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Side by Side Diff: media/formats/mp4/mp4_stream_parser.h

Issue 1502503004: Remove kuint64max. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@kint8
Patch Set: rebase Created 5 years ago
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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 <stdint.h>
9
8 #include <set> 10 #include <set>
9 #include <vector> 11 #include <vector>
10 12
11 #include "base/basictypes.h"
12 #include "base/callback.h" 13 #include "base/callback.h"
13 #include "base/compiler_specific.h" 14 #include "base/compiler_specific.h"
15 #include "base/macros.h"
14 #include "base/memory/scoped_ptr.h" 16 #include "base/memory/scoped_ptr.h"
15 #include "media/base/media_export.h" 17 #include "media/base/media_export.h"
16 #include "media/base/stream_parser.h" 18 #include "media/base/stream_parser.h"
17 #include "media/formats/common/offset_byte_queue.h" 19 #include "media/formats/common/offset_byte_queue.h"
18 #include "media/formats/mp4/track_run_iterator.h" 20 #include "media/formats/mp4/track_run_iterator.h"
19 21
20 namespace media { 22 namespace media {
21 namespace mp4 { 23 namespace mp4 {
22 24
23 struct Movie; 25 struct Movie;
24 class BoxReader; 26 class BoxReader;
25 27
26 class MEDIA_EXPORT MP4StreamParser : public StreamParser { 28 class MEDIA_EXPORT MP4StreamParser : public StreamParser {
27 public: 29 public:
28 MP4StreamParser(const std::set<int>& audio_object_types, bool has_sbr); 30 MP4StreamParser(const std::set<int>& audio_object_types, bool has_sbr);
29 ~MP4StreamParser() override; 31 ~MP4StreamParser() override;
30 32
31 void Init(const InitCB& init_cb, 33 void Init(const InitCB& init_cb,
32 const NewConfigCB& config_cb, 34 const NewConfigCB& config_cb,
33 const NewBuffersCB& new_buffers_cb, 35 const NewBuffersCB& new_buffers_cb,
34 bool ignore_text_tracks, 36 bool ignore_text_tracks,
35 const EncryptedMediaInitDataCB& encrypted_media_init_data_cb, 37 const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
36 const NewMediaSegmentCB& new_segment_cb, 38 const NewMediaSegmentCB& new_segment_cb,
37 const base::Closure& end_of_segment_cb, 39 const base::Closure& end_of_segment_cb,
38 const scoped_refptr<MediaLog>& media_log) override; 40 const scoped_refptr<MediaLog>& media_log) override;
39 void Flush() override; 41 void Flush() override;
40 bool Parse(const uint8* buf, int size) override; 42 bool Parse(const uint8_t* buf, int size) override;
41 43
42 private: 44 private:
43 enum State { 45 enum State {
44 kWaitingForInit, 46 kWaitingForInit,
45 kParsingBoxes, 47 kParsingBoxes,
46 kWaitingForSampleData, 48 kWaitingForSampleData,
47 kEmittingSamples, 49 kEmittingSamples,
48 kError 50 kError
49 }; 51 };
50 52
51 bool ParseBox(bool* err); 53 bool ParseBox(bool* err);
52 bool ParseMoov(mp4::BoxReader* reader); 54 bool ParseMoov(mp4::BoxReader* reader);
53 bool ParseMoof(mp4::BoxReader* reader); 55 bool ParseMoof(mp4::BoxReader* reader);
54 56
55 void OnEncryptedMediaInitData( 57 void OnEncryptedMediaInitData(
56 const std::vector<ProtectionSystemSpecificHeader>& headers); 58 const std::vector<ProtectionSystemSpecificHeader>& headers);
57 59
58 // To retain proper framing, each 'mdat' atom must be read; to limit memory 60 // To retain proper framing, each 'mdat' atom must be read; to limit memory
59 // usage, the atom's data needs to be discarded incrementally as frames are 61 // usage, the atom's data needs to be discarded incrementally as frames are
60 // extracted from the stream. This function discards data from the stream up 62 // extracted from the stream. This function discards data from the stream up
61 // to |max_clear_offset|, updating the |mdat_tail_| value so that framing can 63 // to |max_clear_offset|, updating the |mdat_tail_| value so that framing can
62 // be retained after all 'mdat' information has been read. |max_clear_offset| 64 // be retained after all 'mdat' information has been read. |max_clear_offset|
63 // is the upper bound on what can be removed from |queue_|. Anything below 65 // is the upper bound on what can be removed from |queue_|. Anything below
64 // this offset is no longer needed by the parser. 66 // this offset is no longer needed by the parser.
65 // Returns 'true' on success, 'false' if there was an error. 67 // Returns 'true' on success, 'false' if there was an error.
66 bool ReadAndDiscardMDATsUntil(int64 max_clear_offset); 68 bool ReadAndDiscardMDATsUntil(int64_t max_clear_offset);
67 69
68 void ChangeState(State new_state); 70 void ChangeState(State new_state);
69 71
70 bool EmitConfigs(); 72 bool EmitConfigs();
71 bool PrepareAACBuffer(const AAC& aac_config, 73 bool PrepareAACBuffer(const AAC& aac_config,
72 std::vector<uint8>* frame_buf, 74 std::vector<uint8_t>* frame_buf,
73 std::vector<SubsampleEntry>* subsamples) const; 75 std::vector<SubsampleEntry>* subsamples) const;
74 bool EnqueueSample(BufferQueue* audio_buffers, 76 bool EnqueueSample(BufferQueue* audio_buffers,
75 BufferQueue* video_buffers, 77 BufferQueue* video_buffers,
76 bool* err); 78 bool* err);
77 bool SendAndFlushSamples(BufferQueue* audio_buffers, 79 bool SendAndFlushSamples(BufferQueue* audio_buffers,
78 BufferQueue* video_buffers); 80 BufferQueue* video_buffers);
79 81
80 void Reset(); 82 void Reset();
81 83
82 // Checks to see if we have enough data in |queue_| to transition to 84 // Checks to see if we have enough data in |queue_| to transition to
(...skipping 14 matching lines...) Expand all
97 base::Closure end_of_segment_cb_; 99 base::Closure end_of_segment_cb_;
98 scoped_refptr<MediaLog> media_log_; 100 scoped_refptr<MediaLog> media_log_;
99 101
100 OffsetByteQueue queue_; 102 OffsetByteQueue queue_;
101 103
102 // These two parameters are only valid in the |kEmittingSegments| state. 104 // These two parameters are only valid in the |kEmittingSegments| state.
103 // 105 //
104 // |moof_head_| is the offset of the start of the most recently parsed moof 106 // |moof_head_| is the offset of the start of the most recently parsed moof
105 // block. All byte offsets in sample information are relative to this offset, 107 // block. All byte offsets in sample information are relative to this offset,
106 // as mandated by the Media Source spec. 108 // as mandated by the Media Source spec.
107 int64 moof_head_; 109 int64_t moof_head_;
108 // |mdat_tail_| is the stream offset of the end of the current 'mdat' box. 110 // |mdat_tail_| is the stream offset of the end of the current 'mdat' box.
109 // Valid iff it is greater than the head of the queue. 111 // Valid iff it is greater than the head of the queue.
110 int64 mdat_tail_; 112 int64_t mdat_tail_;
111 113
112 // The highest end offset in the current moof. This offset is 114 // The highest end offset in the current moof. This offset is
113 // relative to |moof_head_|. This value is used to make sure we have collected 115 // relative to |moof_head_|. This value is used to make sure we have collected
114 // enough bytes to parse all samples and aux_info in the current moof. 116 // enough bytes to parse all samples and aux_info in the current moof.
115 int64 highest_end_offset_; 117 int64_t highest_end_offset_;
116 118
117 scoped_ptr<mp4::Movie> moov_; 119 scoped_ptr<mp4::Movie> moov_;
118 scoped_ptr<mp4::TrackRunIterator> runs_; 120 scoped_ptr<mp4::TrackRunIterator> runs_;
119 121
120 bool has_audio_; 122 bool has_audio_;
121 bool has_video_; 123 bool has_video_;
122 uint32 audio_track_id_; 124 uint32_t audio_track_id_;
123 uint32 video_track_id_; 125 uint32_t video_track_id_;
124 // The object types allowed for audio tracks. 126 // The object types allowed for audio tracks.
125 std::set<int> audio_object_types_; 127 std::set<int> audio_object_types_;
126 bool has_sbr_; 128 bool has_sbr_;
127 bool is_audio_track_encrypted_; 129 bool is_audio_track_encrypted_;
128 bool is_video_track_encrypted_; 130 bool is_video_track_encrypted_;
129 131
130 // Tracks the number of MEDIA_LOGs for skipping top level boxes. Useful to 132 // Tracks the number of MEDIA_LOGs for skipping top level boxes. Useful to
131 // prevent log spam. 133 // prevent log spam.
132 int num_top_level_box_skipped_; 134 int num_top_level_box_skipped_;
133 135
134 DISALLOW_COPY_AND_ASSIGN(MP4StreamParser); 136 DISALLOW_COPY_AND_ASSIGN(MP4StreamParser);
135 }; 137 };
136 138
137 } // namespace mp4 139 } // namespace mp4
138 } // namespace media 140 } // namespace media
139 141
140 #endif // MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_ 142 #endif // MEDIA_FORMATS_MP4_MP4_STREAM_PARSER_H_
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