libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_ratectrl.c

 /*
  *  Copyright (c) 2010 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.
  */
 
@@ skipping 408 matching lines @@
         vp9_cyclic_refresh_estimate_bits_at_q(cpi, rate_correction_factor);
   } else {
     projected_size_based_on_q = vp9_estimate_bits_at_q(cpi->common.frame_type,
                                                        cm->base_qindex,
                                                        cm->MBs,
                                                        rate_correction_factor,
                                                        cm->bit_depth);
   }
   // Work out a size correction factor.
   if (projected_size_based_on_q > FRAME_OVERHEAD_BITS)
-    correction_factor = (100 * cpi->rc.projected_frame_size) /
-                            projected_size_based_on_q;
+    correction_factor = (int)((100 * (int64_t)cpi->rc.projected_frame_size) /
+                        projected_size_based_on_q);
 
   // More heavily damped adjustment used if we have been oscillating either side
   // of target.
   switch (damp_var) {
     case 0:
       adjustment_limit = 0.75;
       break;
     case 1:
       adjustment_limit = 0.25 +
           0.5 * MIN(1, fabs(log10(0.01 * correction_factor)));
@@ skipping 1217 matching lines @@
 
 void vp9_set_target_rate(VP9_COMP *cpi) {
   RATE_CONTROL *const rc = &cpi->rc;
   int target_rate = rc->base_frame_target;
 
   // Correction to rate target based on prior over or under shoot.
   if (cpi->oxcf.rc_mode == VPX_VBR)
     vbr_rate_correction(cpi, &target_rate, rc->vbr_bits_off_target);
   vp9_rc_set_frame_target(cpi, target_rate);
 }