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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_H264_H_ | 5 #ifndef MEDIA_FORMATS_MP2T_ES_PARSER_H264_H_ |
6 #define MEDIA_FORMATS_MP2T_ES_PARSER_H264_H_ | 6 #define MEDIA_FORMATS_MP2T_ES_PARSER_H264_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <utility> | 10 #include <utility> |
11 | 11 |
12 #include "base/callback.h" | 12 #include "base/callback.h" |
13 #include "base/compiler_specific.h" | 13 #include "base/compiler_specific.h" |
14 #include "base/macros.h" | 14 #include "base/macros.h" |
15 #include "base/memory/scoped_ptr.h" | 15 #include "base/memory/scoped_ptr.h" |
16 #include "base/time/time.h" | 16 #include "base/time/time.h" |
17 #include "media/base/media_export.h" | 17 #include "media/base/media_export.h" |
| 18 #include "media/base/ranges.h" |
18 #include "media/base/video_decoder_config.h" | 19 #include "media/base/video_decoder_config.h" |
19 #include "media/formats/mp2t/es_adapter_video.h" | 20 #include "media/formats/mp2t/es_adapter_video.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 EncryptionScheme; | 25 class EncryptionScheme; |
24 class H264Parser; | 26 class H264Parser; |
25 struct H264SPS; | 27 struct H264SPS; |
26 class OffsetByteQueue; | 28 class OffsetByteQueue; |
27 } | 29 } |
28 | 30 |
29 namespace media { | 31 namespace media { |
30 namespace mp2t { | 32 namespace mp2t { |
31 | 33 |
32 // A few remarks: | 34 // A few remarks: |
33 // - In this h264 parser, frame splitting is based on AUD nals. | 35 // - In this h264 parser, frame splitting is based on AUD nals. |
34 // Mpeg2 TS spec: "2.14 Carriage of Rec. ITU-T H.264 | ISO/IEC 14496-10 video" | 36 // Mpeg2 TS spec: "2.14 Carriage of Rec. ITU-T H.264 | ISO/IEC 14496-10 video" |
35 // "Each AVC access unit shall contain an access unit delimiter NAL Unit;" | 37 // "Each AVC access unit shall contain an access unit delimiter NAL Unit;" |
36 // - PES packets do not necessarily map to an H264 access unit although the HLS | 38 // - PES packets do not necessarily map to an H264 access unit although the HLS |
37 // recommendation is to use one PES for each access unit. In this parser, | 39 // recommendation is to use one PES for each access unit. In this parser, |
38 // we handle the general case and do not make any assumption about the access | 40 // we handle the general case and do not make any assumption about the access |
39 // unit organization within PES packets. | 41 // unit organization within PES packets. |
40 // | 42 // |
41 class MEDIA_EXPORT EsParserH264 : public EsParser { | 43 class MEDIA_EXPORT EsParserH264 : public EsParser { |
42 public: | 44 public: |
43 typedef base::Callback<void(const VideoDecoderConfig&)> NewVideoConfigCB; | 45 typedef base::Callback<void(const VideoDecoderConfig&)> NewVideoConfigCB; |
44 | 46 |
45 EsParserH264(const NewVideoConfigCB& new_video_config_cb, | 47 EsParserH264(const NewVideoConfigCB& new_video_config_cb, |
46 const EmitBufferCB& emit_buffer_cb); | 48 const EmitBufferCB& emit_buffer_cb); |
| 49 #if BUILDFLAG(ENABLE_HLS_SAMPLE_AES) |
| 50 EsParserH264(const NewVideoConfigCB& new_video_config_cb, |
| 51 const EmitBufferCB& emit_buffer_cb, |
| 52 const GetDecryptConfigCB& get_decrypt_config_cb, |
| 53 bool use_hls_sample_aes); |
| 54 #endif |
47 ~EsParserH264() override; | 55 ~EsParserH264() override; |
48 | 56 |
49 // EsParser implementation. | 57 // EsParser implementation. |
50 void Flush() override; | 58 void Flush() override; |
51 | 59 |
52 private: | 60 private: |
53 // EsParser implementation. | 61 // EsParser implementation. |
54 bool ParseFromEsQueue() override; | 62 bool ParseFromEsQueue() override; |
55 void ResetInternal() override; | 63 void ResetInternal() override; |
56 | 64 |
(...skipping 17 matching lines...) Expand all Loading... |
74 const EncryptionScheme& scheme); | 82 const EncryptionScheme& scheme); |
75 | 83 |
76 EsAdapterVideo es_adapter_; | 84 EsAdapterVideo es_adapter_; |
77 | 85 |
78 // H264 parser state. | 86 // H264 parser state. |
79 // - |current_access_unit_pos_| is pointing to an annexB syncword | 87 // - |current_access_unit_pos_| is pointing to an annexB syncword |
80 // representing the first NALU of an H264 access unit. | 88 // representing the first NALU of an H264 access unit. |
81 scoped_ptr<H264Parser> h264_parser_; | 89 scoped_ptr<H264Parser> h264_parser_; |
82 int64_t current_access_unit_pos_; | 90 int64_t current_access_unit_pos_; |
83 int64_t next_access_unit_pos_; | 91 int64_t next_access_unit_pos_; |
| 92 #if BUILDFLAG(ENABLE_HLS_SAMPLE_AES) |
| 93 Ranges<int> protected_blocks_; |
| 94 // Callback to obtain the current decrypt_config. |
| 95 // Only called if use_hls_sample_aes_ is true. |
| 96 GetDecryptConfigCB get_decrypt_config_cb_; |
| 97 bool use_hls_sample_aes_; |
| 98 #endif |
84 | 99 |
85 // Last video decoder config. | 100 // Last video decoder config. |
86 VideoDecoderConfig last_video_decoder_config_; | 101 VideoDecoderConfig last_video_decoder_config_; |
87 | 102 |
88 DISALLOW_COPY_AND_ASSIGN(EsParserH264); | 103 DISALLOW_COPY_AND_ASSIGN(EsParserH264); |
89 }; | 104 }; |
90 | 105 |
91 } // namespace mp2t | 106 } // namespace mp2t |
92 } // namespace media | 107 } // namespace media |
93 | 108 |
94 #endif | 109 #endif |
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