test/set_roi.cc

   1 /*
   2  *  Copyright (c) 2012 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  */
  10
  11
  12 #include <math.h>
  13 #include <stddef.h>
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <sys/types.h>
  18
  19 #include "third_party/googletest/src/include/gtest/gtest.h"
  20 #include "vpx/vpx_integer.h"
  21 #include "vpx_mem/vpx_mem.h"
  22 extern "C" {
  23 #include "vp8/encoder/onyx_int.h"
  24 }
  25
  26 namespace {
  27
  28 TEST(Vp8RoiMapTest, ParameterCheck) {
  29   int delta_q[MAX_MB_SEGMENTS] = { -2, -25, 0, 31 };
  30   int delta_lf[MAX_MB_SEGMENTS] = { -2, -25, 0, 31 };
  31   unsigned int threshold[MAX_MB_SEGMENTS] = { 0, 100, 200, 300 };
  32
  33   const int internalq_trans[] = {
  34     0,   1,  2,  3,  4,  5,  7,  8,
  35     9,  10, 12, 13, 15, 17, 18, 19,
  36     20,  21, 23, 24, 25, 26, 27, 28,
  37     29,  30, 31, 33, 35, 37, 39, 41,
  38     43,  45, 47, 49, 51, 53, 55, 57,
  39     59,  61, 64, 67, 70, 73, 76, 79,
  40     82,  85, 88, 91, 94, 97, 100, 103,
  41     106, 109, 112, 115, 118, 121, 124, 127,
  42   };
  43
  44   // Initialize elements of cpi with valid defaults.
  45   VP8_COMP cpi;
  46   cpi.mb.e_mbd.mb_segement_abs_delta = SEGMENT_DELTADATA;
  47   cpi.cyclic_refresh_mode_enabled = 0;
  48   cpi.mb.e_mbd.segmentation_enabled = 0;
  49   cpi.mb.e_mbd.update_mb_segmentation_map = 0;
  50   cpi.mb.e_mbd.update_mb_segmentation_data = 0;
  51   cpi.common.mb_rows = 240 >> 4;
  52   cpi.common.mb_cols = 320 >> 4;
  53   const int mbs = (cpi.common.mb_rows * cpi.common.mb_cols);
  54   vpx_memset(cpi.segment_feature_data, 0, sizeof(cpi.segment_feature_data));
  55
  56   // Segment map
  57   cpi.segmentation_map = reinterpret_cast<unsigned char *>(vpx_calloc(mbs, 1));
  58
  59   // Allocate memory for the source memory map.
  60   unsigned char *roi_map =
  61     reinterpret_cast<unsigned char *>(vpx_calloc(mbs, 1));
  62   vpx_memset(&roi_map[mbs >> 2], 1, (mbs >> 2));
  63   vpx_memset(&roi_map[mbs >> 1], 2, (mbs >> 2));
  64   vpx_memset(&roi_map[mbs -(mbs >> 2)], 3, (mbs >> 2));
  65
  66   // Do a test call with valid parameters.
  67   int roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
  68                                   cpi.common.mb_cols, delta_q, delta_lf,
  69                                   threshold);
  70   EXPECT_EQ(0, roi_retval)
  71         << "vp8_set_roimap roi failed with default test parameters";
  72
  73   // Check that the values in the cpi structure get set as expected.
  74   if (roi_retval == 0) {
  75     // Check that the segment map got set.
  76     const int mapcompare = memcmp(roi_map, cpi.segmentation_map, mbs);
  77     EXPECT_EQ(0, mapcompare) << "segment map error";
  78
  79     // Check the q deltas (note the need to translate into
  80     // the interanl range of 0-127.
  81     for (int i = 0; i < MAX_MB_SEGMENTS; ++i) {
  82       const int transq = internalq_trans[abs(delta_q[i])];
  83       if (abs(cpi.segment_feature_data[MB_LVL_ALT_Q][i]) != transq) {
  84           EXPECT_EQ(transq, cpi.segment_feature_data[MB_LVL_ALT_Q][i])
  85                     << "segment delta_q  error";
  86           break;
  87       }
  88     }
  89
  90     // Check the loop filter deltas
  91     for (int i = 0; i < MAX_MB_SEGMENTS; ++i) {
  92       if (cpi.segment_feature_data[MB_LVL_ALT_LF][i] != delta_lf[i]) {
  93         EXPECT_EQ(delta_lf[i], cpi.segment_feature_data[MB_LVL_ALT_LF][i])
  94                   << "segment delta_lf error";
  95         break;
  96       }
  97     }
  98
  99     // Check the breakout thresholds
 100     for (int i = 0; i < MAX_MB_SEGMENTS; ++i) {
 101       unsigned int breakout =
 102         static_cast<unsigned int>(cpi.segment_encode_breakout[i]);
 103
 104       if (threshold[i] != breakout) {
 105         EXPECT_EQ(threshold[i], breakout)
 106                   << "breakout threshold error";
 107         break;
 108       }
 109     }
 110
 111     // Segmentation, and segmentation update flages should be set.
 112     EXPECT_EQ(1, cpi.mb.e_mbd.segmentation_enabled)
 113               << "segmentation_enabled error";
 114     EXPECT_EQ(1, cpi.mb.e_mbd.update_mb_segmentation_map)
 115               << "update_mb_segmentation_map error";
 116     EXPECT_EQ(1, cpi.mb.e_mbd.update_mb_segmentation_data)
 117               << "update_mb_segmentation_data error";
 118
 119
 120     // Try a range of delta q and lf parameters (some legal, some not)
 121     for (int i = 0; i < 1000; ++i) {
 122       int rand_deltas[4];
 123       int deltas_valid;
 124       rand_deltas[0] = (rand() % 160) - 80;
 125       rand_deltas[1] = (rand() % 160) - 80;
 126       rand_deltas[2] = (rand() % 160) - 80;
 127       rand_deltas[3] = (rand() % 160) - 80;
 128
 129       deltas_valid = ((abs(rand_deltas[0]) <= 63) &&
 130                       (abs(rand_deltas[1]) <= 63) &&
 131                       (abs(rand_deltas[2]) <= 63) &&
 132                       (abs(rand_deltas[3]) <= 63)) ? 0 : -1;
 133
 134       // Test with random delta q values.
 135       roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 136                                   cpi.common.mb_cols, rand_deltas,
 137                                   delta_lf, threshold);
 138       EXPECT_EQ(deltas_valid, roi_retval) << "dq range check error";
 139
 140       // One delta_q error shown at a time
 141       if (deltas_valid != roi_retval)
 142         break;
 143
 144       // Test with random loop filter values.
 145       roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 146                                   cpi.common.mb_cols, delta_q,
 147                                   rand_deltas, threshold);
 148       EXPECT_EQ(deltas_valid, roi_retval) << "dlf range check error";
 149
 150       // One delta loop filter error shown at a time
 151       if (deltas_valid != roi_retval)
 152         break;
 153     }
 154
 155     // Test that we report and error if cyclic refresh is enabled.
 156     cpi.cyclic_refresh_mode_enabled = 1;
 157     roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 158                                 cpi.common.mb_cols, delta_q,
 159                                 delta_lf, threshold);
 160     EXPECT_EQ(-1, roi_retval) << "cyclic refresh check error";
 161     cpi.cyclic_refresh_mode_enabled = 0;
 162
 163     // Test invalid number of rows or colums.
 164     roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows + 1,
 165                                 cpi.common.mb_cols, delta_q,
 166                                 delta_lf, threshold);
 167     EXPECT_EQ(-1, roi_retval) << "MB rows bounds check error";
 168
 169     roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 170                                 cpi.common.mb_cols - 1, delta_q,
 171                                 delta_lf, threshold);
 172     EXPECT_EQ(-1, roi_retval) << "MB cols bounds check error";
 173   }
 174
 175   // Free allocated memory
 176   if (cpi.segmentation_map)
 177     vpx_free(cpi.segmentation_map);
 178   if (roi_map)
 179     vpx_free(roi_map);
 180 };
 181
 182 }  // namespace