FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/src_avsynctest.c
Date: 2025-03-22 04:08:01
Exec Total Coverage
Lines: 0 182 0.0%
Functions: 0 9 0.0%
Branches: 0 62 0.0%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2017-2022 Paul B Mahol
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/avassert.h"
22 #include "libavutil/common.h"
23 #include "libavutil/channel_layout.h"
24 #include "libavutil/ffmath.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/imgutils.h"
27 #include "libavutil/intreadwrite.h"
28 #include "libavutil/parseutils.h"
29 #include "libavutil/timestamp.h"
30 #include "libavutil/xga_font_data.h"
31 #include "avfilter.h"
32 #include "drawutils.h"
33 #include "filters.h"
34 #include "formats.h"
35 #include "audio.h"
36 #include "video.h"
37
38 typedef struct AVSyncTestContext {
39 const AVClass *class;
40
41 int w, h;
42 AVRational frame_rate;
43 int sample_rate;
44 int64_t duration;
45 int64_t apts, vpts;
46 float amplitude;
47 int period;
48 int delay;
49 int cycle;
50
51 int beep;
52 int beep_duration;
53 int flash;
54 int dir;
55 AVRational vdelay, delay_max, delay_min;
56 AVRational delay_range;
57 int64_t prev_intpart;
58
59 uint8_t rgba[3][4];
60 FFDrawContext draw;
61 FFDrawColor fg;
62 FFDrawColor bg;
63 FFDrawColor ag;
64 } AVSyncTestContext;
65
66 #define OFFSET(x) offsetof(AVSyncTestContext, x)
67 #define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
68 #define V AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
69 #define R AV_OPT_FLAG_RUNTIME_PARAM
70
71 static const AVOption avsynctest_options[] = {
72 {"size", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, V },
73 {"s", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, V },
74 {"framerate", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="30"}, 0,INT_MAX, V },
75 {"fr", "set frame rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="30"}, 0,INT_MAX, V },
76 {"samplerate", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64=44100},8000,384000, A },
77 {"sr", "set sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64=44100},8000,384000, A },
78 {"amplitude", "set beep amplitude", OFFSET(amplitude), AV_OPT_TYPE_FLOAT, {.dbl=.7}, 0., 1., A|R },
79 {"a", "set beep amplitude", OFFSET(amplitude), AV_OPT_TYPE_FLOAT, {.dbl=.7}, 0., 1., A|R },
80 {"period", "set beep period", OFFSET(period), AV_OPT_TYPE_INT, {.i64=3}, 1, 99., A },
81 {"p", "set beep period", OFFSET(period), AV_OPT_TYPE_INT, {.i64=3}, 1, 99., A },
82 {"delay", "set flash delay", OFFSET(delay), AV_OPT_TYPE_INT, {.i64=0}, -30, 30, V|R },
83 {"dl", "set flash delay", OFFSET(delay), AV_OPT_TYPE_INT, {.i64=0}, -30, 30, V|R },
84 {"cycle", "set delay cycle", OFFSET(cycle), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, V|R },
85 {"c", "set delay cycle", OFFSET(cycle), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, V|R },
86 {"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=0}, 0, INT64_MAX, V|A },
87 {"d", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=0}, 0, INT64_MAX, V|A },
88 {"fg", "set foreground color", OFFSET(rgba[0]), AV_OPT_TYPE_COLOR, {.str="white"}, 0, 0, V },
89 {"bg", "set background color", OFFSET(rgba[1]), AV_OPT_TYPE_COLOR, {.str="black"}, 0, 0, V },
90 {"ag", "set additional color", OFFSET(rgba[2]), AV_OPT_TYPE_COLOR, {.str="gray"}, 0, 0, V },
91 {NULL},
92 };
93
94 AVFILTER_DEFINE_CLASS(avsynctest);
95
96 static av_cold int query_formats(const AVFilterContext *ctx,
97 AVFilterFormatsConfig **cfg_in,
98 AVFilterFormatsConfig **cfg_out)
99 {
100 const AVSyncTestContext *s = ctx->priv;
101 int sample_rates[] = { s->sample_rate, -1 };
102 static const enum AVSampleFormat sample_fmts[] = {
103 AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_NONE
104 };
105 static const AVChannelLayout layouts[] = {
106 AV_CHANNEL_LAYOUT_MONO,
107 { .nb_channels = 0 },
108 };
109 AVFilterFormats *formats;
110 int ret;
111
112 formats = ff_make_format_list(sample_fmts);
113 if (!formats)
114 return AVERROR(ENOMEM);
115 if ((ret = ff_formats_ref(formats, &cfg_out[0]->formats)) < 0)
116 return ret;
117
118 formats = ff_draw_supported_pixel_formats(0);
119 if (!formats)
120 return AVERROR(ENOMEM);
121 if ((ret = ff_formats_ref(formats, &cfg_out[1]->formats)) < 0)
122 return ret;
123
124 ret = ff_set_common_channel_layouts_from_list2(ctx, cfg_in, cfg_out, layouts);
125 if (ret < 0)
126 return ret;
127
128 return ff_set_common_samplerates_from_list2(ctx, cfg_in, cfg_out, sample_rates);
129 }
130
131 static av_cold int aconfig_props(AVFilterLink *outlink)
132 {
133 AVFilterContext *ctx = outlink->src;
134 AVSyncTestContext *s = ctx->priv;
135
136 outlink->sample_rate = s->sample_rate;
137 outlink->time_base = (AVRational){1, s->sample_rate};
138
139 s->beep_duration = av_rescale(s->sample_rate, s->frame_rate.den, s->frame_rate.num);
140 s->duration = av_rescale(s->duration, s->sample_rate, AV_TIME_BASE);
141
142 return 0;
143 }
144
145 static av_cold int config_props(AVFilterLink *outlink)
146 {
147 FilterLink *l = ff_filter_link(outlink);
148 AVFilterContext *ctx = outlink->src;
149 AVSyncTestContext *s = ctx->priv;
150 int ret;
151
152 outlink->w = s->w;
153 outlink->h = s->h;
154 outlink->time_base = av_inv_q(s->frame_rate);
155 l->frame_rate = s->frame_rate;
156 outlink->sample_aspect_ratio = (AVRational) {1, 1};
157 s->delay_min = av_mul_q(s->frame_rate, av_make_q(-1, 2));
158 s->delay_max = av_mul_q(s->delay_min, av_make_q(-1, 1));
159 s->delay_range = av_sub_q(s->delay_max, s->delay_min);
160 s->vdelay = av_make_q(s->delay, 1);
161 s->dir = 1;
162 s->prev_intpart = INT64_MIN;
163
164 ret = ff_draw_init2(&s->draw, outlink->format, outlink->colorspace, outlink->color_range, 0);
165 if (ret < 0) {
166 av_log(ctx, AV_LOG_ERROR, "Failed to initialize FFDrawContext\n");
167 return ret;
168 }
169
170 ff_draw_color(&s->draw, &s->fg, s->rgba[0]);
171 ff_draw_color(&s->draw, &s->bg, s->rgba[1]);
172 ff_draw_color(&s->draw, &s->ag, s->rgba[2] );
173
174 return 0;
175 }
176
177 #define FPI 0x8000
178
179 static int32_t sin32(int32_t x, AVRational scale)
180 {
181 const double pi = M_PI;
182 const int32_t a = ((2.0 * pi) * (1 << 24));
183 const int32_t b = (1 << 7) * (12.0 / pi - 1.0 - pi) * (1 << 24);
184 const int32_t c = (1 << 9) * 3.0 * (2.0 + pi - 16.0 / pi) * (1 << 24);
185 int64_t x2, result;
186 int32_t t1, t2;
187
188 x &= 2 * FPI - 1;
189
190 if (x >= (3 * FPI / 2))
191 x = x - 2 * FPI;
192 else if (x > FPI / 2)
193 x = FPI - x;
194
195 x2 = x * x;
196 t1 = (x2 * c) >> 32;
197 t2 = ((b + t1) * x2) >> 32;
198 x = x << 8;
199
200 result = a + t2;
201 result *= x;
202 result += (1U << 31);
203 result >>= 17;
204 result = av_rescale(result, scale.num, scale.den);
205
206 return result;
207 }
208
209 static int audio_frame(AVFilterLink *outlink)
210 {
211 AVFilterContext *ctx = outlink->src;
212 AVSyncTestContext *s = ctx->priv;
213 const AVRational a = av_d2q(s->amplitude, 32768);
214 int64_t duration[2];
215 int64_t delta;
216 AVFrame *out;
217 int32_t *dst;
218
219 delta = av_rescale_q(s->vpts, av_make_q(s->sample_rate, 1), s->frame_rate) - s->apts;
220 if (delta < 0)
221 return 1;
222
223 duration[0] = av_rescale_rnd(s->sample_rate, s->frame_rate.den, s->frame_rate.num, AV_ROUND_DOWN);
224 duration[1] = av_rescale_rnd(s->sample_rate, s->frame_rate.den, s->frame_rate.num, AV_ROUND_UP);
225
226 delta = duration[delta > 0];
227 out = ff_get_audio_buffer(outlink, delta);
228 if (!out)
229 return AVERROR(ENOMEM);
230
231 out->pts = s->apts;
232 dst = (int32_t *)out->data[0];
233
234 for (int i = 0; i < delta; i++) {
235 if (((s->apts + i) % (s->period * s->sample_rate)) == 0)
236 s->beep = 1;
237 if (s->beep) {
238 dst[i] = sin32(av_rescale_q(800LL * 2LL * FPI, outlink->time_base, av_make_q(1, s->apts + i)), a);
239 s->beep++;
240 } else {
241 dst[i] = 0;
242 }
243 if (s->beep >= s->beep_duration) {
244 s->beep = 0;
245 }
246 }
247 s->apts += out->nb_samples;
248
249 return ff_filter_frame(outlink, out);
250 }
251
252 static void draw_text(FFDrawContext *draw, AVFrame *out, FFDrawColor *color,
253 int x0, int y0, const uint8_t *text)
254 {
255 int x = x0;
256
257 for (; *text; text++) {
258 if (*text == '\n') {
259 x = x0;
260 y0 += 8;
261 continue;
262 }
263 ff_blend_mask(draw, color, out->data, out->linesize,
264 out->width, out->height,
265 avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
266 x += 8;
267 }
268 }
269
270 static int offset(int x, int num, int den)
271 {
272 return av_rescale_rnd(x, num, den, AV_ROUND_UP);
273 }
274
275 static int video_frame(AVFilterLink *outlink)
276 {
277 AVFilterContext *ctx = outlink->src;
278 AVSyncTestContext *s = ctx->priv;
279 const int w = outlink->w;
280 const int h = outlink->h;
281 const int step = av_rescale_rnd(w, s->delay_range.den, s->delay_range.num, AV_ROUND_DOWN);
282 char text[128];
283 int new_offset;
284 int64_t delta, temp, intpart;
285 AVFrame *out;
286
287 if (!s->cycle)
288 s->vdelay = av_make_q(s->delay, 1);
289
290 delta = av_rescale_q(s->apts, s->frame_rate, av_make_q(s->sample_rate, 1)) - s->vpts;
291 if (delta < 0)
292 return 1;
293
294 out = ff_get_video_buffer(outlink, w, h);
295 if (!out)
296 return AVERROR(ENOMEM);
297
298 ff_fill_rectangle(&s->draw, &s->bg, out->data, out->linesize, 0, 0, w, h);
299
300 snprintf(text, sizeof(text), "FRN: %"PRId64"", s->vpts);
301 draw_text(&s->draw, out, &s->fg, offset(w, 1, 10), offset(h, 1, 10), text);
302
303 snprintf(text, sizeof(text), "SEC: %s", av_ts2timestr(s->vpts, &outlink->time_base));
304 draw_text(&s->draw, out, &s->fg, offset(w, 1, 10), offset(h, 9, 10), text);
305
306 snprintf(text, sizeof(text), "DLY: %d", s->vdelay.num);
307 draw_text(&s->draw, out, &s->fg, offset(w, 9, 10) - strlen(text) * 8, offset(h, 9, 10), text);
308
309 snprintf(text, sizeof(text), "FPS: %d/%d", s->frame_rate.num, s->frame_rate.den);
310 draw_text(&s->draw, out, &s->fg, offset(w, 9, 10) - strlen(text) * 8, offset(h, 1, 10), text);
311
312 snprintf(text, sizeof(text), "P: %d", s->period);
313 draw_text(&s->draw, out, &s->ag, offset(w, 1, 2) - strlen(text) * 4, offset(h, 9, 10), text);
314
315 snprintf(text, sizeof(text), "SR: %d", s->sample_rate);
316 draw_text(&s->draw, out, &s->ag, offset(w, 1, 2) - strlen(text) * 4, offset(h, 1, 10), text);
317
318 snprintf(text, sizeof(text), "A: %1.2f", s->amplitude);
319 draw_text(&s->draw, out, &s->ag, offset(w, 1, 10), offset(h, 1, 2), text);
320
321 snprintf(text, sizeof(text), "WxH: %dx%d", w, h);
322 draw_text(&s->draw, out, &s->ag, offset(w, 9, 10) - strlen(text) * 8, offset(h, 1, 2), text);
323
324 temp = s->vpts + s->vdelay.num;
325 intpart = av_rescale_rnd(temp, outlink->time_base.num, outlink->time_base.den, AV_ROUND_NEAR_INF);
326 intpart = temp - av_rescale_rnd(intpart, outlink->time_base.den, outlink->time_base.num, AV_ROUND_NEAR_INF);
327
328 new_offset = offset(w, 1, 2);
329 ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
330 av_clip(new_offset + step * intpart, 0, w - 2),
331 offset(h, 141, 200), offset(step, 2, 3), offset(h, 1, 25));
332
333 if (intpart == 0 && s->prev_intpart != intpart) {
334 if (s->flash >= s->period) {
335 int result;
336
337 if (s->cycle)
338 s->vdelay = av_add_q(s->vdelay, av_make_q(s->dir, 1));
339 result = av_cmp_q(s->vdelay, s->delay_max);
340 if (result >= 0)
341 s->dir = -1;
342 result = av_cmp_q(s->vdelay, s->delay_min);
343 if (result <= 0)
344 s->dir = 1;
345 ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
346 offset(w, 1, 3), offset(h, 1, 3), offset(w, 1, 3), offset(h, 1, 4));
347 s->flash = 0;
348 }
349 s->flash++;
350 }
351 s->prev_intpart = intpart;
352
353 for (int i = av_rescale(s->delay_min.num, 1, s->delay_min.den);
354 i < av_rescale(s->delay_max.num, 1, s->delay_max.den); i++) {
355 ff_fill_rectangle(&s->draw, &s->fg, out->data, out->linesize,
356 av_clip(new_offset + step * i, 0, w - 2),
357 offset(h, 7, 10), 1, offset(h, 1, 20));
358 }
359
360 out->pts = s->vpts++;
361 out->duration = 1;
362
363 return ff_filter_frame(outlink, out);
364 }
365
366 static int activate(AVFilterContext *ctx)
367 {
368 AVSyncTestContext *s = ctx->priv;
369 AVFilterLink *aoutlink = ctx->outputs[0];
370 AVFilterLink *voutlink = ctx->outputs[1];
371 int ret = FFERROR_NOT_READY;
372
373 if (!ff_outlink_frame_wanted(aoutlink) &&
374 !ff_outlink_frame_wanted(voutlink))
375 return ret;
376
377 if (s->duration > 0 && s->apts >= s->duration) {
378 ff_outlink_set_status(aoutlink, AVERROR_EOF, s->apts);
379 ff_outlink_set_status(voutlink, AVERROR_EOF, s->vpts);
380 return 0;
381 }
382
383 ret = audio_frame(aoutlink);
384 if (ret < 0)
385 return ret;
386 ret = video_frame(voutlink);
387
388 return ret;
389 }
390
391 static const AVFilterPad avsynctest_outputs[] = {
392 {
393 .name = "audio",
394 .type = AVMEDIA_TYPE_AUDIO,
395 .config_props = aconfig_props,
396 },
397 {
398 .name = "video",
399 .type = AVMEDIA_TYPE_VIDEO,
400 .config_props = config_props,
401 },
402 };
403
404 const FFFilter ff_avsrc_avsynctest = {
405 .p.name = "avsynctest",
406 .p.description = NULL_IF_CONFIG_SMALL("Generate an Audio Video Sync Test."),
407 .p.priv_class = &avsynctest_class,
408 .priv_size = sizeof(AVSyncTestContext),
409 .activate = activate,
410 FILTER_OUTPUTS(avsynctest_outputs),
411 FILTER_QUERY_FUNC2(query_formats),
412 .process_command = ff_filter_process_command,
413 };
414