2 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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.
23 * MP test source, ported from MPlayer libmpcodecs/vf_test.c
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
50 typedef struct MPTestContext {
52 AVRational frame_rate;
53 int64_t pts, max_pts, duration;
56 int test; ///< test_type
59 #define OFFSET(x) offsetof(MPTestContext, x)
60 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
61 static const AVOption mptestsrc_options[]= {
62 { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, FLAGS },
63 { "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, FLAGS },
64 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },
65 { "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },
67 { "test", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" },
68 { "t", "set test to perform", OFFSET(test), AV_OPT_TYPE_INT, {.i64=TEST_ALL}, 0, INT_MAX, FLAGS, "test" },
69 { "dc_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
70 { "dc_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_DC_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
71 { "freq_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
72 { "freq_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_FREQ_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
73 { "amp_luma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_LUMA}, INT_MIN, INT_MAX, FLAGS, "test" },
74 { "amp_chroma", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_AMP_CHROMA}, INT_MIN, INT_MAX, FLAGS, "test" },
75 { "cbp", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_CBP}, INT_MIN, INT_MAX, FLAGS, "test" },
76 { "mv", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_MV}, INT_MIN, INT_MAX, FLAGS, "test" },
77 { "ring1", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING1}, INT_MIN, INT_MAX, FLAGS, "test" },
78 { "ring2", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_RING2}, INT_MIN, INT_MAX, FLAGS, "test" },
79 { "all", "", 0, AV_OPT_TYPE_CONST, {.i64=TEST_ALL}, INT_MIN, INT_MAX, FLAGS, "test" },
80 { "max_frames", "Set the maximum number of frames generated for each test", OFFSET(max_frames),
81 AV_OPT_TYPE_INT64, {.i64 = 30}, 1, INT64_MAX, FLAGS },
82 { "m", "Set the maximum number of frames generated for each test", OFFSET(max_frames),
83 AV_OPT_TYPE_INT64, {.i64 = 30}, 1, INT64_MAX, FLAGS },
87 AVFILTER_DEFINE_CLASS(mptestsrc);
91 static void init_idct(void)
95 for (i = 0; i < 8; i++) {
96 double s = i == 0 ? sqrt(0.125) : 0.5;
98 for (j = 0; j < 8; j++)
99 c[i*8+j] = s*cos((M_PI/8.0)*i*(j+0.5));
103 static void idct(uint8_t *dst, int dst_linesize, int src[64])
108 for (i = 0; i < 8; i++) {
109 for (j = 0; j < 8; j++) {
112 for (k = 0; k < 8; k++)
113 sum += c[k*8+j] * src[8*i+k];
119 for (j = 0; j < 8; j++) {
120 for (i = 0; i < 8; i++) {
123 for (k = 0; k < 8; k++)
124 sum += c[k*8+i]*tmp[8*k+j];
126 dst[dst_linesize*i + j] = av_clip_uint8(lrint(sum));
131 static void draw_dc(uint8_t *dst, int dst_linesize, int color, int w, int h)
135 for (y = 0; y < h; y++)
136 for (x = 0; x < w; x++)
137 dst[x + y*dst_linesize] = color;
140 static void draw_basis(uint8_t *dst, int dst_linesize, int amp, int freq, int dc)
144 memset(src, 0, 64*sizeof(int));
148 idct(dst, dst_linesize, src);
151 static void draw_cbp(uint8_t *dst[3], int dst_linesize[3], int cbp, int amp, int dc)
153 if (cbp&1) draw_basis(dst[0] , dst_linesize[0], amp, 1, dc);
154 if (cbp&2) draw_basis(dst[0]+8 , dst_linesize[0], amp, 1, dc);
155 if (cbp&4) draw_basis(dst[0]+ 8*dst_linesize[0], dst_linesize[0], amp, 1, dc);
156 if (cbp&8) draw_basis(dst[0]+8+8*dst_linesize[0], dst_linesize[0], amp, 1, dc);
157 if (cbp&16) draw_basis(dst[1] , dst_linesize[1], amp, 1, dc);
158 if (cbp&32) draw_basis(dst[2] , dst_linesize[2], amp, 1, dc);
161 static void dc_test(uint8_t *dst, int dst_linesize, int w, int h, int off)
163 const int step = FFMAX(256/(w*h/256), 1);
164 int x, y, color = off;
166 for (y = 0; y < h; y += 16) {
167 for (x = 0; x < w; x += 16) {
168 draw_dc(dst + x + y*dst_linesize, dst_linesize, color, 8, 8);
174 static void freq_test(uint8_t *dst, int dst_linesize, int off)
178 for (y = 0; y < 8*16; y += 16) {
179 for (x = 0; x < 8*16; x += 16) {
180 draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*(96+off), freq, 128*8);
186 static void amp_test(uint8_t *dst, int dst_linesize, int off)
190 for (y = 0; y < 16*16; y += 16) {
191 for (x = 0; x < 16*16; x += 16) {
192 draw_basis(dst + x + y*dst_linesize, dst_linesize, 4*amp, 1, 128*8);
198 static void cbp_test(uint8_t *dst[3], int dst_linesize[3], int off)
202 for (y = 0; y < 16*8; y += 16) {
203 for (x = 0; x < 16*8; x += 16) {
205 dst1[0] = dst[0] + x*2 + y*2*dst_linesize[0];
206 dst1[1] = dst[1] + x + y* dst_linesize[1];
207 dst1[2] = dst[2] + x + y* dst_linesize[2];
209 draw_cbp(dst1, dst_linesize, cbp, (64+off)*4, 128*8);
215 static void mv_test(uint8_t *dst, int dst_linesize, int off)
219 for (y = 0; y < 16*16; y++) {
222 for (x = 0; x < 16*16; x++)
223 dst[x + y*dst_linesize] = x + off*8/(y/32+1);
227 static void ring1_test(uint8_t *dst, int dst_linesize, int off)
231 for (y = off; y < 16*16; y += 16) {
232 for (x = off; x < 16*16; x += 16) {
233 draw_dc(dst + x + y*dst_linesize, dst_linesize, ((x+y)&16) ? color : -color, 16, 16);
239 static void ring2_test(uint8_t *dst, int dst_linesize, int off)
243 for (y = 0; y < 16*16; y++) {
244 for (x = 0; x < 16*16; x++) {
245 double d = hypot(x-8*16, y-8*16);
246 double r = d/20 - (int)(d/20);
248 dst[x + y*dst_linesize] = 255;
249 dst[x + y*dst_linesize+256] = 0;
251 dst[x + y*dst_linesize] = x;
252 dst[x + y*dst_linesize+256] = x;
258 static av_cold int init(AVFilterContext *ctx)
260 MPTestContext *test = ctx->priv;
262 test->max_pts = test->duration >= 0 ?
263 av_rescale_q(test->duration, AV_TIME_BASE_Q, av_inv_q(test->frame_rate)) : -1;
266 av_log(ctx, AV_LOG_VERBOSE, "rate:%d/%d duration:%f\n",
267 test->frame_rate.num, test->frame_rate.den,
268 test->duration < 0 ? -1 : test->max_pts * av_q2d(av_inv_q(test->frame_rate)));
274 static int config_props(AVFilterLink *outlink)
276 AVFilterContext *ctx = outlink->src;
277 MPTestContext *test = ctx->priv;
278 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(outlink->format);
280 test->hsub = pix_desc->log2_chroma_w;
281 test->vsub = pix_desc->log2_chroma_h;
285 outlink->time_base = av_inv_q(test->frame_rate);
286 outlink->frame_rate = test->frame_rate;
291 static int request_frame(AVFilterLink *outlink)
293 MPTestContext *test = outlink->src->priv;
295 int w = WIDTH, h = HEIGHT,
296 cw = AV_CEIL_RSHIFT(w, test->hsub), ch = AV_CEIL_RSHIFT(h, test->vsub);
297 uint64_t frame = outlink->frame_count_in / test->max_frames;
298 uint64_t mod = outlink->frame_count_in % test->max_frames;
299 enum test_type tt = test->test;
302 if (test->max_pts >= 0 && test->pts > test->max_pts)
304 picref = ff_get_video_buffer(outlink, w, h);
306 return AVERROR(ENOMEM);
307 picref->pts = test->pts++;
308 picref->duration = 1;
311 for (i = 0; i < h; i++)
312 memset(picref->data[0] + i*picref->linesize[0], 0, w);
313 for (i = 0; i < ch; i++) {
314 memset(picref->data[1] + i*picref->linesize[1], 128, cw);
315 memset(picref->data[2] + i*picref->linesize[2], 128, cw);
318 if (tt == TEST_ALL && mod) /* draw a black frame at the beginning of each test */
319 tt = frame%(TEST_NB-1);
322 case TEST_DC_LUMA: dc_test(picref->data[0], picref->linesize[0], 256, 256, mod); break;
323 case TEST_DC_CHROMA: dc_test(picref->data[1], picref->linesize[1], 256, 256, mod); break;
324 case TEST_FREQ_LUMA: freq_test(picref->data[0], picref->linesize[0], mod); break;
325 case TEST_FREQ_CHROMA: freq_test(picref->data[1], picref->linesize[1], mod); break;
326 case TEST_AMP_LUMA: amp_test(picref->data[0], picref->linesize[0], mod); break;
327 case TEST_AMP_CHROMA: amp_test(picref->data[1], picref->linesize[1], mod); break;
328 case TEST_CBP: cbp_test(picref->data , picref->linesize , mod); break;
329 case TEST_MV: mv_test(picref->data[0], picref->linesize[0], mod); break;
330 case TEST_RING1: ring1_test(picref->data[0], picref->linesize[0], mod); break;
331 case TEST_RING2: ring2_test(picref->data[0], picref->linesize[0], mod); break;
334 return ff_filter_frame(outlink, picref);
337 static const AVFilterPad mptestsrc_outputs[] = {
340 .type = AVMEDIA_TYPE_VIDEO,
341 .request_frame = request_frame,
342 .config_props = config_props,
346 const AVFilter ff_vsrc_mptestsrc = {
348 .description = NULL_IF_CONFIG_SMALL("Generate various test pattern."),
349 .priv_size = sizeof(MPTestContext),
350 .priv_class = &mptestsrc_class,
353 FILTER_OUTPUTS(mptestsrc_outputs),
354 FILTER_SINGLE_PIXFMT(AV_PIX_FMT_YUV420P),