| 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 | |
| 38 | enum 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 | |
| 53 | typedef 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 |
| 63 | static 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 | |
| 85 | AVFILTER_DEFINE_CLASS(mptestsrc); |
| 86 | |
| 87 | static double c[64]; |
| 88 | |
| 89 | static 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 | |
| 101 | static 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 | |
| 129 | static 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 | |
| 138 | static 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 | |
| 149 | static 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 | |
| 159 | static 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 | |
| 172 | static 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 | |
| 184 | static 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 | |
| 196 | static 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 | |
| 213 | static 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 | |
| 225 | static 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 | |
| 237 | static 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 | |
| 256 | static 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 | |
| 272 | static 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 | |
| 288 | static 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 | |
| 298 | static 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 | |
| 342 | static 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 | |
| 352 | AVFilter 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 | }; |