libavfilter/silenceremove_template.c

Line	Branch	Exec	Source
1			/*
2			* This file is part of FFmpeg.
3			*
4			* FFmpeg is free software; you can redistribute it and/or
5			* modify it under the terms of the GNU Lesser General Public
6			* License as published by the Free Software Foundation; either
7			* version 2.1 of the License, or (at your option) any later version.
8			*
9			* FFmpeg is distributed in the hope that it will be useful,
10			* but WITHOUT ANY WARRANTY; without even the implied warranty of
11			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12			* Lesser General Public License for more details.
13			*
14			* You should have received a copy of the GNU Lesser General Public
15			* License along with FFmpeg; if not, write to the Free Software
16			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17			*/
18
19			#undef ftype
20			#undef FABS
21			#undef FMAX
22			#undef SAMPLE_FORMAT
23			#undef SQRT
24			#undef ZERO
25			#undef ONE
26			#undef TMIN
27			#if DEPTH == 32
28			#define SAMPLE_FORMAT flt
29			#define SQRT sqrtf
30			#define FMAX fmaxf
31			#define FABS fabsf
32			#define ftype float
33			#define ZERO 0.f
34			#define ONE 1.f
35			#define TMIN -FLT_MAX
36			#else
37			#define SAMPLE_FORMAT dbl
38			#define SQRT sqrt
39			#define FMAX fmax
40			#define FABS fabs
41			#define ftype double
42			#define ZERO 0.0
43			#define ONE 1.0
44			#define TMIN -DBL_MAX
45			#endif
46
47			#define fn3(a,b) a##_##b
48			#define fn2(a,b) fn3(a,b)
49			#define fn(a) fn2(a, SAMPLE_FORMAT)
50
51		✗	static void fn(flush)(ftype dst, const ftype src, int src_pos,
52			int nb_channels, int count, int src_nb_samples,
53			int *out_nb_samples)
54			{
55		✗	int oidx, out_count = count;
56		✗	int sidx = src_pos;
57
58	0/4 flush_dbl: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 4 not taken. flush_flt: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 4 not taken.	✗	if (count <= 0)
59		✗	return;
60
61		✗	oidx = *out_nb_samples + out_count - 1;
62		✗	*out_nb_samples += out_count;
63	0/4 flush_dbl: ✗ Branch 11 → 5 not taken. ✗ Branch 11 → 12 not taken. flush_flt: ✗ Branch 11 → 5 not taken. ✗ Branch 11 → 12 not taken.	✗	while (out_count-- > 0) {
64		✗	const int spos = sidx * nb_channels;
65		✗	const int opos = oidx * nb_channels;
66
67	0/4 flush_dbl: ✗ Branch 7 → 6 not taken. ✗ Branch 7 → 8 not taken. flush_flt: ✗ Branch 7 → 6 not taken. ✗ Branch 7 → 8 not taken.	✗	for (int ch = 0; ch < nb_channels; ch++)
68		✗	dst[opos + ch] = src[spos + ch];
69
70		✗	oidx--;
71		✗	sidx--;
72	0/4 flush_dbl: ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 10 not taken. flush_flt: ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 10 not taken.	✗	if (sidx < 0)
73		✗	sidx = src_nb_samples - 1;
74			}
75			}
76
77		441000	static void fn(queue_sample)(AVFilterContext *ctx,
78			const ftype *src,
79			ftype *queue,
80			int *queue_pos,
81			int *queue_size,
82			int *window_pos,
83			int *window_size,
84			const int nb_channels,
85			const int nb_samples,
86			const int window_nb_samples)
87			{
88		441000	const int pos = queue_pos nb_channels;
89
90	2/4 queue_sample_dbl: ✓ Branch 4 → 3 taken 441000 times. ✓ Branch 4 → 5 taken 441000 times. queue_sample_flt: ✗ Branch 4 → 3 not taken. ✗ Branch 4 → 5 not taken.	882000	for (int ch = 0; ch < nb_channels; ch++)
91		441000	queue[pos + ch] = src[ch];
92
93		441000	(*queue_pos)++;
94	1/4 queue_sample_dbl: ✓ Branch 5 → 6 taken 441000 times. ✗ Branch 5 → 7 not taken. queue_sample_flt: ✗ Branch 5 → 6 not taken. ✗ Branch 5 → 7 not taken.	441000	if (*queue_pos >= nb_samples)
95		441000	*queue_pos = 0;
96
97	2/4 queue_sample_dbl: ✓ Branch 7 → 8 taken 1 time. ✓ Branch 7 → 9 taken 440999 times. queue_sample_flt: ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 9 not taken.	441000	if (*queue_size < nb_samples)
98		1	(*queue_size)++;
99
100	2/4 queue_sample_dbl: ✓ Branch 9 → 10 taken 1 time. ✓ Branch 9 → 11 taken 440999 times. queue_sample_flt: ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken.	441000	if (*window_size < window_nb_samples)
101		1	(*window_size)++;
102
103		441000	(*window_pos)++;
104	1/4 queue_sample_dbl: ✓ Branch 11 → 12 taken 441000 times. ✗ Branch 11 → 13 not taken. queue_sample_flt: ✗ Branch 11 → 12 not taken. ✗ Branch 11 → 13 not taken.	441000	if (*window_pos >= window_nb_samples)
105		441000	*window_pos = 0;
106		441000	}
107
108		441000	static ftype fn(compute_avg)(ftype *cache, ftype x, ftype px,
109			int window_size, int unused, int unused2)
110			{
111			ftype r;
112
113		441000	cache[0] += FABS(x);
114		441000	cache[0] -= FABS(px);
115		441000	cache[0] = r = FMAX(cache[0], ZERO);
116
117		441000	return r / window_size;
118			}
119
120			#define PEAKS(empty_value,op,sample, psample)\
121			if (!empty && psample == ss[front]) { \
122			ss[front] = empty_value; \
123			if (back != front) { \
124			front--; \
125			if (front < 0) \
126			front = n - 1; \
127			} \
128			empty = front == back; \
129			} \
130			\
131			if (!empty && sample op ss[front]) { \
132			while (1) { \
133			ss[front] = empty_value; \
134			if (back == front) { \
135			empty = 1; \
136			break; \
137			} \
138			front--; \
139			if (front < 0) \
140			front = n - 1; \
141			} \
142			} \
143			\
144			while (!empty && sample op ss[back]) { \
145			ss[back] = empty_value; \
146			if (back == front) { \
147			empty = 1; \
148			break; \
149			} \
150			back++; \
151			if (back >= n) \
152			back = 0; \
153			} \
154			\
155			if (!empty) { \
156			back--; \
157			if (back < 0) \
158			back = n - 1; \
159			}
160
161		✗	static ftype fn(compute_median)(ftype *ss, ftype x, ftype px,
162			int n, int ffront, int bback)
163			{
164		✗	ftype r, ax = FABS(x);
165		✗	int front = *ffront;
166		✗	int back = *bback;
167	0/8 compute_median_dbl: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 5 not taken. ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken. compute_median_flt: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 5 not taken. ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken.	✗	int empty = front == back && ss[front] == -ONE;
168			int idx;
169
170	0/56 compute_median_dbl: ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 12 not taken. ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 12 not taken. ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 11 not taken. ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken. ✗ Branch 12 → 13 not taken. ✗ Branch 12 → 20 not taken. ✗ Branch 13 → 14 not taken. ✗ Branch 13 → 20 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken. ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 25 not taken. ✗ Branch 26 → 27 not taken. ✗ Branch 26 → 28 not taken. ✗ Branch 27 → 21 not taken. ✗ Branch 27 → 28 not taken. ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 31 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 31 not taken. compute_median_flt: ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 12 not taken. ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 12 not taken. ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 11 not taken. ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken. ✗ Branch 12 → 13 not taken. ✗ Branch 12 → 20 not taken. ✗ Branch 13 → 14 not taken. ✗ Branch 13 → 20 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken. ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 25 not taken. ✗ Branch 26 → 27 not taken. ✗ Branch 26 → 28 not taken. ✗ Branch 27 → 21 not taken. ✗ Branch 27 → 28 not taken. ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 31 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 31 not taken.	✗	PEAKS(-ONE, >, ax, FABS(px))
171
172		✗	ss[back] = ax;
173	0/4 compute_median_dbl: ✗ Branch 31 → 32 not taken. ✗ Branch 31 → 33 not taken. compute_median_flt: ✗ Branch 31 → 32 not taken. ✗ Branch 31 → 33 not taken.	✗	idx = (back <= front) ? back + (front - back + 1) / 2 : back + (n + front - back + 1) / 2;
174	0/4 compute_median_dbl: ✗ Branch 34 → 35 not taken. ✗ Branch 34 → 36 not taken. compute_median_flt: ✗ Branch 34 → 35 not taken. ✗ Branch 34 → 36 not taken.	✗	if (idx >= n)
175		✗	idx -= n;
176			av_assert2(idx >= 0 && idx < n);
177		✗	r = ss[idx];
178
179		✗	*ffront = front;
180		✗	*bback = back;
181
182		✗	return r;
183			}
184
185		✗	static ftype fn(compute_peak)(ftype *ss, ftype x, ftype px,
186			int n, int ffront, int bback)
187			{
188		✗	ftype r, ax = FABS(x);
189		✗	int front = *ffront;
190		✗	int back = *bback;
191	0/8 compute_peak_dbl: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 5 not taken. ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken. compute_peak_flt: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 5 not taken. ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken.	✗	int empty = front == back && ss[front] == ZERO;
192
193	0/56 compute_peak_dbl: ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 12 not taken. ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 12 not taken. ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 11 not taken. ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken. ✗ Branch 12 → 13 not taken. ✗ Branch 12 → 20 not taken. ✗ Branch 13 → 14 not taken. ✗ Branch 13 → 20 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken. ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 25 not taken. ✗ Branch 26 → 27 not taken. ✗ Branch 26 → 28 not taken. ✗ Branch 27 → 21 not taken. ✗ Branch 27 → 28 not taken. ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 31 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 31 not taken. compute_peak_flt: ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 12 not taken. ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 12 not taken. ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 11 not taken. ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken. ✗ Branch 12 → 13 not taken. ✗ Branch 12 → 20 not taken. ✗ Branch 13 → 14 not taken. ✗ Branch 13 → 20 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken. ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 25 not taken. ✗ Branch 26 → 27 not taken. ✗ Branch 26 → 28 not taken. ✗ Branch 27 → 21 not taken. ✗ Branch 27 → 28 not taken. ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 31 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 31 not taken.	✗	PEAKS(ZERO, >=, ax, FABS(px))
194
195		✗	ss[back] = ax;
196		✗	r = ss[front];
197
198		✗	*ffront = front;
199		✗	*bback = back;
200
201		✗	return r;
202			}
203
204		✗	static ftype fn(compute_ptp)(ftype *ss, ftype x, ftype px,
205			int n, int ffront, int bback)
206			{
207		✗	int front = *ffront;
208		✗	int back = *bback;
209	0/8 compute_ptp_dbl: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 5 not taken. ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken. compute_ptp_flt: ✗ Branch 2 → 3 not taken. ✗ Branch 2 → 5 not taken. ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken.	✗	int empty = front == back && ss[front] == TMIN;
210			ftype r, max, min;
211
212	0/56 compute_ptp_dbl: ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 12 not taken. ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 12 not taken. ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 11 not taken. ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken. ✗ Branch 12 → 13 not taken. ✗ Branch 12 → 20 not taken. ✗ Branch 13 → 14 not taken. ✗ Branch 13 → 20 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken. ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 25 not taken. ✗ Branch 26 → 27 not taken. ✗ Branch 26 → 28 not taken. ✗ Branch 27 → 21 not taken. ✗ Branch 27 → 28 not taken. ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 31 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 31 not taken. compute_ptp_flt: ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 12 not taken. ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 12 not taken. ✗ Branch 8 → 9 not taken. ✗ Branch 8 → 11 not taken. ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken. ✗ Branch 12 → 13 not taken. ✗ Branch 12 → 20 not taken. ✗ Branch 13 → 14 not taken. ✗ Branch 13 → 20 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken. ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 25 not taken. ✗ Branch 26 → 27 not taken. ✗ Branch 26 → 28 not taken. ✗ Branch 27 → 21 not taken. ✗ Branch 27 → 28 not taken. ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 31 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 31 not taken.	✗	PEAKS(TMIN, >=, x, px)
213
214		✗	ss[back] = x;
215		✗	max = ss[front];
216		✗	min = x;
217		✗	r = FABS(min) + FABS(max - min);
218
219		✗	*ffront = front;
220		✗	*bback = back;
221
222		✗	return r;
223			}
224
225		✗	static ftype fn(compute_rms)(ftype *cache, ftype x, ftype px,
226			int window_size, int unused, int unused2)
227			{
228			ftype r;
229
230		✗	cache[0] += x * x;
231		✗	cache[0] -= px * px;
232		✗	cache[0] = r = FMAX(cache[0], ZERO);
233
234		✗	return SQRT(r / window_size);
235			}
236
237		✗	static ftype fn(compute_dev)(ftype *ss, ftype x, ftype px,
238			int n, int unused, int unused2)
239			{
240			ftype r;
241
242		✗	ss[0] += x;
243		✗	ss[0] -= px;
244
245		✗	ss[1] += x * x;
246		✗	ss[1] -= px * px;
247		✗	ss[1] = FMAX(ss[1], ZERO);
248
249		✗	r = FMAX(ss[1] - ss[0] * ss[0] / n, ZERO) / n;
250
251		✗	return SQRT(r);
252			}
253
254		✗	static void fn(filter_start)(AVFilterContext *ctx,
255			const ftype src, ftype dst,
256			int *nb_out_samples,
257			const int nb_channels)
258			{
259		✗	SilenceRemoveContext *s = ctx->priv;
260		✗	const int start_periods = s->start_periods;
261		✗	int out_nb_samples = *nb_out_samples;
262		✗	const int start_window_nb_samples = s->start_window->nb_samples;
263		✗	const int start_nb_samples = s->start_queuef->nb_samples;
264		✗	const int start_wpos = s->start_window_pos * nb_channels;
265		✗	const int start_pos = s->start_queue_pos * nb_channels;
266		✗	ftype startw = (ftype )s->start_window->data[0];
267		✗	ftype start = (ftype )s->start_queuef->data[0];
268		✗	const ftype start_threshold = s->start_threshold;
269		✗	const int start_mode = s->start_mode;
270		✗	int start_thres = (start_mode == T_ANY) ? 0 : 1;
271		✗	const int start_duration = s->start_duration;
272		✗	ftype start_cache = (ftype )s->start_cache;
273		✗	const int start_silence = s->start_silence;
274		✗	int window_size = start_window_nb_samples;
275		✗	const int cache_size = s->cache_size;
276		✗	int *front = s->start_front;
277		✗	int *back = s->start_back;
278
279		✗	fn(queue_sample)(ctx, src, start,
280			&s->start_queue_pos,
281			&s->start_queue_size,
282			&s->start_window_pos,
283			&s->start_window_size,
284			nb_channels,
285			start_nb_samples,
286			start_window_nb_samples);
287
288	0/4 filter_start_dbl: ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken. filter_start_flt: ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 5 not taken.	✗	if (s->start_found_periods < 0)
289		✗	goto skip;
290
291	0/8 filter_start_dbl: ✗ Branch 5 → 6 not taken. ✗ Branch 5 → 9 not taken. ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 9 not taken. filter_start_flt: ✗ Branch 5 → 6 not taken. ✗ Branch 5 → 9 not taken. ✗ Branch 6 → 7 not taken. ✗ Branch 6 → 9 not taken.	✗	if (s->detection != D_PEAK && s->detection != D_MEDIAN &&
292	0/4 filter_start_dbl: ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 9 not taken. filter_start_flt: ✗ Branch 7 → 8 not taken. ✗ Branch 7 → 9 not taken.	✗	s->detection != D_PTP)
293		✗	window_size = s->start_window_size;
294
295	0/4 filter_start_dbl: ✗ Branch 15 → 10 not taken. ✗ Branch 15 → 16 not taken. filter_start_flt: ✗ Branch 15 → 10 not taken. ✗ Branch 15 → 16 not taken.	✗	for (int ch = 0; ch < nb_channels; ch++) {
296		✗	ftype start_sample = start[start_pos + ch];
297		✗	ftype start_ow = startw[start_wpos + ch];
298			ftype tstart;
299
300		✗	tstart = fn(s->compute)(start_cache + ch * cache_size,
301			start_sample,
302			start_ow,
303			window_size,
304		✗	front + ch,
305		✗	back + ch);
306
307		✗	startw[start_wpos + ch] = start_sample;
308
309	0/4 filter_start_dbl: ✗ Branch 11 → 12 not taken. ✗ Branch 11 → 13 not taken. filter_start_flt: ✗ Branch 11 → 12 not taken. ✗ Branch 11 → 13 not taken.	✗	if (start_mode == T_ANY) {
310		✗	start_thres \|= tstart > start_threshold;
311			} else {
312		✗	start_thres &= tstart > start_threshold;
313			}
314			}
315
316	0/4 filter_start_dbl: ✗ Branch 16 → 17 not taken. ✗ Branch 16 → 21 not taken. filter_start_flt: ✗ Branch 16 → 17 not taken. ✗ Branch 16 → 21 not taken.	✗	if (s->start_found_periods >= 0) {
317	0/4 filter_start_dbl: ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 20 not taken. filter_start_flt: ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 20 not taken.	✗	if (start_silence > 0) {
318		✗	s->start_silence_count++;
319	0/4 filter_start_dbl: ✗ Branch 18 → 19 not taken. ✗ Branch 18 → 20 not taken. filter_start_flt: ✗ Branch 18 → 19 not taken. ✗ Branch 18 → 20 not taken.	✗	if (s->start_silence_count > start_silence)
320		✗	s->start_silence_count = start_silence;
321			}
322
323		✗	s->start_sample_count += start_thres;
324			}
325
326	0/4 filter_start_dbl: ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken. filter_start_flt: ✗ Branch 21 → 22 not taken. ✗ Branch 21 → 23 not taken.	✗	if (s->start_sample_count > start_duration) {
327		✗	s->start_found_periods++;
328	0/4 filter_start_dbl: ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 27 not taken. filter_start_flt: ✗ Branch 23 → 24 not taken. ✗ Branch 23 → 27 not taken.	✗	if (s->start_found_periods >= start_periods) {
329	0/4 filter_start_dbl: ✗ Branch 24 → 25 not taken. ✗ Branch 24 → 26 not taken. filter_start_flt: ✗ Branch 24 → 25 not taken. ✗ Branch 24 → 26 not taken.	✗	if (!ctx->is_disabled)
330		✗	fn(flush)(dst, start, s->start_queue_pos, nb_channels,
331			s->start_silence_count, start_nb_samples,
332			&out_nb_samples);
333		✗	s->start_silence_count = 0;
334		✗	s->start_found_periods = -1;
335			}
336
337		✗	s->start_sample_count = 0;
338			}
339
340		✗	skip:
341	0/8 filter_start_dbl: ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 30 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 34 not taken. filter_start_flt: ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 30 not taken. ✗ Branch 29 → 30 not taken. ✗ Branch 29 → 34 not taken.	✗	if (s->start_found_periods < 0 \|\| ctx->is_disabled) {
342		✗	const int dst_pos = out_nb_samples * nb_channels;
343	0/4 filter_start_dbl: ✗ Branch 32 → 31 not taken. ✗ Branch 32 → 33 not taken. filter_start_flt: ✗ Branch 32 → 31 not taken. ✗ Branch 32 → 33 not taken.	✗	for (int ch = 0; ch < nb_channels; ch++)
344		✗	dst[dst_pos + ch] = start[start_pos + ch];
345		✗	out_nb_samples++;
346			}
347
348		✗	*nb_out_samples = out_nb_samples;
349		✗	}
350
351		441000	static void fn(filter_stop)(AVFilterContext *ctx,
352			const ftype src, ftype dst,
353			int *nb_out_samples,
354			const int nb_channels)
355			{
356		441000	SilenceRemoveContext *s = ctx->priv;
357		441000	const int stop_periods = s->stop_periods;
358		441000	int out_nb_samples = *nb_out_samples;
359		441000	const int stop_window_nb_samples = s->stop_window->nb_samples;
360		441000	const int stop_nb_samples = s->stop_queuef->nb_samples;
361		441000	const int stop_wpos = s->stop_window_pos * nb_channels;
362		441000	const int stop_pos = s->stop_queue_pos * nb_channels;
363		441000	ftype stopw = (ftype )s->stop_window->data[0];
364		441000	const ftype stop_threshold = s->stop_threshold;
365		441000	ftype stop = (ftype )s->stop_queuef->data[0];
366		441000	const int stop_mode = s->stop_mode;
367		441000	int stop_thres = (stop_mode == T_ANY) ? 0 : 1;
368		441000	const int stop_duration = s->stop_duration;
369		441000	ftype stop_cache = (ftype )s->stop_cache;
370		441000	const int stop_silence = s->stop_silence;
371		441000	int window_size = stop_window_nb_samples;
372		441000	const int cache_size = s->cache_size;
373		441000	const int restart = s->restart;
374		441000	int *front = s->stop_front;
375		441000	int *back = s->stop_back;
376
377		441000	fn(queue_sample)(ctx, src, stop,
378			&s->stop_queue_pos,
379			&s->stop_queue_size,
380			&s->stop_window_pos,
381			&s->stop_window_size,
382			nb_channels,
383			stop_nb_samples,
384			stop_window_nb_samples);
385
386	2/8 filter_stop_dbl: ✓ Branch 3 → 4 taken 441000 times. ✗ Branch 3 → 7 not taken. ✓ Branch 4 → 5 taken 441000 times. ✗ Branch 4 → 7 not taken. filter_stop_flt: ✗ Branch 3 → 4 not taken. ✗ Branch 3 → 7 not taken. ✗ Branch 4 → 5 not taken. ✗ Branch 4 → 7 not taken.	441000	if (s->detection != D_PEAK && s->detection != D_MEDIAN &&
387	1/4 filter_stop_dbl: ✓ Branch 5 → 6 taken 441000 times. ✗ Branch 5 → 7 not taken. filter_stop_flt: ✗ Branch 5 → 6 not taken. ✗ Branch 5 → 7 not taken.	441000	s->detection != D_PTP)
388		441000	window_size = s->stop_window_size;
389
390	2/4 filter_stop_dbl: ✓ Branch 13 → 8 taken 441000 times. ✓ Branch 13 → 14 taken 441000 times. filter_stop_flt: ✗ Branch 13 → 8 not taken. ✗ Branch 13 → 14 not taken.	882000	for (int ch = 0; ch < nb_channels; ch++) {
391		441000	ftype stop_sample = stop[stop_pos + ch];
392		441000	ftype stop_ow = stopw[stop_wpos + ch];
393			ftype tstop;
394
395		441000	tstop = fn(s->compute)(stop_cache + ch * cache_size,
396			stop_sample,
397			stop_ow,
398			window_size,
399		441000	front + ch,
400		441000	back + ch);
401
402		441000	stopw[stop_wpos + ch] = stop_sample;
403
404	1/4 filter_stop_dbl: ✗ Branch 9 → 10 not taken. ✓ Branch 9 → 11 taken 441000 times. filter_stop_flt: ✗ Branch 9 → 10 not taken. ✗ Branch 9 → 11 not taken.	441000	if (stop_mode == T_ANY) {
405		✗	stop_thres \|= tstop <= stop_threshold;
406			} else {
407		441000	stop_thres &= tstop <= stop_threshold;
408			}
409			}
410
411		441000	s->found_nonsilence = FFMAX(s->found_nonsilence, !stop_thres);
412	3/8 filter_stop_dbl: ✓ Branch 14 → 15 taken 441000 times. ✗ Branch 14 → 17 not taken. ✓ Branch 15 → 16 taken 176403 times. ✓ Branch 15 → 17 taken 264597 times. filter_stop_flt: ✗ Branch 14 → 15 not taken. ✗ Branch 14 → 17 not taken. ✗ Branch 15 → 16 not taken. ✗ Branch 15 → 17 not taken.	441000	if (restart && !stop_thres)
413		176403	s->stop_found_periods = 0;
414
415	3/8 filter_stop_dbl: ✓ Branch 17 → 18 taken 220494 times. ✓ Branch 17 → 19 taken 220506 times. ✗ Branch 18 → 19 not taken. ✓ Branch 18 → 22 taken 220494 times. filter_stop_flt: ✗ Branch 17 → 18 not taken. ✗ Branch 17 → 19 not taken. ✗ Branch 18 → 19 not taken. ✗ Branch 18 → 22 not taken.	441000	if (s->stop_found_periods >= 0 \|\| ctx->is_disabled) {
416	2/4 filter_stop_dbl: ✓ Branch 19 → 20 taken 176406 times. ✓ Branch 19 → 21 taken 44100 times. filter_stop_flt: ✗ Branch 19 → 20 not taken. ✗ Branch 19 → 21 not taken.	220506	if (s->found_nonsilence) {
417		176406	s->stop_sample_count += stop_thres;
418		176406	s->stop_sample_count *= stop_thres;
419			}
420	1/4 filter_stop_dbl: ✗ Branch 22 → 23 not taken. ✓ Branch 22 → 27 taken 220494 times. filter_stop_flt: ✗ Branch 22 → 23 not taken. ✗ Branch 22 → 27 not taken.	220494	} else if (s->stop_silence_count > 0) {
421		✗	const int dst_pos = out_nb_samples * nb_channels;
422	0/4 filter_stop_dbl: ✗ Branch 25 → 24 not taken. ✗ Branch 25 → 26 not taken. filter_stop_flt: ✗ Branch 25 → 24 not taken. ✗ Branch 25 → 26 not taken.	✗	for (int ch = 0; ch < nb_channels; ch++)
423		✗	dst[dst_pos + ch] = stop[stop_pos + ch];
424		✗	s->stop_silence_count--;
425		✗	out_nb_samples++;
426			}
427
428	2/4 filter_stop_dbl: ✓ Branch 27 → 28 taken 3 times. ✓ Branch 27 → 31 taken 440997 times. filter_stop_flt: ✗ Branch 27 → 28 not taken. ✗ Branch 27 → 31 not taken.	441000	if (s->stop_sample_count > stop_duration) {
429		3	s->stop_found_periods++;
430	1/4 filter_stop_dbl: ✓ Branch 28 → 29 taken 3 times. ✗ Branch 28 → 30 not taken. filter_stop_flt: ✗ Branch 28 → 29 not taken. ✗ Branch 28 → 30 not taken.	3	if (s->stop_found_periods >= stop_periods) {
431		3	s->stop_found_periods = -1;
432		3	s->stop_silence_count = stop_silence;
433			}
434
435		3	s->stop_sample_count = 0;
436			}
437
438	3/8 filter_stop_dbl: ✓ Branch 31 → 32 taken 220497 times. ✓ Branch 31 → 33 taken 220503 times. ✗ Branch 32 → 33 not taken. ✓ Branch 32 → 37 taken 220497 times. filter_stop_flt: ✗ Branch 31 → 32 not taken. ✗ Branch 31 → 33 not taken. ✗ Branch 32 → 33 not taken. ✗ Branch 32 → 37 not taken.	441000	if (s->stop_found_periods >= 0 \|\| ctx->is_disabled) {
439		220503	const int dst_pos = out_nb_samples * nb_channels;
440	2/4 filter_stop_dbl: ✓ Branch 35 → 34 taken 220503 times. ✓ Branch 35 → 36 taken 220503 times. filter_stop_flt: ✗ Branch 35 → 34 not taken. ✗ Branch 35 → 36 not taken.	441006	for (int ch = 0; ch < nb_channels; ch++)
441		220503	dst[dst_pos + ch] = stop[stop_pos + ch];
442		220503	out_nb_samples++;
443			}
444
445		441000	*nb_out_samples = out_nb_samples;
446		441000	}
447

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