OLD | NEW |
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_MP2T_TS_PACKET_H_ | 5 #ifndef MEDIA_FORMATS_MP2T_TS_PACKET_H_ |
6 #define MEDIA_FORMATS_MP2T_TS_PACKET_H_ | 6 #define MEDIA_FORMATS_MP2T_TS_PACKET_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include <stdint.h> |
| 9 |
| 10 #include "base/macros.h" |
9 | 11 |
10 namespace media { | 12 namespace media { |
11 | 13 |
12 class BitReader; | 14 class BitReader; |
13 | 15 |
14 namespace mp2t { | 16 namespace mp2t { |
15 | 17 |
16 class TsPacket { | 18 class TsPacket { |
17 public: | 19 public: |
18 static const int kPacketSize = 188; | 20 static const int kPacketSize = 188; |
19 | 21 |
20 // Return the number of bytes to discard | 22 // Return the number of bytes to discard |
21 // to be synchronized on a TS syncword. | 23 // to be synchronized on a TS syncword. |
22 static int Sync(const uint8* buf, int size); | 24 static int Sync(const uint8_t* buf, int size); |
23 | 25 |
24 // Parse a TS packet. | 26 // Parse a TS packet. |
25 // Return a TsPacket only when parsing was successful. | 27 // Return a TsPacket only when parsing was successful. |
26 // Return NULL otherwise. | 28 // Return NULL otherwise. |
27 static TsPacket* Parse(const uint8* buf, int size); | 29 static TsPacket* Parse(const uint8_t* buf, int size); |
28 | 30 |
29 ~TsPacket(); | 31 ~TsPacket(); |
30 | 32 |
31 // TS header accessors. | 33 // TS header accessors. |
32 bool payload_unit_start_indicator() const { | 34 bool payload_unit_start_indicator() const { |
33 return payload_unit_start_indicator_; | 35 return payload_unit_start_indicator_; |
34 } | 36 } |
35 int pid() const { return pid_; } | 37 int pid() const { return pid_; } |
36 int continuity_counter() const { return continuity_counter_; } | 38 int continuity_counter() const { return continuity_counter_; } |
37 bool discontinuity_indicator() const { return discontinuity_indicator_; } | 39 bool discontinuity_indicator() const { return discontinuity_indicator_; } |
38 bool random_access_indicator() const { return random_access_indicator_; } | 40 bool random_access_indicator() const { return random_access_indicator_; } |
39 | 41 |
40 // Return the offset and the size of the payload. | 42 // Return the offset and the size of the payload. |
41 const uint8* payload() const { return payload_; } | 43 const uint8_t* payload() const { return payload_; } |
42 int payload_size() const { return payload_size_; } | 44 int payload_size() const { return payload_size_; } |
43 | 45 |
44 private: | 46 private: |
45 TsPacket(); | 47 TsPacket(); |
46 | 48 |
47 // Parse an Mpeg2 TS header. | 49 // Parse an Mpeg2 TS header. |
48 // The buffer size should be at least |kPacketSize| | 50 // The buffer size should be at least |kPacketSize| |
49 bool ParseHeader(const uint8* buf); | 51 bool ParseHeader(const uint8_t* buf); |
50 bool ParseAdaptationField(BitReader* bit_reader, | 52 bool ParseAdaptationField(BitReader* bit_reader, |
51 int adaptation_field_length); | 53 int adaptation_field_length); |
52 | 54 |
53 // Size of the payload. | 55 // Size of the payload. |
54 const uint8* payload_; | 56 const uint8_t* payload_; |
55 int payload_size_; | 57 int payload_size_; |
56 | 58 |
57 // TS header. | 59 // TS header. |
58 bool payload_unit_start_indicator_; | 60 bool payload_unit_start_indicator_; |
59 int pid_; | 61 int pid_; |
60 int continuity_counter_; | 62 int continuity_counter_; |
61 | 63 |
62 // Params from the adaptation field. | 64 // Params from the adaptation field. |
63 bool discontinuity_indicator_; | 65 bool discontinuity_indicator_; |
64 bool random_access_indicator_; | 66 bool random_access_indicator_; |
65 | 67 |
66 DISALLOW_COPY_AND_ASSIGN(TsPacket); | 68 DISALLOW_COPY_AND_ASSIGN(TsPacket); |
67 }; | 69 }; |
68 | 70 |
69 } // namespace mp2t | 71 } // namespace mp2t |
70 } // namespace media | 72 } // namespace media |
71 | 73 |
72 #endif | 74 #endif |
73 | 75 |
OLD | NEW |