FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswresample/swresample.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 468 616 76.0%
Functions: 22 23 95.7%
Branches: 348 529 65.8%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at)
3 *
4 * This file is part of libswresample
5 *
6 * libswresample 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 * libswresample 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 libswresample; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/mem.h"
22 #include "libavutil/opt.h"
23 #include "swresample_internal.h"
24 #include "audioconvert.h"
25 #include "libavutil/avassert.h"
26 #include "libavutil/channel_layout.h"
27 #include "libavutil/internal.h"
28
29 #include <float.h>
30
31 #define ALIGN 32
32
33 16 int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map){
34
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 16 if(!s || s->in_convert) // s needs to be allocated but not initialized
35 ✗ return AVERROR(EINVAL);
36 16 s->channel_map = channel_map;
37 16 return 0;
38 }
39
40 1488 int swr_alloc_set_opts2(struct SwrContext **ps,
41 const AVChannelLayout *out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate,
42 const AVChannelLayout *in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate,
43 int log_offset, void *log_ctx) {
44 1488 struct SwrContext *s = *ps;
45 int ret;
46
47
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 1488 if (!s) s = swr_alloc();
48
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 1488 if (!s) return AVERROR(ENOMEM);
49
50 1488 *ps = s;
51
52 1488 s->log_level_offset = log_offset;
53 1488 s->log_ctx = log_ctx;
54
55
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 1488 if ((ret = av_opt_set_chlayout(s, "ochl", out_ch_layout, 0)) < 0)
56 ✗ goto fail;
57
58
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 1488 if ((ret = av_opt_set_int(s, "osf", out_sample_fmt, 0)) < 0)
59 ✗ goto fail;
60
61
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 1488 if ((ret = av_opt_set_int(s, "osr", out_sample_rate, 0)) < 0)
62 ✗ goto fail;
63
64
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 1488 if ((ret = av_opt_set_chlayout(s, "ichl", in_ch_layout, 0)) < 0)
65 ✗ goto fail;
66
67
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 1488 if ((ret = av_opt_set_int(s, "isf", in_sample_fmt, 0)) < 0)
68 ✗ goto fail;
69
70
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 1488 if ((ret = av_opt_set_int(s, "isr", in_sample_rate, 0)) < 0)
71 ✗ goto fail;
72
73 1488 av_opt_set_int(s, "uch", 0, 0);
74
75 1488 return 0;
76 ✗ fail:
77 ✗ av_log(s, AV_LOG_ERROR, "Failed to set option\n");
78 ✗ swr_free(ps);
79 ✗ return ret;
80 }
81
82 5862 static void set_audiodata_fmt(AudioData *a, enum AVSampleFormat fmt){
83 5862 a->fmt = fmt;
84 5862 a->bps = av_get_bytes_per_sample(fmt);
85 5862 a->planar= av_sample_fmt_is_planar(fmt);
86
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 5862 if (a->ch_count == 1)
87 4580 a->planar = 1;
88 5862 }
89
90 31736 static void free_temp(AudioData *a){
91 31736 av_free(a->data);
92 31736 memset(a, 0, sizeof(*a));
93 31736 }
94
95 3967 static void clear_context(SwrContext *s){
96 3967 s->in_buffer_index= 0;
97 3967 s->in_buffer_count= 0;
98 3967 s->resample_in_constraint= 0;
99 3967 memset(s->in.ch, 0, sizeof(s->in.ch));
100 3967 memset(s->out.ch, 0, sizeof(s->out.ch));
101 3967 free_temp(&s->postin);
102 3967 free_temp(&s->midbuf);
103 3967 free_temp(&s->preout);
104 3967 free_temp(&s->in_buffer);
105 3967 free_temp(&s->silence);
106 3967 free_temp(&s->drop_temp);
107 3967 free_temp(&s->dither.noise);
108 3967 free_temp(&s->dither.temp);
109 3967 av_channel_layout_uninit(&s->in_ch_layout);
110 3967 av_channel_layout_uninit(&s->out_ch_layout);
111 3967 av_channel_layout_uninit(&s->used_ch_layout);
112 3967 swri_audio_convert_free(&s-> in_convert);
113 3967 swri_audio_convert_free(&s->out_convert);
114 3967 swri_audio_convert_free(&s->full_convert);
115 3967 swri_rematrix_free(s);
116
117 3967 s->delayed_samples_fixup = 0;
118 3967 s->flushed = 0;
119 3967 }
120
121 2451 av_cold void swr_free(SwrContext **ss){
122 2451 SwrContext *s= *ss;
123
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 2451 if(s){
124 2426 clear_context(s);
125 2426 av_channel_layout_uninit(&s->user_in_chlayout);
126 2426 av_channel_layout_uninit(&s->user_out_chlayout);
127 2426 av_channel_layout_uninit(&s->user_used_chlayout);
128
129
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 2426 if (s->resampler)
130 1510 s->resampler->free(&s->resample);
131 }
132
133 2451 av_freep(ss);
134 2451 }
135
136 17 av_cold void swr_close(SwrContext *s){
137 17 clear_context(s);
138 17 }
139
140 1524 av_cold int swr_init(struct SwrContext *s){
141 int ret;
142 char l1[1024], l2[1024];
143
144 1524 clear_context(s);
145
146
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 1524 if((unsigned) s-> in_sample_fmt >= AV_SAMPLE_FMT_NB){
147 ✗ av_log(s, AV_LOG_ERROR, "Requested input sample format %d is invalid\n", s->in_sample_fmt);
148 ✗ return AVERROR(EINVAL);
149 }
150
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 1524 if((unsigned) s->out_sample_fmt >= AV_SAMPLE_FMT_NB){
151 ✗ av_log(s, AV_LOG_ERROR, "Requested output sample format %d is invalid\n", s->out_sample_fmt);
152 ✗ return AVERROR(EINVAL);
153 }
154
155
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 1524 if(s-> in_sample_rate <= 0){
156 ✗ av_log(s, AV_LOG_ERROR, "Requested input sample rate %d is invalid\n", s->in_sample_rate);
157 ✗ return AVERROR(EINVAL);
158 }
159
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 1524 if(s->out_sample_rate <= 0){
160 ✗ av_log(s, AV_LOG_ERROR, "Requested output sample rate %d is invalid\n", s->out_sample_rate);
161 ✗ return AVERROR(EINVAL);
162 }
163
164 1524 s->out.ch_count = s-> user_out_chlayout.nb_channels;
165 1524 s-> in.ch_count = s-> user_in_chlayout.nb_channels;
166
167
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 1524 if (!(ret = av_channel_layout_check(&s->user_in_chlayout)) || s->user_in_chlayout.nb_channels > SWR_CH_MAX) {
168 ✗ if (ret)
169 ✗ av_channel_layout_describe(&s->user_in_chlayout, l1, sizeof(l1));
170 ✗ av_log(s, AV_LOG_WARNING, "Input channel layout \"%s\" is invalid or unsupported.\n", ret ? l1 : "");
171 ✗ return AVERROR(EINVAL);
172 }
173
174
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 1524 if (!(ret = av_channel_layout_check(&s->user_out_chlayout)) || s->user_out_chlayout.nb_channels > SWR_CH_MAX) {
175 ✗ if (ret)
176 ✗ av_channel_layout_describe(&s->user_out_chlayout, l2, sizeof(l2));
177 ✗ av_log(s, AV_LOG_WARNING, "Output channel layout \"%s\" is invalid or unsupported.\n", ret ? l2 : "");
178 ✗ return AVERROR(EINVAL);
179 }
180
181 1524 ret = av_channel_layout_copy(&s->in_ch_layout, &s->user_in_chlayout);
182 1524 ret |= av_channel_layout_copy(&s->out_ch_layout, &s->user_out_chlayout);
183 1524 ret |= av_channel_layout_copy(&s->used_ch_layout, &s->user_used_chlayout);
184
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 1524 if (ret < 0)
185 ✗ return ret;
186
187 1524 s->int_sample_fmt= s->user_int_sample_fmt;
188
189 1524 s->dither.method = s->user_dither_method;
190
191
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 1524 switch(s->engine){
192 #if CONFIG_LIBSOXR
193 case SWR_ENGINE_SOXR: s->resampler = &swri_soxr_resampler; break;
194 #endif
195 1524 case SWR_ENGINE_SWR : s->resampler = &swri_resampler; break;
196 ✗ default:
197 ✗ av_log(s, AV_LOG_ERROR, "Requested resampling engine is unavailable\n");
198 ✗ return AVERROR(EINVAL);
199 }
200
201
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 1524 if (!av_channel_layout_check(&s->used_ch_layout))
202 1508 av_channel_layout_default(&s->used_ch_layout, s->in.ch_count);
203
204
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 1524 if (s->used_ch_layout.nb_channels != s->in_ch_layout.nb_channels)
205 7 av_channel_layout_uninit(&s->in_ch_layout);
206
207
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 1524 if (s->used_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC)
208 1 av_channel_layout_default(&s->used_ch_layout, s->used_ch_layout.nb_channels);
209
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 1524 if (s->in_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC) {
210 18 ret = av_channel_layout_copy(&s->in_ch_layout, &s->used_ch_layout);
211
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 18 if (ret < 0)
212 ✗ return ret;
213 }
214
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 1524 if (s->out_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC)
215 12 av_channel_layout_default(&s->out_ch_layout, s->out.ch_count);
216
217 1524 s->rematrix = av_channel_layout_compare(&s->out_ch_layout, &s->in_ch_layout) ||
218
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 3025 s->rematrix_volume!=1.0 ||
219
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 1501 s->rematrix_custom;
220
221
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 1524 if(s->int_sample_fmt == AV_SAMPLE_FMT_NONE){
222 // 16bit or less to 16bit or less with the same sample rate
223
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 885 if( av_get_bytes_per_sample(s-> in_sample_fmt) <= 2
224
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 507 && av_get_bytes_per_sample(s->out_sample_fmt) <= 2
225
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 437 && s->out_sample_rate==s->in_sample_rate) {
226 437 s->int_sample_fmt= AV_SAMPLE_FMT_S16P;
227 // 8 -> 8, 16->8, 8->16bit
228 448 } else if( av_get_bytes_per_sample(s-> in_sample_fmt)
229
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 448 +av_get_bytes_per_sample(s->out_sample_fmt) <= 3 ) {
230 ✗ s->int_sample_fmt= AV_SAMPLE_FMT_S16P;
231
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 448 }else if( av_get_bytes_per_sample(s-> in_sample_fmt) <= 2
232
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 70 && !s->rematrix
233
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 69 && s->out_sample_rate==s->in_sample_rate
234
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 69 && !(s->flags & SWR_FLAG_RESAMPLE)){
235 69 s->int_sample_fmt= AV_SAMPLE_FMT_S16P;
236
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 379 }else if( av_get_planar_sample_fmt(s-> in_sample_fmt) == AV_SAMPLE_FMT_S32P
237
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 75 && av_get_planar_sample_fmt(s->out_sample_fmt) == AV_SAMPLE_FMT_S32P
238
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 41 && !s->rematrix
239
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 41 && s->out_sample_rate == s->in_sample_rate
240
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 41 && !(s->flags & SWR_FLAG_RESAMPLE)
241
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 41 && s->engine != SWR_ENGINE_SOXR){
242 41 s->int_sample_fmt= AV_SAMPLE_FMT_S32P;
243
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 338 }else if(av_get_bytes_per_sample(s->in_sample_fmt) <= 4){
244 300 s->int_sample_fmt= AV_SAMPLE_FMT_FLTP;
245 }else{
246 38 s->int_sample_fmt= AV_SAMPLE_FMT_DBLP;
247 }
248 }
249 1524 av_log(s, AV_LOG_DEBUG, "Using %s internally between filters\n", av_get_sample_fmt_name(s->int_sample_fmt));
250
251
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 1524 if( s->int_sample_fmt != AV_SAMPLE_FMT_S16P
252
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 843 &&s->int_sample_fmt != AV_SAMPLE_FMT_S32P
253
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 658 &&s->int_sample_fmt != AV_SAMPLE_FMT_S64P
254
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 658 &&s->int_sample_fmt != AV_SAMPLE_FMT_FLTP
255
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 194 &&s->int_sample_fmt != AV_SAMPLE_FMT_DBLP){
256 ✗ av_log(s, AV_LOG_ERROR, "Requested sample format %s is not supported internally, s16p/s32p/s64p/fltp/dblp are supported\n", av_get_sample_fmt_name(s->int_sample_fmt));
257 ✗ return AVERROR(EINVAL);
258 }
259
260 1524 set_audiodata_fmt(&s-> in, s-> in_sample_fmt);
261 1524 set_audiodata_fmt(&s->out, s->out_sample_fmt);
262
263
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 1524 if (s->firstpts_in_samples != AV_NOPTS_VALUE) {
264
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 55 if (!s->async && s->min_compensation >= FLT_MAX/2)
265 ✗ s->async = 1;
266
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 55 if (s->firstpts == AV_NOPTS_VALUE)
267 54 s->firstpts =
268 54 s->outpts = s->firstpts_in_samples * s->out_sample_rate;
269 } else
270 1469 s->firstpts = AV_NOPTS_VALUE;
271
272
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 1524 if (s->async) {
273
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 54 if (s->min_compensation >= FLT_MAX/2)
274 53 s->min_compensation = 0.001;
275
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 54 if (s->async > 1.0001) {
276 54 s->max_soft_compensation = s->async / (double) s->in_sample_rate;
277 }
278 }
279
280
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 1524 if (s->out_sample_rate!=s->in_sample_rate || (s->flags & SWR_FLAG_RESAMPLE)){
281 681 s->resample = s->resampler->init(s->resample, s->out_sample_rate, s->in_sample_rate, s->filter_size, s->phase_shift, s->linear_interp, s->cutoff, s->int_sample_fmt, s->filter_type, s->kaiser_beta, s->precision, s->cheby, s->exact_rational);
282
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 681 if (!s->resample) {
283 ✗ av_log(s, AV_LOG_ERROR, "Failed to initialize resampler\n");
284 ✗ return AVERROR(ENOMEM);
285 }
286 }else
287 843 s->resampler->free(&s->resample);
288
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 1524 if( s->int_sample_fmt != AV_SAMPLE_FMT_S16P
289
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 843 && s->int_sample_fmt != AV_SAMPLE_FMT_S32P
290
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 658 && s->int_sample_fmt != AV_SAMPLE_FMT_FLTP
291
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 194 && s->int_sample_fmt != AV_SAMPLE_FMT_DBLP
292 ✗ && s->resample){
293 ✗ av_log(s, AV_LOG_ERROR, "Resampling only supported with internal s16p/s32p/fltp/dblp\n");
294 ✗ ret = AVERROR(EINVAL);
295 ✗ goto fail;
296 }
297
298 #define RSC 1 //FIXME finetune
299
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 1524 if(!s-> in.ch_count)
300 ✗ s-> in.ch_count = s->in_ch_layout.nb_channels;
301
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 1524 if (!av_channel_layout_check(&s->used_ch_layout))
302 ✗ av_channel_layout_default(&s->used_ch_layout, s->in.ch_count);
303
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 1524 if(!s->out.ch_count)
304 ✗ s->out.ch_count = s->out_ch_layout.nb_channels;
305
306
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 1524 if(!s-> in.ch_count){
307 ✗ av_assert0(s->in_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC);
308 ✗ av_log(s, AV_LOG_ERROR, "Input channel count and layout are unset\n");
309 ✗ ret = AVERROR(EINVAL);
310 ✗ goto fail;
311 }
312
313 1524 av_channel_layout_describe(&s->out_ch_layout, l2, sizeof(l2));
314 1524 av_channel_layout_describe(&s->in_ch_layout, l1, sizeof(l1));
315
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 1524 if (s->in_ch_layout.order != AV_CHANNEL_ORDER_UNSPEC && s->used_ch_layout.nb_channels != s->in_ch_layout.nb_channels) {
316 ✗ av_log(s, AV_LOG_ERROR, "Input channel layout %s mismatches specified channel count %d\n", l1, s->used_ch_layout.nb_channels);
317 ✗ ret = AVERROR(EINVAL);
318 ✗ goto fail;
319 }
320
321
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 1524 if (( s->out_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC
322
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 1524 || s-> in_ch_layout.order == AV_CHANNEL_ORDER_UNSPEC) && s->used_ch_layout.nb_channels != s->out.ch_count && !s->rematrix_custom) {
323 ✗ av_log(s, AV_LOG_ERROR, "Rematrix is needed between %s and %s "
324 "but there is not enough information to do it\n", l1, l2);
325 ✗ ret = AVERROR(EINVAL);
326 ✗ goto fail;
327 }
328
329
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 1524 av_assert0(s->used_ch_layout.nb_channels);
330
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 1524 av_assert0(s->out.ch_count);
331 1524 s->resample_first= RSC*s->out.ch_count/s->used_ch_layout.nb_channels - RSC < s->out_sample_rate/(float)s-> in_sample_rate - 1.0;
332
333 1524 s->in_buffer= s->in;
334 1524 s->silence = s->in;
335 1524 s->drop_temp= s->out;
336
337
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 1524 if ((ret = swri_dither_init(s, s->out_sample_fmt, s->int_sample_fmt)) < 0)
338 ✗ goto fail;
339
340
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 1524 if(!s->resample && !s->rematrix && !s->channel_map && !s->dither.method){
341 813 s->full_convert = swri_audio_convert_alloc(s->out_sample_fmt,
342 s-> in_sample_fmt, s-> in.ch_count, NULL, 0);
343 813 return 0;
344 }
345
346 711 s->in_convert = swri_audio_convert_alloc(s->int_sample_fmt,
347 s-> in_sample_fmt, s->used_ch_layout.nb_channels, s->channel_map, 0);
348 711 s->out_convert= swri_audio_convert_alloc(s->out_sample_fmt,
349 s->int_sample_fmt, s->out.ch_count, NULL, 0);
350
351
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 711 if (!s->in_convert || !s->out_convert) {
352 ✗ ret = AVERROR(ENOMEM);
353 ✗ goto fail;
354 }
355
356 711 s->postin= s->in;
357 711 s->preout= s->out;
358 711 s->midbuf= s->in;
359
360
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 711 if(s->channel_map){
361 16 s->postin.ch_count=
362 16 s->midbuf.ch_count= s->used_ch_layout.nb_channels;
363
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 16 if(s->resample)
364 ✗ s->in_buffer.ch_count= s->used_ch_layout.nb_channels;
365 }
366
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 711 if(!s->resample_first){
367 345 s->midbuf.ch_count= s->out.ch_count;
368
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 345 if(s->resample)
369 323 s->in_buffer.ch_count = s->out.ch_count;
370 }
371
372 711 set_audiodata_fmt(&s->postin, s->int_sample_fmt);
373 711 set_audiodata_fmt(&s->midbuf, s->int_sample_fmt);
374 711 set_audiodata_fmt(&s->preout, s->int_sample_fmt);
375
376
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 711 if(s->resample){
377 681 set_audiodata_fmt(&s->in_buffer, s->int_sample_fmt);
378 }
379
380
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 711 av_assert0(!s->preout.count);
381 711 s->dither.noise = s->preout;
382 711 s->dither.temp = s->preout;
383
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 711 if (s->dither.method > SWR_DITHER_NS) {
384 ✗ s->dither.noise.bps = 4;
385 ✗ s->dither.noise.fmt = AV_SAMPLE_FMT_FLTP;
386 ✗ s->dither.noise_scale = 1;
387 }
388
389
3/4
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 711 if(s->rematrix || s->dither.method) {
390 25 ret = swri_rematrix_init(s);
391
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 25 if (ret < 0)
392 ✗ goto fail;
393 }
394
395 711 return 0;
396 ✗ fail:
397 ✗ swr_close(s);
398 ✗ return ret;
399
400 }
401
402 98962 int swri_realloc_audio(AudioData *a, int count){
403 int i, countb;
404 AudioData old;
405
406
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 98962 if(count < 0 || count > INT_MAX/2/a->bps/a->ch_count)
407 ✗ return AVERROR(EINVAL);
408
409
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 98962 if(a->count >= count)
410 94940 return 0;
411
412 4022 count*=2;
413
414 4022 countb= FFALIGN(count*a->bps, ALIGN);
415 4022 old= *a;
416
417
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 4022 av_assert0(a->bps);
418
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 4022 av_assert0(a->ch_count);
419
420 4022 a->data = av_calloc(countb, a->ch_count);
421
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 4022 if(!a->data)
422 ✗ return AVERROR(ENOMEM);
423
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 8462 for(i=0; i<a->ch_count; i++){
424
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 4440 a->ch[i]= a->data + i*(a->planar ? countb : a->bps);
425
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 4440 if(a->count && a->planar) memcpy(a->ch[i], old.ch[i], a->count*a->bps);
426 }
427
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 4022 if(a->count && !a->planar) memcpy(a->ch[0], old.ch[0], a->count*a->ch_count*a->bps);
428 4022 av_freep(&old.data);
429 4022 a->count= count;
430
431 4022 return 1;
432 }
433
434 34986 static void copy(AudioData *out, AudioData *in,
435 int count){
436
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 34986 av_assert0(out->planar == in->planar);
437
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 34986 av_assert0(out->bps == in->bps);
438
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 34986 av_assert0(out->ch_count == in->ch_count);
439
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 34986 if(out->planar){
440 int ch;
441
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 90189 for(ch=0; ch<out->ch_count; ch++)
442 55203 memcpy(out->ch[ch], in->ch[ch], count*out->bps);
443 }else
444 ✗ memcpy(out->ch[0], in->ch[0], count*out->ch_count*out->bps);
445 34986 }
446
447 449393 static void fill_audiodata(AudioData *out, uint8_t *const in_arg [SWR_CH_MAX])
448 {
449 int i;
450
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 449393 if(!in_arg){
451 68 memset(out->ch, 0, sizeof(out->ch));
452
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 449325 }else if(out->planar){
453
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 822617 for(i=0; i<out->ch_count; i++)
454 498392 out->ch[i]= in_arg[i];
455 }else{
456
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 418560 for(i=0; i<out->ch_count; i++)
457 293460 out->ch[i]= in_arg[0] + i*out->bps;
458 }
459 449393 }
460
461 137 static void reversefill_audiodata(AudioData *out, uint8_t *in_arg [SWR_CH_MAX]){
462 int i;
463
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 137 if(out->planar){
464
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 274 for(i=0; i<out->ch_count; i++)
465 137 in_arg[i]= out->ch[i];
466 }else{
467 ✗ in_arg[0]= out->ch[0];
468 }
469 137 }
470
471 /**
472 *
473 * out may be equal in.
474 */
475 422404 static void buf_set(AudioData *out, AudioData *in, int count){
476 int ch;
477
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 422404 if(in->planar){
478
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 1100738 for(ch=0; ch<out->ch_count; ch++)
479 688439 out->ch[ch]= in->ch[ch] + count*out->bps;
480 }else{
481
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 34924 for(ch=out->ch_count-1; ch>=0; ch--)
482 24819 out->ch[ch]= in->ch[0] + (ch + count*out->ch_count) * out->bps;
483 }
484 422404 }
485
486 /**
487 *
488 * @return number of samples output per channel
489 */
490 19384 static int resample(SwrContext *s, AudioData *out_param, int out_count,
491 const AudioData * in_param, int in_count){
492 AudioData in, out, tmp;
493 19384 int ret_sum=0;
494 19384 int border=0;
495
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 19384 int padless = ARCH_X86 && s->engine == SWR_ENGINE_SWR ? 7 : 0;
496
497 av_assert1(s->in_buffer.ch_count == in_param->ch_count);
498 av_assert1(s->in_buffer.planar == in_param->planar);
499 av_assert1(s->in_buffer.fmt == in_param->fmt);
500
501 19384 tmp=out=*out_param;
502 19384 in = *in_param;
503
504 19384 border = s->resampler->invert_initial_buffer(s->resample, &s->in_buffer,
505 &in, in_count, &s->in_buffer_index, &s->in_buffer_count);
506
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 19384 if (border == INT_MAX) {
507 87 return 0;
508
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 19297 } else if (border < 0) {
509 ✗ return border;
510
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 19297 } else if (border) {
511 679 buf_set(&in, &in, border);
512 679 in_count -= border;
513 679 s->resample_in_constraint = 0;
514 }
515
516 34951 do{
517 int ret, size, consumed;
518
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✓ Branch 3 taken 6 times.
 54248 if(!s->resample_in_constraint && s->in_buffer_count){
519 46454 buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
520 46454 ret= s->resampler->multiple_resample(s->resample, &out, out_count, &tmp, s->in_buffer_count, &consumed);
521 46454 out_count -= ret;
522 46454 ret_sum += ret;
523 46454 buf_set(&out, &out, ret);
524 46454 s->in_buffer_count -= consumed;
525 46454 s->in_buffer_index += consumed;
526
527
2/2
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 46454 if(!in_count)
528 19292 break;
529
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 27162 if(s->in_buffer_count <= border){
530 17581 buf_set(&in, &in, -s->in_buffer_count);
531 17581 in_count += s->in_buffer_count;
532 17581 s->in_buffer_count=0;
533 17581 s->in_buffer_index=0;
534 17581 border = 0;
535 }
536 }
537
538
6/6
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 34956 if((s->flushed || in_count > padless) && !s->in_buffer_count){
539 17625 s->in_buffer_index=0;
540 17625 ret= s->resampler->multiple_resample(s->resample, &out, out_count, &in, FFMAX(in_count-padless, 0), &consumed);
541 17625 out_count -= ret;
542 17625 ret_sum += ret;
543 17625 buf_set(&out, &out, ret);
544 17625 in_count -= consumed;
545 17625 buf_set(&in, &in, consumed);
546 }
547
548 //TODO is this check sane considering the advanced copy avoidance below
549 34956 size= s->in_buffer_index + s->in_buffer_count + in_count;
550
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 34956 if( size > s->in_buffer.count
551
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 692 && s->in_buffer_count + in_count <= s->in_buffer_index){
552 ✗ buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
553 ✗ copy(&s->in_buffer, &tmp, s->in_buffer_count);
554 ✗ s->in_buffer_index=0;
555 }else
556
1/2
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 34956 if((ret=swri_realloc_audio(&s->in_buffer, size)) < 0)
557 ✗ return ret;
558
559
2/2
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✓ Branch 1 taken 5 times.
 34956 if(in_count){
560 34951 int count= in_count;
561
6/6
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✓ Branch 5 taken 20 times.
 34951 if(s->in_buffer_count && s->in_buffer_count+2 < count && out_count) count= s->in_buffer_count+2;
562
563 34951 buf_set(&tmp, &s->in_buffer, s->in_buffer_index + s->in_buffer_count);
564 34951 copy(&tmp, &in, /*in_*/count);
565 34951 s->in_buffer_count += count;
566 34951 in_count -= count;
567 34951 border += count;
568 34951 buf_set(&in, &in, count);
569 34951 s->resample_in_constraint= 0;
570
3/4
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 34951 if(s->in_buffer_count != count || in_count)
571 34951 continue;
572
1/2
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 17621 if (padless) {
573 17621 padless = 0;
574 17621 continue;
575 }
576 }
577 5 break;
578 }while(1);
579
580 19297 s->resample_in_constraint= !!out_count;
581
582 19297 return ret_sum;
583 }
584
585 225308 static int swr_convert_internal(struct SwrContext *s, AudioData *out, int out_count,
586 AudioData *in , int in_count){
587 AudioData *postin, *midbuf, *preout;
588 int ret/*, in_max*/;
589 AudioData preout_tmp, midbuf_tmp;
590
591
2/2
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 225308 if(s->full_convert){
592
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 204504 av_assert0(!s->resample);
593 204504 swri_audio_convert(s->full_convert, out, in, in_count);
594 204504 return out_count;
595 }
596
597 // in_max= out_count*(int64_t)s->in_sample_rate / s->out_sample_rate + resample_filter_taps;
598 // in_count= FFMIN(in_count, in_in + 2 - s->hist_buffer_count);
599
600
1/2
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 20804 if((ret=swri_realloc_audio(&s->postin, in_count))<0)
601 ✗ return ret;
602
2/2
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 20804 if(s->resample_first){
603
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 14727 av_assert0(s->midbuf.ch_count == s->used_ch_layout.nb_channels);
604
1/2
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 14727 if((ret=swri_realloc_audio(&s->midbuf, out_count))<0)
605 ✗ return ret;
606 }else{
607
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 6077 av_assert0(s->midbuf.ch_count == s->out.ch_count);
608
1/2
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 6077 if((ret=swri_realloc_audio(&s->midbuf, in_count))<0)
609 ✗ return ret;
610 }
611
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✓ Branch 2 taken 20804 times.
 20804 if((ret=swri_realloc_audio(&s->preout, out_count))<0)
612 ✗ return ret;
613
614 20804 postin= &s->postin;
615
616 20804 midbuf_tmp= s->midbuf;
617 20804 midbuf= &midbuf_tmp;
618 20804 preout_tmp= s->preout;
619 20804 preout= &preout_tmp;
620
621
4/6
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 20804 if(s->int_sample_fmt == s-> in_sample_fmt && s->in.planar && !s->channel_map)
622 14711 postin= in;
623
624
4/4
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 20804 if(s->resample_first ? !s->resample : !s->rematrix)
625 5568 midbuf= postin;
626
627
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 20804 if(s->resample_first ? !s->rematrix : !s->resample)
628 15636 preout= midbuf;
629
630
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 20804 if(s->int_sample_fmt == s->out_sample_fmt && s->out.planar
631
3/4
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 14029 && !(s->out_sample_fmt==AV_SAMPLE_FMT_S32P && (s->dither.output_sample_bits&31))){
632
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 14029 if(preout==in){
633 ✗ out_count= FFMIN(out_count, in_count); //TODO check at the end if this is needed or redundant
634 ✗ av_assert0(s->in.planar); //we only support planar internally so it has to be, we support copying non planar though
635 ✗ copy(out, in, out_count);
636 ✗ return out_count;
637 }
638
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 14029 else if(preout==postin) preout= midbuf= postin= out;
639
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 14029 else if(preout==midbuf) preout= midbuf= out;
640 1043 else preout= out;
641 }
642
643
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 20804 if(in != postin){
644 6093 swri_audio_convert(s->in_convert, postin, in, in_count);
645 }
646
647
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 20804 if(s->resample_first){
648
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 14727 if(postin != midbuf)
649
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 14507 if ((out_count = resample(s, midbuf, out_count, postin, in_count)) < 0)
650 ✗ return out_count;
651
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 14727 if(midbuf != preout)
652 291 swri_rematrix(s, preout, midbuf, out_count, preout==out);
653 }else{
654
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 6077 if(postin != midbuf)
655 729 swri_rematrix(s, midbuf, postin, in_count, midbuf==out);
656
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 6077 if(midbuf != preout)
657
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 4877 if ((out_count = resample(s, preout, out_count, midbuf, in_count)) < 0)
658 ✗ return out_count;
659 }
660
661
4/4
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 20804 if(preout != out && out_count){
662 6448 AudioData *conv_src = preout;
663
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 6448 if(s->dither.method){
664 int ch;
665 ✗ int dither_count= FFMAX(out_count, 1<<16);
666
667 ✗ if (preout == in) {
668 ✗ conv_src = &s->dither.temp;
669 ✗ if((ret=swri_realloc_audio(&s->dither.temp, dither_count))<0)
670 ✗ return ret;
671 }
672
673 ✗ if((ret=swri_realloc_audio(&s->dither.noise, dither_count))<0)
674 ✗ return ret;
675 ✗ if(ret)
676 ✗ for(ch=0; ch<s->dither.noise.ch_count; ch++)
677 ✗ if((ret=swri_get_dither(s, s->dither.noise.ch[ch], s->dither.noise.count, (12345678913579ULL*ch + 3141592) % 2718281828U, s->dither.noise.fmt))<0)
678 ✗ return ret;
679 ✗ av_assert0(s->dither.noise.ch_count == preout->ch_count);
680
681 ✗ if(s->dither.noise_pos + out_count > s->dither.noise.count)
682 ✗ s->dither.noise_pos = 0;
683
684 ✗ if (s->dither.method < SWR_DITHER_NS){
685 ✗ if (s->mix_2_1_simd) {
686 ✗ int len1= out_count&~15;
687 ✗ int off = len1 * preout->bps;
688
689 ✗ if(len1)
690 ✗ for(ch=0; ch<preout->ch_count; ch++)
691 ✗ s->mix_2_1_simd(conv_src->ch[ch], preout->ch[ch], s->dither.noise.ch[ch] + s->dither.noise.bps * s->dither.noise_pos, s->native_simd_one, 0, 0, len1);
692 ✗ if(out_count != len1)
693 ✗ for(ch=0; ch<preout->ch_count; ch++)
694 ✗ s->mix_2_1_f(conv_src->ch[ch] + off, preout->ch[ch] + off, s->dither.noise.ch[ch] + s->dither.noise.bps * s->dither.noise_pos + off, s->native_one, 0, 0, out_count - len1);
695 } else {
696 ✗ for(ch=0; ch<preout->ch_count; ch++)
697 ✗ s->mix_2_1_f(conv_src->ch[ch], preout->ch[ch], s->dither.noise.ch[ch] + s->dither.noise.bps * s->dither.noise_pos, s->native_one, 0, 0, out_count);
698 }
699 } else {
700 ✗ switch(s->int_sample_fmt) {
701 ✗ case AV_SAMPLE_FMT_S16P :swri_noise_shaping_int16(s, conv_src, preout, &s->dither.noise, out_count); break;
702 ✗ case AV_SAMPLE_FMT_S32P :swri_noise_shaping_int32(s, conv_src, preout, &s->dither.noise, out_count); break;
703 ✗ case AV_SAMPLE_FMT_FLTP :swri_noise_shaping_float(s, conv_src, preout, &s->dither.noise, out_count); break;
704 ✗ case AV_SAMPLE_FMT_DBLP :swri_noise_shaping_double(s,conv_src, preout, &s->dither.noise, out_count); break;
705 }
706 }
707 ✗ s->dither.noise_pos += out_count;
708 }
709 //FIXME packed doesn't need more than 1 chan here!
710 6448 swri_audio_convert(s->out_convert, out, conv_src, out_count);
711 }
712 20804 return out_count;
713 }
714
715 261829 int swr_is_initialized(struct SwrContext *s) {
716 261829 return !!s->in_buffer.ch_count;
717 }
718
719 226028 int attribute_align_arg swr_convert(struct SwrContext *s,
720 uint8_t * const *out_arg, int out_count,
721 const uint8_t * const *in_arg, int in_count)
722 {
723 226028 AudioData * in= &s->in;
724 226028 AudioData *out= &s->out;
725 int av_unused max_output;
726
727
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 226028 if (!swr_is_initialized(s)) {
728 ✗ av_log(s, AV_LOG_ERROR, "Context has not been initialized\n");
729 ✗ return AVERROR(EINVAL);
730 }
731 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL >1
732 max_output = swr_get_out_samples(s, in_count);
733 #endif
734
735
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 226080 while(s->drop_output > 0){
736 int ret;
737 uint8_t *tmp_arg[SWR_CH_MAX];
738 #define MAX_DROP_STEP 16384
739
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 104 if((ret=swri_realloc_audio(&s->drop_temp, FFMIN(s->drop_output, MAX_DROP_STEP)))<0)
740 52 return ret;
741
742 104 reversefill_audiodata(&s->drop_temp, tmp_arg);
743 104 s->drop_output *= -1; //FIXME find a less hackish solution
744
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 104 ret = swr_convert(s, tmp_arg, FFMIN(-s->drop_output, MAX_DROP_STEP), in_arg, in_count); //FIXME optimize but this is as good as never called so maybe it doesn't matter
745 104 s->drop_output *= -1;
746 104 in_count = 0;
747
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 104 if(ret>0) {
748 52 s->drop_output -= ret;
749
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 52 if (!s->drop_output && !out_arg)
750 ✗ return 0;
751 52 continue;
752 }
753
754
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 52 av_assert0(s->drop_output);
755 52 return 0;
756 }
757
758
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 225976 if(!in_arg){
759
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 1925 if(s->resample){
760
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 1291 if (!s->flushed)
761 656 s->resampler->flush(s);
762 1291 s->resample_in_constraint = 0;
763 1291 s->flushed = 1;
764
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 634 }else if(!s->in_buffer_count){
765 634 return 0;
766 }
767 }else
768 224051 fill_audiodata(in , (void*)in_arg);
769
770 225342 fill_audiodata(out, out_arg);
771
772
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 225342 if(s->resample){
773 19384 int ret = swr_convert_internal(s, out, out_count, in, in_count);
774
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 19384 if(ret>0 && !s->drop_output)
775 18592 s->outpts += ret * (int64_t)s->in_sample_rate;
776
777 av_assert2(max_output < 0 || ret <= max_output);
778
779 19384 return ret;
780 }else{
781 205958 AudioData tmp= *in;
782 205958 int ret2=0;
783 int ret, size;
784 205958 size = FFMIN(out_count, s->in_buffer_count);
785
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 205958 if(size){
786 125 buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
787 125 ret= swr_convert_internal(s, out, size, &tmp, size);
788
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 125 if(ret<0)
789 ✗ return ret;
790 125 ret2= ret;
791 125 s->in_buffer_count -= ret;
792 125 s->in_buffer_index += ret;
793 125 buf_set(out, out, ret);
794 125 out_count -= ret;
795
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 125 if(!s->in_buffer_count)
796 4 s->in_buffer_index = 0;
797 }
798
799
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 205958 if(in_count){
800 205833 size= s->in_buffer_index + s->in_buffer_count + in_count - out_count;
801
802
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 205833 if(in_count > out_count) { //FIXME move after swr_convert_internal
803
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 35 if( size > s->in_buffer.count
804
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 5 && s->in_buffer_count + in_count - out_count <= s->in_buffer_index){
805 ✗ buf_set(&tmp, &s->in_buffer, s->in_buffer_index);
806 ✗ copy(&s->in_buffer, &tmp, s->in_buffer_count);
807 ✗ s->in_buffer_index=0;
808 }else
809
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 35 if((ret=swri_realloc_audio(&s->in_buffer, size)) < 0)
810 ✗ return ret;
811 }
812
813
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 205833 if(out_count){
814 205799 size = FFMIN(in_count, out_count);
815 205799 ret= swr_convert_internal(s, out, size, in, size);
816
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 205799 if(ret<0)
817 ✗ return ret;
818 205799 buf_set(in, in, ret);
819 205799 in_count -= ret;
820 205799 ret2 += ret;
821 }
822
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 205833 if(in_count){
823 35 buf_set(&tmp, &s->in_buffer, s->in_buffer_index + s->in_buffer_count);
824 35 copy(&tmp, in, in_count);
825 35 s->in_buffer_count += in_count;
826 }
827 }
828
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 205958 if(ret2>0 && !s->drop_output)
829 205923 s->outpts += ret2 * (int64_t)s->in_sample_rate;
830 av_assert2(max_output < 0 || ret2 < 0 || ret2 <= max_output);
831 205958 return ret2;
832 }
833 }
834
835 52 int swr_drop_output(struct SwrContext *s, int count){
836 const uint8_t *tmp_arg[SWR_CH_MAX];
837 52 s->drop_output += count;
838
839
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 52 if(s->drop_output <= 0)
840 ✗ return 0;
841
842 52 av_log(s, AV_LOG_VERBOSE, "discarding %d audio samples\n", count);
843 52 return swr_convert(s, NULL, s->drop_output, tmp_arg, 0);
844 }
845
846 33 int swr_inject_silence(struct SwrContext *s, int count){
847 int ret, i;
848 uint8_t *tmp_arg[SWR_CH_MAX];
849
850
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 33 if(count <= 0)
851 ✗ return 0;
852
853 #define MAX_SILENCE_STEP 16384
854
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 62 while (count > MAX_SILENCE_STEP) {
855
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 29 if ((ret = swr_inject_silence(s, MAX_SILENCE_STEP)) < 0)
856 ✗ return ret;
857 29 count -= MAX_SILENCE_STEP;
858 }
859
860
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 33 if((ret=swri_realloc_audio(&s->silence, count))<0)
861 ✗ return ret;
862
863
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 66 if(s->silence.planar) for(i=0; i<s->silence.ch_count; i++) {
864
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 33 memset(s->silence.ch[i], s->silence.bps==1 ? 0x80 : 0, count*s->silence.bps);
865 } else
866 ✗ memset(s->silence.ch[0], s->silence.bps==1 ? 0x80 : 0, count*s->silence.bps*s->silence.ch_count);
867
868 33 reversefill_audiodata(&s->silence, tmp_arg);
869 33 av_log(s, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", count);
870 33 ret = swr_convert(s, NULL, 0, (const uint8_t**)tmp_arg, count);
871 33 return ret;
872 }
873
874 426238 int64_t swr_get_delay(struct SwrContext *s, int64_t base){
875
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 426238 if (s->resampler && s->resample){
876 16854 return s->resampler->get_delay(s, base);
877 }else{
878 409384 return (s->in_buffer_count*base + (s->in_sample_rate>>1))/ s->in_sample_rate;
879 }
880 }
881
882 ✗ int swr_get_out_samples(struct SwrContext *s, int in_samples)
883 {
884 int64_t out_samples;
885
886 ✗ if (in_samples < 0)
887 ✗ return AVERROR(EINVAL);
888
889 ✗ if (s->resampler && s->resample) {
890 ✗ if (!s->resampler->get_out_samples)
891 ✗ return AVERROR(ENOSYS);
892 ✗ out_samples = s->resampler->get_out_samples(s, in_samples);
893 } else {
894 ✗ out_samples = s->in_buffer_count + in_samples;
895 ✗ av_assert0(s->out_sample_rate == s->in_sample_rate);
896 }
897
898 ✗ if (out_samples > INT_MAX)
899 ✗ return AVERROR(EINVAL);
900
901 ✗ return out_samples;
902 }
903
904 127 int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance){
905 int ret;
906
907
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 127 if (!s || compensation_distance < 0)
908 ✗ return AVERROR(EINVAL);
909
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 127 if (!compensation_distance && sample_delta)
910 ✗ return AVERROR(EINVAL);
911
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 127 if (!s->resample) {
912 1 s->flags |= SWR_FLAG_RESAMPLE;
913 1 ret = swr_init(s);
914
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 1 if (ret < 0)
915 ✗ return ret;
916 }
917
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 127 if (!s->resampler->set_compensation){
918 ✗ return AVERROR(EINVAL);
919 }else{
920 127 return s->resampler->set_compensation(s->resample, sample_delta, compensation_distance);
921 }
922 }
923
924 215154 int64_t swr_next_pts(struct SwrContext *s, int64_t pts){
925
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 215154 if(pts == INT64_MIN)
926 2035 return s->outpts;
927
928
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 213119 if (s->firstpts == AV_NOPTS_VALUE)
929 1409 s->outpts = s->firstpts = pts;
930
931
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 213119 if(s->min_compensation >= FLT_MAX) {
932 211888 return (s->outpts = pts - swr_get_delay(s, s->in_sample_rate * (int64_t)s->out_sample_rate));
933 } else {
934 1231 int64_t delta = pts - swr_get_delay(s, s->in_sample_rate * (int64_t)s->out_sample_rate) - s->outpts + s->drop_output*(int64_t)s->in_sample_rate;
935 1231 double fdelta = delta /(double)(s->in_sample_rate * (int64_t)s->out_sample_rate);
936
937
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 1231 if(fabs(fdelta) > s->min_compensation) {
938
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 239 if(s->outpts == s->firstpts || fabs(fdelta) > s->min_hard_compensation){
939 int ret;
940
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 56 if(delta > 0) ret = swr_inject_silence(s, delta / s->out_sample_rate);
941 52 else ret = swr_drop_output (s, -delta / s-> in_sample_rate);
942
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 56 if(ret<0){
943 ✗ av_log(s, AV_LOG_ERROR, "Failed to compensate for timestamp delta of %f\n", fdelta);
944 }
945
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 127 } else if(s->soft_compensation_duration && s->max_soft_compensation) {
946 127 int duration = s->out_sample_rate * s->soft_compensation_duration;
947
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 127 double max_soft_compensation = s->max_soft_compensation / (s->max_soft_compensation < 0 ? -s->in_sample_rate : 1);
948 127 int comp = av_clipf(fdelta, -max_soft_compensation, max_soft_compensation) * duration ;
949 127 av_log(s, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n", fdelta, comp, duration);
950 127 swr_set_compensation(s, comp, duration);
951 }
952 }
953
954 1231 return s->outpts;
955 }
956 }
957