git.sesse.net Git - ffmpeg/blob - tests/checkasm/h264pred.c

   1 /*
   2  * Copyright (c) 2015 Henrik Gramner
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <string.h>
  22 #include "checkasm.h"
  23 #include "libavcodec/avcodec.h"
  24 #include "libavcodec/h264pred.h"
  25 #include "libavutil/common.h"
  26 #include "libavutil/internal.h"
  27 #include "libavutil/intreadwrite.h"
  28
  29 static const int codec_ids[4] = { AV_CODEC_ID_H264, AV_CODEC_ID_VP8, AV_CODEC_ID_RV40, AV_CODEC_ID_SVQ3 };
  30
  31 static const char * const pred4x4_modes[4][15] = {
  32     { /* H.264 */
  33         [VERT_PRED           ] = "vertical",
  34         [HOR_PRED            ] = "horizontal",
  35         [DC_PRED             ] = "dc",
  36         [DIAG_DOWN_LEFT_PRED ] = "down_left",
  37         [DIAG_DOWN_RIGHT_PRED] = "down_right",
  38         [VERT_RIGHT_PRED     ] = "vertical_right",
  39         [HOR_DOWN_PRED       ] = "horizontal_right",
  40         [VERT_LEFT_PRED      ] = "vertical_left",
  41         [HOR_UP_PRED         ] = "horizontal_up",
  42         [LEFT_DC_PRED        ] = "left_dc",
  43         [TOP_DC_PRED         ] = "top_dc",
  44         [DC_128_PRED         ] = "dc_128",
  45     },
  46     { /* VP8 */
  47         [VERT_PRED     ] = "vertical_vp8",
  48         [HOR_PRED      ] = "horizontal_vp8",
  49         [VERT_LEFT_PRED] = "vertical_left_vp8",
  50         [TM_VP8_PRED   ] = "tm_vp8",
  51         [DC_127_PRED   ] = "dc_127_vp8",
  52         [DC_129_PRED   ] = "dc_129_vp8",
  53     },
  54     { /* RV40 */
  55         [DIAG_DOWN_LEFT_PRED            ] = "down_left_rv40",
  56         [VERT_LEFT_PRED                 ] = "vertical_left_rv40",
  57         [HOR_UP_PRED                    ] = "horizontal_up_rv40",
  58         [DIAG_DOWN_LEFT_PRED_RV40_NODOWN] = "down_left_nodown_rv40",
  59         [HOR_UP_PRED_RV40_NODOWN        ] = "horizontal_up_nodown_rv40",
  60         [VERT_LEFT_PRED_RV40_NODOWN     ] = "vertical_left_nodown_rv40",
  61     },
  62     { /* SVQ3 */
  63         [DIAG_DOWN_LEFT_PRED] = "down_left_svq3",
  64     },
  65 };
  66
  67 static const char * const pred8x8_modes[4][11] = {
  68     { /* H.264 */
  69         [DC_PRED8x8              ] = "dc",
  70         [HOR_PRED8x8             ] = "horizontal",
  71         [VERT_PRED8x8            ] = "vertical",
  72         [PLANE_PRED8x8           ] = "plane",
  73         [LEFT_DC_PRED8x8         ] = "left_dc",
  74         [TOP_DC_PRED8x8          ] = "top_dc",
  75         [DC_128_PRED8x8          ] = "dc_128",
  76         [ALZHEIMER_DC_L0T_PRED8x8] = "mad_cow_dc_l0t",
  77         [ALZHEIMER_DC_0LT_PRED8x8] = "mad_cow_dc_0lt",
  78         [ALZHEIMER_DC_L00_PRED8x8] = "mad_cow_dc_l00",
  79         [ALZHEIMER_DC_0L0_PRED8x8] = "mad_cow_dc_0l0",
  80     },
  81     { /* VP8 */
  82         [PLANE_PRED8x8 ] = "tm_vp8",
  83         [DC_127_PRED8x8] = "dc_127_vp8",
  84         [DC_129_PRED8x8] = "dc_129_vp8",
  85     },
  86     { /* RV40 */
  87         [DC_PRED8x8     ] = "dc_rv40",
  88         [LEFT_DC_PRED8x8] = "left_dc_rv40",
  89         [TOP_DC_PRED8x8 ] = "top_dc_rv40",
  90     },
  91     /* nothing for SVQ3 */
  92 };
  93
  94 static const char * const pred16x16_modes[4][9] = {
  95     { /* H.264 */
  96         [DC_PRED8x8     ] = "dc",
  97         [HOR_PRED8x8    ] = "horizontal",
  98         [VERT_PRED8x8   ] = "vertical",
  99         [PLANE_PRED8x8  ] = "plane",
 100         [LEFT_DC_PRED8x8] = "left_dc",
 101         [TOP_DC_PRED8x8 ] = "top_dc",
 102         [DC_128_PRED8x8 ] = "dc_128",
 103     },
 104     { /* VP8 */
 105         [PLANE_PRED8x8 ] = "tm_vp8",
 106         [DC_127_PRED8x8] = "dc_127_vp8",
 107         [DC_129_PRED8x8] = "dc_129_vp8",
 108     },
 109     { /* RV40 */
 110         [PLANE_PRED8x8] = "plane_rv40",
 111     },
 112     { /* SVQ3 */
 113         [PLANE_PRED8x8] = "plane_svq3",
 114     },
 115 };
 116
 117 static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
 118
 119 #define SIZEOF_PIXEL ((bit_depth + 7) / 8)
 120 #define BUF_SIZE (3 * 16 * 17)
 121
 122 #define check_pred_func(func, name, mode_name)                                    \
 123     (mode_name && ((codec_ids[codec] == AV_CODEC_ID_H264) ?                       \
 124                    check_func(func, "pred%s_%s_%d", name, mode_name, bit_depth) : \
 125                    check_func(func, "pred%s_%s", name, mode_name)))
 126
 127 #define randomize_buffers()                        \
 128     do {                                           \
 129         uint32_t mask = pixel_mask[bit_depth - 8]; \
 130         int i;                                     \
 131         for (i = 0; i < BUF_SIZE; i += 4) {        \
 132             uint32_t r = rnd() & mask;             \
 133             AV_WN32A(buf0 + i, r);                 \
 134             AV_WN32A(buf1 + i, r);                 \
 135         }                                          \
 136     } while (0)
 137
 138 #define src0 (buf0 + 4 * 16) /* Offset to allow room for top and left */
 139 #define src1 (buf1 + 4 * 16)
 140
 141 static void check_pred4x4(H264PredContext *h, uint8_t *buf0, uint8_t *buf1,
 142                           int codec, int chroma_format, int bit_depth)
 143 {
 144     if (chroma_format == 1) {
 145         uint8_t *topright = buf0 + 2*16;
 146         int pred_mode;
 147         declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *src, const uint8_t *topright, ptrdiff_t stride);
 148
 149         for (pred_mode = 0; pred_mode < 15; pred_mode++) {
 150             if (check_pred_func(h->pred4x4[pred_mode], "4x4", pred4x4_modes[codec][pred_mode])) {
 151                 randomize_buffers();
 152                 call_ref(src0, topright, 12*SIZEOF_PIXEL);
 153                 call_new(src1, topright, 12*SIZEOF_PIXEL);
 154                 if (memcmp(buf0, buf1, BUF_SIZE))
 155                     fail();
 156                 bench_new(src1, topright, 12*SIZEOF_PIXEL);
 157             }
 158         }
 159     }
 160 }
 161
 162 static void check_pred8x8(H264PredContext *h, uint8_t *buf0, uint8_t *buf1,
 163                           int codec, int chroma_format, int bit_depth)
 164 {
 165     int pred_mode;
 166     declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *src, ptrdiff_t stride);
 167
 168     for (pred_mode = 0; pred_mode < 11; pred_mode++) {
 169         if (check_pred_func(h->pred8x8[pred_mode], (chroma_format == 2) ? "8x16" : "8x8",
 170                             pred8x8_modes[codec][pred_mode])) {
 171             randomize_buffers();
 172             call_ref(src0, 24*SIZEOF_PIXEL);
 173             call_new(src1, 24*SIZEOF_PIXEL);
 174             if (memcmp(buf0, buf1, BUF_SIZE))
 175                 fail();
 176             bench_new(src1, 24*SIZEOF_PIXEL);
 177         }
 178     }
 179 }
 180
 181 static void check_pred16x16(H264PredContext *h, uint8_t *buf0, uint8_t *buf1,
 182                             int codec, int chroma_format, int bit_depth)
 183 {
 184     if (chroma_format == 1) {
 185         int pred_mode;
 186         declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *src, ptrdiff_t stride);
 187
 188         for (pred_mode = 0; pred_mode < 9; pred_mode++) {
 189             if (check_pred_func(h->pred16x16[pred_mode], "16x16", pred16x16_modes[codec][pred_mode])) {
 190                 randomize_buffers();
 191                 call_ref(src0, 48);
 192                 call_new(src1, 48);
 193                 if (memcmp(buf0, buf1, BUF_SIZE))
 194                     fail();
 195                 bench_new(src1, 48);
 196             }
 197         }
 198     }
 199 }
 200
 201 static void check_pred8x8l(H264PredContext *h, uint8_t *buf0, uint8_t *buf1,
 202                            int codec, int chroma_format, int bit_depth)
 203 {
 204     if (chroma_format == 1 && codec_ids[codec] == AV_CODEC_ID_H264) {
 205         int pred_mode;
 206         declare_func_emms(AV_CPU_FLAG_MMXEXT, void, uint8_t *src, int topleft, int topright, ptrdiff_t stride);
 207
 208         for (pred_mode = 0; pred_mode < 12; pred_mode++) {
 209             if (check_pred_func(h->pred8x8l[pred_mode], "8x8l", pred4x4_modes[codec][pred_mode])) {
 210                 int neighbors;
 211                 for (neighbors = 0; neighbors <= 0xc000; neighbors += 0x4000) {
 212                     int has_topleft  = neighbors & 0x8000;
 213                     int has_topright = neighbors & 0x4000;
 214
 215                     if ((pred_mode == DIAG_DOWN_RIGHT_PRED || pred_mode == VERT_RIGHT_PRED) && !has_topleft)
 216                         continue; /* Those aren't allowed according to the spec */
 217
 218                     randomize_buffers();
 219                     call_ref(src0, has_topleft, has_topright, 24*SIZEOF_PIXEL);
 220                     call_new(src1, has_topleft, has_topright, 24*SIZEOF_PIXEL);
 221                     if (memcmp(buf0, buf1, BUF_SIZE))
 222                         fail();
 223                     bench_new(src1, has_topleft, has_topright, 24*SIZEOF_PIXEL);
 224                 }
 225             }
 226         }
 227     }
 228 }
 229
 230 /* TODO: Add tests for H.264 lossless H/V prediction */
 231
 232 void checkasm_check_h264pred(void)
 233 {
 234     static const struct {
 235         void (*func)(H264PredContext*, uint8_t*, uint8_t*, int, int, int);
 236         const char *name;
 237     } tests[] = {
 238         { check_pred4x4,   "pred4x4"   },
 239         { check_pred8x8,   "pred8x8"   },
 240         { check_pred16x16, "pred16x16" },
 241         { check_pred8x8l,  "pred8x8l"  },
 242     };
 243
 244     LOCAL_ALIGNED_16(uint8_t, buf0, [BUF_SIZE]);
 245     LOCAL_ALIGNED_16(uint8_t, buf1, [BUF_SIZE]);
 246     H264PredContext h;
 247     int test, codec, chroma_format, bit_depth;
 248
 249     for (test = 0; test < FF_ARRAY_ELEMS(tests); test++) {
 250         for (codec = 0; codec < 4; codec++) {
 251             int codec_id = codec_ids[codec];
 252             for (bit_depth = 8; bit_depth <= (codec_id == AV_CODEC_ID_H264 ? 10 : 8); bit_depth++)
 253                 for (chroma_format = 1; chroma_format <= (codec_id == AV_CODEC_ID_H264 ? 2 : 1); chroma_format++) {
 254                     ff_h264_pred_init(&h, codec_id, bit_depth, chroma_format);
 255                     tests[test].func(&h, buf0, buf1, codec, chroma_format, bit_depth);
 256                 }
 257         }
 258         report("%s", tests[test].name);
 259     }
 260 }