Add H264 bitstream rewriting to limit frame reordering marker in header

webrtc/base/bitbuffer.h

 /*
  *  Copyright 2015 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 91 matching lines @@
   bool WriteUInt16(uint16_t val);
   bool WriteUInt32(uint32_t val);
 
   // Writes bit-sized values to the buffer. Returns false if there isn't enough
   // room left for the specified number of bits.
   bool WriteBits(uint64_t val, size_t bit_count);
 
   // Writes the exponential golomb encoded version of the supplied value.
   // Returns false if there isn't enough room left for the value.
   bool WriteExponentialGolomb(uint32_t val);
+  // Writes the signed exponential golomb version of the supplied value.
+  // Signed exponential golomb values are just the unsigned values mapped to the
+  // sequence 0, 1, -1, 2, -2, etc. in order.
+  bool WriteSignedExponentialGolomb(int32_t val);
 
  private:
   // The buffer, as a writable array.
   uint8_t* const writable_bytes_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(BitBufferWriter);
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_BITBUFFER_H_