1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/encoder/fmp4_muxer/MP4ESDS.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,138 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.7 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include <climits>
1.10 +#include "ISOControl.h"
1.11 +#include "ISOMediaBoxes.h"
1.12 +#include "MP4ESDS.h"
1.13 +
1.14 +namespace mozilla {
1.15 +
1.16 +nsresult
1.17 +MP4AudioSampleEntry::Generate(uint32_t* aBoxSize)
1.18 +{
1.19 + uint32_t box_size;
1.20 + nsresult rv = es->Generate(&box_size);
1.21 + NS_ENSURE_SUCCESS(rv, rv);
1.22 + size += box_size;
1.23 +
1.24 + *aBoxSize = size;
1.25 + return NS_OK;
1.26 +}
1.27 +
1.28 +nsresult
1.29 +MP4AudioSampleEntry::Write()
1.30 +{
1.31 + BoxSizeChecker checker(mControl, size);
1.32 + nsresult rv;
1.33 + rv = AudioSampleEntry::Write();
1.34 + NS_ENSURE_SUCCESS(rv, rv);
1.35 + rv = es->Write();
1.36 + NS_ENSURE_SUCCESS(rv, rv);
1.37 +
1.38 + return NS_OK;
1.39 +}
1.40 +
1.41 +MP4AudioSampleEntry::MP4AudioSampleEntry(ISOControl* aControl)
1.42 + : AudioSampleEntry(NS_LITERAL_CSTRING("mp4a"), aControl)
1.43 +{
1.44 + es = new ESDBox(aControl);
1.45 + MOZ_COUNT_CTOR(MP4AudioSampleEntry);
1.46 +}
1.47 +
1.48 +MP4AudioSampleEntry::~MP4AudioSampleEntry()
1.49 +{
1.50 + MOZ_COUNT_DTOR(MP4AudioSampleEntry);
1.51 +}
1.52 +
1.53 +nsresult
1.54 +ESDBox::Generate(uint32_t* aBoxSize)
1.55 +{
1.56 + uint32_t box_size;
1.57 + es_descriptor->Generate(&box_size);
1.58 + size += box_size;
1.59 + *aBoxSize = size;
1.60 + return NS_OK;
1.61 +}
1.62 +
1.63 +nsresult
1.64 +ESDBox::Write()
1.65 +{
1.66 + WRITE_FULLBOX(mControl, size)
1.67 + es_descriptor->Write();
1.68 + return NS_OK;
1.69 +}
1.70 +
1.71 +ESDBox::ESDBox(ISOControl* aControl)
1.72 + : FullBox(NS_LITERAL_CSTRING("esds"), 0, 0, aControl)
1.73 +{
1.74 + es_descriptor = new ES_Descriptor(aControl);
1.75 + MOZ_COUNT_CTOR(ESDBox);
1.76 +}
1.77 +
1.78 +ESDBox::~ESDBox()
1.79 +{
1.80 + MOZ_COUNT_DTOR(ESDBox);
1.81 +}
1.82 +
1.83 +nsresult
1.84 +ES_Descriptor::Find(const nsACString& aType,
1.85 + nsTArray<nsRefPtr<MuxerOperation>>& aOperations)
1.86 +{
1.87 + // ES_Descriptor is not a real ISOMediaBox, so we return nothing here.
1.88 + return NS_OK;
1.89 +}
1.90 +
1.91 +nsresult
1.92 +ES_Descriptor::Write()
1.93 +{
1.94 + mControl->Write(tag);
1.95 + mControl->Write(length);
1.96 + mControl->Write(ES_ID);
1.97 + mControl->WriteBits(streamDependenceFlag.to_ulong(), streamDependenceFlag.size());
1.98 + mControl->WriteBits(URL_Flag.to_ulong(), URL_Flag.size());
1.99 + mControl->WriteBits(reserved.to_ulong(), reserved.size());
1.100 + mControl->WriteBits(streamPriority.to_ulong(), streamPriority.size());
1.101 + mControl->Write(DecodeSpecificInfo.Elements(), DecodeSpecificInfo.Length());
1.102 +
1.103 + return NS_OK;
1.104 +}
1.105 +
1.106 +nsresult
1.107 +ES_Descriptor::Generate(uint32_t* aBoxSize)
1.108 +{
1.109 + nsresult rv;
1.110 + // 14496-1 '8.3.4 DecoderConfigDescriptor'
1.111 + // 14496-1 '10.2.3 SL Packet Header Configuration'
1.112 + FragmentBuffer* frag = mControl->GetFragment(Audio_Track);
1.113 + rv = frag->GetCSD(DecodeSpecificInfo);
1.114 + NS_ENSURE_SUCCESS(rv, rv);
1.115 +
1.116 + length = sizeof(ES_ID) + 1;
1.117 + length += DecodeSpecificInfo.Length();
1.118 +
1.119 + *aBoxSize = sizeof(tag) + sizeof(length) + length;
1.120 + return NS_OK;
1.121 +}
1.122 +
1.123 +ES_Descriptor::ES_Descriptor(ISOControl* aControl)
1.124 + : tag(ESDescrTag)
1.125 + , length(0)
1.126 + , ES_ID(0)
1.127 + , streamDependenceFlag(0)
1.128 + , URL_Flag(0)
1.129 + , reserved(0)
1.130 + , streamPriority(0)
1.131 + , mControl(aControl)
1.132 +{
1.133 + MOZ_COUNT_CTOR(ES_Descriptor);
1.134 +}
1.135 +
1.136 +ES_Descriptor::~ES_Descriptor()
1.137 +{
1.138 + MOZ_COUNT_DTOR(ES_Descriptor);
1.139 +}
1.140 +
1.141 +}
