Parse ELNG box in MP4 container

media/formats/mp4/box_reader.h

 // 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.
 
 #ifndef MEDIA_FORMATS_MP4_BOX_READER_H_
 #define MEDIA_FORMATS_MP4_BOX_READER_H_
 
 #include <stdint.h>
 
 #include <limits>
@@ skipping 45 matching lines @@
   bool Read2s(int16_t* v) WARN_UNUSED_RESULT;
   bool Read4(uint32_t* v) WARN_UNUSED_RESULT;
   bool Read4s(int32_t* v) WARN_UNUSED_RESULT;
   bool Read8(uint64_t* v) WARN_UNUSED_RESULT;
   bool Read8s(int64_t* v) WARN_UNUSED_RESULT;
 
   bool ReadFourCC(FourCC* v) WARN_UNUSED_RESULT;
 
   bool ReadVec(std::vector<uint8_t>* t, uint64_t count) WARN_UNUSED_RESULT;
 
+  // Read a null-terminated string.
+  bool ReadString(std::string* v) WARN_UNUSED_RESULT;
+
   // These variants read a 4-byte integer of the corresponding signedness and
   // store it in the 8-byte return type.
   bool Read4Into8(uint64_t* v) WARN_UNUSED_RESULT;
   bool Read4sInto8s(int64_t* v) WARN_UNUSED_RESULT;
 
   // Advance the stream by this many bytes.
   bool SkipBytes(uint64_t nbytes) WARN_UNUSED_RESULT;
 
   const uint8_t* data() const { return buf_; }
 
@@ skipping 199 matching lines @@
     pos_ += child_reader.size();
   }
 
   return !err;
 }
 
 }  // namespace mp4
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_MP4_BOX_READER_H_