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);
+}
+
+}