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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/media/encoder/fmp4_muxer/MP4ESDS.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/encoder/fmp4_muxer/MP4ESDS.cpp')
-rw-r--r-- | dom/media/encoder/fmp4_muxer/MP4ESDS.cpp | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/dom/media/encoder/fmp4_muxer/MP4ESDS.cpp b/dom/media/encoder/fmp4_muxer/MP4ESDS.cpp new file mode 100644 index 000000000..72880b5cb --- /dev/null +++ b/dom/media/encoder/fmp4_muxer/MP4ESDS.cpp @@ -0,0 +1,138 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <climits> +#include "ISOControl.h" +#include "ISOMediaBoxes.h" +#include "MP4ESDS.h" + +namespace mozilla { + +nsresult +MP4AudioSampleEntry::Generate(uint32_t* aBoxSize) +{ + uint32_t box_size; + nsresult rv = es->Generate(&box_size); + NS_ENSURE_SUCCESS(rv, rv); + size += box_size; + + *aBoxSize = size; + return NS_OK; +} + +nsresult +MP4AudioSampleEntry::Write() +{ + BoxSizeChecker checker(mControl, size); + nsresult rv; + rv = AudioSampleEntry::Write(); + NS_ENSURE_SUCCESS(rv, rv); + rv = es->Write(); + NS_ENSURE_SUCCESS(rv, rv); + + return NS_OK; +} + +MP4AudioSampleEntry::MP4AudioSampleEntry(ISOControl* aControl) + : AudioSampleEntry(NS_LITERAL_CSTRING("mp4a"), aControl) +{ + es = new ESDBox(aControl); + MOZ_COUNT_CTOR(MP4AudioSampleEntry); +} + +MP4AudioSampleEntry::~MP4AudioSampleEntry() +{ + MOZ_COUNT_DTOR(MP4AudioSampleEntry); +} + +nsresult +ESDBox::Generate(uint32_t* aBoxSize) +{ + uint32_t box_size; + es_descriptor->Generate(&box_size); + size += box_size; + *aBoxSize = size; + return NS_OK; +} + +nsresult +ESDBox::Write() +{ + WRITE_FULLBOX(mControl, size) + es_descriptor->Write(); + return NS_OK; +} + +ESDBox::ESDBox(ISOControl* aControl) + : FullBox(NS_LITERAL_CSTRING("esds"), 0, 0, aControl) +{ + es_descriptor = new ES_Descriptor(aControl); + MOZ_COUNT_CTOR(ESDBox); +} + +ESDBox::~ESDBox() +{ + MOZ_COUNT_DTOR(ESDBox); +} + +nsresult +ES_Descriptor::Find(const nsACString& aType, + nsTArray<RefPtr<MuxerOperation>>& aOperations) +{ + // ES_Descriptor is not a real ISOMediaBox, so we return nothing here. + return NS_OK; +} + +nsresult +ES_Descriptor::Write() +{ + mControl->Write(tag); + mControl->Write(length); + mControl->Write(ES_ID); + mControl->WriteBits(streamDependenceFlag.to_ulong(), streamDependenceFlag.size()); + mControl->WriteBits(URL_Flag.to_ulong(), URL_Flag.size()); + mControl->WriteBits(reserved.to_ulong(), reserved.size()); + mControl->WriteBits(streamPriority.to_ulong(), streamPriority.size()); + mControl->Write(DecodeSpecificInfo.Elements(), DecodeSpecificInfo.Length()); + + return NS_OK; +} + +nsresult +ES_Descriptor::Generate(uint32_t* aBoxSize) +{ + nsresult rv; + // 14496-1 '8.3.4 DecoderConfigDescriptor' + // 14496-1 '10.2.3 SL Packet Header Configuration' + FragmentBuffer* frag = mControl->GetFragment(Audio_Track); + rv = frag->GetCSD(DecodeSpecificInfo); + NS_ENSURE_SUCCESS(rv, rv); + + length = sizeof(ES_ID) + 1; + length += DecodeSpecificInfo.Length(); + + *aBoxSize = sizeof(tag) + sizeof(length) + length; + return NS_OK; +} + +ES_Descriptor::ES_Descriptor(ISOControl* aControl) + : tag(ESDescrTag) + , length(0) + , ES_ID(0) + , streamDependenceFlag(0) + , URL_Flag(0) + , reserved(0) + , streamPriority(0) + , mControl(aControl) +{ + MOZ_COUNT_CTOR(ES_Descriptor); +} + +ES_Descriptor::~ES_Descriptor() +{ + MOZ_COUNT_DTOR(ES_Descriptor); +} + +} |