FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/fftools/opt_common.c
Date: 2022-05-23 03:24:52
Exec Total Coverage
Lines: 77 743 10.4%
Branches: 83 625 13.3%

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 12632 static void print_all_libs_info(int flags, int level)
186 {
187
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12632 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
188
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12632 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
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12632 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
190
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12632 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
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12632 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
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12632 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
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12632 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
194
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12632 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
195 12632 }
196
197 6316 static void print_program_info(int flags, int level)
198 {
199
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6316 const char *indent = flags & INDENT? " " : "";
200
201 6316 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
202
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6316 if (flags & SHOW_COPYRIGHT)
203 6316 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
204 program_birth_year, CONFIG_THIS_YEAR);
205 6316 av_log(NULL, level, "\n");
206 6316 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
207
208 6316 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
209 6316 }
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 6316 void show_banner(int argc, char **argv, const OptionDef *options)
238 {
239 6316 int idx = locate_option(argc, argv, options, "version");
240
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6316 if (hide_banner || idx)
241 return;
242
243 6316 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
244 6316 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
245 6316 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_SUBFRAMES)
295 printf("subframes ");
296 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
297 printf("exp ");
298 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
299 printf("chconf ");
300 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
301 printf("paramchange ");
302 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
303 printf("variable ");
304 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
305 AV_CODEC_CAP_SLICE_THREADS |
306 AV_CODEC_CAP_OTHER_THREADS))
307 printf("threads ");
308 if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
309 printf("avoidprobe ");
310 if (c->capabilities & AV_CODEC_CAP_HARDWARE)
311 printf("hardware ");
312 if (c->capabilities & AV_CODEC_CAP_HYBRID)
313 printf("hybrid ");
314 if (!c->capabilities)
315 printf("none");
316 printf("\n");
317
318 if (c->type == AVMEDIA_TYPE_VIDEO ||
319 c->type == AVMEDIA_TYPE_AUDIO) {
320 printf(" Threading capabilities: ");
321 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
322 AV_CODEC_CAP_SLICE_THREADS |
323 AV_CODEC_CAP_OTHER_THREADS)) {
324 case AV_CODEC_CAP_FRAME_THREADS |
325 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
326 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
327 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
328 case AV_CODEC_CAP_OTHER_THREADS: printf("other"); break;
329 default: printf("none"); break;
330 }
331 printf("\n");
332 }
333
334 if (avcodec_get_hw_config(c, 0)) {
335 printf(" Supported hardware devices: ");
336 for (int i = 0;; i++) {
337 const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
338 if (!config)
339 break;
340 printf("%s ", av_hwdevice_get_type_name(config->device_type));
341 }
342 printf("\n");
343 }
344
345 if (c->supported_framerates) {
346 const AVRational *fps = c->supported_framerates;
347
348 printf(" Supported framerates:");
349 while (fps->num) {
350 printf(" %d/%d", fps->num, fps->den);
351 fps++;
352 }
353 printf("\n");
354 }
355 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
356 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
357 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
358 GET_SAMPLE_RATE_NAME);
359 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
360 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
361
362 if (c->ch_layouts) {
363 const AVChannelLayout *p = c->ch_layouts;
364
365 printf(" Supported channel layouts:");
366 while (p->nb_channels) {
367 char name[128];
368 av_channel_layout_describe(p, name, sizeof(name));
369 printf(" %s", name);
370 p++;
371 }
372 printf("\n");
373 }
374
375 if (c->priv_class) {
376 show_help_children(c->priv_class,
377 AV_OPT_FLAG_ENCODING_PARAM |
378 AV_OPT_FLAG_DECODING_PARAM);
379 }
380 }
381
382 static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter,
383 int encoder)
384 {
385 const AVCodec *c;
386 while ((c = av_codec_iterate(iter))) {
387 if (c->id == id &&
388 (encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c)))
389 return c;
390 }
391 return NULL;
392 }
393
394 static void show_help_codec(const char *name, int encoder)
395 {
396 const AVCodecDescriptor *desc;
397 const AVCodec *codec;
398
399 if (!name) {
400 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
401 return;
402 }
403
404 codec = encoder ? avcodec_find_encoder_by_name(name) :
405 avcodec_find_decoder_by_name(name);
406
407 if (codec)
408 print_codec(codec);
409 else if ((desc = avcodec_descriptor_get_by_name(name))) {
410 void *iter = NULL;
411 int printed = 0;
412
413 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
414 printed = 1;
415 print_codec(codec);
416 }
417
418 if (!printed) {
419 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
420 "but no %s for it are available. FFmpeg might need to be "
421 "recompiled with additional external libraries.\n",
422 name, encoder ? "encoders" : "decoders");
423 }
424 } else {
425 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
426 name);
427 }
428 }
429
430 static void show_help_demuxer(const char *name)
431 {
432 const AVInputFormat *fmt = av_find_input_format(name);
433
434 if (!fmt) {
435 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
436 return;
437 }
438
439 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
440
441 if (fmt->extensions)
442 printf(" Common extensions: %s.\n", fmt->extensions);
443
444 if (fmt->priv_class)
445 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
446 }
447
448 static void show_help_protocol(const char *name)
449 {
450 const AVClass *proto_class;
451
452 if (!name) {
453 av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
454 return;
455 }
456
457 proto_class = avio_protocol_get_class(name);
458 if (!proto_class) {
459 av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
460 return;
461 }
462
463 show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
464 }
465
466 static void show_help_muxer(const char *name)
467 {
468 const AVCodecDescriptor *desc;
469 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
470
471 if (!fmt) {
472 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
473 return;
474 }
475
476 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
477
478 if (fmt->extensions)
479 printf(" Common extensions: %s.\n", fmt->extensions);
480 if (fmt->mime_type)
481 printf(" Mime type: %s.\n", fmt->mime_type);
482 if (fmt->video_codec != AV_CODEC_ID_NONE &&
483 (desc = avcodec_descriptor_get(fmt->video_codec))) {
484 printf(" Default video codec: %s.\n", desc->name);
485 }
486 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
487 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
488 printf(" Default audio codec: %s.\n", desc->name);
489 }
490 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
491 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
492 printf(" Default subtitle codec: %s.\n", desc->name);
493 }
494
495 if (fmt->priv_class)
496 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
497 }
498
499 #if CONFIG_AVFILTER
500 static void show_help_filter(const char *name)
501 {
502 #if CONFIG_AVFILTER
503 const AVFilter *f = avfilter_get_by_name(name);
504 int i, count;
505
506 if (!name) {
507 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
508 return;
509 } else if (!f) {
510 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
511 return;
512 }
513
514 printf("Filter %s\n", f->name);
515 if (f->description)
516 printf(" %s\n", f->description);
517
518 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
519 printf(" slice threading supported\n");
520
521 printf(" Inputs:\n");
522 count = avfilter_filter_pad_count(f, 0);
523 for (i = 0; i < count; i++) {
524 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
525 av_get_media_type_string(avfilter_pad_get_type(f->inputs, i)));
526 }
527 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
528 printf(" dynamic (depending on the options)\n");
529 else if (!count)
530 printf(" none (source filter)\n");
531
532 printf(" Outputs:\n");
533 count = avfilter_filter_pad_count(f, 1);
534 for (i = 0; i < count; i++) {
535 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
536 av_get_media_type_string(avfilter_pad_get_type(f->outputs, i)));
537 }
538 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
539 printf(" dynamic (depending on the options)\n");
540 else if (!count)
541 printf(" none (sink filter)\n");
542
543 if (f->priv_class)
544 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
545 AV_OPT_FLAG_AUDIO_PARAM);
546 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
547 printf("This filter has support for timeline through the 'enable' option.\n");
548 #else
549 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
550 "can not to satisfy request\n");
551 #endif
552 }
553 #endif
554
555 static void show_help_bsf(const char *name)
556 {
557 const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
558
559 if (!name) {
560 av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
561 return;
562 } else if (!bsf) {
563 av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
564 return;
565 }
566
567 printf("Bit stream filter %s\n", bsf->name);
568 PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
569 AV_CODEC_ID_NONE, GET_CODEC_NAME);
570 if (bsf->priv_class)
571 show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
572 }
573
574 int show_help(void *optctx, const char *opt, const char *arg)
575 {
576 char *topic, *par;
577 av_log_set_callback(log_callback_help);
578
579 topic = av_strdup(arg ? arg : "");
580 if (!topic)
581 return AVERROR(ENOMEM);
582 par = strchr(topic, '=');
583 if (par)
584 *par++ = 0;
585
586 if (!*topic) {
587 show_help_default(topic, par);
588 } else if (!strcmp(topic, "decoder")) {
589 show_help_codec(par, 0);
590 } else if (!strcmp(topic, "encoder")) {
591 show_help_codec(par, 1);
592 } else if (!strcmp(topic, "demuxer")) {
593 show_help_demuxer(par);
594 } else if (!strcmp(topic, "muxer")) {
595 show_help_muxer(par);
596 } else if (!strcmp(topic, "protocol")) {
597 show_help_protocol(par);
598 #if CONFIG_AVFILTER
599 } else if (!strcmp(topic, "filter")) {
600 show_help_filter(par);
601 #endif
602 } else if (!strcmp(topic, "bsf")) {
603 show_help_bsf(par);
604 } else {
605 show_help_default(topic, par);
606 }
607
608 av_freep(&topic);
609 return 0;
610 }
611
612 static void print_codecs_for_id(enum AVCodecID id, int encoder)
613 {
614 void *iter = NULL;
615 const AVCodec *codec;
616
617 printf(" (%s: ", encoder ? "encoders" : "decoders");
618
619 while ((codec = next_codec_for_id(id, &iter, encoder)))
620 printf("%s ", codec->name);
621
622 printf(")");
623 }
624
625 static int compare_codec_desc(const void *a, const void *b)
626 {
627 const AVCodecDescriptor * const *da = a;
628 const AVCodecDescriptor * const *db = b;
629
630 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
631 strcmp((*da)->name, (*db)->name);
632 }
633
634 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
635 {
636 const AVCodecDescriptor *desc = NULL;
637 const AVCodecDescriptor **codecs;
638 unsigned nb_codecs = 0, i = 0;
639
640 while ((desc = avcodec_descriptor_next(desc)))
641 nb_codecs++;
642 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
643 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
644 exit_program(1);
645 }
646 desc = NULL;
647 while ((desc = avcodec_descriptor_next(desc)))
648 codecs[i++] = desc;
649 av_assert0(i == nb_codecs);
650 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
651 *rcodecs = codecs;
652 return nb_codecs;
653 }
654
655 static char get_media_type_char(enum AVMediaType type)
656 {
657 switch (type) {
658 case AVMEDIA_TYPE_VIDEO: return 'V';
659 case AVMEDIA_TYPE_AUDIO: return 'A';
660 case AVMEDIA_TYPE_DATA: return 'D';
661 case AVMEDIA_TYPE_SUBTITLE: return 'S';
662 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
663 default: return '?';
664 }
665 }
666
667 int show_codecs(void *optctx, const char *opt, const char *arg)
668 {
669 const AVCodecDescriptor **codecs;
670 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
671
672 printf("Codecs:\n"
673 " D..... = Decoding supported\n"
674 " .E.... = Encoding supported\n"
675 " ..V... = Video codec\n"
676 " ..A... = Audio codec\n"
677 " ..S... = Subtitle codec\n"
678 " ..D... = Data codec\n"
679 " ..T... = Attachment codec\n"
680 " ...I.. = Intra frame-only codec\n"
681 " ....L. = Lossy compression\n"
682 " .....S = Lossless compression\n"
683 " -------\n");
684 for (i = 0; i < nb_codecs; i++) {
685 const AVCodecDescriptor *desc = codecs[i];
686 const AVCodec *codec;
687 void *iter = NULL;
688
689 if (strstr(desc->name, "_deprecated"))
690 continue;
691
692 printf(" ");
693 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
694 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
695
696 printf("%c", get_media_type_char(desc->type));
697 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
698 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
699 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
700
701 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
702
703 /* print decoders/encoders when there's more than one or their
704 * names are different from codec name */
705 while ((codec = next_codec_for_id(desc->id, &iter, 0))) {
706 if (strcmp(codec->name, desc->name)) {
707 print_codecs_for_id(desc->id, 0);
708 break;
709 }
710 }
711 iter = NULL;
712 while ((codec = next_codec_for_id(desc->id, &iter, 1))) {
713 if (strcmp(codec->name, desc->name)) {
714 print_codecs_for_id(desc->id, 1);
715 break;
716 }
717 }
718
719 printf("\n");
720 }
721 av_free(codecs);
722 return 0;
723 }
724
725 static void print_codecs(int encoder)
726 {
727 const AVCodecDescriptor **codecs;
728 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
729
730 printf("%s:\n"
731 " V..... = Video\n"
732 " A..... = Audio\n"
733 " S..... = Subtitle\n"
734 " .F.... = Frame-level multithreading\n"
735 " ..S... = Slice-level multithreading\n"
736 " ...X.. = Codec is experimental\n"
737 " ....B. = Supports draw_horiz_band\n"
738 " .....D = Supports direct rendering method 1\n"
739 " ------\n",
740 encoder ? "Encoders" : "Decoders");
741 for (i = 0; i < nb_codecs; i++) {
742 const AVCodecDescriptor *desc = codecs[i];
743 const AVCodec *codec;
744 void *iter = NULL;
745
746 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
747 printf(" %c", get_media_type_char(desc->type));
748 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
749 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
750 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
751 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
752 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
753
754 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
755 if (strcmp(codec->name, desc->name))
756 printf(" (codec %s)", desc->name);
757
758 printf("\n");
759 }
760 }
761 av_free(codecs);
762 }
763
764 int show_decoders(void *optctx, const char *opt, const char *arg)
765 {
766 print_codecs(0);
767 return 0;
768 }
769
770 int show_encoders(void *optctx, const char *opt, const char *arg)
771 {
772 print_codecs(1);
773 return 0;
774 }
775
776 int show_bsfs(void *optctx, const char *opt, const char *arg)
777 {
778 const AVBitStreamFilter *bsf = NULL;
779 void *opaque = NULL;
780
781 printf("Bitstream filters:\n");
782 while ((bsf = av_bsf_iterate(&opaque)))
783 printf("%s\n", bsf->name);
784 printf("\n");
785 return 0;
786 }
787
788 int show_filters(void *optctx, const char *opt, const char *arg)
789 {
790 #if CONFIG_AVFILTER
791 const AVFilter *filter = NULL;
792 char descr[64], *descr_cur;
793 void *opaque = NULL;
794 int i, j;
795 const AVFilterPad *pad;
796
797 printf("Filters:\n"
798 " T.. = Timeline support\n"
799 " .S. = Slice threading\n"
800 " ..C = Command support\n"
801 " A = Audio input/output\n"
802 " V = Video input/output\n"
803 " N = Dynamic number and/or type of input/output\n"
804 " | = Source or sink filter\n");
805 while ((filter = av_filter_iterate(&opaque))) {
806 descr_cur = descr;
807 for (i = 0; i < 2; i++) {
808 unsigned nb_pads;
809 if (i) {
810 *(descr_cur++) = '-';
811 *(descr_cur++) = '>';
812 }
813 pad = i ? filter->outputs : filter->inputs;
814 nb_pads = avfilter_filter_pad_count(filter, i);
815 for (j = 0; j < nb_pads; j++) {
816 if (descr_cur >= descr + sizeof(descr) - 4)
817 break;
818 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
819 }
820 if (!j)
821 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
822 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
823 }
824 *descr_cur = 0;
825 printf(" %c%c%c %-17s %-10s %s\n",
826 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
827 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
828 filter->process_command ? 'C' : '.',
829 filter->name, descr, filter->description);
830 }
831 #else
832 printf("No filters available: libavfilter disabled\n");
833 #endif
834 return 0;
835 }
836
837 static int is_device(const AVClass *avclass)
838 {
839 if (!avclass)
840 return 0;
841 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
842 }
843
844 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
845 {
846 void *ifmt_opaque = NULL;
847 const AVInputFormat *ifmt = NULL;
848 void *ofmt_opaque = NULL;
849 const AVOutputFormat *ofmt = NULL;
850 const char *last_name;
851 int is_dev;
852
853 printf("%s\n"
854 " D. = Demuxing supported\n"
855 " .E = Muxing supported\n"
856 " --\n", device_only ? "Devices:" : "File formats:");
857 last_name = "000";
858 for (;;) {
859 int decode = 0;
860 int encode = 0;
861 const char *name = NULL;
862 const char *long_name = NULL;
863
864 if (muxdemuxers !=SHOW_DEMUXERS) {
865 ofmt_opaque = NULL;
866 while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
867 is_dev = is_device(ofmt->priv_class);
868 if (!is_dev && device_only)
869 continue;
870 if ((!name || strcmp(ofmt->name, name) < 0) &&
871 strcmp(ofmt->name, last_name) > 0) {
872 name = ofmt->name;
873 long_name = ofmt->long_name;
874 encode = 1;
875 }
876 }
877 }
878 if (muxdemuxers != SHOW_MUXERS) {
879 ifmt_opaque = NULL;
880 while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
881 is_dev = is_device(ifmt->priv_class);
882 if (!is_dev && device_only)
883 continue;
884 if ((!name || strcmp(ifmt->name, name) < 0) &&
885 strcmp(ifmt->name, last_name) > 0) {
886 name = ifmt->name;
887 long_name = ifmt->long_name;
888 encode = 0;
889 }
890 if (name && strcmp(ifmt->name, name) == 0)
891 decode = 1;
892 }
893 }
894 if (!name)
895 break;
896 last_name = name;
897
898 printf(" %c%c %-15s %s\n",
899 decode ? 'D' : ' ',
900 encode ? 'E' : ' ',
901 name,
902 long_name ? long_name:" ");
903 }
904 return 0;
905 }
906
907 int show_formats(void *optctx, const char *opt, const char *arg)
908 {
909 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
910 }
911
912 int show_muxers(void *optctx, const char *opt, const char *arg)
913 {
914 return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
915 }
916
917 int show_demuxers(void *optctx, const char *opt, const char *arg)
918 {
919 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
920 }
921
922 int show_devices(void *optctx, const char *opt, const char *arg)
923 {
924 return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
925 }
926
927 int show_protocols(void *optctx, const char *opt, const char *arg)
928 {
929 void *opaque = NULL;
930 const char *name;
931
932 printf("Supported file protocols:\n"
933 "Input:\n");
934 while ((name = avio_enum_protocols(&opaque, 0)))
935 printf(" %s\n", name);
936 printf("Output:\n");
937 while ((name = avio_enum_protocols(&opaque, 1)))
938 printf(" %s\n", name);
939 return 0;
940 }
941
942 int show_colors(void *optctx, const char *opt, const char *arg)
943 {
944 const char *name;
945 const uint8_t *rgb;
946 int i;
947
948 printf("%-32s #RRGGBB\n", "name");
949
950 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
951 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
952
953 return 0;
954 }
955
956 1 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
957 {
958 1 const AVPixFmtDescriptor *pix_desc = NULL;
959
960 1 printf("Pixel formats:\n"
961 "I.... = Supported Input format for conversion\n"
962 ".O... = Supported Output format for conversion\n"
963 "..H.. = Hardware accelerated format\n"
964 "...P. = Paletted format\n"
965 "....B = Bitstream format\n"
966 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL BIT_DEPTHS\n"
967 "-----\n");
968
969 #if !CONFIG_SWSCALE
970 # define sws_isSupportedInput(x) 0
971 # define sws_isSupportedOutput(x) 0
972 #endif
973
974
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207 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
975 206 enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
976
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1030 printf("%c%c%c%c%c %-16s %d %3d %d",
977 206 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
978 206 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
979
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206 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
980
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206 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
981 206 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
982 206 pix_desc->name,
983
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206 pix_desc->nb_components,
984 av_get_bits_per_pixel(pix_desc),
985 206 pix_desc->comp[0].depth);
986
987
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599 for (unsigned i = 1; i < pix_desc->nb_components; i++)
988 393 printf("-%d", pix_desc->comp[i].depth);
989 206 printf("\n");
990 }
991 1 return 0;
992 }
993
994 int show_layouts(void *optctx, const char *opt, const char *arg)
995 {
996 const AVChannelLayout *ch_layout;
997 void *iter = NULL;
998 char buf[128], buf2[128];
999 int i = 0;
1000
1001 printf("Individual channels:\n"
1002 "NAME DESCRIPTION\n");
1003 for (i = 0; i < 63; i++) {
1004 av_channel_name(buf, sizeof(buf), i);
1005 if (strstr(buf, "USR"))
1006 continue;
1007 av_channel_description(buf2, sizeof(buf2), i);
1008 printf("%-14s %s\n", buf, buf2);
1009 }
1010 printf("\nStandard channel layouts:\n"
1011 "NAME DECOMPOSITION\n");
1012 while (ch_layout = av_channel_layout_standard(&iter)) {
1013 av_channel_layout_describe(ch_layout, buf, sizeof(buf));
1014 printf("%-14s ", buf);
1015 for (i = 0; i < 63; i++) {
1016 int idx = av_channel_layout_index_from_channel(ch_layout, i);
1017 if (idx >= 0) {
1018 av_channel_name(buf2, sizeof(buf2), i);
1019 printf("%s%s", idx ? "+" : "", buf2);
1020 }
1021 }
1022 printf("\n");
1023 }
1024 return 0;
1025 }
1026
1027 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1028 {
1029 int i;
1030 char fmt_str[128];
1031 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1032 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1033 return 0;
1034 }
1035
1036 int show_dispositions(void *optctx, const char *opt, const char *arg)
1037 {
1038 for (int i = 0; i < 32; i++) {
1039 const char *str = av_disposition_to_string(1U << i);
1040 if (str)
1041 printf("%s\n", str);
1042 }
1043 return 0;
1044 }
1045
1046 6175 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
1047 {
1048 int ret;
1049 6175 unsigned flags = av_get_cpu_flags();
1050
1051
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6175 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
1052 return ret;
1053
1054 6175 av_force_cpu_flags(flags);
1055 6175 return 0;
1056 }
1057
1058 int opt_cpucount(void *optctx, const char *opt, const char *arg)
1059 {
1060 int ret;
1061 int count;
1062
1063 static const AVOption opts[] = {
1064 {"count", NULL, 0, AV_OPT_TYPE_INT, { .i64 = -1}, -1, INT_MAX},
1065 {NULL},
1066 };
1067 static const AVClass class = {
1068 .class_name = "cpucount",
1069 .item_name = av_default_item_name,
1070 .option = opts,
1071 .version = LIBAVUTIL_VERSION_INT,
1072 };
1073 const AVClass *pclass = &class;
1074
1075 ret = av_opt_eval_int(&pclass, opts, arg, &count);
1076
1077 if (!ret) {
1078 av_cpu_force_count(count);
1079 }
1080
1081 return ret;
1082 }
1083
1084 static void expand_filename_template(AVBPrint *bp, const char *template,
1085 struct tm *tm)
1086 {
1087 int c;
1088
1089 while ((c = *(template++))) {
1090 if (c == '%') {
1091 if (!(c = *(template++)))
1092 break;
1093 switch (c) {
1094 case 'p':
1095 av_bprintf(bp, "%s", program_name);
1096 break;
1097 case 't':
1098 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
1099 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1100 tm->tm_hour, tm->tm_min, tm->tm_sec);
1101 break;
1102 case '%':
1103 av_bprint_chars(bp, c, 1);
1104 break;
1105 }
1106 } else {
1107 av_bprint_chars(bp, c, 1);
1108 }
1109 }
1110 }
1111
1112 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
1113 {
1114 va_list vl2;
1115 char line[1024];
1116 static int print_prefix = 1;
1117
1118 va_copy(vl2, vl);
1119 av_log_default_callback(ptr, level, fmt, vl);
1120 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
1121 va_end(vl2);
1122 if (report_file_level >= level) {
1123 fputs(line, report_file);
1124 fflush(report_file);
1125 }
1126 }
1127
1128 int init_report(const char *env, FILE **file)
1129 {
1130 char *filename_template = NULL;
1131 char *key, *val;
1132 int ret, count = 0;
1133 int prog_loglevel, envlevel = 0;
1134 time_t now;
1135 struct tm *tm;
1136 AVBPrint filename;
1137
1138 if (report_file) /* already opened */
1139 return 0;
1140 time(&now);
1141 tm = localtime(&now);
1142
1143 while (env && *env) {
1144 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
1145 if (count)
1146 av_log(NULL, AV_LOG_ERROR,
1147 "Failed to parse FFREPORT environment variable: %s\n",
1148 av_err2str(ret));
1149 break;
1150 }
1151 if (*env)
1152 env++;
1153 count++;
1154 if (!strcmp(key, "file")) {
1155 av_free(filename_template);
1156 filename_template = val;
1157 val = NULL;
1158 } else if (!strcmp(key, "level")) {
1159 char *tail;
1160 report_file_level = strtol(val, &tail, 10);
1161 if (*tail) {
1162 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1163 exit_program(1);
1164 }
1165 envlevel = 1;
1166 } else {
1167 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1168 }
1169 av_free(val);
1170 av_free(key);
1171 }
1172
1173 av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
1174 expand_filename_template(&filename,
1175 av_x_if_null(filename_template, "%p-%t.log"), tm);
1176 av_free(filename_template);
1177 if (!av_bprint_is_complete(&filename)) {
1178 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1179 return AVERROR(ENOMEM);
1180 }
1181
1182 prog_loglevel = av_log_get_level();
1183 if (!envlevel)
1184 report_file_level = FFMAX(report_file_level, prog_loglevel);
1185
1186 report_file = fopen(filename.str, "w");
1187 if (!report_file) {
1188 int ret = AVERROR(errno);
1189 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1190 filename.str, strerror(errno));
1191 return ret;
1192 }
1193 av_log_set_callback(log_callback_report);
1194 av_log(NULL, AV_LOG_INFO,
1195 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1196 "Report written to \"%s\"\n"
1197 "Log level: %d\n",
1198 program_name,
1199 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1200 tm->tm_hour, tm->tm_min, tm->tm_sec,
1201 filename.str, report_file_level);
1202 av_bprint_finalize(&filename, NULL);
1203
1204 if (file)
1205 *file = report_file;
1206
1207 return 0;
1208 }
1209
1210 int opt_report(void *optctx, const char *opt, const char *arg)
1211 {
1212 return init_report(NULL, NULL);
1213 }
1214
1215 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1216 {
1217 char *tail;
1218 size_t max;
1219
1220 max = strtol(arg, &tail, 10);
1221 if (*tail) {
1222 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1223 exit_program(1);
1224 }
1225 av_max_alloc(max);
1226 return 0;
1227 }
1228
1229 28 int opt_loglevel(void *optctx, const char *opt, const char *arg)
1230 {
1231 28 const struct { const char *name; int level; } log_levels[] = {
1232 { "quiet" , AV_LOG_QUIET },
1233 { "panic" , AV_LOG_PANIC },
1234 { "fatal" , AV_LOG_FATAL },
1235 { "error" , AV_LOG_ERROR },
1236 { "warning", AV_LOG_WARNING },
1237 { "info" , AV_LOG_INFO },
1238 { "verbose", AV_LOG_VERBOSE },
1239 { "debug" , AV_LOG_DEBUG },
1240 { "trace" , AV_LOG_TRACE },
1241 };
1242 const char *token;
1243 char *tail;
1244 28 int flags = av_log_get_flags();
1245 28 int level = av_log_get_level();
1246 28 int cmd, i = 0;
1247
1248
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28 av_assert0(arg);
1249
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28 while (*arg) {
1250 28 token = arg;
1251
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28 if (*token == '+' || *token == '-') {
1252 cmd = *token++;
1253 } else {
1254 28 cmd = 0;
1255 }
1256
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28 if (!i && !cmd) {
1257 28 flags = 0; /* missing relative prefix, build absolute value */
1258 }
1259
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28 if (av_strstart(token, "repeat", &arg)) {
1260 if (cmd == '-') {
1261 flags |= AV_LOG_SKIP_REPEATED;
1262 } else {
1263 flags &= ~AV_LOG_SKIP_REPEATED;
1264 }
1265
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28 } else if (av_strstart(token, "level", &arg)) {
1266 if (cmd == '-') {
1267 flags &= ~AV_LOG_PRINT_LEVEL;
1268 } else {
1269 flags |= AV_LOG_PRINT_LEVEL;
1270 }
1271 } else {
1272 28 break;
1273 }
1274 i++;
1275 }
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28 if (!*arg) {
1277 goto end;
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28 } else if (*arg == '+') {
1279 arg++;
1280
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28 } else if (!i) {
1281 28 flags = av_log_get_flags(); /* level value without prefix, reset flags */
1282 }
1283
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268 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
1285
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244 if (!strcmp(log_levels[i].name, arg)) {
1286 4 level = log_levels[i].level;
1287 4 goto end;
1288 }
1289 }
1290
1291 24 level = strtol(arg, &tail, 10);
1292
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24 if (*tail) {
1293 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
1294 "Possible levels are numbers or:\n", arg);
1295 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
1296 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
1297 exit_program(1);
1298 }
1299
1300 24 end:
1301 28 av_log_set_flags(flags);
1302 28 av_log_set_level(level);
1303 28 return 0;
1304 }
1305
1306 #if CONFIG_AVDEVICE
1307 static void print_device_list(const AVDeviceInfoList *device_list)
1308 {
1309 // print devices
1310 for (int i = 0; i < device_list->nb_devices; i++) {
1311 const AVDeviceInfo *device = device_list->devices[i];
1312 printf("%c %s [%s] (", device_list->default_device == i ? '*' : ' ',
1313 device->device_name, device->device_description);
1314 if (device->nb_media_types > 0) {
1315 for (int j = 0; j < device->nb_media_types; ++j) {
1316 const char* media_type = av_get_media_type_string(device->media_types[j]);
1317 if (j > 0)
1318 printf(", ");
1319 printf("%s", media_type ? media_type : "unknown");
1320 }
1321 } else {
1322 printf("none");
1323 }
1324 printf(")\n");
1325 }
1326 }
1327
1328 static int print_device_sources(const AVInputFormat *fmt, AVDictionary *opts)
1329 {
1330 int ret;
1331 AVDeviceInfoList *device_list = NULL;
1332
1333 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
1334 return AVERROR(EINVAL);
1335
1336 printf("Auto-detected sources for %s:\n", fmt->name);
1337 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
1338 printf("Cannot list sources: %s\n", av_err2str(ret));
1339 goto fail;
1340 }
1341
1342 print_device_list(device_list);
1343
1344 fail:
1345 avdevice_free_list_devices(&device_list);
1346 return ret;
1347 }
1348
1349 static int print_device_sinks(const AVOutputFormat *fmt, AVDictionary *opts)
1350 {
1351 int ret;
1352 AVDeviceInfoList *device_list = NULL;
1353
1354 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
1355 return AVERROR(EINVAL);
1356
1357 printf("Auto-detected sinks for %s:\n", fmt->name);
1358 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
1359 printf("Cannot list sinks: %s\n", av_err2str(ret));
1360 goto fail;
1361 }
1362
1363 print_device_list(device_list);
1364
1365 fail:
1366 avdevice_free_list_devices(&device_list);
1367 return ret;
1368 }
1369
1370 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
1371 {
1372 int ret;
1373 if (arg) {
1374 char *opts_str = NULL;
1375 av_assert0(dev && opts);
1376 *dev = av_strdup(arg);
1377 if (!*dev)
1378 return AVERROR(ENOMEM);
1379 if ((opts_str = strchr(*dev, ','))) {
1380 *(opts_str++) = '\0';
1381 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
1382 av_freep(dev);
1383 return ret;
1384 }
1385 }
1386 } else
1387 printf("\nDevice name is not provided.\n"
1388 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
1389 return 0;
1390 }
1391
1392 int show_sources(void *optctx, const char *opt, const char *arg)
1393 {
1394 const AVInputFormat *fmt = NULL;
1395 char *dev = NULL;
1396 AVDictionary *opts = NULL;
1397 int ret = 0;
1398 int error_level = av_log_get_level();
1399
1400 av_log_set_level(AV_LOG_WARNING);
1401
1402 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
1403 goto fail;
1404
1405 do {
1406 fmt = av_input_audio_device_next(fmt);
1407 if (fmt) {
1408 if (!strcmp(fmt->name, "lavfi"))
1409 continue; //it's pointless to probe lavfi
1410 if (dev && !av_match_name(dev, fmt->name))
1411 continue;
1412 print_device_sources(fmt, opts);
1413 }
1414 } while (fmt);
1415 do {
1416 fmt = av_input_video_device_next(fmt);
1417 if (fmt) {
1418 if (dev && !av_match_name(dev, fmt->name))
1419 continue;
1420 print_device_sources(fmt, opts);
1421 }
1422 } while (fmt);
1423 fail:
1424 av_dict_free(&opts);
1425 av_free(dev);
1426 av_log_set_level(error_level);
1427 return ret;
1428 }
1429
1430 int show_sinks(void *optctx, const char *opt, const char *arg)
1431 {
1432 const AVOutputFormat *fmt = NULL;
1433 char *dev = NULL;
1434 AVDictionary *opts = NULL;
1435 int ret = 0;
1436 int error_level = av_log_get_level();
1437
1438 av_log_set_level(AV_LOG_WARNING);
1439
1440 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
1441 goto fail;
1442
1443 do {
1444 fmt = av_output_audio_device_next(fmt);
1445 if (fmt) {
1446 if (dev && !av_match_name(dev, fmt->name))
1447 continue;
1448 print_device_sinks(fmt, opts);
1449 }
1450 } while (fmt);
1451 do {
1452 fmt = av_output_video_device_next(fmt);
1453 if (fmt) {
1454 if (dev && !av_match_name(dev, fmt->name))
1455 continue;
1456 print_device_sinks(fmt, opts);
1457 }
1458 } while (fmt);
1459 fail:
1460 av_dict_free(&opts);
1461 av_free(dev);
1462 av_log_set_level(error_level);
1463 return ret;
1464 }
1465 #endif /* CONFIG_AVDEVICE */
1466