Remove other gonk widget conditionals and unused files.

Tag #288.

17 files changed, 0 insertions, 4182 deletions

diff --git a/dom/media/encoder/fmp4_muxer/AMRBox.cpp b/dom/media/encoder/fmp4_muxer/AMRBox.cpp
deleted file mode 100644
index cd1a34fae..000000000
--- a/dom/media/encoder/fmp4_muxer/AMRBox.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-/* -*- 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 "ISOControl.h"
-#include "ISOMediaBoxes.h"
-#include "AMRBox.h"
-#include "ISOTrackMetadata.h"
-
-namespace mozilla {
-
-nsresult
-AMRSampleEntry::Generate(uint32_t* aBoxSize)
-{
-  uint32_t box_size;
-  nsresult rv = amr_special_box->Generate(&box_size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  size += box_size;
-
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-AMRSampleEntry::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  nsresult rv;
-  rv = AudioSampleEntry::Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-  rv = amr_special_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  return NS_OK;
-}
-
-AMRSampleEntry::AMRSampleEntry(ISOControl* aControl)
-  : AudioSampleEntry(NS_LITERAL_CSTRING("samr"), aControl)
-{
-  amr_special_box = new AMRSpecificBox(aControl);
-  MOZ_COUNT_CTOR(AMRSampleEntry);
-}
-
-AMRSampleEntry::~AMRSampleEntry()
-{
-  MOZ_COUNT_DTOR(AMRSampleEntry);
-}
-
-nsresult
-AMRSpecificBox::Generate(uint32_t* aBoxSize)
-{
-  nsresult rv;
-  FragmentBuffer* frag = mControl->GetFragment(Audio_Track);
-  rv = frag->GetCSD(amrDecSpecInfo);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  size += amrDecSpecInfo.Length();
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-AMRSpecificBox::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  Box::Write();
-  mControl->Write(amrDecSpecInfo.Elements(), amrDecSpecInfo.Length());
-  return NS_OK;
-}
-
-AMRSpecificBox::AMRSpecificBox(ISOControl* aControl)
-  : Box(NS_LITERAL_CSTRING("damr"), aControl)
-{
-  MOZ_COUNT_CTOR(AMRSpecificBox);
-}
-
-AMRSpecificBox::~AMRSpecificBox()
-{
-  MOZ_COUNT_DTOR(AMRSpecificBox);
-}
-
-}
diff --git a/dom/media/encoder/fmp4_muxer/AMRBox.h b/dom/media/encoder/fmp4_muxer/AMRBox.h
deleted file mode 100644
index 645d7f89c..000000000
--- a/dom/media/encoder/fmp4_muxer/AMRBox.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* -*- 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/. */
-
-#ifndef AMRBOX_h_
-#define AMRBOX_h_
-
-#include "nsTArray.h"
-#include "MuxerOperation.h"
-
-namespace mozilla {
-
-class ISOControl;
-
-// 3GPP TS 26.244 6.7 'AMRSpecificBox field for AMRSampleEntry box'
-// Box type: 'damr'
-class AMRSpecificBox : public Box {
-public:
-  // 3GPP members
-  nsTArray<uint8_t> amrDecSpecInfo;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // AMRSpecificBox methods
-  AMRSpecificBox(ISOControl* aControl);
-  ~AMRSpecificBox();
-};
-
-// 3GPP TS 26.244 6.5 'AMRSampleEntry box'
-// Box type: 'sawb'
-class AMRSampleEntry : public AudioSampleEntry {
-public:
-  // 3GPP members
-  RefPtr<AMRSpecificBox> amr_special_box;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // AMRSampleEntry methods
-  AMRSampleEntry(ISOControl* aControl);
-  ~AMRSampleEntry();
-};
-
-}
-
-#endif // AMRBOX_h_
diff --git a/dom/media/encoder/fmp4_muxer/AVCBox.cpp b/dom/media/encoder/fmp4_muxer/AVCBox.cpp
deleted file mode 100644
index a45cda8b7..000000000
--- a/dom/media/encoder/fmp4_muxer/AVCBox.cpp
+++ /dev/null
@@ -1,87 +0,0 @@
-/* -*- 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 "AVCBox.h"
-
-namespace mozilla {
-
-nsresult
-AVCSampleEntry::Generate(uint32_t* aBoxSize)
-{
-  uint32_t avc_box_size = 0;
-  nsresult rv;
-  rv = avcConfigBox->Generate(&avc_box_size);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  size += avc_box_size;
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-AVCSampleEntry::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  nsresult rv;
-  rv = VisualSampleEntry::Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-  rv = avcConfigBox->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  return NS_OK;
-}
-
-AVCSampleEntry::AVCSampleEntry(ISOControl* aControl)
-  : VisualSampleEntry(NS_LITERAL_CSTRING("avc1"), aControl)
-{
-  avcConfigBox = new AVCConfigurationBox(aControl);
-  MOZ_COUNT_CTOR(AVCSampleEntry);
-}
-
-AVCSampleEntry::~AVCSampleEntry()
-{
-  MOZ_COUNT_DTOR(AVCSampleEntry);
-}
-
-AVCConfigurationBox::AVCConfigurationBox(ISOControl* aControl)
-  : Box(NS_LITERAL_CSTRING("avcC"), aControl)
-{
-  MOZ_COUNT_CTOR(AVCConfigurationBox);
-}
-
-AVCConfigurationBox::~AVCConfigurationBox()
-{
-  MOZ_COUNT_DTOR(AVCConfigurationBox);
-}
-
-nsresult
-AVCConfigurationBox::Generate(uint32_t* aBoxSize)
-{
-  nsresult rv;
-  FragmentBuffer* frag = mControl->GetFragment(Video_Track);
-  rv = frag->GetCSD(avcConfig);
-  NS_ENSURE_SUCCESS(rv, rv);
-  size += avcConfig.Length();
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-AVCConfigurationBox::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  Box::Write();
-
-  mControl->Write(avcConfig.Elements(), avcConfig.Length());
-
-  return NS_OK;
-}
-
-}
diff --git a/dom/media/encoder/fmp4_muxer/AVCBox.h b/dom/media/encoder/fmp4_muxer/AVCBox.h
deleted file mode 100644
index 9640d9e8f..000000000
--- a/dom/media/encoder/fmp4_muxer/AVCBox.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* -*- 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/. */
-
-#ifndef AVCBox_h_
-#define AVCBox_h_
-
-#include "nsTArray.h"
-#include "ISOMediaBoxes.h"
-
-namespace mozilla {
-
-class ISOControl;
-
-// 14496-12 8.5.2.2
-#define resolution_72_dpi 0x00480000
-#define video_depth 0x0018
-
-// 14496-15 5.3.4.1 'Sample description name and format'
-// Box type: 'avcC'
-class AVCConfigurationBox : public Box {
-public:
-  // ISO BMFF members
-
-  // avcConfig is CodecSpecificData from 14496-15 '5.3.4.1 Sample description
-  // name and format.
-  // These data are generated by encoder and we encapsulated the generated
-  // bitstream into box directly.
-  nsTArray<uint8_t> avcConfig;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // AVCConfigurationBox methods
-  AVCConfigurationBox(ISOControl* aControl);
-  ~AVCConfigurationBox();
-};
-
-// 14496-15 5.3.4.1 'Sample description name and format'
-// Box type: 'avc1'
-class AVCSampleEntry : public VisualSampleEntry {
-public:
-  // ISO BMFF members
-  RefPtr<AVCConfigurationBox> avcConfigBox;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // VisualSampleEntry methods
-  AVCSampleEntry(ISOControl* aControl);
-  ~AVCSampleEntry();
-};
-
-}
-
-#endif // AVCBox_h_
diff --git a/dom/media/encoder/fmp4_muxer/EVRCBox.cpp b/dom/media/encoder/fmp4_muxer/EVRCBox.cpp
deleted file mode 100644
index 096e4013d..000000000
--- a/dom/media/encoder/fmp4_muxer/EVRCBox.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-/* -*- 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 "ISOControl.h"
-#include "ISOMediaBoxes.h"
-#include "EVRCBox.h"
-#include "ISOTrackMetadata.h"
-
-namespace mozilla {
-
-nsresult
-EVRCSampleEntry::Generate(uint32_t* aBoxSize)
-{
-  uint32_t box_size;
-  nsresult rv = evrc_special_box->Generate(&box_size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  size += box_size;
-
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-EVRCSampleEntry::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  nsresult rv;
-  rv = AudioSampleEntry::Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-  rv = evrc_special_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  return NS_OK;
-}
-
-EVRCSampleEntry::EVRCSampleEntry(ISOControl* aControl)
-  : AudioSampleEntry(NS_LITERAL_CSTRING("sevc"), aControl)
-{
-  evrc_special_box = new EVRCSpecificBox(aControl);
-  MOZ_COUNT_CTOR(EVRCSampleEntry);
-}
-
-EVRCSampleEntry::~EVRCSampleEntry()
-{
-  MOZ_COUNT_DTOR(EVRCSampleEntry);
-}
-
-nsresult
-EVRCSpecificBox::Generate(uint32_t* aBoxSize)
-{
-  nsresult rv;
-  FragmentBuffer* frag = mControl->GetFragment(Audio_Track);
-  rv = frag->GetCSD(evrcDecSpecInfo);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  size += evrcDecSpecInfo.Length();
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-EVRCSpecificBox::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  Box::Write();
-  mControl->Write(evrcDecSpecInfo.Elements(), evrcDecSpecInfo.Length());
-  return NS_OK;
-}
-
-EVRCSpecificBox::EVRCSpecificBox(ISOControl* aControl)
-  : Box(NS_LITERAL_CSTRING("devc"), aControl)
-{
-  MOZ_COUNT_CTOR(EVRCSpecificBox);
-}
-
-EVRCSpecificBox::~EVRCSpecificBox()
-{
-  MOZ_COUNT_DTOR(EVRCSpecificBox);
-}
-
-}
diff --git a/dom/media/encoder/fmp4_muxer/EVRCBox.h b/dom/media/encoder/fmp4_muxer/EVRCBox.h
deleted file mode 100644
index 31355849a..000000000
--- a/dom/media/encoder/fmp4_muxer/EVRCBox.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* -*- 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/. */
-
-#ifndef EVRCBOX_h_
-#define EVRCBOX_h_
-
-#include "nsTArray.h"
-#include "MuxerOperation.h"
-
-namespace mozilla {
-
-class ISOControl;
-
-// 3GPP TS 26.244 6.7 'EVRCSpecificBox field for EVRCSampleEntry box'
-// Box type: 'devc'
-class EVRCSpecificBox : public Box {
-public:
-  // 3GPP members
-  nsTArray<uint8_t> evrcDecSpecInfo;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // EVRCSpecificBox methods
-  EVRCSpecificBox(ISOControl* aControl);
-  ~EVRCSpecificBox();
-};
-
-// 3GPP TS 26.244 6.5 'EVRCSampleEntry box'
-// Box type: 'sevc'
-class EVRCSampleEntry : public AudioSampleEntry {
-public:
-  // 3GPP members
-  RefPtr<EVRCSpecificBox> evrc_special_box;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // EVRCSampleEntry methods
-  EVRCSampleEntry(ISOControl* aControl);
-  ~EVRCSampleEntry();
-};
-
-}
-
-#endif // EVRCBOX_h_
diff --git a/dom/media/encoder/fmp4_muxer/ISOControl.cpp b/dom/media/encoder/fmp4_muxer/ISOControl.cpp
deleted file mode 100644
index 6addaeb30..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOControl.cpp
+++ /dev/null
@@ -1,415 +0,0 @@
-/* -*- 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 <time.h>
-#include "nsAutoPtr.h"
-#include "ISOControl.h"
-#include "ISOMediaBoxes.h"
-#include "EncodedFrameContainer.h"
-
-namespace mozilla {
-
-// For MP4 creation_time and modification_time offset from January 1, 1904 to
-// January 1, 1970.
-#define iso_time_offset 2082844800
-
-FragmentBuffer::FragmentBuffer(uint32_t aTrackType, uint32_t aFragDuration)
-  : mTrackType(aTrackType)
-  , mFragDuration(aFragDuration)
-  , mMediaStartTime(0)
-  , mFragmentNumber(0)
-  , mLastFrameTimeOfLastFragment(0)
-  , mEOS(false)
-{
-  mFragArray.AppendElement();
-  MOZ_COUNT_CTOR(FragmentBuffer);
-}
-
-FragmentBuffer::~FragmentBuffer()
-{
-  MOZ_COUNT_DTOR(FragmentBuffer);
-}
-
-bool
-FragmentBuffer::HasEnoughData()
-{
-  // Audio or video frame is enough to form a moof.
-  return (mFragArray.Length() > 1);
-}
-
-nsresult
-FragmentBuffer::GetCSD(nsTArray<uint8_t>& aCSD)
-{
-  if (!mCSDFrame) {
-    return NS_ERROR_FAILURE;
-  }
-  aCSD.AppendElements(mCSDFrame->GetFrameData().Elements(),
-                      mCSDFrame->GetFrameData().Length());
-
-  return NS_OK;
-}
-
-nsresult
-FragmentBuffer::AddFrame(EncodedFrame* aFrame)
-{
-  // already EOS, it rejects all new data.
-  if (mEOS) {
-    MOZ_ASSERT(0);
-    return NS_OK;
-  }
-
-  EncodedFrame::FrameType type = aFrame->GetFrameType();
-  if (type == EncodedFrame::AAC_CSD || type == EncodedFrame::AVC_CSD ||
-      type == EncodedFrame::AMR_AUDIO_CSD || type == EncodedFrame::EVRC_AUDIO_CSD) {
-    mCSDFrame = aFrame;
-    // Use CSD's timestamp as the start time. Encoder should send CSD frame first
-    // and then data frames.
-    mMediaStartTime = aFrame->GetTimeStamp();
-    mFragmentNumber = 1;
-    return NS_OK;
-  }
-
-  // if the timestamp is incorrect, abort it.
-  if (aFrame->GetTimeStamp() < mMediaStartTime) {
-    MOZ_ASSERT(false);
-    return NS_ERROR_FAILURE;
-  }
-
-  mFragArray.LastElement().AppendElement(aFrame);
-
-  // check if current fragment is reach the fragment duration.
-  if ((aFrame->GetTimeStamp() - mMediaStartTime) >= (mFragDuration * mFragmentNumber)) {
-    mFragArray.AppendElement();
-    mFragmentNumber++;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-FragmentBuffer::GetFirstFragment(nsTArray<RefPtr<EncodedFrame>>& aFragment,
-                                 bool aFlush)
-{
-  // It should be called only if there is a complete fragment in mFragArray.
-  if (mFragArray.Length() <= 1 && !mEOS) {
-    MOZ_ASSERT(false);
-    return NS_ERROR_FAILURE;
-  }
-
-  if (aFlush) {
-    aFragment.SwapElements(mFragArray.ElementAt(0));
-    mFragArray.RemoveElementAt(0);
-  } else {
-    aFragment.AppendElements(mFragArray.ElementAt(0));
-  }
-  return NS_OK;
-}
-
-uint32_t
-FragmentBuffer::GetFirstFragmentSampleNumber()
-{
-  return mFragArray.ElementAt(0).Length();
-}
-
-uint32_t
-FragmentBuffer::GetFirstFragmentSampleSize()
-{
-  uint32_t size = 0;
-  uint32_t len = mFragArray.ElementAt(0).Length();
-  for (uint32_t i = 0; i < len; i++) {
-    size += mFragArray.ElementAt(0).ElementAt(i)->GetFrameData().Length();
-  }
-  return size;
-}
-
-ISOControl::ISOControl(uint32_t aMuxingType)
-  : mMuxingType(aMuxingType)
-  , mAudioFragmentBuffer(nullptr)
-  , mVideoFragmentBuffer(nullptr)
-  , mFragNum(0)
-  , mOutputSize(0)
-  , mBitCount(0)
-  , mBit(0)
-{
-  // Create a data array for first mp4 Box, ftyp.
-  mOutBuffers.SetLength(1);
-  MOZ_COUNT_CTOR(ISOControl);
-}
-
-ISOControl::~ISOControl()
-{
-  MOZ_COUNT_DTOR(ISOControl);
-}
-
-uint32_t
-ISOControl::GetNextTrackID()
-{
-  return (mMetaArray.Length() + 1);
-}
-
-uint32_t
-ISOControl::GetTrackID(TrackMetadataBase::MetadataKind aKind)
-{
-  for (uint32_t i = 0; i < mMetaArray.Length(); i++) {
-    if (mMetaArray[i]->GetKind() == aKind) {
-      return (i + 1);
-    }
-  }
-
-  // Track ID shouldn't be 0. It must be something wrong here.
-  MOZ_ASSERT(0);
-  return 0;
-}
-
-nsresult
-ISOControl::SetMetadata(TrackMetadataBase* aTrackMeta)
-{
-  if (aTrackMeta->GetKind() == TrackMetadataBase::METADATA_AAC ||
-      aTrackMeta->GetKind() == TrackMetadataBase::METADATA_AMR ||
-      aTrackMeta->GetKind() == TrackMetadataBase::METADATA_AVC ||
-      aTrackMeta->GetKind() == TrackMetadataBase::METADATA_EVRC) {
-    mMetaArray.AppendElement(aTrackMeta);
-    return NS_OK;
-  }
-  return NS_ERROR_FAILURE;
-}
-
-nsresult
-ISOControl::GetAudioMetadata(RefPtr<AudioTrackMetadata>& aAudMeta)
-{
-  for (uint32_t i = 0; i < mMetaArray.Length() ; i++) {
-    if (mMetaArray[i]->GetKind() == TrackMetadataBase::METADATA_AAC ||
-        mMetaArray[i]->GetKind() == TrackMetadataBase::METADATA_AMR ||
-        mMetaArray[i]->GetKind() == TrackMetadataBase::METADATA_EVRC) {
-      aAudMeta = static_cast<AudioTrackMetadata*>(mMetaArray[i].get());
-      return NS_OK;
-    }
-  }
-  return NS_ERROR_FAILURE;
-}
-
-nsresult
-ISOControl::GetVideoMetadata(RefPtr<VideoTrackMetadata>& aVidMeta)
-{
-  for (uint32_t i = 0; i < mMetaArray.Length() ; i++) {
-    if (mMetaArray[i]->GetKind() == TrackMetadataBase::METADATA_AVC) {
-      aVidMeta = static_cast<VideoTrackMetadata*>(mMetaArray[i].get());
-      return NS_OK;
-    }
-  }
-  return NS_ERROR_FAILURE;
-}
-
-bool
-ISOControl::HasAudioTrack()
-{
-  RefPtr<AudioTrackMetadata> audMeta;
-  GetAudioMetadata(audMeta);
-  return audMeta;
-}
-
-bool
-ISOControl::HasVideoTrack()
-{
-  RefPtr<VideoTrackMetadata> vidMeta;
-  GetVideoMetadata(vidMeta);
-  return vidMeta;
-}
-
-nsresult
-ISOControl::SetFragment(FragmentBuffer* aFragment)
-{
-  if (aFragment->GetType() == Audio_Track) {
-    mAudioFragmentBuffer = aFragment;
-  } else {
-    mVideoFragmentBuffer = aFragment;
-  }
-  return NS_OK;
-}
-
-FragmentBuffer*
-ISOControl::GetFragment(uint32_t aType)
-{
-  if (aType == Audio_Track) {
-    return mAudioFragmentBuffer;
-  } else if (aType == Video_Track){
-    return mVideoFragmentBuffer;
-  }
-  MOZ_ASSERT(0);
-  return nullptr;
-}
-
-nsresult
-ISOControl::GetBufs(nsTArray<nsTArray<uint8_t>>* aOutputBufs)
-{
-  uint32_t len = mOutBuffers.Length();
-  for (uint32_t i = 0; i < len; i++) {
-    mOutBuffers[i].SwapElements(*aOutputBufs->AppendElement());
-  }
-  return FlushBuf();
-}
-
-nsresult
-ISOControl::FlushBuf()
-{
-  mOutBuffers.SetLength(1);
-  return NS_OK;
-}
-
-uint32_t
-ISOControl::WriteAVData(nsTArray<uint8_t>& aArray)
-{
-  MOZ_ASSERT(!mBitCount);
-
-  uint32_t len = aArray.Length();
-  if (!len) {
-    return 0;
-  }
-
-  mOutputSize += len;
-
-  // The last element already has data, allocated a new element for pointer
-  // swapping.
-  if (mOutBuffers.LastElement().Length()) {
-    mOutBuffers.AppendElement();
-  }
-  // Swap the video/audio data pointer.
-  mOutBuffers.LastElement().SwapElements(aArray);
-  // Following data could be boxes, so appending a new uint8_t array here.
-  mOutBuffers.AppendElement();
-
-  return len;
-}
-
-uint32_t
-ISOControl::WriteBits(uint64_t aBits, size_t aNumBits)
-{
-  uint8_t output_byte = 0;
-
-  MOZ_ASSERT(aNumBits <= 64);
-  // TODO: rewritten following with bitset?
-  for (size_t i = aNumBits; i > 0; i--) {
-    mBit |= (((aBits >> (i - 1)) & 1) << (8 - ++mBitCount));
-    if (mBitCount == 8) {
-      Write(&mBit, sizeof(uint8_t));
-      mBit = 0;
-      mBitCount = 0;
-      output_byte++;
-    }
-  }
-  return output_byte;
-}
-
-uint32_t
-ISOControl::Write(uint8_t* aBuf, uint32_t aSize)
-{
-  mOutBuffers.LastElement().AppendElements(aBuf, aSize);
-  mOutputSize += aSize;
-  return aSize;
-}
-
-uint32_t
-ISOControl::Write(uint8_t aData)
-{
-  MOZ_ASSERT(!mBitCount);
-  Write((uint8_t*)&aData, sizeof(uint8_t));
-  return sizeof(uint8_t);
-}
-
-uint32_t
-ISOControl::GetBufPos()
-{
-  uint32_t len = mOutBuffers.Length();
-  uint32_t pos = 0;
-  for (uint32_t i = 0; i < len; i++) {
-    pos += mOutBuffers.ElementAt(i).Length();
-  }
-  return pos;
-}
-
-uint32_t
-ISOControl::WriteFourCC(const char* aType)
-{
-  // Bit operation should be aligned to byte before writing any byte data.
-  MOZ_ASSERT(!mBitCount);
-
-  uint32_t size = strlen(aType);
-  if (size == 4) {
-    return Write((uint8_t*)aType, size);
-  }
-
-  return 0;
-}
-
-nsresult
-ISOControl::GenerateFtyp()
-{
-  nsresult rv;
-  uint32_t size;
-  nsAutoPtr<FileTypeBox> type_box(new FileTypeBox(this));
-  rv = type_box->Generate(&size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  rv = type_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-  return NS_OK;
-}
-
-nsresult
-ISOControl::GenerateMoov()
-{
-  nsresult rv;
-  uint32_t size;
-  nsAutoPtr<MovieBox> moov_box(new MovieBox(this));
-  rv = moov_box->Generate(&size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  rv = moov_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-  return NS_OK;
-}
-
-nsresult
-ISOControl::GenerateMoof(uint32_t aTrackType)
-{
-  mFragNum++;
-
-  nsresult rv;
-  uint32_t size;
-  uint64_t first_sample_offset = mOutputSize;
-  nsAutoPtr<MovieFragmentBox> moof_box(new MovieFragmentBox(aTrackType, this));
-  nsAutoPtr<MediaDataBox> mdat_box(new MediaDataBox(aTrackType, this));
-
-  rv = moof_box->Generate(&size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  first_sample_offset += size;
-  rv = mdat_box->Generate(&size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  first_sample_offset += mdat_box->FirstSampleOffsetInMediaDataBox();
-
-  // correct offset info
-  nsTArray<RefPtr<MuxerOperation>> tfhds;
-  rv = moof_box->Find(NS_LITERAL_CSTRING("tfhd"), tfhds);
-  NS_ENSURE_SUCCESS(rv, rv);
-  uint32_t len = tfhds.Length();
-  for (uint32_t i = 0; i < len; i++) {
-    TrackFragmentHeaderBox* tfhd = (TrackFragmentHeaderBox*) tfhds.ElementAt(i).get();
-    rv = tfhd->UpdateBaseDataOffset(first_sample_offset);
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
-
-  rv = moof_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-  rv = mdat_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  return NS_OK;
-}
-
-uint32_t
-ISOControl::GetTime()
-{
-  return (uint64_t)time(nullptr) + iso_time_offset;
-}
-
-}
diff --git a/dom/media/encoder/fmp4_muxer/ISOControl.h b/dom/media/encoder/fmp4_muxer/ISOControl.h
deleted file mode 100644
index 3c445caee..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOControl.h
+++ /dev/null
@@ -1,250 +0,0 @@
-/* -*- 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/. */
-
-#ifndef ISOCOMPOSITOR_H_
-#define ISOCOMPOSITOR_H_
-
-#include "mozilla/EndianUtils.h"
-#include "nsTArray.h"
-#include "ISOTrackMetadata.h"
-#include "EncodedFrameContainer.h"
-
-namespace mozilla {
-
-class Box;
-class ISOControl;
-
-/**
- * This class collects elementary stream data to form a fragment.
- * ISOMediaWriter will check if the data is enough; if yes, the corresponding
- * moof will be created and write to ISOControl.
- * Each audio and video has its own fragment and only one during the whole
- * life cycle, when a fragment is formed in ISOControl, Flush() needs to
- * be called to reset it.
- */
-class FragmentBuffer {
-public:
-  // aTrackType: it could be Audio_Track or Video_Track.
-  // aFragDuration: it is the fragment duration. (microsecond per unit)
-  //                Audio and video have the same fragment duration.
-  FragmentBuffer(uint32_t aTrackType, uint32_t aFragDuration);
-  ~FragmentBuffer();
-
-  // Get samples of first fragment, that will swap all the elements in the
-  // mFragArray[0] when aFlush = true, and caller is responsible for drop
-  // EncodedFrame reference count.
-  nsresult GetFirstFragment(nsTArray<RefPtr<EncodedFrame>>& aFragment,
-                            bool aFlush = false);
-
-  // Add sample frame to the last element fragment of mFragArray. If sample
-  // number is enough, it will append a new fragment element. And the new
-  // sample will be added to the new fragment element of mFragArray.
-  nsresult AddFrame(EncodedFrame* aFrame);
-
-  // Get total sample size of first complete fragment size.
-  uint32_t GetFirstFragmentSampleSize();
-
-  // Get sample number of first complete fragment.
-  uint32_t GetFirstFragmentSampleNumber();
-
-  // Check if it accumulates enough frame data.
-  // It returns true when data is enough to form a fragment.
-  bool HasEnoughData();
-
-  // Called by ISOMediaWriter when TrackEncoder has sent the last frame. The
-  // remains frame data will form the last moof and move the state machine to
-  // in ISOMediaWriter to last phrase.
-  nsresult SetEndOfStream() {
-    mEOS = true;
-    return  NS_OK;
-  }
-  bool EOS() { return mEOS; }
-
-  // CSD (codec specific data), it is generated by encoder and the data depends
-  // on codec type. This data will be sent as a special frame from encoder to
-  // ISOMediaWriter and pass to this class via AddFrame().
-  nsresult GetCSD(nsTArray<uint8_t>& aCSD);
-
-  bool HasCSD() { return mCSDFrame; }
-
-  uint32_t GetType() { return mTrackType; }
-
-  void SetLastFragmentLastFrameTime(uint32_t aTime) {
-    mLastFrameTimeOfLastFragment = aTime;
-  }
-
-  uint32_t GetLastFragmentLastFrameTime() {
-    return mLastFrameTimeOfLastFragment;
-  }
-
-private:
-  uint32_t mTrackType;
-
-  // Fragment duration, microsecond per unit.
-  uint32_t mFragDuration;
-
-  // Media start time, microsecond per unit.
-  // Together with mFragDuration, mFragmentNumber and EncodedFrame->GetTimeStamp(),
-  // when the difference between current frame time and mMediaStartTime is
-  // exceeded current fragment ceiling timeframe, that means current fragment has
-  // enough data and a new element in mFragArray will be added.
-  uint64_t mMediaStartTime;
-
-  // Current fragment number. It will be increase when a new element of
-  // mFragArray is created.
-  // Note:
-  //   It only means the fragment number of current accumulated frames, not
-  //   the current 'creating' fragment mFragNum in ISOControl.
-  uint32_t mFragmentNumber;
-
-  // The last frame time stamp of last fragment. It is for calculating the
-  // play duration of first frame in current fragment. The frame duration is
-  // defined as "current frame timestamp - last frame timestamp" here. So it
-  // needs to keep the last timestamp of last fragment.
-  uint32_t mLastFrameTimeOfLastFragment;
-
-  // Array of fragments, each element has enough samples to form a
-  // complete fragment.
-  nsTArray<nsTArray<RefPtr<EncodedFrame>>> mFragArray;
-
-  // Codec specific data frame, it will be generated by encoder and send to
-  // ISOMediaWriter through WriteEncodedTrack(). The data will be vary depends
-  // on codec type.
-  RefPtr<EncodedFrame> mCSDFrame;
-
-  // END_OF_STREAM from ContainerWriter
-  bool mEOS;
-};
-
-/**
- * ISOControl will be carried to each box when box is created. It is the main
- * bridge for box to output stream to ContainerWriter and retrieve information.
- * ISOControl acts 3 different roles:
- * 1. Holds the pointer of audio metadata, video metadata, fragment and
- *    pass them to boxes.
- * 2. Provide the functions to generate the base structure of MP4; they are
- *    GenerateFtyp, GenerateMoov, GenerateMoof, and GenerateMfra.
- * 3. The actually writer used by MuxOperation::Write() in each box. It provides
- *    writing methods for different kind of data; they are Write, WriteArray,
- *    WriteBits...etc.
- */
-class ISOControl {
-
-friend class Box;
-
-public:
-  ISOControl(uint32_t aMuxingType);
-  ~ISOControl();
-
-  nsresult GenerateFtyp();
-  nsresult GenerateMoov();
-  nsresult GenerateMoof(uint32_t aTrackType);
-
-  // Swap elementary stream pointer to output buffers.
-  uint32_t WriteAVData(nsTArray<uint8_t>& aArray);
-
-  uint32_t Write(uint8_t* aBuf, uint32_t aSize);
-
-  uint32_t Write(uint8_t aData);
-
-  template <typename T>
-  uint32_t Write(T aData) {
-    MOZ_ASSERT(!mBitCount);
-
-    aData = NativeEndian::swapToNetworkOrder(aData);
-    Write((uint8_t*)&aData, sizeof(T));
-    return sizeof(T);
-  }
-
-  template <typename T>
-  uint32_t WriteArray(const T &aArray, uint32_t aSize) {
-    MOZ_ASSERT(!mBitCount);
-
-    uint32_t size = 0;
-    for (uint32_t i = 0; i < aSize; i++) {
-      size += Write(aArray[i]);
-    }
-    return size;
-  }
-
-  uint32_t WriteFourCC(const char* aType);
-
-  // Bit writing. Note: it needs to be byte-boundary before using
-  // others non-bit writing function.
-  uint32_t WriteBits(uint64_t aBits, size_t aNumBits);
-
-  // This is called by GetContainerData and swap all the buffers to aOutputBuffers.
-  nsresult GetBufs(nsTArray<nsTArray<uint8_t>>* aOutputBufs);
-
-  // Presentation time in seconds since midnight, Jan. 1, 1904, in UTC time.
-  uint32_t GetTime();
-
-  // current fragment number
-  uint32_t GetCurFragmentNumber() { return mFragNum; }
-
-  nsresult SetFragment(FragmentBuffer* aFragment);
-  FragmentBuffer* GetFragment(uint32_t aType);
-
-  uint32_t GetMuxingType() { return mMuxingType; }
-
-  nsresult SetMetadata(TrackMetadataBase* aTrackMeta);
-  nsresult GetAudioMetadata(RefPtr<AudioTrackMetadata>& aAudMeta);
-  nsresult GetVideoMetadata(RefPtr<VideoTrackMetadata>& aVidMeta);
-
-  // Track ID is the Metadata index in mMetaArray. It allows only 1 audio
-  // track and 1 video track in this muxer. In this muxer, it is prohibt to have
-  // mutiple audio track or video track in the same file.
-  uint32_t GetTrackID(TrackMetadataBase::MetadataKind aKind);
-  uint32_t GetNextTrackID();
-
-  bool HasAudioTrack();
-  bool HasVideoTrack();
-
-private:
-  uint32_t GetBufPos();
-  nsresult FlushBuf();
-
-  // One of value in TYPE_XXX, defined in ISOMediaWriter.
-  uint32_t mMuxingType;
-
-  // Audio and video fragments are owned by ISOMediaWriter.
-  // They don't need to worry about pointer going stale because ISOMediaWriter's
-  // lifetime is longer than ISOControl.
-  FragmentBuffer* mAudioFragmentBuffer;
-  FragmentBuffer* mVideoFragmentBuffer;
-
-  // Generated fragment number
-  uint32_t mFragNum;
-
-  // The (index + 1) will be the track ID.
-  nsTArray<RefPtr<TrackMetadataBase>> mMetaArray;
-
-  // Array of output buffers.
-  // To save memory usage, audio/video sample will be swapped into a new element
-  // of this array.
-  //
-  // For example,
-  //   mOutBuffers[0] --> boxes (allocated by muxer)
-  //   mOutBuffers[1] --> video raw data (allocated by encoder)
-  //   mOutBuffers[2] --> video raw data (allocated by encoder)
-  //   mOutBuffers[3] --> video raw data (allocated by encoder)
-  //   mOutBuffers[4] --> boxes (allocated by muxer)
-  //   mOutBuffers[5] --> audio raw data (allocated by encoder)
-  //   ...etc.
-  //
-  nsTArray<nsTArray<uint8_t>> mOutBuffers;
-
-  // Accumulate output size from Write().
-  uint64_t mOutputSize;
-
-  // Bit writing operation. Note: the mBitCount should be 0 before any
-  // byte-boundary writing method be called (Write(uint32_t), Write(uint16_t)...etc);
-  // otherwise, there will be assertion on these functions.
-  uint8_t mBitCount;
-  uint8_t mBit;
-};
-
-}
-#endif
diff --git a/dom/media/encoder/fmp4_muxer/ISOMediaBoxes.cpp b/dom/media/encoder/fmp4_muxer/ISOMediaBoxes.cpp
deleted file mode 100644
index 32a0c577b..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOMediaBoxes.cpp
+++ /dev/null
@@ -1,1550 +0,0 @@
-/* -*- 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 "TrackMetadataBase.h"
-#include "ISOMediaBoxes.h"
-#include "ISOControl.h"
-#include "ISOMediaWriter.h"
-#include "EncodedFrameContainer.h"
-#include "ISOTrackMetadata.h"
-#include "MP4ESDS.h"
-#include "AMRBox.h"
-#include "AVCBox.h"
-#include "EVRCBox.h"
-#include "VideoUtils.h"
-
-namespace mozilla {
-
-// 14496-12 6.2.2 'Data Types and fields'
-const uint32_t iso_matrix[] = { 0x00010000, 0,          0,
-                                0,          0x00010000, 0,
-                                0,          0,          0x40000000 };
-
-uint32_t
-set_sample_flags(bool aSync)
-{
-  std::bitset<32> flags;
-  flags.set(16, !aSync);
-  return flags.to_ulong();
-}
-
-Box::BoxSizeChecker::BoxSizeChecker(ISOControl* aControl, uint32_t aSize)
-{
-  mControl = aControl;
-  ori_size = mControl->GetBufPos();
-  box_size = aSize;
-  MOZ_COUNT_CTOR(BoxSizeChecker);
-}
-
-Box::BoxSizeChecker::~BoxSizeChecker()
-{
-  uint32_t cur_size = mControl->GetBufPos();
-  if ((cur_size - ori_size) != box_size) {
-    MOZ_ASSERT(false);
-  }
-
-  MOZ_COUNT_DTOR(BoxSizeChecker);
-}
-
-nsresult
-MediaDataBox::Generate(uint32_t* aBoxSize)
-{
-  mFirstSampleOffset = size;
-  mAllSampleSize = 0;
-
-  if (mTrackType & Audio_Track) {
-    FragmentBuffer* frag = mControl->GetFragment(Audio_Track);
-    mAllSampleSize += frag->GetFirstFragmentSampleSize();
-  }
-  if (mTrackType & Video_Track) {
-    FragmentBuffer* frag = mControl->GetFragment(Video_Track);
-    mAllSampleSize += frag->GetFirstFragmentSampleSize();
-  }
-
-  size += mAllSampleSize;
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-MediaDataBox::Write()
-{
-  nsresult rv;
-  BoxSizeChecker checker(mControl, size);
-  Box::Write();
-  nsTArray<uint32_t> types;
-  types.AppendElement(Audio_Track);
-  types.AppendElement(Video_Track);
-
-  for (uint32_t l = 0; l < types.Length(); l++) {
-    if (mTrackType & types[l]) {
-      FragmentBuffer* frag = mControl->GetFragment(types[l]);
-      nsTArray<RefPtr<EncodedFrame>> frames;
-
-      // Here is the last time we get fragment frames, flush it!
-      rv = frag->GetFirstFragment(frames, true);
-      NS_ENSURE_SUCCESS(rv, rv);
-
-      uint32_t len = frames.Length();
-      for (uint32_t i = 0; i < len; i++) {
-        nsTArray<uint8_t> frame_buffer;
-        frames.ElementAt(i)->SwapOutFrameData(frame_buffer);
-        mControl->WriteAVData(frame_buffer);
-      }
-    }
-  }
-
-  return NS_OK;
-}
-
-MediaDataBox::MediaDataBox(uint32_t aTrackType, ISOControl* aControl)
-  : Box(NS_LITERAL_CSTRING("mdat"), aControl)
-  , mAllSampleSize(0)
-  , mFirstSampleOffset(0)
-  , mTrackType(aTrackType)
-{
-  MOZ_COUNT_CTOR(MediaDataBox);
-}
-
-MediaDataBox::~MediaDataBox()
-{
-  MOZ_COUNT_DTOR(MediaDataBox);
-}
-
-uint32_t
-TrackRunBox::fillSampleTable()
-{
-  uint32_t table_size = 0;
-  nsresult rv;
-  nsTArray<RefPtr<EncodedFrame>> frames;
-  FragmentBuffer* frag = mControl->GetFragment(mTrackType);
-
-  rv = frag->GetFirstFragment(frames);
-  if (NS_FAILED(rv)) {
-    return 0;
-  }
-  uint32_t len = frames.Length();
-  sample_info_table = MakeUnique<tbl[]>(len);
-  // Create sample table according to 14496-12 8.8.8.2.
-  for (uint32_t i = 0; i < len; i++) {
-    // Sample size.
-    sample_info_table[i].sample_size = 0;
-    if (flags.to_ulong() & flags_sample_size_present) {
-      sample_info_table[i].sample_size = frames.ElementAt(i)->GetFrameData().Length();
-      mAllSampleSize += sample_info_table[i].sample_size;
-      table_size += sizeof(uint32_t);
-    }
-
-    // Sample flags.
-    sample_info_table[i].sample_flags = 0;
-    if (flags.to_ulong() & flags_sample_flags_present) {
-      sample_info_table[i].sample_flags =
-        set_sample_flags(
-          (frames.ElementAt(i)->GetFrameType() == EncodedFrame::AVC_I_FRAME));
-      table_size += sizeof(uint32_t);
-    }
-
-    // Sample duration.
-    sample_info_table[i].sample_duration = 0;
-    if (flags.to_ulong() & flags_sample_duration_present) {
-      // Calculate each frame's duration, it is decided by "current frame
-      // timestamp - last frame timestamp".
-      uint64_t frame_time = 0;
-      if (i == 0) {
-        frame_time = frames.ElementAt(i)->GetTimeStamp() -
-                     frag->GetLastFragmentLastFrameTime();
-      } else {
-        frame_time = frames.ElementAt(i)->GetTimeStamp() -
-                     frames.ElementAt(i - 1)->GetTimeStamp();
-        // Keep the last frame time of current fagment, it will be used to calculate
-        // the first frame duration of next fragment.
-        if ((len - 1) == i) {
-          frag->SetLastFragmentLastFrameTime(frames.ElementAt(i)->GetTimeStamp());
-        }
-      }
-
-      // In TrackRunBox, there should be exactly one type, either audio or video.
-      MOZ_ASSERT((mTrackType & Video_Track) ^ (mTrackType & Audio_Track));
-      sample_info_table[i].sample_duration = (mTrackType & Video_Track ?
-        frame_time * mVideoMeta->GetVideoClockRate() / USECS_PER_S :
-        frame_time * mAudioMeta->GetAudioSampleRate() / USECS_PER_S);
-
-      table_size += sizeof(uint32_t);
-    }
-
-    sample_info_table[i].sample_composition_time_offset = 0;
-  }
-  return table_size;
-}
-
-nsresult
-TrackRunBox::Generate(uint32_t* aBoxSize)
-{
-  FragmentBuffer* frag = mControl->GetFragment(mTrackType);
-  sample_count = frag->GetFirstFragmentSampleNumber();
-  size += sizeof(sample_count);
-
-  // data_offset needs to be updated if there is other
-  // TrackRunBox before this one.
-  if (flags.to_ulong() & flags_data_offset_present) {
-    data_offset = 0;
-    size += sizeof(data_offset);
-  }
-  size += fillSampleTable();
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-TrackRunBox::SetDataOffset(uint32_t aOffset)
-{
-  data_offset = aOffset;
-  return NS_OK;
-}
-
-nsresult
-TrackRunBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(sample_count);
-  if (flags.to_ulong() & flags_data_offset_present) {
-    mControl->Write(data_offset);
-  }
-  for (uint32_t i = 0; i < sample_count; i++) {
-    if (flags.to_ulong() & flags_sample_duration_present) {
-      mControl->Write(sample_info_table[i].sample_duration);
-    }
-    if (flags.to_ulong() & flags_sample_size_present) {
-      mControl->Write(sample_info_table[i].sample_size);
-    }
-    if (flags.to_ulong() & flags_sample_flags_present) {
-      mControl->Write(sample_info_table[i].sample_flags);
-    }
-  }
-
-  return NS_OK;
-}
-
-TrackRunBox::TrackRunBox(uint32_t aType, uint32_t aFlags, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("trun"), 0, aFlags, aControl)
-  , sample_count(0)
-  , data_offset(0)
-  , first_sample_flags(0)
-  , mAllSampleSize(0)
-  , mTrackType(aType)
-{
-  MOZ_COUNT_CTOR(TrackRunBox);
-}
-
-TrackRunBox::~TrackRunBox()
-{
-  MOZ_COUNT_DTOR(TrackRunBox);
-}
-
-nsresult
-TrackFragmentHeaderBox::UpdateBaseDataOffset(uint64_t aOffset)
-{
-  base_data_offset = aOffset;
-  return NS_OK;
-}
-
-nsresult
-TrackFragmentHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  track_ID = (mTrackType == Audio_Track ?
-                mControl->GetTrackID(mAudioMeta->GetKind()) :
-                mControl->GetTrackID(mVideoMeta->GetKind()));
-  size += sizeof(track_ID);
-
-  if (flags.to_ulong() & base_data_offset_present) {
-    // base_data_offset needs to add size of 'trun', 'tfhd' and
-    // header of 'mdat' later.
-    base_data_offset = 0;
-    size += sizeof(base_data_offset);
-  }
-  if (flags.to_ulong() & default_sample_duration_present) {
-    if (mTrackType == Video_Track) {
-      if (!mVideoMeta->GetVideoFrameRate()) {
-        // 0 means frame rate is variant, so it is wrong to write
-        // default_sample_duration.
-        MOZ_ASSERT(0);
-        default_sample_duration = 0;
-      } else {
-        default_sample_duration = mVideoMeta->GetVideoClockRate() / mVideoMeta->GetVideoFrameRate();
-      }
-    } else if (mTrackType == Audio_Track) {
-      default_sample_duration = mAudioMeta->GetAudioFrameDuration();
-    } else {
-      MOZ_ASSERT(0);
-      return NS_ERROR_FAILURE;
-    }
-    size += sizeof(default_sample_duration);
-  }
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-TrackFragmentHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(track_ID);
-  if (flags.to_ulong() & base_data_offset_present) {
-    mControl->Write(base_data_offset);
-  }
-  if (flags.to_ulong() & default_sample_duration_present) {
-    mControl->Write(default_sample_duration);
-  }
-  return NS_OK;
-}
-
-TrackFragmentHeaderBox::TrackFragmentHeaderBox(uint32_t aType,
-                                               uint32_t aFlags,
-                                               ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("tfhd"), 0, aFlags, aControl)
-  , track_ID(0)
-  , base_data_offset(0)
-  , default_sample_duration(0)
-{
-  mTrackType = aType;
-  MOZ_COUNT_CTOR(TrackFragmentHeaderBox);
-}
-
-TrackFragmentHeaderBox::~TrackFragmentHeaderBox()
-{
-  MOZ_COUNT_DTOR(TrackFragmentHeaderBox);
-}
-
-TrackFragmentBox::TrackFragmentBox(uint32_t aType, ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("traf"), aControl)
-  , mTrackType(aType)
-{
-  // Flags in TrackFragmentHeaderBox.
-  uint32_t tf_flags = base_data_offset_present;
-
-  // Ideally, audio encoder generates audio frame in const rate. However, some
-  // audio encoders don't do it so the audio frame duration needs to be checked
-  // here.
-  if ((mTrackType & Audio_Track) && mAudioMeta->GetAudioFrameDuration()) {
-    tf_flags |= default_sample_duration_present;
-  }
-
-  boxes.AppendElement(new TrackFragmentHeaderBox(aType, tf_flags, aControl));
-
-  // Always adds flags_data_offset_present in each TrackRunBox, Android
-  // parser requires this flag to calculate the correct bitstream offset.
-  uint32_t tr_flags = flags_sample_size_present | flags_data_offset_present;
-
-  // Flags in TrackRunBox.
-  // If there is no default sample duration exists, each frame duration needs to
-  // be recored in the TrackRunBox.
-  tr_flags |= (tf_flags & default_sample_duration_present ? 0 : flags_sample_duration_present);
-
-  // For video, add sample_flags to record I frame.
-  tr_flags |= (mTrackType & Video_Track ? flags_sample_flags_present : 0);
-
-  boxes.AppendElement(new TrackRunBox(mTrackType, tr_flags, aControl));
-  MOZ_COUNT_CTOR(TrackFragmentBox);
-}
-
-TrackFragmentBox::~TrackFragmentBox()
-{
-  MOZ_COUNT_DTOR(TrackFragmentBox);
-}
-
-nsresult
-MovieFragmentHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  sequence_number = mControl->GetCurFragmentNumber();
-  size += sizeof(sequence_number);
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-MovieFragmentHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(sequence_number);
-  return NS_OK;
-}
-
-MovieFragmentHeaderBox::MovieFragmentHeaderBox(uint32_t aTrackType,
-                                               ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("mfhd"), 0, 0, aControl)
-  , sequence_number(0)
-  , mTrackType(aTrackType)
-{
-  MOZ_COUNT_CTOR(MovieFragmentHeaderBox);
-}
-
-MovieFragmentHeaderBox::~MovieFragmentHeaderBox()
-{
-  MOZ_COUNT_DTOR(MovieFragmentHeaderBox);
-}
-
-MovieFragmentBox::MovieFragmentBox(uint32_t aType, ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("moof"), aControl)
-  , mTrackType(aType)
-{
-  boxes.AppendElement(new MovieFragmentHeaderBox(mTrackType, aControl));
-
-  if (mTrackType & Audio_Track) {
-    boxes.AppendElement(
-      new TrackFragmentBox(Audio_Track, aControl));
-  }
-  if (mTrackType & Video_Track) {
-    boxes.AppendElement(
-      new TrackFragmentBox(Video_Track, aControl));
-  }
-  MOZ_COUNT_CTOR(MovieFragmentBox);
-}
-
-MovieFragmentBox::~MovieFragmentBox()
-{
-  MOZ_COUNT_DTOR(MovieFragmentBox);
-}
-
-nsresult
-MovieFragmentBox::Generate(uint32_t* aBoxSize)
-{
-  nsresult rv = DefaultContainerImpl::Generate(aBoxSize);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  // Correct data_offset if there are both audio and video track in
-  // this fragment. This offset means the offset in the MediaDataBox.
-  if (mTrackType & (Audio_Track | Video_Track)) {
-    nsTArray<RefPtr<MuxerOperation>> truns;
-    rv = Find(NS_LITERAL_CSTRING("trun"), truns);
-    NS_ENSURE_SUCCESS(rv, rv);
-    uint32_t len = truns.Length();
-    uint32_t data_offset = 0;
-    for (uint32_t i = 0; i < len; i++) {
-      TrackRunBox* trun = (TrackRunBox*) truns.ElementAt(i).get();
-      rv = trun->SetDataOffset(data_offset);
-      NS_ENSURE_SUCCESS(rv, rv);
-      data_offset += trun->GetAllSampleSize();
-    }
-  }
-
-  return NS_OK;
-}
-
-nsresult
-TrackExtendsBox::Generate(uint32_t* aBoxSize)
-{
-  track_ID = (mTrackType == Audio_Track ?
-                mControl->GetTrackID(mAudioMeta->GetKind()) :
-                mControl->GetTrackID(mVideoMeta->GetKind()));
-
-  if (mTrackType == Audio_Track) {
-    default_sample_description_index = 1;
-    default_sample_duration = mAudioMeta->GetAudioFrameDuration();
-    default_sample_size = mAudioMeta->GetAudioFrameSize();
-    default_sample_flags = set_sample_flags(1);
-  } else if (mTrackType == Video_Track) {
-    default_sample_description_index = 1;
-    // Video meta data has assigned framerate, it implies that this video's
-    // frame rate should be fixed.
-    if (mVideoMeta->GetVideoFrameRate()) {
-      default_sample_duration =
-        mVideoMeta->GetVideoClockRate() / mVideoMeta->GetVideoFrameRate();
-    }
-    default_sample_size = 0;
-    default_sample_flags = set_sample_flags(0);
-  } else {
-    MOZ_ASSERT(0);
-    return NS_ERROR_FAILURE;
-  }
-
-  size += sizeof(track_ID) +
-          sizeof(default_sample_description_index) +
-          sizeof(default_sample_duration) +
-          sizeof(default_sample_size) +
-          sizeof(default_sample_flags);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-TrackExtendsBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(track_ID);
-  mControl->Write(default_sample_description_index);
-  mControl->Write(default_sample_duration);
-  mControl->Write(default_sample_size);
-  mControl->Write(default_sample_flags);
-
-  return NS_OK;
-}
-
-TrackExtendsBox::TrackExtendsBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("trex"), 0, 0, aControl)
-  , track_ID(0)
-  , default_sample_description_index(0)
-  , default_sample_duration(0)
-  , default_sample_size(0)
-  , default_sample_flags(0)
-  , mTrackType(aType)
-{
-  MOZ_COUNT_CTOR(TrackExtendsBox);
-}
-
-TrackExtendsBox::~TrackExtendsBox()
-{
-  MOZ_COUNT_DTOR(TrackExtendsBox);
-}
-
-MovieExtendsBox::MovieExtendsBox(ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("mvex"), aControl)
-{
-  if (mAudioMeta) {
-    boxes.AppendElement(new TrackExtendsBox(Audio_Track, aControl));
-  }
-  if (mVideoMeta) {
-    boxes.AppendElement(new TrackExtendsBox(Video_Track, aControl));
-  }
-  MOZ_COUNT_CTOR(MovieExtendsBox);
-}
-
-MovieExtendsBox::~MovieExtendsBox()
-{
-  MOZ_COUNT_DTOR(MovieExtendsBox);
-}
-
-nsresult
-ChunkOffsetBox::Generate(uint32_t* aBoxSize)
-{
-  // We don't need time to sample table in fragmented mp4.
-  entry_count = 0;
-  size += sizeof(entry_count);
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-ChunkOffsetBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(entry_count);
-  return NS_OK;
-}
-
-ChunkOffsetBox::ChunkOffsetBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("stco"), 0, 0, aControl)
-  , entry_count(0)
-{
-  MOZ_COUNT_CTOR(ChunkOffsetBox);
-}
-
-ChunkOffsetBox::~ChunkOffsetBox()
-{
-  MOZ_COUNT_DTOR(ChunkOffsetBox);
-}
-
-nsresult
-SampleToChunkBox::Generate(uint32_t* aBoxSize)
-{
-  // We don't need time to sample table in fragmented mp4
-  entry_count = 0;
-  size += sizeof(entry_count);
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-SampleToChunkBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(entry_count);
-  return NS_OK;
-}
-
-SampleToChunkBox::SampleToChunkBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("stsc"), 0, 0, aControl)
-  , entry_count(0)
-{
-  MOZ_COUNT_CTOR(SampleToChunkBox);
-}
-
-SampleToChunkBox::~SampleToChunkBox()
-{
-  MOZ_COUNT_DTOR(SampleToChunkBox);
-}
-
-nsresult
-TimeToSampleBox::Generate(uint32_t* aBoxSize)
-{
-  // We don't need time to sample table in fragmented mp4.
-  entry_count = 0;
-  size += sizeof(entry_count);
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-TimeToSampleBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(entry_count);
-  return NS_OK;
-}
-
-TimeToSampleBox::TimeToSampleBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("stts"), 0, 0, aControl)
-  , entry_count(0)
-{
-  MOZ_COUNT_CTOR(TimeToSampleBox);
-}
-
-TimeToSampleBox::~TimeToSampleBox()
-{
-  MOZ_COUNT_DTOR(TimeToSampleBox);
-}
-
-nsresult
-SampleDescriptionBox::Generate(uint32_t* aBoxSize)
-{
-  entry_count = 1;
-  size += sizeof(entry_count);
-
-  nsresult rv;
-  uint32_t box_size;
-  rv = sample_entry_box->Generate(&box_size);
-  NS_ENSURE_SUCCESS(rv, rv);
-  size += box_size;
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-SampleDescriptionBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  nsresult rv;
-  mControl->Write(entry_count);
-  rv = sample_entry_box->Write();
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  return NS_OK;
-}
-
-SampleDescriptionBox::SampleDescriptionBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("stsd"), 0, 0, aControl)
-  , entry_count(0)
-{
-  mTrackType = aType;
-
-  switch (mTrackType) {
-  case Audio_Track:
-    {
-      CreateAudioSampleEntry(sample_entry_box);
-    }
-    break;
-  case Video_Track:
-    {
-      CreateVideoSampleEntry(sample_entry_box);
-    }
-    break;
-  }
-  MOZ_ASSERT(sample_entry_box);
-  MOZ_COUNT_CTOR(SampleDescriptionBox);
-}
-
-nsresult
-SampleDescriptionBox::CreateAudioSampleEntry(RefPtr<SampleEntryBox>& aSampleEntry)
-{
-  if (mAudioMeta->GetKind() == TrackMetadataBase::METADATA_AMR) {
-    aSampleEntry = new AMRSampleEntry(mControl);
-  } else if (mAudioMeta->GetKind() == TrackMetadataBase::METADATA_AAC) {
-    aSampleEntry = new MP4AudioSampleEntry(mControl);
-  } else if (mAudioMeta->GetKind() == TrackMetadataBase::METADATA_EVRC) {
-    aSampleEntry = new EVRCSampleEntry(mControl);
-  } else {
-    MOZ_ASSERT(0);
-  }
-  return NS_OK;
-}
-
-nsresult
-SampleDescriptionBox::CreateVideoSampleEntry(RefPtr<SampleEntryBox>& aSampleEntry)
-{
-  if (mVideoMeta->GetKind() == TrackMetadataBase::METADATA_AVC) {
-    aSampleEntry = new AVCSampleEntry(mControl);
-  } else {
-    MOZ_ASSERT(0);
-  }
-  return NS_OK;
-}
-
-SampleDescriptionBox::~SampleDescriptionBox()
-{
-  MOZ_COUNT_DTOR(SampleDescriptionBox);
-}
-
-nsresult
-SampleSizeBox::Generate(uint32_t* aBoxSize)
-{
-  size += sizeof(sample_size) +
-          sizeof(sample_count);
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-SampleSizeBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(sample_size);
-  mControl->Write(sample_count);
-  return NS_OK;
-}
-
-SampleSizeBox::SampleSizeBox(ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("stsz"), 0, 0, aControl)
-  , sample_size(0)
-  , sample_count(0)
-{
-  MOZ_COUNT_CTOR(SampleSizeBox);
-}
-
-SampleSizeBox::~SampleSizeBox()
-{
-  MOZ_COUNT_DTOR(SampleSizeBox);
-}
-
-SampleTableBox::SampleTableBox(uint32_t aType, ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("stbl"), aControl)
-{
-  boxes.AppendElement(new SampleDescriptionBox(aType, aControl));
-  boxes.AppendElement(new TimeToSampleBox(aType, aControl));
-  boxes.AppendElement(new SampleToChunkBox(aType, aControl));
-  boxes.AppendElement(new SampleSizeBox(aControl));
-  boxes.AppendElement(new ChunkOffsetBox(aType, aControl));
-  MOZ_COUNT_CTOR(SampleTableBox);
-}
-
-SampleTableBox::~SampleTableBox()
-{
-  MOZ_COUNT_DTOR(SampleTableBox);
-}
-
-nsresult
-DataEntryUrlBox::Generate(uint32_t* aBoxSize)
-{
-  // location is null here, do nothing
-  size += location.Length();
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-DataEntryUrlBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  return NS_OK;
-}
-
-DataEntryUrlBox::DataEntryUrlBox()
-  : FullBox(NS_LITERAL_CSTRING("url "), 0, 0, (ISOControl*) nullptr)
-{
-  MOZ_COUNT_CTOR(DataEntryUrlBox);
-}
-
-DataEntryUrlBox::DataEntryUrlBox(ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("url "), 0, flags_media_at_the_same_file, aControl)
-{
-  MOZ_COUNT_CTOR(DataEntryUrlBox);
-}
-
-DataEntryUrlBox::DataEntryUrlBox(const DataEntryUrlBox& aBox)
-  : FullBox(aBox.boxType, aBox.version, aBox.flags.to_ulong(), aBox.mControl)
-{
-  location = aBox.location;
-  MOZ_COUNT_CTOR(DataEntryUrlBox);
-}
-
-DataEntryUrlBox::~DataEntryUrlBox()
-{
-  MOZ_COUNT_DTOR(DataEntryUrlBox);
-}
-
-nsresult DataReferenceBox::Generate(uint32_t* aBoxSize)
-{
-  entry_count = 1;  // only allow on entry here
-  size += sizeof(uint32_t);
-
-  for (uint32_t i = 0; i < entry_count; i++) {
-    uint32_t box_size = 0;
-    DataEntryUrlBox* url = new DataEntryUrlBox(mControl);
-    url->Generate(&box_size);
-    size += box_size;
-    urls.AppendElement(url);
-  }
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult DataReferenceBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(entry_count);
-
-  for (uint32_t i = 0; i < entry_count; i++) {
-    urls[i]->Write();
-  }
-
-  return NS_OK;
-}
-
-DataReferenceBox::DataReferenceBox(ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("dref"), 0, 0, aControl)
-  , entry_count(0)
-{
-  MOZ_COUNT_CTOR(DataReferenceBox);
-}
-
-DataReferenceBox::~DataReferenceBox()
-{
-  MOZ_COUNT_DTOR(DataReferenceBox);
-}
-
-DataInformationBox::DataInformationBox(ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("dinf"), aControl)
-{
-  boxes.AppendElement(new DataReferenceBox(aControl));
-  MOZ_COUNT_CTOR(DataInformationBox);
-}
-
-DataInformationBox::~DataInformationBox()
-{
-  MOZ_COUNT_DTOR(DataInformationBox);
-}
-
-nsresult
-VideoMediaHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  size += sizeof(graphicsmode) +
-          sizeof(opcolor);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-VideoMediaHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(graphicsmode);
-  mControl->WriteArray(opcolor, 3);
-  return NS_OK;
-}
-
-VideoMediaHeaderBox::VideoMediaHeaderBox(ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("vmhd"), 0, 1, aControl)
-  , graphicsmode(0)
-{
-  memset(opcolor, 0 , sizeof(opcolor));
-  MOZ_COUNT_CTOR(VideoMediaHeaderBox);
-}
-
-VideoMediaHeaderBox::~VideoMediaHeaderBox()
-{
-  MOZ_COUNT_DTOR(VideoMediaHeaderBox);
-}
-
-nsresult
-SoundMediaHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  balance = 0;
-  reserved = 0;
-  size += sizeof(balance) +
-          sizeof(reserved);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-SoundMediaHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(balance);
-  mControl->Write(reserved);
-
-  return NS_OK;
-}
-
-SoundMediaHeaderBox::SoundMediaHeaderBox(ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("smhd"), 0, 0, aControl)
-{
-  MOZ_COUNT_CTOR(SoundMediaHeaderBox);
-}
-
-SoundMediaHeaderBox::~SoundMediaHeaderBox()
-{
-  MOZ_COUNT_DTOR(SoundMediaHeaderBox);
-}
-
-MediaInformationBox::MediaInformationBox(uint32_t aType, ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("minf"), aControl)
-{
-  mTrackType = aType;
-
-  if (mTrackType == Audio_Track) {
-    boxes.AppendElement(new SoundMediaHeaderBox(aControl));
-  } else if (mTrackType == Video_Track) {
-    boxes.AppendElement(new VideoMediaHeaderBox(aControl));
-  } else {
-    MOZ_ASSERT(0);
-  }
-
-  boxes.AppendElement(new DataInformationBox(aControl));
-  boxes.AppendElement(new SampleTableBox(aType, aControl));
-  MOZ_COUNT_CTOR(MediaInformationBox);
-}
-
-MediaInformationBox::~MediaInformationBox()
-{
-  MOZ_COUNT_DTOR(MediaInformationBox);
-}
-
-nsresult
-HandlerBox::Generate(uint32_t* aBoxSize)
-{
-  pre_defined = 0;
-  if (mTrackType == Audio_Track) {
-    handler_type = FOURCC('s', 'o', 'u', 'n');
-  } else if (mTrackType == Video_Track) {
-    handler_type = FOURCC('v', 'i', 'd', 'e');
-  }
-
-  size += sizeof(pre_defined) +
-          sizeof(handler_type) +
-          sizeof(reserved);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-HandlerBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(pre_defined);
-  mControl->Write(handler_type);
-  mControl->WriteArray(reserved, 3);
-
-  return NS_OK;
-}
-
-HandlerBox::HandlerBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("hdlr"), 0, 0, aControl)
-  , pre_defined(0)
-  , handler_type(0)
-{
-  mTrackType = aType;
-  memset(reserved, 0 , sizeof(reserved));
-  MOZ_COUNT_CTOR(HandlerBox);
-}
-
-HandlerBox::~HandlerBox()
-{
-  MOZ_COUNT_DTOR(HandlerBox);
-}
-
-MediaHeaderBox::MediaHeaderBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("mdhd"), 0, 0, aControl)
-  , creation_time(0)
-  , modification_time(0)
-  , timescale(0)
-  , duration(0)
-  , pad(0)
-  , lang1(0)
-  , lang2(0)
-  , lang3(0)
-  , pre_defined(0)
-{
-  mTrackType = aType;
-  MOZ_COUNT_CTOR(MediaHeaderBox);
-}
-
-MediaHeaderBox::~MediaHeaderBox()
-{
-  MOZ_COUNT_DTOR(MediaHeaderBox);
-}
-
-uint32_t
-MediaHeaderBox::GetTimeScale()
-{
-  if (mTrackType == Audio_Track) {
-    return mAudioMeta->GetAudioSampleRate();
-  }
-
-  return mVideoMeta->GetVideoClockRate();
-}
-
-nsresult
-MediaHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  creation_time = mControl->GetTime();
-  modification_time = mControl->GetTime();
-  timescale = GetTimeScale();
-  duration = 0; // fragmented mp4
-
-  pad = 0;
-  lang1 = 'u' - 0x60; // "und" underdetermined language
-  lang2 = 'n' - 0x60;
-  lang3 = 'd' - 0x60;
-  size += (pad.size() + lang1.size() + lang2.size() + lang3.size()) / CHAR_BIT;
-
-  pre_defined = 0;
-  size += sizeof(creation_time) +
-          sizeof(modification_time) +
-          sizeof(timescale) +
-          sizeof(duration) +
-          sizeof(pre_defined);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-MediaHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(creation_time);
-  mControl->Write(modification_time);
-  mControl->Write(timescale);
-  mControl->Write(duration);
-  mControl->WriteBits(pad.to_ulong(), pad.size());
-  mControl->WriteBits(lang1.to_ulong(), lang1.size());
-  mControl->WriteBits(lang2.to_ulong(), lang2.size());
-  mControl->WriteBits(lang3.to_ulong(), lang3.size());
-  mControl->Write(pre_defined);
-
-  return NS_OK;
-}
-
-MovieBox::MovieBox(ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("moov"), aControl)
-{
-  boxes.AppendElement(new MovieHeaderBox(aControl));
-  if (aControl->HasAudioTrack()) {
-    boxes.AppendElement(new TrackBox(Audio_Track, aControl));
-  }
-  if (aControl->HasVideoTrack()) {
-    boxes.AppendElement(new TrackBox(Video_Track, aControl));
-  }
-  boxes.AppendElement(new MovieExtendsBox(aControl));
-  MOZ_COUNT_CTOR(MovieBox);
-}
-
-MovieBox::~MovieBox()
-{
-  MOZ_COUNT_DTOR(MovieBox);
-}
-
-nsresult
-MovieHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  creation_time = mControl->GetTime();
-  modification_time = mControl->GetTime();
-  timescale = GetTimeScale();
-  duration = 0;     // The duration is always 0 in fragmented mp4.
-  next_track_ID = mControl->GetNextTrackID();
-
-  size += sizeof(next_track_ID) +
-          sizeof(creation_time) +
-          sizeof(modification_time) +
-          sizeof(timescale) +
-          sizeof(duration) +
-          sizeof(rate) +
-          sizeof(volume) +
-          sizeof(reserved16) +
-          sizeof(reserved32) +
-          sizeof(matrix) +
-          sizeof(pre_defined);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-MovieHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(creation_time);
-  mControl->Write(modification_time);
-  mControl->Write(timescale);
-  mControl->Write(duration);
-  mControl->Write(rate);
-  mControl->Write(volume);
-  mControl->Write(reserved16);
-  mControl->WriteArray(reserved32, 2);
-  mControl->WriteArray(matrix, 9);
-  mControl->WriteArray(pre_defined, 6);
-  mControl->Write(next_track_ID);
-
-  return NS_OK;
-}
-
-uint32_t
-MovieHeaderBox::GetTimeScale()
-{
-  // Only audio track in container.
-  if (mAudioMeta && !mVideoMeta) {
-    return mAudioMeta->GetAudioSampleRate();
-  }
-
-  // return video rate
-  return mVideoMeta->GetVideoClockRate();
-}
-
-MovieHeaderBox::~MovieHeaderBox()
-{
-  MOZ_COUNT_DTOR(MovieHeaderBox);
-}
-
-MovieHeaderBox::MovieHeaderBox(ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("mvhd"), 0, 0, aControl)
-  , creation_time(0)
-  , modification_time(0)
-  , timescale(90000)
-  , duration(0)
-  , rate(0x00010000)
-  , volume(0x0100)
-  , reserved16(0)
-  , next_track_ID(1)
-{
-  memcpy(matrix, iso_matrix, sizeof(matrix));
-  memset(reserved32, 0, sizeof(reserved32));
-  memset(pre_defined, 0, sizeof(pre_defined));
-  MOZ_COUNT_CTOR(MovieHeaderBox);
-}
-
-TrackHeaderBox::TrackHeaderBox(uint32_t aType, ISOControl* aControl)
-  : FullBox(NS_LITERAL_CSTRING("tkhd"), 0,
-            flags_track_enabled | flags_track_in_movie | flags_track_in_preview,
-            aControl)
-  , creation_time(0)
-  , modification_time(0)
-  , track_ID(0)
-  , reserved(0)
-  , duration(0)
-  , layer(0)
-  , alternate_group(0)
-  , volume(0)
-  , reserved3(0)
-  , width(0)
-  , height(0)
-{
-  mTrackType = aType;
-  memcpy(matrix, iso_matrix, sizeof(matrix));
-  memset(reserved2, 0, sizeof(reserved2));
-  MOZ_COUNT_CTOR(TrackHeaderBox);
-}
-
-TrackHeaderBox::~TrackHeaderBox()
-{
-  MOZ_COUNT_DTOR(TrackHeaderBox);
-}
-
-nsresult
-TrackHeaderBox::Generate(uint32_t* aBoxSize)
-{
-  creation_time = mControl->GetTime();
-  modification_time = mControl->GetTime();
-  track_ID = (mTrackType == Audio_Track ?
-                mControl->GetTrackID(mAudioMeta->GetKind()) :
-                mControl->GetTrackID(mVideoMeta->GetKind()));
-  // fragmented mp4
-  duration = 0;
-
-  // volume, audiotrack is always 0x0100 in 14496-12 8.3.2.2
-  volume = (mTrackType == Audio_Track ? 0x0100 : 0);
-
-  if (mTrackType == Video_Track) {
-    width = mVideoMeta->GetVideoDisplayWidth() << 16;
-    height = mVideoMeta->GetVideoDisplayHeight() << 16;
-    // Check display size, using the pixel size if any of them is invalid.
-    if (!width || !height) {
-      width = mVideoMeta->GetVideoWidth() << 16;
-      height = mVideoMeta->GetVideoHeight() << 16;
-    }
-  }
-
-  size += sizeof(creation_time) +
-          sizeof(modification_time) +
-          sizeof(track_ID) +
-          sizeof(reserved) +
-          sizeof(duration) +
-          sizeof(reserved2) +
-          sizeof(layer) +
-          sizeof(alternate_group) +
-          sizeof(volume) +
-          sizeof(reserved3) +
-          sizeof(matrix) +
-          sizeof(width) +
-          sizeof(height);
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-TrackHeaderBox::Write()
-{
-  WRITE_FULLBOX(mControl, size)
-  mControl->Write(creation_time);
-  mControl->Write(modification_time);
-  mControl->Write(track_ID);
-  mControl->Write(reserved);
-  mControl->Write(duration);
-  mControl->WriteArray(reserved2, 2);
-  mControl->Write(layer);
-  mControl->Write(alternate_group);
-  mControl->Write(volume);
-  mControl->Write(reserved3);
-  mControl->WriteArray(matrix, 9);
-  mControl->Write(width);
-  mControl->Write(height);
-
-  return NS_OK;
-}
-
-nsresult
-FileTypeBox::Generate(uint32_t* aBoxSize)
-{
-  minor_version = 0;
-
-  if (mControl->GetMuxingType() == ISOMediaWriter::TYPE_FRAG_MP4) {
-    if (!mControl->HasVideoTrack() && mControl->HasAudioTrack()) {
-      major_brand = "M4A ";
-    } else {
-      major_brand = "MP42";
-    }
-    compatible_brands.AppendElement("mp42");
-    compatible_brands.AppendElement("isom");
-  } else if (mControl->GetMuxingType() == ISOMediaWriter::TYPE_FRAG_3GP) {
-    major_brand = "3gp9";
-    // According to 3GPP TS 26.244 V12.2.0, section 5.3.4, it's recommended to
-    // list all compatible brands here. 3GP spec supports fragment from '3gp6'.
-    compatible_brands.AppendElement("3gp9");
-    compatible_brands.AppendElement("3gp8");
-    compatible_brands.AppendElement("3gp7");
-    compatible_brands.AppendElement("3gp6");
-    compatible_brands.AppendElement("isom");
-  } else if (mControl->GetMuxingType() == ISOMediaWriter::TYPE_FRAG_3G2) {
-    major_brand = "3g2a";
-    // 3GPP2 Release 0 and A and 3GPP Release 6 allow movie fragmentation
-    compatible_brands.AppendElement("3gp9");
-    compatible_brands.AppendElement("3gp8");
-    compatible_brands.AppendElement("3gp7");
-    compatible_brands.AppendElement("3gp6");
-    compatible_brands.AppendElement("isom");
-    compatible_brands.AppendElement("3g2c");
-    compatible_brands.AppendElement("3g2b");
-    compatible_brands.AppendElement("3g2a");
-  } else {
-    MOZ_ASSERT(0);
-  }
-
-  size += major_brand.Length() +
-          sizeof(minor_version) +
-          compatible_brands.Length() * 4;
-
-  *aBoxSize = size;
-
-  return NS_OK;
-}
-
-nsresult
-FileTypeBox::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  Box::Write();
-  mControl->WriteFourCC(major_brand.get());
-  mControl->Write(minor_version);
-  uint32_t len = compatible_brands.Length();
-  for (uint32_t i = 0; i < len; i++) {
-    mControl->WriteFourCC(compatible_brands[i].get());
-  }
-
-  return NS_OK;
-}
-
-FileTypeBox::FileTypeBox(ISOControl* aControl)
-  : Box(NS_LITERAL_CSTRING("ftyp"), aControl)
-  , minor_version(0)
-{
-  MOZ_COUNT_CTOR(FileTypeBox);
-}
-
-FileTypeBox::~FileTypeBox()
-{
-  MOZ_COUNT_DTOR(FileTypeBox);
-}
-
-MediaBox::MediaBox(uint32_t aType, ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("mdia"), aControl)
-{
-  mTrackType = aType;
-  boxes.AppendElement(new MediaHeaderBox(aType, aControl));
-  boxes.AppendElement(new HandlerBox(aType, aControl));
-  boxes.AppendElement(new MediaInformationBox(aType, aControl));
-  MOZ_COUNT_CTOR(MediaBox);
-}
-
-MediaBox::~MediaBox()
-{
-  MOZ_COUNT_DTOR(MediaBox);
-}
-
-nsresult
-DefaultContainerImpl::Generate(uint32_t* aBoxSize)
-{
-  nsresult rv;
-  uint32_t box_size;
-  uint32_t len = boxes.Length();
-  for (uint32_t i = 0; i < len; i++) {
-    rv = boxes.ElementAt(i)->Generate(&box_size);
-    NS_ENSURE_SUCCESS(rv, rv);
-    size += box_size;
-  }
-  *aBoxSize = size;
-  return NS_OK;
-}
-
-nsresult
-DefaultContainerImpl::Find(const nsACString& aType,
-                           nsTArray<RefPtr<MuxerOperation>>& aOperations)
-{
-  nsresult rv = Box::Find(aType, aOperations);
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  uint32_t len = boxes.Length();
-  for (uint32_t i = 0; i < len; i++) {
-    rv = boxes.ElementAt(i)->Find(aType, aOperations);
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
-  return NS_OK;
-}
-
-nsresult
-DefaultContainerImpl::Write()
-{
-  BoxSizeChecker checker(mControl, size);
-  Box::Write();
-
-  nsresult rv;
-  uint32_t len = boxes.Length();
-  for (uint32_t i = 0; i < len; i++) {
-    rv = boxes.ElementAt(i)->Write();
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
-
-  return NS_OK;
-}
-
-DefaultContainerImpl::DefaultContainerImpl(const nsACString& aType,
-                                           ISOControl* aControl)
-  : Box(aType, aControl)
-{
-}
-
-nsresult
-Box::Write()
-{
-  mControl->Write(size);
-  mControl->WriteFourCC(boxType.get());
-  return NS_OK;
-}
-
-nsresult
-Box::Find(const nsACString& aType, nsTArray<RefPtr<MuxerOperation>>& aOperations)
-{
-  if (boxType == aType) {
-    aOperations.AppendElement(this);
-  }
-  return NS_OK;
-}
-
-Box::Box(const nsACString& aType, ISOControl* aControl)
-  : size(8), mControl(aControl)
-{
-  MOZ_ASSERT(aType.Length() == 4);
-  boxType = aType;
-  aControl->GetAudioMetadata(mAudioMeta);
-  aControl->GetVideoMetadata(mVideoMeta);
-}
-
-FullBox::FullBox(const nsACString& aType, uint8_t aVersion, uint32_t aFlags,
-                 ISOControl* aControl)
-  : Box(aType, aControl)
-{
-  std::bitset<24> tmp_flags(aFlags);
-  version = aVersion;
-  flags = tmp_flags;
-  size += sizeof(version) + flags.size() / CHAR_BIT;
-}
-
-nsresult
-FullBox::Write()
-{
-  Box::Write();
-  mControl->Write(version);
-  mControl->WriteBits(flags.to_ulong(), flags.size());
-  return NS_OK;
-}
-
-TrackBox::TrackBox(uint32_t aTrackType, ISOControl* aControl)
-  : DefaultContainerImpl(NS_LITERAL_CSTRING("trak"), aControl)
-{
-  boxes.AppendElement(new TrackHeaderBox(aTrackType, aControl));
-  boxes.AppendElement(new MediaBox(aTrackType, aControl));
-  MOZ_COUNT_CTOR(TrackBox);
-}
-
-TrackBox::~TrackBox()
-{
-  MOZ_COUNT_DTOR(TrackBox);
-}
-
-SampleEntryBox::SampleEntryBox(const nsACString& aFormat, ISOControl* aControl)
-  : Box(aFormat, aControl)
-  , data_reference_index(0)
-{
-  data_reference_index = 1; // There is only one data reference in each track.
-  size += sizeof(reserved) +
-          sizeof(data_reference_index);
-  memset(reserved, 0, sizeof(reserved));
-}
-
-nsresult
-SampleEntryBox::Write()
-{
-  Box::Write();
-  mControl->Write(reserved, sizeof(reserved));
-  mControl->Write(data_reference_index);
-  return NS_OK;
-}
-
-nsresult
-AudioSampleEntry::Write()
-{
-  SampleEntryBox::Write();
-  mControl->Write(sound_version);
-  mControl->Write(reserved2, sizeof(reserved2));
-  mControl->Write(channels);
-  mControl->Write(sample_size);
-  mControl->Write(compressionId);
-  mControl->Write(packet_size);
-  mControl->Write(timeScale);
-  return NS_OK;
-}
-
-AudioSampleEntry::AudioSampleEntry(const nsACString& aFormat, ISOControl* aControl)
-  : SampleEntryBox(aFormat, aControl)
-  , sound_version(0)
-  , channels(2)
-  , sample_size(16)
-  , compressionId(0)
-  , packet_size(0)
-  , timeScale(0)
-{
-  memset(reserved2, 0 , sizeof(reserved2));
-  channels = mAudioMeta->GetAudioChannels();
-  timeScale = mAudioMeta->GetAudioSampleRate() << 16;
-
-  size += sizeof(sound_version) +
-          sizeof(reserved2) +
-          sizeof(sample_size) +
-          sizeof(channels) +
-          sizeof(packet_size) +
-          sizeof(compressionId) +
-          sizeof(timeScale);
-
-  MOZ_COUNT_CTOR(AudioSampleEntry);
-}
-
-AudioSampleEntry::~AudioSampleEntry()
-{
-  MOZ_COUNT_DTOR(AudioSampleEntry);
-}
-
-nsresult
-VisualSampleEntry::Write()
-{
-  SampleEntryBox::Write();
-
-  mControl->Write(reserved, sizeof(reserved));
-  mControl->Write(width);
-  mControl->Write(height);
-  mControl->Write(horizresolution);
-  mControl->Write(vertresolution);
-  mControl->Write(reserved2);
-  mControl->Write(frame_count);
-  mControl->Write(compressorName, sizeof(compressorName));
-  mControl->Write(depth);
-  mControl->Write(pre_defined);
-
-  return NS_OK;
-}
-
-VisualSampleEntry::VisualSampleEntry(const nsACString& aFormat, ISOControl* aControl)
-  : SampleEntryBox(aFormat, aControl)
-  , width(0)
-  , height(0)
-  , horizresolution(resolution_72_dpi)
-  , vertresolution(resolution_72_dpi)
-  , reserved2(0)
-  , frame_count(1)
-  , depth(video_depth)
-  , pre_defined(-1)
-{
-  memset(reserved, 0 , sizeof(reserved));
-  memset(compressorName, 0 , sizeof(compressorName));
-
-  // both fields occupy 16 bits defined in 14496-2 6.2.3.
-  width = mVideoMeta->GetVideoWidth();
-  height = mVideoMeta->GetVideoHeight();
-
-  size += sizeof(reserved) +
-          sizeof(width) +
-          sizeof(height) +
-          sizeof(horizresolution) +
-          sizeof(vertresolution) +
-          sizeof(reserved2) +
-          sizeof(frame_count) +
-          sizeof(compressorName) +
-          sizeof(depth) +
-          sizeof(pre_defined);
-
-  MOZ_COUNT_CTOR(VisualSampleEntry);
-}
-
-VisualSampleEntry::~VisualSampleEntry()
-{
-  MOZ_COUNT_DTOR(VisualSampleEntry);
-}
-
-}
diff --git a/dom/media/encoder/fmp4_muxer/ISOMediaBoxes.h b/dom/media/encoder/fmp4_muxer/ISOMediaBoxes.h
deleted file mode 100644
index a6dc1b046..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOMediaBoxes.h
+++ /dev/null
@@ -1,781 +0,0 @@
-/* -*- 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/. */
-
-#ifndef ISOMediaBoxes_h_
-#define ISOMediaBoxes_h_
-
-#include <bitset>
-#include "nsString.h"
-#include "nsTArray.h"
-#include "nsAutoPtr.h"
-#include "MuxerOperation.h"
-#include "mozilla/UniquePtr.h"
-
-#define WRITE_FULLBOX(_compositor, _size)       \
-  BoxSizeChecker checker(_compositor, _size);   \
-  FullBox::Write();
-
-#define FOURCC(a, b, c, d) ( ((a) << 24) | ((b) << 16) | ((c) << 8) | (d) )
-
-namespace mozilla {
-
-/**
- * track type from spec 8.4.3.3
- */
-#define Audio_Track 0x01
-#define Video_Track 0x02
-
-class AudioTrackMetadata;
-class VideoTrackMetadata;
-class ISOControl;
-
-/**
- * This is the base class for all ISO media format boxes.
- * It provides the fields of box type(four CC) and size.
- * The data members in the beginning of a Box (or its descendants)
- * are the 14496-12 defined member. Other members prefix with 'm'
- * are private control data.
- *
- * This class is for inherited only, it shouldn't be instanced directly.
- */
-class Box : public MuxerOperation {
-protected:
-  // ISO BMFF members
-  uint32_t size;     // 14496-12 4-2 'Object Structure'. Size of this box.
-  nsCString boxType; // four CC name, all table names are listed in
-                     // 14496-12 table 1.
-
-public:
-  // MuxerOperation methods
-  nsresult Write() override;
-  nsresult Find(const nsACString& aType,
-                nsTArray<RefPtr<MuxerOperation>>& aOperations) override;
-
-  // This helper class will compare the written size in Write() and the size in
-  // Generate(). If their are not equal, it will assert.
-  class BoxSizeChecker {
-  public:
-    BoxSizeChecker(ISOControl* aControl, uint32_t aSize);
-    ~BoxSizeChecker();
-
-    uint32_t ori_size;
-    uint32_t box_size;
-    ISOControl* mControl;
-  };
-
-protected:
-  Box() = delete;
-  Box(const nsACString& aType, ISOControl* aControl);
-
-  ISOControl* mControl;
-  RefPtr<AudioTrackMetadata> mAudioMeta;
-  RefPtr<VideoTrackMetadata> mVideoMeta;
-};
-
-/**
- * FullBox (and its descendants) is the box which contains the 'real' data
- * members. It is the edge in the ISO box structure and it doesn't contain
- * any box.
- *
- * This class is for inherited only, it shouldn't be instanced directly.
- */
-class FullBox : public Box {
-public:
-  // ISO BMFF members
-  uint8_t version;       // 14496-12 4.2 'Object Structure'
-  std::bitset<24> flags; //
-
-  // MuxerOperation methods
-  nsresult Write() override;
-
-protected:
-  // FullBox methods
-  FullBox(const nsACString& aType, uint8_t aVersion, uint32_t aFlags,
-          ISOControl* aControl);
-  FullBox() = delete;
-};
-
-/**
- * The default implementation of the container box.
- * Basically, the container box inherits this class and overrides the
- * constructor only.
- *
- * According to 14496-12 3.1.1 'container box', a container box is
- * 'box whose sole purpose is to contain and group a set of related boxes'
- *
- * This class is for inherited only, it shouldn't be instanced directly.
- */
-class DefaultContainerImpl : public Box {
-public:
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-  nsresult Find(const nsACString& aType,
-                nsTArray<RefPtr<MuxerOperation>>& aOperations) override;
-
-protected:
-  // DefaultContainerImpl methods
-  DefaultContainerImpl(const nsACString& aType, ISOControl* aControl);
-  DefaultContainerImpl() = delete;
-
-  nsTArray<RefPtr<MuxerOperation>> boxes;
-};
-
-// 14496-12 4.3 'File Type Box'
-// Box type: 'ftyp'
-class FileTypeBox : public Box {
-public:
-  // ISO BMFF members
-  nsCString major_brand; // four chars
-  uint32_t minor_version;
-  nsTArray<nsCString> compatible_brands;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // FileTypeBox methods
-  FileTypeBox(ISOControl* aControl);
-  ~FileTypeBox();
-};
-
-// 14496-12 8.2.1 'Movie Box'
-// Box type: 'moov'
-// MovieBox contains MovieHeaderBox, TrackBox and MovieExtendsBox.
-class MovieBox : public DefaultContainerImpl {
-public:
-  MovieBox(ISOControl* aControl);
-  ~MovieBox();
-};
-
-// 14496-12 8.2.2 'Movie Header Box'
-// Box type: 'mvhd'
-class MovieHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t creation_time;
-  uint32_t modification_time;
-  uint32_t timescale;
-  uint32_t duration;
-  uint32_t rate;
-  uint16_t volume;
-  uint16_t reserved16;
-  uint32_t reserved32[2];
-  uint32_t matrix[9];
-  uint32_t pre_defined[6];
-  uint32_t next_track_ID;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // MovieHeaderBox methods
-  MovieHeaderBox(ISOControl* aControl);
-  ~MovieHeaderBox();
-  uint32_t GetTimeScale();
-};
-
-// 14496-12 8.4.2 'Media Header Box'
-// Box type: 'mdhd'
-class MediaHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t creation_time;
-  uint32_t modification_time;
-  uint32_t timescale;
-  uint32_t duration;
-  std::bitset<1> pad;
-  std::bitset<5> lang1;
-  std::bitset<5> lang2;
-  std::bitset<5> lang3;
-  uint16_t pre_defined;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // MediaHeaderBox methods
-  MediaHeaderBox(uint32_t aType, ISOControl* aControl);
-  ~MediaHeaderBox();
-  uint32_t GetTimeScale();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.3.1 'Track Box'
-// Box type: 'trak'
-// TrackBox contains TrackHeaderBox and MediaBox.
-class TrackBox : public DefaultContainerImpl {
-public:
-  TrackBox(uint32_t aTrackType, ISOControl* aControl);
-  ~TrackBox();
-};
-
-// 14496-12 8.1.1 'Media Data Box'
-// Box type: 'mdat'
-class MediaDataBox : public Box {
-public:
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // MediaDataBox methods
-  uint32_t GetAllSampleSize() { return mAllSampleSize; }
-  uint32_t FirstSampleOffsetInMediaDataBox() { return mFirstSampleOffset; }
-  MediaDataBox(uint32_t aTrackType, ISOControl* aControl);
-  ~MediaDataBox();
-
-protected:
-  uint32_t mAllSampleSize;      // All audio and video sample size in this box.
-  uint32_t mFirstSampleOffset;  // The offset of first sample in this box from
-                                // the beginning of this mp4 file.
-  uint32_t mTrackType;
-};
-
-// flags for TrackRunBox::flags, 14496-12 8.8.8.1.
-#define flags_data_offset_present                     0x000001
-#define flags_first_sample_flags_present              0x000002
-#define flags_sample_duration_present                 0x000100
-#define flags_sample_size_present                     0x000200
-#define flags_sample_flags_present                    0x000400
-#define flags_sample_composition_time_offsets_present 0x000800
-
-// flag for TrackRunBox::tbl::sample_flags and TrackExtendsBox::default_sample_flags
-// which is defined in 14496-12 8.8.3.1.
-uint32_t set_sample_flags(bool aSync);
-
-// 14496-12 8.8.8 'Track Fragment Run Box'
-// Box type: 'trun'
-class TrackRunBox : public FullBox {
-public:
-  // ISO BMFF members
-  typedef struct {
-    uint32_t sample_duration;
-    uint32_t sample_size;
-    uint32_t sample_flags;
-    uint32_t sample_composition_time_offset;
-  } tbl;
-
-  uint32_t sample_count;
-  // the following are optional fields
-  uint32_t data_offset; // data offset exists when audio/video are present in file.
-  uint32_t first_sample_flags;
-  UniquePtr<tbl[]> sample_info_table;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // TrackRunBox methods
-  uint32_t GetAllSampleSize() { return mAllSampleSize; }
-  nsresult SetDataOffset(uint32_t aOffset);
-
-  TrackRunBox(uint32_t aType, uint32_t aFlags, ISOControl* aControl);
-  ~TrackRunBox();
-
-protected:
-  uint32_t fillSampleTable();
-
-  uint32_t mAllSampleSize;
-  uint32_t mTrackType;
-};
-
-// tf_flags in TrackFragmentHeaderBox, 14496-12 8.8.7.1.
-#define base_data_offset_present         0x000001
-#define sample_description_index_present 0x000002
-#define default_sample_duration_present  0x000008
-#define default_sample_size_present      0x000010
-#define default_sample_flags_present     0x000020
-#define duration_is_empty                0x010000
-#define default_base_is_moof             0x020000
-
-// 14496-12 8.8.7 'Track Fragment Header Box'
-// Box type: 'tfhd'
-class TrackFragmentHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t track_ID;
-  uint64_t base_data_offset;
-  uint32_t default_sample_duration;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // TrackFragmentHeaderBox methods
-  nsresult UpdateBaseDataOffset(uint64_t aOffset); // The offset of the first
-                                                   // sample in file.
-
-  TrackFragmentHeaderBox(uint32_t aType, uint32_t aFlags, ISOControl* aControl);
-  ~TrackFragmentHeaderBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.8.6 'Track Fragment Box'
-// Box type: 'traf'
-// TrackFragmentBox cotains TrackFragmentHeaderBox and TrackRunBox.
-class TrackFragmentBox : public DefaultContainerImpl {
-public:
-  TrackFragmentBox(uint32_t aType, ISOControl* aControl);
-  ~TrackFragmentBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.8.5 'Movie Fragment Header Box'
-// Box type: 'mfhd'
-class MovieFragmentHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t sequence_number;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // MovieFragmentHeaderBox methods
-  MovieFragmentHeaderBox(uint32_t aType, ISOControl* aControl);
-  ~MovieFragmentHeaderBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.8.4 'Movie Fragment Box'
-// Box type: 'moof'
-// MovieFragmentBox contains MovieFragmentHeaderBox and TrackFragmentBox.
-class MovieFragmentBox : public DefaultContainerImpl {
-public:
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-
-  // MovieFragmentBox methods
-  MovieFragmentBox(uint32_t aType, ISOControl* aControl);
-  ~MovieFragmentBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.8.3 'Track Extends Box'
-// Box type: 'trex'
-class TrackExtendsBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t track_ID;
-  uint32_t default_sample_description_index;
-  uint32_t default_sample_duration;
-  uint32_t default_sample_size;
-  uint32_t default_sample_flags;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // TrackExtendsBox methods
-  TrackExtendsBox(uint32_t aType, ISOControl* aControl);
-  ~TrackExtendsBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.8.1 'Movie Extends Box'
-// Box type: 'mvex'
-// MovieExtendsBox contains TrackExtendsBox.
-class MovieExtendsBox : public DefaultContainerImpl {
-public:
-  MovieExtendsBox(ISOControl* aControl);
-  ~MovieExtendsBox();
-};
-
-// 14496-12 8.7.5 'Chunk Offset Box'
-// Box type: 'stco'
-class ChunkOffsetBox : public FullBox {
-public:
-  // ISO BMFF members
-  typedef struct {
-    uint32_t chunk_offset;
-  } tbl;
-
-  uint32_t entry_count;
-  UniquePtr<tbl[]> sample_tbl;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // ChunkOffsetBox methods
-  ChunkOffsetBox(uint32_t aType, ISOControl* aControl);
-  ~ChunkOffsetBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.7.4 'Sample To Chunk Box'
-// Box type: 'stsc'
-class SampleToChunkBox : public FullBox {
-public:
-  // ISO BMFF members
-  typedef struct {
-    uint32_t first_chunk;
-    uint32_t sample_per_chunk;
-    uint32_t sample_description_index;
-  } tbl;
-
-  uint32_t entry_count;
-  UniquePtr<tbl[]> sample_tbl;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // SampleToChunkBox methods
-  SampleToChunkBox(uint32_t aType, ISOControl* aControl);
-  ~SampleToChunkBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.6.1.2 'Decoding Time to Sample Box'
-// Box type: 'stts'
-class TimeToSampleBox : public FullBox {
-public:
-  // ISO BMFF members
-  typedef struct {
-    uint32_t sample_count;
-    uint32_t sample_delta;
-  } tbl;
-
-  uint32_t entry_count;
-  UniquePtr<tbl[]> sample_tbl;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // TimeToSampleBox methods
-  TimeToSampleBox(uint32_t aType, ISOControl* aControl);
-  ~TimeToSampleBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-/**
- * 14496-12 8.5.2 'Sample Description Box'
- * This is the base class for VisualSampleEntry and AudioSampleEntry.
- *
- * This class is for inherited only, it shouldn't be instanced directly.
- *
- * The inhertied tree of a codec box should be:
- *
- *                                            +--> AVCSampleEntry
- *                  +--> VisualSampleEntryBox +
- *                  |                         +--> ...
- *   SampleEntryBox +
- *                  |                         +--> MP4AudioSampleEntry
- *                  +--> AudioSampleEntryBox  +
- *                                            +--> AMRSampleEntry
- *                                            +
- *                                            +--> ...
- *
- */
-class SampleEntryBox : public Box {
-public:
-  // ISO BMFF members
-  uint8_t reserved[6];
-  uint16_t data_reference_index;
-
-  // sampleentrybox methods
-  SampleEntryBox(const nsACString& aFormat, ISOControl* aControl);
-
-  // MuxerOperation methods
-  nsresult Write() override;
-
-protected:
-  SampleEntryBox() = delete;
-};
-
-// 14496-12 8.5.2 'Sample Description Box'
-// Box type: 'stsd'
-class SampleDescriptionBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t entry_count;
-  RefPtr<SampleEntryBox> sample_entry_box;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // SampleDescriptionBox methods
-  SampleDescriptionBox(uint32_t aType, ISOControl* aControl);
-  ~SampleDescriptionBox();
-
-protected:
-  nsresult CreateAudioSampleEntry(RefPtr<SampleEntryBox>& aSampleEntry);
-  nsresult CreateVideoSampleEntry(RefPtr<SampleEntryBox>& aSampleEntry);
-
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.5.2.2
-// The base class for audio codec box.
-// This class is for inherited only, it shouldn't be instanced directly.
-class AudioSampleEntry : public SampleEntryBox {
-public:
-  // ISO BMFF members
-  uint16_t sound_version;
-  uint8_t reserved2[6];
-  uint16_t channels;
-  uint16_t sample_size;
-  uint16_t compressionId;
-  uint16_t packet_size;
-  uint32_t timeScale;  // (sample rate of media) <<16
-
-  // MuxerOperation methods
-  nsresult Write() override;
-
-  ~AudioSampleEntry();
-
-protected:
-  AudioSampleEntry(const nsACString& aFormat, ISOControl* aControl);
-};
-
-// 14496-12 8.5.2.2
-// The base class for video codec box.
-// This class is for inherited only, it shouldn't be instanced directly.
-class VisualSampleEntry : public SampleEntryBox {
-public:
-  // ISO BMFF members
-  uint8_t reserved[16];
-  uint16_t width;
-  uint16_t height;
-
-  uint32_t horizresolution; // 72 dpi
-  uint32_t vertresolution;  // 72 dpi
-  uint32_t reserved2;
-  uint16_t frame_count;     // 1, defined in 14496-12 8.5.2.2
-
-  uint8_t compressorName[32];
-  uint16_t depth;       // 0x0018, defined in 14496-12 8.5.2.2;
-  uint16_t pre_defined; // -1, defined in 14496-12 8.5.2.2;
-
-  // MuxerOperation methods
-  nsresult Write() override;
-
-  // VisualSampleEntry methods
-  ~VisualSampleEntry();
-
-protected:
-  VisualSampleEntry(const nsACString& aFormat, ISOControl* aControl);
-};
-
-// 14496-12 8.7.3.2 'Sample Size Box'
-// Box type: 'stsz'
-class SampleSizeBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t sample_size;
-  uint32_t sample_count;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // SampleSizeBox methods
-  SampleSizeBox(ISOControl* aControl);
-  ~SampleSizeBox();
-};
-
-// 14496-12 8.5.1 'Sample Table Box'
-// Box type: 'stbl'
-//
-// SampleTableBox contains SampleDescriptionBox,
-//                         TimeToSampleBox,
-//                         SampleToChunkBox,
-//                         SampleSizeBox and
-//                         ChunkOffsetBox.
-class SampleTableBox : public DefaultContainerImpl {
-public:
-  SampleTableBox(uint32_t aType, ISOControl* aControl);
-  ~SampleTableBox();
-};
-
-// 14496-12 8.7.2 'Data Reference Box'
-// Box type: 'url '
-class DataEntryUrlBox : public FullBox {
-public:
-  // ISO BMFF members
-  // flags in DataEntryUrlBox::flags
-  const static uint16_t flags_media_at_the_same_file = 0x0001;
-
-  nsCString location;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // DataEntryUrlBox methods
-  DataEntryUrlBox();
-  DataEntryUrlBox(ISOControl* aControl);
-  DataEntryUrlBox(const DataEntryUrlBox& aBox);
-  ~DataEntryUrlBox();
-};
-
-// 14496-12 8.7.2 'Data Reference Box'
-// Box type: 'dref'
-class DataReferenceBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t entry_count;
-  nsTArray<nsAutoPtr<DataEntryUrlBox>> urls;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // DataReferenceBox methods
-  DataReferenceBox(ISOControl* aControl);
-  ~DataReferenceBox();
-};
-
-// 14496-12 8.7.1 'Data Information Box'
-// Box type: 'dinf'
-// DataInformationBox contains DataReferenceBox.
-class DataInformationBox : public DefaultContainerImpl {
-public:
-  DataInformationBox(ISOControl* aControl);
-  ~DataInformationBox();
-};
-
-// 14496-12 8.4.5.2 'Video Media Header Box'
-// Box type: 'vmhd'
-class VideoMediaHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint16_t graphicsmode;
-  uint16_t opcolor[3];
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // VideoMediaHeaderBox methods
-  VideoMediaHeaderBox(ISOControl* aControl);
-  ~VideoMediaHeaderBox();
-};
-
-// 14496-12 8.4.5.3 'Sound Media Header Box'
-// Box type: 'smhd'
-class SoundMediaHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint16_t balance;
-  uint16_t reserved;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // SoundMediaHeaderBox methods
-  SoundMediaHeaderBox(ISOControl* aControl);
-  ~SoundMediaHeaderBox();
-};
-
-// 14496-12 8.4.4 'Media Information Box'
-// Box type: 'minf'
-// MediaInformationBox contains SoundMediaHeaderBox, DataInformationBox and
-// SampleTableBox.
-class MediaInformationBox : public DefaultContainerImpl {
-public:
-  MediaInformationBox(uint32_t aType, ISOControl* aControl);
-  ~MediaInformationBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// flags for TrackHeaderBox::flags.
-#define flags_track_enabled    0x000001
-#define flags_track_in_movie   0x000002
-#define flags_track_in_preview 0x000004
-
-// 14496-12 8.3.2 'Track Header Box'
-// Box type: 'tkhd'
-class TrackHeaderBox : public FullBox {
-public:
-  // ISO BMFF members
-  // version = 0
-  uint32_t creation_time;
-  uint32_t modification_time;
-  uint32_t track_ID;
-  uint32_t reserved;
-  uint32_t duration;
-
-  uint32_t reserved2[2];
-  uint16_t layer;
-  uint16_t alternate_group;
-  uint16_t volume;
-  uint16_t reserved3;
-  uint32_t matrix[9];
-  uint32_t width;
-  uint32_t height;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // TrackHeaderBox methods
-  TrackHeaderBox(uint32_t aType, ISOControl* aControl);
-  ~TrackHeaderBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.4.3 'Handler Reference Box'
-// Box type: 'hdlr'
-class HandlerBox : public FullBox {
-public:
-  // ISO BMFF members
-  uint32_t pre_defined;
-  uint32_t handler_type;
-  uint32_t reserved[3];
-  nsCString name;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // HandlerBox methods
-  HandlerBox(uint32_t aType, ISOControl* aControl);
-  ~HandlerBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-// 14496-12 8.4.1 'Media Box'
-// Box type: 'mdia'
-// MediaBox contains MediaHeaderBox, HandlerBox, and MediaInformationBox.
-class MediaBox : public DefaultContainerImpl {
-public:
-  MediaBox(uint32_t aType, ISOControl* aControl);
-  ~MediaBox();
-
-protected:
-  uint32_t mTrackType;
-};
-
-}
-#endif // ISOMediaBoxes_h_
diff --git a/dom/media/encoder/fmp4_muxer/ISOMediaWriter.cpp b/dom/media/encoder/fmp4_muxer/ISOMediaWriter.cpp
deleted file mode 100644
index cb4524e00..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOMediaWriter.cpp
+++ /dev/null
@@ -1,229 +0,0 @@
-/* -*- 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 "ISOMediaWriter.h"
-#include "ISOControl.h"
-#include "ISOMediaBoxes.h"
-#include "ISOTrackMetadata.h"
-#include "nsThreadUtils.h"
-#include "MediaEncoder.h"
-#include "VideoUtils.h"
-#include "GeckoProfiler.h"
-
-#undef LOG
-#define LOG(args, ...)
-
-namespace mozilla {
-
-const static uint32_t FRAG_DURATION = 2 * USECS_PER_S;    // microsecond per unit
-
-ISOMediaWriter::ISOMediaWriter(uint32_t aType, uint32_t aHint)
-  : ContainerWriter()
-  , mState(MUXING_HEAD)
-  , mBlobReady(false)
-  , mType(0)
-{
-  if (aType & CREATE_AUDIO_TRACK) {
-    mType |= Audio_Track;
-  }
-  if (aType & CREATE_VIDEO_TRACK) {
-    mType |= Video_Track;
-  }
-  mControl = new ISOControl(aHint);
-  MOZ_COUNT_CTOR(ISOMediaWriter);
-}
-
-ISOMediaWriter::~ISOMediaWriter()
-{
-  MOZ_COUNT_DTOR(ISOMediaWriter);
-}
-
-nsresult
-ISOMediaWriter::RunState()
-{
-  nsresult rv;
-  switch (mState) {
-    case MUXING_HEAD:
-    {
-      rv = mControl->GenerateFtyp();
-      NS_ENSURE_SUCCESS(rv, rv);
-      rv = mControl->GenerateMoov();
-      NS_ENSURE_SUCCESS(rv, rv);
-      mState = MUXING_FRAG;
-      break;
-    }
-    case MUXING_FRAG:
-    {
-      rv = mControl->GenerateMoof(mType);
-      NS_ENSURE_SUCCESS(rv, rv);
-
-      bool EOS;
-      if (ReadyToRunState(EOS) && EOS) {
-        mState = MUXING_DONE;
-      }
-      break;
-    }
-    case MUXING_DONE:
-    {
-      break;
-    }
-  }
-  mBlobReady = true;
-  return NS_OK;
-}
-
-nsresult
-ISOMediaWriter::WriteEncodedTrack(const EncodedFrameContainer& aData,
-                                  uint32_t aFlags)
-{
-  PROFILER_LABEL("ISOMediaWriter", "WriteEncodedTrack",
-    js::ProfileEntry::Category::OTHER);
-  // Muxing complete, it doesn't allowed to reentry again.
-  if (mState == MUXING_DONE) {
-    MOZ_ASSERT(false);
-    return NS_ERROR_FAILURE;
-  }
-
-  FragmentBuffer* frag = nullptr;
-  uint32_t len = aData.GetEncodedFrames().Length();
-
-  if (!len) {
-    // no frame? why bother to WriteEncodedTrack
-    return NS_OK;
-  }
-  for (uint32_t i = 0; i < len; i++) {
-    RefPtr<EncodedFrame> frame(aData.GetEncodedFrames()[i]);
-    EncodedFrame::FrameType type = frame->GetFrameType();
-    if (type == EncodedFrame::AAC_AUDIO_FRAME ||
-        type == EncodedFrame::AAC_CSD ||
-        type == EncodedFrame::AMR_AUDIO_FRAME ||
-        type == EncodedFrame::AMR_AUDIO_CSD ||
-        type == EncodedFrame::EVRC_AUDIO_FRAME ||
-        type == EncodedFrame::EVRC_AUDIO_CSD) {
-      frag = mAudioFragmentBuffer;
-    } else if (type == EncodedFrame::AVC_I_FRAME ||
-               type == EncodedFrame::AVC_P_FRAME ||
-               type == EncodedFrame::AVC_B_FRAME ||
-               type == EncodedFrame::AVC_CSD) {
-      frag = mVideoFragmentBuffer;
-    } else {
-      MOZ_ASSERT(0);
-      return NS_ERROR_FAILURE;
-    }
-
-    frag->AddFrame(frame);
-  }
-
-  // Encoder should send CSD (codec specific data) frame before sending the
-  // audio/video frames. When CSD data is ready, it is sufficient to generate a
-  // moov data. If encoder doesn't send CSD yet, muxer needs to wait before
-  // generating anything.
-  if (mType & Audio_Track && (!mAudioFragmentBuffer ||
-                              !mAudioFragmentBuffer->HasCSD())) {
-    return NS_OK;
-  }
-  if (mType & Video_Track && (!mVideoFragmentBuffer ||
-                              !mVideoFragmentBuffer->HasCSD())) {
-    return NS_OK;
-  }
-
-  // Only one FrameType in EncodedFrameContainer so it doesn't need to be
-  // inside the for-loop.
-  if (frag && (aFlags & END_OF_STREAM)) {
-    frag->SetEndOfStream();
-  }
-
-  nsresult rv;
-  bool EOS;
-  if (ReadyToRunState(EOS)) {
-    // Because track encoder won't generate new data after EOS, it needs to make
-    // sure the state reaches MUXING_DONE when EOS is signaled.
-    do {
-      rv = RunState();
-    } while (EOS && mState != MUXING_DONE);
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
-
-  return NS_OK;
-}
-
-bool
-ISOMediaWriter::ReadyToRunState(bool& aEOS)
-{
-  aEOS = false;
-  bool bReadyToMux = true;
-  if ((mType & Audio_Track) && (mType & Video_Track)) {
-    if (!mAudioFragmentBuffer->HasEnoughData()) {
-      bReadyToMux = false;
-    }
-    if (!mVideoFragmentBuffer->HasEnoughData()) {
-      bReadyToMux = false;
-    }
-
-    if (mAudioFragmentBuffer->EOS() && mVideoFragmentBuffer->EOS()) {
-      aEOS = true;
-      bReadyToMux = true;
-    }
-  } else if (mType == Audio_Track) {
-    if (!mAudioFragmentBuffer->HasEnoughData()) {
-      bReadyToMux = false;
-    }
-    if (mAudioFragmentBuffer->EOS()) {
-      aEOS = true;
-      bReadyToMux = true;
-    }
-  } else if (mType == Video_Track) {
-    if (!mVideoFragmentBuffer->HasEnoughData()) {
-      bReadyToMux = false;
-    }
-    if (mVideoFragmentBuffer->EOS()) {
-      aEOS = true;
-      bReadyToMux = true;
-    }
-  }
-
-  return bReadyToMux;
-}
-
-nsresult
-ISOMediaWriter::GetContainerData(nsTArray<nsTArray<uint8_t>>* aOutputBufs,
-                                 uint32_t aFlags)
-{
-  PROFILER_LABEL("ISOMediaWriter", "GetContainerData",
-    js::ProfileEntry::Category::OTHER);
-  if (mBlobReady) {
-    if (mState == MUXING_DONE) {
-      mIsWritingComplete = true;
-    }
-    mBlobReady = false;
-    return mControl->GetBufs(aOutputBufs);
-  }
-  return NS_OK;
-}
-
-nsresult
-ISOMediaWriter::SetMetadata(TrackMetadataBase* aMetadata)
-{
-  PROFILER_LABEL("ISOMediaWriter", "SetMetadata",
-    js::ProfileEntry::Category::OTHER);
-  if (aMetadata->GetKind() == TrackMetadataBase::METADATA_AAC ||
-      aMetadata->GetKind() == TrackMetadataBase::METADATA_AMR ||
-      aMetadata->GetKind() == TrackMetadataBase::METADATA_EVRC) {
-    mControl->SetMetadata(aMetadata);
-    mAudioFragmentBuffer = new FragmentBuffer(Audio_Track, FRAG_DURATION);
-    mControl->SetFragment(mAudioFragmentBuffer);
-    return NS_OK;
-  }
-  if (aMetadata->GetKind() == TrackMetadataBase::METADATA_AVC) {
-    mControl->SetMetadata(aMetadata);
-    mVideoFragmentBuffer = new FragmentBuffer(Video_Track, FRAG_DURATION);
-    mControl->SetFragment(mVideoFragmentBuffer);
-    return NS_OK;
-  }
-
-  return NS_ERROR_FAILURE;
-}
-
-} // namespace mozilla
diff --git a/dom/media/encoder/fmp4_muxer/ISOMediaWriter.h b/dom/media/encoder/fmp4_muxer/ISOMediaWriter.h
deleted file mode 100644
index cccbbe3cb..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOMediaWriter.h
+++ /dev/null
@@ -1,108 +0,0 @@
-/* -*- 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/. */
-
-#ifndef ISOMediaWriter_h_
-#define ISOMediaWriter_h_
-
-#include "ContainerWriter.h"
-#include "nsAutoPtr.h"
-#include "nsIRunnable.h"
-
-namespace mozilla {
-
-class ISOControl;
-class FragmentBuffer;
-
-class ISOMediaWriter : public ContainerWriter
-{
-public:
-  // Generate an fragmented MP4 stream, ISO/IEC 14496-12.
-  // Brand names in 'ftyp' box are 'isom' and 'mp42'.
-  const static uint32_t TYPE_FRAG_MP4 = 1 << 0;
-
-  // Generate an fragmented 3GP stream, 3GPP TS 26.244,
-  // '5.4.3 Basic profile'.
-  // Brand names in 'ftyp' box are '3gp9' and 'isom'.
-  const static uint32_t TYPE_FRAG_3GP = 1 << 1;
-
-  // Generate an fragmented 3G2 stream, 3GPP2 C.S0050-B
-  // Brand names in 'ftyp' box are '3g2c' and 'isom'
-  const static uint32_t TYPE_FRAG_3G2 = 1 << 2;
-
-  // aType is the combination of CREATE_AUDIO_TRACK and CREATE_VIDEO_TRACK.
-  // It is a hint to muxer that the output streaming contains audio, video
-  // or both.
-  //
-  // aHint is one of the value in TYPE_XXXXXXXX. It is a hint to muxer what kind
-  // of ISO format should be generated.
-  ISOMediaWriter(uint32_t aType, uint32_t aHint = TYPE_FRAG_MP4);
-  ~ISOMediaWriter();
-
-  // ContainerWriter methods
-  nsresult WriteEncodedTrack(const EncodedFrameContainer &aData,
-                             uint32_t aFlags = 0) override;
-
-  nsresult GetContainerData(nsTArray<nsTArray<uint8_t>>* aOutputBufs,
-                            uint32_t aFlags = 0) override;
-
-  nsresult SetMetadata(TrackMetadataBase* aMetadata) override;
-
-protected:
-  /**
-   * The state of each state will generate one or more blob.
-   * Each blob will be a moov, moof, moof... until receiving EOS.
-   * The generated sequence is:
-   *
-   *   moov -> moof -> moof -> ... -> moof -> moof
-   *
-   * Following is the details of each state.
-   *   MUXING_HEAD:
-   *     It collects the metadata to generate a moov. The state transits to
-   *     MUXING_HEAD after output moov blob.
-   *
-   *   MUXING_FRAG:
-   *     It collects enough audio/video data to generate a fragment blob. This
-   *     will be repeated until END_OF_STREAM and then transiting to MUXING_DONE.
-   *
-   *   MUXING_DONE:
-   *     End of ISOMediaWriter life cycle.
-   */
-  enum MuxState {
-    MUXING_HEAD,
-    MUXING_FRAG,
-    MUXING_DONE,
-  };
-
-private:
-  nsresult RunState();
-
-  // True if one of following conditions hold:
-  //   1. Audio/Video accumulates enough data to generate a moof.
-  //   2. Get EOS signal.
-  //   aEOS will be assigned to true if it gets EOS signal.
-  bool ReadyToRunState(bool& aEOS);
-
-  // The main class to generate and iso box. Its life time is same as
-  // ISOMediaWriter and deleted only if ISOMediaWriter is destroyed.
-  nsAutoPtr<ISOControl> mControl;
-
-  // Buffers to keep audio/video data frames, they are created when metadata is
-  // received. Only one instance for each media type is allowed and they will be
-  // deleted only if ISOMediaWriter is destroyed.
-  nsAutoPtr<FragmentBuffer> mAudioFragmentBuffer;
-  nsAutoPtr<FragmentBuffer> mVideoFragmentBuffer;
-
-  MuxState mState;
-
-  // A flag to indicate the output buffer is ready to blob out.
-  bool mBlobReady;
-
-  // Combination of Audio_Track or Video_Track.
-  uint32_t mType;
-};
-
-} // namespace mozilla
-
-#endif // ISOMediaWriter_h_
diff --git a/dom/media/encoder/fmp4_muxer/ISOTrackMetadata.h b/dom/media/encoder/fmp4_muxer/ISOTrackMetadata.h
deleted file mode 100644
index 3613e1e9e..000000000
--- a/dom/media/encoder/fmp4_muxer/ISOTrackMetadata.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* -*- 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/. */
-
-#ifndef ISOTrackMetadata_h_
-#define ISOTrackMetadata_h_
-
-#include "TrackMetadataBase.h"
-
-namespace mozilla {
-
-class AACTrackMetadata : public AudioTrackMetadata {
-public:
-  // AudioTrackMetadata members
-  uint32_t GetAudioFrameDuration() override { return mFrameDuration; }
-  uint32_t GetAudioFrameSize() override { return mFrameSize; }
-  uint32_t GetAudioSampleRate() override { return mSampleRate; }
-  uint32_t GetAudioChannels() override { return mChannels; }
-
-  // TrackMetadataBase member
-  MetadataKind GetKind() const override { return METADATA_AAC; }
-
-  // AACTrackMetadata members
-  AACTrackMetadata()
-    : mSampleRate(0)
-    , mFrameDuration(0)
-    , mFrameSize(0)
-    , mChannels(0) {
-    MOZ_COUNT_CTOR(AACTrackMetadata);
-  }
-  ~AACTrackMetadata() { MOZ_COUNT_DTOR(AACTrackMetadata); }
-
-  uint32_t mSampleRate;     // From 14496-3 table 1.16, it could be 7350 ~ 96000.
-  uint32_t mFrameDuration;  // Audio frame duration based on SampleRate.
-  uint32_t mFrameSize;      // Audio frame size, 0 is variant size.
-  uint32_t mChannels;       // Channel number, it should be 1 or 2.
-};
-
-// AVC clock rate is 90k Hz.
-#define AVC_CLOCK_RATE 90000
-
-class AVCTrackMetadata : public VideoTrackMetadata {
-public:
-  // VideoTrackMetadata members
-  uint32_t GetVideoHeight() override { return mHeight; }
-  uint32_t GetVideoWidth() override {return mWidth; }
-  uint32_t GetVideoDisplayHeight() override { return mDisplayHeight; }
-  uint32_t GetVideoDisplayWidth() override { return mDisplayWidth;  }
-  uint32_t GetVideoClockRate() override { return AVC_CLOCK_RATE; }
-  uint32_t GetVideoFrameRate() override { return mFrameRate; }
-
-  // TrackMetadataBase member
-  MetadataKind GetKind() const override { return METADATA_AVC; }
-
-  // AVCTrackMetadata
-  AVCTrackMetadata()
-    : mHeight(0)
-    , mWidth(0)
-    , mDisplayHeight(0)
-    , mDisplayWidth(0)
-    , mFrameRate(0) {
-    MOZ_COUNT_CTOR(AVCTrackMetadata);
-  }
-  ~AVCTrackMetadata() { MOZ_COUNT_DTOR(AVCTrackMetadata); }
-
-  uint32_t mHeight;
-  uint32_t mWidth;
-  uint32_t mDisplayHeight;
-  uint32_t mDisplayWidth;
-  uint32_t mFrameRate;       // frames per second
-};
-
-
-// AMR sample rate is 8000 samples/s.
-#define AMR_SAMPLE_RATE 8000
-
-// Channel number is always 1.
-#define AMR_CHANNELS    1
-
-// AMR speech codec, 3GPP TS 26.071. Encoder and continer support AMR-NB only
-// currently.
-class AMRTrackMetadata : public AudioTrackMetadata {
-public:
-  // AudioTrackMetadata members
-  //
-  // The number of sample sets generates by encoder is variant. So the
-  // frame duration and frame size are both 0.
-  uint32_t GetAudioFrameDuration() override { return 0; }
-  uint32_t GetAudioFrameSize() override { return 0; }
-  uint32_t GetAudioSampleRate() override { return AMR_SAMPLE_RATE; }
-  uint32_t GetAudioChannels() override { return AMR_CHANNELS; }
-
-  // TrackMetadataBase member
-  MetadataKind GetKind() const override { return METADATA_AMR; }
-
-  // AMRTrackMetadata members
-  AMRTrackMetadata() { MOZ_COUNT_CTOR(AMRTrackMetadata); }
-  ~AMRTrackMetadata() { MOZ_COUNT_DTOR(AMRTrackMetadata); }
-};
-
-// EVRC sample rate is 8000 samples/s.
-#define EVRC_SAMPLE_RATE 8000
-
-class EVRCTrackMetadata : public AudioTrackMetadata {
-public:
-  // AudioTrackMetadata members
-  //
-  // The number of sample sets generates by encoder is variant. So the
-  // frame duration and frame size are both 0.
-  uint32_t GetAudioFrameDuration() override { return 0; }
-  uint32_t GetAudioFrameSize() override { return 0; }
-  uint32_t GetAudioSampleRate() override { return EVRC_SAMPLE_RATE; }
-  uint32_t GetAudioChannels() override { return mChannels; }
-
-  // TrackMetadataBase member
-  MetadataKind GetKind() const override { return METADATA_EVRC; }
-
-  // EVRCTrackMetadata members
-  EVRCTrackMetadata()
-    : mChannels(0) {
-    MOZ_COUNT_CTOR(EVRCTrackMetadata);
-  }
-  ~EVRCTrackMetadata() { MOZ_COUNT_DTOR(EVRCTrackMetadata); }
-
-  uint32_t mChannels;       // Channel number, it should be 1 or 2.
-};
-
-}
-
-#endif // ISOTrackMetadata_h_
diff --git a/dom/media/encoder/fmp4_muxer/MP4ESDS.cpp b/dom/media/encoder/fmp4_muxer/MP4ESDS.cpp
deleted file mode 100644
index 72880b5cb..000000000
--- a/dom/media/encoder/fmp4_muxer/MP4ESDS.cpp
+++ /dev/null
@@ -1,138 +0,0 @@
-/* -*- 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);
-}
-
-}
diff --git a/dom/media/encoder/fmp4_muxer/MP4ESDS.h b/dom/media/encoder/fmp4_muxer/MP4ESDS.h
deleted file mode 100644
index ee91312c1..000000000
--- a/dom/media/encoder/fmp4_muxer/MP4ESDS.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/* -*- 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/. */
-
-#ifndef MP4ESDS_h_
-#define MP4ESDS_h_
-
-#include "nsTArray.h"
-#include "MuxerOperation.h"
-
-namespace mozilla {
-
-class ISOControl;
-
-/**
- * ESDS tag
- */
-#define ESDescrTag        0x03
-
-/**
- * 14496-1 '8.3.3 ES_Descriptor'.
- * It will get DecoderConfigDescriptor and SLConfigDescriptor from
- * AAC CSD data.
- */
-class ES_Descriptor : public MuxerOperation {
-public:
-  // ISO BMFF members
-  uint8_t tag;      // ESDescrTag
-  uint8_t length;
-  uint16_t ES_ID;
-  std::bitset<1> streamDependenceFlag;
-  std::bitset<1> URL_Flag;
-  std::bitset<1> reserved;
-  std::bitset<5> streamPriority;
-
-  nsTArray<uint8_t> DecodeSpecificInfo;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-  nsresult Find(const nsACString& aType,
-                nsTArray<RefPtr<MuxerOperation>>& aOperations) override;
-
-  // ES_Descriptor methods
-  ES_Descriptor(ISOControl* aControl);
-  ~ES_Descriptor();
-
-protected:
-  ISOControl* mControl;
-};
-
-// 14496-14 5.6 'Sample Description Boxes'
-// Box type: 'esds'
-class ESDBox : public FullBox {
-public:
-  // ISO BMFF members
-  RefPtr<ES_Descriptor> es_descriptor;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // ESDBox methods
-  ESDBox(ISOControl* aControl);
-  ~ESDBox();
-};
-
-// 14496-14 5.6 'Sample Description Boxes'
-// Box type: 'mp4a'
-class MP4AudioSampleEntry : public AudioSampleEntry {
-public:
-  // ISO BMFF members
-  RefPtr<ESDBox> es;
-
-  // MuxerOperation methods
-  nsresult Generate(uint32_t* aBoxSize) override;
-  nsresult Write() override;
-
-  // MP4AudioSampleEntry methods
-  MP4AudioSampleEntry(ISOControl* aControl);
-  ~MP4AudioSampleEntry();
-};
-
-}
-
-#endif // MP4ESDS_h_
diff --git a/dom/media/encoder/fmp4_muxer/MuxerOperation.h b/dom/media/encoder/fmp4_muxer/MuxerOperation.h
deleted file mode 100644
index 0b83c89b0..000000000
--- a/dom/media/encoder/fmp4_muxer/MuxerOperation.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* -*- 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 "nsString.h"
-#include "nsTArray.h"
-
-#ifndef MuxerOperation_h_
-#define MuxerOperation_h_
-
-namespace mozilla {
-
-/**
- * The interface for ISO box. All Boxes inherit from this interface.
- * Generate() and Write() are needed to be called to produce a complete box.
- *
- * Generate() will generate all the data structures and their size.
- *
- * Write() will write all data into muxing output stream (ISOControl actually)
- * and update the data which can't be known at Generate() (for example, the
- * offset of the video data in mp4 file).
- *
- * ISO base media format is composed of several container boxes and the contained
- * boxes. The container boxes hold a list of MuxerOperation which is implemented
- * by contained boxes. The contained boxes will be called via the list.
- * For example:
- *   MovieBox (container) ---> boxes (array of MuxerOperation)
- *                              |---> MovieHeaderBox (full box)
- *                              |---> TrakBox (container)
- *                              |---> MovieExtendsBox (container)
- *
- * The complete box structure can be found at 14496-12 E.2 "The‘isom’brand".
- */
-class MuxerOperation {
-public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MuxerOperation)
-
-  // Generate data of this box and its contained box, and calculate box size.
-  virtual nsresult Generate(uint32_t* aBoxSize) = 0;
-
-  // Write data to stream.
-  virtual nsresult Write() = 0;
-
-  // Find the box type via its name (name is the box type defined in 14496-12;
-  // for example, 'moov' is the name of MovieBox).
-  // It can only look child boxes including itself and the box in the boxes
-  // list if exists. It can't look parent boxes.
-  virtual nsresult Find(const nsACString& aType,
-                        nsTArray<RefPtr<MuxerOperation>>& aOperations) = 0;
-
-protected:
-  virtual ~MuxerOperation() {}
-};
-
-}
-#endif
diff --git a/dom/media/encoder/fmp4_muxer/moz.build b/dom/media/encoder/fmp4_muxer/moz.build
deleted file mode 100644
index 5ff274be5..000000000
--- a/dom/media/encoder/fmp4_muxer/moz.build
+++ /dev/null
@@ -1,22 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# 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/.
-
-EXPORTS += [
-    'ISOMediaWriter.h',
-    'ISOTrackMetadata.h',
-]
-
-UNIFIED_SOURCES += [
-    'AMRBox.cpp',
-    'AVCBox.cpp',
-    'EVRCBox.cpp',
-    'ISOControl.cpp',
-    'ISOMediaBoxes.cpp',
-    'ISOMediaWriter.cpp',
-    'MP4ESDS.cpp',
-]
-
-FINAL_LIBRARY = 'xul'