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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 | }; |