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 "test/acm_random.h"
  21 #include "vp8/encoder/onyx_int.h"
  22 #include "vpx/vpx_integer.h"
  23 #include "vpx_mem/vpx_mem.h"
  24
  25 using libvpx_test::ACMRandom;
  26
  27 namespace {
  28
  29 TEST(VP8RoiMapTest, ParameterCheck) {
  30   ACMRandom rnd(ACMRandom::DeterministicSeed());
  31   int delta_q[MAX_MB_SEGMENTS] = { -2, -25, 0, 31 };
  32   int delta_lf[MAX_MB_SEGMENTS] = { -2, -25, 0, 31 };
  33   unsigned int threshold[MAX_MB_SEGMENTS] = { 0, 100, 200, 300 };
  34
  35   const int internalq_trans[] = {
  36     0,   1,  2,  3,  4,  5,  7,  8,
  37     9,  10, 12, 13, 15, 17, 18, 19,
  38     20,  21, 23, 24, 25, 26, 27, 28,
  39     29,  30, 31, 33, 35, 37, 39, 41,
  40     43,  45, 47, 49, 51, 53, 55, 57,
  41     59,  61, 64, 67, 70, 73, 76, 79,
  42     82,  85, 88, 91, 94, 97, 100, 103,
  43     106, 109, 112, 115, 118, 121, 124, 127,
  44   };
  45
  46   // Initialize elements of cpi with valid defaults.
  47   VP8_COMP cpi;
  48   cpi.mb.e_mbd.mb_segement_abs_delta = SEGMENT_DELTADATA;
  49   cpi.cyclic_refresh_mode_enabled = 0;
  50   cpi.mb.e_mbd.segmentation_enabled = 0;
  51   cpi.mb.e_mbd.update_mb_segmentation_map = 0;
  52   cpi.mb.e_mbd.update_mb_segmentation_data = 0;
  53   cpi.common.mb_rows = 240 >> 4;
  54   cpi.common.mb_cols = 320 >> 4;
  55   const int mbs = (cpi.common.mb_rows * cpi.common.mb_cols);
  56   memset(cpi.segment_feature_data, 0, sizeof(cpi.segment_feature_data));
  57
  58   // Segment map
  59   cpi.segmentation_map = reinterpret_cast<unsigned char *>(vpx_calloc(mbs, 1));
  60
  61   // Allocate memory for the source memory map.
  62   unsigned char *roi_map =
  63     reinterpret_cast<unsigned char *>(vpx_calloc(mbs, 1));
  64   memset(&roi_map[mbs >> 2], 1, (mbs >> 2));
  65   memset(&roi_map[mbs >> 1], 2, (mbs >> 2));
  66   memset(&roi_map[mbs -(mbs >> 2)], 3, (mbs >> 2));
  67
  68   // Do a test call with valid parameters.
  69   int roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
  70                                   cpi.common.mb_cols, delta_q, delta_lf,
  71                                   threshold);
  72   EXPECT_EQ(0, roi_retval)
  73         << "vp8_set_roimap roi failed with default test parameters";
  74
  75   // Check that the values in the cpi structure get set as expected.
  76   if (roi_retval == 0) {
  77     // Check that the segment map got set.
  78     const int mapcompare = memcmp(roi_map, cpi.segmentation_map, mbs);
  79     EXPECT_EQ(0, mapcompare) << "segment map error";
  80
  81     // Check the q deltas (note the need to translate into
  82     // the interanl range of 0-127.
  83     for (int i = 0; i < MAX_MB_SEGMENTS; ++i) {
  84       const int transq = internalq_trans[abs(delta_q[i])];
  85       if (abs(cpi.segment_feature_data[MB_LVL_ALT_Q][i]) != transq) {
  86           EXPECT_EQ(transq, cpi.segment_feature_data[MB_LVL_ALT_Q][i])
  87                     << "segment delta_q  error";
  88           break;
  89       }
  90     }
  91
  92     // Check the loop filter deltas
  93     for (int i = 0; i < MAX_MB_SEGMENTS; ++i) {
  94       if (cpi.segment_feature_data[MB_LVL_ALT_LF][i] != delta_lf[i]) {
  95         EXPECT_EQ(delta_lf[i], cpi.segment_feature_data[MB_LVL_ALT_LF][i])
  96                   << "segment delta_lf error";
  97         break;
  98       }
  99     }
 100
 101     // Check the breakout thresholds
 102     for (int i = 0; i < MAX_MB_SEGMENTS; ++i) {
 103       unsigned int breakout =
 104         static_cast<unsigned int>(cpi.segment_encode_breakout[i]);
 105
 106       if (threshold[i] != breakout) {
 107         EXPECT_EQ(threshold[i], breakout)
 108                   << "breakout threshold error";
 109         break;
 110       }
 111     }
 112
 113     // Segmentation, and segmentation update flages should be set.
 114     EXPECT_EQ(1, cpi.mb.e_mbd.segmentation_enabled)
 115               << "segmentation_enabled error";
 116     EXPECT_EQ(1, cpi.mb.e_mbd.update_mb_segmentation_map)
 117               << "update_mb_segmentation_map error";
 118     EXPECT_EQ(1, cpi.mb.e_mbd.update_mb_segmentation_data)
 119               << "update_mb_segmentation_data error";
 120
 121
 122     // Try a range of delta q and lf parameters (some legal, some not)
 123     for (int i = 0; i < 1000; ++i) {
 124       int rand_deltas[4];
 125       int deltas_valid;
 126       rand_deltas[0] = rnd(160) - 80;
 127       rand_deltas[1] = rnd(160) - 80;
 128       rand_deltas[2] = rnd(160) - 80;
 129       rand_deltas[3] = rnd(160) - 80;
 130
 131       deltas_valid = ((abs(rand_deltas[0]) <= 63) &&
 132                       (abs(rand_deltas[1]) <= 63) &&
 133                       (abs(rand_deltas[2]) <= 63) &&
 134                       (abs(rand_deltas[3]) <= 63)) ? 0 : -1;
 135
 136       // Test with random delta q values.
 137       roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 138                                   cpi.common.mb_cols, rand_deltas,
 139                                   delta_lf, threshold);
 140       EXPECT_EQ(deltas_valid, roi_retval) << "dq range check error";
 141
 142       // One delta_q error shown at a time
 143       if (deltas_valid != roi_retval)
 144         break;
 145
 146       // Test with random loop filter values.
 147       roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 148                                   cpi.common.mb_cols, delta_q,
 149                                   rand_deltas, threshold);
 150       EXPECT_EQ(deltas_valid, roi_retval) << "dlf range check error";
 151
 152       // One delta loop filter error shown at a time
 153       if (deltas_valid != roi_retval)
 154         break;
 155     }
 156
 157     // Test that we report and error if cyclic refresh is enabled.
 158     cpi.cyclic_refresh_mode_enabled = 1;
 159     roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 160                                 cpi.common.mb_cols, delta_q,
 161                                 delta_lf, threshold);
 162     EXPECT_EQ(-1, roi_retval) << "cyclic refresh check error";
 163     cpi.cyclic_refresh_mode_enabled = 0;
 164
 165     // Test invalid number of rows or colums.
 166     roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows + 1,
 167                                 cpi.common.mb_cols, delta_q,
 168                                 delta_lf, threshold);
 169     EXPECT_EQ(-1, roi_retval) << "MB rows bounds check error";
 170
 171     roi_retval = vp8_set_roimap(&cpi, roi_map, cpi.common.mb_rows,
 172                                 cpi.common.mb_cols - 1, delta_q,
 173                                 delta_lf, threshold);
 174     EXPECT_EQ(-1, roi_retval) << "MB cols bounds check error";
 175   }
 176
 177   // Free allocated memory
 178   if (cpi.segmentation_map)
 179     vpx_free(cpi.segmentation_map);
 180   if (roi_map)
 181     vpx_free(roi_map);
 182 };
 183
 184 }  // namespace