FFmpeg coverage

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