libvpx: Pull from upstream

source/libvpx/vpx_dsp/x86/quantize_sse2.c

 /*
  *  Copyright (c) 2015 The WebM 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.
  */
 
 #include <emmintrin.h>
 #include <xmmintrin.h>
 
 #include "./vpx_dsp_rtcd.h"
 #include "vpx/vpx_integer.h"
 
-void vp9_quantize_b_sse2(const int16_t* coeff_ptr, intptr_t n_coeffs,
+void vpx_quantize_b_sse2(const int16_t* coeff_ptr, intptr_t n_coeffs,
                          int skip_block, const int16_t* zbin_ptr,
                          const int16_t* round_ptr, const int16_t* quant_ptr,
                          const int16_t* quant_shift_ptr, int16_t* qcoeff_ptr,
                          int16_t* dqcoeff_ptr, const int16_t* dequant_ptr,
                          uint16_t* eob_ptr,
                          const int16_t* scan_ptr,
                          const int16_t* iscan_ptr) {
   __m128i zero;
   (void)scan_ptr;
 
@@ skipping 186 matching lines @@
     do {
       _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero);
       _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero);
       _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero);
       _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero);
       n_coeffs += 8 * 2;
     } while (n_coeffs < 0);
     *eob_ptr = 0;
   }
 }