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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavfilter / vsrc_mptestsrc.c
CommitLineData
2ba45a60
DM		 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};
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