The Tor Browser / file comparison
comparison: content/media/encoder/fmp4_muxer/MP4ESDS.cpp
content/media/encoder/fmp4_muxer/MP4ESDS.cpp
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
equal
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replaced
| -1:000000000000 | 0:fc5af37d3c0d |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 4 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include <climits> | |
| 7 #include "ISOControl.h" | |
| 8 #include "ISOMediaBoxes.h" | |
| 9 #include "MP4ESDS.h" | |
| 10 | |
| 11 namespace mozilla { | |
| 12 | |
| 13 nsresult | |
| 14 MP4AudioSampleEntry::Generate(uint32_t* aBoxSize) | |
| 15 { | |
| 16 uint32_t box_size; | |
| 17 nsresult rv = es->Generate(&box_size); | |
| 18 NS_ENSURE_SUCCESS(rv, rv); | |
| 19 size += box_size; | |
| 20 | |
| 21 *aBoxSize = size; | |
| 22 return NS_OK; | |
| 23 } | |
| 24 | |
| 25 nsresult | |
| 26 MP4AudioSampleEntry::Write() | |
| 27 { | |
| 28 BoxSizeChecker checker(mControl, size); | |
| 29 nsresult rv; | |
| 30 rv = AudioSampleEntry::Write(); | |
| 31 NS_ENSURE_SUCCESS(rv, rv); | |
| 32 rv = es->Write(); | |
| 33 NS_ENSURE_SUCCESS(rv, rv); | |
| 34 | |
| 35 return NS_OK; | |
| 36 } | |
| 37 | |
| 38 MP4AudioSampleEntry::MP4AudioSampleEntry(ISOControl* aControl) | |
| 39 : AudioSampleEntry(NS_LITERAL_CSTRING("mp4a"), aControl) | |
| 40 { | |
| 41 es = new ESDBox(aControl); | |
| 42 MOZ_COUNT_CTOR(MP4AudioSampleEntry); | |
| 43 } | |
| 44 | |
| 45 MP4AudioSampleEntry::~MP4AudioSampleEntry() | |
| 46 { | |
| 47 MOZ_COUNT_DTOR(MP4AudioSampleEntry); | |
| 48 } | |
| 49 | |
| 50 nsresult | |
| 51 ESDBox::Generate(uint32_t* aBoxSize) | |
| 52 { | |
| 53 uint32_t box_size; | |
| 54 es_descriptor->Generate(&box_size); | |
| 55 size += box_size; | |
| 56 *aBoxSize = size; | |
| 57 return NS_OK; | |
| 58 } | |
| 59 | |
| 60 nsresult | |
| 61 ESDBox::Write() | |
| 62 { | |
| 63 WRITE_FULLBOX(mControl, size) | |
| 64 es_descriptor->Write(); | |
| 65 return NS_OK; | |
| 66 } | |
| 67 | |
| 68 ESDBox::ESDBox(ISOControl* aControl) | |
| 69 : FullBox(NS_LITERAL_CSTRING("esds"), 0, 0, aControl) | |
| 70 { | |
| 71 es_descriptor = new ES_Descriptor(aControl); | |
| 72 MOZ_COUNT_CTOR(ESDBox); | |
| 73 } | |
| 74 | |
| 75 ESDBox::~ESDBox() | |
| 76 { | |
| 77 MOZ_COUNT_DTOR(ESDBox); | |
| 78 } | |
| 79 | |
| 80 nsresult | |
| 81 ES_Descriptor::Find(const nsACString& aType, | |
| 82 nsTArray<nsRefPtr<MuxerOperation>>& aOperations) | |
| 83 { | |
| 84 // ES_Descriptor is not a real ISOMediaBox, so we return nothing here. | |
| 85 return NS_OK; | |
| 86 } | |
| 87 | |
| 88 nsresult | |
| 89 ES_Descriptor::Write() | |
| 90 { | |
| 91 mControl->Write(tag); | |
| 92 mControl->Write(length); | |
| 93 mControl->Write(ES_ID); | |
| 94 mControl->WriteBits(streamDependenceFlag.to_ulong(), streamDependenceFlag.size()); | |
| 95 mControl->WriteBits(URL_Flag.to_ulong(), URL_Flag.size()); | |
| 96 mControl->WriteBits(reserved.to_ulong(), reserved.size()); | |
| 97 mControl->WriteBits(streamPriority.to_ulong(), streamPriority.size()); | |
| 98 mControl->Write(DecodeSpecificInfo.Elements(), DecodeSpecificInfo.Length()); | |
| 99 | |
| 100 return NS_OK; | |
| 101 } | |
| 102 | |
| 103 nsresult | |
| 104 ES_Descriptor::Generate(uint32_t* aBoxSize) | |
| 105 { | |
| 106 nsresult rv; | |
| 107 // 14496-1 '8.3.4 DecoderConfigDescriptor' | |
| 108 // 14496-1 '10.2.3 SL Packet Header Configuration' | |
| 109 FragmentBuffer* frag = mControl->GetFragment(Audio_Track); | |
| 110 rv = frag->GetCSD(DecodeSpecificInfo); | |
| 111 NS_ENSURE_SUCCESS(rv, rv); | |
| 112 | |
| 113 length = sizeof(ES_ID) + 1; | |
| 114 length += DecodeSpecificInfo.Length(); | |
| 115 | |
| 116 *aBoxSize = sizeof(tag) + sizeof(length) + length; | |
| 117 return NS_OK; | |
| 118 } | |
| 119 | |
| 120 ES_Descriptor::ES_Descriptor(ISOControl* aControl) | |
| 121 : tag(ESDescrTag) | |
| 122 , length(0) | |
| 123 , ES_ID(0) | |
| 124 , streamDependenceFlag(0) | |
| 125 , URL_Flag(0) | |
| 126 , reserved(0) | |
| 127 , streamPriority(0) | |
| 128 , mControl(aControl) | |
| 129 { | |
| 130 MOZ_COUNT_CTOR(ES_Descriptor); | |
| 131 } | |
| 132 | |
| 133 ES_Descriptor::~ES_Descriptor() | |
| 134 { | |
| 135 MOZ_COUNT_DTOR(ES_Descriptor); | |
| 136 } | |
| 137 | |
| 138 } |
