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/attributes.h"
23			#include "libavutil/mem.h"
24			#include "libavutil/tx.h"
25			#include "libavutil/channel_layout.h"
26			#include "libavutil/opt.h"
27			#include "libavutil/xga_font_data.h"
28			#include "libavutil/eval.h"
29			#include "libavutil/pixdesc.h"
30			#include "libavutil/time.h"
31			#include "audio.h"
32			#include "avfilter.h"
33			#include "filters.h"
34			#include "formats.h"
35			#include "lavfutils.h"
36			#include "lswsutils.h"
37			#include "video.h"
38
39			#if CONFIG_LIBFREETYPE
40			#include <ft2build.h>
41			#include FT_FREETYPE_H
42			#endif
43
44			#if CONFIG_LIBFONTCONFIG
45			#include <fontconfig/fontconfig.h>
46			#endif
47
48			#include "avf_showcqt.h"
49
50			#define BASEFREQ 20.01523126408007475
51			#define ENDFREQ 20495.59681441799654
52			#define TLENGTH "384*tc/(384+tc*f)"
53			#define TLENGTH_MIN 0.001
54			#define VOLUME_MAX 100.0
55			#define FONTCOLOR "st(0, (midi(f)-59.5)/12);" \
56			"st(1, if(between(ld(0),0,1), 0.5-0.5*cos(2*PI*ld(0)), 0));" \
57			"r(1-ld(1)) + b(ld(1))"
58			#define CSCHEME "1|0.5|0|0|0.5|1"
59
60			#define OFFSET(x) offsetof(ShowCQTContext, x)
61			#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
62
63			static const AVOption showcqt_options[] = {
64			{ "size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
65			{ "s", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
66			{ "fps", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
67			{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
68			{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
69			{ "bar_h", "set bargraph height", OFFSET(bar_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
70			{ "axis_h", "set axis height", OFFSET(axis_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
71			{ "sono_h", "set sonogram height", OFFSET(sono_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
72			{ "fullhd", "set fullhd size", OFFSET(fullhd), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
73			{ "sono_v", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, 0, 0, FLAGS },
74			{ "volume", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, 0, 0, FLAGS },
75			{ "bar_v", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, 0, 0, FLAGS },
76			{ "volume2", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, 0, 0, FLAGS },
77			{ "sono_g", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
78			{ "gamma", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
79			{ "bar_g", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
80			{ "gamma2", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
81			{ "bar_t", "set bar transparency", OFFSET(bar_t), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, FLAGS },
82			{ "timeclamp", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
83			{ "tc", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
84			{ "attack", "set attack time", OFFSET(attack), AV_OPT_TYPE_DOUBLE, { .dbl = 0 }, 0.0, 1.0, FLAGS },
85			{ "basefreq", "set base frequency", OFFSET(basefreq), AV_OPT_TYPE_DOUBLE, { .dbl = BASEFREQ }, 10.0, 100000.0, FLAGS },
86			{ "endfreq", "set end frequency", OFFSET(endfreq), AV_OPT_TYPE_DOUBLE, { .dbl = ENDFREQ }, 10.0, 100000.0, FLAGS },
87			{ "coeffclamp", "set coeffclamp", OFFSET(coeffclamp), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.1, 10.0, FLAGS },
88			{ "tlength", "set tlength", OFFSET(tlength), AV_OPT_TYPE_STRING, { .str = TLENGTH }, 0, 0, FLAGS },
89			{ "count", "set transform count", OFFSET(count), AV_OPT_TYPE_INT, { .i64 = 6 }, 1, 30, FLAGS },
90			{ "fcount", "set frequency count", OFFSET(fcount), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, FLAGS },
91			{ "fontfile", "set axis font file", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
92			{ "font", "set axis font", OFFSET(font), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
93			{ "fontcolor", "set font color", OFFSET(fontcolor), AV_OPT_TYPE_STRING, { .str = FONTCOLOR }, 0, 0, FLAGS },
94			{ "axisfile", "set axis image", OFFSET(axisfile), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
95			{ "axis", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
96			{ "text", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
97			{ "csp", "set color space", OFFSET(csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, FLAGS, .unit = "csp" },
98			{ "unspecified", "unspecified", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, 0, FLAGS, .unit = "csp" },
99			{ "bt709", "bt709", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT709 }, 0, 0, FLAGS, .unit = "csp" },
100			{ "fcc", "fcc", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_FCC }, 0, 0, FLAGS, .unit = "csp" },
101			{ "bt470bg", "bt470bg", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT470BG }, 0, 0, FLAGS, .unit = "csp" },
102			{ "smpte170m", "smpte170m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE170M }, 0, 0, FLAGS, .unit = "csp" },
103			{ "smpte240m", "smpte240m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE240M }, 0, 0, FLAGS, .unit = "csp" },
104			{ "bt2020ncl", "bt2020ncl", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT2020_NCL }, 0, 0, FLAGS, .unit = "csp" },
105			{ "cscheme", "set color scheme", OFFSET(cscheme), AV_OPT_TYPE_STRING, { .str = CSCHEME }, 0, 0, FLAGS },
106			{ NULL }
107			};
108
109			AVFILTER_DEFINE_CLASS(showcqt);
110
111		✗	static void common_uninit(ShowCQTContext *s)
112			{
113			int k;
114		✗	int level = AV_LOG_DEBUG;
115			int64_t plot_time;
116
117		✗	if (s->fft_time)
118		✗	av_log(s->ctx, level, "fft_time = %16.3f s.\n", s->fft_time * 1e-6);
119		✗	if (s->cqt_time)
120		✗	av_log(s->ctx, level, "cqt_time = %16.3f s.\n", s->cqt_time * 1e-6);
121		✗	if (s->process_cqt_time)
122		✗	av_log(s->ctx, level, "process_cqt_time = %16.3f s.\n", s->process_cqt_time * 1e-6);
123		✗	if (s->update_sono_time)
124		✗	av_log(s->ctx, level, "update_sono_time = %16.3f s.\n", s->update_sono_time * 1e-6);
125		✗	if (s->alloc_time)
126		✗	av_log(s->ctx, level, "alloc_time = %16.3f s.\n", s->alloc_time * 1e-6);
127		✗	if (s->bar_time)
128		✗	av_log(s->ctx, level, "bar_time = %16.3f s.\n", s->bar_time * 1e-6);
129		✗	if (s->axis_time)
130		✗	av_log(s->ctx, level, "axis_time = %16.3f s.\n", s->axis_time * 1e-6);
131		✗	if (s->sono_time)
132		✗	av_log(s->ctx, level, "sono_time = %16.3f s.\n", s->sono_time * 1e-6);
133
134		✗	plot_time = s->fft_time + s->cqt_time + s->process_cqt_time + s->update_sono_time
135		✗	+ s->alloc_time + s->bar_time + s->axis_time + s->sono_time;
136		✗	if (plot_time)
137		✗	av_log(s->ctx, level, "plot_time = %16.3f s.\n", plot_time * 1e-6);
138
139		✗	s->fft_time = s->cqt_time = s->process_cqt_time = s->update_sono_time
140		✗	= s->alloc_time = s->bar_time = s->axis_time = s->sono_time = 0;
141			/* axis_frame may be non reference counted frame */
142		✗	if (s->axis_frame && !s->axis_frame->buf[0]) {
143		✗	av_freep(s->axis_frame->data);
144		✗	for (k = 0; k < 4; k++)
145		✗	s->axis_frame->data[k] = NULL;
146			}
147
148		✗	av_frame_free(&s->axis_frame);
149		✗	av_frame_free(&s->sono_frame);
150		✗	av_tx_uninit(&s->fft_ctx);
151		✗	if (s->coeffs)
152		✗	for (k = 0; k < s->cqt_len; k++)
153		✗	av_freep(&s->coeffs[k].val);
154		✗	av_freep(&s->coeffs);
155		✗	av_freep(&s->fft_data);
156		✗	av_freep(&s->fft_input);
157		✗	av_freep(&s->fft_result);
158		✗	av_freep(&s->cqt_result);
159		✗	av_freep(&s->attack_data);
160		✗	av_freep(&s->c_buf);
161		✗	av_freep(&s->h_buf);
162		✗	av_freep(&s->rcp_h_buf);
163		✗	av_freep(&s->freq);
164		✗	av_freep(&s->sono_v_buf);
165		✗	av_freep(&s->bar_v_buf);
166		✗	}
167
168		✗	static double *create_freq_table(double base, double end, int n)
169			{
170			double log_base, log_end;
171		✗	double rcp_n = 1.0 / n;
172			double *freq;
173			int x;
174
175		✗	freq = av_malloc_array(n, sizeof(*freq));
176		✗	if (!freq)
177		✗	return NULL;
178
179		✗	log_base = log(base);
180		✗	log_end = log(end);
181		✗	for (x = 0; x < n; x++) {
182		✗	double log_freq = log_base + (x + 0.5) * (log_end - log_base) * rcp_n;
183		✗	freq[x] = exp(log_freq);
184			}
185		✗	return freq;
186			}
187
188		✗	static double clip_with_log(void *log_ctx, const char *name,
189			double val, double min, double max,
190			double nan_replace, int idx)
191			{
192		✗	int level = AV_LOG_WARNING;
193		✗	if (isnan(val)) {
194		✗	av_log(log_ctx, level, "[%d] %s is nan, setting it to %g.\n",
195			idx, name, nan_replace);
196		✗	val = nan_replace;
197		✗	} else if (val < min) {
198		✗	av_log(log_ctx, level, "[%d] %s is too low (%g), setting it to %g.\n",
199			idx, name, val, min);
200		✗	val = min;
201		✗	} else if (val > max) {
202		✗	av_log(log_ctx, level, "[%d] %s it too high (%g), setting it to %g.\n",
203			idx, name, val, max);
204		✗	val = max;
205			}
206		✗	return val;
207			}
208
209		✗	static double a_weighting(void *p, double f)
210			{
211		✗	double ret = 12200.0*12200.0 * (f*f*f*f);
212		✗	ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) *
213		✗	sqrt((f*f + 107.7*107.7) * (f*f + 737.9*737.9));
214		✗	return ret;
215			}
216
217		✗	static double b_weighting(void *p, double f)
218			{
219		✗	double ret = 12200.0*12200.0 * (f*f*f);
220		✗	ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * sqrt(f*f + 158.5*158.5);
221		✗	return ret;
222			}
223
224		✗	static double c_weighting(void *p, double f)
225			{
226		✗	double ret = 12200.0*12200.0 * (f*f);
227		✗	ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0);
228		✗	return ret;
229			}
230
231		✗	static int init_volume(ShowCQTContext *s)
232			{
233		✗	const char *func_names[] = { "a_weighting", "b_weighting", "c_weighting", NULL };
234		✗	const char *sono_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "bar_v", NULL };
235		✗	const char *bar_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "sono_v", NULL };
236		✗	double (*funcs[])(void *, double) = { a_weighting, b_weighting, c_weighting };
237		✗	AVExpr *sono = NULL, *bar = NULL;
238		✗	int x, ret = AVERROR(ENOMEM);
239
240		✗	s->sono_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->sono_v_buf));
241		✗	s->bar_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->bar_v_buf));
242		✗	if (!s->sono_v_buf || !s->bar_v_buf)
243		✗	goto error;
244
245		✗	if ((ret = av_expr_parse(&sono, s->sono_v, sono_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
246		✗	goto error;
247
248		✗	if ((ret = av_expr_parse(&bar, s->bar_v, bar_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
249		✗	goto error;
250
251		✗	for (x = 0; x < s->cqt_len; x++) {
252		✗	double vars[] = { s->timeclamp, s->timeclamp, s->freq[x], s->freq[x], s->freq[x], 0.0 };
253		✗	double vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
254		✗	vars[5] = vol;
255		✗	vol = clip_with_log(s->ctx, "bar_v", av_expr_eval(bar, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
256		✗	s->bar_v_buf[x] = vol * vol;
257		✗	vars[5] = vol;
258		✗	vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
259		✗	s->sono_v_buf[x] = vol * vol;
260			}
261		✗	av_expr_free(sono);
262		✗	av_expr_free(bar);
263		✗	return 0;
264
265		✗	error:
266		✗	av_freep(&s->sono_v_buf);
267		✗	av_freep(&s->bar_v_buf);
268		✗	av_expr_free(sono);
269		✗	av_expr_free(bar);
270		✗	return ret;
271			}
272
273		✗	static void cqt_calc(AVComplexFloat *dst, const AVComplexFloat *src, const Coeffs *coeffs,
274			int len, int fft_len)
275			{
276			int k, x, i, j;
277		✗	for (k = 0; k < len; k++) {
278		✗	AVComplexFloat l, r, a = {0,0}, b = {0,0};
279
280		✗	for (x = 0; x < coeffs[k].len; x++) {
281		✗	float u = coeffs[k].val[x];
282		✗	i = coeffs[k].start + x;
283		✗	j = fft_len - i;
284		✗	a.re += u * src[i].re;
285		✗	a.im += u * src[i].im;
286		✗	b.re += u * src[j].re;
287		✗	b.im += u * src[j].im;
288			}
289
290			/* separate left and right, (and multiply by 2.0) */
291		✗	l.re = a.re + b.re;
292		✗	l.im = a.im - b.im;
293		✗	r.re = b.im + a.im;
294		✗	r.im = b.re - a.re;
295		✗	dst[k].re = l.re * l.re + l.im * l.im;
296		✗	dst[k].im = r.re * r.re + r.im * r.im;
297			}
298		✗	}
299
300		✗	static int init_cqt(ShowCQTContext *s)
301			{
302		✗	const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
303		✗	AVExpr *expr = NULL;
304		✗	int rate = s->ctx->inputs[0]->sample_rate;
305		✗	int nb_cqt_coeffs = 0;
306			int k, x, ret;
307
308		✗	if ((ret = av_expr_parse(&expr, s->tlength, var_names, NULL, NULL, NULL, NULL, 0, s->ctx)) < 0)
309		✗	goto error;
310
311		✗	ret = AVERROR(ENOMEM);
312		✗	if (!(s->coeffs = av_calloc(s->cqt_len, sizeof(*s->coeffs))))
313		✗	goto error;
314
315		✗	for (k = 0; k < s->cqt_len; k++) {
316		✗	double vars[] = { s->timeclamp, s->timeclamp, s->freq[k], s->freq[k], s->freq[k] };
317			double flen, center, tlength;
318		✗	int start, end, m = k;
319
320		✗	if (s->freq[k] > 0.5 * rate)
321		✗	continue;
322		✗	tlength = clip_with_log(s->ctx, "tlength", av_expr_eval(expr, vars, NULL),
323			TLENGTH_MIN, s->timeclamp, s->timeclamp, k);
324
325		✗	flen = 8.0 * s->fft_len / (tlength * rate);
326		✗	center = s->freq[k] * s->fft_len / rate;
327		✗	start = FFMAX(0, ceil(center - 0.5 * flen));
328		✗	end = FFMIN(s->fft_len, floor(center + 0.5 * flen));
329
330		✗	s->coeffs[m].start = start & ~(s->cqt_align - 1);
331		✗	s->coeffs[m].len = (end | (s->cqt_align - 1)) + 1 - s->coeffs[m].start;
332		✗	nb_cqt_coeffs += s->coeffs[m].len;
333		✗	if (!(s->coeffs[m].val = av_calloc(s->coeffs[m].len, sizeof(*s->coeffs[m].val))))
334		✗	goto error;
335
336		✗	for (x = start; x <= end; x++) {
337		✗	int sign = (x & 1) ? (-1) : 1;
338		✗	double y = 2.0 * M_PI * (x - center) * (1.0 / flen);
339			/* nuttall window */
340		✗	double w = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
341		✗	w *= sign * (1.0 / s->fft_len);
342		✗	s->coeffs[m].val[x - s->coeffs[m].start] = w;
343			}
344
345		✗	if (s->permute_coeffs)
346		✗	s->permute_coeffs(s->coeffs[m].val, s->coeffs[m].len);
347			}
348
349		✗	av_expr_free(expr);
350		✗	av_log(s->ctx, AV_LOG_VERBOSE, "nb_cqt_coeffs = %d.\n", nb_cqt_coeffs);
351		✗	return 0;
352
353		✗	error:
354		✗	av_expr_free(expr);
355		✗	if (s->coeffs)
356		✗	for (k = 0; k < s->cqt_len; k++)
357		✗	av_freep(&s->coeffs[k].val);
358		✗	av_freep(&s->coeffs);
359		✗	return ret;
360			}
361
362		✗	static AVFrame *alloc_frame_empty(enum AVPixelFormat format, int w, int h)
363			{
364			AVFrame *out;
365		✗	out = av_frame_alloc();
366		✗	if (!out)
367		✗	return NULL;
368		✗	out->format = format;
369		✗	out->width = w;
370		✗	out->height = h;
371		✗	if (av_frame_get_buffer(out, 0) < 0) {
372		✗	av_frame_free(&out);
373		✗	return NULL;
374			}
375		✗	if (format == AV_PIX_FMT_RGB24 || format == AV_PIX_FMT_RGBA) {
376		✗	memset(out->data[0], 0, out->linesize[0] * h);
377			} else {
378		✗	int hh = (format == AV_PIX_FMT_YUV420P || format == AV_PIX_FMT_YUVA420P) ? h / 2 : h;
379		✗	memset(out->data[0], 16, out->linesize[0] * h);
380		✗	memset(out->data[1], 128, out->linesize[1] * hh);
381		✗	memset(out->data[2], 128, out->linesize[2] * hh);
382		✗	if (out->data[3])
383		✗	memset(out->data[3], 0, out->linesize[3] * h);
384			}
385		✗	return out;
386			}
387
388		✗	static enum AVPixelFormat convert_axis_pixel_format(enum AVPixelFormat format)
389			{
390		✗	switch (format) {
391		✗	case AV_PIX_FMT_RGB24: format = AV_PIX_FMT_RGBA; break;
392		✗	case AV_PIX_FMT_YUV444P:
393			case AV_PIX_FMT_YUV422P:
394		✗	case AV_PIX_FMT_YUV420P: format = AV_PIX_FMT_YUVA444P; break;
395			}
396		✗	return format;
397			}
398
399		✗	static int init_axis_empty(ShowCQTContext *s)
400			{
401		✗	if (!(s->axis_frame = alloc_frame_empty(convert_axis_pixel_format(s->format), s->width, s->axis_h)))
402		✗	return AVERROR(ENOMEM);
403		✗	return 0;
404			}
405
406		✗	static int init_axis_from_file(ShowCQTContext *s)
407			{
408			AVFrame *tmp_frame;
409		✗	int ret = ff_load_image(&tmp_frame, s->axisfile, s->ctx);
410		✗	if (ret < 0)
411		✗	return ret;
412
413		✗	ret = AVERROR(ENOMEM);
414		✗	if (!(s->axis_frame = av_frame_alloc()))
415		✗	goto error;
416
417		✗	ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
418			convert_axis_pixel_format(s->format),
419		✗	tmp_frame->data, tmp_frame->linesize, tmp_frame->width, tmp_frame->height,
420		✗	tmp_frame->format, s->ctx);
421		✗	if (ret < 0) {
422		✗	av_frame_free(&s->axis_frame);
423		✗	goto error;
424			}
425
426		✗	s->axis_frame->width = s->width;
427		✗	s->axis_frame->height = s->axis_h;
428		✗	s->axis_frame->format = convert_axis_pixel_format(s->format);
429
430		✗	ret = 0;
431		✗	error:
432		✗	av_frame_free(&tmp_frame);
433		✗	return ret;
434			}
435
436		✗	static double midi(void *p, double f)
437			{
438		✗	return log2(f/440.0) * 12.0 + 69.0;
439			}
440
441		✗	static double r_func(void *p, double x)
442			{
443		✗	x = av_clipd(x, 0.0, 1.0);
444		✗	return lrint(x*255.0) << 16;
445			}
446
447		✗	static double g_func(void *p, double x)
448			{
449		✗	x = av_clipd(x, 0.0, 1.0);
450		✗	return lrint(x*255.0) << 8;
451			}
452
453		✗	static double b_func(void *p, double x)
454			{
455		✗	x = av_clipd(x, 0.0, 1.0);
456		✗	return lrint(x*255.0);
457			}
458
459		✗	static int init_axis_color(ShowCQTContext *s, AVFrame *tmp, int half)
460			{
461		✗	const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
462		✗	const char *func_names[] = { "midi", "r", "g", "b", NULL };
463		✗	double (*funcs[])(void *, double) = { midi, r_func, g_func, b_func };
464		✗	AVExpr *expr = NULL;
465		✗	double *freq = NULL;
466			int x, xs, y, ret;
467		✗	int width = half ? 1920/2 : 1920, height = half ? 16 : 32;
468		✗	int step = half ? 2 : 1;
469
470		✗	if (s->basefreq != (double) BASEFREQ || s->endfreq != (double) ENDFREQ) {
471		✗	av_log(s->ctx, AV_LOG_WARNING, "font axis rendering is not implemented in non-default frequency range,"
472			" please use axisfile option instead.\n");
473		✗	return AVERROR(EINVAL);
474			}
475
476		✗	if (s->cqt_len == 1920)
477		✗	freq = s->freq;
478		✗	else if (!(freq = create_freq_table(s->basefreq, s->endfreq, 1920)))
479		✗	return AVERROR(ENOMEM);
480
481		✗	if ((ret = av_expr_parse(&expr, s->fontcolor, var_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0) {
482		✗	if (freq != s->freq)
483		✗	av_freep(&freq);
484		✗	return ret;
485			}
486
487		✗	for (x = 0, xs = 0; x < width; x++, xs += step) {
488		✗	double vars[] = { s->timeclamp, s->timeclamp, freq[xs], freq[xs], freq[xs] };
489		✗	int color = (int) av_expr_eval(expr, vars, NULL);
490		✗	uint8_t r = (color >> 16) & 0xFF, g = (color >> 8) & 0xFF, b = color & 0xFF;
491		✗	uint8_t *data = tmp->data[0];
492		✗	int linesize = tmp->linesize[0];
493		✗	for (y = 0; y < height; y++) {
494		✗	data[linesize * y + 4 * x] = r;
495		✗	data[linesize * y + 4 * x + 1] = g;
496		✗	data[linesize * y + 4 * x + 2] = b;
497			}
498			}
499
500		✗	av_expr_free(expr);
501		✗	if (freq != s->freq)
502		✗	av_freep(&freq);
503		✗	return 0;
504			}
505
506		✗	static int render_freetype(ShowCQTContext *s, AVFrame *tmp, char *fontfile)
507			{
508			#if CONFIG_LIBFREETYPE
509			const char *str = "EF G A BC D ";
510			uint8_t *data = tmp->data[0];
511			int linesize = tmp->linesize[0];
512			FT_Library lib = NULL;
513			FT_Face face = NULL;
514			int font_width = 16, font_height = 32;
515			int font_repeat = font_width * 12;
516			int linear_hori_advance = font_width * 65536;
517			int non_monospace_warning = 0;
518			int x;
519
520			if (!fontfile)
521			return AVERROR(EINVAL);
522
523			if (FT_Init_FreeType(&lib))
524			goto fail;
525
526			if (FT_New_Face(lib, fontfile, 0, &face))
527			goto fail;
528
529			if (FT_Set_Char_Size(face, 16*64, 0, 0, 0))
530			goto fail;
531
532			if (FT_Load_Char(face, 'A', FT_LOAD_RENDER))
533			goto fail;
534
535			if (FT_Set_Char_Size(face, 16*64 * linear_hori_advance / face->glyph->linearHoriAdvance, 0, 0, 0))
536			goto fail;
537
538			for (x = 0; x < 12; x++) {
539			int sx, sy, rx, bx, by, dx, dy;
540
541			if (str[x] == ' ')
542			continue;
543
544			if (FT_Load_Char(face, str[x], FT_LOAD_RENDER))
545			goto fail;
546
547			if (face->glyph->advance.x != font_width*64 && !non_monospace_warning) {
548			av_log(s->ctx, AV_LOG_WARNING, "font is not monospace.\n");
549			non_monospace_warning = 1;
550			}
551
552			sy = font_height - 8 - face->glyph->bitmap_top;
553			for (rx = 0; rx < 10; rx++) {
554			sx = rx * font_repeat + x * font_width + face->glyph->bitmap_left;
555			for (by = 0; by < face->glyph->bitmap.rows; by++) {
556			dy = by + sy;
557			if (dy < 0)
558			continue;
559			if (dy >= font_height)
560			break;
561
562			for (bx = 0; bx < face->glyph->bitmap.width; bx++) {
563			dx = bx + sx;
564			if (dx < 0)
565			continue;
566			if (dx >= 1920)
567			break;
568			data[dy*linesize+4*dx+3] = face->glyph->bitmap.buffer[by*face->glyph->bitmap.width+bx];
569			}
570			}
571			}
572			}
573
574			FT_Done_Face(face);
575			FT_Done_FreeType(lib);
576			return 0;
577
578			fail:
579			av_log(s->ctx, AV_LOG_WARNING, "error while loading freetype font.\n");
580			FT_Done_Face(face);
581			FT_Done_FreeType(lib);
582			return AVERROR(EINVAL);
583			#else
584		✗	if (fontfile)
585		✗	av_log(s->ctx, AV_LOG_WARNING, "freetype is not available, ignoring fontfile option.\n");
586		✗	return AVERROR(EINVAL);
587			#endif
588			}
589
590		✗	static int render_fontconfig(ShowCQTContext *s, AVFrame *tmp, char* font)
591			{
592			#if CONFIG_LIBFONTCONFIG
593			FcConfig *fontconfig;
594			FcPattern *pat, *best;
595			FcResult result = FcResultMatch;
596			char *filename;
597			int i, ret;
598
599			if (!font)
600			return AVERROR(EINVAL);
601
602			for (i = 0; font[i]; i++) {
603			if (font[i] == '|')
604			font[i] = ':';
605			}
606
607			if (!(fontconfig = FcInitLoadConfigAndFonts())) {
608			av_log(s->ctx, AV_LOG_ERROR, "impossible to init fontconfig.\n");
609			return AVERROR_UNKNOWN;
610			}
611
612			if (!(pat = FcNameParse((uint8_t *)font))) {
613			av_log(s->ctx, AV_LOG_ERROR, "could not parse fontconfig pat.\n");
614			FcConfigDestroy(fontconfig);
615			return AVERROR(EINVAL);
616			}
617
618			FcDefaultSubstitute(pat);
619
620			if (!FcConfigSubstitute(fontconfig, pat, FcMatchPattern)) {
621			av_log(s->ctx, AV_LOG_ERROR, "could not substitute fontconfig options.\n");
622			FcPatternDestroy(pat);
623			FcConfigDestroy(fontconfig);
624			return AVERROR(ENOMEM);
625			}
626
627			best = FcFontMatch(fontconfig, pat, &result);
628			FcPatternDestroy(pat);
629
630			ret = AVERROR(EINVAL);
631			if (!best || result != FcResultMatch) {
632			av_log(s->ctx, AV_LOG_ERROR, "cannot find a valid font for %s.\n", font);
633			goto fail;
634			}
635
636			if (FcPatternGetString(best, FC_FILE, 0, (FcChar8 **)&filename) != FcResultMatch) {
637			av_log(s->ctx, AV_LOG_ERROR, "no file path for %s\n", font);
638			goto fail;
639			}
640
641			ret = render_freetype(s, tmp, filename);
642
643			fail:
644			FcPatternDestroy(best);
645			FcConfigDestroy(fontconfig);
646			return ret;
647			#else
648		✗	if (font)
649		✗	av_log(s->ctx, AV_LOG_WARNING, "fontconfig is not available, ignoring font option.\n");
650		✗	return AVERROR(EINVAL);
651			#endif
652			}
653
654		✗	static int render_default_font(AVFrame *tmp)
655			{
656		✗	const char *str = "EF G A BC D ";
657		✗	const uint8_t *vga16_font = avpriv_vga16_font_get();
658			int x, u, v, mask;
659		✗	uint8_t *data = tmp->data[0];
660		✗	int linesize = tmp->linesize[0];
661		✗	int width = 1920/2, height = 16;
662
663		✗	for (x = 0; x < width; x += width/10) {
664		✗	uint8_t *startptr = data + 4 * x;
665		✗	for (u = 0; u < 12; u++) {
666		✗	for (v = 0; v < height; v++) {
667		✗	uint8_t *p = startptr + v * linesize + height/2 * 4 * u;
668		✗	for (mask = 0x80; mask; mask >>= 1, p += 4) {
669		✗	if (mask & vga16_font[str[u] * 16 + v])
670		✗	p[3] = 255;
671			else
672		✗	p[3] = 0;
673			}
674			}
675			}
676			}
677
678		✗	return 0;
679			}
680
681		✗	static int init_axis_from_font(ShowCQTContext *s)
682			{
683		✗	AVFrame *tmp = NULL;
684		✗	int ret = AVERROR(ENOMEM);
685		✗	int width = 1920, height = 32;
686		✗	int default_font = 0;
687
688		✗	if (!(tmp = alloc_frame_empty(AV_PIX_FMT_RGBA, width, height)))
689		✗	goto fail;
690
691		✗	if (!(s->axis_frame = av_frame_alloc()))
692		✗	goto fail;
693
694		✗	if (render_freetype(s, tmp, s->fontfile) < 0 &&
695		✗	render_fontconfig(s, tmp, s->font) < 0 &&
696		✗	(default_font = 1, ret = render_default_font(tmp)) < 0)
697		✗	goto fail;
698
699		✗	if (default_font)
700		✗	width /= 2, height /= 2;
701
702		✗	if ((ret = init_axis_color(s, tmp, default_font)) < 0)
703		✗	goto fail;
704
705		✗	if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
706		✗	convert_axis_pixel_format(s->format), tmp->data, tmp->linesize,
707		✗	width, height, AV_PIX_FMT_RGBA, s->ctx)) < 0)
708		✗	goto fail;
709
710		✗	av_frame_free(&tmp);
711		✗	s->axis_frame->width = s->width;
712		✗	s->axis_frame->height = s->axis_h;
713		✗	s->axis_frame->format = convert_axis_pixel_format(s->format);
714		✗	return 0;
715
716		✗	fail:
717		✗	av_frame_free(&tmp);
718		✗	av_frame_free(&s->axis_frame);
719		✗	return ret;
720			}
721
722		✗	static float calculate_gamma(float v, float g)
723			{
724		✗	if (g == 1.0f)
725		✗	return v;
726		✗	if (g == 2.0f)
727		✗	return sqrtf(v);
728		✗	if (g == 3.0f)
729		✗	return cbrtf(v);
730		✗	if (g == 4.0f)
731		✗	return sqrtf(sqrtf(v));
732		✗	return expf(logf(v) / g);
733			}
734
735		✗	static void rgb_from_cqt(ColorFloat *c, const AVComplexFloat *v, float g, int len, float cscheme[6])
736			{
737			int x;
738		✗	for (x = 0; x < len; x++) {
739		✗	c[x].rgb.r = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), g);
740		✗	c[x].rgb.g = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), g);
741		✗	c[x].rgb.b = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), g);
742			}
743		✗	}
744
745		✗	static void yuv_from_cqt(ColorFloat *c, const AVComplexFloat *v, float gamma, int len, float cm[3][3], float cscheme[6])
746			{
747			int x;
748		✗	for (x = 0; x < len; x++) {
749			float r, g, b;
750		✗	r = calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), gamma);
751		✗	g = calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), gamma);
752		✗	b = calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), gamma);
753		✗	c[x].yuv.y = cm[0][0] * r + cm[0][1] * g + cm[0][2] * b;
754		✗	c[x].yuv.u = cm[1][0] * r + cm[1][1] * g + cm[1][2] * b;
755		✗	c[x].yuv.v = cm[2][0] * r + cm[2][1] * g + cm[2][2] * b;
756			}
757		✗	}
758
759		✗	static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
760			const ColorFloat *c, int bar_h, float bar_t)
761			{
762		✗	int x, y, w = out->width;
763		✗	float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
764		✗	uint8_t *v = out->data[0], *lp;
765		✗	int ls = out->linesize[0];
766
767		✗	for (y = 0; y < bar_h; y++) {
768		✗	ht = (bar_h - y) * rcp_bar_h;
769		✗	lp = v + y * ls;
770		✗	for (x = 0; x < w; x++) {
771		✗	if (h[x] <= ht) {
772		✗	*lp++ = 0;
773		✗	*lp++ = 0;
774		✗	*lp++ = 0;
775			} else {
776		✗	mul = (h[x] - ht) * rcp_h[x];
777		✗	mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f;
778		✗	*lp++ = lrintf(mul * c[x].rgb.r);
779		✗	*lp++ = lrintf(mul * c[x].rgb.g);
780		✗	*lp++ = lrintf(mul * c[x].rgb.b);
781			}
782			}
783			}
784		✗	}
785
786			#define DRAW_BAR_WITH_CHROMA(x) \
787			do { \
788			if (h[x] <= ht) { \
789			*lpy++ = 16; \
790			*lpu++ = 128; \
791			*lpv++ = 128; \
792			} else { \
793			mul = (h[x] - ht) * rcp_h[x]; \
794			mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
795			*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
796			*lpu++ = lrintf(mul * c[x].yuv.u + 128.0f); \
797			*lpv++ = lrintf(mul * c[x].yuv.v + 128.0f); \
798			} \
799			} while (0)
800
801			#define DRAW_BAR_WITHOUT_CHROMA(x) \
802			do { \
803			if (h[x] <= ht) { \
804			*lpy++ = 16; \
805			} else { \
806			mul = (h[x] - ht) * rcp_h[x]; \
807			mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
808			*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
809			} \
810			} while (0)
811
812		✗	static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h,
813			const ColorFloat *c, int bar_h, float bar_t)
814			{
815		✗	int x, y, yh, w = out->width;
816		✗	float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
817		✗	uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
818			uint8_t *lpy, *lpu, *lpv;
819		✗	int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
820		✗	int fmt = out->format;
821
822		✗	for (y = 0; y < bar_h; y += 2) {
823		✗	yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
824		✗	ht = (bar_h - y) * rcp_bar_h;
825		✗	lpy = vy + y * lsy;
826		✗	lpu = vu + yh * lsu;
827		✗	lpv = vv + yh * lsv;
828		✗	if (fmt == AV_PIX_FMT_YUV444P) {
829		✗	for (x = 0; x < w; x += 2) {
830		✗	DRAW_BAR_WITH_CHROMA(x);
831		✗	DRAW_BAR_WITH_CHROMA(x+1);
832			}
833			} else {
834		✗	for (x = 0; x < w; x += 2) {
835		✗	DRAW_BAR_WITH_CHROMA(x);
836		✗	DRAW_BAR_WITHOUT_CHROMA(x+1);
837			}
838			}
839
840		✗	ht = (bar_h - (y+1)) * rcp_bar_h;
841		✗	lpy = vy + (y+1) * lsy;
842		✗	lpu = vu + (y+1) * lsu;
843		✗	lpv = vv + (y+1) * lsv;
844		✗	if (fmt == AV_PIX_FMT_YUV444P) {
845		✗	for (x = 0; x < w; x += 2) {
846		✗	DRAW_BAR_WITH_CHROMA(x);
847		✗	DRAW_BAR_WITH_CHROMA(x+1);
848			}
849		✗	} else if (fmt == AV_PIX_FMT_YUV422P) {
850		✗	for (x = 0; x < w; x += 2) {
851		✗	DRAW_BAR_WITH_CHROMA(x);
852		✗	DRAW_BAR_WITHOUT_CHROMA(x+1);
853			}
854			} else {
855		✗	for (x = 0; x < w; x += 2) {
856		✗	DRAW_BAR_WITHOUT_CHROMA(x);
857		✗	DRAW_BAR_WITHOUT_CHROMA(x+1);
858			}
859			}
860			}
861		✗	}
862
863		✗	static void draw_axis_rgb(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
864			{
865		✗	int x, y, w = axis->width, h = axis->height;
866		✗	float a, rcp_255 = 1.0f / 255.0f;
867			uint8_t *lp, *lpa;
868
869		✗	for (y = 0; y < h; y++) {
870		✗	lp = out->data[0] + (off + y) * out->linesize[0];
871		✗	lpa = axis->data[0] + y * axis->linesize[0];
872		✗	for (x = 0; x < w; x++) {
873		✗	if (!lpa[3]) {
874		✗	*lp++ = lrintf(c[x].rgb.r);
875		✗	*lp++ = lrintf(c[x].rgb.g);
876		✗	*lp++ = lrintf(c[x].rgb.b);
877		✗	} else if (lpa[3] == 255) {
878		✗	*lp++ = lpa[0];
879		✗	*lp++ = lpa[1];
880		✗	*lp++ = lpa[2];
881			} else {
882		✗	a = rcp_255 * lpa[3];
883		✗	*lp++ = lrintf(a * lpa[0] + (1.0f - a) * c[x].rgb.r);
884		✗	*lp++ = lrintf(a * lpa[1] + (1.0f - a) * c[x].rgb.g);
885		✗	*lp++ = lrintf(a * lpa[2] + (1.0f - a) * c[x].rgb.b);
886			}
887		✗	lpa += 4;
888			}
889			}
890		✗	}
891
892			#define BLEND_WITH_CHROMA(c) \
893			do { \
894			if (!*lpaa) { \
895			*lpy = lrintf(c.yuv.y + 16.0f); \
896			*lpu = lrintf(c.yuv.u + 128.0f); \
897			*lpv = lrintf(c.yuv.v + 128.0f); \
898			} else if (255 == *lpaa) { \
899			*lpy = *lpay; \
900			*lpu = *lpau; \
901			*lpv = *lpav; \
902			} else { \
903			float a = (1.0f/255.0f) * (*lpaa); \
904			*lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
905			*lpu = lrintf(a * (*lpau) + (1.0f - a) * (c.yuv.u + 128.0f)); \
906			*lpv = lrintf(a * (*lpav) + (1.0f - a) * (c.yuv.v + 128.0f)); \
907			} \
908			lpy++; lpu++; lpv++; \
909			lpay++; lpau++; lpav++; lpaa++; \
910			} while (0)
911
912			#define BLEND_WITHOUT_CHROMA(c, alpha_inc) \
913			do { \
914			if (!*lpaa) { \
915			*lpy = lrintf(c.yuv.y + 16.0f); \
916			} else if (255 == *lpaa) { \
917			*lpy = *lpay; \
918			} else { \
919			float a = (1.0f/255.0f) * (*lpaa); \
920			*lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
921			} \
922			lpy++; \
923			lpay++; lpaa += alpha_inc; \
924			} while (0)
925
926			#define BLEND_CHROMA2(c) \
927			do { \
928			if (!lpaa[0] && !lpaa[1]) { \
929			*lpu = lrintf(c.yuv.u + 128.0f); \
930			*lpv = lrintf(c.yuv.v + 128.0f); \
931			} else if (255 == lpaa[0] && 255 == lpaa[1]) { \
932			*lpu = *lpau; *lpv = *lpav; \
933			} else { \
934			float a0 = (0.5f/255.0f) * lpaa[0]; \
935			float a1 = (0.5f/255.0f) * lpaa[1]; \
936			float b = 1.0f - a0 - a1; \
937			*lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + b * (c.yuv.u + 128.0f)); \
938			*lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + b * (c.yuv.v + 128.0f)); \
939			} \
940			lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
941			} while (0)
942
943			#define BLEND_CHROMA2x2(c) \
944			do { \
945			if (!lpaa[0] && !lpaa[1] && !lpaa[lsaa] && !lpaa[lsaa+1]) { \
946			*lpu = lrintf(c.yuv.u + 128.0f); \
947			*lpv = lrintf(c.yuv.v + 128.0f); \
948			} else if (255 == lpaa[0] && 255 == lpaa[1] && \
949			255 == lpaa[lsaa] && 255 == lpaa[lsaa+1]) { \
950			*lpu = *lpau; *lpv = *lpav; \
951			} else { \
952			float a0 = (0.25f/255.0f) * lpaa[0]; \
953			float a1 = (0.25f/255.0f) * lpaa[1]; \
954			float a2 = (0.25f/255.0f) * lpaa[lsaa]; \
955			float a3 = (0.25f/255.0f) * lpaa[lsaa+1]; \
956			float b = 1.0f - a0 - a1 - a2 - a3; \
957			*lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + a2 * lpau[lsau] + a3 * lpau[lsau+1] \
958			+ b * (c.yuv.u + 128.0f)); \
959			*lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + a2 * lpav[lsav] + a3 * lpav[lsav+1] \
960			+ b * (c.yuv.v + 128.0f)); \
961			} \
962			lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
963			} while (0)
964
965		✗	static void draw_axis_yuv(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
966			{
967		✗	int fmt = out->format, x, y, yh, w = axis->width, h = axis->height;
968		✗	int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
969		✗	uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
970		✗	uint8_t *vay = axis->data[0], *vau = axis->data[1], *vav = axis->data[2], *vaa = axis->data[3];
971		✗	int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
972		✗	int lsay = axis->linesize[0], lsau = axis->linesize[1], lsav = axis->linesize[2], lsaa = axis->linesize[3];
973			uint8_t *lpy, *lpu, *lpv, *lpay, *lpau, *lpav, *lpaa;
974
975		✗	for (y = 0; y < h; y += 2) {
976		✗	yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
977		✗	lpy = vy + (off + y) * lsy;
978		✗	lpu = vu + (offh + yh) * lsu;
979		✗	lpv = vv + (offh + yh) * lsv;
980		✗	lpay = vay + y * lsay;
981		✗	lpau = vau + y * lsau;
982		✗	lpav = vav + y * lsav;
983		✗	lpaa = vaa + y * lsaa;
984		✗	if (fmt == AV_PIX_FMT_YUV444P) {
985		✗	for (x = 0; x < w; x += 2) {
986		✗	BLEND_WITH_CHROMA(c[x]);
987		✗	BLEND_WITH_CHROMA(c[x+1]);
988			}
989		✗	} else if (fmt == AV_PIX_FMT_YUV422P) {
990		✗	for (x = 0; x < w; x += 2) {
991		✗	BLEND_WITHOUT_CHROMA(c[x], 0);
992		✗	BLEND_CHROMA2(c[x]);
993		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
994			}
995			} else {
996		✗	for (x = 0; x < w; x += 2) {
997		✗	BLEND_WITHOUT_CHROMA(c[x], 0);
998		✗	BLEND_CHROMA2x2(c[x]);
999		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
1000			}
1001			}
1002
1003		✗	lpy = vy + (off + y + 1) * lsy;
1004		✗	lpu = vu + (off + y + 1) * lsu;
1005		✗	lpv = vv + (off + y + 1) * lsv;
1006		✗	lpay = vay + (y + 1) * lsay;
1007		✗	lpau = vau + (y + 1) * lsau;
1008		✗	lpav = vav + (y + 1) * lsav;
1009		✗	lpaa = vaa + (y + 1) * lsaa;
1010		✗	if (fmt == AV_PIX_FMT_YUV444P) {
1011		✗	for (x = 0; x < w; x += 2) {
1012		✗	BLEND_WITH_CHROMA(c[x]);
1013		✗	BLEND_WITH_CHROMA(c[x+1]);
1014			}
1015		✗	} else if (fmt == AV_PIX_FMT_YUV422P) {
1016		✗	for (x = 0; x < w; x += 2) {
1017		✗	BLEND_WITHOUT_CHROMA(c[x], 0);
1018		✗	BLEND_CHROMA2(c[x]);
1019		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
1020			}
1021			} else {
1022		✗	for (x = 0; x < w; x += 2) {
1023		✗	BLEND_WITHOUT_CHROMA(c[x], 1);
1024		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
1025			}
1026			}
1027			}
1028		✗	}
1029
1030		✗	static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx)
1031			{
1032		✗	int fmt = out->format, h = sono->height;
1033		✗	int nb_planes = (fmt == AV_PIX_FMT_RGB24) ? 1 : 3;
1034		✗	int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
1035		✗	int inc = (fmt == AV_PIX_FMT_YUV420P) ? 2 : 1;
1036			ptrdiff_t ls;
1037			int i, y, yh;
1038
1039		✗	ls = FFABS(FFMIN(out->linesize[0], sono->linesize[0]));
1040		✗	for (y = 0; y < h; y++) {
1041		✗	memcpy(out->data[0] + (off + y) * out->linesize[0],
1042		✗	sono->data[0] + (idx + y) % h * sono->linesize[0], ls);
1043			}
1044
1045		✗	for (i = 1; i < nb_planes; i++) {
1046		✗	ls = FFABS(FFMIN(out->linesize[i], sono->linesize[i]));
1047		✗	for (y = 0; y < h; y += inc) {
1048		✗	yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
1049		✗	memcpy(out->data[i] + (offh + yh) * out->linesize[i],
1050		✗	sono->data[i] + (idx + y) % h * sono->linesize[i], ls);
1051			}
1052			}
1053		✗	}
1054
1055		✗	static void update_sono_rgb(AVFrame *sono, const ColorFloat *c, int idx)
1056			{
1057		✗	int x, w = sono->width;
1058		✗	uint8_t *lp = sono->data[0] + idx * sono->linesize[0];
1059
1060		✗	for (x = 0; x < w; x++) {
1061		✗	*lp++ = lrintf(c[x].rgb.r);
1062		✗	*lp++ = lrintf(c[x].rgb.g);
1063		✗	*lp++ = lrintf(c[x].rgb.b);
1064			}
1065		✗	}
1066
1067		✗	static void update_sono_yuv(AVFrame *sono, const ColorFloat *c, int idx)
1068			{
1069		✗	int x, fmt = sono->format, w = sono->width;
1070		✗	uint8_t *lpy = sono->data[0] + idx * sono->linesize[0];
1071		✗	uint8_t *lpu = sono->data[1] + idx * sono->linesize[1];
1072		✗	uint8_t *lpv = sono->data[2] + idx * sono->linesize[2];
1073
1074		✗	for (x = 0; x < w; x += 2) {
1075		✗	*lpy++ = lrintf(c[x].yuv.y + 16.0f);
1076		✗	*lpu++ = lrintf(c[x].yuv.u + 128.0f);
1077		✗	*lpv++ = lrintf(c[x].yuv.v + 128.0f);
1078		✗	*lpy++ = lrintf(c[x+1].yuv.y + 16.0f);
1079		✗	if (fmt == AV_PIX_FMT_YUV444P) {
1080		✗	*lpu++ = lrintf(c[x+1].yuv.u + 128.0f);
1081		✗	*lpv++ = lrintf(c[x+1].yuv.v + 128.0f);
1082			}
1083			}
1084		✗	}
1085
1086		✗	static void process_cqt(ShowCQTContext *s)
1087			{
1088			int x, i;
1089		✗	if (!s->sono_count) {
1090		✗	for (x = 0; x < s->cqt_len; x++) {
1091		✗	s->h_buf[x] = s->bar_v_buf[x] * 0.5f * (s->cqt_result[x].re + s->cqt_result[x].im);
1092			}
1093		✗	if (s->fcount > 1) {
1094		✗	float rcp_fcount = 1.0f / s->fcount;
1095		✗	for (x = 0; x < s->width; x++) {
1096		✗	float h = 0.0f;
1097		✗	for (i = 0; i < s->fcount; i++)
1098		✗	h += s->h_buf[s->fcount * x + i];
1099		✗	s->h_buf[x] = rcp_fcount * h;
1100			}
1101			}
1102		✗	for (x = 0; x < s->width; x++) {
1103		✗	s->h_buf[x] = calculate_gamma(s->h_buf[x], s->bar_g);
1104		✗	s->rcp_h_buf[x] = 1.0f / (s->h_buf[x] + 0.0001f);
1105			}
1106			}
1107
1108		✗	for (x = 0; x < s->cqt_len; x++) {
1109		✗	s->cqt_result[x].re *= s->sono_v_buf[x];
1110		✗	s->cqt_result[x].im *= s->sono_v_buf[x];
1111			}
1112
1113		✗	if (s->fcount > 1) {
1114		✗	float rcp_fcount = 1.0f / s->fcount;
1115		✗	for (x = 0; x < s->width; x++) {
1116		✗	AVComplexFloat result = {0.0f, 0.0f};
1117		✗	for (i = 0; i < s->fcount; i++) {
1118		✗	result.re += s->cqt_result[s->fcount * x + i].re;
1119		✗	result.im += s->cqt_result[s->fcount * x + i].im;
1120			}
1121		✗	s->cqt_result[x].re = rcp_fcount * result.re;
1122		✗	s->cqt_result[x].im = rcp_fcount * result.im;
1123			}
1124			}
1125
1126		✗	if (s->format == AV_PIX_FMT_RGB24)
1127		✗	rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cscheme_v);
1128			else
1129		✗	yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cmatrix, s->cscheme_v);
1130		✗	}
1131
1132		✗	static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
1133			{
1134		✗	AVFilterLink *outlink = ctx->outputs[0];
1135		✗	ShowCQTContext *s = ctx->priv;
1136			int64_t last_time, cur_time;
1137
1138			#define UPDATE_TIME(t) \
1139			cur_time = av_gettime_relative(); \
1140			t += cur_time - last_time; \
1141			last_time = cur_time
1142
1143		✗	last_time = av_gettime_relative();
1144
1145		✗	memcpy(s->fft_input, s->fft_data, s->fft_len * sizeof(*s->fft_data));
1146		✗	if (s->attack_data) {
1147			int k;
1148		✗	for (k = 0; k < s->remaining_fill_max; k++) {
1149		✗	s->fft_input[s->fft_len/2+k].re *= s->attack_data[k];
1150		✗	s->fft_input[s->fft_len/2+k].im *= s->attack_data[k];
1151			}
1152			}
1153
1154		✗	s->tx_fn(s->fft_ctx, s->fft_result, s->fft_input, sizeof(AVComplexFloat));
1155		✗	UPDATE_TIME(s->fft_time);
1156
1157		✗	s->cqt_calc(s->cqt_result, s->fft_result, s->coeffs, s->cqt_len, s->fft_len);
1158		✗	UPDATE_TIME(s->cqt_time);
1159
1160		✗	process_cqt(s);
1161		✗	UPDATE_TIME(s->process_cqt_time);
1162
1163		✗	if (s->sono_h) {
1164		✗	s->update_sono(s->sono_frame, s->c_buf, s->sono_idx);
1165		✗	UPDATE_TIME(s->update_sono_time);
1166			}
1167
1168		✗	if (!s->sono_count) {
1169		✗	AVFrame *out = *frameout = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1170		✗	if (!out)
1171		✗	return AVERROR(ENOMEM);
1172		✗	out->sample_aspect_ratio = av_make_q(1, 1);
1173		✗	out->color_range = AVCOL_RANGE_MPEG;
1174		✗	out->colorspace = s->csp;
1175		✗	UPDATE_TIME(s->alloc_time);
1176
1177		✗	if (s->bar_h) {
1178		✗	s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h, s->bar_t);
1179		✗	UPDATE_TIME(s->bar_time);
1180			}
1181
1182		✗	if (s->axis_h) {
1183		✗	s->draw_axis(out, s->axis_frame, s->c_buf, s->bar_h);
1184		✗	UPDATE_TIME(s->axis_time);
1185			}
1186
1187		✗	if (s->sono_h) {
1188		✗	s->draw_sono(out, s->sono_frame, s->bar_h + s->axis_h, s->sono_idx);
1189		✗	UPDATE_TIME(s->sono_time);
1190			}
1191			}
1192		✗	s->sono_count = (s->sono_count + 1) % s->count;
1193		✗	if (s->sono_h)
1194		✗	s->sono_idx = (s->sono_idx + s->sono_h - 1) % s->sono_h;
1195		✗	return 0;
1196			}
1197
1198		✗	static void init_colormatrix(ShowCQTContext *s)
1199			{
1200			double kr, kg, kb;
1201
1202			/* from vf_colorspace.c */
1203		✗	switch (s->csp) {
1204		✗	default:
1205		✗	av_log(s->ctx, AV_LOG_WARNING, "unsupported colorspace, setting it to unspecified.\n");
1206		✗	s->csp = AVCOL_SPC_UNSPECIFIED;
1207			av_fallthrough;
1208		✗	case AVCOL_SPC_UNSPECIFIED:
1209			case AVCOL_SPC_BT470BG:
1210			case AVCOL_SPC_SMPTE170M:
1211		✗	kr = 0.299; kb = 0.114; break;
1212		✗	case AVCOL_SPC_BT709:
1213		✗	kr = 0.2126; kb = 0.0722; break;
1214		✗	case AVCOL_SPC_FCC:
1215		✗	kr = 0.30; kb = 0.11; break;
1216		✗	case AVCOL_SPC_SMPTE240M:
1217		✗	kr = 0.212; kb = 0.087; break;
1218		✗	case AVCOL_SPC_BT2020_NCL:
1219		✗	kr = 0.2627; kb = 0.0593; break;
1220			}
1221
1222		✗	kg = 1.0 - kr - kb;
1223		✗	s->cmatrix[0][0] = 219.0 * kr;
1224		✗	s->cmatrix[0][1] = 219.0 * kg;
1225		✗	s->cmatrix[0][2] = 219.0 * kb;
1226		✗	s->cmatrix[1][0] = -112.0 * kr / (1.0 - kb);
1227		✗	s->cmatrix[1][1] = -112.0 * kg / (1.0 - kb);
1228		✗	s->cmatrix[1][2] = 112.0;
1229		✗	s->cmatrix[2][0] = 112.0;
1230		✗	s->cmatrix[2][1] = -112.0 * kg / (1.0 - kr);
1231		✗	s->cmatrix[2][2] = -112.0 * kb / (1.0 - kr);
1232		✗	}
1233
1234		✗	static int init_cscheme(ShowCQTContext *s)
1235			{
1236			char tail[2];
1237			int k;
1238
1239		✗	if (sscanf(s->cscheme, " %f | %f | %f | %f | %f | %f %1s", &s->cscheme_v[0],
1240			&s->cscheme_v[1], &s->cscheme_v[2], &s->cscheme_v[3], &s->cscheme_v[4],
1241			&s->cscheme_v[5], tail) != 6)
1242		✗	goto fail;
1243
1244		✗	for (k = 0; k < 6; k++)
1245		✗	if (isnan(s->cscheme_v[k]) || s->cscheme_v[k] < 0.0f || s->cscheme_v[k] > 1.0f)
1246		✗	goto fail;
1247
1248		✗	return 0;
1249
1250		✗	fail:
1251		✗	av_log(s->ctx, AV_LOG_ERROR, "invalid cscheme.\n");
1252		✗	return AVERROR(EINVAL);
1253			}
1254
1255			/* main filter control */
1256		✗	static av_cold int init(AVFilterContext *ctx)
1257			{
1258		✗	ShowCQTContext *s = ctx->priv;
1259		✗	s->ctx = ctx;
1260
1261		✗	if (!s->fullhd) {
1262		✗	av_log(ctx, AV_LOG_WARNING, "fullhd option is deprecated, use size/s option instead.\n");
1263		✗	if (s->width != 1920 || s->height != 1080) {
1264		✗	av_log(ctx, AV_LOG_ERROR, "fullhd set to 0 but with custom dimension.\n");
1265		✗	return AVERROR(EINVAL);
1266			}
1267		✗	s->width /= 2;
1268		✗	s->height /= 2;
1269		✗	s->fullhd = 1;
1270			}
1271
1272		✗	if (s->axis_h < 0) {
1273		✗	s->axis_h = s->width / 60;
1274		✗	if (s->axis_h & 1)
1275		✗	s->axis_h++;
1276		✗	if (s->bar_h >= 0 && s->sono_h >= 0)
1277		✗	s->axis_h = s->height - s->bar_h - s->sono_h;
1278		✗	if (s->bar_h >= 0 && s->sono_h < 0)
1279		✗	s->axis_h = FFMIN(s->axis_h, s->height - s->bar_h);
1280		✗	if (s->bar_h < 0 && s->sono_h >= 0)
1281		✗	s->axis_h = FFMIN(s->axis_h, s->height - s->sono_h);
1282			}
1283
1284		✗	if (s->bar_h < 0) {
1285		✗	s->bar_h = (s->height - s->axis_h) / 2;
1286		✗	if (s->bar_h & 1)
1287		✗	s->bar_h--;
1288		✗	if (s->sono_h >= 0)
1289		✗	s->bar_h = s->height - s->sono_h - s->axis_h;
1290			}
1291
1292		✗	if (s->sono_h < 0)
1293		✗	s->sono_h = s->height - s->axis_h - s->bar_h;
1294
1295		✗	if ((s->width & 1) || (s->height & 1) || (s->bar_h & 1) || (s->axis_h & 1) || (s->sono_h & 1) ||
1296		✗	(s->bar_h < 0) || (s->axis_h < 0) || (s->sono_h < 0) || (s->bar_h > s->height) ||
1297		✗	(s->axis_h > s->height) || (s->sono_h > s->height) || (s->bar_h + s->axis_h + s->sono_h != s->height)) {
1298		✗	av_log(ctx, AV_LOG_ERROR, "invalid dimension.\n");
1299		✗	return AVERROR(EINVAL);
1300			}
1301
1302		✗	if (!s->fcount) {
1303			do {
1304		✗	s->fcount++;
1305		✗	} while(s->fcount * s->width < 1920 && s->fcount < 10);
1306			}
1307
1308		✗	init_colormatrix(s);
1309
1310		✗	return init_cscheme(s);
1311			}
1312
1313		✗	static av_cold void uninit(AVFilterContext *ctx)
1314			{
1315		✗	common_uninit(ctx->priv);
1316		✗	}
1317
1318		✗	static int query_formats(const AVFilterContext *ctx,
1319			AVFilterFormatsConfig **cfg_in,
1320			AVFilterFormatsConfig **cfg_out)
1321			{
1322		✗	AVFilterFormats *formats = NULL;
1323			static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_NONE };
1324			static const enum AVPixelFormat pix_fmts[] = {
1325			AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
1326			AV_PIX_FMT_YUV444P, AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
1327			};
1328			static const AVChannelLayout channel_layouts[] = { AV_CHANNEL_LAYOUT_STEREO,
1329			AV_CHANNEL_LAYOUT_STEREO_DOWNMIX, { 0 } };
1330			int ret;
1331
1332			/* set input audio formats */
1333		✗	formats = ff_make_sample_format_list(sample_fmts);
1334		✗	if ((ret = ff_formats_ref(formats, &cfg_in[0]->formats)) < 0)
1335		✗	return ret;
1336
1337		✗	ret = ff_set_common_channel_layouts_from_list2(ctx, cfg_in, cfg_out, channel_layouts);
1338		✗	if (ret < 0)
1339		✗	return ret;
1340
1341			/* set output video format */
1342		✗	formats = ff_make_pixel_format_list(pix_fmts);
1343		✗	if ((ret = ff_formats_ref(formats, &cfg_out[0]->formats)) < 0)
1344		✗	return ret;
1345
1346		✗	return 0;
1347			}
1348
1349		✗	static int config_output(AVFilterLink *outlink)
1350			{
1351		✗	FilterLink *l = ff_filter_link(outlink);
1352		✗	AVFilterContext *ctx = outlink->src;
1353		✗	AVFilterLink *inlink = ctx->inputs[0];
1354		✗	ShowCQTContext *s = ctx->priv;
1355		✗	float scale = 1.f;
1356			int ret;
1357
1358		✗	common_uninit(s);
1359
1360		✗	outlink->w = s->width;
1361		✗	outlink->h = s->height;
1362		✗	s->format = outlink->format;
1363		✗	outlink->sample_aspect_ratio = av_make_q(1, 1);
1364		✗	l->frame_rate = s->rate;
1365		✗	outlink->time_base = av_inv_q(s->rate);
1366		✗	av_log(ctx, AV_LOG_VERBOSE, "video: %dx%d %s %d/%d fps, bar_h = %d, axis_h = %d, sono_h = %d.\n",
1367			s->width, s->height, av_get_pix_fmt_name(s->format), s->rate.num, s->rate.den,
1368			s->bar_h, s->axis_h, s->sono_h);
1369
1370		✗	s->cqt_len = s->width * s->fcount;
1371		✗	if (!(s->freq = create_freq_table(s->basefreq, s->endfreq, s->cqt_len)))
1372		✗	return AVERROR(ENOMEM);
1373
1374		✗	if ((ret = init_volume(s)) < 0)
1375		✗	return ret;
1376
1377		✗	s->fft_bits = FFMAX(ceil(log2(inlink->sample_rate * s->timeclamp)), 4);
1378		✗	s->fft_len = 1 << s->fft_bits;
1379		✗	av_log(ctx, AV_LOG_VERBOSE, "fft_len = %d, cqt_len = %d.\n", s->fft_len, s->cqt_len);
1380
1381		✗	ret = av_tx_init(&s->fft_ctx, &s->tx_fn, AV_TX_FLOAT_FFT, 0, s->fft_len, &scale, 0);
1382		✗	s->fft_data = av_calloc(s->fft_len, sizeof(*s->fft_data));
1383		✗	s->fft_input = av_calloc(FFALIGN(s->fft_len + 64, 256), sizeof(*s->fft_input));
1384		✗	s->fft_result = av_calloc(FFALIGN(s->fft_len + 64, 256), sizeof(*s->fft_result));
1385		✗	s->cqt_result = av_malloc_array(s->cqt_len, sizeof(*s->cqt_result));
1386		✗	if (!s->fft_ctx || !s->fft_data || !s->fft_result || !s->cqt_result)
1387		✗	return AVERROR(ENOMEM);
1388
1389		✗	s->remaining_fill_max = s->fft_len / 2;
1390		✗	if (s->attack > 0.0) {
1391			int k;
1392
1393		✗	s->remaining_fill_max = FFMIN(s->remaining_fill_max, ceil(inlink->sample_rate * s->attack));
1394		✗	s->attack_data = av_malloc_array(s->remaining_fill_max, sizeof(*s->attack_data));
1395		✗	if (!s->attack_data)
1396		✗	return AVERROR(ENOMEM);
1397
1398		✗	for (k = 0; k < s->remaining_fill_max; k++) {
1399		✗	double y = M_PI * k / (inlink->sample_rate * s->attack);
1400		✗	s->attack_data[k] = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
1401			}
1402			}
1403
1404		✗	s->cqt_align = 1;
1405		✗	s->cqt_calc = cqt_calc;
1406		✗	s->permute_coeffs = NULL;
1407		✗	s->draw_sono = draw_sono;
1408		✗	if (s->format == AV_PIX_FMT_RGB24) {
1409		✗	s->draw_bar = draw_bar_rgb;
1410		✗	s->draw_axis = draw_axis_rgb;
1411		✗	s->update_sono = update_sono_rgb;
1412			} else {
1413		✗	s->draw_bar = draw_bar_yuv;
1414		✗	s->draw_axis = draw_axis_yuv;
1415		✗	s->update_sono = update_sono_yuv;
1416			}
1417
1418			#if ARCH_X86 && HAVE_X86ASM
1419		✗	ff_showcqt_init_x86(s);
1420			#endif
1421
1422		✗	if ((ret = init_cqt(s)) < 0)
1423		✗	return ret;
1424
1425		✗	if (s->axis_h) {
1426		✗	if (!s->axis) {
1427		✗	if ((ret = init_axis_empty(s)) < 0)
1428		✗	return ret;
1429		✗	} else if (s->axisfile) {
1430		✗	if (init_axis_from_file(s) < 0) {
1431		✗	av_log(ctx, AV_LOG_WARNING, "loading axis image failed, fallback to font rendering.\n");
1432		✗	if (init_axis_from_font(s) < 0) {
1433		✗	av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1434		✗	if ((ret = init_axis_empty(s)) < 0)
1435		✗	return ret;
1436			}
1437			}
1438			} else {
1439		✗	if (init_axis_from_font(s) < 0) {
1440		✗	av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1441		✗	if ((ret = init_axis_empty(s)) < 0)
1442		✗	return ret;
1443			}
1444			}
1445			}
1446
1447		✗	if (s->sono_h) {
1448		✗	s->sono_frame = alloc_frame_empty((outlink->format == AV_PIX_FMT_YUV420P) ?
1449			AV_PIX_FMT_YUV422P : outlink->format, s->width, s->sono_h);
1450		✗	if (!s->sono_frame)
1451		✗	return AVERROR(ENOMEM);
1452			}
1453
1454		✗	s->h_buf = av_malloc_array(s->cqt_len, sizeof (*s->h_buf));
1455		✗	s->rcp_h_buf = av_malloc_array(s->width, sizeof(*s->rcp_h_buf));
1456		✗	s->c_buf = av_malloc_array(s->width, sizeof(*s->c_buf));
1457		✗	if (!s->h_buf || !s->rcp_h_buf || !s->c_buf)
1458		✗	return AVERROR(ENOMEM);
1459
1460		✗	s->sono_count = 0;
1461		✗	s->next_pts = 0;
1462		✗	s->sono_idx = 0;
1463		✗	s->remaining_fill = s->remaining_fill_max;
1464		✗	s->remaining_frac = 0;
1465		✗	s->step_frac = av_div_q(av_make_q(inlink->sample_rate, s->count) , s->rate);
1466		✗	s->step = (int)(s->step_frac.num / s->step_frac.den);
1467		✗	s->step_frac.num %= s->step_frac.den;
1468		✗	if (s->step_frac.num) {
1469		✗	av_log(ctx, AV_LOG_VERBOSE, "audio: %d Hz, step = %d + %d/%d.\n",
1470			inlink->sample_rate, s->step, s->step_frac.num, s->step_frac.den);
1471			} else {
1472		✗	av_log(ctx, AV_LOG_VERBOSE, "audio: %d Hz, step = %d.\n",
1473			inlink->sample_rate, s->step);
1474			}
1475
1476		✗	return 0;
1477			}
1478
1479
1480		✗	static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
1481			{
1482		✗	AVFilterContext *ctx = inlink->dst;
1483		✗	AVFilterLink *outlink = ctx->outputs[0];
1484		✗	ShowCQTContext *s = ctx->priv;
1485		✗	int remaining, step, ret, x, i, j, m, got_frame = 0;
1486			float *audio_data;
1487		✗	AVFrame *out = NULL;
1488
1489		✗	if (!insamples) {
1490		✗	while (s->remaining_fill < s->remaining_fill_max) {
1491		✗	memset(&s->fft_data[s->fft_len/2 + s->remaining_fill_max - s->remaining_fill], 0, sizeof(*s->fft_data) * s->remaining_fill);
1492		✗	ret = plot_cqt(ctx, &out);
1493		✗	if (ret < 0)
1494		✗	return ret;
1495
1496		✗	step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1497		✗	s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1498		✗	for (x = 0; x < (s->fft_len/2 + s->remaining_fill_max - step); x++)
1499		✗	s->fft_data[x] = s->fft_data[x+step];
1500		✗	s->remaining_fill += step;
1501		✗	s->next_pts++;
1502
1503		✗	if (out) {
1504		✗	out->pts = s->next_pts;
1505		✗	out->duration = 1;
1506		✗	return ff_filter_frame(outlink, out);
1507			}
1508			}
1509		✗	return 0;
1510			}
1511
1512		✗	remaining = insamples->nb_samples;
1513		✗	audio_data = (float*) insamples->data[0];
1514
1515		✗	while (remaining) {
1516		✗	i = insamples->nb_samples - remaining;
1517		✗	j = s->fft_len/2 + s->remaining_fill_max - s->remaining_fill;
1518		✗	if (remaining >= s->remaining_fill) {
1519		✗	for (m = FFMAX(0, -j); m < s->remaining_fill; m++) {
1520		✗	s->fft_data[j+m].re = audio_data[2*(i+m)];
1521		✗	s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1522			}
1523		✗	ret = plot_cqt(ctx, &out);
1524		✗	if (ret < 0) {
1525		✗	av_frame_free(&insamples);
1526		✗	return ret;
1527			}
1528		✗	remaining -= s->remaining_fill;
1529		✗	if (out) {
1530		✗	int64_t pts = av_rescale_q(insamples->nb_samples - remaining - s->remaining_fill_max,
1531			av_make_q(1, inlink->sample_rate), inlink->time_base);
1532		✗	out->pts = av_rescale_q(insamples->pts + pts, inlink->time_base, outlink->time_base);
1533		✗	out->duration = 1;
1534		✗	got_frame = 1;
1535		✗	ret = ff_filter_frame(outlink, out);
1536		✗	if (ret < 0) {
1537		✗	av_frame_free(&insamples);
1538		✗	return ret;
1539			}
1540		✗	out = NULL;
1541			}
1542		✗	step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1543		✗	s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1544		✗	for (m = 0; m < s->fft_len/2 + s->remaining_fill_max - step; m++)
1545		✗	s->fft_data[m] = s->fft_data[m+step];
1546		✗	s->remaining_fill = step;
1547			} else {
1548		✗	for (m = FFMAX(0, -j); m < remaining; m++) {
1549		✗	s->fft_data[j+m].re = audio_data[2*(i+m)];
1550		✗	s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1551			}
1552		✗	s->remaining_fill -= remaining;
1553		✗	remaining = 0;
1554			}
1555			}
1556		✗	if (!got_frame)
1557		✗	ff_filter_set_ready(ctx, 100);
1558		✗	av_frame_free(&insamples);
1559		✗	return 0;
1560			}
1561
1562		✗	static int activate(AVFilterContext *ctx)
1563			{
1564		✗	AVFilterLink *inlink = ctx->inputs[0];
1565		✗	AVFilterLink *outlink = ctx->outputs[0];
1566		✗	ShowCQTContext *s = ctx->priv;
1567			int nb_samples, ret, status;
1568			int64_t pts;
1569			AVFrame *in;
1570
1571		✗	FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
1572
1573		✗	nb_samples = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1574		✗	ret = ff_inlink_consume_samples(inlink, nb_samples, nb_samples, &in);
1575		✗	if (ret < 0)
1576		✗	return ret;
1577		✗	if (ret > 0)
1578		✗	return filter_frame(inlink, in);
1579
1580		✗	if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
1581		✗	if (status == AVERROR_EOF) {
1582		✗	s->next_pts = av_rescale_q(pts, inlink->time_base, outlink->time_base);
1583		✗	ret = filter_frame(inlink, NULL);
1584		✗	ff_outlink_set_status(outlink, AVERROR_EOF, s->next_pts);
1585		✗	return ret;
1586			}
1587			}
1588
1589		✗	FF_FILTER_FORWARD_WANTED(outlink, inlink);
1590
1591		✗	return FFERROR_NOT_READY;
1592			}
1593
1594			static const AVFilterPad showcqt_outputs[] = {
1595			{
1596			.name = "default",
1597			.type = AVMEDIA_TYPE_VIDEO,
1598			.config_props = config_output,
1599			},
1600			};
1601
1602			const FFFilter ff_avf_showcqt = {
1603			.p.name = "showcqt",
1604			.p.description = NULL_IF_CONFIG_SMALL("Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output."),
1605			.p.priv_class = &showcqt_class,
1606			.init = init,
1607			.activate = activate,
1608			.uninit = uninit,
1609			.priv_size = sizeof(ShowCQTContext),
1610			FILTER_INPUTS(ff_audio_default_filterpad),
1611			FILTER_OUTPUTS(showcqt_outputs),
1612			FILTER_QUERY_FUNC2(query_formats),
1613			};
1614