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/tx.h"
23			#include "libavutil/channel_layout.h"
24			#include "libavutil/opt.h"
25			#include "libavutil/xga_font_data.h"
26			#include "libavutil/eval.h"
27			#include "libavutil/pixdesc.h"
28			#include "libavutil/time.h"
29			#include "avfilter.h"
30			#include "internal.h"
31			#include "lavfutils.h"
32			#include "lswsutils.h"
33
34			#if CONFIG_LIBFREETYPE
35			#include <ft2build.h>
36			#include FT_FREETYPE_H
37			#endif
38
39			#if CONFIG_LIBFONTCONFIG
40			#include <fontconfig/fontconfig.h>
41			#endif
42
43			#include "avf_showcqt.h"
44
45			#define BASEFREQ 20.01523126408007475
46			#define ENDFREQ 20495.59681441799654
47			#define TLENGTH "384*tc/(384+tc*f)"
48			#define TLENGTH_MIN 0.001
49			#define VOLUME_MAX 100.0
50			#define FONTCOLOR "st(0, (midi(f)-59.5)/12);" \
51			"st(1, if(between(ld(0),0,1), 0.5-0.5*cos(2*PI*ld(0)), 0));" \
52			"r(1-ld(1)) + b(ld(1))"
53			#define CSCHEME "1|0.5|0|0|0.5|1"
54			#define PTS_STEP 10
55			#define PTS_TOLERANCE 1
56
57			#define OFFSET(x) offsetof(ShowCQTContext, x)
58			#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
59
60			static const AVOption showcqt_options[] = {
61			{ "size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
62			{ "s", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
63			{ "fps", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
64			{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
65			{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 1, 1000, FLAGS },
66			{ "bar_h", "set bargraph height", OFFSET(bar_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
67			{ "axis_h", "set axis height", OFFSET(axis_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
68			{ "sono_h", "set sonogram height", OFFSET(sono_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
69			{ "fullhd", "set fullhd size", OFFSET(fullhd), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
70			{ "sono_v", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, 0, 0, FLAGS },
71			{ "volume", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, 0, 0, FLAGS },
72			{ "bar_v", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, 0, 0, FLAGS },
73			{ "volume2", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, 0, 0, FLAGS },
74			{ "sono_g", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
75			{ "gamma", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
76			{ "bar_g", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
77			{ "gamma2", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
78			{ "bar_t", "set bar transparency", OFFSET(bar_t), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, FLAGS },
79			{ "timeclamp", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
80			{ "tc", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.002, 1.0, FLAGS },
81			{ "attack", "set attack time", OFFSET(attack), AV_OPT_TYPE_DOUBLE, { .dbl = 0 }, 0.0, 1.0, FLAGS },
82			{ "basefreq", "set base frequency", OFFSET(basefreq), AV_OPT_TYPE_DOUBLE, { .dbl = BASEFREQ }, 10.0, 100000.0, FLAGS },
83			{ "endfreq", "set end frequency", OFFSET(endfreq), AV_OPT_TYPE_DOUBLE, { .dbl = ENDFREQ }, 10.0, 100000.0, FLAGS },
84			{ "coeffclamp", "set coeffclamp", OFFSET(coeffclamp), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.1, 10.0, FLAGS },
85			{ "tlength", "set tlength", OFFSET(tlength), AV_OPT_TYPE_STRING, { .str = TLENGTH }, 0, 0, FLAGS },
86			{ "count", "set transform count", OFFSET(count), AV_OPT_TYPE_INT, { .i64 = 6 }, 1, 30, FLAGS },
87			{ "fcount", "set frequency count", OFFSET(fcount), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, FLAGS },
88			{ "fontfile", "set axis font file", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
89			{ "font", "set axis font", OFFSET(font), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
90			{ "fontcolor", "set font color", OFFSET(fontcolor), AV_OPT_TYPE_STRING, { .str = FONTCOLOR }, 0, 0, FLAGS },
91			{ "axisfile", "set axis image", OFFSET(axisfile), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS },
92			{ "axis", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
93			{ "text", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
94			{ "csp", "set color space", OFFSET(csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, FLAGS, "csp" },
95			{ "unspecified", "unspecified", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, 0, FLAGS, "csp" },
96			{ "bt709", "bt709", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT709 }, 0, 0, FLAGS, "csp" },
97			{ "fcc", "fcc", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_FCC }, 0, 0, FLAGS, "csp" },
98			{ "bt470bg", "bt470bg", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT470BG }, 0, 0, FLAGS, "csp" },
99			{ "smpte170m", "smpte170m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE170M }, 0, 0, FLAGS, "csp" },
100			{ "smpte240m", "smpte240m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE240M }, 0, 0, FLAGS, "csp" },
101			{ "bt2020ncl", "bt2020ncl", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT2020_NCL }, 0, 0, FLAGS, "csp" },
102			{ "cscheme", "set color scheme", OFFSET(cscheme), AV_OPT_TYPE_STRING, { .str = CSCHEME }, 0, 0, FLAGS },
103			{ NULL }
104			};
105
106			AVFILTER_DEFINE_CLASS(showcqt);
107
108		✗	static void common_uninit(ShowCQTContext *s)
109			{
110			int k;
111		✗	int level = AV_LOG_DEBUG;
112			int64_t plot_time;
113
114		✗	if (s->fft_time)
115		✗	av_log(s->ctx, level, "fft_time = %16.3f s.\n", s->fft_time * 1e-6);
116		✗	if (s->cqt_time)
117		✗	av_log(s->ctx, level, "cqt_time = %16.3f s.\n", s->cqt_time * 1e-6);
118		✗	if (s->process_cqt_time)
119		✗	av_log(s->ctx, level, "process_cqt_time = %16.3f s.\n", s->process_cqt_time * 1e-6);
120		✗	if (s->update_sono_time)
121		✗	av_log(s->ctx, level, "update_sono_time = %16.3f s.\n", s->update_sono_time * 1e-6);
122		✗	if (s->alloc_time)
123		✗	av_log(s->ctx, level, "alloc_time = %16.3f s.\n", s->alloc_time * 1e-6);
124		✗	if (s->bar_time)
125		✗	av_log(s->ctx, level, "bar_time = %16.3f s.\n", s->bar_time * 1e-6);
126		✗	if (s->axis_time)
127		✗	av_log(s->ctx, level, "axis_time = %16.3f s.\n", s->axis_time * 1e-6);
128		✗	if (s->sono_time)
129		✗	av_log(s->ctx, level, "sono_time = %16.3f s.\n", s->sono_time * 1e-6);
130
131		✗	plot_time = s->fft_time + s->cqt_time + s->process_cqt_time + s->update_sono_time
132		✗	+ s->alloc_time + s->bar_time + s->axis_time + s->sono_time;
133		✗	if (plot_time)
134		✗	av_log(s->ctx, level, "plot_time = %16.3f s.\n", plot_time * 1e-6);
135
136		✗	s->fft_time = s->cqt_time = s->process_cqt_time = s->update_sono_time
137		✗	= s->alloc_time = s->bar_time = s->axis_time = s->sono_time = 0;
138			/* axis_frame may be non reference counted frame */
139		✗	if (s->axis_frame && !s->axis_frame->buf[0]) {
140		✗	av_freep(s->axis_frame->data);
141		✗	for (k = 0; k < 4; k++)
142		✗	s->axis_frame->data[k] = NULL;
143			}
144
145		✗	av_frame_free(&s->axis_frame);
146		✗	av_frame_free(&s->sono_frame);
147		✗	av_tx_uninit(&s->fft_ctx);
148		✗	if (s->coeffs)
149		✗	for (k = 0; k < s->cqt_len; k++)
150		✗	av_freep(&s->coeffs[k].val);
151		✗	av_freep(&s->coeffs);
152		✗	av_freep(&s->fft_data);
153		✗	av_freep(&s->fft_input);
154		✗	av_freep(&s->fft_result);
155		✗	av_freep(&s->cqt_result);
156		✗	av_freep(&s->attack_data);
157		✗	av_freep(&s->c_buf);
158		✗	av_freep(&s->h_buf);
159		✗	av_freep(&s->rcp_h_buf);
160		✗	av_freep(&s->freq);
161		✗	av_freep(&s->sono_v_buf);
162		✗	av_freep(&s->bar_v_buf);
163			}
164
165		✗	static double *create_freq_table(double base, double end, int n)
166			{
167			double log_base, log_end;
168		✗	double rcp_n = 1.0 / n;
169			double *freq;
170			int x;
171
172		✗	freq = av_malloc_array(n, sizeof(*freq));
173		✗	if (!freq)
174		✗	return NULL;
175
176		✗	log_base = log(base);
177		✗	log_end = log(end);
178		✗	for (x = 0; x < n; x++) {
179		✗	double log_freq = log_base + (x + 0.5) * (log_end - log_base) * rcp_n;
180		✗	freq[x] = exp(log_freq);
181			}
182		✗	return freq;
183			}
184
185		✗	static double clip_with_log(void *log_ctx, const char *name,
186			double val, double min, double max,
187			double nan_replace, int idx)
188			{
189		✗	int level = AV_LOG_WARNING;
190		✗	if (isnan(val)) {
191		✗	av_log(log_ctx, level, "[%d] %s is nan, setting it to %g.\n",
192			idx, name, nan_replace);
193		✗	val = nan_replace;
194		✗	} else if (val < min) {
195		✗	av_log(log_ctx, level, "[%d] %s is too low (%g), setting it to %g.\n",
196			idx, name, val, min);
197		✗	val = min;
198		✗	} else if (val > max) {
199		✗	av_log(log_ctx, level, "[%d] %s it too high (%g), setting it to %g.\n",
200			idx, name, val, max);
201		✗	val = max;
202			}
203		✗	return val;
204			}
205
206		✗	static double a_weighting(void *p, double f)
207			{
208		✗	double ret = 12200.0*12200.0 * (f*f*f*f);
209		✗	ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) *
210		✗	sqrt((f*f + 107.7*107.7) * (f*f + 737.9*737.9));
211		✗	return ret;
212			}
213
214		✗	static double b_weighting(void *p, double f)
215			{
216		✗	double ret = 12200.0*12200.0 * (f*f*f);
217		✗	ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * sqrt(f*f + 158.5*158.5);
218		✗	return ret;
219			}
220
221		✗	static double c_weighting(void *p, double f)
222			{
223		✗	double ret = 12200.0*12200.0 * (f*f);
224		✗	ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0);
225		✗	return ret;
226			}
227
228		✗	static int init_volume(ShowCQTContext *s)
229			{
230		✗	const char *func_names[] = { "a_weighting", "b_weighting", "c_weighting", NULL };
231		✗	const char *sono_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "bar_v", NULL };
232		✗	const char *bar_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "sono_v", NULL };
233		✗	double (*funcs[])(void *, double) = { a_weighting, b_weighting, c_weighting };
234		✗	AVExpr *sono = NULL, *bar = NULL;
235		✗	int x, ret = AVERROR(ENOMEM);
236
237		✗	s->sono_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->sono_v_buf));
238		✗	s->bar_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->bar_v_buf));
239		✗	if (!s->sono_v_buf || !s->bar_v_buf)
240		✗	goto error;
241
242		✗	if ((ret = av_expr_parse(&sono, s->sono_v, sono_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
243		✗	goto error;
244
245		✗	if ((ret = av_expr_parse(&bar, s->bar_v, bar_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
246		✗	goto error;
247
248		✗	for (x = 0; x < s->cqt_len; x++) {
249		✗	double vars[] = { s->timeclamp, s->timeclamp, s->freq[x], s->freq[x], s->freq[x], 0.0 };
250		✗	double vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
251		✗	vars[5] = vol;
252		✗	vol = clip_with_log(s->ctx, "bar_v", av_expr_eval(bar, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
253		✗	s->bar_v_buf[x] = vol * vol;
254		✗	vars[5] = vol;
255		✗	vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
256		✗	s->sono_v_buf[x] = vol * vol;
257			}
258		✗	av_expr_free(sono);
259		✗	av_expr_free(bar);
260		✗	return 0;
261
262		✗	error:
263		✗	av_freep(&s->sono_v_buf);
264		✗	av_freep(&s->bar_v_buf);
265		✗	av_expr_free(sono);
266		✗	av_expr_free(bar);
267		✗	return ret;
268			}
269
270		✗	static void cqt_calc(AVComplexFloat *dst, const AVComplexFloat *src, const Coeffs *coeffs,
271			int len, int fft_len)
272			{
273			int k, x, i, j;
274		✗	for (k = 0; k < len; k++) {
275		✗	AVComplexFloat l, r, a = {0,0}, b = {0,0};
276
277		✗	for (x = 0; x < coeffs[k].len; x++) {
278		✗	float u = coeffs[k].val[x];
279		✗	i = coeffs[k].start + x;
280		✗	j = fft_len - i;
281		✗	a.re += u * src[i].re;
282		✗	a.im += u * src[i].im;
283		✗	b.re += u * src[j].re;
284		✗	b.im += u * src[j].im;
285			}
286
287			/* separate left and right, (and multiply by 2.0) */
288		✗	l.re = a.re + b.re;
289		✗	l.im = a.im - b.im;
290		✗	r.re = b.im + a.im;
291		✗	r.im = b.re - a.re;
292		✗	dst[k].re = l.re * l.re + l.im * l.im;
293		✗	dst[k].im = r.re * r.re + r.im * r.im;
294			}
295			}
296
297		✗	static int init_cqt(ShowCQTContext *s)
298			{
299		✗	const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
300		✗	AVExpr *expr = NULL;
301		✗	int rate = s->ctx->inputs[0]->sample_rate;
302		✗	int nb_cqt_coeffs = 0;
303			int k, x, ret;
304
305		✗	if ((ret = av_expr_parse(&expr, s->tlength, var_names, NULL, NULL, NULL, NULL, 0, s->ctx)) < 0)
306		✗	goto error;
307
308		✗	ret = AVERROR(ENOMEM);
309		✗	if (!(s->coeffs = av_calloc(s->cqt_len, sizeof(*s->coeffs))))
310		✗	goto error;
311
312		✗	for (k = 0; k < s->cqt_len; k++) {
313		✗	double vars[] = { s->timeclamp, s->timeclamp, s->freq[k], s->freq[k], s->freq[k] };
314			double flen, center, tlength;
315		✗	int start, end, m = k;
316
317		✗	if (s->freq[k] > 0.5 * rate)
318		✗	continue;
319		✗	tlength = clip_with_log(s->ctx, "tlength", av_expr_eval(expr, vars, NULL),
320			TLENGTH_MIN, s->timeclamp, s->timeclamp, k);
321
322		✗	flen = 8.0 * s->fft_len / (tlength * rate);
323		✗	center = s->freq[k] * s->fft_len / rate;
324		✗	start = FFMAX(0, ceil(center - 0.5 * flen));
325		✗	end = FFMIN(s->fft_len, floor(center + 0.5 * flen));
326
327		✗	s->coeffs[m].start = start & ~(s->cqt_align - 1);
328		✗	s->coeffs[m].len = (end | (s->cqt_align - 1)) + 1 - s->coeffs[m].start;
329		✗	nb_cqt_coeffs += s->coeffs[m].len;
330		✗	if (!(s->coeffs[m].val = av_calloc(s->coeffs[m].len, sizeof(*s->coeffs[m].val))))
331		✗	goto error;
332
333		✗	for (x = start; x <= end; x++) {
334		✗	int sign = (x & 1) ? (-1) : 1;
335		✗	double y = 2.0 * M_PI * (x - center) * (1.0 / flen);
336			/* nuttall window */
337		✗	double w = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
338		✗	w *= sign * (1.0 / s->fft_len);
339		✗	s->coeffs[m].val[x - s->coeffs[m].start] = w;
340			}
341
342		✗	if (s->permute_coeffs)
343		✗	s->permute_coeffs(s->coeffs[m].val, s->coeffs[m].len);
344			}
345
346		✗	av_expr_free(expr);
347		✗	av_log(s->ctx, AV_LOG_INFO, "nb_cqt_coeffs = %d.\n", nb_cqt_coeffs);
348		✗	return 0;
349
350		✗	error:
351		✗	av_expr_free(expr);
352		✗	if (s->coeffs)
353		✗	for (k = 0; k < s->cqt_len; k++)
354		✗	av_freep(&s->coeffs[k].val);
355		✗	av_freep(&s->coeffs);
356		✗	return ret;
357			}
358
359		✗	static AVFrame *alloc_frame_empty(enum AVPixelFormat format, int w, int h)
360			{
361			AVFrame *out;
362		✗	out = av_frame_alloc();
363		✗	if (!out)
364		✗	return NULL;
365		✗	out->format = format;
366		✗	out->width = w;
367		✗	out->height = h;
368		✗	if (av_frame_get_buffer(out, 0) < 0) {
369		✗	av_frame_free(&out);
370		✗	return NULL;
371			}
372		✗	if (format == AV_PIX_FMT_RGB24 || format == AV_PIX_FMT_RGBA) {
373		✗	memset(out->data[0], 0, out->linesize[0] * h);
374			} else {
375		✗	int hh = (format == AV_PIX_FMT_YUV420P || format == AV_PIX_FMT_YUVA420P) ? h / 2 : h;
376		✗	memset(out->data[0], 16, out->linesize[0] * h);
377		✗	memset(out->data[1], 128, out->linesize[1] * hh);
378		✗	memset(out->data[2], 128, out->linesize[2] * hh);
379		✗	if (out->data[3])
380		✗	memset(out->data[3], 0, out->linesize[3] * h);
381			}
382		✗	return out;
383			}
384
385		✗	static enum AVPixelFormat convert_axis_pixel_format(enum AVPixelFormat format)
386			{
387		✗	switch (format) {
388		✗	case AV_PIX_FMT_RGB24: format = AV_PIX_FMT_RGBA; break;
389		✗	case AV_PIX_FMT_YUV444P:
390			case AV_PIX_FMT_YUV422P:
391		✗	case AV_PIX_FMT_YUV420P: format = AV_PIX_FMT_YUVA444P; break;
392			}
393		✗	return format;
394			}
395
396		✗	static int init_axis_empty(ShowCQTContext *s)
397			{
398		✗	if (!(s->axis_frame = alloc_frame_empty(convert_axis_pixel_format(s->format), s->width, s->axis_h)))
399		✗	return AVERROR(ENOMEM);
400		✗	return 0;
401			}
402
403		✗	static int init_axis_from_file(ShowCQTContext *s)
404			{
405		✗	uint8_t *tmp_data[4] = { NULL };
406			int tmp_linesize[4];
407			enum AVPixelFormat tmp_format;
408			int tmp_w, tmp_h, ret;
409
410		✗	if ((ret = ff_load_image(tmp_data, tmp_linesize, &tmp_w, &tmp_h, &tmp_format,
411		✗	s->axisfile, s->ctx)) < 0)
412		✗	goto error;
413
414		✗	ret = AVERROR(ENOMEM);
415		✗	if (!(s->axis_frame = av_frame_alloc()))
416		✗	goto error;
417
418		✗	if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
419			convert_axis_pixel_format(s->format), tmp_data, tmp_linesize, tmp_w, tmp_h,
420		✗	tmp_format, s->ctx)) < 0)
421		✗	goto error;
422
423		✗	s->axis_frame->width = s->width;
424		✗	s->axis_frame->height = s->axis_h;
425		✗	s->axis_frame->format = convert_axis_pixel_format(s->format);
426		✗	av_freep(tmp_data);
427		✗	return 0;
428
429		✗	error:
430		✗	av_frame_free(&s->axis_frame);
431		✗	av_freep(tmp_data);
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 substitue 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			int x, u, v, mask;
657		✗	uint8_t *data = tmp->data[0];
658		✗	int linesize = tmp->linesize[0];
659		✗	int width = 1920/2, height = 16;
660
661		✗	for (x = 0; x < width; x += width/10) {
662		✗	uint8_t *startptr = data + 4 * x;
663		✗	for (u = 0; u < 12; u++) {
664		✗	for (v = 0; v < height; v++) {
665		✗	uint8_t *p = startptr + v * linesize + height/2 * 4 * u;
666		✗	for (mask = 0x80; mask; mask >>= 1, p += 4) {
667		✗	if (mask & avpriv_vga16_font[str[u] * 16 + v])
668		✗	p[3] = 255;
669			else
670		✗	p[3] = 0;
671			}
672			}
673			}
674			}
675
676		✗	return 0;
677			}
678
679		✗	static int init_axis_from_font(ShowCQTContext *s)
680			{
681		✗	AVFrame *tmp = NULL;
682		✗	int ret = AVERROR(ENOMEM);
683		✗	int width = 1920, height = 32;
684		✗	int default_font = 0;
685
686		✗	if (!(tmp = alloc_frame_empty(AV_PIX_FMT_RGBA, width, height)))
687		✗	goto fail;
688
689		✗	if (!(s->axis_frame = av_frame_alloc()))
690		✗	goto fail;
691
692		✗	if (render_freetype(s, tmp, s->fontfile) < 0 &&
693		✗	render_fontconfig(s, tmp, s->font) < 0 &&
694		✗	(default_font = 1, ret = render_default_font(tmp)) < 0)
695		✗	goto fail;
696
697		✗	if (default_font)
698		✗	width /= 2, height /= 2;
699
700		✗	if ((ret = init_axis_color(s, tmp, default_font)) < 0)
701		✗	goto fail;
702
703		✗	if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
704		✗	convert_axis_pixel_format(s->format), tmp->data, tmp->linesize,
705		✗	width, height, AV_PIX_FMT_RGBA, s->ctx)) < 0)
706		✗	goto fail;
707
708		✗	av_frame_free(&tmp);
709		✗	s->axis_frame->width = s->width;
710		✗	s->axis_frame->height = s->axis_h;
711		✗	s->axis_frame->format = convert_axis_pixel_format(s->format);
712		✗	return 0;
713
714		✗	fail:
715		✗	av_frame_free(&tmp);
716		✗	av_frame_free(&s->axis_frame);
717		✗	return ret;
718			}
719
720		✗	static float calculate_gamma(float v, float g)
721			{
722		✗	if (g == 1.0f)
723		✗	return v;
724		✗	if (g == 2.0f)
725		✗	return sqrtf(v);
726		✗	if (g == 3.0f)
727		✗	return cbrtf(v);
728		✗	if (g == 4.0f)
729		✗	return sqrtf(sqrtf(v));
730		✗	return expf(logf(v) / g);
731			}
732
733		✗	static void rgb_from_cqt(ColorFloat *c, const AVComplexFloat *v, float g, int len, float cscheme[6])
734			{
735			int x;
736		✗	for (x = 0; x < len; x++) {
737		✗	c[x].rgb.r = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), g);
738		✗	c[x].rgb.g = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), g);
739		✗	c[x].rgb.b = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), g);
740			}
741			}
742
743		✗	static void yuv_from_cqt(ColorFloat *c, const AVComplexFloat *v, float gamma, int len, float cm[3][3], float cscheme[6])
744			{
745			int x;
746		✗	for (x = 0; x < len; x++) {
747			float r, g, b;
748		✗	r = calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), gamma);
749		✗	g = calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), gamma);
750		✗	b = calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), gamma);
751		✗	c[x].yuv.y = cm[0][0] * r + cm[0][1] * g + cm[0][2] * b;
752		✗	c[x].yuv.u = cm[1][0] * r + cm[1][1] * g + cm[1][2] * b;
753		✗	c[x].yuv.v = cm[2][0] * r + cm[2][1] * g + cm[2][2] * b;
754			}
755			}
756
757		✗	static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
758			const ColorFloat *c, int bar_h, float bar_t)
759			{
760		✗	int x, y, w = out->width;
761		✗	float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
762		✗	uint8_t *v = out->data[0], *lp;
763		✗	int ls = out->linesize[0];
764
765		✗	for (y = 0; y < bar_h; y++) {
766		✗	ht = (bar_h - y) * rcp_bar_h;
767		✗	lp = v + y * ls;
768		✗	for (x = 0; x < w; x++) {
769		✗	if (h[x] <= ht) {
770		✗	*lp++ = 0;
771		✗	*lp++ = 0;
772		✗	*lp++ = 0;
773			} else {
774		✗	mul = (h[x] - ht) * rcp_h[x];
775		✗	mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f;
776		✗	*lp++ = lrintf(mul * c[x].rgb.r);
777		✗	*lp++ = lrintf(mul * c[x].rgb.g);
778		✗	*lp++ = lrintf(mul * c[x].rgb.b);
779			}
780			}
781			}
782			}
783
784			#define DRAW_BAR_WITH_CHROMA(x) \
785			do { \
786			if (h[x] <= ht) { \
787			*lpy++ = 16; \
788			*lpu++ = 128; \
789			*lpv++ = 128; \
790			} else { \
791			mul = (h[x] - ht) * rcp_h[x]; \
792			mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
793			*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
794			*lpu++ = lrintf(mul * c[x].yuv.u + 128.0f); \
795			*lpv++ = lrintf(mul * c[x].yuv.v + 128.0f); \
796			} \
797			} while (0)
798
799			#define DRAW_BAR_WITHOUT_CHROMA(x) \
800			do { \
801			if (h[x] <= ht) { \
802			*lpy++ = 16; \
803			} else { \
804			mul = (h[x] - ht) * rcp_h[x]; \
805			mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
806			*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
807			} \
808			} while (0)
809
810		✗	static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h,
811			const ColorFloat *c, int bar_h, float bar_t)
812			{
813		✗	int x, y, yh, w = out->width;
814		✗	float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
815		✗	uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
816			uint8_t *lpy, *lpu, *lpv;
817		✗	int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
818		✗	int fmt = out->format;
819
820		✗	for (y = 0; y < bar_h; y += 2) {
821		✗	yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
822		✗	ht = (bar_h - y) * rcp_bar_h;
823		✗	lpy = vy + y * lsy;
824		✗	lpu = vu + yh * lsu;
825		✗	lpv = vv + yh * lsv;
826		✗	if (fmt == AV_PIX_FMT_YUV444P) {
827		✗	for (x = 0; x < w; x += 2) {
828		✗	DRAW_BAR_WITH_CHROMA(x);
829		✗	DRAW_BAR_WITH_CHROMA(x+1);
830			}
831			} else {
832		✗	for (x = 0; x < w; x += 2) {
833		✗	DRAW_BAR_WITH_CHROMA(x);
834		✗	DRAW_BAR_WITHOUT_CHROMA(x+1);
835			}
836			}
837
838		✗	ht = (bar_h - (y+1)) * rcp_bar_h;
839		✗	lpy = vy + (y+1) * lsy;
840		✗	lpu = vu + (y+1) * lsu;
841		✗	lpv = vv + (y+1) * lsv;
842		✗	if (fmt == AV_PIX_FMT_YUV444P) {
843		✗	for (x = 0; x < w; x += 2) {
844		✗	DRAW_BAR_WITH_CHROMA(x);
845		✗	DRAW_BAR_WITH_CHROMA(x+1);
846			}
847		✗	} else if (fmt == AV_PIX_FMT_YUV422P) {
848		✗	for (x = 0; x < w; x += 2) {
849		✗	DRAW_BAR_WITH_CHROMA(x);
850		✗	DRAW_BAR_WITHOUT_CHROMA(x+1);
851			}
852			} else {
853		✗	for (x = 0; x < w; x += 2) {
854		✗	DRAW_BAR_WITHOUT_CHROMA(x);
855		✗	DRAW_BAR_WITHOUT_CHROMA(x+1);
856			}
857			}
858			}
859			}
860
861		✗	static void draw_axis_rgb(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
862			{
863		✗	int x, y, w = axis->width, h = axis->height;
864		✗	float a, rcp_255 = 1.0f / 255.0f;
865			uint8_t *lp, *lpa;
866
867		✗	for (y = 0; y < h; y++) {
868		✗	lp = out->data[0] + (off + y) * out->linesize[0];
869		✗	lpa = axis->data[0] + y * axis->linesize[0];
870		✗	for (x = 0; x < w; x++) {
871		✗	if (!lpa[3]) {
872		✗	*lp++ = lrintf(c[x].rgb.r);
873		✗	*lp++ = lrintf(c[x].rgb.g);
874		✗	*lp++ = lrintf(c[x].rgb.b);
875		✗	} else if (lpa[3] == 255) {
876		✗	*lp++ = lpa[0];
877		✗	*lp++ = lpa[1];
878		✗	*lp++ = lpa[2];
879			} else {
880		✗	a = rcp_255 * lpa[3];
881		✗	*lp++ = lrintf(a * lpa[0] + (1.0f - a) * c[x].rgb.r);
882		✗	*lp++ = lrintf(a * lpa[1] + (1.0f - a) * c[x].rgb.g);
883		✗	*lp++ = lrintf(a * lpa[2] + (1.0f - a) * c[x].rgb.b);
884			}
885		✗	lpa += 4;
886			}
887			}
888			}
889
890			#define BLEND_WITH_CHROMA(c) \
891			do { \
892			if (!*lpaa) { \
893			*lpy = lrintf(c.yuv.y + 16.0f); \
894			*lpu = lrintf(c.yuv.u + 128.0f); \
895			*lpv = lrintf(c.yuv.v + 128.0f); \
896			} else if (255 == *lpaa) { \
897			*lpy = *lpay; \
898			*lpu = *lpau; \
899			*lpv = *lpav; \
900			} else { \
901			float a = (1.0f/255.0f) * (*lpaa); \
902			*lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
903			*lpu = lrintf(a * (*lpau) + (1.0f - a) * (c.yuv.u + 128.0f)); \
904			*lpv = lrintf(a * (*lpav) + (1.0f - a) * (c.yuv.v + 128.0f)); \
905			} \
906			lpy++; lpu++; lpv++; \
907			lpay++; lpau++; lpav++; lpaa++; \
908			} while (0)
909
910			#define BLEND_WITHOUT_CHROMA(c, alpha_inc) \
911			do { \
912			if (!*lpaa) { \
913			*lpy = lrintf(c.yuv.y + 16.0f); \
914			} else if (255 == *lpaa) { \
915			*lpy = *lpay; \
916			} else { \
917			float a = (1.0f/255.0f) * (*lpaa); \
918			*lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
919			} \
920			lpy++; \
921			lpay++; lpaa += alpha_inc; \
922			} while (0)
923
924			#define BLEND_CHROMA2(c) \
925			do { \
926			if (!lpaa[0] && !lpaa[1]) { \
927			*lpu = lrintf(c.yuv.u + 128.0f); \
928			*lpv = lrintf(c.yuv.v + 128.0f); \
929			} else if (255 == lpaa[0] && 255 == lpaa[1]) { \
930			*lpu = *lpau; *lpv = *lpav; \
931			} else { \
932			float a0 = (0.5f/255.0f) * lpaa[0]; \
933			float a1 = (0.5f/255.0f) * lpaa[1]; \
934			float b = 1.0f - a0 - a1; \
935			*lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + b * (c.yuv.u + 128.0f)); \
936			*lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + b * (c.yuv.v + 128.0f)); \
937			} \
938			lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
939			} while (0)
940
941			#define BLEND_CHROMA2x2(c) \
942			do { \
943			if (!lpaa[0] && !lpaa[1] && !lpaa[lsaa] && !lpaa[lsaa+1]) { \
944			*lpu = lrintf(c.yuv.u + 128.0f); \
945			*lpv = lrintf(c.yuv.v + 128.0f); \
946			} else if (255 == lpaa[0] && 255 == lpaa[1] && \
947			255 == lpaa[lsaa] && 255 == lpaa[lsaa+1]) { \
948			*lpu = *lpau; *lpv = *lpav; \
949			} else { \
950			float a0 = (0.25f/255.0f) * lpaa[0]; \
951			float a1 = (0.25f/255.0f) * lpaa[1]; \
952			float a2 = (0.25f/255.0f) * lpaa[lsaa]; \
953			float a3 = (0.25f/255.0f) * lpaa[lsaa+1]; \
954			float b = 1.0f - a0 - a1 - a2 - a3; \
955			*lpu = lrintf(a0 * lpau[0] + a1 * lpau[1] + a2 * lpau[lsau] + a3 * lpau[lsau+1] \
956			+ b * (c.yuv.u + 128.0f)); \
957			*lpv = lrintf(a0 * lpav[0] + a1 * lpav[1] + a2 * lpav[lsav] + a3 * lpav[lsav+1] \
958			+ b * (c.yuv.v + 128.0f)); \
959			} \
960			lpau += 2; lpav += 2; lpaa++; lpu++; lpv++; \
961			} while (0)
962
963		✗	static void draw_axis_yuv(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
964			{
965		✗	int fmt = out->format, x, y, yh, w = axis->width, h = axis->height;
966		✗	int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
967		✗	uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
968		✗	uint8_t *vay = axis->data[0], *vau = axis->data[1], *vav = axis->data[2], *vaa = axis->data[3];
969		✗	int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
970		✗	int lsay = axis->linesize[0], lsau = axis->linesize[1], lsav = axis->linesize[2], lsaa = axis->linesize[3];
971			uint8_t *lpy, *lpu, *lpv, *lpay, *lpau, *lpav, *lpaa;
972
973		✗	for (y = 0; y < h; y += 2) {
974		✗	yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
975		✗	lpy = vy + (off + y) * lsy;
976		✗	lpu = vu + (offh + yh) * lsu;
977		✗	lpv = vv + (offh + yh) * lsv;
978		✗	lpay = vay + y * lsay;
979		✗	lpau = vau + y * lsau;
980		✗	lpav = vav + y * lsav;
981		✗	lpaa = vaa + y * lsaa;
982		✗	if (fmt == AV_PIX_FMT_YUV444P) {
983		✗	for (x = 0; x < w; x += 2) {
984		✗	BLEND_WITH_CHROMA(c[x]);
985		✗	BLEND_WITH_CHROMA(c[x+1]);
986			}
987		✗	} else if (fmt == AV_PIX_FMT_YUV422P) {
988		✗	for (x = 0; x < w; x += 2) {
989		✗	BLEND_WITHOUT_CHROMA(c[x], 0);
990		✗	BLEND_CHROMA2(c[x]);
991		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
992			}
993			} else {
994		✗	for (x = 0; x < w; x += 2) {
995		✗	BLEND_WITHOUT_CHROMA(c[x], 0);
996		✗	BLEND_CHROMA2x2(c[x]);
997		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
998			}
999			}
1000
1001		✗	lpy = vy + (off + y + 1) * lsy;
1002		✗	lpu = vu + (off + y + 1) * lsu;
1003		✗	lpv = vv + (off + y + 1) * lsv;
1004		✗	lpay = vay + (y + 1) * lsay;
1005		✗	lpau = vau + (y + 1) * lsau;
1006		✗	lpav = vav + (y + 1) * lsav;
1007		✗	lpaa = vaa + (y + 1) * lsaa;
1008		✗	if (fmt == AV_PIX_FMT_YUV444P) {
1009		✗	for (x = 0; x < w; x += 2) {
1010		✗	BLEND_WITH_CHROMA(c[x]);
1011		✗	BLEND_WITH_CHROMA(c[x+1]);
1012			}
1013		✗	} else if (fmt == AV_PIX_FMT_YUV422P) {
1014		✗	for (x = 0; x < w; x += 2) {
1015		✗	BLEND_WITHOUT_CHROMA(c[x], 0);
1016		✗	BLEND_CHROMA2(c[x]);
1017		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
1018			}
1019			} else {
1020		✗	for (x = 0; x < w; x += 2) {
1021		✗	BLEND_WITHOUT_CHROMA(c[x], 1);
1022		✗	BLEND_WITHOUT_CHROMA(c[x+1], 1);
1023			}
1024			}
1025			}
1026			}
1027
1028		✗	static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx)
1029			{
1030		✗	int fmt = out->format, h = sono->height;
1031		✗	int nb_planes = (fmt == AV_PIX_FMT_RGB24) ? 1 : 3;
1032		✗	int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
1033		✗	int inc = (fmt == AV_PIX_FMT_YUV420P) ? 2 : 1;
1034			ptrdiff_t ls;
1035			int i, y, yh;
1036
1037		✗	ls = FFABS(FFMIN(out->linesize[0], sono->linesize[0]));
1038		✗	for (y = 0; y < h; y++) {
1039		✗	memcpy(out->data[0] + (off + y) * out->linesize[0],
1040		✗	sono->data[0] + (idx + y) % h * sono->linesize[0], ls);
1041			}
1042
1043		✗	for (i = 1; i < nb_planes; i++) {
1044		✗	ls = FFABS(FFMIN(out->linesize[i], sono->linesize[i]));
1045		✗	for (y = 0; y < h; y += inc) {
1046		✗	yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
1047		✗	memcpy(out->data[i] + (offh + yh) * out->linesize[i],
1048		✗	sono->data[i] + (idx + y) % h * sono->linesize[i], ls);
1049			}
1050			}
1051			}
1052
1053		✗	static void update_sono_rgb(AVFrame *sono, const ColorFloat *c, int idx)
1054			{
1055		✗	int x, w = sono->width;
1056		✗	uint8_t *lp = sono->data[0] + idx * sono->linesize[0];
1057
1058		✗	for (x = 0; x < w; x++) {
1059		✗	*lp++ = lrintf(c[x].rgb.r);
1060		✗	*lp++ = lrintf(c[x].rgb.g);
1061		✗	*lp++ = lrintf(c[x].rgb.b);
1062			}
1063			}
1064
1065		✗	static void update_sono_yuv(AVFrame *sono, const ColorFloat *c, int idx)
1066			{
1067		✗	int x, fmt = sono->format, w = sono->width;
1068		✗	uint8_t *lpy = sono->data[0] + idx * sono->linesize[0];
1069		✗	uint8_t *lpu = sono->data[1] + idx * sono->linesize[1];
1070		✗	uint8_t *lpv = sono->data[2] + idx * sono->linesize[2];
1071
1072		✗	for (x = 0; x < w; x += 2) {
1073		✗	*lpy++ = lrintf(c[x].yuv.y + 16.0f);
1074		✗	*lpu++ = lrintf(c[x].yuv.u + 128.0f);
1075		✗	*lpv++ = lrintf(c[x].yuv.v + 128.0f);
1076		✗	*lpy++ = lrintf(c[x+1].yuv.y + 16.0f);
1077		✗	if (fmt == AV_PIX_FMT_YUV444P) {
1078		✗	*lpu++ = lrintf(c[x+1].yuv.u + 128.0f);
1079		✗	*lpv++ = lrintf(c[x+1].yuv.v + 128.0f);
1080			}
1081			}
1082			}
1083
1084		✗	static void process_cqt(ShowCQTContext *s)
1085			{
1086			int x, i;
1087		✗	if (!s->sono_count) {
1088		✗	for (x = 0; x < s->cqt_len; x++) {
1089		✗	s->h_buf[x] = s->bar_v_buf[x] * 0.5f * (s->cqt_result[x].re + s->cqt_result[x].im);
1090			}
1091		✗	if (s->fcount > 1) {
1092		✗	float rcp_fcount = 1.0f / s->fcount;
1093		✗	for (x = 0; x < s->width; x++) {
1094		✗	float h = 0.0f;
1095		✗	for (i = 0; i < s->fcount; i++)
1096		✗	h += s->h_buf[s->fcount * x + i];
1097		✗	s->h_buf[x] = rcp_fcount * h;
1098			}
1099			}
1100		✗	for (x = 0; x < s->width; x++) {
1101		✗	s->h_buf[x] = calculate_gamma(s->h_buf[x], s->bar_g);
1102		✗	s->rcp_h_buf[x] = 1.0f / (s->h_buf[x] + 0.0001f);
1103			}
1104			}
1105
1106		✗	for (x = 0; x < s->cqt_len; x++) {
1107		✗	s->cqt_result[x].re *= s->sono_v_buf[x];
1108		✗	s->cqt_result[x].im *= s->sono_v_buf[x];
1109			}
1110
1111		✗	if (s->fcount > 1) {
1112		✗	float rcp_fcount = 1.0f / s->fcount;
1113		✗	for (x = 0; x < s->width; x++) {
1114		✗	AVComplexFloat result = {0.0f, 0.0f};
1115		✗	for (i = 0; i < s->fcount; i++) {
1116		✗	result.re += s->cqt_result[s->fcount * x + i].re;
1117		✗	result.im += s->cqt_result[s->fcount * x + i].im;
1118			}
1119		✗	s->cqt_result[x].re = rcp_fcount * result.re;
1120		✗	s->cqt_result[x].im = rcp_fcount * result.im;
1121			}
1122			}
1123
1124		✗	if (s->format == AV_PIX_FMT_RGB24)
1125		✗	rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cscheme_v);
1126			else
1127		✗	yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cmatrix, s->cscheme_v);
1128			}
1129
1130		✗	static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
1131			{
1132		✗	AVFilterLink *outlink = ctx->outputs[0];
1133		✗	ShowCQTContext *s = ctx->priv;
1134			int64_t last_time, cur_time;
1135
1136			#define UPDATE_TIME(t) \
1137			cur_time = av_gettime_relative(); \
1138			t += cur_time - last_time; \
1139			last_time = cur_time
1140
1141		✗	last_time = av_gettime_relative();
1142
1143		✗	memcpy(s->fft_input, s->fft_data, s->fft_len * sizeof(*s->fft_data));
1144		✗	if (s->attack_data) {
1145			int k;
1146		✗	for (k = 0; k < s->remaining_fill_max; k++) {
1147		✗	s->fft_input[s->fft_len/2+k].re *= s->attack_data[k];
1148		✗	s->fft_input[s->fft_len/2+k].im *= s->attack_data[k];
1149			}
1150			}
1151
1152		✗	s->tx_fn(s->fft_ctx, s->fft_result, s->fft_input, sizeof(AVComplexFloat));
1153		✗	UPDATE_TIME(s->fft_time);
1154
1155		✗	s->cqt_calc(s->cqt_result, s->fft_result, s->coeffs, s->cqt_len, s->fft_len);
1156		✗	UPDATE_TIME(s->cqt_time);
1157
1158		✗	process_cqt(s);
1159		✗	UPDATE_TIME(s->process_cqt_time);
1160
1161		✗	if (s->sono_h) {
1162		✗	s->update_sono(s->sono_frame, s->c_buf, s->sono_idx);
1163		✗	UPDATE_TIME(s->update_sono_time);
1164			}
1165
1166		✗	if (!s->sono_count) {
1167		✗	AVFrame *out = *frameout = ff_get_video_buffer(outlink, outlink->w, outlink->h);
1168		✗	if (!out)
1169		✗	return AVERROR(ENOMEM);
1170		✗	out->sample_aspect_ratio = av_make_q(1, 1);
1171		✗	out->color_range = AVCOL_RANGE_MPEG;
1172		✗	out->colorspace = s->csp;
1173		✗	UPDATE_TIME(s->alloc_time);
1174
1175		✗	if (s->bar_h) {
1176		✗	s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h, s->bar_t);
1177		✗	UPDATE_TIME(s->bar_time);
1178			}
1179
1180		✗	if (s->axis_h) {
1181		✗	s->draw_axis(out, s->axis_frame, s->c_buf, s->bar_h);
1182		✗	UPDATE_TIME(s->axis_time);
1183			}
1184
1185		✗	if (s->sono_h) {
1186		✗	s->draw_sono(out, s->sono_frame, s->bar_h + s->axis_h, s->sono_idx);
1187		✗	UPDATE_TIME(s->sono_time);
1188			}
1189		✗	out->pts = s->next_pts;
1190		✗	out->duration = PTS_STEP;
1191		✗	s->next_pts += PTS_STEP;
1192			}
1193		✗	s->sono_count = (s->sono_count + 1) % s->count;
1194		✗	if (s->sono_h)
1195		✗	s->sono_idx = (s->sono_idx + s->sono_h - 1) % s->sono_h;
1196		✗	return 0;
1197			}
1198
1199		✗	static void init_colormatrix(ShowCQTContext *s)
1200			{
1201			double kr, kg, kb;
1202
1203			/* from vf_colorspace.c */
1204		✗	switch (s->csp) {
1205		✗	default:
1206		✗	av_log(s->ctx, AV_LOG_WARNING, "unsupported colorspace, setting it to unspecified.\n");
1207		✗	s->csp = AVCOL_SPC_UNSPECIFIED;
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(AVFilterContext *ctx)
1319			{
1320		✗	AVFilterFormats *formats = NULL;
1321		✗	AVFilterChannelLayouts *layouts = NULL;
1322		✗	AVFilterLink *inlink = ctx->inputs[0];
1323		✗	AVFilterLink *outlink = ctx->outputs[0];
1324			static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_NONE };
1325			static const enum AVPixelFormat pix_fmts[] = {
1326			AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
1327			AV_PIX_FMT_YUV444P, AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
1328			};
1329			static const AVChannelLayout channel_layouts[] = { AV_CHANNEL_LAYOUT_STEREO,
1330			AV_CHANNEL_LAYOUT_STEREO_DOWNMIX, { 0 } };
1331			int ret;
1332
1333			/* set input audio formats */
1334		✗	formats = ff_make_format_list(sample_fmts);
1335		✗	if ((ret = ff_formats_ref(formats, &inlink->outcfg.formats)) < 0)
1336		✗	return ret;
1337
1338		✗	layouts = ff_make_channel_layout_list(channel_layouts);
1339		✗	if ((ret = ff_channel_layouts_ref(layouts, &inlink->outcfg.channel_layouts)) < 0)
1340		✗	return ret;
1341
1342		✗	formats = ff_all_samplerates();
1343		✗	if ((ret = ff_formats_ref(formats, &inlink->outcfg.samplerates)) < 0)
1344		✗	return ret;
1345
1346			/* set output video format */
1347		✗	formats = ff_make_format_list(pix_fmts);
1348		✗	if ((ret = ff_formats_ref(formats, &outlink->incfg.formats)) < 0)
1349		✗	return ret;
1350
1351		✗	return 0;
1352			}
1353
1354		✗	static int config_output(AVFilterLink *outlink)
1355			{
1356		✗	AVFilterContext *ctx = outlink->src;
1357		✗	AVFilterLink *inlink = ctx->inputs[0];
1358		✗	ShowCQTContext *s = ctx->priv;
1359		✗	float scale = 1.f;
1360			int ret;
1361
1362		✗	common_uninit(s);
1363
1364		✗	outlink->w = s->width;
1365		✗	outlink->h = s->height;
1366		✗	s->format = outlink->format;
1367		✗	outlink->sample_aspect_ratio = av_make_q(1, 1);
1368		✗	outlink->frame_rate = s->rate;
1369		✗	outlink->time_base = av_mul_q(av_inv_q(s->rate), av_make_q(1, PTS_STEP));
1370		✗	av_log(ctx, AV_LOG_INFO, "video: %dx%d %s %d/%d fps, bar_h = %d, axis_h = %d, sono_h = %d.\n",
1371			s->width, s->height, av_get_pix_fmt_name(s->format), s->rate.num, s->rate.den,
1372			s->bar_h, s->axis_h, s->sono_h);
1373
1374		✗	s->cqt_len = s->width * s->fcount;
1375		✗	if (!(s->freq = create_freq_table(s->basefreq, s->endfreq, s->cqt_len)))
1376		✗	return AVERROR(ENOMEM);
1377
1378		✗	if ((ret = init_volume(s)) < 0)
1379		✗	return ret;
1380
1381		✗	s->fft_bits = FFMAX(ceil(log2(inlink->sample_rate * s->timeclamp)), 4);
1382		✗	s->fft_len = 1 << s->fft_bits;
1383		✗	av_log(ctx, AV_LOG_INFO, "fft_len = %d, cqt_len = %d.\n", s->fft_len, s->cqt_len);
1384
1385		✗	ret = av_tx_init(&s->fft_ctx, &s->tx_fn, AV_TX_FLOAT_FFT, 0, s->fft_len, &scale, 0);
1386		✗	s->fft_data = av_calloc(s->fft_len, sizeof(*s->fft_data));
1387		✗	s->fft_input = av_calloc(FFALIGN(s->fft_len + 64, 256), sizeof(*s->fft_input));
1388		✗	s->fft_result = av_calloc(FFALIGN(s->fft_len + 64, 256), sizeof(*s->fft_result));
1389		✗	s->cqt_result = av_malloc_array(s->cqt_len, sizeof(*s->cqt_result));
1390		✗	if (!s->fft_ctx || !s->fft_data || !s->fft_result || !s->cqt_result)
1391		✗	return AVERROR(ENOMEM);
1392
1393		✗	s->remaining_fill_max = s->fft_len / 2;
1394		✗	if (s->attack > 0.0) {
1395			int k;
1396
1397		✗	s->remaining_fill_max = FFMIN(s->remaining_fill_max, ceil(inlink->sample_rate * s->attack));
1398		✗	s->attack_data = av_malloc_array(s->remaining_fill_max, sizeof(*s->attack_data));
1399		✗	if (!s->attack_data)
1400		✗	return AVERROR(ENOMEM);
1401
1402		✗	for (k = 0; k < s->remaining_fill_max; k++) {
1403		✗	double y = M_PI * k / (inlink->sample_rate * s->attack);
1404		✗	s->attack_data[k] = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
1405			}
1406			}
1407
1408		✗	s->cqt_align = 1;
1409		✗	s->cqt_calc = cqt_calc;
1410		✗	s->permute_coeffs = NULL;
1411		✗	s->draw_sono = draw_sono;
1412		✗	if (s->format == AV_PIX_FMT_RGB24) {
1413		✗	s->draw_bar = draw_bar_rgb;
1414		✗	s->draw_axis = draw_axis_rgb;
1415		✗	s->update_sono = update_sono_rgb;
1416			} else {
1417		✗	s->draw_bar = draw_bar_yuv;
1418		✗	s->draw_axis = draw_axis_yuv;
1419		✗	s->update_sono = update_sono_yuv;
1420			}
1421
1422			#if ARCH_X86
1423		✗	ff_showcqt_init_x86(s);
1424			#endif
1425
1426		✗	if ((ret = init_cqt(s)) < 0)
1427		✗	return ret;
1428
1429		✗	if (s->axis_h) {
1430		✗	if (!s->axis) {
1431		✗	if ((ret = init_axis_empty(s)) < 0)
1432		✗	return ret;
1433		✗	} else if (s->axisfile) {
1434		✗	if (init_axis_from_file(s) < 0) {
1435		✗	av_log(ctx, AV_LOG_WARNING, "loading axis image failed, fallback to font rendering.\n");
1436		✗	if (init_axis_from_font(s) < 0) {
1437		✗	av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1438		✗	if ((ret = init_axis_empty(s)) < 0)
1439		✗	return ret;
1440			}
1441			}
1442			} else {
1443		✗	if (init_axis_from_font(s) < 0) {
1444		✗	av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
1445		✗	if ((ret = init_axis_empty(s)) < 0)
1446		✗	return ret;
1447			}
1448			}
1449			}
1450
1451		✗	if (s->sono_h) {
1452		✗	s->sono_frame = alloc_frame_empty((outlink->format == AV_PIX_FMT_YUV420P) ?
1453			AV_PIX_FMT_YUV422P : outlink->format, s->width, s->sono_h);
1454		✗	if (!s->sono_frame)
1455		✗	return AVERROR(ENOMEM);
1456			}
1457
1458		✗	s->h_buf = av_malloc_array(s->cqt_len, sizeof (*s->h_buf));
1459		✗	s->rcp_h_buf = av_malloc_array(s->width, sizeof(*s->rcp_h_buf));
1460		✗	s->c_buf = av_malloc_array(s->width, sizeof(*s->c_buf));
1461		✗	if (!s->h_buf || !s->rcp_h_buf || !s->c_buf)
1462		✗	return AVERROR(ENOMEM);
1463
1464		✗	s->sono_count = 0;
1465		✗	s->next_pts = 0;
1466		✗	s->sono_idx = 0;
1467		✗	s->remaining_fill = s->remaining_fill_max;
1468		✗	s->remaining_frac = 0;
1469		✗	s->step_frac = av_div_q(av_make_q(inlink->sample_rate, s->count) , s->rate);
1470		✗	s->step = (int)(s->step_frac.num / s->step_frac.den);
1471		✗	s->step_frac.num %= s->step_frac.den;
1472		✗	if (s->step_frac.num) {
1473		✗	av_log(ctx, AV_LOG_INFO, "audio: %d Hz, step = %d + %d/%d.\n",
1474			inlink->sample_rate, s->step, s->step_frac.num, s->step_frac.den);
1475		✗	av_log(ctx, AV_LOG_WARNING, "fractional step.\n");
1476			} else {
1477		✗	av_log(ctx, AV_LOG_INFO, "audio: %d Hz, step = %d.\n",
1478			inlink->sample_rate, s->step);
1479			}
1480
1481		✗	return 0;
1482			}
1483
1484
1485		✗	static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
1486			{
1487		✗	AVFilterContext *ctx = inlink->dst;
1488		✗	AVFilterLink *outlink = ctx->outputs[0];
1489		✗	ShowCQTContext *s = ctx->priv;
1490			int remaining, step, ret, x, i, j, m;
1491			float *audio_data;
1492		✗	AVFrame *out = NULL;
1493
1494		✗	if (!insamples) {
1495		✗	while (s->remaining_fill < s->remaining_fill_max) {
1496		✗	memset(&s->fft_data[s->fft_len/2 + s->remaining_fill_max - s->remaining_fill], 0, sizeof(*s->fft_data) * s->remaining_fill);
1497		✗	ret = plot_cqt(ctx, &out);
1498		✗	if (ret < 0)
1499		✗	return ret;
1500
1501		✗	step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1502		✗	s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1503		✗	for (x = 0; x < (s->fft_len/2 + s->remaining_fill_max - step); x++)
1504		✗	s->fft_data[x] = s->fft_data[x+step];
1505		✗	s->remaining_fill += step;
1506
1507		✗	if (out)
1508		✗	return ff_filter_frame(outlink, out);
1509			}
1510		✗	return AVERROR_EOF;
1511			}
1512
1513		✗	remaining = insamples->nb_samples;
1514		✗	audio_data = (float*) insamples->data[0];
1515
1516		✗	while (remaining) {
1517		✗	i = insamples->nb_samples - remaining;
1518		✗	j = s->fft_len/2 + s->remaining_fill_max - s->remaining_fill;
1519		✗	if (remaining >= s->remaining_fill) {
1520		✗	for (m = 0; m < s->remaining_fill; m++) {
1521		✗	s->fft_data[j+m].re = audio_data[2*(i+m)];
1522		✗	s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1523			}
1524		✗	ret = plot_cqt(ctx, &out);
1525		✗	if (ret < 0) {
1526		✗	av_frame_free(&insamples);
1527		✗	return ret;
1528			}
1529		✗	remaining -= s->remaining_fill;
1530		✗	if (out) {
1531		✗	int64_t pts = av_rescale_q(insamples->pts, inlink->time_base, av_make_q(1, inlink->sample_rate));
1532		✗	pts += insamples->nb_samples - remaining - s->remaining_fill_max;
1533		✗	pts = av_rescale_q(pts, av_make_q(1, inlink->sample_rate), outlink->time_base);
1534		✗	if (FFABS(pts - out->pts) > PTS_TOLERANCE) {
1535		✗	av_log(ctx, AV_LOG_DEBUG, "changing pts from %"PRId64" (%.3f) to %"PRId64" (%.3f).\n",
1536		✗	out->pts, out->pts * av_q2d(outlink->time_base),
1537		✗	pts, pts * av_q2d(outlink->time_base));
1538		✗	out->pts = pts;
1539		✗	s->next_pts = pts + PTS_STEP;
1540			}
1541		✗	ret = ff_filter_frame(outlink, out);
1542		✗	if (ret < 0) {
1543		✗	av_frame_free(&insamples);
1544		✗	return ret;
1545			}
1546		✗	out = NULL;
1547			}
1548		✗	step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
1549		✗	s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
1550		✗	for (m = 0; m < s->fft_len/2 + s->remaining_fill_max - step; m++)
1551		✗	s->fft_data[m] = s->fft_data[m+step];
1552		✗	s->remaining_fill = step;
1553			} else {
1554		✗	for (m = 0; m < remaining; m++) {
1555		✗	s->fft_data[j+m].re = audio_data[2*(i+m)];
1556		✗	s->fft_data[j+m].im = audio_data[2*(i+m)+1];
1557			}
1558		✗	s->remaining_fill -= remaining;
1559		✗	remaining = 0;
1560			}
1561			}
1562		✗	av_frame_free(&insamples);
1563		✗	return 0;
1564			}
1565
1566		✗	static int request_frame(AVFilterLink *outlink)
1567			{
1568		✗	AVFilterLink *inlink = outlink->src->inputs[0];
1569			int ret;
1570
1571		✗	ret = ff_request_frame(inlink);
1572		✗	if (ret == AVERROR_EOF)
1573		✗	ret = filter_frame(inlink, NULL);
1574		✗	return ret;
1575			}
1576
1577			static const AVFilterPad showcqt_inputs[] = {
1578			{
1579			.name = "default",
1580			.type = AVMEDIA_TYPE_AUDIO,
1581			.filter_frame = filter_frame,
1582			},
1583			};
1584
1585			static const AVFilterPad showcqt_outputs[] = {
1586			{
1587			.name = "default",
1588			.type = AVMEDIA_TYPE_VIDEO,
1589			.config_props = config_output,
1590			.request_frame = request_frame,
1591			},
1592			};
1593
1594			const AVFilter ff_avf_showcqt = {
1595			.name = "showcqt",
1596			.description = NULL_IF_CONFIG_SMALL("Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output."),
1597			.init = init,
1598			.uninit = uninit,
1599			.priv_size = sizeof(ShowCQTContext),
1600			FILTER_INPUTS(showcqt_inputs),
1601			FILTER_OUTPUTS(showcqt_outputs),
1602			FILTER_QUERY_FUNC(query_formats),
1603			.priv_class = &showcqt_class,
1604			};
1605