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avf_showcqt.c
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1/*
2 * Copyright (c) 2014-2015 Muhammad Faiz <mfcc64@gmail.com>
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 "config.h"
22#include "libavutil/attributes.h"
23#include "libavutil/mem.h"
24#include "libavutil/tx.h"
25#include "libavutil/channel_layout.h"
26#include "libavutil/opt.h"
27#include "libavutil/xga_font_data.h"
28#include "libavutil/eval.h"
29#include "libavutil/pixdesc.h"
30#include "libavutil/time.h"
31#include "audio.h"
32#include "avfilter.h"
33#include "filters.h"
34#include "formats.h"
35#include "lavfutils.h"
36#include "lswsutils.h"
37#include "video.h"
38
39#if CONFIG_LIBFREETYPE
40#include <ft2build.h>
41#include FT_FREETYPE_H
42#endif
43
44#if CONFIG_LIBFONTCONFIG
45#include <fontconfig/fontconfig.h>
46#endif
47
48#include "avf_showcqt.h"
49
50#define BASEFREQ 20.01523126408007475
51#define ENDFREQ 20495.59681441799654
52#define TLENGTH "384*tc/(384+tc*f)"
53#define TLENGTH_MIN 0.001
54#define VOLUME_MAX 100.0
55#define FONTCOLOR "st(0, (midi(f)-59.5)/12);" \
56 "st(1, if(between(ld(0),0,1), 0.5-0.5*cos(2*PI*ld(0)), 0));" \
57 "r(1-ld(1)) + b(ld(1))"
58#define CSCHEME "1|0.5|0|0|0.5|1"
59
60#define OFFSET(x) offsetof(ShowCQTContext, x)
61#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
62
63static const AVOption showcqt_options[] = {
64 { "size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
65 { "s", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
66 { "fps", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
67 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
68 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
69 { "bar_h", "set bargraph height", OFFSET(bar_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
70 { "axis_h", "set axis height", OFFSET(axis_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
71 { "sono_h", "set sonogram height", OFFSET(sono_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
72 { "fullhd", "set fullhd size", OFFSET(fullhd), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
73 { "sono_v", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, 0, 0, FLAGS },
74 { "volume", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, 0, 0, FLAGS },
75 { "bar_v", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, 0, 0, FLAGS },
76 { "volume2", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, 0, 0, FLAGS },
77 { "sono_g", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
78 { "gamma", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
79 { "bar_g", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
80 { "gamma2", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
81 { "bar_t", "set bar transparency", OFFSET(bar_t), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, FLAGS },
82 { "timeclamp", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
83 { "tc", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
84 { "attack", "set attack time", OFFSET(attack), AV_OPT_TYPE_DOUBLE, { .dbl = 0 }, 0.0, 1.0, FLAGS },
85 { "basefreq", "set base frequency", OFFSET(basefreq), AV_OPT_TYPE_DOUBLE, { .dbl = BASEFREQ }, 10.0, 100000.0, FLAGS },
86 { "endfreq", "set end frequency", OFFSET(endfreq), AV_OPT_TYPE_DOUBLE, { .dbl = ENDFREQ }, 10.0, 100000.0, FLAGS },
87 { "coeffclamp", "set coeffclamp", OFFSET(coeffclamp), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.1, 10.0, FLAGS },
88 { "tlength", "set tlength", OFFSET(tlength), AV_OPT_TYPE_STRING, { .str = TLENGTH }, 0, 0, FLAGS },
89 { "count", "set transform count", OFFSET(count), AV_OPT_TYPE_INT, { .i64 = 6 }, 1, 30, FLAGS },
90 { "fcount", "set frequency count", OFFSET(fcount), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, FLAGS },
91 { "fontfile", "set axis font file", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
92 { "font", "set axis font", OFFSET(font), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
93 { "fontcolor", "set font color", OFFSET(fontcolor), AV_OPT_TYPE_STRING, { .str = FONTCOLOR }, 0, 0, FLAGS },
94 { "axisfile", "set axis image", OFFSET(axisfile), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
95 { "axis", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
96 { "text", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
97 { "csp", "set color space", OFFSET(csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, FLAGS, .unit = "csp" },
98 { "unspecified", "unspecified", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, 0, FLAGS, .unit = "csp" },
99 { "bt709", "bt709", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT709 }, 0, 0, FLAGS, .unit = "csp" },
100 { "fcc", "fcc", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_FCC }, 0, 0, FLAGS, .unit = "csp" },
101 { "bt470bg", "bt470bg", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT470BG }, 0, 0, FLAGS, .unit = "csp" },
102 { "smpte170m", "smpte170m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE170M }, 0, 0, FLAGS, .unit = "csp" },
103 { "smpte240m", "smpte240m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE240M }, 0, 0, FLAGS, .unit = "csp" },
104 { "bt2020ncl", "bt2020ncl", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT2020_NCL }, 0, 0, FLAGS, .unit = "csp" },
105 { "cscheme", "set color scheme", OFFSET(cscheme), AV_OPT_TYPE_STRING, { .str = CSCHEME }, 0, 0, FLAGS },
106 { NULL }
107};
108
109AVFILTER_DEFINE_CLASS(showcqt);
110
111static void common_uninit(ShowCQTContext *s)
112{
113 int k;
114 int level = AV_LOG_DEBUG;
115 int64_t plot_time;
116
117 if (s->fft_time)
118 av_log(s->ctx, level, "fft_time = %16.3f s.\n", s->fft_time * 1e-6);
119 if (s->cqt_time)
120 av_log(s->ctx, level, "cqt_time = %16.3f s.\n", s->cqt_time * 1e-6);
121 if (s->process_cqt_time)
122 av_log(s->ctx, level, "process_cqt_time = %16.3f s.\n", s->process_cqt_time * 1e-6);
123 if (s->update_sono_time)
124 av_log(s->ctx, level, "update_sono_time = %16.3f s.\n", s->update_sono_time * 1e-6);
125 if (s->alloc_time)
126 av_log(s->ctx, level, "alloc_time = %16.3f s.\n", s->alloc_time * 1e-6);
127 if (s->bar_time)
128 av_log(s->ctx, level, "bar_time = %16.3f s.\n", s->bar_time * 1e-6);
129 if (s->axis_time)
130 av_log(s->ctx, level, "axis_time = %16.3f s.\n", s->axis_time * 1e-6);
131 if (s->sono_time)
132 av_log(s->ctx, level, "sono_time = %16.3f s.\n", s->sono_time * 1e-6);
133
134 plot_time = s->fft_time + s->cqt_time + s->process_cqt_time + s->update_sono_time
135 + s->alloc_time + s->bar_time + s->axis_time + s->sono_time;
136 if (plot_time)
137 av_log(s->ctx, level, "plot_time = %16.3f s.\n", plot_time * 1e-6);
138
139 s->fft_time = s->cqt_time = s->process_cqt_time = s->update_sono_time
140 = s->alloc_time = s->bar_time = s->axis_time = s->sono_time = 0;
141 /* axis_frame may be non reference counted frame */
142 if (s->axis_frame && !s->axis_frame->buf[0]) {
143 av_freep(s->axis_frame->data);
144 for (k = 0; k < 4; k++)
145 s->axis_frame->data[k] = NULL;
146 }
147
148 av_frame_free(&s->axis_frame);
149 av_frame_free(&s->sono_frame);
150 av_tx_uninit(&s->fft_ctx);
151 if (s->coeffs)
152 for (k = 0; k < s->cqt_len; k++)
153 av_freep(&s->coeffs[k].val);
154 av_freep(&s->coeffs);
155 av_freep(&s->fft_data);
156 av_freep(&s->fft_input);
157 av_freep(&s->fft_result);
158 av_freep(&s->cqt_result);
159 av_freep(&s->attack_data);
160 av_freep(&s->c_buf);
161 av_freep(&s->h_buf);
162 av_freep(&s->rcp_h_buf);
163 av_freep(&s->freq);
164 av_freep(&s->sono_v_buf);
165 av_freep(&s->bar_v_buf);
166}
167
168static double *create_freq_table(double base, double end, int n)
169{
170 double log_base, log_end;
171 double rcp_n = 1.0 / n;
172 double *freq;
173 int x;
174
175 freq = av_malloc_array(n, sizeof(*freq));
176 if (!freq)
177 return NULL;
178
179 log_base = log(base);
180 log_end = log(end);
181 for (x = 0; x < n; x++) {
182 double log_freq = log_base + (x + 0.5) * (log_end - log_base) * rcp_n;
183 freq[x] = exp(log_freq);
184 }
185 return freq;
186}
187
188static double clip_with_log(void *log_ctx, const char *name,
189 double val, double min, double max,
190 double nan_replace, int idx)
191{
192 int level = AV_LOG_WARNING;
193 if (isnan(val)) {
194 av_log(log_ctx, level, "[%d] %s is nan, setting it to %g.\n",
195 idx, name, nan_replace);
196 val = nan_replace;
197 } else if (val < min) {
198 av_log(log_ctx, level, "[%d] %s is too low (%g), setting it to %g.\n",
199 idx, name, val, min);
200 val = min;
201 } else if (val > max) {
202 av_log(log_ctx, level, "[%d] %s it too high (%g), setting it to %g.\n",
203 idx, name, val, max);
204 val = max;
205 }
206 return val;
207}
208
209static double a_weighting(void *p, double f)
210{
211 double ret = 12200.0*12200.0 * (f*f*f*f);
212 ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) *
213 sqrt((f*f + 107.7*107.7) * (f*f + 737.9*737.9));
214 return ret;
215}
216
217static double b_weighting(void *p, double f)
218{
219 double ret = 12200.0*12200.0 * (f*f*f);
220 ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * sqrt(f*f + 158.5*158.5);
221 return ret;
222}
223
224static double c_weighting(void *p, double f)
225{
226 double ret = 12200.0*12200.0 * (f*f);
227 ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0);
228 return ret;
229}
230
231static int init_volume(ShowCQTContext *s)
232{
233 const char *func_names[] = { "a_weighting", "b_weighting", "c_weighting", NULL };
234 const char *sono_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "bar_v", NULL };
235 const char *bar_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "sono_v", NULL };
236 double (*funcs[])(void *, double) = { a_weighting, b_weighting, c_weighting };
237 AVExpr *sono = NULL, *bar = NULL;
238 int x, ret = AVERROR(ENOMEM);
239
240 s->sono_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->sono_v_buf));
241 s->bar_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->bar_v_buf));
242 if (!s->sono_v_buf || !s->bar_v_buf)
243 goto error;
244
245 if ((ret = av_expr_parse(&sono, s->sono_v, sono_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
246 goto error;
247
248 if ((ret = av_expr_parse(&bar, s->bar_v, bar_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
249 goto error;
250
251 for (x = 0; x < s->cqt_len; x++) {
252 double vars[] = { s->timeclamp, s->timeclamp, s->freq[x], s->freq[x], s->freq[x], 0.0 };
253 double vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
254 vars[5] = vol;
255 vol = clip_with_log(s->ctx, "bar_v", av_expr_eval(bar, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
256 s->bar_v_buf[x] = vol * vol;
257 vars[5] = vol;
258 vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
259 s->sono_v_buf[x] = vol * vol;
260 }
261 av_expr_free(sono);
262 av_expr_free(bar);
263 return 0;
264
265error:
266 av_freep(&s->sono_v_buf);
267 av_freep(&s->bar_v_buf);
268 av_expr_free(sono);
269 av_expr_free(bar);
270 return ret;
271}
272
273static void cqt_calc(AVComplexFloat *dst, const AVComplexFloat *src, const Coeffs *coeffs,
274 int len, int fft_len)
275{
276 int k, x, i, j;
277 for (k = 0; k < len; k++) {
278 AVComplexFloat l, r, a = {0,0}, b = {0,0};
279
280 for (x = 0; x < coeffs[k].len; x++) {
281 float u = coeffs[k].val[x];
282 i = coeffs[k].start + x;
283 j = fft_len - i;
284 a.re += u * src[i].re;
285 a.im += u * src[i].im;
286 b.re += u * src[j].re;
287 b.im += u * src[j].im;
288 }
289
290 /* separate left and right, (and multiply by 2.0) */
291 l.re = a.re + b.re;
292 l.im = a.im - b.im;
293 r.re = b.im + a.im;
294 r.im = b.re - a.re;
295 dst[k].re = l.re * l.re + l.im * l.im;
296 dst[k].im = r.re * r.re + r.im * r.im;
297 }
298}
299
300static int init_cqt(ShowCQTContext *s)
301{
302 const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
303 AVExpr *expr = NULL;
304 int rate = s->ctx->inputs[0]->sample_rate;
305 int nb_cqt_coeffs = 0;
306 int k, x, ret;
307
308 if ((ret = av_expr_parse(&expr, s->tlength, var_names, NULL, NULL, NULL, NULL, 0, s->ctx)) < 0)
309 goto error;
310
311 ret = AVERROR(ENOMEM);
312 if (!(s->coeffs = av_calloc(s->cqt_len, sizeof(*s->coeffs))))
313 goto error;
314
315 for (k = 0; k < s->cqt_len; k++) {
316 double vars[] = { s->timeclamp, s->timeclamp, s->freq[k], s->freq[k], s->freq[k] };
317 double flen, center, tlength;
318 int start, end, m = k;
319
320 if (s->freq[k] > 0.5 * rate)
321 continue;
322 tlength = clip_with_log(s->ctx, "tlength", av_expr_eval(expr, vars, NULL),
323 TLENGTH_MIN, s->timeclamp, s->timeclamp, k);
324
325 flen = 8.0 * s->fft_len / (tlength * rate);
326 center = s->freq[k] * s->fft_len / rate;
327 start = FFMAX(0, ceil(center - 0.5 * flen));
328 end = FFMIN(s->fft_len, floor(center + 0.5 * flen));
329
330 s->coeffs[m].start = start & ~(s->cqt_align - 1);
331 s->coeffs[m].len = (end | (s->cqt_align - 1)) + 1 - s->coeffs[m].start;
332 nb_cqt_coeffs += s->coeffs[m].len;
333 if (!(s->coeffs[m].val = av_calloc(s->coeffs[m].len, sizeof(*s->coeffs[m].val))))
334 goto error;
335
336 for (x = start; x <= end; x++) {
337 int sign = (x & 1) ? (-1) : 1;
338 double y = 2.0 * M_PI * (x - center) * (1.0 / flen);
339 /* nuttall window */
340 double w = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
341 w *= sign * (1.0 / s->fft_len);
342 s->coeffs[m].val[x - s->coeffs[m].start] = w;
343 }
344
345 if (s->permute_coeffs)
346 s->permute_coeffs(s->coeffs[m].val, s->coeffs[m].len);
347 }
348
349 av_expr_free(expr);
350 av_log(s->ctx, AV_LOG_VERBOSE, "nb_cqt_coeffs = %d.\n", nb_cqt_coeffs);
351 return 0;
352
353error:
354 av_expr_free(expr);
355 if (s->coeffs)
356 for (k = 0; k < s->cqt_len; k++)
357 av_freep(&s->coeffs[k].val);
358 av_freep(&s->coeffs);
359 return ret;
360}
361
362static AVFrame *alloc_frame_empty(enum AVPixelFormat format, int w, int h)
363{
364 AVFrame *out;
365 out = av_frame_alloc();
366 if (!out)
367 return NULL;
368 out->format = format;
369 out->width = w;
370 out->height = h;
371 if (av_frame_get_buffer(out, 0) < 0) {
372 av_frame_free(&out);
373 return NULL;
374 }
375 if (format == AV_PIX_FMT_RGB24 || format == AV_PIX_FMT_RGBA) {
376 memset(out->data[0], 0, out->linesize[0] * h);
377 } else {
378 int hh = (format == AV_PIX_FMT_YUV420P || format == AV_PIX_FMT_YUVA420P) ? h / 2 : h;
379 memset(out->data[0], 16, out->linesize[0] * h);
380 memset(out->data[1], 128, out->linesize[1] * hh);
381 memset(out->data[2], 128, out->linesize[2] * hh);
382 if (out->data[3])
383 memset(out->data[3], 0, out->linesize[3] * h);
384 }
385 return out;
386}
387
388static enum AVPixelFormat convert_axis_pixel_format(enum AVPixelFormat format)
389{
390 switch (format) {
391 case AV_PIX_FMT_RGB24: format = AV_PIX_FMT_RGBA; break;
392 case AV_PIX_FMT_YUV444P:
393 case AV_PIX_FMT_YUV422P:
394 case AV_PIX_FMT_YUV420P: format = AV_PIX_FMT_YUVA444P; break;
395 }
396 return format;
397}
398
399static int init_axis_empty(ShowCQTContext *s)
400{
401 if (!(s->axis_frame = alloc_frame_empty(convert_axis_pixel_format(s->format), s->width, s->axis_h)))
402 return AVERROR(ENOMEM);
403 return 0;
404}
405
406static int init_axis_from_file(ShowCQTContext *s)
407{
408 AVFrame *tmp_frame;
409 int ret = ff_load_image(&tmp_frame, s->axisfile, s->ctx);
410 if (ret < 0)
411 return ret;
412
413 ret = AVERROR(ENOMEM);
414 if (!(s->axis_frame = av_frame_alloc()))
415 goto error;
416
417 ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
418 convert_axis_pixel_format(s->format),
419 tmp_frame->data, tmp_frame->linesize, tmp_frame->width, tmp_frame->height,
420 tmp_frame->format, s->ctx);
421 if (ret < 0) {
422 av_frame_free(&s->axis_frame);
423 goto error;
424 }
425
426 s->axis_frame->width = s->width;
427 s->axis_frame->height = s->axis_h;
428 s->axis_frame->format = convert_axis_pixel_format(s->format);
429
430 ret = 0;
431error:
432 av_frame_free(&tmp_frame);
433 return ret;
434}
435
436static double midi(void *p, double f)
437{
438 return log2(f/440.0) * 12.0 + 69.0;
439}
440
441static double r_func(void *p, double x)
442{
443 x = av_clipd(x, 0.0, 1.0);
444 return lrint(x*255.0) << 16;
445}
446
447static double g_func(void *p, double x)
448{
449 x = av_clipd(x, 0.0, 1.0);
450 return lrint(x*255.0) << 8;
451}
452
453static double b_func(void *p, double x)
454{
455 x = av_clipd(x, 0.0, 1.0);
456 return lrint(x*255.0);
457}
458
459static int init_axis_color(ShowCQTContext *s, AVFrame *tmp, int half)
460{
461 const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
462 const char *func_names[] = { "midi", "r", "g", "b", NULL };
463 double (*funcs[])(void *, double) = { midi, r_func, g_func, b_func };
464 AVExpr *expr = NULL;
465 double *freq = NULL;
466 int x, xs, y, ret;
467 int width = half ? 1920/2 : 1920, height = half ? 16 : 32;
468 int step = half ? 2 : 1;
469
470 if (s->basefreq != (double) BASEFREQ || s->endfreq != (double) ENDFREQ) {
471 av_log(s->ctx, AV_LOG_WARNING, "font axis rendering is not implemented in non-default frequency range,"
472 " please use axisfile option instead.\n");
473 return AVERROR(EINVAL);
474 }
475
476 if (s->cqt_len == 1920)
477 freq = s->freq;
478 else if (!(freq = create_freq_table(s->basefreq, s->endfreq, 1920)))
479 return AVERROR(ENOMEM);
480
481 if ((ret = av_expr_parse(&expr, s->fontcolor, var_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0) {
482 if (freq != s->freq)
483 av_freep(&freq);
484 return ret;
485 }
486
487 for (x = 0, xs = 0; x < width; x++, xs += step) {
488 double vars[] = { s->timeclamp, s->timeclamp, freq[xs], freq[xs], freq[xs] };
489 int color = (int) av_expr_eval(expr, vars, NULL);
490 uint8_t r = (color >> 16) & 0xFF, g = (color >> 8) & 0xFF, b = color & 0xFF;
491 uint8_t *data = tmp->data[0];
492 int linesize = tmp->linesize[0];
493 for (y = 0; y < height; y++) {
494 data[linesize * y + 4 * x] = r;
495 data[linesize * y + 4 * x + 1] = g;
496 data[linesize * y + 4 * x + 2] = b;
497 }
498 }
499
500 av_expr_free(expr);
501 if (freq != s->freq)
502 av_freep(&freq);
503 return 0;
504}
505
506static int render_freetype(ShowCQTContext *s, AVFrame *tmp, char *fontfile)
507{
508#if CONFIG_LIBFREETYPE
509 const char *str = "EF G A BC D ";
510 uint8_t *data = tmp->data[0];
511 int linesize = tmp->linesize[0];
512 FT_Library lib = NULL;
513 FT_Face face = NULL;
514 int font_width = 16, font_height = 32;
515 int font_repeat = font_width * 12;
516 int linear_hori_advance = font_width * 65536;
517 int non_monospace_warning = 0;
518 int x;
519
520 if (!fontfile)
521 return AVERROR(EINVAL);
522
523 if (FT_Init_FreeType(&lib))
524 goto fail;
525
526 if (FT_New_Face(lib, fontfile, 0, &face))
527 goto fail;
528
529 if (FT_Set_Char_Size(face, 16*64, 0, 0, 0))
530 goto fail;
531
532 if (FT_Load_Char(face, 'A', FT_LOAD_RENDER))
533 goto fail;
534
535 if (FT_Set_Char_Size(face, 16*64 * linear_hori_advance / face->glyph->linearHoriAdvance, 0, 0, 0))
536 goto fail;
537
538 for (x = 0; x < 12; x++) {
539 int sx, sy, rx, bx, by, dx, dy;
540
541 if (str[x] == ' ')
542 continue;
543
544 if (FT_Load_Char(face, str[x], FT_LOAD_RENDER))
545 goto fail;
546
547 if (face->glyph->advance.x != font_width*64 && !non_monospace_warning) {
548 av_log(s->ctx, AV_LOG_WARNING, "font is not monospace.\n");
549 non_monospace_warning = 1;
550 }
551
552 sy = font_height - 8 - face->glyph->bitmap_top;
553 for (rx = 0; rx < 10; rx++) {
554 sx = rx * font_repeat + x * font_width + face->glyph->bitmap_left;
555 for (by = 0; by < face->glyph->bitmap.rows; by++) {
556 dy = by + sy;
557 if (dy < 0)
558 continue;
559 if (dy >= font_height)
560 break;
561
562 for (bx = 0; bx < face->glyph->bitmap.width; bx++) {
563 dx = bx + sx;
564 if (dx < 0)
565 continue;
566 if (dx >= 1920)
567 break;
568 data[dy*linesize+4*dx+3] = face->glyph->bitmap.buffer[by*face->glyph->bitmap.width+bx];
569 }
570 }
571 }
572 }
573
574 FT_Done_Face(face);
575 FT_Done_FreeType(lib);
576 return 0;
577
578fail:
579 av_log(s->ctx, AV_LOG_WARNING, "error while loading freetype font.\n");
580 FT_Done_Face(face);
581 FT_Done_FreeType(lib);
582 return AVERROR(EINVAL);
583#else
584 if (fontfile)
585 av_log(s->ctx, AV_LOG_WARNING, "freetype is not available, ignoring fontfile option.\n");
586 return AVERROR(EINVAL);
587#endif
588}
589
590static int render_fontconfig(ShowCQTContext *s, AVFrame *tmp, char* font)
591{
592#if CONFIG_LIBFONTCONFIG
593 FcConfig *fontconfig;
594 FcPattern *pat, *best;
595 FcResult result = FcResultMatch;
596 char *filename;
597 int i, ret;
598
599 if (!font)
600 return AVERROR(EINVAL);
601
602 for (i = 0; font[i]; i++) {
603 if (font[i] == '|')
604 font[i] = ':';
605 }
606
607 if (!(fontconfig = FcInitLoadConfigAndFonts())) {
608 av_log(s->ctx, AV_LOG_ERROR, "impossible to init fontconfig.\n");
609 return AVERROR_UNKNOWN;
610 }
611
612 if (!(pat = FcNameParse((uint8_t *)font))) {
613 av_log(s->ctx, AV_LOG_ERROR, "could not parse fontconfig pat.\n");
614 FcConfigDestroy(fontconfig);
615 return AVERROR(EINVAL);
616 }
617
618 FcDefaultSubstitute(pat);
619
620 if (!FcConfigSubstitute(fontconfig, pat, FcMatchPattern)) {
621 av_log(s->ctx, AV_LOG_ERROR, "could not substitute fontconfig options.\n");
622 FcPatternDestroy(pat);
623 FcConfigDestroy(fontconfig);
624 return AVERROR(ENOMEM);
625 }
626
627 best = FcFontMatch(fontconfig, pat, &result);
628 FcPatternDestroy(pat);
629
630 ret = AVERROR(EINVAL);
631 if (!best || result != FcResultMatch) {
632 av_log(s->ctx, AV_LOG_ERROR, "cannot find a valid font for %s.\n", font);
633 goto fail;
634 }
635
636 if (FcPatternGetString(best, FC_FILE, 0, (FcChar8 **)&filename) != FcResultMatch) {
637 av_log(s->ctx, AV_LOG_ERROR, "no file path for %s\n", font);
638 goto fail;
639 }
640
641 ret = render_freetype(s, tmp, filename);
642
643fail:
644 FcPatternDestroy(best);
645 FcConfigDestroy(fontconfig);
646 return ret;
647#else
648 if (font)
649 av_log(s->ctx, AV_LOG_WARNING, "fontconfig is not available, ignoring font option.\n");
650 return AVERROR(EINVAL);
651#endif
652}
653
654static int render_default_font(AVFrame *tmp)
655{
656 const char *str = "EF G A BC D ";
657 const uint8_t *vga16_font = avpriv_vga16_font_get();
658 int x, u, v, mask;
659 uint8_t *data = tmp->data[0];
660 int linesize = tmp->linesize[0];
661 int width = 1920/2, height = 16;
662
663 for (x = 0; x < width; x += width/10) {
664 uint8_t *startptr = data + 4 * x;
665 for (u = 0; u < 12; u++) {
666 for (v = 0; v < height; v++) {
667 uint8_t *p = startptr + v * linesize + height/2 * 4 * u;
668 for (mask = 0x80; mask; mask >>= 1, p += 4) {
669 if (mask & vga16_font[str[u] * 16 + v])
670 p[3] = 255;
671 else
672 p[3] = 0;
673 }
674 }
675 }
676 }
677
678 return 0;
679}
680
681static int init_axis_from_font(ShowCQTContext *s)
682{
683 AVFrame *tmp = NULL;
684 int ret = AVERROR(ENOMEM);
685 int width = 1920, height = 32;
686 int default_font = 0;
687
688 if (!(tmp = alloc_frame_empty(AV_PIX_FMT_RGBA, width, height)))
689 goto fail;
690
691 if (!(s->axis_frame = av_frame_alloc()))
692 goto fail;
693
694 if (render_freetype(s, tmp, s->fontfile) < 0 &&
695 render_fontconfig(s, tmp, s->font) < 0 &&
696 (default_font = 1, ret = render_default_font(tmp)) < 0)
697 goto fail;
698
699 if (default_font)
700 width /= 2, height /= 2;
701
702 if ((ret = init_axis_color(s, tmp, default_font)) < 0)
703 goto fail;
704
705 if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
706 convert_axis_pixel_format(s->format), tmp->data, tmp->linesize,
707 width, height, AV_PIX_FMT_RGBA, s->ctx)) < 0)
708 goto fail;
709
710 av_frame_free(&tmp);
711 s->axis_frame->width = s->width;
712 s->axis_frame->height = s->axis_h;
713 s->axis_frame->format = convert_axis_pixel_format(s->format);
714 return 0;
715
716fail:
717 av_frame_free(&tmp);
718 av_frame_free(&s->axis_frame);
719 return ret;
720}
721
722static float calculate_gamma(float v, float g)
723{
724 if (g == 1.0f)
725 return v;
726 if (g == 2.0f)
727 return sqrtf(v);
728 if (g == 3.0f)
729 return cbrtf(v);
730 if (g == 4.0f)
731 return sqrtf(sqrtf(v));
732 return expf(logf(v) / g);
733}
734
735static void rgb_from_cqt(ColorFloat *c, const AVComplexFloat *v, float g, int len, float cscheme[6])
736{
737 int x;
738 for (x = 0; x < len; x++) {
739 c[x].rgb.r = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), g);
740 c[x].rgb.g = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), g);
741 c[x].rgb.b = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), g);
742 }
743}
744
745static void yuv_from_cqt(ColorFloat *c, const AVComplexFloat *v, float gamma, int len, float cm[3][3], float cscheme[6])
746{
747 int x;
748 for (x = 0; x < len; x++) {
749 float r, g, b;
750 r = calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), gamma);
751 g = calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), gamma);
752 b = calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), gamma);
753 c[x].yuv.y = cm[0][0] * r + cm[0][1] * g + cm[0][2] * b;
754 c[x].yuv.u = cm[1][0] * r + cm[1][1] * g + cm[1][2] * b;
755 c[x].yuv.v = cm[2][0] * r + cm[2][1] * g + cm[2][2] * b;
756 }
757}
758
759static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
760 const ColorFloat *c, int bar_h, float bar_t)
761{
762 int x, y, w = out->width;
763 float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
764 uint8_t *v = out->data[0], *lp;
765 int ls = out->linesize[0];
766
767 for (y = 0; y < bar_h; y++) {
768 ht = (bar_h - y) * rcp_bar_h;
769 lp = v + y * ls;
770 for (x = 0; x < w; x++) {
771 if (h[x] <= ht) {
772 *lp++ = 0;
773 *lp++ = 0;
774 *lp++ = 0;
775 } else {
776 mul = (h[x] - ht) * rcp_h[x];
777 mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f;
778 *lp++ = lrintf(mul * c[x].rgb.r);
779 *lp++ = lrintf(mul * c[x].rgb.g);
780 *lp++ = lrintf(mul * c[x].rgb.b);
781 }
782 }
783 }
784}
785
786#define DRAW_BAR_WITH_CHROMA(x) \
787do { \
788 if (h[x] <= ht) { \
789 *lpy++ = 16; \
790 *lpu++ = 128; \
791 *lpv++ = 128; \
792 } else { \
793 mul = (h[x] - ht) * rcp_h[x]; \
794 mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
795 *lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
796 *lpu++ = lrintf(mul * c[x].yuv.u + 128.0f); \
797 *lpv++ = lrintf(mul * c[x].yuv.v + 128.0f); \
798 } \
799} while (0)
800
801#define DRAW_BAR_WITHOUT_CHROMA(x) \
802do { \
803 if (h[x] <= ht) { \
804 *lpy++ = 16; \
805 } else { \
806 mul = (h[x] - ht) * rcp_h[x]; \
807 mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
808 *lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
809 } \
810} while (0)
811
812static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h,
813 const ColorFloat *c, int bar_h, float bar_t)
814{
815 int x, y, yh, w = out->width;
816 float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
817 uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
818 uint8_t *lpy, *lpu, *lpv;
819 int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
820 int fmt = out->format;
821
822 for (y = 0; y < bar_h; y += 2) {
823 yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
824 ht = (bar_h - y) * rcp_bar_h;
825 lpy = vy + y * lsy;
826 lpu = vu + yh * lsu;
827 lpv = vv + yh * lsv;
828 if (fmt == AV_PIX_FMT_YUV444P) {
829 for (x = 0; x < w; x += 2) {
830 DRAW_BAR_WITH_CHROMA(x);
831 DRAW_BAR_WITH_CHROMA(x+1);
832 }
833 } else {
834 for (x = 0; x < w; x += 2) {
835 DRAW_BAR_WITH_CHROMA(x);
836 DRAW_BAR_WITHOUT_CHROMA(x+1);
837 }
838 }
839
840 ht = (bar_h - (y+1)) * rcp_bar_h;
841 lpy = vy + (y+1) * lsy;
842 lpu = vu + (y+1) * lsu;
843 lpv = vv + (y+1) * lsv;
844 if (fmt == AV_PIX_FMT_YUV444P) {
845 for (x = 0; x < w; x += 2) {
846 DRAW_BAR_WITH_CHROMA(x);
847 DRAW_BAR_WITH_CHROMA(x+1);
848 }
849 } else if (fmt == AV_PIX_FMT_YUV422P) {
850 for (x = 0; x < w; x += 2) {
851 DRAW_BAR_WITH_CHROMA(x);
852 DRAW_BAR_WITHOUT_CHROMA(x+1);
853 }
854 } else {
855 for (x = 0; x < w; x += 2) {
856 DRAW_BAR_WITHOUT_CHROMA(x);
857 DRAW_BAR_WITHOUT_CHROMA(x+1);
858 }
859 }
860 }
861}
862
863static void draw_axis_rgb(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
864{
865 int x, y, w = axis->width, h = axis->height;
866 float a, rcp_255 = 1.0f / 255.0f;
867 uint8_t *lp, *lpa;
868
869 for (y = 0; y < h; y++) {
870 lp = out->data[0] + (off + y) * out->linesize[0];
871 lpa = axis->data[0] + y * axis->linesize[0];
872 for (x = 0; x < w; x++) {
873 if (!lpa[3]) {
874 *lp++ = lrintf(c[x].rgb.r);
875 *lp++ = lrintf(c[x].rgb.g);
876 *lp++ = lrintf(c[x].rgb.b);
877 } else if (lpa[3] == 255) {
878 *lp++ = lpa[0];
879 *lp++ = lpa[1];
880 *lp++ = lpa[2];
881 } else {
882 a = rcp_255 * lpa[3];
883 *lp++ = lrintf(a * lpa[0] + (1.0f - a) * c[x].rgb.r);
884 *lp++ = lrintf(a * lpa[1] + (1.0f - a) * c[x].rgb.g);
885 *lp++ = lrintf(a * lpa[2] + (1.0f - a) * c[x].rgb.b);
886 }
887 lpa += 4;
888 }
889 }
890}
891
892#define BLEND_WITH_CHROMA(c) \
893do { \
894 if (!*lpaa) { \
895 *lpy = lrintf(c.yuv.y + 16.0f); \
896 *lpu = lrintf(c.yuv.u + 128.0f); \
897 *lpv = lrintf(c.yuv.v + 128.0f); \
898 } else if (255 == *lpaa) { \
899 *lpy = *lpay; \
900 *lpu = *lpau; \
901 *lpv = *lpav; \
902 } else { \
903 float a = (1.0f/255.0f) * (*lpaa); \
904 *lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
905 *lpu = lrintf(a * (*lpau) + (1.0f - a) * (c.yuv.u + 128.0f)); \
906 *lpv = lrintf(a * (*lpav) + (1.0f - a) * (c.yuv.v + 128.0f)); \
907 } \
908 lpy++; lpu++; lpv++; \
909 lpay++; lpau++; lpav++; lpaa++; \
910} while (0)
911
912#define BLEND_WITHOUT_CHROMA(c, alpha_inc) \
913do { \
914 if (!*lpaa) { \
915 *lpy = lrintf(c.yuv.y + 16.0f); \
916 } else if (255 == *lpaa) { \
917 *lpy = *lpay; \
918 } else { \
919 float a = (1.0f/255.0f) * (*lpaa); \
920 *lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
921 } \
922 lpy++; \
923 lpay++; lpaa += alpha_inc; \
924} while (0)
925
926#define BLEND_CHROMA2(c) \
927do { \
928 if (!lpaa[0] && !lpaa[1]) { \
929 *lpu = lrintf(c.yuv.u + 128.0f); \
930 *lpv = lrintf(c.yuv.v + 128.0f); \
931 } else if (255 == lpaa[0] && 255 == lpaa[1]) { \
932 *lpu = *lpau; *lpv = *lpav; \
933 } else { \
934 float a0 = (0.5f/255.0f) * lpaa[0]; \
935 float a1 = (0.5f/255.0f) * lpaa[1]; \
936 float b = 1.0f - a0 - a1; \
937 *lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + b * (c.yuv.u + 128.0f)); \
938 *lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + b * (c.yuv.v + 128.0f)); \
939 } \
940 lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
941} while (0)
942
943#define BLEND_CHROMA2x2(c) \
944do { \
945 if (!lpaa[0] && !lpaa[1] && !lpaa[lsaa] && !lpaa[lsaa+1]) { \
946 *lpu = lrintf(c.yuv.u + 128.0f); \
947 *lpv = lrintf(c.yuv.v + 128.0f); \
948 } else if (255 == lpaa[0] && 255 == lpaa[1] && \
949 255 == lpaa[lsaa] && 255 == lpaa[lsaa+1]) { \
950 *lpu = *lpau; *lpv = *lpav; \
951 } else { \
952 float a0 = (0.25f/255.0f) * lpaa[0]; \
953 float a1 = (0.25f/255.0f) * lpaa[1]; \
954 float a2 = (0.25f/255.0f) * lpaa[lsaa]; \
955 float a3 = (0.25f/255.0f) * lpaa[lsaa+1]; \
956 float b = 1.0f - a0 - a1 - a2 - a3; \
957 *lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + a2 * lpau[lsau] + a3 * lpau[lsau+1] \
958 + b * (c.yuv.u + 128.0f)); \
959 *lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + a2 * lpav[lsav] + a3 * lpav[lsav+1] \
960 + b * (c.yuv.v + 128.0f)); \
961 } \
962 lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
963} while (0)
964
965static void draw_axis_yuv(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
966{
967 int fmt = out->format, x, y, yh, w = axis->width, h = axis->height;
968 int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
969 uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
970 uint8_t *vay = axis->data[0], *vau = axis->data[1], *vav = axis->data[2], *vaa = axis->data[3];
971 int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
972 int lsay = axis->linesize[0], lsau = axis->linesize[1], lsav = axis->linesize[2], lsaa = axis->linesize[3];
973 uint8_t *lpy, *lpu, *lpv, *lpay, *lpau, *lpav, *lpaa;
974
975 for (y = 0; y < h; y += 2) {
976 yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
977 lpy = vy + (off + y) * lsy;
978 lpu = vu + (offh + yh) * lsu;
979 lpv = vv + (offh + yh) * lsv;
980 lpay = vay + y * lsay;
981 lpau = vau + y * lsau;
982 lpav = vav + y * lsav;
983 lpaa = vaa + y * lsaa;
984 if (fmt == AV_PIX_FMT_YUV444P) {
985 for (x = 0; x < w; x += 2) {
986 BLEND_WITH_CHROMA(c[x]);
987 BLEND_WITH_CHROMA(c[x+1]);
988 }
989 } else if (fmt == AV_PIX_FMT_YUV422P) {
990 for (x = 0; x < w; x += 2) {
991 BLEND_WITHOUT_CHROMA(c[x], 0);
992 BLEND_CHROMA2(c[x]);
993 BLEND_WITHOUT_CHROMA(c[x+1], 1);
994 }
995 } else {
996 for (x = 0; x < w; x += 2) {
997 BLEND_WITHOUT_CHROMA(c[x], 0);
998 BLEND_CHROMA2x2(c[x]);
999 BLEND_WITHOUT_CHROMA(c[x+1], 1);
1000 }
1001 }
1002
1003 lpy = vy + (off + y + 1) * lsy;
1004 lpu = vu + (off + y + 1) * lsu;
1005 lpv = vv + (off + y + 1) * lsv;
1006 lpay = vay + (y + 1) * lsay;
1007 lpau = vau + (y + 1) * lsau;
1008 lpav = vav + (y + 1) * lsav;
1009 lpaa = vaa + (y + 1) * lsaa;
1010 if (fmt == AV_PIX_FMT_YUV444P) {
1011 for (x = 0; x < w; x += 2) {
1012 BLEND_WITH_CHROMA(c[x]);
1013 BLEND_WITH_CHROMA(c[x+1]);
1014 }
1015 } else if (fmt == AV_PIX_FMT_YUV422P) {
1016 for (x = 0; x < w; x += 2) {
1017 BLEND_WITHOUT_CHROMA(c[x], 0);
1018 BLEND_CHROMA2(c[x]);
1019 BLEND_WITHOUT_CHROMA(c[x+1], 1);
1020 }
1021 } else {
1022 for (x = 0; x < w; x += 2) {
1023 BLEND_WITHOUT_CHROMA(c[x], 1);
1024 BLEND_WITHOUT_CHROMA(c[x+1], 1);
1025 }
1026 }
1027 }
1028}
1029
1030static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx)
1031{
1032 int fmt = out->format, h = sono->height;
1033 int nb_planes = (fmt == AV_PIX_FMT_RGB24) ? 1 : 3;
1034 int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
1035 int inc = (fmt == AV_PIX_FMT_YUV420P) ? 2 : 1;
1036 ptrdiff_t ls;
1037 int i, y, yh;
1038
1039 ls = FFABS(FFMIN(out->linesize[0], sono->linesize[0]));
1040 for (y = 0; y < h; y++) {
1041 memcpy(out->data[0] + (off + y) * out->linesize[0],
1042 sono->data[0] + (idx + y) % h * sono->linesize[0], ls);
1043 }
1044
1045 for (i = 1; i < nb_planes; i++) {
1046 ls = FFABS(FFMIN(out->linesize[i], sono->linesize[i]));
1047 for (y = 0; y < h; y += inc) {
1048 yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
1049 memcpy(out->data[i] + (offh + yh) * out->linesize[i],
1050 sono->data[i] + (idx + y) % h * sono->linesize[i], ls);
1051 }
1052 }
1053}
1054
1055static void update_sono_rgb(AVFrame *sono, const ColorFloat *c, int idx)
1056{
1057 int x, w = sono->width;
1058 uint8_t *lp = sono->data[0] + idx * sono->linesize[0];
1059
1060 for (x = 0; x < w; x++) {
1061 *lp++ = lrintf(c[x].rgb.r);
1062 *lp++ = lrintf(c[x].rgb.g);
1063 *lp++ = lrintf(c[x].rgb.b);
1064 }
1065}
1066
1067static void update_sono_yuv(AVFrame *sono, const ColorFloat *c, int idx)
1068{
1069 int x, fmt = sono->format, w = sono->width;
1070 uint8_t *lpy = sono->data[0] + idx * sono->linesize[0];
1071 uint8_t *lpu = sono->data[1] + idx * sono->linesize[1];
1072 uint8_t *lpv = sono->data[2] + idx * sono->linesize[2];
1073
1074 for (x = 0; x < w; x += 2) {
1075 *lpy++ = lrintf(c[x].yuv.y + 16.0f);
1076 *lpu++ = lrintf(c[x].yuv.u + 128.0f);
1077 *lpv++ = lrintf(c[x].yuv.v + 128.0f);
1078 *lpy++ = lrintf(c[x+1].yuv.y + 16.0f);
1079 if (fmt == AV_PIX_FMT_YUV444P) {
1080 *lpu++ = lrintf(c[x+1].yuv.u + 128.0f);
1081 *lpv++ = lrintf(c[x+1].yuv.v + 128.0f);
1082 }
1083 }
1084}
1085
1086static void process_cqt(ShowCQTContext *s)
1087{
1088 int x, i;
1089 if (!s->sono_count) {
1090 for (x = 0; x < s->cqt_len; x++) {
1091 s->h_buf[x] = s->bar_v_buf[x] * 0.5f * (s->cqt_result[x].re + s->cqt_result[x].im);
1092 }
1093 if (s->fcount > 1) {
1094 float rcp_fcount = 1.0f / s->fcount;
1095 for (x = 0; x < s->width; x++) {
1096 float h = 0.0f;
1097 for (i = 0; i < s->fcount; i++)
1098 h += s->h_buf[s->fcount * x + i];
1099 s->h_buf[x] = rcp_fcount * h;
1100 }
1101 }
1102 for (x = 0; x < s->width; x++) {
1103 s->h_buf[x] = calculate_gamma(s->h_buf[x], s->bar_g);
1104 s->rcp_h_buf[x] = 1.0f / (s->h_buf[x] + 0.0001f);
1105 }
1106 }
1107
1108 for (x = 0; x < s->cqt_len; x++) {
1109 s->cqt_result[x].re *= s->sono_v_buf[x];
1110 s->cqt_result[x].im *= s->sono_v_buf[x];
1111 }
1112
1113 if (s->fcount > 1) {
1114 float rcp_fcount = 1.0f / s->fcount;
1115 for (x = 0; x < s->width; x++) {
1116 AVComplexFloat result = {0.0f, 0.0f};
1117 for (i = 0; i < s->fcount; i++) {
1118 result.re += s->cqt_result[s->fcount * x + i].re;
1119 result.im += s->cqt_result[s->fcount * x + i].im;
1120 }
1121 s->cqt_result[x].re = rcp_fcount * result.re;
1122 s->cqt_result[x].im = rcp_fcount * result.im;
1123 }
1124 }
1125
1126 if (s->format == AV_PIX_FMT_RGB24)
1127 rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cscheme_v);
1128 else
1129 yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cmatrix, s->cscheme_v);
1130}
1131
1132static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
1133{
1134 AVFilterLink *outlink = ctx->outputs[0];
1135 ShowCQTContext *s = ctx->priv;
1136 int64_t last_time, cur_time;
1137
1138#define UPDATE_TIME(t) \
1139 cur_time = av_gettime_relative(); \
1140 t += cur_time - last_time; \
1141 last_time = cur_time
1142
1143 last_time = av_gettime_relative();
1144
1145 memcpy(s->fft_input, s->fft_data, s->fft_len * sizeof(*s->fft_data));
1146 if (s->attack_data) {
1147 int k;
1148 for (k = 0; k < s->remaining_fill_max; k++) {
1149 s->fft_input[s->fft_len/2+k].re *= s->attack_data[k];
1150 s->fft_input[s->fft_len/2+k].im *= s->attack_data[k];
1151 }
1152 }
1153
1154 s->tx_fn(s->fft_ctx, s->fft_result, s->fft_input, sizeof(AVComplexFloat));
1155 UPDATE_TIME(s->fft_time);
1156
1157 s->cqt_calc(s->cqt_result, s->fft_result, s->coeffs, s->cqt_len, s->fft_len);
1158 UPDATE_TIME(s->cqt_time);
1159
1160 process_cqt(s);
1161 UPDATE_TIME(s->process_cqt_time);
1162
1163 if (s->sono_h) {
1164 s->update_sono(s->sono_frame, s->c_buf, s->sono_idx);
1165 UPDATE_TIME(s->update_sono_time);
1166 }
1167
1168 if (!s->sono_count) {
1169 AVFrame *out = *frameout = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1170 if (!out)
1171 return AVERROR(ENOMEM);
1172 out->sample_aspect_ratio = av_make_q(1, 1);
1173 out->color_range = AVCOL_RANGE_MPEG;
1174 out->colorspace = s->csp;
1175 UPDATE_TIME(s->alloc_time);
1176
1177 if (s->bar_h) {
1178 s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h, s->bar_t);
1179 UPDATE_TIME(s->bar_time);
1180 }
1181
1182 if (s->axis_h) {
1183 s->draw_axis(out, s->axis_frame, s->c_buf, s->bar_h);
1184 UPDATE_TIME(s->axis_time);
1185 }
1186
1187 if (s->sono_h) {
1188 s->draw_sono(out, s->sono_frame, s->bar_h + s->axis_h, s->sono_idx);
1189 UPDATE_TIME(s->sono_time);
1190 }
1191 }
1192 s->sono_count = (s->sono_count + 1) % s->count;
1193 if (s->sono_h)
1194 s->sono_idx = (s->sono_idx + s->sono_h - 1) % s->sono_h;
1195 return 0;
1196}
1197
1198static void init_colormatrix(ShowCQTContext *s)
1199{
1200 double kr, kg, kb;
1201
1202 /* from vf_colorspace.c */
1203 switch (s->csp) {
1204 default:
1205 av_log(s->ctx, AV_LOG_WARNING, "unsupported colorspace, setting it to unspecified.\n");
1206 s->csp = AVCOL_SPC_UNSPECIFIED;
1207 av_fallthrough;
1208 case AVCOL_SPC_UNSPECIFIED:
1209 case AVCOL_SPC_BT470BG:
1210 case AVCOL_SPC_SMPTE170M:
1211 kr = 0.299; kb = 0.114; break;
1212 case AVCOL_SPC_BT709:
1213 kr = 0.2126; kb = 0.0722; break;
1214 case AVCOL_SPC_FCC:
1215 kr = 0.30; kb = 0.11; break;
1216 case AVCOL_SPC_SMPTE240M:
1217 kr = 0.212; kb = 0.087; break;
1218 case AVCOL_SPC_BT2020_NCL:
1219 kr = 0.2627; kb = 0.0593; break;
1220 }
1221
1222 kg = 1.0 - kr - kb;
1223 s->cmatrix[0][0] = 219.0 * kr;
1224 s->cmatrix[0][1] = 219.0 * kg;
1225 s->cmatrix[0][2] = 219.0 * kb;
1226 s->cmatrix[1][0] = -112.0 * kr / (1.0 - kb);
1227 s->cmatrix[1][1] = -112.0 * kg / (1.0 - kb);
1228 s->cmatrix[1][2] = 112.0;
1229 s->cmatrix[2][0] = 112.0;
1230 s->cmatrix[2][1] = -112.0 * kg / (1.0 - kr);
1231 s->cmatrix[2][2] = -112.0 * kb / (1.0 - kr);
1232}
1233
1234static int init_cscheme(ShowCQTContext *s)
1235{
1236 char tail[2];
1237 int k;
1238
1239 if (sscanf(s->cscheme, " %f | %f | %f | %f | %f | %f %1s", &s->cscheme_v[0],
1240 &s->cscheme_v[1], &s->cscheme_v[2], &s->cscheme_v[3], &s->cscheme_v[4],
1241 &s->cscheme_v[5], tail) != 6)
1242 goto fail;
1243
1244 for (k = 0; k < 6; k++)
1245 if (isnan(s->cscheme_v[k]) || s->cscheme_v[k] < 0.0f || s->cscheme_v[k] > 1.0f)
1246 goto fail;
1247
1248 return 0;
1249
1250fail:
1251 av_log(s->ctx, AV_LOG_ERROR, "invalid cscheme.\n");
1252 return AVERROR(EINVAL);
1253}
1254
1255/* main filter control */
1256static av_cold int init(AVFilterContext *ctx)
1257{
1258 ShowCQTContext *s = ctx->priv;
1259 s->ctx = ctx;
1260
1261 if (!s->fullhd) {
1262 av_log(ctx, AV_LOG_WARNING, "fullhd option is deprecated, use size/s option instead.\n");
1263 if (s->width != 1920 || s->height != 1080) {
1264 av_log(ctx, AV_LOG_ERROR, "fullhd set to 0 but with custom dimension.\n");
1265 return AVERROR(EINVAL);
1266 }
1267 s->width /= 2;
1268 s->height /= 2;
1269 s->fullhd = 1;
1270 }
1271
1272 if (s->axis_h < 0) {
1273 s->axis_h = s->width / 60;
1274 if (s->axis_h & 1)
1275 s->axis_h++;
1276 if (s->bar_h >= 0 && s->sono_h >= 0)
1277 s->axis_h = s->height - s->bar_h - s->sono_h;
1278 if (s->bar_h >= 0 && s->sono_h < 0)
1279 s->axis_h = FFMIN(s->axis_h, s->height - s->bar_h);
1280 if (s->bar_h < 0 && s->sono_h >= 0)
1281 s->axis_h = FFMIN(s->axis_h, s->height - s->sono_h);
1282 }
1283
1284 if (s->bar_h < 0) {
1285 s->bar_h = (s->height - s->axis_h) / 2;
1286 if (s->bar_h & 1)
1287 s->bar_h--;
1288 if (s->sono_h >= 0)
1289 s->bar_h = s->height - s->sono_h - s->axis_h;
1290 }
1291
1292 if (s->sono_h < 0)
1293 s->sono_h = s->height - s->axis_h - s->bar_h;
1294
1295 if ((s->width & 1) || (s->height & 1) || (s->bar_h & 1) || (s->axis_h & 1) || (s->sono_h & 1) ||
1296 (s->bar_h < 0) || (s->axis_h < 0) || (s->sono_h < 0) || (s->bar_h > s->height) ||
1297 (s->axis_h > s->height) || (s->sono_h > s->height) || (s->bar_h + s->axis_h + s->sono_h != s->height)) {
1298 av_log(ctx, AV_LOG_ERROR, "invalid dimension.\n");
1299 return AVERROR(EINVAL);
1300 }
1301
1302 if (!s->fcount) {
1303 do {
1304 s->fcount++;
1305 } while(s->fcount * s->width < 1920 && s->fcount < 10);
1306 }
1307
1308 init_colormatrix(s);
1309
1310 return init_cscheme(s);
1311}
1312
1313static av_cold void uninit(AVFilterContext *ctx)
1314{
1315 common_uninit(ctx->priv);
1316}
1317
1318static int query_formats(const AVFilterContext *ctx,
1319 AVFilterFormatsConfig **cfg_in,
1320 AVFilterFormatsConfig **cfg_out)
1321{
1322 AVFilterFormats *formats = NULL;
1323 static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_NONE };
1324 static const enum AVPixelFormat pix_fmts[] = {
1325 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
1326 AV_PIX_FMT_YUV444P, AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
1327 };
1328 static const AVChannelLayout channel_layouts[] = { AV_CHANNEL_LAYOUT_STEREO,
1329 AV_CHANNEL_LAYOUT_STEREO_DOWNMIX, { 0 } };
1330 int ret;
1331
1332 /* set input audio formats */
1333 formats = ff_make_sample_format_list(sample_fmts);
1334 if ((ret = ff_formats_ref(formats, &cfg_in[0]->formats)) < 0)
1335 return ret;
1336
1337 ret = ff_set_common_channel_layouts_from_list2(ctx, cfg_in, cfg_out, channel_layouts);
1338 if (ret < 0)
1339 return ret;
1340
1341 /* set output video format */
1342 formats = ff_make_pixel_format_list(pix_fmts);
1343 if ((ret = ff_formats_ref(formats, &cfg_out[0]->formats)) < 0)
1344 return ret;
1345
1346 return 0;
1347}
1348
1349static int config_output(AVFilterLink *outlink)
1350{
1351 FilterLink *l = ff_filter_link(outlink);
1352 AVFilterContext *ctx = outlink->src;
1353 AVFilterLink *inlink = ctx->inputs[0];
1354 ShowCQTContext *s = ctx->priv;
1355 float scale = 1.f;
1356 int ret;
1357
1358 common_uninit(s);
1359
1360 outlink->w = s->width;
1361 outlink->h = s->height;
1362 s->format = outlink->format;
1363 outlink->sample_aspect_ratio = av_make_q(1, 1);
1364 l->frame_rate = s->rate;
1365 outlink->time_base = av_inv_q(s->rate);
1366 av_log(ctx, AV_LOG_VERBOSE, "video: %dx%d %s %d/%d fps, bar_h = %d, axis_h = %d, sono_h = %d.\n",
1367 s->width, s->height, av_get_pix_fmt_name(s->format), s->rate.num, s->rate.den,
1368 s->bar_h, s->axis_h, s->sono_h);
1369
1370 s->cqt_len = s->width * s->fcount;
1371 if (!(s->freq = create_freq_table(s->basefreq, s->endfreq, s->cqt_len)))
1372 return AVERROR(ENOMEM);
1373
1374 if ((ret = init_volume(s)) < 0)
1375 return ret;
1376
1377 s->fft_bits = FFMAX(ceil(log2(inlink->sample_rate * s->timeclamp)), 4);
1378 s->fft_len = 1 << s->fft_bits;
1379 av_log(ctx, AV_LOG_VERBOSE, "fft_len = %d, cqt_len = %d.\n", s->fft_len, s->cqt_len);
1380
1381 ret = av_tx_init(&s->fft_ctx, &s->tx_fn, AV_TX_FLOAT_FFT, 0, s->fft_len, &scale, 0);
1382 s->fft_data = av_calloc(s->fft_len, sizeof(*s->fft_data));
1383 s->fft_input = av_calloc(FFALIGN(s->fft_len + 64, 256), sizeof(*s->fft_input));
1384 s->fft_result = av_calloc(FFALIGN(s->fft_len + 64, 256), sizeof(*s->fft_result));
1385 s->cqt_result = av_malloc_array(s->cqt_len, sizeof(*s->cqt_result));
1386 if (!s->fft_ctx || !s->fft_data || !s->fft_result || !s->cqt_result)
1387 return AVERROR(ENOMEM);
1388
1389 s->remaining_fill_max = s->fft_len / 2;
1390 if (s->attack > 0.0) {
1391 int k;
1392
1393 s->remaining_fill_max = FFMIN(s->remaining_fill_max, ceil(inlink->sample_rate * s->attack));
1394 s->attack_data = av_malloc_array(s->remaining_fill_max, sizeof(*s->attack_data));
1395 if (!s->attack_data)
1396 return AVERROR(ENOMEM);
1397
1398 for (k = 0; k < s->remaining_fill_max; k++) {
1399 double y = M_PI * k / (inlink->sample_rate * s->attack);
1400 s->attack_data[k] = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
1401 }
1402 }
1403
1404 s->cqt_align = 1;
1405 s->cqt_calc = cqt_calc;
1406 s->permute_coeffs = NULL;
1407 s->draw_sono = draw_sono;
1408 if (s->format == AV_PIX_FMT_RGB24) {
1409 s->draw_bar = draw_bar_rgb;
1410 s->draw_axis = draw_axis_rgb;
1411 s->update_sono = update_sono_rgb;
1412 } else {
1413 s->draw_bar = draw_bar_yuv;
1414 s->draw_axis = draw_axis_yuv;
1415 s->update_sono = update_sono_yuv;
1416 }
1417
1418#if ARCH_X86 && HAVE_X86ASM
1419 ff_showcqt_init_x86(s);
1420#endif
1421
1422 if ((ret = init_cqt(s)) < 0)
1423 return ret;
1424
1425 if (s->axis_h) {
1426 if (!s->axis) {
1427 if ((ret = init_axis_empty(s)) < 0)
1428 return ret;
1429 } else if (s->axisfile) {
1430 if (init_axis_from_file(s) < 0) {
1431 av_log(ctx, AV_LOG_WARNING, "loading axis image failed, fallback to font rendering.\n");
1432 if (init_axis_from_font(s) < 0) {
1433 av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1434 if ((ret = init_axis_empty(s)) < 0)
1435 return ret;
1436 }
1437 }
1438 } else {
1439 if (init_axis_from_font(s) < 0) {
1440 av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1441 if ((ret = init_axis_empty(s)) < 0)
1442 return ret;
1443 }
1444 }
1445 }
1446
1447 if (s->sono_h) {
1448 s->sono_frame = alloc_frame_empty((outlink->format == AV_PIX_FMT_YUV420P) ?
1449 AV_PIX_FMT_YUV422P : outlink->format, s->width, s->sono_h);
1450 if (!s->sono_frame)
1451 return AVERROR(ENOMEM);
1452 }
1453
1454 s->h_buf = av_malloc_array(s->cqt_len, sizeof (*s->h_buf));
1455 s->rcp_h_buf = av_malloc_array(s->width, sizeof(*s->rcp_h_buf));
1456 s->c_buf = av_malloc_array(s->width, sizeof(*s->c_buf));
1457 if (!s->h_buf || !s->rcp_h_buf || !s->c_buf)
1458 return AVERROR(ENOMEM);
1459
1460 s->sono_count = 0;
1461 s->next_pts = 0;
1462 s->sono_idx = 0;
1463 s->remaining_fill = s->remaining_fill_max;
1464 s->remaining_frac = 0;
1465 s->step_frac = av_div_q(av_make_q(inlink->sample_rate, s->count) , s->rate);
1466 s->step = (int)(s->step_frac.num / s->step_frac.den);
1467 s->step_frac.num %= s->step_frac.den;
1468 if (s->step_frac.num) {
1469 av_log(ctx, AV_LOG_VERBOSE, "audio: %d Hz, step = %d + %d/%d.\n",
1470 inlink->sample_rate, s->step, s->step_frac.num, s->step_frac.den);
1471 } else {
1472 av_log(ctx, AV_LOG_VERBOSE, "audio: %d Hz, step = %d.\n",
1473 inlink->sample_rate, s->step);
1474 }
1475
1476 return 0;
1477}
1478
1479
1480static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
1481{
1482 AVFilterContext *ctx = inlink->dst;
1483 AVFilterLink *outlink = ctx->outputs[0];
1484 ShowCQTContext *s = ctx->priv;
1485 int remaining, step, ret, x, i, j, m, got_frame = 0;
1486 float *audio_data;
1487 AVFrame *out = NULL;
1488
1489 if (!insamples) {
1490 while (s->remaining_fill < s->remaining_fill_max) {
1491 memset(&s->fft_data[s->fft_len/2 + s->remaining_fill_max - s->remaining_fill], 0, sizeof(*s->fft_data) * s->remaining_fill);
1492 ret = plot_cqt(ctx, &out);
1493 if (ret < 0)
1494 return ret;
1495
1496 step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1497 s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1498 for (x = 0; x < (s->fft_len/2 + s->remaining_fill_max - step); x++)
1499 s->fft_data[x] = s->fft_data[x+step];
1500 s->remaining_fill += step;
1501 s->next_pts++;
1502
1503 if (out) {
1504 out->pts = s->next_pts;
1505 out->duration = 1;
1506 return ff_filter_frame(outlink, out);
1507 }
1508 }
1509 return 0;
1510 }
1511
1512 remaining = insamples->nb_samples;
1513 audio_data = (float*) insamples->data[0];
1514
1515 while (remaining) {
1516 i = insamples->nb_samples - remaining;
1517 j = s->fft_len/2 + s->remaining_fill_max - s->remaining_fill;
1518 if (remaining >= s->remaining_fill) {
1519 for (m = FFMAX(0, -j); m < s->remaining_fill; m++) {
1520 s->fft_data[j+m].re = audio_data[2*(i+m)];
1521 s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1522 }
1523 ret = plot_cqt(ctx, &out);
1524 if (ret < 0) {
1525 av_frame_free(&insamples);
1526 return ret;
1527 }
1528 remaining -= s->remaining_fill;
1529 if (out) {
1530 int64_t pts = av_rescale_q(insamples->nb_samples - remaining - s->remaining_fill_max,
1531 av_make_q(1, inlink->sample_rate), inlink->time_base);
1532 out->pts = av_rescale_q(insamples->pts + pts, inlink->time_base, outlink->time_base);
1533 out->duration = 1;
1534 got_frame = 1;
1535 ret = ff_filter_frame(outlink, out);
1536 if (ret < 0) {
1537 av_frame_free(&insamples);
1538 return ret;
1539 }
1540 out = NULL;
1541 }
1542 step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1543 s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1544 for (m = 0; m < s->fft_len/2 + s->remaining_fill_max - step; m++)
1545 s->fft_data[m] = s->fft_data[m+step];
1546 s->remaining_fill = step;
1547 } else {
1548 for (m = FFMAX(0, -j); m < remaining; m++) {
1549 s->fft_data[j+m].re = audio_data[2*(i+m)];
1550 s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1551 }
1552 s->remaining_fill -= remaining;
1553 remaining = 0;
1554 }
1555 }
1556 if (!got_frame)
1557 ff_filter_set_ready(ctx, 100);
1558 av_frame_free(&insamples);
1559 return 0;
1560}
1561
1562static int activate(AVFilterContext *ctx)
1563{
1564 AVFilterLink *inlink = ctx->inputs[0];
1565 AVFilterLink *outlink = ctx->outputs[0];
1566 ShowCQTContext *s = ctx->priv;
1567 int nb_samples, ret, status;
1568 int64_t pts;
1569 AVFrame *in;
1570
1571 FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
1572
1573 nb_samples = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1574 ret = ff_inlink_consume_samples(inlink, nb_samples, nb_samples, &in);
1575 if (ret < 0)
1576 return ret;
1577 if (ret > 0)
1578 return filter_frame(inlink, in);
1579
1580 if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
1581 if (status == AVERROR_EOF) {
1582 s->next_pts = av_rescale_q(pts, inlink->time_base, outlink->time_base);
1583 ret = filter_frame(inlink, NULL);
1584 ff_outlink_set_status(outlink, AVERROR_EOF, s->next_pts);
1585 return ret;
1586 }
1587 }
1588
1589 FF_FILTER_FORWARD_WANTED(outlink, inlink);
1590
1591 return FFERROR_NOT_READY;
1592}
1593
1594static const AVFilterPad showcqt_outputs[] = {
1595 {
1596 .name = "default",
1597 .type = AVMEDIA_TYPE_VIDEO,
1598 .config_props = config_output,
1599 },
1600};
1601
1602const FFFilter ff_avf_showcqt = {
1603 .p.name = "showcqt",
1604 .p.description = NULL_IF_CONFIG_SMALL("Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output."),
1605 .p.priv_class = &showcqt_class,
1606 .init = init,
1607 .activate = activate,
1608 .uninit = uninit,
1609 .priv_size = sizeof(ShowCQTContext),
1610 FILTER_INPUTS(ff_audio_default_filterpad),
1611 FILTER_OUTPUTS(showcqt_outputs),
1612 FILTER_QUERY_FUNC2(query_formats),
1613};
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition dsp.h:87
sample_fmts
static enum AVSampleFormat sample_fmts[]
Definition adpcmenc.c:933
val
static double val(void *priv, double ch)
Definition aeval.c:77
query_formats
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
Definition aeval.c:246
format
static const char *const format[]
Definition af_aiir.c:444
double
double
Definition af_crystalizer.c:132
ff_avf_showcqt
const FFFilter ff_avf_showcqt
Definition avf_showcqt.c:1602
ff_audio_default_filterpad
const AVFilterPad ff_audio_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_AUDIO.
Definition audio.c:34
BLEND_CHROMA2x2
#define BLEND_CHROMA2x2(c)
Definition avf_showcqt.c:943
create_freq_table
static double * create_freq_table(double base, double end, int n)
Definition avf_showcqt.c:168
init_axis_from_file
static int init_axis_from_file(ShowCQTContext *s)
Definition avf_showcqt.c:406
DRAW_BAR_WITH_CHROMA
#define DRAW_BAR_WITH_CHROMA(x)
Definition avf_showcqt.c:786
VOLUME_MAX
#define VOLUME_MAX
Definition avf_showcqt.c:54
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
Definition avf_showcqt.c:1480
rgb_from_cqt
static void rgb_from_cqt(ColorFloat *c, const AVComplexFloat *v, float g, int len, float cscheme[6])
Definition avf_showcqt.c:735
TLENGTH_MIN
#define TLENGTH_MIN
Definition avf_showcqt.c:53
process_cqt
static void process_cqt(ShowCQTContext *s)
Definition avf_showcqt.c:1086
BLEND_WITH_CHROMA
#define BLEND_WITH_CHROMA(c)
Definition avf_showcqt.c:892
BLEND_CHROMA2
#define BLEND_CHROMA2(c)
Definition avf_showcqt.c:926
init_volume
static int init_volume(ShowCQTContext *s)
Definition avf_showcqt.c:231
convert_axis_pixel_format
static enum AVPixelFormat convert_axis_pixel_format(enum AVPixelFormat format)
Definition avf_showcqt.c:388
draw_sono
static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx)
Definition avf_showcqt.c:1030
cqt_calc
static void cqt_calc(AVComplexFloat *dst, const AVComplexFloat *src, const Coeffs *coeffs, int len, int fft_len)
Definition avf_showcqt.c:273
FONTCOLOR
#define FONTCOLOR
Definition avf_showcqt.c:55
init_axis_empty
static int init_axis_empty(ShowCQTContext *s)
Definition avf_showcqt.c:399
midi
static double midi(void *p, double f)
Definition avf_showcqt.c:436
g_func
static double g_func(void *p, double x)
Definition avf_showcqt.c:447
init_axis_color
static int init_axis_color(ShowCQTContext *s, AVFrame *tmp, int half)
Definition avf_showcqt.c:459
common_uninit
static void common_uninit(ShowCQTContext *s)
Definition avf_showcqt.c:111
c_weighting
static double c_weighting(void *p, double f)
Definition avf_showcqt.c:224
plot_cqt
static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
Definition avf_showcqt.c:1132
BASEFREQ
#define BASEFREQ
Definition avf_showcqt.c:50
clip_with_log
static double clip_with_log(void *log_ctx, const char *name, double val, double min, double max, double nan_replace, int idx)
Definition avf_showcqt.c:188
BLEND_WITHOUT_CHROMA
#define BLEND_WITHOUT_CHROMA(c, alpha_inc)
Definition avf_showcqt.c:912
init_cscheme
static int init_cscheme(ShowCQTContext *s)
Definition avf_showcqt.c:1234
calculate_gamma
static float calculate_gamma(float v, float g)
Definition avf_showcqt.c:722
draw_axis_yuv
static void draw_axis_yuv(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
Definition avf_showcqt.c:965
DRAW_BAR_WITHOUT_CHROMA
#define DRAW_BAR_WITHOUT_CHROMA(x)
Definition avf_showcqt.c:801
r_func
static double r_func(void *p, double x)
Definition avf_showcqt.c:441
render_freetype
static int render_freetype(ShowCQTContext *s, AVFrame *tmp, char *fontfile)
Definition avf_showcqt.c:506
alloc_frame_empty
static AVFrame * alloc_frame_empty(enum AVPixelFormat format, int w, int h)
Definition avf_showcqt.c:362
query_formats
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
Definition avf_showcqt.c:1318
init_colormatrix
static void init_colormatrix(ShowCQTContext *s)
Definition avf_showcqt.c:1198
render_fontconfig
static int render_fontconfig(ShowCQTContext *s, AVFrame *tmp, char *font)
Definition avf_showcqt.c:590
activate
static int activate(AVFilterContext *ctx)
Definition avf_showcqt.c:1562
update_sono_rgb
static void update_sono_rgb(AVFrame *sono, const ColorFloat *c, int idx)
Definition avf_showcqt.c:1055
draw_bar_yuv
static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h, const ColorFloat *c, int bar_h, float bar_t)
Definition avf_showcqt.c:812
showcqt_outputs
static const AVFilterPad showcqt_outputs[]
Definition avf_showcqt.c:1594
init_axis_from_font
static int init_axis_from_font(ShowCQTContext *s)
Definition avf_showcqt.c:681
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition avf_showcqt.c:1313
b_func
static double b_func(void *p, double x)
Definition avf_showcqt.c:453
render_default_font
static int render_default_font(AVFrame *tmp)
Definition avf_showcqt.c:654
b_weighting
static double b_weighting(void *p, double f)
Definition avf_showcqt.c:217
yuv_from_cqt
static void yuv_from_cqt(ColorFloat *c, const AVComplexFloat *v, float gamma, int len, float cm[3][3], float cscheme[6])
Definition avf_showcqt.c:745
a_weighting
static double a_weighting(void *p, double f)
Definition avf_showcqt.c:209
showcqt_options
static const AVOption showcqt_options[]
Definition avf_showcqt.c:63
OFFSET
#define OFFSET(x)
Definition avf_showcqt.c:60
config_output
static int config_output(AVFilterLink *outlink)
Definition avf_showcqt.c:1349
init_cqt
static int init_cqt(ShowCQTContext *s)
Definition avf_showcqt.c:300
update_sono_yuv
static void update_sono_yuv(AVFrame *sono, const ColorFloat *c, int idx)
Definition avf_showcqt.c:1067
TLENGTH
#define TLENGTH
Definition avf_showcqt.c:52
UPDATE_TIME
#define UPDATE_TIME(t)
ENDFREQ
#define ENDFREQ
Definition avf_showcqt.c:51
draw_axis_rgb
static void draw_axis_rgb(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
Definition avf_showcqt.c:863
draw_bar_rgb
static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h, const ColorFloat *c, int bar_h, float bar_t)
Definition avf_showcqt.c:759
CSCHEME
#define CSCHEME
Definition avf_showcqt.c:58
avf_showcqt.h
ff_showcqt_init_x86
void ff_showcqt_init_x86(ShowCQTContext *s)
Definition avf_showcqt_init.c:47
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition avfilter.c:1467
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition avfilter.c:1068
ff_inlink_consume_samples
int ff_inlink_consume_samples(AVFilterLink *link, unsigned min, unsigned max, AVFrame **rframe)
Take samples from the link's FIFO and update the link's stats.
Definition avfilter.c:1540
ff_filter_set_ready
void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
Mark a filter ready and schedule it for activation.
Definition avfilter.c:229
avfilter.h
Main libavfilter public API header.
vars
static const uint8_t vars[2][12]
Definition camellia.c:183
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
f
#define f(width, name)
Definition cbs_vp8.c:236
s
#define s(width, name)
Definition cbs_vp9.c:198
xs
#define xs(width, name, var, subs,...)
Definition cbs_vp9.c:222
channel_layout.h
Public libavutil channel layout APIs header.
FLAGS
#define FLAGS
Definition cmdutils.c:598
av_clipd
#define av_clipd
Definition common.h:148
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition common.h:74
NULL
#define NULL
Definition coverity.c:32
int64_t
long long int64_t
Definition coverity.c:34
sqrtf
static __device__ float sqrtf(float a)
Definition cuda_runtime.h:184
ceil
static __device__ float ceil(float a)
Definition cuda_runtime.h:176
floor
static __device__ float floor(float a)
Definition cuda_runtime.h:173
min
#define min(a, b)
Definition cuda_runtime.h:34
max
#define max(a, b)
Definition cuda_runtime.h:33
channel_layouts
static const uint16_t channel_layouts[7]
Definition dca_lbr.c:112
init
int(* init)(AVBSFContext *ctx)
Definition dts2pts.c:608
cm
#define cm
Definition dvbsubdec.c:40
av_expr_free
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
Definition eval.c:368
av_expr_eval
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
Definition eval.c:824
av_expr_parse
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
Definition eval.c:735
exp
int8_t exp
Definition eval.c:76
eval.h
simple arithmetic expression evaluator
ff_formats_ref
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add ref as a new reference to formats.
Definition formats.c:756
ff_set_common_channel_layouts_from_list2
int ff_set_common_channel_layouts_from_list2(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out, const AVChannelLayout *fmts)
Definition formats.c:1026
ff_make_sample_format_list
av_warn_unused_result AVFilterFormats * ff_make_sample_format_list(const enum AVSampleFormat *fmts)
Create a list of supported sample formats.
ff_make_pixel_format_list
av_warn_unused_result AVFilterFormats * ff_make_pixel_format_list(const enum AVPixelFormat *fmts)
Create a list of supported pixel formats.
fail
#define fail
Definition test.h:479
AV_OPT_TYPE_IMAGE_SIZE
@ AV_OPT_TYPE_IMAGE_SIZE
Underlying C type is two consecutive integers.
Definition opt.h:302
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition opt.h:298
AV_OPT_TYPE_VIDEO_RATE
@ AV_OPT_TYPE_VIDEO_RATE
Underlying C type is AVRational.
Definition opt.h:314
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition opt.h:258
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Underlying C type is double.
Definition opt.h:266
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
Definition opt.h:270
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
Definition opt.h:326
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
Definition opt.h:275
AV_CHANNEL_LAYOUT_STEREO
#define AV_CHANNEL_LAYOUT_STEREO
Definition channel_layout.h:395
AV_CHANNEL_LAYOUT_STEREO_DOWNMIX
#define AV_CHANNEL_LAYOUT_STEREO_DOWNMIX
Definition channel_layout.h:432
AVERROR_UNKNOWN
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition error.h:73
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition error.h:57
AVERROR
#define AVERROR(e)
Definition error.h:45
av_frame_get_buffer
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
Definition frame.c:206
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition frame.c:64
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition frame.c:52
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition log.h:216
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition log.h:226
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
av_make_q
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition rational.h:71
av_inv_q
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition rational.h:159
av_div_q
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
Definition rational.c:88
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition mathematics.c:142
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition samplefmt.h:55
AV_SAMPLE_FMT_FLT
@ AV_SAMPLE_FMT_FLT
float
Definition samplefmt.h:60
AV_SAMPLE_FMT_NONE
@ AV_SAMPLE_FMT_NONE
Definition samplefmt.h:56
a
int a
Definition h264pred_template.c:416
r
#define r
Definition input.c:42
b
#define b
Definition input.c:43
scale
static void scale(int *out, const int *in, const int w, const int h, const int shift)
Definition intra.c:278
ff_load_image
int ff_load_image(struct AVFrame **outframe, const char *filename, void *log_ctx)
Load image from filename and put the resulting image in an AVFrame.
Definition lavfutils.c:32
lavfutils.h
Miscellaneous utilities which make use of the libavformat library.
uninit
static av_cold void uninit(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:135
activate
static int activate(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:144
config_output
static int config_output(AVBitStreamFilterLink *outlink)
Definition lcevc_merge.c:111
u
#define u(width, name, range_min, range_max)
Definition cbs_apv.c:68
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition filters.h:264
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition filters.h:265
FF_FILTER_FORWARD_WANTED
#define FF_FILTER_FORWARD_WANTED(outlink, inlink)
Forward the frame_wanted_out flag from an output link to an input link.
Definition filters.h:694
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition filters.h:629
FFERROR_NOT_READY
#define FFERROR_NOT_READY
Filters implementation helper functions and internal structures.
Definition filters.h:34
FF_FILTER_FORWARD_STATUS_BACK
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
Definition filters.h:639
ff_filter_link
static FilterLink * ff_filter_link(AVFilterLink *link)
Definition filters.h:199
AVFILTER_DEFINE_CLASS
#define AVFILTER_DEFINE_CLASS(fname)
Definition filters.h:478
FILTER_QUERY_FUNC2
#define FILTER_QUERY_FUNC2(func)
Definition filters.h:241
attributes.h
Macro definitions for various function/variable attributes.
av_fallthrough
#define av_fallthrough
Definition attributes.h:67
av_cold
#define av_cold
Definition attributes.h:117
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:88
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition libkvazaar.c:296
log2
#define log2(x)
Definition libm.h:406
isnan
#define isnan(x)
Definition libm.h:342
expf
#define expf(x)
Definition libm.h:285
cbrtf
static av_always_inline float cbrtf(float x)
Definition libm.h:63
lrintf
#define lrintf(x)
Definition libm_mips.h:72
w
uint8_t w
Definition llvidencdsp.c:39
ff_scale_image
int ff_scale_image(uint8_t *dst_data[4], int dst_linesize[4], int dst_w, int dst_h, enum AVPixelFormat dst_pix_fmt, uint8_t *const src_data[4], int src_linesize[4], int src_w, int src_h, enum AVPixelFormat src_pix_fmt, void *log_ctx)
Scale image using libswscale.
Definition lswsutils.c:22
lswsutils.h
Miscellaneous utilities which make use of the libswscale library.
mask
static const uint16_t mask[17]
Definition lzw.c:38
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
FFALIGN
#define FFALIGN(x, a)
Definition macros.h:78
M_PI
#define M_PI
Definition mathematics.h:67
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition mem.c:264
mem.h
Memory handling functions.
half
static uint8_t half(int a, int b)
Definition mobiclip.c:540
data
const char data[16]
Definition mxf.c:149
var_names
static const char *const var_names[]
Definition noise.c:30
opt.h
AVOptions.
inc
static int inc(int num, int period)
Definition perlin.c:34
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition pixdesc.c:3380
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition pixfmt.h:766
AVPixelFormat
AVPixelFormat
Pixel format.
Definition pixfmt.h:71
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition pixfmt.h:72
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition pixfmt.h:75
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition pixfmt.h:73
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition pixfmt.h:77
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition pixfmt.h:108
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition pixfmt.h:100
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition pixfmt.h:78
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition pixfmt.h:174
AVCOL_SPC_BT709
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B
Definition pixfmt.h:708
AVCOL_SPC_BT470BG
@ AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
Definition pixfmt.h:712
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition pixfmt.h:717
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition pixfmt.h:709
AVCOL_SPC_SMPTE170M
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
Definition pixfmt.h:713
AVCOL_SPC_FCC
@ AVCOL_SPC_FCC
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition pixfmt.h:711
AVCOL_SPC_SMPTE240M
@ AVCOL_SPC_SMPTE240M
derived from 170M primaries and D65 white point, 170M is derived from BT470 System M's primaries
Definition pixfmt.h:714
name
const char * name
Definition qsvenc.c:142
formats
formats
Definition signature.h:47
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition channel_layout.h:319
AVComplexFloat::im
float im
Definition tx.h:28
AVComplexFloat::re
float re
Definition tx.h:28
AVExpr
Definition eval.c:171
AVFilterContext
An instance of a filter.
Definition avfilter.h:273
AVFilterFormatsConfig
Lists of formats / etc.
Definition avfilter.h:120
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition formats.h:64
AVFilterPad
A filter pad used for either input or output.
Definition filters.h:40
AVFrame
This structure describes decoded (raw) audio or video data.
Definition frame.h:472
AVFrame::nb_samples
int nb_samples
number of audio samples (per channel) described by this frame
Definition frame.h:552
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition frame.h:574
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition frame.h:493
AVFrame::width
int width
Definition frame.h:544
AVFrame::height
int height
Definition frame.h:544
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition frame.h:517
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition frame.h:559
AVOption
AVOption.
Definition opt.h:428
Coeffs::start
int start
Definition avf_showcqt.h:29
Coeffs::len
int len
Definition avf_showcqt.h:29
Coeffs::val
float * val
Definition avf_showcqt.h:28
rgb
Definition rpzaenc.c:60
rgb::b
uint8_t b
Definition rpzaenc.c:63
rgb::g
uint8_t g
Definition rpzaenc.c:62
rgb::r
uint8_t r
Definition rpzaenc.c:61
level
uint8_t level
Definition svq3.c:208
lrint
#define lrint
Definition tablegen.h:53
av_malloc_array
#define av_malloc_array(a, b)
Definition tableprint_vlc.h:32
av_freep
#define av_freep(p)
Definition tableprint_vlc.h:35
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
error
static void error(const char *err)
Definition target_bsf_fuzzer.c:32
tmp
static uint8_t tmp[40]
Definition aes_ctr.c:52
src
#define src
Definition vp8dsp.c:248
out
static FILE * out
Definition movenc.c:55
ctx
static AVFormatContext * ctx
Definition movenc.c:49
height
#define height
Definition dsp.h:89
width
#define width
Definition dsp.h:89
av_gettime_relative
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
Definition time.c:57
pts
static int64_t pts
Definition transcode_aac.c:649
av_tx_uninit
av_cold void av_tx_uninit(AVTXContext **ctx)
Frees a context and sets *ctx to NULL, does nothing when *ctx == NULL.
Definition tx.c:295
av_tx_init
av_cold int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type, int inv, int len, const void *scale, uint64_t flags)
Initialize a transform context with the given configuration (i)MDCTs with an odd length are currently...
Definition tx.c:903
AV_TX_FLOAT_FFT
@ AV_TX_FLOAT_FFT
Standard complex to complex FFT with sample data type of AVComplexFloat, AVComplexDouble or AVComplex...
Definition tx.h:47
g
const char * g
Definition vf_curves.c:128
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition video.c:89
len
int len
Definition vorbis_enc_data.h:426
base
uint8_t base
Definition vp3data.h:128
h
h
Definition vp9dsp_template.c:2070
c
static double c[64]
Definition vsrc_mptestsrc.c:89
avpriv_vga16_font_get
const uint8_t * avpriv_vga16_font_get(void)
Definition xga_font_data.c:424
vga16_font
static const uint8_t vga16_font[4096]
Definition xga_font_data.c:165
xga_font_data.h
CGA/EGA/VGA ROM font data.
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