Merge branch 'master' into js-modules

10 files changed, 795 insertions, 101 deletions

diff --git a/media/libstagefright/binding/Index.cpp b/media/libstagefright/binding/Index.cpp
index 9d6ab5028..eb039b5d6 100644
--- a/media/libstagefright/binding/Index.cpp
+++ b/media/libstagefright/binding/Index.cpp
@@ -143,6 +143,11 @@ already_AddRefed<MediaRawData> SampleIterator::GetNext()
     writer->mCrypto.mValid = true;
     writer->mCrypto.mIVSize = ivSize;
 
+    CencSampleEncryptionInfoEntry* sampleInfo = GetSampleEncryptionEntry();
+    if (sampleInfo) {
+      writer->mCrypto.mKeyId.AppendElements(sampleInfo->mKeyId);
+    }
+
     if (!reader.ReadArray(writer->mCrypto.mIV, ivSize)) {
       return nullptr;
     }
@@ -170,6 +175,65 @@ already_AddRefed<MediaRawData> SampleIterator::GetNext()
   return sample.forget();
 }
 
+CencSampleEncryptionInfoEntry* SampleIterator::GetSampleEncryptionEntry()
+{
+  nsTArray<Moof>& moofs = mIndex->mMoofParser->Moofs();
+  Moof* currentMoof = &moofs[mCurrentMoof];
+  SampleToGroupEntry* sampleToGroupEntry = nullptr;
+
+  // Default to using the sample to group entries for the fragment, otherwise
+  // fall back to the sample to group entries for the track.
+  nsTArray<SampleToGroupEntry>* sampleToGroupEntries =
+    currentMoof->mFragmentSampleToGroupEntries.Length() != 0
+    ? &currentMoof->mFragmentSampleToGroupEntries
+    : &mIndex->mMoofParser->mTrackSampleToGroupEntries;
+
+  uint32_t seen = 0;
+
+  for (SampleToGroupEntry& entry : *sampleToGroupEntries) {
+    if (seen + entry.mSampleCount > mCurrentSample) {
+      sampleToGroupEntry = &entry;
+      break;
+    }
+    seen += entry.mSampleCount;
+  }
+
+  // ISO-14496-12 Section 8.9.2.3 and 8.9.4 : group description index
+  // (1) ranges from 1 to the number of sample group entries in the track
+  // level SampleGroupDescription Box, or (2) takes the value 0 to
+  // indicate that this sample is a member of no group, in this case, the
+  // sample is associated with the default values specified in
+  // TrackEncryption Box, or (3) starts at 0x10001, i.e. the index value
+  // 1, with the value 1 in the top 16 bits, to reference fragment-local
+  // SampleGroupDescription Box.
+
+  // According to the spec, ISO-14496-12, the sum of the sample counts in this
+  // box should be equal to the total number of samples, and, if less, the
+  // reader should behave as if an extra SampleToGroupEntry existed, with
+  // groupDescriptionIndex 0.
+
+  if (!sampleToGroupEntry || sampleToGroupEntry->mGroupDescriptionIndex == 0) {
+    return nullptr;
+  }
+
+  nsTArray<CencSampleEncryptionInfoEntry>* entries =
+                      &mIndex->mMoofParser->mTrackSampleEncryptionInfoEntries;
+
+  uint32_t groupIndex = sampleToGroupEntry->mGroupDescriptionIndex;
+
+  // If the first bit is set to a one, then we should use the sample group
+  // descriptions from the fragment.
+  if (groupIndex > SampleToGroupEntry::kFragmentGroupDescriptionIndexBase) {
+    groupIndex -= SampleToGroupEntry::kFragmentGroupDescriptionIndexBase;
+    entries = &currentMoof->mFragmentSampleEncryptionInfoEntries;
+  }
+
+  // The group_index is one based.
+  return groupIndex > entries->Length()
+         ? nullptr
+         : &entries->ElementAt(groupIndex - 1);
+}
+
 Sample* SampleIterator::Get()
 {
   if (!mIndex->mMoofParser) {
diff --git a/media/libstagefright/binding/MoofParser.cpp b/media/libstagefright/binding/MoofParser.cpp
index ced054282..771be3428 100644
--- a/media/libstagefright/binding/MoofParser.cpp
+++ b/media/libstagefright/binding/MoofParser.cpp
@@ -27,6 +27,8 @@ namespace mp4_demuxer
 using namespace stagefright;
 using namespace mozilla;
 
+const uint32_t kKeyIdSize = 16;
+
 bool
 MoofParser::RebuildFragmentedIndex(const MediaByteRangeSet& aByteRanges)
 {
@@ -330,6 +332,18 @@ MoofParser::ParseStbl(Box& aBox)
   for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
     if (box.IsType("stsd")) {
       ParseStsd(box);
+      } else if (box.IsType("sgpd")) {
+      Sgpd sgpd(box);
+      if (sgpd.IsValid() && sgpd.mGroupingType == "seig") {
+        mTrackSampleEncryptionInfoEntries.Clear();
+        mTrackSampleEncryptionInfoEntries.AppendElements(sgpd.mEntries);
+      }
+    } else if (box.IsType("sbgp")) {
+      Sbgp sbgp(box);
+      if (sbgp.IsValid() && sbgp.mGroupingType == "seig") {
+        mTrackSampleToGroupEntries.Clear();
+        mTrackSampleToGroupEntries.AppendElements(sbgp.mEntries);
+      }
     }
   }
 }
@@ -495,12 +509,25 @@ Moof::ParseTraf(Box& aBox, Trex& aTrex, Mvhd& aMvhd, Mdhd& aMdhd, Edts& aEdts, S
   MOZ_ASSERT(aDecodeTime);
   Tfhd tfhd(aTrex);
   Tfdt tfdt;
+
   for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
     if (box.IsType("tfhd")) {
       tfhd = Tfhd(box, aTrex);
     } else if (!aTrex.mTrackId || tfhd.mTrackId == aTrex.mTrackId) {
       if (box.IsType("tfdt")) {
         tfdt = Tfdt(box);
+      } else if (box.IsType("sgpd")) {
+        Sgpd sgpd(box);
+        if (sgpd.IsValid() && sgpd.mGroupingType == "seig") {
+          mFragmentSampleEncryptionInfoEntries.Clear();
+          mFragmentSampleEncryptionInfoEntries.AppendElements(sgpd.mEntries);
+        }
+      } else if (box.IsType("sbgp")) {
+        Sbgp sbgp(box);
+        if (sbgp.IsValid() && sbgp.mGroupingType == "seig") {
+          mFragmentSampleToGroupEntries.Clear();
+          mFragmentSampleToGroupEntries.AppendElements(sbgp.mEntries);
+        }
       } else if (box.IsType("saiz")) {
         mSaizs.AppendElement(Saiz(box, aSinf.mDefaultEncryptionType));
       } else if (box.IsType("saio")) {
@@ -550,14 +577,20 @@ Moof::ParseTrun(Box& aBox, Tfhd& aTfhd, Mvhd& aMvhd, Mdhd& aMdhd, Edts& aEdts, u
     LOG(Moof, "Incomplete Box (missing flags)");
     return false;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return false;
+  }
   uint8_t version = flags >> 24;
 
   if (!reader->CanReadType<uint32_t>()) {
     LOG(Moof, "Incomplete Box (missing sampleCount)");
     return false;
   }
-  uint32_t sampleCount = reader->ReadU32();
+  uint32_t sampleCount;
+  if (!reader->ReadU32(sampleCount)) {
+    return false;
+  }
   if (sampleCount == 0) {
     return true;
   }
@@ -577,9 +610,21 @@ Moof::ParseTrun(Box& aBox, Tfhd& aTfhd, Mvhd& aMvhd, Mdhd& aMdhd, Edts& aEdts, u
     return false;
   }
 
-  uint64_t offset = aTfhd.mBaseDataOffset + (flags & 1 ? reader->ReadU32() : 0);
-  uint32_t firstSampleFlags =
-    flags & 4 ? reader->ReadU32() : aTfhd.mDefaultSampleFlags;
+  uint64_t offset = aTfhd.mBaseDataOffset;
+  if (flags & 1) {
+    uint32_t baseOffset;
+    if (!reader->ReadU32(baseOffset)) {
+      return false;
+    }
+    offset += baseOffset;
+  }
+  uint32_t firstSampleFlags = aTfhd.mDefaultSampleFlags;
+  if (flags & 4) {
+    if (!reader->ReadU32(firstSampleFlags)) {
+      return false;
+    }
+  }
+
   uint64_t decodeTime = *aDecodeTime;
   nsTArray<Interval<Microseconds>> timeRanges;
 
@@ -589,16 +634,29 @@ Moof::ParseTrun(Box& aBox, Tfhd& aTfhd, Mvhd& aMvhd, Mdhd& aMdhd, Edts& aEdts, u
   }
 
   for (size_t i = 0; i < sampleCount; i++) {
-    uint32_t sampleDuration =
-      flags & 0x100 ? reader->ReadU32() : aTfhd.mDefaultSampleDuration;
-    uint32_t sampleSize =
-      flags & 0x200 ? reader->ReadU32() : aTfhd.mDefaultSampleSize;
-    uint32_t sampleFlags =
-      flags & 0x400 ? reader->ReadU32()
-                    : i ? aTfhd.mDefaultSampleFlags : firstSampleFlags;
+    uint32_t sampleDuration = aTfhd.mDefaultSampleDuration;
+    if (flags & 0x100) {
+      if (!reader->ReadU32(sampleDuration)) {
+        return false;
+      }
+    }
+    uint32_t sampleSize = aTfhd.mDefaultSampleSize;
+    if (flags & 0x200) {
+      if (!reader->ReadU32(sampleSize)) {
+        return false;
+      }
+    }
+    uint32_t sampleFlags = i ? aTfhd.mDefaultSampleFlags : firstSampleFlags;
+    if (flags & 0x400) {
+      if (!reader->ReadU32(sampleFlags)) {
+        return false;
+      }
+    }
     int32_t ctsOffset = 0;
     if (flags & 0x800) {
-      ctsOffset = reader->Read32();
+      if (!reader->Read32(ctsOffset)) {
+        return false;
+      }
     }
 
     Sample sample;
@@ -635,7 +693,10 @@ Tkhd::Tkhd(Box& aBox)
     LOG(Tkhd, "Incomplete Box (missing flags)");
     return;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
   uint8_t version = flags >> 24;
   size_t need =
     3*(version ? sizeof(int64_t) : sizeof(int32_t)) + 2*sizeof(int32_t);
@@ -645,19 +706,30 @@ Tkhd::Tkhd(Box& aBox)
     return;
   }
   if (version == 0) {
-    mCreationTime = reader->ReadU32();
-    mModificationTime = reader->ReadU32();
-    mTrackId = reader->ReadU32();
-    uint32_t reserved = reader->ReadU32();
+    uint32_t createTime, modificationTime, trackId, reserved, duration;
+    if (!reader->ReadU32(createTime) ||
+        !reader->ReadU32(modificationTime) ||
+        !reader->ReadU32(trackId) ||
+        !reader->ReadU32(reserved) ||
+        !reader->ReadU32(duration)) {
+      return;
+    }
     NS_ASSERTION(!reserved, "reserved should be 0");
-    mDuration = reader->ReadU32();
+    mCreationTime = createTime;
+    mModificationTime = modificationTime;
+    mTrackId = trackId;
+    mDuration = duration;
   } else if (version == 1) {
-    mCreationTime = reader->ReadU64();
-    mModificationTime = reader->ReadU64();
-    mTrackId = reader->ReadU32();
-    uint32_t reserved = reader->ReadU32();
+    uint32_t trackId, reserved;
+    if (!reader->ReadU64(mCreationTime) ||
+        !reader->ReadU64(mModificationTime) ||
+        !reader->ReadU32(trackId) ||
+        !reader->ReadU32(reserved) ||
+        !reader->ReadU64(mDuration)) {
+      return;
+    }
     NS_ASSERTION(!reserved, "reserved should be 0");
-    mDuration = reader->ReadU64();
+    mTrackId = trackId;
   }
   // We don't care about whatever else may be in the box.
   mValid = true;
@@ -670,10 +742,13 @@ Mvhd::Mvhd(Box& aBox)
     LOG(Mdhd, "Incomplete Box (missing flags)");
     return;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
   uint8_t version = flags >> 24;
   size_t need =
-    3*(version ? sizeof(int64_t) : sizeof(int32_t)) + sizeof(uint32_t);
+    3 * (version ? sizeof(int64_t) : sizeof(int32_t)) + sizeof(uint32_t);
   if (reader->Remaining() < need) {
     LOG(Mvhd, "Incomplete Box (have:%lld need:%lld)",
         (uint64_t)reader->Remaining(), (uint64_t)need);
@@ -681,15 +756,23 @@ Mvhd::Mvhd(Box& aBox)
   }
 
   if (version == 0) {
-    mCreationTime = reader->ReadU32();
-    mModificationTime = reader->ReadU32();
-    mTimescale = reader->ReadU32();
-    mDuration = reader->ReadU32();
+    uint32_t createTime, modificationTime, duration;
+    if (!reader->ReadU32(createTime) ||
+        !reader->ReadU32(modificationTime) ||
+        !reader->ReadU32(mTimescale) ||
+        !reader->ReadU32(duration)) {
+      return;
+    }
+    mCreationTime = createTime;
+    mModificationTime = modificationTime;
+    mDuration = duration;
   } else if (version == 1) {
-    mCreationTime = reader->ReadU64();
-    mModificationTime = reader->ReadU64();
-    mTimescale = reader->ReadU32();
-    mDuration = reader->ReadU64();
+    if (!reader->ReadU64(mCreationTime) ||
+        !reader->ReadU64(mModificationTime) ||
+        !reader->ReadU32(mTimescale) ||
+        !reader->ReadU64(mDuration)) {
+      return;
+    }
   } else {
     return;
   }
@@ -707,18 +790,19 @@ Mdhd::Mdhd(Box& aBox)
 Trex::Trex(Box& aBox)
 {
   BoxReader reader(aBox);
-  if (reader->Remaining() < 6*sizeof(uint32_t)) {
+  if (reader->Remaining() < 6 * sizeof(uint32_t)) {
     LOG(Trex, "Incomplete Box (have:%lld need:%lld)",
         (uint64_t)reader->Remaining(), (uint64_t)6*sizeof(uint32_t));
     return;
   }
-  mFlags = reader->ReadU32();
-  mTrackId = reader->ReadU32();
-  mDefaultSampleDescriptionIndex = reader->ReadU32();
-  mDefaultSampleDuration = reader->ReadU32();
-  mDefaultSampleSize = reader->ReadU32();
-  mDefaultSampleFlags = reader->ReadU32();
-  mValid = true;
+  if (!reader->ReadU32(mFlags) ||
+      !reader->ReadU32(mTrackId) ||
+      !reader->ReadU32(mDefaultSampleDescriptionIndex) ||
+      !reader->ReadU32(mDefaultSampleDuration) ||
+      !reader->ReadU32(mDefaultSampleSize) ||
+      !reader->ReadU32(mDefaultSampleFlags)) {
+    return;
+  }
 }
 
 Tfhd::Tfhd(Box& aBox, Trex& aTrex)
@@ -733,7 +817,9 @@ Tfhd::Tfhd(Box& aBox, Trex& aTrex)
     LOG(Tfhd, "Incomplete Box (missing flags)");
     return;
   }
-  mFlags = reader->ReadU32();
+  if (!reader->ReadU32(mFlags)) {
+    return;
+  }
   size_t need = sizeof(uint32_t) /* trackid */;
   uint8_t flag[] = { 1, 2, 8, 0x10, 0x20, 0 };
   uint8_t flagSize[] = { sizeof(uint64_t), sizeof(uint32_t), sizeof(uint32_t), sizeof(uint32_t), sizeof(uint32_t) };
@@ -747,20 +833,34 @@ Tfhd::Tfhd(Box& aBox, Trex& aTrex)
         (uint64_t)reader->Remaining(), (uint64_t)need);
     return;
   }
-  mTrackId = reader->ReadU32();
-  mBaseDataOffset =
-    mFlags & 1 ? reader->ReadU64() : aBox.Parent()->Parent()->Offset();
+  if (!reader->ReadU32(mTrackId)) {
+    return;
+  }
+  mBaseDataOffset = aBox.Parent()->Parent()->Offset();
+  if (mFlags & 1) {
+    if (!reader->ReadU64(mBaseDataOffset)) {
+      return;
+    }
+  }
   if (mFlags & 2) {
-    mDefaultSampleDescriptionIndex = reader->ReadU32();
+    if (!reader->ReadU32(mDefaultSampleDescriptionIndex)) {
+      return;
+    }
   }
   if (mFlags & 8) {
-    mDefaultSampleDuration = reader->ReadU32();
+    if (!reader->ReadU32(mDefaultSampleDuration)) {
+      return;
+    }
   }
   if (mFlags & 0x10) {
-    mDefaultSampleSize = reader->ReadU32();
+    if (!reader->ReadU32(mDefaultSampleSize)) {
+      return;
+    }
   }
   if (mFlags & 0x20) {
-    mDefaultSampleFlags = reader->ReadU32();
+    if (!reader->ReadU32(mDefaultSampleFlags)) {
+      return;
+    }
   }
   mValid = true;
 }
@@ -772,7 +872,10 @@ Tfdt::Tfdt(Box& aBox)
     LOG(Tfdt, "Incomplete Box (missing flags)");
     return;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
   uint8_t version = flags >> 24;
   size_t need = version ? sizeof(uint64_t) : sizeof(uint32_t) ;
   if (reader->Remaining() < need) {
@@ -781,9 +884,15 @@ Tfdt::Tfdt(Box& aBox)
     return;
   }
   if (version == 0) {
-    mBaseMediaDecodeTime = reader->ReadU32();
+    uint32_t baseDecodeTime;
+    if (!reader->ReadU32(baseDecodeTime)) {
+      return;
+    }
+    mBaseMediaDecodeTime = baseDecodeTime;
   } else if (version == 1) {
-    mBaseMediaDecodeTime = reader->ReadU64();
+    if (!reader->ReadU64(mBaseMediaDecodeTime)) {
+      return;
+    }
   }
   mValid = true;
 }
@@ -802,7 +911,10 @@ Edts::Edts(Box& aBox)
     LOG(Edts, "Incomplete Box (missing flags)");
     return;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
   uint8_t version = flags >> 24;
   size_t need =
     sizeof(uint32_t) + 2*(version ? sizeof(int64_t) : sizeof(uint32_t));
@@ -812,16 +924,27 @@ Edts::Edts(Box& aBox)
     return;
   }
   bool emptyEntry = false;
-  uint32_t entryCount = reader->ReadU32();
+  uint32_t entryCount;
+  if (!reader->ReadU32(entryCount)) {
+    return;
+  }
   for (uint32_t i = 0; i < entryCount; i++) {
     uint64_t segment_duration;
     int64_t media_time;
     if (version == 1) {
-      segment_duration = reader->ReadU64();
-      media_time = reader->Read64();
+      if (!reader->ReadU64(segment_duration) ||
+          !reader->Read64(media_time)) {
+        return;
+      }
     } else {
-      segment_duration = reader->ReadU32();
-      media_time = reader->Read32();
+      uint32_t duration;
+      int32_t time;
+      if (!reader->ReadU32(duration) ||
+          !reader->Read32(time)) {
+        return;
+      }
+      segment_duration = duration;
+      media_time = time;
     }
     if (media_time == -1 && i) {
       LOG(Edts, "Multiple empty edit, not handled");
@@ -834,8 +957,12 @@ Edts::Edts(Box& aBox)
     } else {
       mMediaStart = media_time;
     }
-    reader->ReadU32(); // media_rate_integer and media_rate_fraction
+    // media_rate_integer and media_rate_fraction
+    if (!reader->Skip(4)) {
+      return;
+    }
   }
+  mValid = true;
 }
 
 Saiz::Saiz(Box& aBox, AtomType aDefaultType)
@@ -847,7 +974,10 @@ Saiz::Saiz(Box& aBox, AtomType aDefaultType)
     LOG(Saiz, "Incomplete Box (missing flags)");
     return;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
   uint8_t version = flags >> 24;
   size_t need =
     ((flags & 1) ? 2*sizeof(uint32_t) : 0) + sizeof(uint8_t) + sizeof(uint32_t);
@@ -857,11 +987,19 @@ Saiz::Saiz(Box& aBox, AtomType aDefaultType)
     return;
   }
   if (flags & 1) {
-    mAuxInfoType = reader->ReadU32();
-    mAuxInfoTypeParameter = reader->ReadU32();
+    uint32_t auxType;
+    if (!reader->ReadU32(auxType) ||
+        !reader->ReadU32(mAuxInfoTypeParameter)) {
+      return;
+    }
+    mAuxInfoType = auxType;
+  }
+  uint8_t defaultSampleInfoSize;
+  uint32_t count;
+  if (!reader->ReadU8(defaultSampleInfoSize) ||
+      !reader->ReadU32(count)) {
+    return;
   }
-  uint8_t defaultSampleInfoSize = reader->ReadU8();
-  uint32_t count = reader->ReadU32();
   if (defaultSampleInfoSize) {
     if (!mSampleInfoSize.SetLength(count, fallible)) {
       LOG(Saiz, "OOM");
@@ -886,19 +1024,29 @@ Saio::Saio(Box& aBox, AtomType aDefaultType)
     LOG(Saio, "Incomplete Box (missing flags)");
     return;
   }
-  uint32_t flags = reader->ReadU32();
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
   uint8_t version = flags >> 24;
-  size_t need = ((flags & 1) ? (2*sizeof(uint32_t)) : 0) + sizeof(uint32_t);
+  size_t need = ((flags & 1) ? (2 * sizeof(uint32_t)) : 0) + sizeof(uint32_t);
   if (reader->Remaining() < need) {
     LOG(Saio, "Incomplete Box (have:%lld need:%lld)",
         (uint64_t)reader->Remaining(), (uint64_t)need);
     return;
   }
   if (flags & 1) {
-    mAuxInfoType = reader->ReadU32();
-    mAuxInfoTypeParameter = reader->ReadU32();
+    uint32_t auxType;
+    if (!reader->ReadU32(auxType) ||
+        !reader->ReadU32(mAuxInfoTypeParameter)) {
+      return;
+    }
+    mAuxInfoType = auxType;
+  }
+  uint32_t count;
+  if (!reader->ReadU32(count)) {
+    return;
   }
-  size_t count = reader->ReadU32();
   need = (version ? sizeof(uint64_t) : sizeof(uint32_t)) * count;
   if (reader->Remaining() < need) {
     LOG(Saio, "Incomplete Box (have:%lld need:%lld)",
@@ -910,16 +1058,203 @@ Saio::Saio(Box& aBox, AtomType aDefaultType)
     return;
   }
   if (version == 0) {
+    uint32_t offset;
     for (size_t i = 0; i < count; i++) {
-      MOZ_ALWAYS_TRUE(mOffsets.AppendElement(reader->ReadU32(), fallible));
+      if (!reader->ReadU32(offset)) {
+        return;
+      }
+      MOZ_ALWAYS_TRUE(mOffsets.AppendElement(offset, fallible));
     }
   } else {
+    uint64_t offset;
     for (size_t i = 0; i < count; i++) {
-      MOZ_ALWAYS_TRUE(mOffsets.AppendElement(reader->ReadU64(), fallible));
+      if (!reader->ReadU64(offset)) {
+        return;
+      }
+      MOZ_ALWAYS_TRUE(mOffsets.AppendElement(offset, fallible));
+    }
+  }
+  mValid = true;
+}
+
+Sbgp::Sbgp(Box& aBox)
+{
+  BoxReader reader(aBox);
+
+  if (!reader->CanReadType<uint32_t>()) {
+    LOG(Sbgp, "Incomplete Box (missing flags)");
+    return;
+  }
+
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
+  const uint8_t version = flags >> 24;
+  flags = flags & 0xffffff;
+
+  // Make sure we have enough bytes to read as far as the count.
+  uint32_t need = (version == 1 ? sizeof(uint32_t) : 0) + sizeof(uint32_t) * 2;
+  if (reader->Remaining() < need) {
+    LOG(Sbgp, "Incomplete Box (have:%lld, need:%lld)",
+        (uint64_t)reader->Remaining(), (uint64_t)need);
+    return;
+  }
+
+  uint32_t groupType;
+  if (!reader->ReadU32(groupType)) {
+    return;
+  }
+  mGroupingType = groupType;
+
+  if (version == 1) {
+    if (reader->ReadU32(mGroupingTypeParam)) {
+      false;
+    }
+  }
+
+  uint32_t count;
+  if (!reader->ReadU32(count)) {
+    return;
+  }
+
+  // Make sure we can read all the entries.
+  need = sizeof(uint32_t) * 2 * count;
+  if (reader->Remaining() < need) {
+    LOG(Sbgp, "Incomplete Box (have:%lld, need:%lld). Failed to read entries",
+        (uint64_t)reader->Remaining(), (uint64_t)need);
+    return;
+  }
+
+  for (uint32_t i = 0; i < count; i++) {
+    uint32_t sampleCount;
+    uint32_t groupDescriptionIndex;
+    if (!reader->ReadU32(sampleCount) ||
+        !reader->ReadU32(groupDescriptionIndex)) {
+      return;
     }
+
+    SampleToGroupEntry entry(sampleCount, groupDescriptionIndex);
+    mEntries.AppendElement(entry);
   }
+
   mValid = true;
 }
 
+Sgpd::Sgpd(Box& aBox)
+{
+  BoxReader reader(aBox);
+
+  if (!reader->CanReadType<uint32_t>()) {
+    LOG(Sgpd, "Incomplete Box (missing flags)");
+    return;
+  }
+
+  uint32_t flags;
+  if (!reader->ReadU32(flags)) {
+    return;
+  }
+  const uint8_t version = flags >> 24;
+  flags = flags & 0xffffff;
+
+  uint32_t need = ((flags & 1) ? sizeof(uint32_t) : 0) + sizeof(uint32_t) * 2;
+  if (reader->Remaining() < need) {
+    LOG(Sgpd, "Incomplete Box (have:%lld need:%lld)",
+        (uint64_t)reader->Remaining(), (uint64_t)need);
+    return;
+  }
+
+  uint32_t groupType;
+  if (!reader->ReadU32(groupType)) {
+    return;
+  }
+  mGroupingType = groupType;
+
+  const uint32_t entrySize = sizeof(uint32_t) + kKeyIdSize;
+  uint32_t defaultLength = 0;
+
+  if (version == 1) {
+    if (!reader->ReadU32(defaultLength)) {
+      return;
+    }
+    if (defaultLength < entrySize && defaultLength != 0) {
+      return;
+    }
+  }
+
+  uint32_t count;
+  if (!reader->ReadU32(count)) {
+    return;
+  }
+
+  // Make sure we have sufficient remaining bytes to read the entries.
+  need =
+    count * (sizeof(uint32_t) * (version == 1 && defaultLength == 0 ? 2 : 1) +
+             kKeyIdSize * sizeof(uint8_t));
+  if (reader->Remaining() < need) {
+    LOG(Sgpd, "Incomplete Box (have:%lld need:%lld). Failed to read entries",
+        (uint64_t)reader->Remaining(), (uint64_t)need);
+    return;
+  }
+  for (uint32_t i = 0; i < count; ++i) {
+    if (version == 1 && defaultLength == 0) {
+      uint32_t descriptionLength;
+      if (!reader->ReadU32(descriptionLength)) {
+        return;
+      }
+      if (descriptionLength < entrySize) {
+        return;
+      }
+    }
+
+    CencSampleEncryptionInfoEntry entry;
+    bool valid = entry.Init(reader);
+    if (!valid) {
+      return;
+    }
+    mEntries.AppendElement(entry);
+  }
+
+  mValid = true;
+}
+
+bool CencSampleEncryptionInfoEntry::Init(BoxReader& aReader)
+{
+  // Skip a reserved byte.
+  uint8_t skip;
+  if (!aReader->ReadU8(skip)) {
+    return false;
+  }
+
+  uint8_t possiblePatternInfo;
+  uint8_t flag;
+  if (!aReader->ReadU8(possiblePatternInfo) ||
+      !aReader->ReadU8(flag) ||
+      !aReader->ReadU8(mIVSize)) {
+    return false;
+  }
+
+  // Read the key id.
+  uint8_t key;
+  for (uint32_t i = 0; i < kKeyIdSize; ++i) {
+    if (!aReader->ReadU8(key)) {
+      return false;
+    }
+    mKeyId.AppendElement(key);
+  }
+
+  mIsEncrypted = flag != 0;
+
+  if (mIsEncrypted) {
+    if (mIVSize != 8 && mIVSize != 16) {
+      return false;
+    }
+  } else if (mIVSize != 0) {
+    return false;
+  }
+
+  return true;
+}
+
 #undef LOG
 }
diff --git a/media/libstagefright/binding/SinfParser.cpp b/media/libstagefright/binding/SinfParser.cpp
index 5cf3aa553..5f3a2889e 100644
--- a/media/libstagefright/binding/SinfParser.cpp
+++ b/media/libstagefright/binding/SinfParser.cpp
@@ -39,8 +39,13 @@ SinfParser::ParseSchm(Box& aBox)
     return;
   }
 
-  mozilla::Unused << reader->ReadU32(); // flags -- ignore
-  mSinf.mDefaultEncryptionType = reader->ReadU32();
+  uint32_t type;
+  if (!reader->Skip(4) ||
+      !reader->ReadU32(type)) {
+    NS_WARNING("Failed to parse schm data");
+    return;
+  }
+  mSinf.mDefaultEncryptionType = type;
 }
 
 void
@@ -62,11 +67,16 @@ SinfParser::ParseTenc(Box& aBox)
     return;
   }
 
-  mozilla::Unused << reader->ReadU32(); // flags -- ignore
-
-  uint32_t isEncrypted = reader->ReadU24();
-  mSinf.mDefaultIVSize = reader->ReadU8();
-  memcpy(mSinf.mDefaultKeyID, reader->Read(16), 16);
+  uint32_t isEncrypted;
+  const uint8_t* key;
+  if (!reader->Skip(4) ||  // flags -- ignore
+      !reader->ReadU24(isEncrypted) ||
+      !reader->ReadU8(mSinf.mDefaultIVSize) ||
+      !reader->Read(16, &key)) {
+    NS_WARNING("Failed to parse tenc data");
+    return;
+  }
+  memcpy(mSinf.mDefaultKeyID, key, 16);
 }
 
 }
diff --git a/media/libstagefright/binding/include/mp4_demuxer/Box.h b/media/libstagefright/binding/include/mp4_demuxer/Box.h
index f53404a1d..6612f6b49 100644
--- a/media/libstagefright/binding/include/mp4_demuxer/Box.h
+++ b/media/libstagefright/binding/include/mp4_demuxer/Box.h
@@ -12,7 +12,7 @@
 #include "MediaResource.h"
 #include "mozilla/EndianUtils.h"
 #include "mp4_demuxer/AtomType.h"
-#include "mp4_demuxer/ByteReader.h"
+#include "mp4_demuxer/BufferReader.h"
 
 using namespace mozilla;
 
@@ -73,11 +73,11 @@ public:
     , mReader(mBuffer.Elements(), mBuffer.Length())
   {
   }
-  ByteReader* operator->() { return &mReader; }
+  BufferReader* operator->() { return &mReader; }
 
 private:
   nsTArray<uint8_t> mBuffer;
-  ByteReader mReader;
+  BufferReader mReader;
 };
 }
 
diff --git a/media/libstagefright/binding/include/mp4_demuxer/BufferReader.h b/media/libstagefright/binding/include/mp4_demuxer/BufferReader.h
new file mode 100644
index 000000000..160c97fa0
--- /dev/null
+++ b/media/libstagefright/binding/include/mp4_demuxer/BufferReader.h
@@ -0,0 +1,225 @@
+/* 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 BUFFER_READER_H_
+#define BUFFER_READER_H_
+
+#include "mozilla/EndianUtils.h"
+#include "mozilla/Vector.h"
+#include "nsTArray.h"
+#include "MediaData.h"
+
+namespace mp4_demuxer {
+
+class MOZ_RAII BufferReader
+{
+public:
+  BufferReader() : mPtr(nullptr), mRemaining(0) {}
+  explicit BufferReader(const mozilla::Vector<uint8_t>& aData)
+    : mPtr(aData.begin()), mRemaining(aData.length()), mLength(aData.length())
+  {
+  }
+  BufferReader(const uint8_t* aData, size_t aSize)
+    : mPtr(aData), mRemaining(aSize), mLength(aSize)
+  {
+  }
+  template<size_t S>
+  explicit BufferReader(const AutoTArray<uint8_t, S>& aData)
+    : mPtr(aData.Elements()), mRemaining(aData.Length()), mLength(aData.Length())
+  {
+  }
+  explicit BufferReader(const nsTArray<uint8_t>& aData)
+    : mPtr(aData.Elements()), mRemaining(aData.Length()), mLength(aData.Length())
+  {
+  }
+  explicit BufferReader(const mozilla::MediaByteBuffer* aData)
+    : mPtr(aData->Elements()), mRemaining(aData->Length()), mLength(aData->Length())
+  {
+  }
+
+  void SetData(const nsTArray<uint8_t>& aData)
+  {
+    MOZ_ASSERT(!mPtr && !mRemaining);
+    mPtr = aData.Elements();
+    mRemaining = aData.Length();
+    mLength = mRemaining;
+  }
+
+  ~BufferReader()
+  {
+  }
+
+  size_t Offset() const
+  {
+    return mLength - mRemaining;
+  }
+
+  size_t Remaining() const { return mRemaining; }
+
+  bool CanRead8() const { return mRemaining >= 1; }
+
+  bool ReadU8(uint8_t& aU8)
+  {
+    const uint8_t* ptr;
+    if (!Read(1, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return false;
+    }
+    aU8 = *ptr;
+    return true;
+  }
+
+  bool CanRead16() { return mRemaining >= 2; }
+
+  bool ReadU16(uint16_t& u16)
+  {
+    const uint8_t* ptr;
+    if (!Read(2, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return false;
+    }
+    u16 = mozilla::BigEndian::readUint16(ptr);
+    return true;
+  }
+
+  bool CanRead32() { return mRemaining >= 4; }
+
+  bool ReadU32(uint32_t& u32)
+  {
+    const uint8_t* ptr;
+    if (!Read(4, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return false;
+    }
+    u32 = mozilla::BigEndian::readUint32(ptr);
+    return true;
+  }
+
+  bool Read32(int32_t& i32)
+  {
+    const uint8_t* ptr;
+    if (!Read(4, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return 0;
+    }
+    i32 = mozilla::BigEndian::readInt32(ptr);
+    return true;
+  }
+
+  bool ReadU64(uint64_t& u64)
+  {
+    const uint8_t* ptr;
+    if (!Read(8, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return false;
+    }
+    u64 = mozilla::BigEndian::readUint64(ptr);
+    return true;
+  }
+
+  bool Read64(int64_t& i64)
+  {
+    const uint8_t* ptr;
+    if (!Read(8, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return false;
+    }
+    i64 = mozilla::BigEndian::readInt64(ptr);
+    return true;
+  }
+
+  bool ReadU24(uint32_t& u32)
+  {
+    const uint8_t* ptr;
+    if (!Read(3, &ptr)) {
+      NS_WARNING("Failed to read data");
+      return false;
+    }
+    u32 = ptr[0] << 16 | ptr[1] << 8 | ptr[2];
+    return true;
+  }
+
+  bool Skip(size_t aCount)
+  {
+    const uint8_t* ptr;
+    if (!Read(aCount, &ptr)) {
+      NS_WARNING("Failed to skip data");
+      return false;
+    }
+    return true;
+  }
+
+  bool Read(size_t aCount, const uint8_t** aPtr)
+  {
+    if (aCount > mRemaining) {
+      mRemaining = 0;
+      return false;
+    }
+    mRemaining -= aCount;
+
+    *aPtr = mPtr;
+    mPtr += aCount;
+
+    return true;
+  }
+
+  uint32_t Align() const
+  {
+    return 4 - ((intptr_t)mPtr & 3);
+  }
+
+  template <typename T> bool CanReadType() const { return mRemaining >= sizeof(T); }
+
+  template <typename T> T ReadType()
+  {
+    const uint8_t* ptr;
+    if (!Read(sizeof(T), &ptr)) {
+      NS_WARNING("ReadType failed");
+      return 0;
+    }
+    return *reinterpret_cast<const T*>(ptr);
+  }
+
+  template <typename T>
+  MOZ_MUST_USE bool ReadArray(nsTArray<T>& aDest, size_t aLength)
+  {
+    const uint8_t* ptr;
+    if (!Read(aLength * sizeof(T), &ptr)) {
+      NS_WARNING("ReadArray failed");
+      return false;
+    }
+
+    aDest.Clear();
+    aDest.AppendElements(reinterpret_cast<const T*>(ptr), aLength);
+    return true;
+  }
+
+  template <typename T>
+  MOZ_MUST_USE bool ReadArray(FallibleTArray<T>& aDest, size_t aLength)
+  {
+    const uint8_t* ptr;
+    if (!Read(aLength * sizeof(T), &ptr)) {
+      NS_WARNING("ReadArray failed");
+      return false;
+    }
+
+    aDest.Clear();
+    if (!aDest.SetCapacity(aLength, mozilla::fallible)) {
+      return false;
+    }
+    MOZ_ALWAYS_TRUE(aDest.AppendElements(reinterpret_cast<const T*>(ptr),
+                                         aLength,
+                                         mozilla::fallible));
+    return true;
+  }
+
+private:
+  const uint8_t* mPtr;
+  size_t mRemaining;
+  size_t mLength;
+};
+
+} // namespace mp4_demuxer
+
+#endif
diff --git a/media/libstagefright/binding/include/mp4_demuxer/ByteReader.h b/media/libstagefright/binding/include/mp4_demuxer/ByteReader.h
index 9c7df04bd..f316daa41 100644
--- a/media/libstagefright/binding/include/mp4_demuxer/ByteReader.h
+++ b/media/libstagefright/binding/include/mp4_demuxer/ByteReader.h
@@ -63,7 +63,7 @@ public:
   {
     auto ptr = Read(1);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return *ptr;
@@ -75,7 +75,7 @@ public:
   {
     auto ptr = Read(2);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return mozilla::BigEndian::readUint16(ptr);
@@ -85,7 +85,7 @@ public:
   {
     auto ptr = Read(2);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return mozilla::LittleEndian::readInt16(ptr);
@@ -95,7 +95,7 @@ public:
   {
     auto ptr = Read(3);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return ptr[0] << 16 | ptr[1] << 8 | ptr[2];
@@ -110,7 +110,7 @@ public:
   {
     auto ptr = Read(3);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     int32_t result = int32_t(ptr[2] << 16 | ptr[1] << 8 | ptr[0]);
@@ -126,7 +126,7 @@ public:
   {
     auto ptr = Read(4);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return mozilla::BigEndian::readUint32(ptr);
@@ -136,7 +136,7 @@ public:
   {
     auto ptr = Read(4);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return mozilla::BigEndian::readInt32(ptr);
@@ -146,7 +146,7 @@ public:
   {
     auto ptr = Read(8);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return mozilla::BigEndian::readUint64(ptr);
@@ -156,7 +156,7 @@ public:
   {
     auto ptr = Read(8);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to read data");
       return 0;
     }
     return mozilla::BigEndian::readInt64(ptr);
@@ -192,7 +192,7 @@ public:
   {
     auto ptr = Peek(1);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return *ptr;
@@ -202,7 +202,7 @@ public:
   {
     auto ptr = Peek(2);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return mozilla::BigEndian::readUint16(ptr);
@@ -212,7 +212,7 @@ public:
   {
     auto ptr = Peek(3);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return ptr[0] << 16 | ptr[1] << 8 | ptr[2];
@@ -227,7 +227,7 @@ public:
   {
     auto ptr = Peek(4);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return mozilla::BigEndian::readUint32(ptr);
@@ -237,7 +237,7 @@ public:
   {
     auto ptr = Peek(4);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return mozilla::BigEndian::readInt32(ptr);
@@ -247,7 +247,7 @@ public:
   {
     auto ptr = Peek(8);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return mozilla::BigEndian::readUint64(ptr);
@@ -257,7 +257,7 @@ public:
   {
     auto ptr = Peek(8);
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Failed to peek data");
       return 0;
     }
     return mozilla::BigEndian::readInt64(ptr);
@@ -274,7 +274,7 @@ public:
   const uint8_t* Seek(size_t aOffset)
   {
     if (aOffset >= mLength) {
-      MOZ_ASSERT(false);
+      NS_WARNING("Seek failed");
       return nullptr;
     }
 
@@ -301,7 +301,7 @@ public:
   {
     auto ptr = Read(sizeof(T));
     if (!ptr) {
-      MOZ_ASSERT(false);
+      NS_WARNING("ReadType failed");
       return 0;
     }
     return *reinterpret_cast<const T*>(ptr);
@@ -312,6 +312,7 @@ public:
   {
     auto ptr = Read(aLength * sizeof(T));
     if (!ptr) {
+      NS_WARNING("ReadArray failed");
       return false;
     }
 
@@ -325,6 +326,7 @@ public:
   {
     auto ptr = Read(aLength * sizeof(T));
     if (!ptr) {
+      NS_WARNING("ReadArray failed");
       return false;
     }
 
diff --git a/media/libstagefright/binding/include/mp4_demuxer/Index.h b/media/libstagefright/binding/include/mp4_demuxer/Index.h
index d566c9459..ca254f73d 100644
--- a/media/libstagefright/binding/include/mp4_demuxer/Index.h
+++ b/media/libstagefright/binding/include/mp4_demuxer/Index.h
@@ -32,6 +32,9 @@ public:
   Microseconds GetNextKeyframeTime();
 private:
   Sample* Get();
+
+  CencSampleEncryptionInfoEntry* GetSampleEncryptionEntry();
+
   void Next();
   RefPtr<Index> mIndex;
   friend class Index;
diff --git a/media/libstagefright/binding/include/mp4_demuxer/MoofParser.h b/media/libstagefright/binding/include/mp4_demuxer/MoofParser.h
index 814f806fc..bb895555c 100644
--- a/media/libstagefright/binding/include/mp4_demuxer/MoofParser.h
+++ b/media/libstagefright/binding/include/mp4_demuxer/MoofParser.h
@@ -17,6 +17,7 @@ typedef int64_t Microseconds;
 
 class Box;
 class BoxContext;
+class BoxReader;
 class Moof;
 
 class Mvhd : public Atom
@@ -160,6 +161,53 @@ public:
   FallibleTArray<uint64_t> mOffsets;
 };
 
+struct SampleToGroupEntry
+{
+public:
+  static const uint32_t kTrackGroupDescriptionIndexBase = 0;
+  static const uint32_t kFragmentGroupDescriptionIndexBase = 0x10000;
+
+  SampleToGroupEntry(uint32_t aSampleCount, uint32_t aGroupDescriptionIndex)
+    : mSampleCount(aSampleCount)
+    , mGroupDescriptionIndex(aGroupDescriptionIndex)
+    {
+    }
+
+  uint32_t mSampleCount;
+  uint32_t mGroupDescriptionIndex;
+};
+
+class Sbgp final : public Atom // SampleToGroup box.
+{
+public:
+  explicit Sbgp(Box& aBox);
+
+  AtomType mGroupingType;
+  uint32_t mGroupingTypeParam;
+  nsTArray<SampleToGroupEntry> mEntries;
+};
+
+struct CencSampleEncryptionInfoEntry final
+{
+public:
+  CencSampleEncryptionInfoEntry() { }
+
+  bool Init(BoxReader& aReader);
+
+  bool mIsEncrypted = false;
+  uint8_t mIVSize = 0;
+  nsTArray<uint8_t> mKeyId;
+};
+
+class Sgpd final : public Atom // SampleGroupDescription box.
+{
+public:
+  explicit Sgpd(Box& aBox);
+
+  AtomType mGroupingType;
+  nsTArray<CencSampleEncryptionInfoEntry> mEntries;
+};
+
 class AuxInfo {
 public:
   AuxInfo(int64_t aMoofOffset, Saiz& aSaiz, Saio& aSaio);
@@ -182,6 +230,9 @@ public:
   Interval<Microseconds> mTimeRange;
   FallibleTArray<Sample> mIndex;
 
+  nsTArray<CencSampleEncryptionInfoEntry> mFragmentSampleEncryptionInfoEntries;
+  nsTArray<SampleToGroupEntry> mFragmentSampleToGroupEntries;
+
   nsTArray<Saiz> mSaizs;
   nsTArray<Saio> mSaios;
 
@@ -246,6 +297,10 @@ public:
   Tfdt mTfdt;
   Edts mEdts;
   Sinf mSinf;
+
+  nsTArray<CencSampleEncryptionInfoEntry> mTrackSampleEncryptionInfoEntries;
+  nsTArray<SampleToGroupEntry> mTrackSampleToGroupEntries;
+
   nsTArray<Moof>& Moofs() { return mMoofs; }
 private:
   void ScanForMetadata(mozilla::MediaByteRange& aFtyp,
diff --git a/media/libstagefright/frameworks/av/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/frameworks/av/media/libstagefright/MPEG4Extractor.cpp
index e881e0262..5667f04d8 100644
--- a/media/libstagefright/frameworks/av/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/frameworks/av/media/libstagefright/MPEG4Extractor.cpp
@@ -753,7 +753,6 @@ status_t MPEG4Extractor::parseChunk(off64_t *offset, int depth) {
         case FOURCC('m', 'o', 'o', 'f'):
         case FOURCC('t', 'r', 'a', 'f'):
         case FOURCC('m', 'f', 'r', 'a'):
-        case FOURCC('u', 'd', 't', 'a'):
         case FOURCC('i', 'l', 's', 't'):
         case FOURCC('s', 'i', 'n', 'f'):
         case FOURCC('s', 'c', 'h', 'i'):
diff --git a/media/libstagefright/moz.build b/media/libstagefright/moz.build
index c6072d840..5a8c9521a 100644
--- a/media/libstagefright/moz.build
+++ b/media/libstagefright/moz.build
@@ -53,6 +53,7 @@ EXPORTS.mp4_demuxer += [
     'binding/include/mp4_demuxer/Atom.h',
     'binding/include/mp4_demuxer/AtomType.h',
     'binding/include/mp4_demuxer/BitReader.h',
+    'binding/include/mp4_demuxer/BufferReader.h',
     'binding/include/mp4_demuxer/BufferStream.h',
     'binding/include/mp4_demuxer/ByteReader.h',
     'binding/include/mp4_demuxer/ByteWriter.h',