FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/fftools/opt_common.c
Date: 2024-05-26 22:00:00
Exec Total Coverage
Lines: 77 761 10.1%
Functions: 6 52 11.5%
Branches: 83 637 13.0%

Line Branch Exec Source
1 /*
2 * Option handlers shared between the tools.
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
23 #include <stdio.h>
24
25 #include "cmdutils.h"
26 #include "opt_common.h"
27
28 #include "libavutil/avassert.h"
29 #include "libavutil/avstring.h"
30 #include "libavutil/bprint.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/cpu.h"
33 #include "libavutil/dict.h"
34 #include "libavutil/error.h"
35 #include "libavutil/ffversion.h"
36 #include "libavutil/log.h"
37 #include "libavutil/mem.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/pixdesc.h"
40 #include "libavutil/version.h"
41
42 #include "libavcodec/avcodec.h"
43 #include "libavcodec/bsf.h"
44 #include "libavcodec/codec.h"
45 #include "libavcodec/codec_desc.h"
46 #include "libavcodec/version.h"
47
48 #include "libavformat/avformat.h"
49 #include "libavformat/version.h"
50
51 #include "libavdevice/avdevice.h"
52 #include "libavdevice/version.h"
53
54 #include "libavfilter/avfilter.h"
55 #include "libavfilter/version.h"
56
57 #include "libswscale/swscale.h"
58 #include "libswscale/version.h"
59
60 #include "libswresample/swresample.h"
61 #include "libswresample/version.h"
62
63 #include "libpostproc/postprocess.h"
64 #include "libpostproc/version.h"
65
66 enum show_muxdemuxers {
67 SHOW_DEFAULT,
68 SHOW_DEMUXERS,
69 SHOW_MUXERS,
70 };
71
72 static FILE *report_file;
73 static int report_file_level = AV_LOG_DEBUG;
74
75 int show_license(void *optctx, const char *opt, const char *arg)
76 {
77 #if CONFIG_NONFREE
78 printf(
79 "This version of %s has nonfree parts compiled in.\n"
80 "Therefore it is not legally redistributable.\n",
81 program_name );
82 #elif CONFIG_GPLV3
83 printf(
84 "%s is free software; you can redistribute it and/or modify\n"
85 "it under the terms of the GNU General Public License as published by\n"
86 "the Free Software Foundation; either version 3 of the License, or\n"
87 "(at your option) any later version.\n"
88 "\n"
89 "%s is distributed in the hope that it will be useful,\n"
90 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
91 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
92 "GNU General Public License for more details.\n"
93 "\n"
94 "You should have received a copy of the GNU General Public License\n"
95 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
96 program_name, program_name, program_name );
97 #elif CONFIG_GPL
98 printf(
99 "%s is free software; you can redistribute it and/or modify\n"
100 "it under the terms of the GNU General Public License as published by\n"
101 "the Free Software Foundation; either version 2 of the License, or\n"
102 "(at your option) any later version.\n"
103 "\n"
104 "%s is distributed in the hope that it will be useful,\n"
105 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
106 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
107 "GNU General Public License for more details.\n"
108 "\n"
109 "You should have received a copy of the GNU General Public License\n"
110 "along with %s; if not, write to the Free Software\n"
111 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
112 program_name, program_name, program_name );
113 #elif CONFIG_LGPLV3
114 printf(
115 "%s is free software; you can redistribute it and/or modify\n"
116 "it under the terms of the GNU Lesser General Public License as published by\n"
117 "the Free Software Foundation; either version 3 of the License, or\n"
118 "(at your option) any later version.\n"
119 "\n"
120 "%s is distributed in the hope that it will be useful,\n"
121 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
122 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
123 "GNU Lesser General Public License for more details.\n"
124 "\n"
125 "You should have received a copy of the GNU Lesser General Public License\n"
126 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
127 program_name, program_name, program_name );
128 #else
129 printf(
130 "%s is free software; you can redistribute it and/or\n"
131 "modify it under the terms of the GNU Lesser General Public\n"
132 "License as published by the Free Software Foundation; either\n"
133 "version 2.1 of the License, or (at your option) any later version.\n"
134 "\n"
135 "%s is distributed in the hope that it will be useful,\n"
136 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
137 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
138 "Lesser General Public License for more details.\n"
139 "\n"
140 "You should have received a copy of the GNU Lesser General Public\n"
141 "License along with %s; if not, write to the Free Software\n"
142 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
143 program_name, program_name, program_name );
144 #endif
145
146 return 0;
147 }
148
149 static int warned_cfg = 0;
150
151 #define INDENT 1
152 #define SHOW_VERSION 2
153 #define SHOW_CONFIG 4
154 #define SHOW_COPYRIGHT 8
155
156 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
157 if (CONFIG_##LIBNAME) { \
158 const char *indent = flags & INDENT? " " : ""; \
159 if (flags & SHOW_VERSION) { \
160 unsigned int version = libname##_version(); \
161 av_log(NULL, level, \
162 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
163 indent, #libname, \
164 LIB##LIBNAME##_VERSION_MAJOR, \
165 LIB##LIBNAME##_VERSION_MINOR, \
166 LIB##LIBNAME##_VERSION_MICRO, \
167 AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
168 AV_VERSION_MICRO(version)); \
169 } \
170 if (flags & SHOW_CONFIG) { \
171 const char *cfg = libname##_configuration(); \
172 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
173 if (!warned_cfg) { \
174 av_log(NULL, level, \
175 "%sWARNING: library configuration mismatch\n", \
176 indent); \
177 warned_cfg = 1; \
178 } \
179 av_log(NULL, level, "%s%-11s configuration: %s\n", \
180 indent, #libname, cfg); \
181 } \
182 } \
183 } \
184
185 13822 static void print_all_libs_info(int flags, int level)
186 {
187
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13822 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
188
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13822 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
189
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13822 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
190
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13822 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
191
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13822 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
192
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13822 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
193
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13822 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
194
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13822 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
195 13822 }
196
197 6911 static void print_program_info(int flags, int level)
198 {
199
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6911 const char *indent = flags & INDENT? " " : "";
200
201 6911 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
202
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6911 if (flags & SHOW_COPYRIGHT)
203 6911 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
204 program_birth_year, CONFIG_THIS_YEAR);
205 6911 av_log(NULL, level, "\n");
206 6911 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
207
208 6911 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
209 6911 }
210
211 static void print_buildconf(int flags, int level)
212 {
213 const char *indent = flags & INDENT ? " " : "";
214 char str[] = { FFMPEG_CONFIGURATION };
215 char *conflist, *remove_tilde, *splitconf;
216
217 // Change all the ' --' strings to '~--' so that
218 // they can be identified as tokens.
219 while ((conflist = strstr(str, " --")) != NULL) {
220 conflist[0] = '~';
221 }
222
223 // Compensate for the weirdness this would cause
224 // when passing 'pkg-config --static'.
225 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
226 remove_tilde[sizeof("pkg-config~") - 2] = ' ';
227 }
228
229 splitconf = strtok(str, "~");
230 av_log(NULL, level, "\n%sconfiguration:\n", indent);
231 while (splitconf != NULL) {
232 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
233 splitconf = strtok(NULL, "~");
234 }
235 }
236
237 6911 void show_banner(int argc, char **argv, const OptionDef *options)
238 {
239 6911 int idx = locate_option(argc, argv, options, "version");
240
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6911 if (hide_banner || idx)
241 return;
242
243 6911 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
244 6911 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
245 6911 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
246 }
247
248 int show_version(void *optctx, const char *opt, const char *arg)
249 {
250 av_log_set_callback(log_callback_help);
251 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
252 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
253
254 return 0;
255 }
256
257 int show_buildconf(void *optctx, const char *opt, const char *arg)
258 {
259 av_log_set_callback(log_callback_help);
260 print_buildconf (INDENT|0, AV_LOG_INFO);
261
262 return 0;
263 }
264
265 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
266 if (codec->field) { \
267 const type *p = codec->field; \
268 \
269 printf(" Supported " list_name ":"); \
270 while (*p != term) { \
271 get_name(*p); \
272 printf(" %s", name); \
273 p++; \
274 } \
275 printf("\n"); \
276 } \
277
278 static void print_codec(const AVCodec *c)
279 {
280 int encoder = av_codec_is_encoder(c);
281
282 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
283 c->long_name ? c->long_name : "");
284
285 printf(" General capabilities: ");
286 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
287 printf("horizband ");
288 if (c->capabilities & AV_CODEC_CAP_DR1)
289 printf("dr1 ");
290 if (c->capabilities & AV_CODEC_CAP_DELAY)
291 printf("delay ");
292 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
293 printf("small ");
294 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
295 printf("exp ");
296 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
297 printf("chconf ");
298 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
299 printf("paramchange ");
300 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
301 printf("variable ");
302 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
303 AV_CODEC_CAP_SLICE_THREADS |
304 AV_CODEC_CAP_OTHER_THREADS))
305 printf("threads ");
306 if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
307 printf("avoidprobe ");
308 if (c->capabilities & AV_CODEC_CAP_HARDWARE)
309 printf("hardware ");
310 if (c->capabilities & AV_CODEC_CAP_HYBRID)
311 printf("hybrid ");
312 if (!c->capabilities)
313 printf("none");
314 printf("\n");
315
316 if (c->type == AVMEDIA_TYPE_VIDEO ||
317 c->type == AVMEDIA_TYPE_AUDIO) {
318 printf(" Threading capabilities: ");
319 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
320 AV_CODEC_CAP_SLICE_THREADS |
321 AV_CODEC_CAP_OTHER_THREADS)) {
322 case AV_CODEC_CAP_FRAME_THREADS |
323 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
324 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
325 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
326 case AV_CODEC_CAP_OTHER_THREADS: printf("other"); break;
327 default: printf("none"); break;
328 }
329 printf("\n");
330 }
331
332 if (avcodec_get_hw_config(c, 0)) {
333 printf(" Supported hardware devices: ");
334 for (int i = 0;; i++) {
335 const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
336 const char *name;
337 if (!config)
338 break;
339 name = av_hwdevice_get_type_name(config->device_type);
340 if (name)
341 printf("%s ", name);
342 }
343 printf("\n");
344 }
345
346 if (c->supported_framerates) {
347 const AVRational *fps = c->supported_framerates;
348
349 printf(" Supported framerates:");
350 while (fps->num) {
351 printf(" %d/%d", fps->num, fps->den);
352 fps++;
353 }
354 printf("\n");
355 }
356 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
357 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
358 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
359 GET_SAMPLE_RATE_NAME);
360 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
361 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
362
363 if (c->ch_layouts) {
364 const AVChannelLayout *p = c->ch_layouts;
365
366 printf(" Supported channel layouts:");
367 while (p->nb_channels) {
368 char name[128];
369 av_channel_layout_describe(p, name, sizeof(name));
370 printf(" %s", name);
371 p++;
372 }
373 printf("\n");
374 }
375
376 if (c->priv_class) {
377 show_help_children(c->priv_class,
378 AV_OPT_FLAG_ENCODING_PARAM |
379 AV_OPT_FLAG_DECODING_PARAM);
380 }
381 }
382
383 static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter,
384 int encoder)
385 {
386 const AVCodec *c;
387 while ((c = av_codec_iterate(iter))) {
388 if (c->id == id &&
389 (encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c)))
390 return c;
391 }
392 return NULL;
393 }
394
395 static void show_help_codec(const char *name, int encoder)
396 {
397 const AVCodecDescriptor *desc;
398 const AVCodec *codec;
399
400 if (!name) {
401 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
402 return;
403 }
404
405 codec = encoder ? avcodec_find_encoder_by_name(name) :
406 avcodec_find_decoder_by_name(name);
407
408 if (codec)
409 print_codec(codec);
410 else if ((desc = avcodec_descriptor_get_by_name(name))) {
411 void *iter = NULL;
412 int printed = 0;
413
414 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
415 printed = 1;
416 print_codec(codec);
417 }
418
419 if (!printed) {
420 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
421 "but no %s for it are available. FFmpeg might need to be "
422 "recompiled with additional external libraries.\n",
423 name, encoder ? "encoders" : "decoders");
424 }
425 } else {
426 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
427 name);
428 }
429 }
430
431 static void show_help_demuxer(const char *name)
432 {
433 const AVInputFormat *fmt = av_find_input_format(name);
434
435 if (!fmt) {
436 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
437 return;
438 }
439
440 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
441
442 if (fmt->extensions)
443 printf(" Common extensions: %s.\n", fmt->extensions);
444
445 if (fmt->priv_class)
446 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
447 }
448
449 static void show_help_protocol(const char *name)
450 {
451 const AVClass *proto_class;
452
453 if (!name) {
454 av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
455 return;
456 }
457
458 proto_class = avio_protocol_get_class(name);
459 if (!proto_class) {
460 av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
461 return;
462 }
463
464 show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
465 }
466
467 static void show_help_muxer(const char *name)
468 {
469 const AVCodecDescriptor *desc;
470 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
471
472 if (!fmt) {
473 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
474 return;
475 }
476
477 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
478
479 if (fmt->extensions)
480 printf(" Common extensions: %s.\n", fmt->extensions);
481 if (fmt->mime_type)
482 printf(" Mime type: %s.\n", fmt->mime_type);
483 if (fmt->video_codec != AV_CODEC_ID_NONE &&
484 (desc = avcodec_descriptor_get(fmt->video_codec))) {
485 printf(" Default video codec: %s.\n", desc->name);
486 }
487 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
488 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
489 printf(" Default audio codec: %s.\n", desc->name);
490 }
491 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
492 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
493 printf(" Default subtitle codec: %s.\n", desc->name);
494 }
495
496 if (fmt->priv_class)
497 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
498 }
499
500 #if CONFIG_AVFILTER
501 static void show_help_filter(const char *name)
502 {
503 #if CONFIG_AVFILTER
504 const AVFilter *f = avfilter_get_by_name(name);
505 int i, count;
506
507 if (!name) {
508 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
509 return;
510 } else if (!f) {
511 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
512 return;
513 }
514
515 printf("Filter %s\n", f->name);
516 if (f->description)
517 printf(" %s\n", f->description);
518
519 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
520 printf(" slice threading supported\n");
521
522 printf(" Inputs:\n");
523 count = avfilter_filter_pad_count(f, 0);
524 for (i = 0; i < count; i++) {
525 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
526 av_get_media_type_string(avfilter_pad_get_type(f->inputs, i)));
527 }
528 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
529 printf(" dynamic (depending on the options)\n");
530 else if (!count)
531 printf(" none (source filter)\n");
532
533 printf(" Outputs:\n");
534 count = avfilter_filter_pad_count(f, 1);
535 for (i = 0; i < count; i++) {
536 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
537 av_get_media_type_string(avfilter_pad_get_type(f->outputs, i)));
538 }
539 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
540 printf(" dynamic (depending on the options)\n");
541 else if (!count)
542 printf(" none (sink filter)\n");
543
544 if (f->priv_class)
545 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
546 AV_OPT_FLAG_AUDIO_PARAM);
547 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
548 printf("This filter has support for timeline through the 'enable' option.\n");
549 #else
550 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
551 "can not to satisfy request\n");
552 #endif
553 }
554 #endif
555
556 static void show_help_bsf(const char *name)
557 {
558 const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
559
560 if (!name) {
561 av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
562 return;
563 } else if (!bsf) {
564 av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
565 return;
566 }
567
568 printf("Bit stream filter %s\n", bsf->name);
569 PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
570 AV_CODEC_ID_NONE, GET_CODEC_NAME);
571 if (bsf->priv_class)
572 show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
573 }
574
575 int show_help(void *optctx, const char *opt, const char *arg)
576 {
577 char *topic, *par;
578 av_log_set_callback(log_callback_help);
579
580 topic = av_strdup(arg ? arg : "");
581 if (!topic)
582 return AVERROR(ENOMEM);
583 par = strchr(topic, '=');
584 if (par)
585 *par++ = 0;
586
587 if (!*topic) {
588 show_help_default(topic, par);
589 } else if (!strcmp(topic, "decoder")) {
590 show_help_codec(par, 0);
591 } else if (!strcmp(topic, "encoder")) {
592 show_help_codec(par, 1);
593 } else if (!strcmp(topic, "demuxer")) {
594 show_help_demuxer(par);
595 } else if (!strcmp(topic, "muxer")) {
596 show_help_muxer(par);
597 } else if (!strcmp(topic, "protocol")) {
598 show_help_protocol(par);
599 #if CONFIG_AVFILTER
600 } else if (!strcmp(topic, "filter")) {
601 show_help_filter(par);
602 #endif
603 } else if (!strcmp(topic, "bsf")) {
604 show_help_bsf(par);
605 } else {
606 show_help_default(topic, par);
607 }
608
609 av_freep(&topic);
610 return 0;
611 }
612
613 static void print_codecs_for_id(enum AVCodecID id, int encoder)
614 {
615 void *iter = NULL;
616 const AVCodec *codec;
617
618 printf(" (%s:", encoder ? "encoders" : "decoders");
619
620 while ((codec = next_codec_for_id(id, &iter, encoder)))
621 printf(" %s", codec->name);
622
623 printf(")");
624 }
625
626 static int compare_codec_desc(const void *a, const void *b)
627 {
628 const AVCodecDescriptor * const *da = a;
629 const AVCodecDescriptor * const *db = b;
630
631 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
632 strcmp((*da)->name, (*db)->name);
633 }
634
635 static int get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
636 {
637 const AVCodecDescriptor *desc = NULL;
638 const AVCodecDescriptor **codecs;
639 unsigned nb_codecs = 0, i = 0;
640
641 while ((desc = avcodec_descriptor_next(desc)))
642 nb_codecs++;
643 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs))))
644 return AVERROR(ENOMEM);
645 desc = NULL;
646 while ((desc = avcodec_descriptor_next(desc)))
647 codecs[i++] = desc;
648 av_assert0(i == nb_codecs);
649 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
650 *rcodecs = codecs;
651 return nb_codecs;
652 }
653
654 static char get_media_type_char(enum AVMediaType type)
655 {
656 switch (type) {
657 case AVMEDIA_TYPE_VIDEO: return 'V';
658 case AVMEDIA_TYPE_AUDIO: return 'A';
659 case AVMEDIA_TYPE_DATA: return 'D';
660 case AVMEDIA_TYPE_SUBTITLE: return 'S';
661 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
662 default: return '?';
663 }
664 }
665
666 int show_codecs(void *optctx, const char *opt, const char *arg)
667 {
668 const AVCodecDescriptor **codecs;
669 unsigned i;
670 int nb_codecs = get_codecs_sorted(&codecs);
671
672 if (nb_codecs < 0)
673 return nb_codecs;
674
675 printf("Codecs:\n"
676 " D..... = Decoding supported\n"
677 " .E.... = Encoding supported\n"
678 " ..V... = Video codec\n"
679 " ..A... = Audio codec\n"
680 " ..S... = Subtitle codec\n"
681 " ..D... = Data codec\n"
682 " ..T... = Attachment codec\n"
683 " ...I.. = Intra frame-only codec\n"
684 " ....L. = Lossy compression\n"
685 " .....S = Lossless compression\n"
686 " -------\n");
687 for (i = 0; i < nb_codecs; i++) {
688 const AVCodecDescriptor *desc = codecs[i];
689 const AVCodec *codec;
690 void *iter = NULL;
691
692 if (strstr(desc->name, "_deprecated"))
693 continue;
694
695 printf(" %c%c%c%c%c%c",
696 avcodec_find_decoder(desc->id) ? 'D' : '.',
697 avcodec_find_encoder(desc->id) ? 'E' : '.',
698 get_media_type_char(desc->type),
699 (desc->props & AV_CODEC_PROP_INTRA_ONLY) ? 'I' : '.',
700 (desc->props & AV_CODEC_PROP_LOSSY) ? 'L' : '.',
701 (desc->props & AV_CODEC_PROP_LOSSLESS) ? 'S' : '.');
702
703 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
704
705 /* print decoders/encoders when there's more than one or their
706 * names are different from codec name */
707 while ((codec = next_codec_for_id(desc->id, &iter, 0))) {
708 if (strcmp(codec->name, desc->name)) {
709 print_codecs_for_id(desc->id, 0);
710 break;
711 }
712 }
713 iter = NULL;
714 while ((codec = next_codec_for_id(desc->id, &iter, 1))) {
715 if (strcmp(codec->name, desc->name)) {
716 print_codecs_for_id(desc->id, 1);
717 break;
718 }
719 }
720
721 printf("\n");
722 }
723 av_free(codecs);
724 return 0;
725 }
726
727 static int print_codecs(int encoder)
728 {
729 const AVCodecDescriptor **codecs;
730 int i, nb_codecs = get_codecs_sorted(&codecs);
731
732 if (nb_codecs < 0)
733 return nb_codecs;
734
735 printf("%s:\n"
736 " V..... = Video\n"
737 " A..... = Audio\n"
738 " S..... = Subtitle\n"
739 " .F.... = Frame-level multithreading\n"
740 " ..S... = Slice-level multithreading\n"
741 " ...X.. = Codec is experimental\n"
742 " ....B. = Supports draw_horiz_band\n"
743 " .....D = Supports direct rendering method 1\n"
744 " ------\n",
745 encoder ? "Encoders" : "Decoders");
746 for (i = 0; i < nb_codecs; i++) {
747 const AVCodecDescriptor *desc = codecs[i];
748 const AVCodec *codec;
749 void *iter = NULL;
750
751 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
752 printf(" %c%c%c%c%c%c",
753 get_media_type_char(desc->type),
754 (codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? 'F' : '.',
755 (codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? 'S' : '.',
756 (codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? 'X' : '.',
757 (codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND) ? 'B' : '.',
758 (codec->capabilities & AV_CODEC_CAP_DR1) ? 'D' : '.');
759
760 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
761 if (strcmp(codec->name, desc->name))
762 printf(" (codec %s)", desc->name);
763
764 printf("\n");
765 }
766 }
767 av_free(codecs);
768 return 0;
769 }
770
771 int show_decoders(void *optctx, const char *opt, const char *arg)
772 {
773 return print_codecs(0);
774 }
775
776 int show_encoders(void *optctx, const char *opt, const char *arg)
777 {
778 return print_codecs(1);
779 }
780
781 int show_bsfs(void *optctx, const char *opt, const char *arg)
782 {
783 const AVBitStreamFilter *bsf = NULL;
784 void *opaque = NULL;
785
786 printf("Bitstream filters:\n");
787 while ((bsf = av_bsf_iterate(&opaque)))
788 printf("%s\n", bsf->name);
789 printf("\n");
790 return 0;
791 }
792
793 int show_filters(void *optctx, const char *opt, const char *arg)
794 {
795 #if CONFIG_AVFILTER
796 const AVFilter *filter = NULL;
797 char descr[64], *descr_cur;
798 void *opaque = NULL;
799 int i, j;
800 const AVFilterPad *pad;
801
802 printf("Filters:\n"
803 " T.. = Timeline support\n"
804 " .S. = Slice threading\n"
805 " ..C = Command support\n"
806 " A = Audio input/output\n"
807 " V = Video input/output\n"
808 " N = Dynamic number and/or type of input/output\n"
809 " | = Source or sink filter\n");
810 while ((filter = av_filter_iterate(&opaque))) {
811 descr_cur = descr;
812 for (i = 0; i < 2; i++) {
813 unsigned nb_pads;
814 if (i) {
815 *(descr_cur++) = '-';
816 *(descr_cur++) = '>';
817 }
818 pad = i ? filter->outputs : filter->inputs;
819 nb_pads = avfilter_filter_pad_count(filter, i);
820 for (j = 0; j < nb_pads; j++) {
821 if (descr_cur >= descr + sizeof(descr) - 4)
822 break;
823 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
824 }
825 if (!j)
826 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
827 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
828 }
829 *descr_cur = 0;
830 printf(" %c%c%c %-17s %-10s %s\n",
831 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
832 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
833 filter->process_command ? 'C' : '.',
834 filter->name, descr, filter->description);
835 }
836 #else
837 printf("No filters available: libavfilter disabled\n");
838 #endif
839 return 0;
840 }
841
842 static int is_device(const AVClass *avclass)
843 {
844 if (!avclass)
845 return 0;
846 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
847 }
848
849 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
850 {
851 void *ifmt_opaque = NULL;
852 const AVInputFormat *ifmt = NULL;
853 void *ofmt_opaque = NULL;
854 const AVOutputFormat *ofmt = NULL;
855 const char *last_name;
856 int is_dev;
857 const char *is_device_placeholder = device_only ? "" : ".";
858
859 printf("%s:\n"
860 " D.%s = Demuxing supported\n"
861 " .E%s = Muxing supported\n"
862 "%s"
863 " ---\n",
864 device_only ? "Devices" : "Formats",
865 is_device_placeholder, is_device_placeholder,
866 device_only ? "": " ..d = Is a device\n");
867
868 last_name = "000";
869 for (;;) {
870 int decode = 0;
871 int encode = 0;
872 int device = 0;
873 const char *name = NULL;
874 const char *long_name = NULL;
875
876 if (muxdemuxers !=SHOW_DEMUXERS) {
877 ofmt_opaque = NULL;
878 while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
879 is_dev = is_device(ofmt->priv_class);
880 if (!is_dev && device_only)
881 continue;
882 if ((!name || strcmp(ofmt->name, name) < 0) &&
883 strcmp(ofmt->name, last_name) > 0) {
884 name = ofmt->name;
885 long_name = ofmt->long_name;
886 encode = 1;
887 device = is_dev;
888 }
889 }
890 }
891 if (muxdemuxers != SHOW_MUXERS) {
892 ifmt_opaque = NULL;
893 while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
894 is_dev = is_device(ifmt->priv_class);
895 if (!is_dev && device_only)
896 continue;
897 if ((!name || strcmp(ifmt->name, name) < 0) &&
898 strcmp(ifmt->name, last_name) > 0) {
899 name = ifmt->name;
900 long_name = ifmt->long_name;
901 encode = 0;
902 device = is_dev;
903 }
904 if (name && strcmp(ifmt->name, name) == 0) {
905 decode = 1;
906 device = is_dev;
907 }
908 }
909 }
910 if (!name)
911 break;
912 last_name = name;
913
914 printf(" %c%c%s %-15s %s\n",
915 decode ? 'D' : ' ',
916 encode ? 'E' : ' ',
917 device_only ? "" : (device ? "d" : " "),
918 name,
919 long_name ? long_name : " ");
920 }
921 return 0;
922 }
923
924 int show_formats(void *optctx, const char *opt, const char *arg)
925 {
926 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
927 }
928
929 int show_muxers(void *optctx, const char *opt, const char *arg)
930 {
931 return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
932 }
933
934 int show_demuxers(void *optctx, const char *opt, const char *arg)
935 {
936 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
937 }
938
939 int show_devices(void *optctx, const char *opt, const char *arg)
940 {
941 return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
942 }
943
944 int show_protocols(void *optctx, const char *opt, const char *arg)
945 {
946 void *opaque = NULL;
947 const char *name;
948
949 printf("Supported file protocols:\n"
950 "Input:\n");
951 while ((name = avio_enum_protocols(&opaque, 0)))
952 printf(" %s\n", name);
953 printf("Output:\n");
954 while ((name = avio_enum_protocols(&opaque, 1)))
955 printf(" %s\n", name);
956 return 0;
957 }
958
959 int show_colors(void *optctx, const char *opt, const char *arg)
960 {
961 const char *name;
962 const uint8_t *rgb;
963 int i;
964
965 printf("%-32s #RRGGBB\n", "name");
966
967 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
968 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
969
970 return 0;
971 }
972
973 1 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
974 {
975 1 const AVPixFmtDescriptor *pix_desc = NULL;
976
977 1 printf("Pixel formats:\n"
978 "I.... = Supported Input format for conversion\n"
979 ".O... = Supported Output format for conversion\n"
980 "..H.. = Hardware accelerated format\n"
981 "...P. = Paletted format\n"
982 "....B = Bitstream format\n"
983 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL BIT_DEPTHS\n"
984 "-----\n");
985
986 #if !CONFIG_SWSCALE
987 # define sws_isSupportedInput(x) 0
988 # define sws_isSupportedOutput(x) 0
989 #endif
990
991
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229 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
992 228 enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
993
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1140 printf("%c%c%c%c%c %-16s %d %3d %d",
994 228 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
995 228 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
996
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228 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
997
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228 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
998 228 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
999 228 pix_desc->name,
1000
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228 pix_desc->nb_components,
1001 av_get_bits_per_pixel(pix_desc),
1002 228 pix_desc->comp[0].depth);
1003
1004
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672 for (unsigned i = 1; i < pix_desc->nb_components; i++)
1005 444 printf("-%d", pix_desc->comp[i].depth);
1006 228 printf("\n");
1007 }
1008 1 return 0;
1009 }
1010
1011 int show_layouts(void *optctx, const char *opt, const char *arg)
1012 {
1013 const AVChannelLayout *ch_layout;
1014 void *iter = NULL;
1015 char buf[128], buf2[128];
1016 int i = 0;
1017
1018 printf("Individual channels:\n"
1019 "NAME DESCRIPTION\n");
1020 for (i = 0; i < 63; i++) {
1021 av_channel_name(buf, sizeof(buf), i);
1022 if (strstr(buf, "USR"))
1023 continue;
1024 av_channel_description(buf2, sizeof(buf2), i);
1025 printf("%-14s %s\n", buf, buf2);
1026 }
1027 printf("\nStandard channel layouts:\n"
1028 "NAME DECOMPOSITION\n");
1029 while (ch_layout = av_channel_layout_standard(&iter)) {
1030 av_channel_layout_describe(ch_layout, buf, sizeof(buf));
1031 printf("%-14s ", buf);
1032 for (i = 0; i < 63; i++) {
1033 int idx = av_channel_layout_index_from_channel(ch_layout, i);
1034 if (idx >= 0) {
1035 av_channel_name(buf2, sizeof(buf2), i);
1036 printf("%s%s", idx ? "+" : "", buf2);
1037 }
1038 }
1039 printf("\n");
1040 }
1041 return 0;
1042 }
1043
1044 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1045 {
1046 int i;
1047 char fmt_str[128];
1048 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1049 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1050 return 0;
1051 }
1052
1053 int show_dispositions(void *optctx, const char *opt, const char *arg)
1054 {
1055 for (int i = 0; i < 32; i++) {
1056 const char *str = av_disposition_to_string(1U << i);
1057 if (str)
1058 printf("%s\n", str);
1059 }
1060 return 0;
1061 }
1062
1063 6735 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
1064 {
1065 int ret;
1066 6735 unsigned flags = av_get_cpu_flags();
1067
1068
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6735 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
1069 return ret;
1070
1071 6735 av_force_cpu_flags(flags);
1072 6735 return 0;
1073 }
1074
1075 int opt_cpucount(void *optctx, const char *opt, const char *arg)
1076 {
1077 int ret;
1078 int count;
1079
1080 static const AVOption opts[] = {
1081 {"count", NULL, 0, AV_OPT_TYPE_INT, { .i64 = -1}, -1, INT_MAX},
1082 {NULL},
1083 };
1084 static const AVClass class = {
1085 .class_name = "cpucount",
1086 .item_name = av_default_item_name,
1087 .option = opts,
1088 .version = LIBAVUTIL_VERSION_INT,
1089 };
1090 const AVClass *pclass = &class;
1091
1092 ret = av_opt_eval_int(&pclass, opts, arg, &count);
1093
1094 if (!ret) {
1095 av_cpu_force_count(count);
1096 }
1097
1098 return ret;
1099 }
1100
1101 static void expand_filename_template(AVBPrint *bp, const char *template,
1102 struct tm *tm)
1103 {
1104 int c;
1105
1106 while ((c = *(template++))) {
1107 if (c == '%') {
1108 if (!(c = *(template++)))
1109 break;
1110 switch (c) {
1111 case 'p':
1112 av_bprintf(bp, "%s", program_name);
1113 break;
1114 case 't':
1115 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
1116 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1117 tm->tm_hour, tm->tm_min, tm->tm_sec);
1118 break;
1119 case '%':
1120 av_bprint_chars(bp, c, 1);
1121 break;
1122 }
1123 } else {
1124 av_bprint_chars(bp, c, 1);
1125 }
1126 }
1127 }
1128
1129 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
1130 {
1131 va_list vl2;
1132 char line[1024];
1133 static int print_prefix = 1;
1134
1135 va_copy(vl2, vl);
1136 av_log_default_callback(ptr, level, fmt, vl);
1137 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
1138 va_end(vl2);
1139 if (report_file_level >= level) {
1140 fputs(line, report_file);
1141 fflush(report_file);
1142 }
1143 }
1144
1145 int init_report(const char *env, FILE **file)
1146 {
1147 char *filename_template = NULL;
1148 char *key, *val;
1149 int ret, count = 0;
1150 int prog_loglevel, envlevel = 0;
1151 time_t now;
1152 struct tm *tm;
1153 AVBPrint filename;
1154
1155 if (report_file) /* already opened */
1156 return 0;
1157 time(&now);
1158 tm = localtime(&now);
1159
1160 while (env && *env) {
1161 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
1162 if (count)
1163 av_log(NULL, AV_LOG_ERROR,
1164 "Failed to parse FFREPORT environment variable: %s\n",
1165 av_err2str(ret));
1166 break;
1167 }
1168 if (*env)
1169 env++;
1170 count++;
1171 if (!strcmp(key, "file")) {
1172 av_free(filename_template);
1173 filename_template = val;
1174 val = NULL;
1175 } else if (!strcmp(key, "level")) {
1176 char *tail;
1177 report_file_level = strtol(val, &tail, 10);
1178 if (*tail) {
1179 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1180 av_free(key);
1181 av_free(val);
1182 av_free(filename_template);
1183 return AVERROR(EINVAL);
1184 }
1185 envlevel = 1;
1186 } else {
1187 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1188 }
1189 av_free(val);
1190 av_free(key);
1191 }
1192
1193 av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
1194 expand_filename_template(&filename,
1195 av_x_if_null(filename_template, "%p-%t.log"), tm);
1196 av_free(filename_template);
1197 if (!av_bprint_is_complete(&filename)) {
1198 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1199 return AVERROR(ENOMEM);
1200 }
1201
1202 prog_loglevel = av_log_get_level();
1203 if (!envlevel)
1204 report_file_level = FFMAX(report_file_level, prog_loglevel);
1205
1206 report_file = fopen(filename.str, "w");
1207 if (!report_file) {
1208 int ret = AVERROR(errno);
1209 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1210 filename.str, strerror(errno));
1211 return ret;
1212 }
1213 av_log_set_callback(log_callback_report);
1214 av_log(NULL, AV_LOG_INFO,
1215 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1216 "Report written to \"%s\"\n"
1217 "Log level: %d\n",
1218 program_name,
1219 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1220 tm->tm_hour, tm->tm_min, tm->tm_sec,
1221 filename.str, report_file_level);
1222 av_bprint_finalize(&filename, NULL);
1223
1224 if (file)
1225 *file = report_file;
1226
1227 return 0;
1228 }
1229
1230 int opt_report(void *optctx, const char *opt, const char *arg)
1231 {
1232 return init_report(NULL, NULL);
1233 }
1234
1235 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1236 {
1237 char *tail;
1238 size_t max;
1239
1240 max = strtol(arg, &tail, 10);
1241 if (*tail) {
1242 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1243 return AVERROR(EINVAL);
1244 }
1245 av_max_alloc(max);
1246 return 0;
1247 }
1248
1249 32 int opt_loglevel(void *optctx, const char *opt, const char *arg)
1250 {
1251 32 const struct { const char *name; int level; } log_levels[] = {
1252 { "quiet" , AV_LOG_QUIET },
1253 { "panic" , AV_LOG_PANIC },
1254 { "fatal" , AV_LOG_FATAL },
1255 { "error" , AV_LOG_ERROR },
1256 { "warning", AV_LOG_WARNING },
1257 { "info" , AV_LOG_INFO },
1258 { "verbose", AV_LOG_VERBOSE },
1259 { "debug" , AV_LOG_DEBUG },
1260 { "trace" , AV_LOG_TRACE },
1261 };
1262 const char *token;
1263 char *tail;
1264 32 int flags = av_log_get_flags();
1265 32 int level = av_log_get_level();
1266 32 int cmd, i = 0;
1267
1268
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32 av_assert0(arg);
1269
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32 while (*arg) {
1270 32 token = arg;
1271
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32 if (*token == '+' || *token == '-') {
1272 cmd = *token++;
1273 } else {
1274 32 cmd = 0;
1275 }
1276
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32 if (!i && !cmd) {
1277 32 flags = 0; /* missing relative prefix, build absolute value */
1278 }
1279
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32 if (av_strstart(token, "repeat", &arg)) {
1280 if (cmd == '-') {
1281 flags |= AV_LOG_SKIP_REPEATED;
1282 } else {
1283 flags &= ~AV_LOG_SKIP_REPEATED;
1284 }
1285
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32 } else if (av_strstart(token, "level", &arg)) {
1286 if (cmd == '-') {
1287 flags &= ~AV_LOG_PRINT_LEVEL;
1288 } else {
1289 flags |= AV_LOG_PRINT_LEVEL;
1290 }
1291 } else {
1292 32 break;
1293 }
1294 i++;
1295 }
1296
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32 if (!*arg) {
1297 goto end;
1298
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32 } else if (*arg == '+') {
1299 arg++;
1300
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32 } else if (!i) {
1301 32 flags = av_log_get_flags(); /* level value without prefix, reset flags */
1302 }
1303
1304
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308 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
1305
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280 if (!strcmp(log_levels[i].name, arg)) {
1306 4 level = log_levels[i].level;
1307 4 goto end;
1308 }
1309 }
1310
1311 28 level = strtol(arg, &tail, 10);
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28 if (*tail) {
1313 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
1314 "Possible levels are numbers or:\n", arg);
1315 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
1316 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
1317 return AVERROR(EINVAL);
1318 }
1319
1320 28 end:
1321 32 av_log_set_flags(flags);
1322 32 av_log_set_level(level);
1323 32 return 0;
1324 }
1325
1326 #if CONFIG_AVDEVICE
1327 static void print_device_list(const AVDeviceInfoList *device_list)
1328 {
1329 // print devices
1330 for (int i = 0; i < device_list->nb_devices; i++) {
1331 const AVDeviceInfo *device = device_list->devices[i];
1332 printf("%c %s [%s] (", device_list->default_device == i ? '*' : ' ',
1333 device->device_name, device->device_description);
1334 if (device->nb_media_types > 0) {
1335 for (int j = 0; j < device->nb_media_types; ++j) {
1336 const char* media_type = av_get_media_type_string(device->media_types[j]);
1337 if (j > 0)
1338 printf(", ");
1339 printf("%s", media_type ? media_type : "unknown");
1340 }
1341 } else {
1342 printf("none");
1343 }
1344 printf(")\n");
1345 }
1346 }
1347
1348 static int print_device_sources(const AVInputFormat *fmt, AVDictionary *opts)
1349 {
1350 int ret;
1351 AVDeviceInfoList *device_list = NULL;
1352
1353 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
1354 return AVERROR(EINVAL);
1355
1356 printf("Auto-detected sources for %s:\n", fmt->name);
1357 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
1358 printf("Cannot list sources: %s\n", av_err2str(ret));
1359 goto fail;
1360 }
1361
1362 print_device_list(device_list);
1363
1364 fail:
1365 avdevice_free_list_devices(&device_list);
1366 return ret;
1367 }
1368
1369 static int print_device_sinks(const AVOutputFormat *fmt, AVDictionary *opts)
1370 {
1371 int ret;
1372 AVDeviceInfoList *device_list = NULL;
1373
1374 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
1375 return AVERROR(EINVAL);
1376
1377 printf("Auto-detected sinks for %s:\n", fmt->name);
1378 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
1379 printf("Cannot list sinks: %s\n", av_err2str(ret));
1380 goto fail;
1381 }
1382
1383 print_device_list(device_list);
1384
1385 fail:
1386 avdevice_free_list_devices(&device_list);
1387 return ret;
1388 }
1389
1390 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
1391 {
1392 int ret;
1393 if (arg) {
1394 char *opts_str = NULL;
1395 av_assert0(dev && opts);
1396 *dev = av_strdup(arg);
1397 if (!*dev)
1398 return AVERROR(ENOMEM);
1399 if ((opts_str = strchr(*dev, ','))) {
1400 *(opts_str++) = '\0';
1401 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
1402 av_freep(dev);
1403 return ret;
1404 }
1405 }
1406 } else
1407 printf("\nDevice name is not provided.\n"
1408 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
1409 return 0;
1410 }
1411
1412 int show_sources(void *optctx, const char *opt, const char *arg)
1413 {
1414 const AVInputFormat *fmt = NULL;
1415 char *dev = NULL;
1416 AVDictionary *opts = NULL;
1417 int ret = 0;
1418 int error_level = av_log_get_level();
1419
1420 av_log_set_level(AV_LOG_WARNING);
1421
1422 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
1423 goto fail;
1424
1425 do {
1426 fmt = av_input_audio_device_next(fmt);
1427 if (fmt) {
1428 if (!strcmp(fmt->name, "lavfi"))
1429 continue; //it's pointless to probe lavfi
1430 if (dev && !av_match_name(dev, fmt->name))
1431 continue;
1432 print_device_sources(fmt, opts);
1433 }
1434 } while (fmt);
1435 do {
1436 fmt = av_input_video_device_next(fmt);
1437 if (fmt) {
1438 if (dev && !av_match_name(dev, fmt->name))
1439 continue;
1440 print_device_sources(fmt, opts);
1441 }
1442 } while (fmt);
1443 fail:
1444 av_dict_free(&opts);
1445 av_free(dev);
1446 av_log_set_level(error_level);
1447 return ret;
1448 }
1449
1450 int show_sinks(void *optctx, const char *opt, const char *arg)
1451 {
1452 const AVOutputFormat *fmt = NULL;
1453 char *dev = NULL;
1454 AVDictionary *opts = NULL;
1455 int ret = 0;
1456 int error_level = av_log_get_level();
1457
1458 av_log_set_level(AV_LOG_WARNING);
1459
1460 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
1461 goto fail;
1462
1463 do {
1464 fmt = av_output_audio_device_next(fmt);
1465 if (fmt) {
1466 if (dev && !av_match_name(dev, fmt->name))
1467 continue;
1468 print_device_sinks(fmt, opts);
1469 }
1470 } while (fmt);
1471 do {
1472 fmt = av_output_video_device_next(fmt);
1473 if (fmt) {
1474 if (dev && !av_match_name(dev, fmt->name))
1475 continue;
1476 print_device_sinks(fmt, opts);
1477 }
1478 } while (fmt);
1479 fail:
1480 av_dict_free(&opts);
1481 av_free(dev);
1482 av_log_set_level(error_level);
1483 return ret;
1484 }
1485 #endif /* CONFIG_AVDEVICE */
1486