media/libvpx/vp9/common/vp9_sadmxn.h

Thu, 15 Jan 2015 15:59:08 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 15:59:08 +0100
branch
TOR_BUG_9701
changeset 10
ac0c01689b40
permissions
-rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /*
     2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
     3  *
     4  *  Use of this source code is governed by a BSD-style license
     5  *  that can be found in the LICENSE file in the root of the source
     6  *  tree. An additional intellectual property rights grant can be found
     7  *  in the file PATENTS.  All contributing project authors may
     8  *  be found in the AUTHORS file in the root of the source tree.
     9  */
    11 #ifndef VP9_COMMON_VP9_SADMXN_H_
    12 #define VP9_COMMON_VP9_SADMXN_H_
    14 #include "./vpx_config.h"
    15 #include "vpx/vpx_integer.h"
    17 static INLINE unsigned int sad_mx_n_c(const uint8_t *src_ptr,
    18                                       int src_stride,
    19                                       const uint8_t *ref_ptr,
    20                                       int ref_stride,
    21                                       int m,
    22                                       int n) {
    23   int r, c;
    24   unsigned int sad = 0;
    26   for (r = 0; r < n; r++) {
    27     for (c = 0; c < m; c++) {
    28       sad += abs(src_ptr[c] - ref_ptr[c]);
    29     }
    31     src_ptr += src_stride;
    32     ref_ptr += ref_stride;
    33   }
    35   return sad;
    36 }
    38 #endif  // VP9_COMMON_VP9_SADMXN_H_

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