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path: root/libavfilter/avf_showcqt.c (plain)
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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 "libavcodec/avfft.h"
23#include "libavutil/avassert.h"
24#include "libavutil/opt.h"
25#include "libavutil/xga_font_data.h"
26#include "libavutil/eval.h"
27#include "libavutil/pixdesc.h"
28#include "libavutil/time.h"
29#include "avfilter.h"
30#include "internal.h"
31#include "lavfutils.h"
32#include "lswsutils.h"
33
34#if CONFIG_LIBFREETYPE
35#include <ft2build.h>
36#include FT_FREETYPE_H
37#endif
38
39#if CONFIG_LIBFONTCONFIG
40#include <fontconfig/fontconfig.h>
41#endif
42
43#include "avf_showcqt.h"
44
45#define BASEFREQ 20.01523126408007475
46#define ENDFREQ 20495.59681441799654
47#define TLENGTH "384*tc/(384+tc*f)"
48#define TLENGTH_MIN 0.001
49#define VOLUME_MAX 100.0
50#define FONTCOLOR "st(0, (midi(f)-59.5)/12);" \
51 "st(1, if(between(ld(0),0,1), 0.5-0.5*cos(2*PI*ld(0)), 0));" \
52 "r(1-ld(1)) + b(ld(1))"
53#define CSCHEME "1|0.5|0|0|0.5|1"
54#define PTS_STEP 10
55#define PTS_TOLERANCE 1
56
57#define OFFSET(x) offsetof(ShowCQTContext, x)
58#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
59
60static const AVOption showcqt_options[] = {
61 { "size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
62 { "s", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
63 { "fps", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
64 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
65 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
66 { "bar_h", "set bargraph height", OFFSET(bar_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
67 { "axis_h", "set axis height", OFFSET(axis_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
68 { "sono_h", "set sonogram height", OFFSET(sono_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
69 { "fullhd", "set fullhd size", OFFSET(fullhd), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
70 { "sono_v", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, CHAR_MIN, CHAR_MAX, FLAGS },
71 { "volume", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, CHAR_MIN, CHAR_MAX, FLAGS },
72 { "bar_v", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, CHAR_MIN, CHAR_MAX, FLAGS },
73 { "volume2", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, CHAR_MIN, CHAR_MAX, FLAGS },
74 { "sono_g", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
75 { "gamma", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
76 { "bar_g", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
77 { "gamma2", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
78 { "bar_t", "set bar transparency", OFFSET(bar_t), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, FLAGS },
79 { "timeclamp", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
80 { "tc", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
81 { "basefreq", "set base frequency", OFFSET(basefreq), AV_OPT_TYPE_DOUBLE, { .dbl = BASEFREQ }, 10.0, 100000.0, FLAGS },
82 { "endfreq", "set end frequency", OFFSET(endfreq), AV_OPT_TYPE_DOUBLE, { .dbl = ENDFREQ }, 10.0, 100000.0, FLAGS },
83 { "coeffclamp", "set coeffclamp", OFFSET(coeffclamp), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.1, 10.0, FLAGS },
84 { "tlength", "set tlength", OFFSET(tlength), AV_OPT_TYPE_STRING, { .str = TLENGTH }, CHAR_MIN, CHAR_MAX, FLAGS },
85 { "count", "set transform count", OFFSET(count), AV_OPT_TYPE_INT, { .i64 = 6 }, 1, 30, FLAGS },
86 { "fcount", "set frequency count", OFFSET(fcount), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, FLAGS },
87 { "fontfile", "set axis font file", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS },
88 { "font", "set axis font", OFFSET(font), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS },
89 { "fontcolor", "set font color", OFFSET(fontcolor), AV_OPT_TYPE_STRING, { .str = FONTCOLOR }, CHAR_MIN, CHAR_MAX, FLAGS },
90 { "axisfile", "set axis image", OFFSET(axisfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS },
91 { "axis", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
92 { "text", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
93 { "csp", "set color space", OFFSET(csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, FLAGS, "csp" },
94 { "unspecified", "unspecified", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, 0, FLAGS, "csp" },
95 { "bt709", "bt709", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT709 }, 0, 0, FLAGS, "csp" },
96 { "fcc", "fcc", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_FCC }, 0, 0, FLAGS, "csp" },
97 { "bt470bg", "bt470bg", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT470BG }, 0, 0, FLAGS, "csp" },
98 { "smpte170m", "smpte170m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE170M }, 0, 0, FLAGS, "csp" },
99 { "smpte240m", "smpte240m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE240M }, 0, 0, FLAGS, "csp" },
100 { "bt2020ncl", "bt2020ncl", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT2020_NCL }, 0, 0, FLAGS, "csp" },
101 { "cscheme", "set color scheme", OFFSET(cscheme), AV_OPT_TYPE_STRING, { .str = CSCHEME }, CHAR_MIN, CHAR_MAX, FLAGS },
102 { NULL }
103};
104
105AVFILTER_DEFINE_CLASS(showcqt);
106
107static void common_uninit(ShowCQTContext *s)
108{
109 int k;
110 int level = AV_LOG_DEBUG;
111 int64_t plot_time;
112
113 if (s->fft_time)
114 av_log(s->ctx, level, "fft_time = %16.3f s.\n", s->fft_time * 1e-6);
115 if (s->cqt_time)
116 av_log(s->ctx, level, "cqt_time = %16.3f s.\n", s->cqt_time * 1e-6);
117 if (s->process_cqt_time)
118 av_log(s->ctx, level, "process_cqt_time = %16.3f s.\n", s->process_cqt_time * 1e-6);
119 if (s->update_sono_time)
120 av_log(s->ctx, level, "update_sono_time = %16.3f s.\n", s->update_sono_time * 1e-6);
121 if (s->alloc_time)
122 av_log(s->ctx, level, "alloc_time = %16.3f s.\n", s->alloc_time * 1e-6);
123 if (s->bar_time)
124 av_log(s->ctx, level, "bar_time = %16.3f s.\n", s->bar_time * 1e-6);
125 if (s->axis_time)
126 av_log(s->ctx, level, "axis_time = %16.3f s.\n", s->axis_time * 1e-6);
127 if (s->sono_time)
128 av_log(s->ctx, level, "sono_time = %16.3f s.\n", s->sono_time * 1e-6);
129
130 plot_time = s->fft_time + s->cqt_time + s->process_cqt_time + s->update_sono_time
131 + s->alloc_time + s->bar_time + s->axis_time + s->sono_time;
132 if (plot_time)
133 av_log(s->ctx, level, "plot_time = %16.3f s.\n", plot_time * 1e-6);
134
135 s->fft_time = s->cqt_time = s->process_cqt_time = s->update_sono_time
136 = s->alloc_time = s->bar_time = s->axis_time = s->sono_time = 0;
137 /* axis_frame may be non reference counted frame */
138 if (s->axis_frame && !s->axis_frame->buf[0]) {
139 av_freep(s->axis_frame->data);
140 for (k = 0; k < 4; k++)
141 s->axis_frame->data[k] = NULL;
142 }
143
144 av_frame_free(&s->axis_frame);
145 av_frame_free(&s->sono_frame);
146 av_fft_end(s->fft_ctx);
147 s->fft_ctx = NULL;
148 if (s->coeffs)
149 for (k = 0; k < s->cqt_len; k++)
150 av_freep(&s->coeffs[k].val);
151 av_freep(&s->coeffs);
152 av_freep(&s->fft_data);
153 av_freep(&s->fft_result);
154 av_freep(&s->cqt_result);
155 av_freep(&s->c_buf);
156 av_freep(&s->h_buf);
157 av_freep(&s->rcp_h_buf);
158 av_freep(&s->freq);
159 av_freep(&s->sono_v_buf);
160 av_freep(&s->bar_v_buf);
161}
162
163static double *create_freq_table(double base, double end, int n)
164{
165 double log_base, log_end;
166 double rcp_n = 1.0 / n;
167 double *freq;
168 int x;
169
170 freq = av_malloc_array(n, sizeof(*freq));
171 if (!freq)
172 return NULL;
173
174 log_base = log(base);
175 log_end = log(end);
176 for (x = 0; x < n; x++) {
177 double log_freq = log_base + (x + 0.5) * (log_end - log_base) * rcp_n;
178 freq[x] = exp(log_freq);
179 }
180 return freq;
181}
182
183static double clip_with_log(void *log_ctx, const char *name,
184 double val, double min, double max,
185 double nan_replace, int idx)
186{
187 int level = AV_LOG_WARNING;
188 if (isnan(val)) {
189 av_log(log_ctx, level, "[%d] %s is nan, setting it to %g.\n",
190 idx, name, nan_replace);
191 val = nan_replace;
192 } else if (val < min) {
193 av_log(log_ctx, level, "[%d] %s is too low (%g), setting it to %g.\n",
194 idx, name, val, min);
195 val = min;
196 } else if (val > max) {
197 av_log(log_ctx, level, "[%d] %s it too high (%g), setting it to %g.\n",
198 idx, name, val, max);
199 val = max;
200 }
201 return val;
202}
203
204static double a_weighting(void *p, double f)
205{
206 double ret = 12200.0*12200.0 * (f*f*f*f);
207 ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) *
208 sqrt((f*f + 107.7*107.7) * (f*f + 737.9*737.9));
209 return ret;
210}
211
212static double b_weighting(void *p, double f)
213{
214 double ret = 12200.0*12200.0 * (f*f*f);
215 ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * sqrt(f*f + 158.5*158.5);
216 return ret;
217}
218
219static double c_weighting(void *p, double f)
220{
221 double ret = 12200.0*12200.0 * (f*f);
222 ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0);
223 return ret;
224}
225
226static int init_volume(ShowCQTContext *s)
227{
228 const char *func_names[] = { "a_weighting", "b_weighting", "c_weighting", NULL };
229 const char *sono_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "bar_v", NULL };
230 const char *bar_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "sono_v", NULL };
231 double (*funcs[])(void *, double) = { a_weighting, b_weighting, c_weighting };
232 AVExpr *sono = NULL, *bar = NULL;
233 int x, ret = AVERROR(ENOMEM);
234
235 s->sono_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->sono_v_buf));
236 s->bar_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->bar_v_buf));
237 if (!s->sono_v_buf || !s->bar_v_buf)
238 goto error;
239
240 if ((ret = av_expr_parse(&sono, s->sono_v, sono_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
241 goto error;
242
243 if ((ret = av_expr_parse(&bar, s->bar_v, bar_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
244 goto error;
245
246 for (x = 0; x < s->cqt_len; x++) {
247 double vars[] = { s->timeclamp, s->timeclamp, s->freq[x], s->freq[x], s->freq[x], 0.0 };
248 double vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
249 vars[5] = vol;
250 vol = clip_with_log(s->ctx, "bar_v", av_expr_eval(bar, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
251 s->bar_v_buf[x] = vol * vol;
252 vars[5] = vol;
253 vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
254 s->sono_v_buf[x] = vol * vol;
255 }
256 av_expr_free(sono);
257 av_expr_free(bar);
258 return 0;
259
260error:
261 av_freep(&s->sono_v_buf);
262 av_freep(&s->bar_v_buf);
263 av_expr_free(sono);
264 av_expr_free(bar);
265 return ret;
266}
267
268static void cqt_calc(FFTComplex *dst, const FFTComplex *src, const Coeffs *coeffs,
269 int len, int fft_len)
270{
271 int k, x, i, j;
272 for (k = 0; k < len; k++) {
273 FFTComplex l, r, a = {0,0}, b = {0,0};
274
275 for (x = 0; x < coeffs[k].len; x++) {
276 FFTSample u = coeffs[k].val[x];
277 i = coeffs[k].start + x;
278 j = fft_len - i;
279 a.re += u * src[i].re;
280 a.im += u * src[i].im;
281 b.re += u * src[j].re;
282 b.im += u * src[j].im;
283 }
284
285 /* separate left and right, (and multiply by 2.0) */
286 l.re = a.re + b.re;
287 l.im = a.im - b.im;
288 r.re = b.im + a.im;
289 r.im = b.re - a.re;
290 dst[k].re = l.re * l.re + l.im * l.im;
291 dst[k].im = r.re * r.re + r.im * r.im;
292 }
293}
294
295static int init_cqt(ShowCQTContext *s)
296{
297 const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
298 AVExpr *expr = NULL;
299 int rate = s->ctx->inputs[0]->sample_rate;
300 int nb_cqt_coeffs = 0;
301 int k, x, ret;
302
303 if ((ret = av_expr_parse(&expr, s->tlength, var_names, NULL, NULL, NULL, NULL, 0, s->ctx)) < 0)
304 goto error;
305
306 ret = AVERROR(ENOMEM);
307 if (!(s->coeffs = av_calloc(s->cqt_len, sizeof(*s->coeffs))))
308 goto error;
309
310 for (k = 0; k < s->cqt_len; k++) {
311 double vars[] = { s->timeclamp, s->timeclamp, s->freq[k], s->freq[k], s->freq[k] };
312 double flen, center, tlength;
313 int start, end, m = k;
314
315 if (s->freq[k] > 0.5 * rate)
316 continue;
317 tlength = clip_with_log(s->ctx, "tlength", av_expr_eval(expr, vars, NULL),
318 TLENGTH_MIN, s->timeclamp, s->timeclamp, k);
319
320 flen = 8.0 * s->fft_len / (tlength * rate);
321 center = s->freq[k] * s->fft_len / rate;
322 start = FFMAX(0, ceil(center - 0.5 * flen));
323 end = FFMIN(s->fft_len, floor(center + 0.5 * flen));
324
325 s->coeffs[m].start = start & ~(s->cqt_align - 1);
326 s->coeffs[m].len = (end | (s->cqt_align - 1)) + 1 - s->coeffs[m].start;
327 nb_cqt_coeffs += s->coeffs[m].len;
328 if (!(s->coeffs[m].val = av_calloc(s->coeffs[m].len, sizeof(*s->coeffs[m].val))))
329 goto error;
330
331 for (x = start; x <= end; x++) {
332 int sign = (x & 1) ? (-1) : 1;
333 double y = 2.0 * M_PI * (x - center) * (1.0 / flen);
334 /* nuttall window */
335 double w = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
336 w *= sign * (1.0 / s->fft_len);
337 s->coeffs[m].val[x - s->coeffs[m].start] = w;
338 }
339
340 if (s->permute_coeffs)
341 s->permute_coeffs(s->coeffs[m].val, s->coeffs[m].len);
342 }
343
344 av_expr_free(expr);
345 av_log(s->ctx, AV_LOG_INFO, "nb_cqt_coeffs = %d.\n", nb_cqt_coeffs);
346 return 0;
347
348error:
349 av_expr_free(expr);
350 if (s->coeffs)
351 for (k = 0; k < s->cqt_len; k++)
352 av_freep(&s->coeffs[k].val);
353 av_freep(&s->coeffs);
354 return ret;
355}
356
357static AVFrame *alloc_frame_empty(enum AVPixelFormat format, int w, int h)
358{
359 AVFrame *out;
360 out = av_frame_alloc();
361 if (!out)
362 return NULL;
363 out->format = format;
364 out->width = w;
365 out->height = h;
366 if (av_frame_get_buffer(out, 32) < 0) {
367 av_frame_free(&out);
368 return NULL;
369 }
370 if (format == AV_PIX_FMT_RGB24 || format == AV_PIX_FMT_RGBA) {
371 memset(out->data[0], 0, out->linesize[0] * h);
372 } else {
373 int hh = (format == AV_PIX_FMT_YUV420P || format == AV_PIX_FMT_YUVA420P) ? h / 2 : h;
374 memset(out->data[0], 16, out->linesize[0] * h);
375 memset(out->data[1], 128, out->linesize[1] * hh);
376 memset(out->data[2], 128, out->linesize[2] * hh);
377 if (out->data[3])
378 memset(out->data[3], 0, out->linesize[3] * h);
379 }
380 return out;
381}
382
383static enum AVPixelFormat convert_axis_pixel_format(enum AVPixelFormat format)
384{
385 switch (format) {
386 case AV_PIX_FMT_RGB24: format = AV_PIX_FMT_RGBA; break;
387 case AV_PIX_FMT_YUV444P:
388 case AV_PIX_FMT_YUV422P:
389 case AV_PIX_FMT_YUV420P: format = AV_PIX_FMT_YUVA444P; break;
390 }
391 return format;
392}
393
394static int init_axis_empty(ShowCQTContext *s)
395{
396 if (!(s->axis_frame = alloc_frame_empty(convert_axis_pixel_format(s->format), s->width, s->axis_h)))
397 return AVERROR(ENOMEM);
398 return 0;
399}
400
401static int init_axis_from_file(ShowCQTContext *s)
402{
403 uint8_t *tmp_data[4] = { NULL };
404 int tmp_linesize[4];
405 enum AVPixelFormat tmp_format;
406 int tmp_w, tmp_h, ret;
407
408 if ((ret = ff_load_image(tmp_data, tmp_linesize, &tmp_w, &tmp_h, &tmp_format,
409 s->axisfile, s->ctx)) < 0)
410 goto error;
411
412 ret = AVERROR(ENOMEM);
413 if (!(s->axis_frame = av_frame_alloc()))
414 goto error;
415
416 if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
417 convert_axis_pixel_format(s->format), tmp_data, tmp_linesize, tmp_w, tmp_h,
418 tmp_format, s->ctx)) < 0)
419 goto error;
420
421 s->axis_frame->width = s->width;
422 s->axis_frame->height = s->axis_h;
423 s->axis_frame->format = convert_axis_pixel_format(s->format);
424 av_freep(tmp_data);
425 return 0;
426
427error:
428 av_frame_free(&s->axis_frame);
429 av_freep(tmp_data);
430 return ret;
431}
432
433static double midi(void *p, double f)
434{
435 return log2(f/440.0) * 12.0 + 69.0;
436}
437
438static double r_func(void *p, double x)
439{
440 x = av_clipd(x, 0.0, 1.0);
441 return lrint(x*255.0) << 16;
442}
443
444static double g_func(void *p, double x)
445{
446 x = av_clipd(x, 0.0, 1.0);
447 return lrint(x*255.0) << 8;
448}
449
450static double b_func(void *p, double x)
451{
452 x = av_clipd(x, 0.0, 1.0);
453 return lrint(x*255.0);
454}
455
456static int init_axis_color(ShowCQTContext *s, AVFrame *tmp, int half)
457{
458 const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
459 const char *func_names[] = { "midi", "r", "g", "b", NULL };
460 double (*funcs[])(void *, double) = { midi, r_func, g_func, b_func };
461 AVExpr *expr = NULL;
462 double *freq = NULL;
463 int x, xs, y, ret;
464 int width = half ? 1920/2 : 1920, height = half ? 16 : 32;
465 int step = half ? 2 : 1;
466
467 if (s->basefreq != (double) BASEFREQ || s->endfreq != (double) ENDFREQ) {
468 av_log(s->ctx, AV_LOG_WARNING, "font axis rendering is not implemented in non-default frequency range,"
469 " please use axisfile option instead.\n");
470 return AVERROR(EINVAL);
471 }
472
473 if (s->cqt_len == 1920)
474 freq = s->freq;
475 else if (!(freq = create_freq_table(s->basefreq, s->endfreq, 1920)))
476 return AVERROR(ENOMEM);
477
478 if ((ret = av_expr_parse(&expr, s->fontcolor, var_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0) {
479 if (freq != s->freq)
480 av_freep(&freq);
481 return ret;
482 }
483
484 for (x = 0, xs = 0; x < width; x++, xs += step) {
485 double vars[] = { s->timeclamp, s->timeclamp, freq[xs], freq[xs], freq[xs] };
486 int color = (int) av_expr_eval(expr, vars, NULL);
487 uint8_t r = (color >> 16) & 0xFF, g = (color >> 8) & 0xFF, b = color & 0xFF;
488 uint8_t *data = tmp->data[0];
489 int linesize = tmp->linesize[0];
490 for (y = 0; y < height; y++) {
491 data[linesize * y + 4 * x] = r;
492 data[linesize * y + 4 * x + 1] = g;
493 data[linesize * y + 4 * x + 2] = b;
494 }
495 }
496
497 av_expr_free(expr);
498 if (freq != s->freq)
499 av_freep(&freq);
500 return 0;
501}
502
503static int render_freetype(ShowCQTContext *s, AVFrame *tmp, char *fontfile)
504{
505#if CONFIG_LIBFREETYPE
506 const char *str = "EF G A BC D ";
507 uint8_t *data = tmp->data[0];
508 int linesize = tmp->linesize[0];
509 FT_Library lib = NULL;
510 FT_Face face = NULL;
511 int font_width = 16, font_height = 32;
512 int font_repeat = font_width * 12;
513 int linear_hori_advance = font_width * 65536;
514 int non_monospace_warning = 0;
515 int x;
516
517 if (!fontfile)
518 return AVERROR(EINVAL);
519
520 if (FT_Init_FreeType(&lib))
521 goto fail;
522
523 if (FT_New_Face(lib, fontfile, 0, &face))
524 goto fail;
525
526 if (FT_Set_Char_Size(face, 16*64, 0, 0, 0))
527 goto fail;
528
529 if (FT_Load_Char(face, 'A', FT_LOAD_RENDER))
530 goto fail;
531
532 if (FT_Set_Char_Size(face, 16*64 * linear_hori_advance / face->glyph->linearHoriAdvance, 0, 0, 0))
533 goto fail;
534
535 for (x = 0; x < 12; x++) {
536 int sx, sy, rx, bx, by, dx, dy;
537
538 if (str[x] == ' ')
539 continue;
540
541 if (FT_Load_Char(face, str[x], FT_LOAD_RENDER))
542 goto fail;
543
544 if (face->glyph->advance.x != font_width*64 && !non_monospace_warning) {
545 av_log(s->ctx, AV_LOG_WARNING, "font is not monospace.\n");
546 non_monospace_warning = 1;
547 }
548
549 sy = font_height - 8 - face->glyph->bitmap_top;
550 for (rx = 0; rx < 10; rx++) {
551 sx = rx * font_repeat + x * font_width + face->glyph->bitmap_left;
552 for (by = 0; by < face->glyph->bitmap.rows; by++) {
553 dy = by + sy;
554 if (dy < 0)
555 continue;
556 if (dy >= font_height)
557 break;
558
559 for (bx = 0; bx < face->glyph->bitmap.width; bx++) {
560 dx = bx + sx;
561 if (dx < 0)
562 continue;
563 if (dx >= 1920)
564 break;
565 data[dy*linesize+4*dx+3] = face->glyph->bitmap.buffer[by*face->glyph->bitmap.width+bx];
566 }
567 }
568 }
569 }
570
571 FT_Done_Face(face);
572 FT_Done_FreeType(lib);
573 return 0;
574
575fail:
576 av_log(s->ctx, AV_LOG_WARNING, "error while loading freetype font.\n");
577 FT_Done_Face(face);
578 FT_Done_FreeType(lib);
579 return AVERROR(EINVAL);
580#else
581 if (fontfile)
582 av_log(s->ctx, AV_LOG_WARNING, "freetype is not available, ignoring fontfile option.\n");
583 return AVERROR(EINVAL);
584#endif
585}
586
587static int render_fontconfig(ShowCQTContext *s, AVFrame *tmp, char* font)
588{
589#if CONFIG_LIBFONTCONFIG
590 FcConfig *fontconfig;
591 FcPattern *pat, *best;
592 FcResult result = FcResultMatch;
593 char *filename;
594 int i, ret;
595
596 if (!font)
597 return AVERROR(EINVAL);
598
599 for (i = 0; font[i]; i++) {
600 if (font[i] == '|')
601 font[i] = ':';
602 }
603
604 if (!(fontconfig = FcInitLoadConfigAndFonts())) {
605 av_log(s->ctx, AV_LOG_ERROR, "impossible to init fontconfig.\n");
606 return AVERROR_UNKNOWN;
607 }
608
609 if (!(pat = FcNameParse((uint8_t *)font))) {
610 av_log(s->ctx, AV_LOG_ERROR, "could not parse fontconfig pat.\n");
611 FcConfigDestroy(fontconfig);
612 return AVERROR(EINVAL);
613 }
614
615 FcDefaultSubstitute(pat);
616
617 if (!FcConfigSubstitute(fontconfig, pat, FcMatchPattern)) {
618 av_log(s->ctx, AV_LOG_ERROR, "could not substitue fontconfig options.\n");
619 FcPatternDestroy(pat);
620 FcConfigDestroy(fontconfig);
621 return AVERROR(ENOMEM);
622 }
623
624 best = FcFontMatch(fontconfig, pat, &result);
625 FcPatternDestroy(pat);
626
627 ret = AVERROR(EINVAL);
628 if (!best || result != FcResultMatch) {
629 av_log(s->ctx, AV_LOG_ERROR, "cannot find a valid font for %s.\n", font);
630 goto fail;
631 }
632
633 if (FcPatternGetString(best, FC_FILE, 0, (FcChar8 **)&filename) != FcResultMatch) {
634 av_log(s->ctx, AV_LOG_ERROR, "no file path for %s\n", font);
635 goto fail;
636 }
637
638 ret = render_freetype(s, tmp, filename);
639
640fail:
641 FcPatternDestroy(best);
642 FcConfigDestroy(fontconfig);
643 return ret;
644#else
645 if (font)
646 av_log(s->ctx, AV_LOG_WARNING, "fontconfig is not available, ignoring font option.\n");
647 return AVERROR(EINVAL);
648#endif
649}
650
651static int render_default_font(AVFrame *tmp)
652{
653 const char *str = "EF G A BC D ";
654 int x, u, v, mask;
655 uint8_t *data = tmp->data[0];
656 int linesize = tmp->linesize[0];
657 int width = 1920/2, height = 16;
658
659 for (x = 0; x < width; x += width/10) {
660 uint8_t *startptr = data + 4 * x;
661 for (u = 0; u < 12; u++) {
662 for (v = 0; v < height; v++) {
663 uint8_t *p = startptr + v * linesize + height/2 * 4 * u;
664 for (mask = 0x80; mask; mask >>= 1, p += 4) {
665 if (mask & avpriv_vga16_font[str[u] * 16 + v])
666 p[3] = 255;
667 else
668 p[3] = 0;
669 }
670 }
671 }
672 }
673
674 return 0;
675}
676
677static int init_axis_from_font(ShowCQTContext *s)
678{
679 AVFrame *tmp = NULL;
680 int ret = AVERROR(ENOMEM);
681 int width = 1920, height = 32;
682 int default_font = 0;
683
684 if (!(tmp = alloc_frame_empty(AV_PIX_FMT_RGBA, width, height)))
685 goto fail;
686
687 if (!(s->axis_frame = av_frame_alloc()))
688 goto fail;
689
690 if (render_freetype(s, tmp, s->fontfile) < 0 &&
691 render_fontconfig(s, tmp, s->font) < 0 &&
692 (default_font = 1, ret = render_default_font(tmp)) < 0)
693 goto fail;
694
695 if (default_font)
696 width /= 2, height /= 2;
697
698 if ((ret = init_axis_color(s, tmp, default_font)) < 0)
699 goto fail;
700
701 if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
702 convert_axis_pixel_format(s->format), tmp->data, tmp->linesize,
703 width, height, AV_PIX_FMT_RGBA, s->ctx)) < 0)
704 goto fail;
705
706 av_frame_free(&tmp);
707 s->axis_frame->width = s->width;
708 s->axis_frame->height = s->axis_h;
709 s->axis_frame->format = convert_axis_pixel_format(s->format);
710 return 0;
711
712fail:
713 av_frame_free(&tmp);
714 av_frame_free(&s->axis_frame);
715 return ret;
716}
717
718static float calculate_gamma(float v, float g)
719{
720 if (g == 1.0f)
721 return v;
722 if (g == 2.0f)
723 return sqrtf(v);
724 if (g == 3.0f)
725 return cbrtf(v);
726 if (g == 4.0f)
727 return sqrtf(sqrtf(v));
728 return expf(logf(v) / g);
729}
730
731static void rgb_from_cqt(ColorFloat *c, const FFTComplex *v, float g, int len, float cscheme[6])
732{
733 int x;
734 for (x = 0; x < len; x++) {
735 c[x].rgb.r = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), g);
736 c[x].rgb.g = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), g);
737 c[x].rgb.b = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), g);
738 }
739}
740
741static void yuv_from_cqt(ColorFloat *c, const FFTComplex *v, float gamma, int len, float cm[3][3], float cscheme[6])
742{
743 int x;
744 for (x = 0; x < len; x++) {
745 float r, g, b;
746 r = calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), gamma);
747 g = calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), gamma);
748 b = calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), gamma);
749 c[x].yuv.y = cm[0][0] * r + cm[0][1] * g + cm[0][2] * b;
750 c[x].yuv.u = cm[1][0] * r + cm[1][1] * g + cm[1][2] * b;
751 c[x].yuv.v = cm[2][0] * r + cm[2][1] * g + cm[2][2] * b;
752 }
753}
754
755static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
756 const ColorFloat *c, int bar_h, float bar_t)
757{
758 int x, y, w = out->width;
759 float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
760 uint8_t *v = out->data[0], *lp;
761 int ls = out->linesize[0];
762
763 for (y = 0; y < bar_h; y++) {
764 ht = (bar_h - y) * rcp_bar_h;
765 lp = v + y * ls;
766 for (x = 0; x < w; x++) {
767 if (h[x] <= ht) {
768 *lp++ = 0;
769 *lp++ = 0;
770 *lp++ = 0;
771 } else {
772 mul = (h[x] - ht) * rcp_h[x];
773 mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f;
774 *lp++ = lrintf(mul * c[x].rgb.r);
775 *lp++ = lrintf(mul * c[x].rgb.g);
776 *lp++ = lrintf(mul * c[x].rgb.b);
777 }
778 }
779 }
780}
781
782#define DRAW_BAR_WITH_CHROMA(x) \
783do { \
784 if (h[x] <= ht) { \
785 *lpy++ = 16; \
786 *lpu++ = 128; \
787 *lpv++ = 128; \
788 } else { \
789 mul = (h[x] - ht) * rcp_h[x]; \
790 mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
791 *lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
792 *lpu++ = lrintf(mul * c[x].yuv.u + 128.0f); \
793 *lpv++ = lrintf(mul * c[x].yuv.v + 128.0f); \
794 } \
795} while (0)
796
797#define DRAW_BAR_WITHOUT_CHROMA(x) \
798do { \
799 if (h[x] <= ht) { \
800 *lpy++ = 16; \
801 } else { \
802 mul = (h[x] - ht) * rcp_h[x]; \
803 mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
804 *lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
805 } \
806} while (0)
807
808static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h,
809 const ColorFloat *c, int bar_h, float bar_t)
810{
811 int x, y, yh, w = out->width;
812 float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
813 uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
814 uint8_t *lpy, *lpu, *lpv;
815 int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
816 int fmt = out->format;
817
818 for (y = 0; y < bar_h; y += 2) {
819 yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
820 ht = (bar_h - y) * rcp_bar_h;
821 lpy = vy + y * lsy;
822 lpu = vu + yh * lsu;
823 lpv = vv + yh * lsv;
824 if (fmt == AV_PIX_FMT_YUV444P) {
825 for (x = 0; x < w; x += 2) {
826 DRAW_BAR_WITH_CHROMA(x);
827 DRAW_BAR_WITH_CHROMA(x+1);
828 }
829 } else {
830 for (x = 0; x < w; x += 2) {
831 DRAW_BAR_WITH_CHROMA(x);
832 DRAW_BAR_WITHOUT_CHROMA(x+1);
833 }
834 }
835
836 ht = (bar_h - (y+1)) * rcp_bar_h;
837 lpy = vy + (y+1) * lsy;
838 lpu = vu + (y+1) * lsu;
839 lpv = vv + (y+1) * lsv;
840 if (fmt == AV_PIX_FMT_YUV444P) {
841 for (x = 0; x < w; x += 2) {
842 DRAW_BAR_WITH_CHROMA(x);
843 DRAW_BAR_WITH_CHROMA(x+1);
844 }
845 } else if (fmt == AV_PIX_FMT_YUV422P) {
846 for (x = 0; x < w; x += 2) {
847 DRAW_BAR_WITH_CHROMA(x);
848 DRAW_BAR_WITHOUT_CHROMA(x+1);
849 }
850 } else {
851 for (x = 0; x < w; x += 2) {
852 DRAW_BAR_WITHOUT_CHROMA(x);
853 DRAW_BAR_WITHOUT_CHROMA(x+1);
854 }
855 }
856 }
857}
858
859static void draw_axis_rgb(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
860{
861 int x, y, w = axis->width, h = axis->height;
862 float a, rcp_255 = 1.0f / 255.0f;
863 uint8_t *lp, *lpa;
864
865 for (y = 0; y < h; y++) {
866 lp = out->data[0] + (off + y) * out->linesize[0];
867 lpa = axis->data[0] + y * axis->linesize[0];
868 for (x = 0; x < w; x++) {
869 if (!lpa[3]) {
870 *lp++ = lrintf(c[x].rgb.r);
871 *lp++ = lrintf(c[x].rgb.g);
872 *lp++ = lrintf(c[x].rgb.b);
873 } else if (lpa[3] == 255) {
874 *lp++ = lpa[0];
875 *lp++ = lpa[1];
876 *lp++ = lpa[2];
877 } else {
878 a = rcp_255 * lpa[3];
879 *lp++ = lrintf(a * lpa[0] + (1.0f - a) * c[x].rgb.r);
880 *lp++ = lrintf(a * lpa[1] + (1.0f - a) * c[x].rgb.g);
881 *lp++ = lrintf(a * lpa[2] + (1.0f - a) * c[x].rgb.b);
882 }
883 lpa += 4;
884 }
885 }
886}
887
888#define BLEND_WITH_CHROMA(c) \
889do { \
890 if (!*lpaa) { \
891 *lpy = lrintf(c.yuv.y + 16.0f); \
892 *lpu = lrintf(c.yuv.u + 128.0f); \
893 *lpv = lrintf(c.yuv.v + 128.0f); \
894 } else if (255 == *lpaa) { \
895 *lpy = *lpay; \
896 *lpu = *lpau; \
897 *lpv = *lpav; \
898 } else { \
899 float a = (1.0f/255.0f) * (*lpaa); \
900 *lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
901 *lpu = lrintf(a * (*lpau) + (1.0f - a) * (c.yuv.u + 128.0f)); \
902 *lpv = lrintf(a * (*lpav) + (1.0f - a) * (c.yuv.v + 128.0f)); \
903 } \
904 lpy++; lpu++; lpv++; \
905 lpay++; lpau++; lpav++; lpaa++; \
906} while (0)
907
908#define BLEND_WITHOUT_CHROMA(c, alpha_inc) \
909do { \
910 if (!*lpaa) { \
911 *lpy = lrintf(c.yuv.y + 16.0f); \
912 } else if (255 == *lpaa) { \
913 *lpy = *lpay; \
914 } else { \
915 float a = (1.0f/255.0f) * (*lpaa); \
916 *lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
917 } \
918 lpy++; \
919 lpay++; lpaa += alpha_inc; \
920} while (0)
921
922#define BLEND_CHROMA2(c) \
923do { \
924 if (!lpaa[0] && !lpaa[1]) { \
925 *lpu = lrintf(c.yuv.u + 128.0f); \
926 *lpv = lrintf(c.yuv.v + 128.0f); \
927 } else if (255 == lpaa[0] && 255 == lpaa[1]) { \
928 *lpu = *lpau; *lpv = *lpav; \
929 } else { \
930 float a0 = (0.5f/255.0f) * lpaa[0]; \
931 float a1 = (0.5f/255.0f) * lpaa[1]; \
932 float b = 1.0f - a0 - a1; \
933 *lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + b * (c.yuv.u + 128.0f)); \
934 *lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + b * (c.yuv.v + 128.0f)); \
935 } \
936 lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
937} while (0)
938
939#define BLEND_CHROMA2x2(c) \
940do { \
941 if (!lpaa[0] && !lpaa[1] && !lpaa[lsaa] && !lpaa[lsaa+1]) { \
942 *lpu = lrintf(c.yuv.u + 128.0f); \
943 *lpv = lrintf(c.yuv.v + 128.0f); \
944 } else if (255 == lpaa[0] && 255 == lpaa[1] && \
945 255 == lpaa[lsaa] && 255 == lpaa[lsaa+1]) { \
946 *lpu = *lpau; *lpv = *lpav; \
947 } else { \
948 float a0 = (0.25f/255.0f) * lpaa[0]; \
949 float a1 = (0.25f/255.0f) * lpaa[1]; \
950 float a2 = (0.25f/255.0f) * lpaa[lsaa]; \
951 float a3 = (0.25f/255.0f) * lpaa[lsaa+1]; \
952 float b = 1.0f - a0 - a1 - a2 - a3; \
953 *lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + a2 * lpau[lsau] + a3 * lpau[lsau+1] \
954 + b * (c.yuv.u + 128.0f)); \
955 *lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + a2 * lpav[lsav] + a3 * lpav[lsav+1] \
956 + b * (c.yuv.v + 128.0f)); \
957 } \
958 lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
959} while (0)
960
961static void draw_axis_yuv(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
962{
963 int fmt = out->format, x, y, yh, w = axis->width, h = axis->height;
964 int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
965 uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
966 uint8_t *vay = axis->data[0], *vau = axis->data[1], *vav = axis->data[2], *vaa = axis->data[3];
967 int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
968 int lsay = axis->linesize[0], lsau = axis->linesize[1], lsav = axis->linesize[2], lsaa = axis->linesize[3];
969 uint8_t *lpy, *lpu, *lpv, *lpay, *lpau, *lpav, *lpaa;
970
971 for (y = 0; y < h; y += 2) {
972 yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
973 lpy = vy + (off + y) * lsy;
974 lpu = vu + (offh + yh) * lsu;
975 lpv = vv + (offh + yh) * lsv;
976 lpay = vay + y * lsay;
977 lpau = vau + y * lsau;
978 lpav = vav + y * lsav;
979 lpaa = vaa + y * lsaa;
980 if (fmt == AV_PIX_FMT_YUV444P) {
981 for (x = 0; x < w; x += 2) {
982 BLEND_WITH_CHROMA(c[x]);
983 BLEND_WITH_CHROMA(c[x+1]);
984 }
985 } else if (fmt == AV_PIX_FMT_YUV422P) {
986 for (x = 0; x < w; x += 2) {
987 BLEND_WITHOUT_CHROMA(c[x], 0);
988 BLEND_CHROMA2(c[x]);
989 BLEND_WITHOUT_CHROMA(c[x+1], 1);
990 }
991 } else {
992 for (x = 0; x < w; x += 2) {
993 BLEND_WITHOUT_CHROMA(c[x], 0);
994 BLEND_CHROMA2x2(c[x]);
995 BLEND_WITHOUT_CHROMA(c[x+1], 1);
996 }
997 }
998
999 lpy = vy + (off + y + 1) * lsy;
1000 lpu = vu + (off + y + 1) * lsu;
1001 lpv = vv + (off + y + 1) * lsv;
1002 lpay = vay + (y + 1) * lsay;
1003 lpau = vau + (y + 1) * lsau;
1004 lpav = vav + (y + 1) * lsav;
1005 lpaa = vaa + (y + 1) * lsaa;
1006 if (fmt == AV_PIX_FMT_YUV444P) {
1007 for (x = 0; x < w; x += 2) {
1008 BLEND_WITH_CHROMA(c[x]);
1009 BLEND_WITH_CHROMA(c[x+1]);
1010 }
1011 } else if (fmt == AV_PIX_FMT_YUV422P) {
1012 for (x = 0; x < w; x += 2) {
1013 BLEND_WITHOUT_CHROMA(c[x], 0);
1014 BLEND_CHROMA2(c[x]);
1015 BLEND_WITHOUT_CHROMA(c[x+1], 1);
1016 }
1017 } else {
1018 for (x = 0; x < w; x += 2) {
1019 BLEND_WITHOUT_CHROMA(c[x], 1);
1020 BLEND_WITHOUT_CHROMA(c[x+1], 1);
1021 }
1022 }
1023 }
1024}
1025
1026static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx)
1027{
1028 int fmt = out->format, h = sono->height;
1029 int nb_planes = (fmt == AV_PIX_FMT_RGB24) ? 1 : 3;
1030 int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
1031 int inc = (fmt == AV_PIX_FMT_YUV420P) ? 2 : 1;
1032 int ls, i, y, yh;
1033
1034 ls = FFMIN(out->linesize[0], sono->linesize[0]);
1035 for (y = 0; y < h; y++) {
1036 memcpy(out->data[0] + (off + y) * out->linesize[0],
1037 sono->data[0] + (idx + y) % h * sono->linesize[0], ls);
1038 }
1039
1040 for (i = 1; i < nb_planes; i++) {
1041 ls = FFMIN(out->linesize[i], sono->linesize[i]);
1042 for (y = 0; y < h; y += inc) {
1043 yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
1044 memcpy(out->data[i] + (offh + yh) * out->linesize[i],
1045 sono->data[i] + (idx + y) % h * sono->linesize[i], ls);
1046 }
1047 }
1048}
1049
1050static void update_sono_rgb(AVFrame *sono, const ColorFloat *c, int idx)
1051{
1052 int x, w = sono->width;
1053 uint8_t *lp = sono->data[0] + idx * sono->linesize[0];
1054
1055 for (x = 0; x < w; x++) {
1056 *lp++ = lrintf(c[x].rgb.r);
1057 *lp++ = lrintf(c[x].rgb.g);
1058 *lp++ = lrintf(c[x].rgb.b);
1059 }
1060}
1061
1062static void update_sono_yuv(AVFrame *sono, const ColorFloat *c, int idx)
1063{
1064 int x, fmt = sono->format, w = sono->width;
1065 uint8_t *lpy = sono->data[0] + idx * sono->linesize[0];
1066 uint8_t *lpu = sono->data[1] + idx * sono->linesize[1];
1067 uint8_t *lpv = sono->data[2] + idx * sono->linesize[2];
1068
1069 for (x = 0; x < w; x += 2) {
1070 *lpy++ = lrintf(c[x].yuv.y + 16.0f);
1071 *lpu++ = lrintf(c[x].yuv.u + 128.0f);
1072 *lpv++ = lrintf(c[x].yuv.v + 128.0f);
1073 *lpy++ = lrintf(c[x+1].yuv.y + 16.0f);
1074 if (fmt == AV_PIX_FMT_YUV444P) {
1075 *lpu++ = lrintf(c[x+1].yuv.u + 128.0f);
1076 *lpv++ = lrintf(c[x+1].yuv.v + 128.0f);
1077 }
1078 }
1079}
1080
1081static void process_cqt(ShowCQTContext *s)
1082{
1083 int x, i;
1084 if (!s->sono_count) {
1085 for (x = 0; x < s->cqt_len; x++) {
1086 s->h_buf[x] = s->bar_v_buf[x] * 0.5f * (s->cqt_result[x].re + s->cqt_result[x].im);
1087 }
1088 if (s->fcount > 1) {
1089 float rcp_fcount = 1.0f / s->fcount;
1090 for (x = 0; x < s->width; x++) {
1091 float h = 0.0f;
1092 for (i = 0; i < s->fcount; i++)
1093 h += s->h_buf[s->fcount * x + i];
1094 s->h_buf[x] = rcp_fcount * h;
1095 }
1096 }
1097 for (x = 0; x < s->width; x++) {
1098 s->h_buf[x] = calculate_gamma(s->h_buf[x], s->bar_g);
1099 s->rcp_h_buf[x] = 1.0f / (s->h_buf[x] + 0.0001f);
1100 }
1101 }
1102
1103 for (x = 0; x < s->cqt_len; x++) {
1104 s->cqt_result[x].re *= s->sono_v_buf[x];
1105 s->cqt_result[x].im *= s->sono_v_buf[x];
1106 }
1107
1108 if (s->fcount > 1) {
1109 float rcp_fcount = 1.0f / s->fcount;
1110 for (x = 0; x < s->width; x++) {
1111 FFTComplex result = {0.0f, 0.0f};
1112 for (i = 0; i < s->fcount; i++) {
1113 result.re += s->cqt_result[s->fcount * x + i].re;
1114 result.im += s->cqt_result[s->fcount * x + i].im;
1115 }
1116 s->cqt_result[x].re = rcp_fcount * result.re;
1117 s->cqt_result[x].im = rcp_fcount * result.im;
1118 }
1119 }
1120
1121 if (s->format == AV_PIX_FMT_RGB24)
1122 rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cscheme_v);
1123 else
1124 yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cmatrix, s->cscheme_v);
1125}
1126
1127static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
1128{
1129 AVFilterLink *outlink = ctx->outputs[0];
1130 ShowCQTContext *s = ctx->priv;
1131 int64_t last_time, cur_time;
1132
1133#define UPDATE_TIME(t) \
1134 cur_time = av_gettime(); \
1135 t += cur_time - last_time; \
1136 last_time = cur_time
1137
1138 last_time = av_gettime();
1139
1140 memcpy(s->fft_result, s->fft_data, s->fft_len * sizeof(*s->fft_data));
1141 av_fft_permute(s->fft_ctx, s->fft_result);
1142 av_fft_calc(s->fft_ctx, s->fft_result);
1143 s->fft_result[s->fft_len] = s->fft_result[0];
1144 UPDATE_TIME(s->fft_time);
1145
1146 s->cqt_calc(s->cqt_result, s->fft_result, s->coeffs, s->cqt_len, s->fft_len);
1147 UPDATE_TIME(s->cqt_time);
1148
1149 process_cqt(s);
1150 UPDATE_TIME(s->process_cqt_time);
1151
1152 if (s->sono_h) {
1153 s->update_sono(s->sono_frame, s->c_buf, s->sono_idx);
1154 UPDATE_TIME(s->update_sono_time);
1155 }
1156
1157 if (!s->sono_count) {
1158 AVFrame *out = *frameout = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1159 if (!out)
1160 return AVERROR(ENOMEM);
1161 out->sample_aspect_ratio = av_make_q(1, 1);
1162 av_frame_set_color_range(out, AVCOL_RANGE_MPEG);
1163 av_frame_set_colorspace(out, s->csp);
1164 UPDATE_TIME(s->alloc_time);
1165
1166 if (s->bar_h) {
1167 s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h, s->bar_t);
1168 UPDATE_TIME(s->bar_time);
1169 }
1170
1171 if (s->axis_h) {
1172 s->draw_axis(out, s->axis_frame, s->c_buf, s->bar_h);
1173 UPDATE_TIME(s->axis_time);
1174 }
1175
1176 if (s->sono_h) {
1177 s->draw_sono(out, s->sono_frame, s->bar_h + s->axis_h, s->sono_idx);
1178 UPDATE_TIME(s->sono_time);
1179 }
1180 out->pts = s->next_pts;
1181 s->next_pts += PTS_STEP;
1182 }
1183 s->sono_count = (s->sono_count + 1) % s->count;
1184 if (s->sono_h)
1185 s->sono_idx = (s->sono_idx + s->sono_h - 1) % s->sono_h;
1186 return 0;
1187}
1188
1189static void init_colormatrix(ShowCQTContext *s)
1190{
1191 double kr, kg, kb;
1192
1193 /* from vf_colorspace.c */
1194 switch (s->csp) {
1195 default:
1196 av_log(s->ctx, AV_LOG_WARNING, "unsupported colorspace, setting it to unspecified.\n");
1197 s->csp = AVCOL_SPC_UNSPECIFIED;
1198 case AVCOL_SPC_UNSPECIFIED:
1199 case AVCOL_SPC_BT470BG:
1200 case AVCOL_SPC_SMPTE170M:
1201 kr = 0.299; kb = 0.114; break;
1202 case AVCOL_SPC_BT709:
1203 kr = 0.2126; kb = 0.0722; break;
1204 case AVCOL_SPC_FCC:
1205 kr = 0.30; kb = 0.11; break;
1206 case AVCOL_SPC_SMPTE240M:
1207 kr = 0.212; kb = 0.087; break;
1208 case AVCOL_SPC_BT2020_NCL:
1209 kr = 0.2627; kb = 0.0593; break;
1210 }
1211
1212 kg = 1.0 - kr - kb;
1213 s->cmatrix[0][0] = 219.0 * kr;
1214 s->cmatrix[0][1] = 219.0 * kg;
1215 s->cmatrix[0][2] = 219.0 * kb;
1216 s->cmatrix[1][0] = -112.0 * kr / (1.0 - kb);
1217 s->cmatrix[1][1] = -112.0 * kg / (1.0 - kb);
1218 s->cmatrix[1][2] = 112.0;
1219 s->cmatrix[2][0] = 112.0;
1220 s->cmatrix[2][1] = -112.0 * kg / (1.0 - kr);
1221 s->cmatrix[2][2] = -112.0 * kb / (1.0 - kr);
1222}
1223
1224static int init_cscheme(ShowCQTContext *s)
1225{
1226 char tail[2];
1227 int k;
1228
1229 if (sscanf(s->cscheme, " %f | %f | %f | %f | %f | %f %1s", &s->cscheme_v[0],
1230 &s->cscheme_v[1], &s->cscheme_v[2], &s->cscheme_v[3], &s->cscheme_v[4],
1231 &s->cscheme_v[5], tail) != 6)
1232 goto fail;
1233
1234 for (k = 0; k < 6; k++)
1235 if (isnan(s->cscheme_v[k]) || s->cscheme_v[k] < 0.0f || s->cscheme_v[k] > 1.0f)
1236 goto fail;
1237
1238 return 0;
1239
1240fail:
1241 av_log(s->ctx, AV_LOG_ERROR, "invalid cscheme.\n");
1242 return AVERROR(EINVAL);
1243}
1244
1245/* main filter control */
1246static av_cold int init(AVFilterContext *ctx)
1247{
1248 ShowCQTContext *s = ctx->priv;
1249 s->ctx = ctx;
1250
1251 if (!s->fullhd) {
1252 av_log(ctx, AV_LOG_WARNING, "fullhd option is deprecated, use size/s option instead.\n");
1253 if (s->width != 1920 || s->height != 1080) {
1254 av_log(ctx, AV_LOG_ERROR, "fullhd set to 0 but with custom dimension.\n");
1255 return AVERROR(EINVAL);
1256 }
1257 s->width /= 2;
1258 s->height /= 2;
1259 s->fullhd = 1;
1260 }
1261
1262 if (s->axis_h < 0) {
1263 s->axis_h = s->width / 60;
1264 if (s->axis_h & 1)
1265 s->axis_h++;
1266 if (s->bar_h >= 0 && s->sono_h >= 0)
1267 s->axis_h = s->height - s->bar_h - s->sono_h;
1268 if (s->bar_h >= 0 && s->sono_h < 0)
1269 s->axis_h = FFMIN(s->axis_h, s->height - s->bar_h);
1270 if (s->bar_h < 0 && s->sono_h >= 0)
1271 s->axis_h = FFMIN(s->axis_h, s->height - s->sono_h);
1272 }
1273
1274 if (s->bar_h < 0) {
1275 s->bar_h = (s->height - s->axis_h) / 2;
1276 if (s->bar_h & 1)
1277 s->bar_h--;
1278 if (s->sono_h >= 0)
1279 s->bar_h = s->height - s->sono_h - s->axis_h;
1280 }
1281
1282 if (s->sono_h < 0)
1283 s->sono_h = s->height - s->axis_h - s->bar_h;
1284
1285 if ((s->width & 1) || (s->height & 1) || (s->bar_h & 1) || (s->axis_h & 1) || (s->sono_h & 1) ||
1286 (s->bar_h < 0) || (s->axis_h < 0) || (s->sono_h < 0) || (s->bar_h > s->height) ||
1287 (s->axis_h > s->height) || (s->sono_h > s->height) || (s->bar_h + s->axis_h + s->sono_h != s->height)) {
1288 av_log(ctx, AV_LOG_ERROR, "invalid dimension.\n");
1289 return AVERROR(EINVAL);
1290 }
1291
1292 if (!s->fcount) {
1293 do {
1294 s->fcount++;
1295 } while(s->fcount * s->width < 1920 && s->fcount < 10);
1296 }
1297
1298 init_colormatrix(s);
1299
1300 return init_cscheme(s);
1301}
1302
1303static av_cold void uninit(AVFilterContext *ctx)
1304{
1305 common_uninit(ctx->priv);
1306}
1307
1308static int query_formats(AVFilterContext *ctx)
1309{
1310 AVFilterFormats *formats = NULL;
1311 AVFilterChannelLayouts *layouts = NULL;
1312 AVFilterLink *inlink = ctx->inputs[0];
1313 AVFilterLink *outlink = ctx->outputs[0];
1314 enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_NONE };
1315 enum AVPixelFormat pix_fmts[] = {
1316 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
1317 AV_PIX_FMT_YUV444P, AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
1318 };
1319 int64_t channel_layouts[] = { AV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO_DOWNMIX, -1 };
1320 int ret;
1321
1322 /* set input audio formats */
1323 formats = ff_make_format_list(sample_fmts);
1324 if ((ret = ff_formats_ref(formats, &inlink->out_formats)) < 0)
1325 return ret;
1326
1327 layouts = avfilter_make_format64_list(channel_layouts);
1328 if ((ret = ff_channel_layouts_ref(layouts, &inlink->out_channel_layouts)) < 0)
1329 return ret;
1330
1331 formats = ff_all_samplerates();
1332 if ((ret = ff_formats_ref(formats, &inlink->out_samplerates)) < 0)
1333 return ret;
1334
1335 /* set output video format */
1336 formats = ff_make_format_list(pix_fmts);
1337 if ((ret = ff_formats_ref(formats, &outlink->in_formats)) < 0)
1338 return ret;
1339
1340 return 0;
1341}
1342
1343static int config_output(AVFilterLink *outlink)
1344{
1345 AVFilterContext *ctx = outlink->src;
1346 AVFilterLink *inlink = ctx->inputs[0];
1347 ShowCQTContext *s = ctx->priv;
1348 int ret;
1349
1350 common_uninit(s);
1351
1352 outlink->w = s->width;
1353 outlink->h = s->height;
1354 s->format = outlink->format;
1355 outlink->sample_aspect_ratio = av_make_q(1, 1);
1356 outlink->frame_rate = s->rate;
1357 outlink->time_base = av_mul_q(av_inv_q(s->rate), av_make_q(1, PTS_STEP));
1358 av_log(ctx, AV_LOG_INFO, "video: %dx%d %s %d/%d fps, bar_h = %d, axis_h = %d, sono_h = %d.\n",
1359 s->width, s->height, av_get_pix_fmt_name(s->format), s->rate.num, s->rate.den,
1360 s->bar_h, s->axis_h, s->sono_h);
1361
1362 s->cqt_len = s->width * s->fcount;
1363 if (!(s->freq = create_freq_table(s->basefreq, s->endfreq, s->cqt_len)))
1364 return AVERROR(ENOMEM);
1365
1366 if ((ret = init_volume(s)) < 0)
1367 return ret;
1368
1369 s->fft_bits = FFMAX(ceil(log2(inlink->sample_rate * s->timeclamp)), 4);
1370 s->fft_len = 1 << s->fft_bits;
1371 av_log(ctx, AV_LOG_INFO, "fft_len = %d, cqt_len = %d.\n", s->fft_len, s->cqt_len);
1372
1373 s->fft_ctx = av_fft_init(s->fft_bits, 0);
1374 s->fft_data = av_calloc(s->fft_len, sizeof(*s->fft_data));
1375 s->fft_result = av_calloc(s->fft_len + 64, sizeof(*s->fft_result));
1376 s->cqt_result = av_malloc_array(s->cqt_len, sizeof(*s->cqt_result));
1377 if (!s->fft_ctx || !s->fft_data || !s->fft_result || !s->cqt_result)
1378 return AVERROR(ENOMEM);
1379
1380 s->cqt_align = 1;
1381 s->cqt_calc = cqt_calc;
1382 s->permute_coeffs = NULL;
1383 s->draw_sono = draw_sono;
1384 if (s->format == AV_PIX_FMT_RGB24) {
1385 s->draw_bar = draw_bar_rgb;
1386 s->draw_axis = draw_axis_rgb;
1387 s->update_sono = update_sono_rgb;
1388 } else {
1389 s->draw_bar = draw_bar_yuv;
1390 s->draw_axis = draw_axis_yuv;
1391 s->update_sono = update_sono_yuv;
1392 }
1393
1394 if (ARCH_X86)
1395 ff_showcqt_init_x86(s);
1396
1397 if ((ret = init_cqt(s)) < 0)
1398 return ret;
1399
1400 if (s->axis_h) {
1401 if (!s->axis) {
1402 if ((ret = init_axis_empty(s)) < 0)
1403 return ret;
1404 } else if (s->axisfile) {
1405 if (init_axis_from_file(s) < 0) {
1406 av_log(ctx, AV_LOG_WARNING, "loading axis image failed, fallback to font rendering.\n");
1407 if (init_axis_from_font(s) < 0) {
1408 av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1409 if ((ret = init_axis_empty(s)) < 0)
1410 return ret;
1411 }
1412 }
1413 } else {
1414 if (init_axis_from_font(s) < 0) {
1415 av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1416 if ((ret = init_axis_empty(s)) < 0)
1417 return ret;
1418 }
1419 }
1420 }
1421
1422 if (s->sono_h) {
1423 s->sono_frame = alloc_frame_empty((outlink->format == AV_PIX_FMT_YUV420P) ?
1424 AV_PIX_FMT_YUV422P : outlink->format, s->width, s->sono_h);
1425 if (!s->sono_frame)
1426 return AVERROR(ENOMEM);
1427 }
1428
1429 s->h_buf = av_malloc_array(s->cqt_len, sizeof (*s->h_buf));
1430 s->rcp_h_buf = av_malloc_array(s->width, sizeof(*s->rcp_h_buf));
1431 s->c_buf = av_malloc_array(s->width, sizeof(*s->c_buf));
1432 if (!s->h_buf || !s->rcp_h_buf || !s->c_buf)
1433 return AVERROR(ENOMEM);
1434
1435 s->sono_count = 0;
1436 s->next_pts = 0;
1437 s->sono_idx = 0;
1438 s->remaining_fill = s->fft_len / 2;
1439 s->remaining_frac = 0;
1440 s->step_frac = av_div_q(av_make_q(inlink->sample_rate, s->count) , s->rate);
1441 s->step = (int)(s->step_frac.num / s->step_frac.den);
1442 s->step_frac.num %= s->step_frac.den;
1443 if (s->step_frac.num) {
1444 av_log(ctx, AV_LOG_INFO, "audio: %d Hz, step = %d + %d/%d.\n",
1445 inlink->sample_rate, s->step, s->step_frac.num, s->step_frac.den);
1446 av_log(ctx, AV_LOG_WARNING, "fractional step.\n");
1447 } else {
1448 av_log(ctx, AV_LOG_INFO, "audio: %d Hz, step = %d.\n",
1449 inlink->sample_rate, s->step);
1450 }
1451
1452 return 0;
1453}
1454
1455
1456static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
1457{
1458 AVFilterContext *ctx = inlink->dst;
1459 AVFilterLink *outlink = ctx->outputs[0];
1460 ShowCQTContext *s = ctx->priv;
1461 int remaining, step, ret, x, i, j, m;
1462 float *audio_data;
1463 AVFrame *out = NULL;
1464
1465 if (!insamples) {
1466 while (s->remaining_fill < s->fft_len / 2) {
1467 memset(&s->fft_data[s->fft_len - s->remaining_fill], 0, sizeof(*s->fft_data) * s->remaining_fill);
1468 ret = plot_cqt(ctx, &out);
1469 if (ret < 0)
1470 return ret;
1471
1472 step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1473 s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1474 for (x = 0; x < (s->fft_len-step); x++)
1475 s->fft_data[x] = s->fft_data[x+step];
1476 s->remaining_fill += step;
1477
1478 if (out)
1479 return ff_filter_frame(outlink, out);
1480 }
1481 return AVERROR_EOF;
1482 }
1483
1484 remaining = insamples->nb_samples;
1485 audio_data = (float*) insamples->data[0];
1486
1487 while (remaining) {
1488 i = insamples->nb_samples - remaining;
1489 j = s->fft_len - s->remaining_fill;
1490 if (remaining >= s->remaining_fill) {
1491 for (m = 0; m < s->remaining_fill; m++) {
1492 s->fft_data[j+m].re = audio_data[2*(i+m)];
1493 s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1494 }
1495 ret = plot_cqt(ctx, &out);
1496 if (ret < 0) {
1497 av_frame_free(&insamples);
1498 return ret;
1499 }
1500 remaining -= s->remaining_fill;
1501 if (out) {
1502 int64_t pts = av_rescale_q(insamples->pts, inlink->time_base, av_make_q(1, inlink->sample_rate));
1503 pts += insamples->nb_samples - remaining - s->fft_len/2;
1504 pts = av_rescale_q(pts, av_make_q(1, inlink->sample_rate), outlink->time_base);
1505 if (FFABS(pts - out->pts) > PTS_TOLERANCE) {
1506 av_log(ctx, AV_LOG_DEBUG, "changing pts from %"PRId64" (%.3f) to %"PRId64" (%.3f).\n",
1507 out->pts, out->pts * av_q2d(outlink->time_base),
1508 pts, pts * av_q2d(outlink->time_base));
1509 out->pts = pts;
1510 s->next_pts = pts + PTS_STEP;
1511 }
1512 ret = ff_filter_frame(outlink, out);
1513 if (ret < 0) {
1514 av_frame_free(&insamples);
1515 return ret;
1516 }
1517 out = NULL;
1518 }
1519 step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1520 s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1521 for (m = 0; m < s->fft_len-step; m++)
1522 s->fft_data[m] = s->fft_data[m+step];
1523 s->remaining_fill = step;
1524 } else {
1525 for (m = 0; m < remaining; m++) {
1526 s->fft_data[j+m].re = audio_data[2*(i+m)];
1527 s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1528 }
1529 s->remaining_fill -= remaining;
1530 remaining = 0;
1531 }
1532 }
1533 av_frame_free(&insamples);
1534 return 0;
1535}
1536
1537static int request_frame(AVFilterLink *outlink)
1538{
1539 AVFilterLink *inlink = outlink->src->inputs[0];
1540 int ret;
1541
1542 ret = ff_request_frame(inlink);
1543 if (ret == AVERROR_EOF)
1544 ret = filter_frame(inlink, NULL);
1545 return ret;
1546}
1547
1548static const AVFilterPad showcqt_inputs[] = {
1549 {
1550 .name = "default",
1551 .type = AVMEDIA_TYPE_AUDIO,
1552 .filter_frame = filter_frame,
1553 },
1554 { NULL }
1555};
1556
1557static const AVFilterPad showcqt_outputs[] = {
1558 {
1559 .name = "default",
1560 .type = AVMEDIA_TYPE_VIDEO,
1561 .config_props = config_output,
1562 .request_frame = request_frame,
1563 },
1564 { NULL }
1565};
1566
1567AVFilter ff_avf_showcqt = {
1568 .name = "showcqt",
1569 .description = NULL_IF_CONFIG_SMALL("Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output."),
1570 .init = init,
1571 .uninit = uninit,
1572 .query_formats = query_formats,
1573 .priv_size = sizeof(ShowCQTContext),
1574 .inputs = showcqt_inputs,
1575 .outputs = showcqt_outputs,
1576 .priv_class = &showcqt_class,
1577};
1578
generated by cgit at 2024-05-17 04:13:55 (GMT)