media/libvpx/vp8/encoder/rdopt.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  */
    12 #ifndef __INC_RDOPT_H
    13 #define __INC_RDOPT_H
    15 #define RDCOST(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )
    17 static void insertsortmv(int arr[], int len)
    18 {
    19     int i, j, k;
    21     for ( i = 1 ; i <= len-1 ; i++ )
    22     {
    23         for ( j = 0 ; j < i ; j++ )
    24         {
    25             if ( arr[j] > arr[i] )
    26             {
    27                 int temp;
    29                 temp = arr[i];
    31                 for ( k = i; k >j; k--)
    32                     arr[k] = arr[k - 1] ;
    34                 arr[j] = temp ;
    35             }
    36         }
    37     }
    38 }
    40 static void insertsortsad(int arr[],int idx[], int len)
    41 {
    42     int i, j, k;
    44     for ( i = 1 ; i <= len-1 ; i++ )
    45     {
    46         for ( j = 0 ; j < i ; j++ )
    47         {
    48             if ( arr[j] > arr[i] )
    49             {
    50                 int temp, tempi;
    52                 temp = arr[i];
    53                 tempi = idx[i];
    55                 for ( k = i; k >j; k--)
    56                 {
    57                     arr[k] = arr[k - 1] ;
    58                     idx[k] = idx[k - 1];
    59                 }
    61                 arr[j] = temp ;
    62                 idx[j] = tempi;
    63             }
    64         }
    65     }
    66 }
    68 extern void vp8_initialize_rd_consts(VP8_COMP *cpi, MACROBLOCK *x, int Qvalue);
    69 extern void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra);
    70 extern void vp8_rd_pick_intra_mode(MACROBLOCK *x, int *rate);
    73 static void get_plane_pointers(const YV12_BUFFER_CONFIG *fb,
    74                                unsigned char            *plane[3],
    75                                unsigned int              recon_yoffset,
    76                                unsigned int              recon_uvoffset)
    77 {
    78     plane[0] = fb->y_buffer + recon_yoffset;
    79     plane[1] = fb->u_buffer + recon_uvoffset;
    80     plane[2] = fb->v_buffer + recon_uvoffset;
    81 }
    84 static void get_predictor_pointers(const VP8_COMP *cpi,
    85                                        unsigned char  *plane[4][3],
    86                                        unsigned int    recon_yoffset,
    87                                        unsigned int    recon_uvoffset)
    88 {
    89     if (cpi->ref_frame_flags & VP8_LAST_FRAME)
    90         get_plane_pointers(&cpi->common.yv12_fb[cpi->common.lst_fb_idx],
    91                            plane[LAST_FRAME], recon_yoffset, recon_uvoffset);
    93     if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
    94         get_plane_pointers(&cpi->common.yv12_fb[cpi->common.gld_fb_idx],
    95                            plane[GOLDEN_FRAME], recon_yoffset, recon_uvoffset);
    97     if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
    98         get_plane_pointers(&cpi->common.yv12_fb[cpi->common.alt_fb_idx],
    99                            plane[ALTREF_FRAME], recon_yoffset, recon_uvoffset);
   100 }
   103 static void get_reference_search_order(const VP8_COMP *cpi,
   104                                            int             ref_frame_map[4])
   105 {
   106     int i=0;
   108     ref_frame_map[i++] = INTRA_FRAME;
   109     if (cpi->ref_frame_flags & VP8_LAST_FRAME)
   110         ref_frame_map[i++] = LAST_FRAME;
   111     if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
   112         ref_frame_map[i++] = GOLDEN_FRAME;
   113     if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
   114         ref_frame_map[i++] = ALTREF_FRAME;
   115     for(; i<4; i++)
   116         ref_frame_map[i] = -1;
   117 }
   120 extern void vp8_mv_pred
   121 (
   122     VP8_COMP *cpi,
   123     MACROBLOCKD *xd,
   124     const MODE_INFO *here,
   125     int_mv *mvp,
   126     int refframe,
   127     int *ref_frame_sign_bias,
   128     int *sr,
   129     int near_sadidx[]
   130 );
   131 void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[]);
   133 #endif

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