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opt_common.c
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opt_common.c
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/*
* Option handlers shared between the tools.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include <stdio.h>
#include "cmdutils.h"
#include "opt_common.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/channel_layout.h"
#include "libavutil/cpu.h"
#include "libavutil/dict.h"
#include "libavutil/error.h"
#include "libavutil/ffversion.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/version.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/bsf.h"
#include "libavcodec/codec.h"
#include "libavcodec/codec_desc.h"
#include "libavcodec/version.h"
#include "libavformat/avformat.h"
#include "libavformat/version.h"
#include "libavdevice/avdevice.h"
#include "libavdevice/version.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/version.h"
#include "libswscale/swscale.h"
#include "libswscale/version.h"
#include "libswresample/swresample.h"
#include "libswresample/version.h"
#include "libpostproc/postprocess.h"
#include "libpostproc/version.h"
enum show_muxdemuxers {
SHOW_DEFAULT,
SHOW_DEMUXERS,
SHOW_MUXERS,
};
static FILE *report_file;
static int report_file_level = AV_LOG_DEBUG;
int show_license(void *optctx, const char *opt, const char *arg)
{
#if CONFIG_NONFREE
printf(
"This version of %s has nonfree parts compiled in.\n"
"Therefore it is not legally redistributable.\n",
program_name );
#elif CONFIG_GPLV3
printf(
"%s is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation; either version 3 of the License, or\n"
"(at your option) any later version.\n"
"\n"
"%s is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License\n"
"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
program_name, program_name, program_name );
#elif CONFIG_GPL
printf(
"%s is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation; either version 2 of the License, or\n"
"(at your option) any later version.\n"
"\n"
"%s is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License\n"
"along with %s; if not, write to the Free Software\n"
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
program_name, program_name, program_name );
#elif CONFIG_LGPLV3
printf(
"%s is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU Lesser General Public License as published by\n"
"the Free Software Foundation; either version 3 of the License, or\n"
"(at your option) any later version.\n"
"\n"
"%s is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU Lesser General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU Lesser General Public License\n"
"along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
program_name, program_name, program_name );
#else
printf(
"%s is free software; you can redistribute it and/or\n"
"modify it under the terms of the GNU Lesser General Public\n"
"License as published by the Free Software Foundation; either\n"
"version 2.1 of the License, or (at your option) any later version.\n"
"\n"
"%s is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
"Lesser General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU Lesser General Public\n"
"License along with %s; if not, write to the Free Software\n"
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
program_name, program_name, program_name );
#endif
return 0;
}
static int warned_cfg = 0;
#define INDENT 1
#define SHOW_VERSION 2
#define SHOW_CONFIG 4
#define SHOW_COPYRIGHT 8
#define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
if (CONFIG_##LIBNAME) { \
const char *indent = flags & INDENT? " " : ""; \
if (flags & SHOW_VERSION) { \
unsigned int version = libname##_version(); \
av_log(NULL, level, \
"%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
indent, #libname, \
LIB##LIBNAME##_VERSION_MAJOR, \
LIB##LIBNAME##_VERSION_MINOR, \
LIB##LIBNAME##_VERSION_MICRO, \
AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
AV_VERSION_MICRO(version)); \
} \
if (flags & SHOW_CONFIG) { \
const char *cfg = libname##_configuration(); \
if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
if (!warned_cfg) { \
av_log(NULL, level, \
"%sWARNING: library configuration mismatch\n", \
indent); \
warned_cfg = 1; \
} \
av_log(NULL, level, "%s%-11s configuration: %s\n", \
indent, #libname, cfg); \
} \
} \
} \
static void print_all_libs_info(int flags, int level)
{
PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
}
static void print_program_info(int flags, int level)
{
const char *indent = flags & INDENT? " " : "";
av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
if (flags & SHOW_COPYRIGHT)
av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
program_birth_year, CONFIG_THIS_YEAR);
av_log(NULL, level, "\n");
av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
}
static void print_buildconf(int flags, int level)
{
const char *indent = flags & INDENT ? " " : "";
char str[] = { FFMPEG_CONFIGURATION };
char *conflist, *remove_tilde, *splitconf;
// Change all the ' --' strings to '~--' so that
// they can be identified as tokens.
while ((conflist = strstr(str, " --")) != NULL) {
conflist[0] = '~';
}
// Compensate for the weirdness this would cause
// when passing 'pkg-config --static'.
while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
remove_tilde[sizeof("pkg-config~") - 2] = ' ';
}
splitconf = strtok(str, "~");
av_log(NULL, level, "\n%sconfiguration:\n", indent);
while (splitconf != NULL) {
av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
splitconf = strtok(NULL, "~");
}
}
void show_banner(int argc, char **argv, const OptionDef *options)
{
int idx = locate_option(argc, argv, options, "version");
if (hide_banner || idx)
return;
print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
}
int show_version(void *optctx, const char *opt, const char *arg)
{
av_log_set_callback(log_callback_help);
print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
return 0;
}
int show_buildconf(void *optctx, const char *opt, const char *arg)
{
av_log_set_callback(log_callback_help);
print_buildconf (INDENT|0, AV_LOG_INFO);
return 0;
}
#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
if (codec->field) { \
const type *p = codec->field; \
\
printf(" Supported " list_name ":"); \
while (*p != term) { \
get_name(*p); \
printf(" %s", name); \
p++; \
} \
printf("\n"); \
} \
static void print_codec(const AVCodec *c)
{
int encoder = av_codec_is_encoder(c);
printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
c->long_name ? c->long_name : "");
printf(" General capabilities: ");
if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
printf("horizband ");
if (c->capabilities & AV_CODEC_CAP_DR1)
printf("dr1 ");
if (c->capabilities & AV_CODEC_CAP_DELAY)
printf("delay ");
if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
printf("small ");
if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
printf("exp ");
if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
printf("chconf ");
if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
printf("paramchange ");
if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
printf("variable ");
if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
AV_CODEC_CAP_SLICE_THREADS |
AV_CODEC_CAP_OTHER_THREADS))
printf("threads ");
if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
printf("avoidprobe ");
if (c->capabilities & AV_CODEC_CAP_HARDWARE)
printf("hardware ");
if (c->capabilities & AV_CODEC_CAP_HYBRID)
printf("hybrid ");
if (!c->capabilities)
printf("none");
printf("\n");
if (c->type == AVMEDIA_TYPE_VIDEO ||
c->type == AVMEDIA_TYPE_AUDIO) {
printf(" Threading capabilities: ");
switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
AV_CODEC_CAP_SLICE_THREADS |
AV_CODEC_CAP_OTHER_THREADS)) {
case AV_CODEC_CAP_FRAME_THREADS |
AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
case AV_CODEC_CAP_OTHER_THREADS: printf("other"); break;
default: printf("none"); break;
}
printf("\n");
}
if (avcodec_get_hw_config(c, 0)) {
printf(" Supported hardware devices: ");
for (int i = 0;; i++) {
const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
const char *name;
if (!config)
break;
name = av_hwdevice_get_type_name(config->device_type);
if (name)
printf("%s ", name);
}
printf("\n");
}
if (c->supported_framerates) {
const AVRational *fps = c->supported_framerates;
printf(" Supported framerates:");
while (fps->num) {
printf(" %d/%d", fps->num, fps->den);
fps++;
}
printf("\n");
}
PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
GET_SAMPLE_RATE_NAME);
PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
if (c->ch_layouts) {
const AVChannelLayout *p = c->ch_layouts;
printf(" Supported channel layouts:");
while (p->nb_channels) {
char name[128];
av_channel_layout_describe(p, name, sizeof(name));
printf(" %s", name);
p++;
}
printf("\n");
}
if (c->priv_class) {
show_help_children(c->priv_class,
AV_OPT_FLAG_ENCODING_PARAM |
AV_OPT_FLAG_DECODING_PARAM);
}
}
static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter,
int encoder)
{
const AVCodec *c;
while ((c = av_codec_iterate(iter))) {
if (c->id == id &&
(encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c)))
return c;
}
return NULL;
}
static void show_help_codec(const char *name, int encoder)
{
const AVCodecDescriptor *desc;
const AVCodec *codec;
if (!name) {
av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
return;
}
codec = encoder ? avcodec_find_encoder_by_name(name) :
avcodec_find_decoder_by_name(name);
if (codec)
print_codec(codec);
else if ((desc = avcodec_descriptor_get_by_name(name))) {
void *iter = NULL;
int printed = 0;
while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
printed = 1;
print_codec(codec);
}
if (!printed) {
av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
"but no %s for it are available. FFmpeg might need to be "
"recompiled with additional external libraries.\n",
name, encoder ? "encoders" : "decoders");
}
} else {
av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
name);
}
}
static void show_help_demuxer(const char *name)
{
const AVInputFormat *fmt = av_find_input_format(name);
if (!fmt) {
av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
return;
}
printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
if (fmt->extensions)
printf(" Common extensions: %s.\n", fmt->extensions);
if (fmt->priv_class)
show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
}
static void show_help_protocol(const char *name)
{
const AVClass *proto_class;
if (!name) {
av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
return;
}
proto_class = avio_protocol_get_class(name);
if (!proto_class) {
av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
return;
}
show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
}
static void show_help_muxer(const char *name)
{
const AVCodecDescriptor *desc;
const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
if (!fmt) {
av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
return;
}
printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
if (fmt->extensions)
printf(" Common extensions: %s.\n", fmt->extensions);
if (fmt->mime_type)
printf(" Mime type: %s.\n", fmt->mime_type);
if (fmt->video_codec != AV_CODEC_ID_NONE &&
(desc = avcodec_descriptor_get(fmt->video_codec))) {
printf(" Default video codec: %s.\n", desc->name);
}
if (fmt->audio_codec != AV_CODEC_ID_NONE &&
(desc = avcodec_descriptor_get(fmt->audio_codec))) {
printf(" Default audio codec: %s.\n", desc->name);
}
if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
(desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
printf(" Default subtitle codec: %s.\n", desc->name);
}
if (fmt->priv_class)
show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
}
#if CONFIG_AVFILTER
static void show_help_filter(const char *name)
{
#if CONFIG_AVFILTER
const AVFilter *f = avfilter_get_by_name(name);
int i, count;
if (!name) {
av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
return;
} else if (!f) {
av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
return;
}
printf("Filter %s\n", f->name);
if (f->description)
printf(" %s\n", f->description);
if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
printf(" slice threading supported\n");
printf(" Inputs:\n");
count = avfilter_filter_pad_count(f, 0);
for (i = 0; i < count; i++) {
printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
av_get_media_type_string(avfilter_pad_get_type(f->inputs, i)));
}
if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
printf(" dynamic (depending on the options)\n");
else if (!count)
printf(" none (source filter)\n");
printf(" Outputs:\n");
count = avfilter_filter_pad_count(f, 1);
for (i = 0; i < count; i++) {
printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
av_get_media_type_string(avfilter_pad_get_type(f->outputs, i)));
}
if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
printf(" dynamic (depending on the options)\n");
else if (!count)
printf(" none (sink filter)\n");
if (f->priv_class)
show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
AV_OPT_FLAG_AUDIO_PARAM);
if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
printf("This filter has support for timeline through the 'enable' option.\n");
#else
av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
"can not to satisfy request\n");
#endif
}
#endif
static void show_help_bsf(const char *name)
{
const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
if (!name) {
av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
return;
} else if (!bsf) {
av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
return;
}
printf("Bit stream filter %s\n", bsf->name);
PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
AV_CODEC_ID_NONE, GET_CODEC_NAME);
if (bsf->priv_class)
show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
}
int show_help(void *optctx, const char *opt, const char *arg)
{
char *topic, *par;
av_log_set_callback(log_callback_help);
topic = av_strdup(arg ? arg : "");
if (!topic)
return AVERROR(ENOMEM);
par = strchr(topic, '=');
if (par)
*par++ = 0;
if (!*topic) {
show_help_default(topic, par);
} else if (!strcmp(topic, "decoder")) {
show_help_codec(par, 0);
} else if (!strcmp(topic, "encoder")) {
show_help_codec(par, 1);
} else if (!strcmp(topic, "demuxer")) {
show_help_demuxer(par);
} else if (!strcmp(topic, "muxer")) {
show_help_muxer(par);
} else if (!strcmp(topic, "protocol")) {
show_help_protocol(par);
#if CONFIG_AVFILTER
} else if (!strcmp(topic, "filter")) {
show_help_filter(par);
#endif
} else if (!strcmp(topic, "bsf")) {
show_help_bsf(par);
} else {
show_help_default(topic, par);
}
av_freep(&topic);
return 0;
}
static void print_codecs_for_id(enum AVCodecID id, int encoder)
{
void *iter = NULL;
const AVCodec *codec;
printf(" (%s:", encoder ? "encoders" : "decoders");
while ((codec = next_codec_for_id(id, &iter, encoder)))
printf(" %s", codec->name);
printf(")");
}
static int compare_codec_desc(const void *a, const void *b)
{
const AVCodecDescriptor * const *da = a;
const AVCodecDescriptor * const *db = b;
return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
strcmp((*da)->name, (*db)->name);
}
static int get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
{
const AVCodecDescriptor *desc = NULL;
const AVCodecDescriptor **codecs;
unsigned nb_codecs = 0, i = 0;
while ((desc = avcodec_descriptor_next(desc)))
nb_codecs++;
if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs))))
return AVERROR(ENOMEM);
desc = NULL;
while ((desc = avcodec_descriptor_next(desc)))
codecs[i++] = desc;
av_assert0(i == nb_codecs);
qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
*rcodecs = codecs;
return nb_codecs;
}
static char get_media_type_char(enum AVMediaType type)
{
switch (type) {
case AVMEDIA_TYPE_VIDEO: return 'V';
case AVMEDIA_TYPE_AUDIO: return 'A';
case AVMEDIA_TYPE_DATA: return 'D';
case AVMEDIA_TYPE_SUBTITLE: return 'S';
case AVMEDIA_TYPE_ATTACHMENT:return 'T';
default: return '?';
}
}
int show_codecs(void *optctx, const char *opt, const char *arg)
{
const AVCodecDescriptor **codecs;
unsigned i;
int nb_codecs = get_codecs_sorted(&codecs);
if (nb_codecs < 0)
return nb_codecs;
printf("Codecs:\n"
" D..... = Decoding supported\n"
" .E.... = Encoding supported\n"
" ..V... = Video codec\n"
" ..A... = Audio codec\n"
" ..S... = Subtitle codec\n"
" ..D... = Data codec\n"
" ..T... = Attachment codec\n"
" ...I.. = Intra frame-only codec\n"
" ....L. = Lossy compression\n"
" .....S = Lossless compression\n"
" -------\n");
for (i = 0; i < nb_codecs; i++) {
const AVCodecDescriptor *desc = codecs[i];
const AVCodec *codec;
void *iter = NULL;
if (strstr(desc->name, "_deprecated"))
continue;
printf(" %c%c%c%c%c%c",
avcodec_find_decoder(desc->id) ? 'D' : '.',
avcodec_find_encoder(desc->id) ? 'E' : '.',
get_media_type_char(desc->type),
(desc->props & AV_CODEC_PROP_INTRA_ONLY) ? 'I' : '.',
(desc->props & AV_CODEC_PROP_LOSSY) ? 'L' : '.',
(desc->props & AV_CODEC_PROP_LOSSLESS) ? 'S' : '.');
printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
/* print decoders/encoders when there's more than one or their
* names are different from codec name */
while ((codec = next_codec_for_id(desc->id, &iter, 0))) {
if (strcmp(codec->name, desc->name)) {
print_codecs_for_id(desc->id, 0);
break;
}
}
iter = NULL;
while ((codec = next_codec_for_id(desc->id, &iter, 1))) {
if (strcmp(codec->name, desc->name)) {
print_codecs_for_id(desc->id, 1);
break;
}
}
printf("\n");
}
av_free(codecs);
return 0;
}
static void print_codecs(int encoder)
{
const AVCodecDescriptor **codecs;
unsigned i, nb_codecs = get_codecs_sorted(&codecs);
printf("%s:\n"
" V..... = Video\n"
" A..... = Audio\n"
" S..... = Subtitle\n"
" .F.... = Frame-level multithreading\n"
" ..S... = Slice-level multithreading\n"
" ...X.. = Codec is experimental\n"
" ....B. = Supports draw_horiz_band\n"
" .....D = Supports direct rendering method 1\n"
" ------\n",
encoder ? "Encoders" : "Decoders");
for (i = 0; i < nb_codecs; i++) {
const AVCodecDescriptor *desc = codecs[i];
const AVCodec *codec;
void *iter = NULL;
while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
printf(" %c%c%c%c%c%c",
get_media_type_char(desc->type),
(codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? 'F' : '.',
(codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? 'S' : '.',
(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? 'X' : '.',
(codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND) ? 'B' : '.',
(codec->capabilities & AV_CODEC_CAP_DR1) ? 'D' : '.');
printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
if (strcmp(codec->name, desc->name))
printf(" (codec %s)", desc->name);
printf("\n");
}
}
av_free(codecs);
}
int show_decoders(void *optctx, const char *opt, const char *arg)
{
print_codecs(0);
return 0;
}
int show_encoders(void *optctx, const char *opt, const char *arg)
{
print_codecs(1);
return 0;
}
int show_bsfs(void *optctx, const char *opt, const char *arg)
{
const AVBitStreamFilter *bsf = NULL;
void *opaque = NULL;
printf("Bitstream filters:\n");
while ((bsf = av_bsf_iterate(&opaque)))
printf("%s\n", bsf->name);
printf("\n");
return 0;
}
int show_filters(void *optctx, const char *opt, const char *arg)
{
#if CONFIG_AVFILTER
const AVFilter *filter = NULL;
char descr[64], *descr_cur;
void *opaque = NULL;
int i, j;
const AVFilterPad *pad;
printf("Filters:\n"
" T.. = Timeline support\n"
" .S. = Slice threading\n"
" ..C = Command support\n"
" A = Audio input/output\n"
" V = Video input/output\n"
" N = Dynamic number and/or type of input/output\n"
" | = Source or sink filter\n");
while ((filter = av_filter_iterate(&opaque))) {
descr_cur = descr;
for (i = 0; i < 2; i++) {
unsigned nb_pads;
if (i) {
*(descr_cur++) = '-';
*(descr_cur++) = '>';
}
pad = i ? filter->outputs : filter->inputs;
nb_pads = avfilter_filter_pad_count(filter, i);
for (j = 0; j < nb_pads; j++) {
if (descr_cur >= descr + sizeof(descr) - 4)
break;
*(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
}
if (!j)
*(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
}
*descr_cur = 0;
printf(" %c%c%c %-17s %-10s %s\n",
filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
filter->process_command ? 'C' : '.',
filter->name, descr, filter->description);
}
#else
printf("No filters available: libavfilter disabled\n");
#endif
return 0;
}
static int is_device(const AVClass *avclass)
{
if (!avclass)
return 0;
return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
}
static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
{
void *ifmt_opaque = NULL;
const AVInputFormat *ifmt = NULL;
void *ofmt_opaque = NULL;
const AVOutputFormat *ofmt = NULL;
const char *last_name;
int is_dev;
printf("%s\n"
" D. = Demuxing supported\n"
" .E = Muxing supported\n"
" --\n", device_only ? "Devices:" : "File formats:");
last_name = "000";
for (;;) {
int decode = 0;
int encode = 0;
const char *name = NULL;
const char *long_name = NULL;
if (muxdemuxers !=SHOW_DEMUXERS) {
ofmt_opaque = NULL;
while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
is_dev = is_device(ofmt->priv_class);
if (!is_dev && device_only)
continue;
if ((!name || strcmp(ofmt->name, name) < 0) &&
strcmp(ofmt->name, last_name) > 0) {
name = ofmt->name;
long_name = ofmt->long_name;
encode = 1;
}
}
}
if (muxdemuxers != SHOW_MUXERS) {
ifmt_opaque = NULL;
while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
is_dev = is_device(ifmt->priv_class);
if (!is_dev && device_only)
continue;
if ((!name || strcmp(ifmt->name, name) < 0) &&
strcmp(ifmt->name, last_name) > 0) {
name = ifmt->name;
long_name = ifmt->long_name;
encode = 0;
}
if (name && strcmp(ifmt->name, name) == 0)
decode = 1;
}
}
if (!name)
break;
last_name = name;
printf(" %c%c %-15s %s\n",
decode ? 'D' : ' ',
encode ? 'E' : ' ',
name,
long_name ? long_name:" ");
}
return 0;
}
int show_formats(void *optctx, const char *opt, const char *arg)
{
return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
}
int show_muxers(void *optctx, const char *opt, const char *arg)
{
return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
}
int show_demuxers(void *optctx, const char *opt, const char *arg)
{
return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
}
int show_devices(void *optctx, const char *opt, const char *arg)
{
return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
}
int show_protocols(void *optctx, const char *opt, const char *arg)
{
void *opaque = NULL;
const char *name;
printf("Supported file protocols:\n"
"Input:\n");
while ((name = avio_enum_protocols(&opaque, 0)))
printf(" %s\n", name);
printf("Output:\n");
while ((name = avio_enum_protocols(&opaque, 1)))
printf(" %s\n", name);
return 0;
}
int show_colors(void *optctx, const char *opt, const char *arg)
{
const char *name;
const uint8_t *rgb;
int i;
printf("%-32s #RRGGBB\n", "name");
for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
return 0;
}
int show_pix_fmts(void *optctx, const char *opt, const char *arg)
{
const AVPixFmtDescriptor *pix_desc = NULL;
printf("Pixel formats:\n"
"I.... = Supported Input format for conversion\n"
".O... = Supported Output format for conversion\n"
"..H.. = Hardware accelerated format\n"
"...P. = Paletted format\n"
"....B = Bitstream format\n"
"FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL BIT_DEPTHS\n"
"-----\n");
#if !CONFIG_SWSCALE
# define sws_isSupportedInput(x) 0
# define sws_isSupportedOutput(x) 0
#endif
while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
printf("%c%c%c%c%c %-16s %d %3d %d",
sws_isSupportedInput (pix_fmt) ? 'I' : '.',
sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
pix_desc->name,
pix_desc->nb_components,
av_get_bits_per_pixel(pix_desc),
pix_desc->comp[0].depth);
for (unsigned i = 1; i < pix_desc->nb_components; i++)
printf("-%d", pix_desc->comp[i].depth);
printf("\n");
}
return 0;
}
int show_layouts(void *optctx, const char *opt, const char *arg)
{
const AVChannelLayout *ch_layout;
void *iter = NULL;