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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_MPEG1AUDIO_H_ | 5 #ifndef MEDIA_FORMATS_MP2T_ES_PARSER_MPEG1AUDIO_H_ |
6 #define MEDIA_FORMATS_MP2T_ES_PARSER_MPEG1AUDIO_H_ | 6 #define MEDIA_FORMATS_MP2T_ES_PARSER_MPEG1AUDIO_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <utility> | 9 #include <utility> |
10 | 10 |
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34 EsParserMpeg1Audio(const NewAudioConfigCB& new_audio_config_cb, | 34 EsParserMpeg1Audio(const NewAudioConfigCB& new_audio_config_cb, |
35 const EmitBufferCB& emit_buffer_cb, | 35 const EmitBufferCB& emit_buffer_cb, |
36 const scoped_refptr<MediaLog>& media_log); | 36 const scoped_refptr<MediaLog>& media_log); |
37 ~EsParserMpeg1Audio() override; | 37 ~EsParserMpeg1Audio() override; |
38 | 38 |
39 // EsParser implementation. | 39 // EsParser implementation. |
40 void Flush() override; | 40 void Flush() override; |
41 | 41 |
42 private: | 42 private: |
43 // Used to link a PTS with a byte position in the ES stream. | 43 // Used to link a PTS with a byte position in the ES stream. |
44 typedef std::pair<int64, base::TimeDelta> EsPts; | 44 typedef std::pair<int64_t, base::TimeDelta> EsPts; |
45 typedef std::list<EsPts> EsPtsList; | 45 typedef std::list<EsPts> EsPtsList; |
46 | 46 |
47 struct Mpeg1AudioFrame; | 47 struct Mpeg1AudioFrame; |
48 | 48 |
49 // EsParser implementation. | 49 // EsParser implementation. |
50 bool ParseFromEsQueue() override; | 50 bool ParseFromEsQueue() override; |
51 void ResetInternal() override; | 51 void ResetInternal() override; |
52 | 52 |
53 // Synchronize the stream on a Mpeg1 audio syncword (consuming bytes from | 53 // Synchronize the stream on a Mpeg1 audio syncword (consuming bytes from |
54 // |es_queue_| if needed). | 54 // |es_queue_| if needed). |
55 // Returns true when a full Mpeg1 audio frame has been found: in that case | 55 // Returns true when a full Mpeg1 audio frame has been found: in that case |
56 // |mpeg1audio_frame| structure is filled up accordingly. | 56 // |mpeg1audio_frame| structure is filled up accordingly. |
57 // Returns false otherwise (no Mpeg1 audio syncword found or partial Mpeg1 | 57 // Returns false otherwise (no Mpeg1 audio syncword found or partial Mpeg1 |
58 // audio frame). | 58 // audio frame). |
59 bool LookForMpeg1AudioFrame(Mpeg1AudioFrame* mpeg1audio_frame); | 59 bool LookForMpeg1AudioFrame(Mpeg1AudioFrame* mpeg1audio_frame); |
60 | 60 |
61 // Signal any audio configuration change (if any). | 61 // Signal any audio configuration change (if any). |
62 // Return false if the current audio config is not | 62 // Return false if the current audio config is not |
63 // a supported Mpeg1 audio config. | 63 // a supported Mpeg1 audio config. |
64 bool UpdateAudioConfiguration(const uint8* mpeg1audio_header); | 64 bool UpdateAudioConfiguration(const uint8_t* mpeg1audio_header); |
65 | 65 |
66 void SkipMpeg1AudioFrame(const Mpeg1AudioFrame& mpeg1audio_frame); | 66 void SkipMpeg1AudioFrame(const Mpeg1AudioFrame& mpeg1audio_frame); |
67 | 67 |
68 scoped_refptr<MediaLog> media_log_; | 68 scoped_refptr<MediaLog> media_log_; |
69 | 69 |
70 // Callbacks: | 70 // Callbacks: |
71 // - to signal a new audio configuration, | 71 // - to signal a new audio configuration, |
72 // - to send ES buffers. | 72 // - to send ES buffers. |
73 NewAudioConfigCB new_audio_config_cb_; | 73 NewAudioConfigCB new_audio_config_cb_; |
74 EmitBufferCB emit_buffer_cb_; | 74 EmitBufferCB emit_buffer_cb_; |
75 | 75 |
76 // Interpolated PTS for frames that don't have one. | 76 // Interpolated PTS for frames that don't have one. |
77 scoped_ptr<AudioTimestampHelper> audio_timestamp_helper_; | 77 scoped_ptr<AudioTimestampHelper> audio_timestamp_helper_; |
78 | 78 |
79 // Last audio config. | 79 // Last audio config. |
80 AudioDecoderConfig last_audio_decoder_config_; | 80 AudioDecoderConfig last_audio_decoder_config_; |
81 | 81 |
82 DISALLOW_COPY_AND_ASSIGN(EsParserMpeg1Audio); | 82 DISALLOW_COPY_AND_ASSIGN(EsParserMpeg1Audio); |
83 }; | 83 }; |
84 | 84 |
85 } // namespace mp2t | 85 } // namespace mp2t |
86 } // namespace media | 86 } // namespace media |
87 | 87 |
88 #endif // MEDIA_FORMATS_MP2T_ES_PARSER_MPEG1AUDIO_H_ | 88 #endif // MEDIA_FORMATS_MP2T_ES_PARSER_MPEG1AUDIO_H_ |
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