Read directly from 'senc' box when 'senc' box is present

media/formats/mp4/box_definitions.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/formats/mp4/box_definitions.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 1186 matching lines @@
   }
   return true;
 }
 
 TrackFragment::TrackFragment() {}
 TrackFragment::TrackFragment(const TrackFragment& other) = default;
 TrackFragment::~TrackFragment() {}
 FourCC TrackFragment::BoxType() const { return FOURCC_TRAF; }
 
 bool TrackFragment::Parse(BoxReader* reader) {
-  RCHECK(reader->ScanChildren() &&
-         reader->ReadChild(&header) &&
+  RCHECK(reader->ScanChildren() && reader->ReadChild(&header) &&
          // Media Source specific: 'tfdt' required
-         reader->ReadChild(&decode_time) &&
-         reader->MaybeReadChildren(&runs) &&
+         reader->ReadChild(&decode_time) && reader->MaybeReadChildren(&runs) &&
          reader->MaybeReadChild(&auxiliary_offset) &&
          reader->MaybeReadChild(&auxiliary_size) &&
-         reader->MaybeReadChild(&sdtp));
+         reader->MaybeReadChild(&sdtp) &&
+         reader->MaybeReadChild(&sample_encryption));
 
   // There could be multiple SampleGroupDescription and SampleToGroup boxes with
   // different grouping types. For common encryption, the relevant grouping type
   // is 'seig'. Continue reading until 'seig' is found, or until running out of
   // child boxes.
   while (reader->HasChild(&sample_group_description)) {
     RCHECK(reader->ReadChild(&sample_group_description));
     if (sample_group_description.grouping_type == FOURCC_SEIG)
       break;
     sample_group_description.entries.clear();
@@ skipping 49 matching lines @@
 SampleDependsOn IndependentAndDisposableSamples::sample_depends_on(
     size_t i) const {
   if (i >= sample_depends_on_.size())
     return kSampleDependsOnUnknown;
 
   return sample_depends_on_[i];
 }
 
 }  // namespace mp4
 }  // namespace media