libvpx: Pull from upstream

source/libvpx/vp8/encoder/ethreading.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.
  */
 
 #include "onyx_int.h"
 #include "vp8/common/threading.h"
 #include "vp8/common/common.h"
 #include "vp8/common/extend.h"
 #include "bitstream.h"
 #include "encodeframe.h"
 
 #if CONFIG_MULTITHREAD
 
 extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x, int ok_to_skip);
 
-extern void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm);
-
 static THREAD_FUNCTION thread_loopfilter(void *p_data)
 {
     VP8_COMP *cpi = (VP8_COMP *)(((LPFTHREAD_DATA *)p_data)->ptr1);
     VP8_COMMON *cm = &cpi->common;
 
     while (1)
     {
         if (cpi->b_multi_threaded == 0)
             break;
 
@@ skipping 629 matching lines @@
         sem_destroy(&cpi->h_event_start_lpf);
 
         /* free thread related resources */
         vpx_free(cpi->h_event_start_encoding);
         vpx_free(cpi->h_encoding_thread);
         vpx_free(cpi->mb_row_ei);
         vpx_free(cpi->en_thread_data);
     }
 }
 #endif