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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_MP2T_ES_PARSER_ADTS_H_ | 5 #ifndef MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_ |
6 #define MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_ | 6 #define MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <list> | 10 #include <list> |
11 #include <utility> | 11 #include <utility> |
12 | 12 |
13 #include "base/callback.h" | 13 #include "base/callback.h" |
14 #include "base/compiler_specific.h" | 14 #include "base/compiler_specific.h" |
15 #include "base/macros.h" | 15 #include "base/macros.h" |
16 #include "base/memory/scoped_ptr.h" | 16 #include "base/memory/scoped_ptr.h" |
17 #include "base/time/time.h" | 17 #include "base/time/time.h" |
18 #include "media/base/audio_decoder_config.h" | 18 #include "media/base/audio_decoder_config.h" |
| 19 #include "media/base/decrypt_config.h" |
19 #include "media/base/media_export.h" | 20 #include "media/base/media_export.h" |
20 #include "media/formats/mp2t/es_parser.h" | 21 #include "media/formats/mp2t/es_parser.h" |
| 22 #include "media/media_features.h" |
21 | 23 |
22 namespace media { | 24 namespace media { |
23 class AudioTimestampHelper; | 25 class AudioTimestampHelper; |
24 class BitReader; | 26 class BitReader; |
25 class OffsetByteQueue; | 27 class OffsetByteQueue; |
26 class StreamParserBuffer; | 28 class StreamParserBuffer; |
27 } | 29 } |
28 | 30 |
29 namespace media { | 31 namespace media { |
30 namespace mp2t { | 32 namespace mp2t { |
31 | 33 |
32 class MEDIA_EXPORT EsParserAdts : public EsParser { | 34 class MEDIA_EXPORT EsParserAdts : public EsParser { |
33 public: | 35 public: |
34 typedef base::Callback<void(const AudioDecoderConfig&)> NewAudioConfigCB; | 36 typedef base::Callback<void(const AudioDecoderConfig&)> NewAudioConfigCB; |
35 | 37 |
36 EsParserAdts(const NewAudioConfigCB& new_audio_config_cb, | 38 EsParserAdts(const NewAudioConfigCB& new_audio_config_cb, |
37 const EmitBufferCB& emit_buffer_cb, | 39 const EmitBufferCB& emit_buffer_cb, |
38 bool sbr_in_mimetype); | 40 bool sbr_in_mimetype); |
| 41 #if BUILDFLAG(ENABLE_HLS_SAMPLE_AES) |
| 42 EsParserAdts(const NewAudioConfigCB& new_audio_config_cb, |
| 43 const EmitBufferCB& emit_buffer_cb, |
| 44 const GetDecryptConfigCB& get_decrypt_config_cb, |
| 45 bool use_hls_sample_aes, |
| 46 bool sbr_in_mimetype); |
| 47 #endif |
| 48 |
39 ~EsParserAdts() override; | 49 ~EsParserAdts() override; |
40 | 50 |
41 // EsParser implementation. | 51 // EsParser implementation. |
42 void Flush() override; | 52 void Flush() override; |
43 | 53 |
44 private: | 54 private: |
45 struct AdtsFrame; | 55 struct AdtsFrame; |
46 | 56 |
47 // EsParser implementation. | 57 // EsParser implementation. |
48 bool ParseFromEsQueue() override; | 58 bool ParseFromEsQueue() override; |
49 void ResetInternal() override; | 59 void ResetInternal() override; |
50 | 60 |
51 // Synchronize the stream on an ADTS syncword (consuming bytes from | 61 // Synchronize the stream on an ADTS syncword (consuming bytes from |
52 // |es_queue_| if needed). | 62 // |es_queue_| if needed). |
53 // Returns true when a full ADTS frame has been found: in that case | 63 // Returns true when a full ADTS frame has been found: in that case |
54 // |adts_frame| structure is filled up accordingly. | 64 // |adts_frame| structure is filled up accordingly. |
55 // Returns false otherwise (no ADTS syncword found or partial ADTS frame). | 65 // Returns false otherwise (no ADTS syncword found or partial ADTS frame). |
56 bool LookForAdtsFrame(AdtsFrame* adts_frame); | 66 bool LookForAdtsFrame(AdtsFrame* adts_frame); |
57 | 67 |
58 // Skip an ADTS frame in the ES queue. | 68 // Skip an ADTS frame in the ES queue. |
59 void SkipAdtsFrame(const AdtsFrame& adts_frame); | 69 void SkipAdtsFrame(const AdtsFrame& adts_frame); |
60 | 70 |
61 // Signal any audio configuration change (if any). | 71 // Signal any audio configuration change (if any). |
62 // Return false if the current audio config is not | 72 // Return false if the current audio config is not |
63 // a supported ADTS audio config. | 73 // a supported ADTS audio config. |
64 bool UpdateAudioConfiguration(const uint8_t* adts_header); | 74 bool UpdateAudioConfiguration(const uint8_t* adts_header); |
65 | 75 |
| 76 #if BUILDFLAG(ENABLE_HLS_SAMPLE_AES) |
| 77 void CalculateSubsamplesForAdtsFrame(const AdtsFrame& adts_frame, |
| 78 std::vector<SubsampleEntry>* subsamples); |
| 79 #endif |
| 80 |
66 // Callbacks: | 81 // Callbacks: |
67 // - to signal a new audio configuration, | 82 // - to signal a new audio configuration, |
68 // - to send ES buffers. | 83 // - to send ES buffers. |
69 NewAudioConfigCB new_audio_config_cb_; | 84 NewAudioConfigCB new_audio_config_cb_; |
70 EmitBufferCB emit_buffer_cb_; | 85 EmitBufferCB emit_buffer_cb_; |
| 86 #if BUILDFLAG(ENABLE_HLS_SAMPLE_AES) |
| 87 // - to obtain the current decrypt_config. Only called if use_hls_sample_aes_. |
| 88 GetDecryptConfigCB get_decrypt_config_cb_; |
| 89 bool use_hls_sample_aes_; |
| 90 #endif |
71 | 91 |
72 // True when AAC SBR extension is signalled in the mimetype | 92 // True when AAC SBR extension is signalled in the mimetype |
73 // (mp4a.40.5 in the codecs parameter). | 93 // (mp4a.40.5 in the codecs parameter). |
74 bool sbr_in_mimetype_; | 94 bool sbr_in_mimetype_; |
75 | 95 |
76 // Interpolated PTS for frames that don't have one. | 96 // Interpolated PTS for frames that don't have one. |
77 scoped_ptr<AudioTimestampHelper> audio_timestamp_helper_; | 97 scoped_ptr<AudioTimestampHelper> audio_timestamp_helper_; |
78 | 98 |
79 // Last audio config. | 99 // Last audio config. |
80 AudioDecoderConfig last_audio_decoder_config_; | 100 AudioDecoderConfig last_audio_decoder_config_; |
81 | 101 |
82 DISALLOW_COPY_AND_ASSIGN(EsParserAdts); | 102 DISALLOW_COPY_AND_ASSIGN(EsParserAdts); |
83 }; | 103 }; |
84 | 104 |
85 } // namespace mp2t | 105 } // namespace mp2t |
86 } // namespace media | 106 } // namespace media |
87 | 107 |
88 #endif | 108 #endif |
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