_types, bool has_sbr); |
29 ~MP4StreamParser() override; | 29 ~MP4StreamParser() override; |
30 | 30 |
31 void Init( | 31 void Init(const InitCB& init_cb, |
32 const InitCB& init_cb, | 32 const NewConfigCB& config_cb, |
33 const NewConfigCB& config_cb, | 33 const NewBuffersCB& new_buffers_cb, |
34 const NewBuffersCB& new_buffers_cb, | 34 bool ignore_text_tracks, |
35 bool ignore_text_tracks, | 35 const EncryptedMediaInitDataCB& encrypted_media_init_data_cb, |
36 const EncryptedMediaInitDataCB& encrypted_media_init_data_cb, | 36 const NewMediaSegmentCB& new_segment_cb, |
37 const NewMediaSegmentCB& new_segment_cb, | 37 const base::Closure& end_of_segment_cb, |
38 const base::Closure& end_of_segment_cb, | 38 const scoped_refptr<MediaLog>& media_log) override; |
39 const LogCB& log_cb) override; | |
40 void Flush() override; | 39 void Flush() override; |
41 bool Parse(const uint8* buf, int size) override; | 40 bool Parse(const uint8* buf, int size) override; |
42 | 41 |
43 private: | 42 private: |
44 enum State { | 43 enum State { |
45 kWaitingForInit, | 44 kWaitingForInit, |
46 kParsingBoxes, | 45 kParsingBoxes, |
47 kWaitingForSampleData, | 46 kWaitingForSampleData, |
48 kEmittingSamples, | 47 kEmittingSamples, |
49 kError | 48 kError |
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92 // computed. | 91 // computed. |
93 bool ComputeHighestEndOffset(const MovieFragment& moof); | 92 bool ComputeHighestEndOffset(const MovieFragment& moof); |
94 | 93 |
95 State state_; | 94 State state_; |
96 InitCB init_cb_; | 95 InitCB init_cb_; |
97 NewConfigCB config_cb_; | 96 NewConfigCB config_cb_; |
98 NewBuffersCB new_buffers_cb_; | 97 NewBuffersCB new_buffers_cb_; |
99 EncryptedMediaInitDataCB encrypted_media_init_data_cb_; | 98 EncryptedMediaInitDataCB encrypted_media_init_data_cb_; |
100 NewMediaSegmentCB new_segment_cb_; | 99 NewMediaSegmentCB new_segment_cb_; |
101 base::Closure end_of_segment_cb_; | 100 base::Closure end_of_segment_cb_; |
102 LogCB log_cb_; | 101 scoped_refptr<MediaLog> media_log_; |
103 | 102 |
104 OffsetByteQueue queue_; | 103 OffsetByteQueue queue_; |
105 | 104 |
106 // These two parameters are only valid in the |kEmittingSegments| state. | 105 // These two parameters are only valid in the |kEmittingSegments| state. |
107 // | 106 // |
108 // |moof_head_| is the offset of the start of the most recently parsed moof | 107 // |moof_head_| is the offset of the start of the most recently parsed moof |
109 // block. All byte offsets in sample information are relative to this offset, | 108 // block. All byte offsets in sample information are relative to this offset, |
110 // as mandated by the Media Source spec. | 109 // as mandated by the Media Source spec. |
111 int64 moof_head_; | 110 int64 moof_head_; |
112 // |mdat_tail_| is the stream offset of the end of the current 'mdat' box. | 111 // |mdat_tail_| is the stream offset of the end of the current 'mdat' box. |
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135 // prevent log spam. | 134 // prevent log spam. |
136 int num_top_level_box_skipped_; | 135 int num_top_level_box_skipped_; |
137 | 136 |
138 DISALLOW_COPY_AND_ASSIGN(MP4StreamParser); | 137 DISALLOW_COPY_AND_ASSIGN(MP4StreamParser); |
139 }; | 138 }; |
140 | 139 |
141 } // namespace mp4 | 140 } // namespace mp4 |
142 } // namespace media | 141 } // namespace media |
143 | 142 |
144 #endif // MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_ | 143 #endif // MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_ |
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