media/libvpx/vp9/encoder/vp9_segmentation.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 VP9_ENCODER_VP9_SEGMENTATION_H_
    13 #define VP9_ENCODER_VP9_SEGMENTATION_H_
    15 #include "vp9/common/vp9_blockd.h"
    16 #include "vp9/encoder/vp9_onyx_int.h"
    18 void vp9_enable_segmentation(VP9_PTR ptr);
    19 void vp9_disable_segmentation(VP9_PTR ptr);
    21 // Valid values for a segment are 0 to 3
    22 // Segmentation map is arrange as [Rows][Columns]
    23 void vp9_set_segmentation_map(VP9_PTR ptr, unsigned char *segmentation_map);
    25 // The values given for each segment can be either deltas (from the default
    26 // value chosen for the frame) or absolute values.
    27 //
    28 // Valid range for abs values is (0-127 for MB_LVL_ALT_Q), (0-63 for
    29 // SEGMENT_ALT_LF)
    30 // Valid range for delta values are (+/-127 for MB_LVL_ALT_Q), (+/-63 for
    31 // SEGMENT_ALT_LF)
    32 //
    33 // abs_delta = SEGMENT_DELTADATA (deltas) abs_delta = SEGMENT_ABSDATA (use
    34 // the absolute values given).
    35 void vp9_set_segment_data(VP9_PTR ptr, signed char *feature_data,
    36                           unsigned char abs_delta);
    38 void vp9_choose_segmap_coding_method(VP9_COMP *cpi);
    40 #endif  // VP9_ENCODER_VP9_SEGMENTATION_H_

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