1/* 2 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> 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/** 22 * @file 23 * MP test source, ported from MPlayer libmpcodecs/vf_test.c 24 */ 25 26#include "libavutil/avstring.h" 27#include "libavutil/opt.h" 28#include "libavutil/parseutils.h" 29#include "libavutil/pixdesc.h" 30#include "avfilter.h" 31#include "internal.h" 32#include "formats.h" 33#include "video.h" 34 35#define WIDTH 512 36#define HEIGHT 512 37 38enum test_type { 39 TEST_DC_LUMA, 40 TEST_DC_CHROMA, 41 TEST_FREQ_LUMA, 42 TEST_FREQ_CHROMA, 43 TEST_AMP_LUMA, 44 TEST_AMP_CHROMA, 45 TEST_CBP, 46 TEST_MV, 47 TEST_RING1, 48 TEST_RING2, 49 TEST_ALL, 50 TEST_NB 51}; 52 53typedef struct MPTestContext { 54 const AVClass *class; 55 AVRational frame_rate; 56 int64_t pts, max_pts, duration; 57 int hsub, vsub; 58 enum test_type test; 59} MPTestContext; 60 61#define OFFSET(x) offsetof(MPTestContext, x) 62#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM 63static const AVOption mptestsrc_options[]= { 64 { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS }, 65 { "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS }, 66 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS }, 67 { "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS }, 68 69 { "test", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" }, 70 { "t", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" }, 71 { "dc_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" }, 72 { "dc_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" }, 73 { "freq_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" }, 74 { "freq_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" }, 75 { "amp_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" }, 76 { "amp_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" }, 77 { "cbp", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_CBP}, INT_MIN, INT_MAX, FLAGS, "test" }, 78 { "mv", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_MV}, INT_MIN, INT_MAX, FLAGS, "test" }, 79 { "ring1", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING1}, INT_MIN, INT_MAX, FLAGS, "test" }, 80 { "ring2", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING2}, INT_MIN, INT_MAX, FLAGS, "test" }, 81 { "all", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_ALL}, INT_MIN, INT_MAX, FLAGS, "test" }, 82 { NULL } 83}; 84 85AVFILTER_DEFINE_CLASS(mptestsrc); 86 87static double c[64]; 88 89static void init_idct(void) 90{ 91 int i, j; 92 93 for (i = 0; i < 8; i++) { 94 double s = i == 0 ? sqrt(0.125) : 0.5; 95 96 for (j = 0; j < 8; j++) 97 c[i*8+j] = s*cos((M_PI/8.0)*i*(j+0.5)); 98 } 99} 100 101static void idct(uint8_t *dst, int dst_linesize, int src[64]) 102{ 103 int i, j, k; 104 double tmp[64]; 105 106 for (i = 0; i < 8; i++) { 107 for (j = 0; j < 8; j++) { 108 double sum = 0.0; 109 110 for (k = 0; k < 8; k++) 111 sum += c[k*8+j] * src[8*i+k]; 112 113 tmp[8*i+j] = sum; 114 } 115 } 116 117 for (j = 0; j < 8; j++) { 118 for (i = 0; i < 8; i++) { 119 double sum = 0.0; 120 121 for (k = 0; k < 8; k++) 122 sum += c[k*8+i]*tmp[8*k+j]; 123 124 dst[dst_linesize*i + j] = av_clip((int)floor(sum+0.5), 0, 255); 125 } 126 } 127} 128 129static void draw_dc(uint8_t *dst, int dst_linesize, int color, int w, int h) 130{ 131 int x, y; 132 133 for (y = 0; y < h; y++) 134 for (x = 0; x < w; x++) 135 dst[x + y*dst_linesize] = color; 136} 137 138static void draw_basis(uint8_t *dst, int dst_linesize, int amp, int freq, int dc) 139{ 140 int src[64]; 141 142 memset(src, 0, 64*sizeof(int)); 143 src[0] = dc; 144 if (amp) 145 src[freq] = amp; 146 idct(dst, dst_linesize, src); 147} 148 149static void draw_cbp(uint8_t *dst[3], int dst_linesize[3], int cbp, int amp, int dc) 150{ 151 if (cbp&1) draw_basis(dst[0] , dst_linesize[0], amp, 1, dc); 152 if (cbp&2) draw_basis(dst[0]+8 , dst_linesize[0], amp, 1, dc); 153 if (cbp&4) draw_basis(dst[0]+ 8*dst_linesize[0], dst_linesize[0], amp, 1, dc); 154 if (cbp&8) draw_basis(dst[0]+8+8*dst_linesize[0], dst_linesize[0], amp, 1, dc); 155 if (cbp&16) draw_basis(dst[1] , dst_linesize[1], amp, 1, dc); 156 if (cbp&32) draw_basis(dst[2] , dst_linesize[2], amp, 1, dc); 157} 158 159static void dc_test(uint8_t *dst, int dst_linesize, int w, int h, int off) 160{ 161 const int step = FFMAX(256/(w*h/256), 1); 162 int x, y, color = off; 163 164 for (y = 0; y < h; y += 16) { 165 for (x = 0; x < w; x += 16) { 166 draw_dc(dst + x + y*dst_linesize, dst_linesize, color, 8, 8); 167 color += step; 168 } 169 } 170} 171 172static void freq_test(uint8_t *dst, int dst_linesize, int off) 173{ 174 int x, y, freq = 0; 175 176 for (y = 0; y < 8*16; y += 16) { 177 for (x = 0; x < 8*16; x += 16) { 178 draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*(96+off), freq, 128*8); 179 freq++; 180 } 181 } 182} 183 184static void amp_test(uint8_t *dst, int dst_linesize, int off) 185{ 186 int x, y, amp = off; 187 188 for (y = 0; y < 16*16; y += 16) { 189 for (x = 0; x < 16*16; x += 16) { 190 draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*amp, 1, 128*8); 191 amp++; 192 } 193 } 194} 195 196static void cbp_test(uint8_t *dst[3], int dst_linesize[3], int off) 197{ 198 int x, y, cbp = 0; 199 200 for (y = 0; y < 16*8; y += 16) { 201 for (x = 0; x < 16*8; x += 16) { 202 uint8_t *dst1[3]; 203 dst1[0] = dst[0] + x*2 + y*2*dst_linesize[0]; 204 dst1[1] = dst[1] + x + y* dst_linesize[1]; 205 dst1[2] = dst[2] + x + y* dst_linesize[2]; 206 207 draw_cbp(dst1, dst_linesize, cbp, (64+off)*4, 128*8); 208 cbp++; 209 } 210 } 211} 212 213static void mv_test(uint8_t *dst, int dst_linesize, int off) 214{ 215 int x, y; 216 217 for (y = 0; y < 16*16; y++) { 218 if (y&16) 219 continue; 220 for (x = 0; x < 16*16; x++) 221 dst[x + y*dst_linesize] = x + off*8/(y/32+1); 222 } 223} 224 225static void ring1_test(uint8_t *dst, int dst_linesize, int off) 226{ 227 int x, y, color = 0; 228 229 for (y = off; y < 16*16; y += 16) { 230 for (x = off; x < 16*16; x += 16) { 231 draw_dc(dst + x + y*dst_linesize, dst_linesize, ((x+y)&16) ? color : -color, 16, 16); 232 color++; 233 } 234 } 235} 236 237static void ring2_test(uint8_t *dst, int dst_linesize, int off) 238{ 239 int x, y; 240 241 for (y = 0; y < 16*16; y++) { 242 for (x = 0; x < 16*16; x++) { 243 double d = sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16)); 244 double r = d/20 - (int)(d/20); 245 if (r < off/30.0) { 246 dst[x + y*dst_linesize] = 255; 247 dst[x + y*dst_linesize+256] = 0; 248 } else { 249 dst[x + y*dst_linesize] = x; 250 dst[x + y*dst_linesize+256] = x; 251 } 252 } 253 } 254} 255 256static av_cold int init(AVFilterContext *ctx) 257{ 258 MPTestContext *test = ctx->priv; 259 260 test->max_pts = test->duration >= 0 ? 261 av_rescale_q(test->duration, AV_TIME_BASE_Q, av_inv_q(test->frame_rate)) : -1; 262 test->pts = 0; 263 264 av_log(ctx, AV_LOG_VERBOSE, "rate:%d/%d duration:%f\n", 265 test->frame_rate.num, test->frame_rate.den, 266 test->duration < 0 ? -1 : test->max_pts * av_q2d(av_inv_q(test->frame_rate))); 267 init_idct(); 268 269 return 0; 270} 271 272static int config_props(AVFilterLink *outlink) 273{ 274 AVFilterContext *ctx = outlink->src; 275 MPTestContext *test = ctx->priv; 276 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(outlink->format); 277 278 test->hsub = pix_desc->log2_chroma_w; 279 test->vsub = pix_desc->log2_chroma_h; 280 281 outlink->w = WIDTH; 282 outlink->h = HEIGHT; 283 outlink->time_base = av_inv_q(test->frame_rate); 284 285 return 0; 286} 287 288static int query_formats(AVFilterContext *ctx) 289{ 290 static const enum AVPixelFormat pix_fmts[] = { 291 AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE 292 }; 293 294 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); 295 return 0; 296} 297 298static int request_frame(AVFilterLink *outlink) 299{ 300 MPTestContext *test = outlink->src->priv; 301 AVFrame *picref; 302 int w = WIDTH, h = HEIGHT, 303 cw = FF_CEIL_RSHIFT(w, test->hsub), ch = FF_CEIL_RSHIFT(h, test->vsub); 304 unsigned int frame = outlink->frame_count; 305 enum test_type tt = test->test; 306 int i; 307 308 if (test->max_pts >= 0 && test->pts > test->max_pts) 309 return AVERROR_EOF; 310 picref = ff_get_video_buffer(outlink, w, h); 311 if (!picref) 312 return AVERROR(ENOMEM); 313 picref->pts = test->pts++; 314 315 // clean image 316 for (i = 0; i < h; i++) 317 memset(picref->data[0] + i*picref->linesize[0], 0, w); 318 for (i = 0; i < ch; i++) { 319 memset(picref->data[1] + i*picref->linesize[1], 128, cw); 320 memset(picref->data[2] + i*picref->linesize[2], 128, cw); 321 } 322 323 if (tt == TEST_ALL && frame%30) /* draw a black frame at the beginning of each test */ 324 tt = (frame/30)%(TEST_NB-1); 325 326 switch (tt) { 327 case TEST_DC_LUMA: dc_test(picref->data[0], picref->linesize[0], 256, 256, frame%30); break; 328 case TEST_DC_CHROMA: dc_test(picref->data[1], picref->linesize[1], 256, 256, frame%30); break; 329 case TEST_FREQ_LUMA: freq_test(picref->data[0], picref->linesize[0], frame%30); break; 330 case TEST_FREQ_CHROMA: freq_test(picref->data[1], picref->linesize[1], frame%30); break; 331 case TEST_AMP_LUMA: amp_test(picref->data[0], picref->linesize[0], frame%30); break; 332 case TEST_AMP_CHROMA: amp_test(picref->data[1], picref->linesize[1], frame%30); break; 333 case TEST_CBP: cbp_test(picref->data , picref->linesize , frame%30); break; 334 case TEST_MV: mv_test(picref->data[0], picref->linesize[0], frame%30); break; 335 case TEST_RING1: ring1_test(picref->data[0], picref->linesize[0], frame%30); break; 336 case TEST_RING2: ring2_test(picref->data[0], picref->linesize[0], frame%30); break; 337 } 338 339 return ff_filter_frame(outlink, picref); 340} 341 342static const AVFilterPad mptestsrc_outputs[] = { 343 { 344 .name = "default", 345 .type = AVMEDIA_TYPE_VIDEO, 346 .request_frame = request_frame, 347 .config_props = config_props, 348 }, 349 { NULL } 350}; 351 352AVFilter ff_vsrc_mptestsrc = { 353 .name = "mptestsrc", 354 .description = NULL_IF_CONFIG_SMALL("Generate various test pattern."), 355 .priv_size = sizeof(MPTestContext), 356 .priv_class = &mptestsrc_class, 357 .init = init, 358 .query_formats = query_formats, 359 .inputs = NULL, 360 .outputs = mptestsrc_outputs, 361}; 362