2377 lines
75 KiB
C
Executable file
2377 lines
75 KiB
C
Executable file
/*
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* Various utilities for command line tools
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* Copyright (c) 2000-2003 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <math.h>
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/* Include only the enabled headers since some compilers (namely, Sun
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Studio) will not omit unused inline functions and create undefined
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references to libraries that are not being built. */
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#include "config.h"
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#include "compat/va_copy.h"
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#include "libavformat/avformat.h"
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#include "libavfilter/avfilter.h"
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#include "libavdevice/avdevice.h"
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#include "libavresample/avresample.h"
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#include "libswscale/swscale.h"
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#include "libswresample/swresample.h"
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#include "libpostproc/postprocess.h"
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/bprint.h"
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#include "libavutil/display.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/libm.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/eval.h"
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#include "libavutil/dict.h"
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#include "libavutil/opt.h"
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#include "libavutil/cpu.h"
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#include "libavutil/ffversion.h"
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#include "libavutil/version.h"
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#include "cmdutils.h"
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#if HAVE_SYS_RESOURCE_H
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#include <sys/time.h>
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#include <sys/resource.h>
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#endif
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#ifdef _WIN32
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#include <windows.h>
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#endif
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static int init_report(const char *env);
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AVDictionary *sws_dict;
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AVDictionary *swr_opts;
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AVDictionary *format_opts, *codec_opts, *resample_opts;
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static FILE *report_file;
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static int report_file_level = AV_LOG_DEBUG;
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int hide_banner = 0;
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enum show_muxdemuxers {
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SHOW_DEFAULT,
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SHOW_DEMUXERS,
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SHOW_MUXERS,
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};
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void init_opts(void)
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{
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av_dict_set(&sws_dict, "flags", "bicubic", 0);
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}
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void uninit_opts(void)
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{
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av_dict_free(&swr_opts);
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av_dict_free(&sws_dict);
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av_dict_free(&format_opts);
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av_dict_free(&codec_opts);
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av_dict_free(&resample_opts);
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}
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void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
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{
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vfprintf(stdout, fmt, vl);
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}
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static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
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{
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va_list vl2;
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char line[1024];
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static int print_prefix = 1;
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va_copy(vl2, vl);
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av_log_default_callback(ptr, level, fmt, vl);
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av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
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va_end(vl2);
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if (report_file_level >= level) {
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fputs(line, report_file);
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fflush(report_file);
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}
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}
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void init_dynload(void)
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{
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#if HAVE_SETDLLDIRECTORY && defined(_WIN32)
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/* Calling SetDllDirectory with the empty string (but not NULL) removes the
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* current working directory from the DLL search path as a security pre-caution. */
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SetDllDirectory("");
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#endif
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}
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static void (*program_exit)(int ret);
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void register_exit(void (*cb)(int ret))
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{
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program_exit = cb;
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}
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void exit_program(int ret)
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{
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if (program_exit)
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program_exit(ret);
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exit(ret);
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}
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double parse_number_or_die(const char *context, const char *numstr, int type,
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double min, double max)
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{
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char *tail;
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const char *error;
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double d = av_strtod(numstr, &tail);
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if (*tail)
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error = "Expected number for %s but found: %s\n";
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else if (d < min || d > max)
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error = "The value for %s was %s which is not within %f - %f\n";
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else if (type == OPT_INT64 && (int64_t)d != d)
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error = "Expected int64 for %s but found %s\n";
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else if (type == OPT_INT && (int)d != d)
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error = "Expected int for %s but found %s\n";
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else
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return d;
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av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
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exit_program(1);
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return 0;
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}
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int64_t parse_time_or_die(const char *context, const char *timestr,
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int is_duration)
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{
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int64_t us;
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if (av_parse_time(&us, timestr, is_duration) < 0) {
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av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
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is_duration ? "duration" : "date", context, timestr);
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exit_program(1);
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}
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return us;
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}
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void show_help_options(const OptionDef *options, const char *msg, int req_flags,
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int rej_flags, int alt_flags)
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{
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const OptionDef *po;
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int first;
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first = 1;
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for (po = options; po->name; po++) {
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char buf[128];
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if (((po->flags & req_flags) != req_flags) ||
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(alt_flags && !(po->flags & alt_flags)) ||
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(po->flags & rej_flags))
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continue;
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if (first) {
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printf("%s\n", msg);
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first = 0;
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}
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av_strlcpy(buf, po->name, sizeof(buf));
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if (po->argname) {
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av_strlcat(buf, " ", sizeof(buf));
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av_strlcat(buf, po->argname, sizeof(buf));
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}
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printf("-%-17s %s\n", buf, po->help);
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}
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printf("\n");
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}
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void show_help_children(const AVClass *class, int flags)
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{
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void *iter = NULL;
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const AVClass *child;
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if (class->option) {
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av_opt_show2(&class, NULL, flags, 0);
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printf("\n");
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}
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while (child = av_opt_child_class_iterate(class, &iter))
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show_help_children(child, flags);
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}
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static const OptionDef *find_option(const OptionDef *po, const char *name)
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{
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const char *p = strchr(name, ':');
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int len = p ? p - name : strlen(name);
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while (po->name) {
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if (!strncmp(name, po->name, len) && strlen(po->name) == len)
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break;
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po++;
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}
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return po;
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}
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/* _WIN32 means using the windows libc - cygwin doesn't define that
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* by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
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* it doesn't provide the actual command line via GetCommandLineW(). */
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#if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
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#include <shellapi.h>
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/* Will be leaked on exit */
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static char** win32_argv_utf8 = NULL;
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static int win32_argc = 0;
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/**
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* Prepare command line arguments for executable.
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* For Windows - perform wide-char to UTF-8 conversion.
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* Input arguments should be main() function arguments.
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* @param argc_ptr Arguments number (including executable)
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* @param argv_ptr Arguments list.
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*/
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static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
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{
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char *argstr_flat;
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wchar_t **argv_w;
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int i, buffsize = 0, offset = 0;
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if (win32_argv_utf8) {
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*argc_ptr = win32_argc;
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*argv_ptr = win32_argv_utf8;
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return;
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}
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win32_argc = 0;
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argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
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if (win32_argc <= 0 || !argv_w)
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return;
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/* determine the UTF-8 buffer size (including NULL-termination symbols) */
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for (i = 0; i < win32_argc; i++)
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buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
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NULL, 0, NULL, NULL);
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win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
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argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
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if (!win32_argv_utf8) {
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LocalFree(argv_w);
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return;
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}
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for (i = 0; i < win32_argc; i++) {
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win32_argv_utf8[i] = &argstr_flat[offset];
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offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
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&argstr_flat[offset],
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buffsize - offset, NULL, NULL);
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}
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win32_argv_utf8[i] = NULL;
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LocalFree(argv_w);
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*argc_ptr = win32_argc;
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*argv_ptr = win32_argv_utf8;
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}
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#else
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static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
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{
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/* nothing to do */
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}
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#endif /* HAVE_COMMANDLINETOARGVW */
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static int write_option(void *optctx, const OptionDef *po, const char *opt,
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const char *arg)
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{
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/* new-style options contain an offset into optctx, old-style address of
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* a global var*/
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void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
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(uint8_t *)optctx + po->u.off : po->u.dst_ptr;
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int *dstcount;
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if (po->flags & OPT_SPEC) {
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SpecifierOpt **so = dst;
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char *p = strchr(opt, ':');
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char *str;
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dstcount = (int *)(so + 1);
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*so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
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str = av_strdup(p ? p + 1 : "");
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if (!str)
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return AVERROR(ENOMEM);
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(*so)[*dstcount - 1].specifier = str;
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dst = &(*so)[*dstcount - 1].u;
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}
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if (po->flags & OPT_STRING) {
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char *str;
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str = av_strdup(arg);
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av_freep(dst);
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if (!str)
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return AVERROR(ENOMEM);
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*(char **)dst = str;
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} else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
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*(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
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} else if (po->flags & OPT_INT64) {
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*(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
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} else if (po->flags & OPT_TIME) {
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*(int64_t *)dst = parse_time_or_die(opt, arg, 1);
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} else if (po->flags & OPT_FLOAT) {
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*(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
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} else if (po->flags & OPT_DOUBLE) {
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*(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
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} else if (po->u.func_arg) {
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int ret = po->u.func_arg(optctx, opt, arg);
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if (ret < 0) {
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av_log(NULL, AV_LOG_ERROR,
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"Failed to set value '%s' for option '%s': %s\n",
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arg, opt, av_err2str(ret));
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return ret;
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}
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}
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if (po->flags & OPT_EXIT)
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exit_program(0);
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return 0;
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}
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int parse_option(void *optctx, const char *opt, const char *arg,
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const OptionDef *options)
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{
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const OptionDef *po;
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int ret;
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po = find_option(options, opt);
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if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
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/* handle 'no' bool option */
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po = find_option(options, opt + 2);
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if ((po->name && (po->flags & OPT_BOOL)))
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arg = "0";
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} else if (po->flags & OPT_BOOL)
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arg = "1";
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if (!po->name)
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po = find_option(options, "default");
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if (!po->name) {
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av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
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return AVERROR(EINVAL);
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}
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if (po->flags & HAS_ARG && !arg) {
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av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
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return AVERROR(EINVAL);
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}
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ret = write_option(optctx, po, opt, arg);
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if (ret < 0)
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return ret;
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return !!(po->flags & HAS_ARG);
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}
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void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
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void (*parse_arg_function)(void *, const char*))
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{
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const char *opt;
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int optindex, handleoptions = 1, ret;
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|
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/* perform system-dependent conversions for arguments list */
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prepare_app_arguments(&argc, &argv);
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/* parse options */
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optindex = 1;
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while (optindex < argc) {
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opt = argv[optindex++];
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if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
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if (opt[1] == '-' && opt[2] == '\0') {
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handleoptions = 0;
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continue;
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}
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opt++;
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if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
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exit_program(1);
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optindex += ret;
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} else {
|
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if (parse_arg_function)
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parse_arg_function(optctx, opt);
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}
|
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}
|
|
}
|
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|
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int parse_optgroup(void *optctx, OptionGroup *g)
|
|
{
|
|
int i, ret;
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
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g->group_def->name, g->arg);
|
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|
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for (i = 0; i < g->nb_opts; i++) {
|
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Option *o = &g->opts[i];
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|
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if (g->group_def->flags &&
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!(g->group_def->flags & o->opt->flags)) {
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av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
|
|
"%s %s -- you are trying to apply an input option to an "
|
|
"output file or vice versa. Move this option before the "
|
|
"file it belongs to.\n", o->key, o->opt->help,
|
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g->group_def->name, g->arg);
|
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return AVERROR(EINVAL);
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
|
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o->key, o->opt->help, o->val);
|
|
|
|
ret = write_option(optctx, o->opt, o->key, o->val);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int locate_option(int argc, char **argv, const OptionDef *options,
|
|
const char *optname)
|
|
{
|
|
const OptionDef *po;
|
|
int i;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
const char *cur_opt = argv[i];
|
|
|
|
if (*cur_opt++ != '-')
|
|
continue;
|
|
|
|
po = find_option(options, cur_opt);
|
|
if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
|
|
po = find_option(options, cur_opt + 2);
|
|
|
|
if ((!po->name && !strcmp(cur_opt, optname)) ||
|
|
(po->name && !strcmp(optname, po->name)))
|
|
return i;
|
|
|
|
if (!po->name || po->flags & HAS_ARG)
|
|
i++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void dump_argument(const char *a)
|
|
{
|
|
const unsigned char *p;
|
|
|
|
for (p = a; *p; p++)
|
|
if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
|
|
*p == '_' || (*p >= 'a' && *p <= 'z')))
|
|
break;
|
|
if (!*p) {
|
|
fputs(a, report_file);
|
|
return;
|
|
}
|
|
fputc('"', report_file);
|
|
for (p = a; *p; p++) {
|
|
if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
|
|
fprintf(report_file, "\\%c", *p);
|
|
else if (*p < ' ' || *p > '~')
|
|
fprintf(report_file, "\\x%02x", *p);
|
|
else
|
|
fputc(*p, report_file);
|
|
}
|
|
fputc('"', report_file);
|
|
}
|
|
|
|
static void check_options(const OptionDef *po)
|
|
{
|
|
while (po->name) {
|
|
if (po->flags & OPT_PERFILE)
|
|
av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
|
|
po++;
|
|
}
|
|
}
|
|
|
|
void parse_loglevel(int argc, char **argv, const OptionDef *options)
|
|
{
|
|
int idx = locate_option(argc, argv, options, "loglevel");
|
|
const char *env;
|
|
|
|
check_options(options);
|
|
|
|
if (!idx)
|
|
idx = locate_option(argc, argv, options, "v");
|
|
if (idx && argv[idx + 1])
|
|
opt_loglevel(NULL, "loglevel", argv[idx + 1]);
|
|
idx = locate_option(argc, argv, options, "report");
|
|
if ((env = getenv("FFREPORT")) || idx) {
|
|
init_report(env);
|
|
if (report_file) {
|
|
int i;
|
|
fprintf(report_file, "Command line:\n");
|
|
for (i = 0; i < argc; i++) {
|
|
dump_argument(argv[i]);
|
|
fputc(i < argc - 1 ? ' ' : '\n', report_file);
|
|
}
|
|
fflush(report_file);
|
|
}
|
|
}
|
|
idx = locate_option(argc, argv, options, "hide_banner");
|
|
if (idx)
|
|
hide_banner = 1;
|
|
}
|
|
|
|
static const AVOption *opt_find(void *obj, const char *name, const char *unit,
|
|
int opt_flags, int search_flags)
|
|
{
|
|
const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
|
|
if(o && !o->flags)
|
|
return NULL;
|
|
return o;
|
|
}
|
|
|
|
#define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
|
|
int opt_default(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const AVOption *o;
|
|
int consumed = 0;
|
|
char opt_stripped[128];
|
|
const char *p;
|
|
const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
|
|
#if CONFIG_AVRESAMPLE
|
|
const AVClass *rc = avresample_get_class();
|
|
#endif
|
|
#if CONFIG_SWSCALE
|
|
const AVClass *sc = sws_get_class();
|
|
#endif
|
|
#if CONFIG_SWRESAMPLE
|
|
const AVClass *swr_class = swr_get_class();
|
|
#endif
|
|
|
|
if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
|
|
av_log_set_level(AV_LOG_DEBUG);
|
|
|
|
if (!(p = strchr(opt, ':')))
|
|
p = opt + strlen(opt);
|
|
av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
|
|
|
|
if ((o = opt_find(&cc, opt_stripped, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
|
|
((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
|
|
(o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
|
|
av_dict_set(&codec_opts, opt, arg, FLAGS);
|
|
consumed = 1;
|
|
}
|
|
if ((o = opt_find(&fc, opt, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
|
|
av_dict_set(&format_opts, opt, arg, FLAGS);
|
|
if (consumed)
|
|
av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
|
|
consumed = 1;
|
|
}
|
|
#if CONFIG_SWSCALE
|
|
if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
|
|
struct SwsContext *sws = sws_alloc_context();
|
|
int ret = av_opt_set(sws, opt, arg, 0);
|
|
sws_freeContext(sws);
|
|
if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
|
|
!strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
|
|
!strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
|
|
av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
|
|
return ret;
|
|
}
|
|
|
|
av_dict_set(&sws_dict, opt, arg, FLAGS);
|
|
|
|
consumed = 1;
|
|
}
|
|
#else
|
|
if (!consumed && !strcmp(opt, "sws_flags")) {
|
|
av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
|
|
consumed = 1;
|
|
}
|
|
#endif
|
|
#if CONFIG_SWRESAMPLE
|
|
if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
|
|
struct SwrContext *swr = swr_alloc();
|
|
int ret = av_opt_set(swr, opt, arg, 0);
|
|
swr_free(&swr);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
|
|
return ret;
|
|
}
|
|
av_dict_set(&swr_opts, opt, arg, FLAGS);
|
|
consumed = 1;
|
|
}
|
|
#endif
|
|
#if CONFIG_AVRESAMPLE
|
|
if ((o=opt_find(&rc, opt, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
|
|
av_dict_set(&resample_opts, opt, arg, FLAGS);
|
|
consumed = 1;
|
|
}
|
|
#endif
|
|
|
|
if (consumed)
|
|
return 0;
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
}
|
|
|
|
/*
|
|
* Check whether given option is a group separator.
|
|
*
|
|
* @return index of the group definition that matched or -1 if none
|
|
*/
|
|
static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
|
|
const char *opt)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nb_groups; i++) {
|
|
const OptionGroupDef *p = &groups[i];
|
|
if (p->sep && !strcmp(p->sep, opt))
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Finish parsing an option group.
|
|
*
|
|
* @param group_idx which group definition should this group belong to
|
|
* @param arg argument of the group delimiting option
|
|
*/
|
|
static void finish_group(OptionParseContext *octx, int group_idx,
|
|
const char *arg)
|
|
{
|
|
OptionGroupList *l = &octx->groups[group_idx];
|
|
OptionGroup *g;
|
|
|
|
GROW_ARRAY(l->groups, l->nb_groups);
|
|
g = &l->groups[l->nb_groups - 1];
|
|
|
|
*g = octx->cur_group;
|
|
g->arg = arg;
|
|
g->group_def = l->group_def;
|
|
g->sws_dict = sws_dict;
|
|
g->swr_opts = swr_opts;
|
|
g->codec_opts = codec_opts;
|
|
g->format_opts = format_opts;
|
|
g->resample_opts = resample_opts;
|
|
|
|
codec_opts = NULL;
|
|
format_opts = NULL;
|
|
resample_opts = NULL;
|
|
sws_dict = NULL;
|
|
swr_opts = NULL;
|
|
init_opts();
|
|
|
|
memset(&octx->cur_group, 0, sizeof(octx->cur_group));
|
|
}
|
|
|
|
/*
|
|
* Add an option instance to currently parsed group.
|
|
*/
|
|
static void add_opt(OptionParseContext *octx, const OptionDef *opt,
|
|
const char *key, const char *val)
|
|
{
|
|
int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
|
|
OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
|
|
|
|
GROW_ARRAY(g->opts, g->nb_opts);
|
|
g->opts[g->nb_opts - 1].opt = opt;
|
|
g->opts[g->nb_opts - 1].key = key;
|
|
g->opts[g->nb_opts - 1].val = val;
|
|
}
|
|
|
|
static void init_parse_context(OptionParseContext *octx,
|
|
const OptionGroupDef *groups, int nb_groups)
|
|
{
|
|
static const OptionGroupDef global_group = { "global" };
|
|
int i;
|
|
|
|
memset(octx, 0, sizeof(*octx));
|
|
|
|
octx->nb_groups = nb_groups;
|
|
octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
|
|
if (!octx->groups)
|
|
exit_program(1);
|
|
|
|
for (i = 0; i < octx->nb_groups; i++)
|
|
octx->groups[i].group_def = &groups[i];
|
|
|
|
octx->global_opts.group_def = &global_group;
|
|
octx->global_opts.arg = "";
|
|
|
|
init_opts();
|
|
}
|
|
|
|
void uninit_parse_context(OptionParseContext *octx)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < octx->nb_groups; i++) {
|
|
OptionGroupList *l = &octx->groups[i];
|
|
|
|
for (j = 0; j < l->nb_groups; j++) {
|
|
av_freep(&l->groups[j].opts);
|
|
av_dict_free(&l->groups[j].codec_opts);
|
|
av_dict_free(&l->groups[j].format_opts);
|
|
av_dict_free(&l->groups[j].resample_opts);
|
|
|
|
av_dict_free(&l->groups[j].sws_dict);
|
|
av_dict_free(&l->groups[j].swr_opts);
|
|
}
|
|
av_freep(&l->groups);
|
|
}
|
|
av_freep(&octx->groups);
|
|
|
|
av_freep(&octx->cur_group.opts);
|
|
av_freep(&octx->global_opts.opts);
|
|
|
|
uninit_opts();
|
|
}
|
|
|
|
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
|
|
const OptionDef *options,
|
|
const OptionGroupDef *groups, int nb_groups)
|
|
{
|
|
int optindex = 1;
|
|
int dashdash = -2;
|
|
|
|
/* perform system-dependent conversions for arguments list */
|
|
prepare_app_arguments(&argc, &argv);
|
|
|
|
init_parse_context(octx, groups, nb_groups);
|
|
av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
|
|
|
|
while (optindex < argc) {
|
|
const char *opt = argv[optindex++], *arg;
|
|
const OptionDef *po;
|
|
int ret;
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
|
|
|
|
if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
|
|
dashdash = optindex;
|
|
continue;
|
|
}
|
|
/* unnamed group separators, e.g. output filename */
|
|
if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
|
|
finish_group(octx, 0, opt);
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
|
|
continue;
|
|
}
|
|
opt++;
|
|
|
|
#define GET_ARG(arg) \
|
|
do { \
|
|
arg = argv[optindex++]; \
|
|
if (!arg) { \
|
|
av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
|
|
return AVERROR(EINVAL); \
|
|
} \
|
|
} while (0)
|
|
|
|
/* named group separators, e.g. -i */
|
|
if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
|
|
GET_ARG(arg);
|
|
finish_group(octx, ret, arg);
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
|
|
groups[ret].name, arg);
|
|
continue;
|
|
}
|
|
|
|
/* normal options */
|
|
po = find_option(options, opt);
|
|
if (po->name) {
|
|
if (po->flags & OPT_EXIT) {
|
|
/* optional argument, e.g. -h */
|
|
arg = argv[optindex++];
|
|
} else if (po->flags & HAS_ARG) {
|
|
GET_ARG(arg);
|
|
} else {
|
|
arg = "1";
|
|
}
|
|
|
|
add_opt(octx, po, opt, arg);
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
|
|
"argument '%s'.\n", po->name, po->help, arg);
|
|
continue;
|
|
}
|
|
|
|
/* AVOptions */
|
|
if (argv[optindex]) {
|
|
ret = opt_default(NULL, opt, argv[optindex]);
|
|
if (ret >= 0) {
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
|
|
"argument '%s'.\n", opt, argv[optindex]);
|
|
optindex++;
|
|
continue;
|
|
} else if (ret != AVERROR_OPTION_NOT_FOUND) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
|
|
"with argument '%s'.\n", opt, argv[optindex]);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* boolean -nofoo options */
|
|
if (opt[0] == 'n' && opt[1] == 'o' &&
|
|
(po = find_option(options, opt + 2)) &&
|
|
po->name && po->flags & OPT_BOOL) {
|
|
add_opt(octx, po, opt, "0");
|
|
av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
|
|
"argument 0.\n", po->name, po->help);
|
|
continue;
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
}
|
|
|
|
if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
|
|
av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
|
|
"command: may be ignored.\n");
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
int ret;
|
|
unsigned flags = av_get_cpu_flags();
|
|
|
|
if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
|
|
return ret;
|
|
|
|
av_force_cpu_flags(flags);
|
|
return 0;
|
|
}
|
|
|
|
int opt_loglevel(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const struct { const char *name; int level; } log_levels[] = {
|
|
{ "quiet" , AV_LOG_QUIET },
|
|
{ "panic" , AV_LOG_PANIC },
|
|
{ "fatal" , AV_LOG_FATAL },
|
|
{ "error" , AV_LOG_ERROR },
|
|
{ "warning", AV_LOG_WARNING },
|
|
{ "info" , AV_LOG_INFO },
|
|
{ "verbose", AV_LOG_VERBOSE },
|
|
{ "debug" , AV_LOG_DEBUG },
|
|
{ "trace" , AV_LOG_TRACE },
|
|
};
|
|
const char *token;
|
|
char *tail;
|
|
int flags = av_log_get_flags();
|
|
int level = av_log_get_level();
|
|
int cmd, i = 0;
|
|
|
|
av_assert0(arg);
|
|
while (*arg) {
|
|
token = arg;
|
|
if (*token == '+' || *token == '-') {
|
|
cmd = *token++;
|
|
} else {
|
|
cmd = 0;
|
|
}
|
|
if (!i && !cmd) {
|
|
flags = 0; /* missing relative prefix, build absolute value */
|
|
}
|
|
if (!strncmp(token, "repeat", 6)) {
|
|
if (cmd == '-') {
|
|
flags |= AV_LOG_SKIP_REPEATED;
|
|
} else {
|
|
flags &= ~AV_LOG_SKIP_REPEATED;
|
|
}
|
|
arg = token + 6;
|
|
} else if (!strncmp(token, "level", 5)) {
|
|
if (cmd == '-') {
|
|
flags &= ~AV_LOG_PRINT_LEVEL;
|
|
} else {
|
|
flags |= AV_LOG_PRINT_LEVEL;
|
|
}
|
|
arg = token + 5;
|
|
} else {
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
if (!*arg) {
|
|
goto end;
|
|
} else if (*arg == '+') {
|
|
arg++;
|
|
} else if (!i) {
|
|
flags = av_log_get_flags(); /* level value without prefix, reset flags */
|
|
}
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
|
|
if (!strcmp(log_levels[i].name, arg)) {
|
|
level = log_levels[i].level;
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
level = strtol(arg, &tail, 10);
|
|
if (*tail) {
|
|
av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
|
|
"Possible levels are numbers or:\n", arg);
|
|
for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
|
|
av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
|
|
exit_program(1);
|
|
}
|
|
|
|
end:
|
|
av_log_set_flags(flags);
|
|
av_log_set_level(level);
|
|
return 0;
|
|
}
|
|
|
|
static void expand_filename_template(AVBPrint *bp, const char *template,
|
|
struct tm *tm)
|
|
{
|
|
int c;
|
|
|
|
while ((c = *(template++))) {
|
|
if (c == '%') {
|
|
if (!(c = *(template++)))
|
|
break;
|
|
switch (c) {
|
|
case 'p':
|
|
av_bprintf(bp, "%s", program_name);
|
|
break;
|
|
case 't':
|
|
av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
|
|
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
|
|
tm->tm_hour, tm->tm_min, tm->tm_sec);
|
|
break;
|
|
case '%':
|
|
av_bprint_chars(bp, c, 1);
|
|
break;
|
|
}
|
|
} else {
|
|
av_bprint_chars(bp, c, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int init_report(const char *env)
|
|
{
|
|
char *filename_template = NULL;
|
|
char *key, *val;
|
|
int ret, count = 0;
|
|
int prog_loglevel, envlevel = 0;
|
|
time_t now;
|
|
struct tm *tm;
|
|
AVBPrint filename;
|
|
|
|
if (report_file) /* already opened */
|
|
return 0;
|
|
time(&now);
|
|
tm = localtime(&now);
|
|
|
|
while (env && *env) {
|
|
if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
|
|
if (count)
|
|
av_log(NULL, AV_LOG_ERROR,
|
|
"Failed to parse FFREPORT environment variable: %s\n",
|
|
av_err2str(ret));
|
|
break;
|
|
}
|
|
if (*env)
|
|
env++;
|
|
count++;
|
|
if (!strcmp(key, "file")) {
|
|
av_free(filename_template);
|
|
filename_template = val;
|
|
val = NULL;
|
|
} else if (!strcmp(key, "level")) {
|
|
char *tail;
|
|
report_file_level = strtol(val, &tail, 10);
|
|
if (*tail) {
|
|
av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
|
|
exit_program(1);
|
|
}
|
|
envlevel = 1;
|
|
} else {
|
|
av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
|
|
}
|
|
av_free(val);
|
|
av_free(key);
|
|
}
|
|
|
|
av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
|
|
expand_filename_template(&filename,
|
|
av_x_if_null(filename_template, "%p-%t.log"), tm);
|
|
av_free(filename_template);
|
|
if (!av_bprint_is_complete(&filename)) {
|
|
av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
prog_loglevel = av_log_get_level();
|
|
if (!envlevel)
|
|
report_file_level = FFMAX(report_file_level, prog_loglevel);
|
|
|
|
report_file = fopen(filename.str, "w");
|
|
if (!report_file) {
|
|
int ret = AVERROR(errno);
|
|
av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
|
|
filename.str, strerror(errno));
|
|
return ret;
|
|
}
|
|
av_log_set_callback(log_callback_report);
|
|
av_log(NULL, AV_LOG_INFO,
|
|
"%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
|
|
"Report written to \"%s\"\n"
|
|
"Log level: %d\n",
|
|
program_name,
|
|
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
|
|
tm->tm_hour, tm->tm_min, tm->tm_sec,
|
|
filename.str, report_file_level);
|
|
av_bprint_finalize(&filename, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int opt_report(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
return init_report(NULL);
|
|
}
|
|
|
|
int opt_max_alloc(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
char *tail;
|
|
size_t max;
|
|
|
|
max = strtol(arg, &tail, 10);
|
|
if (*tail) {
|
|
av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
|
|
exit_program(1);
|
|
}
|
|
av_max_alloc(max);
|
|
return 0;
|
|
}
|
|
|
|
int opt_timelimit(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
#if HAVE_SETRLIMIT
|
|
int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
|
|
struct rlimit rl = { lim, lim + 1 };
|
|
if (setrlimit(RLIMIT_CPU, &rl))
|
|
perror("setrlimit");
|
|
#else
|
|
av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
void print_error(const char *filename, int err)
|
|
{
|
|
char errbuf[128];
|
|
const char *errbuf_ptr = errbuf;
|
|
|
|
if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
|
|
errbuf_ptr = strerror(AVUNERROR(err));
|
|
av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
|
|
}
|
|
|
|
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(avresample, AVRESAMPLE, 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) {
|
|
strncpy(conflist, "~--", 3);
|
|
}
|
|
|
|
// Compensate for the weirdness this would cause
|
|
// when passing 'pkg-config --static'.
|
|
while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
|
|
strncpy(remove_tilde, "pkg-config ", 11);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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 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(" %s%s %-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);
|
|
}
|
|
|
|
#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_TRUNCATED)
|
|
printf("trunc ");
|
|
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_SUBFRAMES)
|
|
printf("subframes ");
|
|
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_AUTO_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_AUTO_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_AUTO_THREADS : printf("auto"); 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);
|
|
if (!config)
|
|
break;
|
|
printf("%s ", av_hwdevice_get_type_name(config->device_type));
|
|
}
|
|
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);
|
|
PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
|
|
0, GET_CH_LAYOUT_DESC);
|
|
|
|
if (c->priv_class) {
|
|
show_help_children(c->priv_class,
|
|
AV_OPT_FLAG_ENCODING_PARAM |
|
|
AV_OPT_FLAG_DECODING_PARAM);
|
|
}
|
|
}
|
|
|
|
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 '?';
|
|
}
|
|
}
|
|
|
|
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 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 unsigned 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)))) {
|
|
av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
|
|
exit_program(1);
|
|
}
|
|
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 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(")");
|
|
}
|
|
|
|
int show_codecs(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
const AVCodecDescriptor **codecs;
|
|
unsigned i, nb_codecs = get_codecs_sorted(&codecs);
|
|
|
|
printf("Codecs:\n"
|
|
" D..... = Decoding supported\n"
|
|
" .E.... = Encoding supported\n"
|
|
" ..V... = Video codec\n"
|
|
" ..A... = Audio codec\n"
|
|
" ..S... = Subtitle 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(" ");
|
|
printf(avcodec_find_decoder(desc->id) ? "D" : ".");
|
|
printf(avcodec_find_encoder(desc->id) ? "E" : ".");
|
|
|
|
printf("%c", get_media_type_char(desc->type));
|
|
printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
|
|
printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
|
|
printf((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", get_media_type_char(desc->type));
|
|
printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
|
|
printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
|
|
printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
|
|
printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
|
|
printf((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_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_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++) {
|
|
if (i) {
|
|
*(descr_cur++) = '-';
|
|
*(descr_cur++) = '>';
|
|
}
|
|
pad = i ? filter->outputs : filter->inputs;
|
|
for (j = 0; pad && avfilter_pad_get_name(pad, j); 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;
|
|
}
|
|
|
|
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\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 %2d\n",
|
|
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));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int show_layouts(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
int i = 0;
|
|
uint64_t layout, j;
|
|
const char *name, *descr;
|
|
|
|
printf("Individual channels:\n"
|
|
"NAME DESCRIPTION\n");
|
|
for (i = 0; i < 63; i++) {
|
|
name = av_get_channel_name((uint64_t)1 << i);
|
|
if (!name)
|
|
continue;
|
|
descr = av_get_channel_description((uint64_t)1 << i);
|
|
printf("%-14s %s\n", name, descr);
|
|
}
|
|
printf("\nStandard channel layouts:\n"
|
|
"NAME DECOMPOSITION\n");
|
|
for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
|
|
if (name) {
|
|
printf("%-14s ", name);
|
|
for (j = 1; j; j <<= 1)
|
|
if ((layout & j))
|
|
printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
|
|
printf("\n");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int show_sample_fmts(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
int i;
|
|
char fmt_str[128];
|
|
for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
|
|
printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
|
|
return 0;
|
|
}
|
|
|
|
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_pad_count(f->inputs);
|
|
for (i = 0; i < count; i++) {
|
|
printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
|
|
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_pad_count(f->outputs);
|
|
for (i = 0; i < count; i++) {
|
|
printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
|
|
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;
|
|
}
|
|
|
|
int read_yesno(void)
|
|
{
|
|
int c = getchar();
|
|
int yesno = (av_toupper(c) == 'Y');
|
|
|
|
while (c != '\n' && c != EOF)
|
|
c = getchar();
|
|
|
|
return yesno;
|
|
}
|
|
|
|
FILE *get_preset_file(char *filename, size_t filename_size,
|
|
const char *preset_name, int is_path,
|
|
const char *codec_name)
|
|
{
|
|
FILE *f = NULL;
|
|
int i;
|
|
const char *base[3] = { getenv("FFMPEG_DATADIR"),
|
|
getenv("HOME"),
|
|
FFMPEG_DATADIR, };
|
|
|
|
if (is_path) {
|
|
av_strlcpy(filename, preset_name, filename_size);
|
|
f = fopen(filename, "r");
|
|
} else {
|
|
#if HAVE_GETMODULEHANDLE && defined(_WIN32)
|
|
char datadir[MAX_PATH], *ls;
|
|
base[2] = NULL;
|
|
|
|
if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
|
|
{
|
|
for (ls = datadir; ls < datadir + strlen(datadir); ls++)
|
|
if (*ls == '\\') *ls = '/';
|
|
|
|
if (ls = strrchr(datadir, '/'))
|
|
{
|
|
*ls = 0;
|
|
strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
|
|
base[2] = datadir;
|
|
}
|
|
}
|
|
#endif
|
|
for (i = 0; i < 3 && !f; i++) {
|
|
if (!base[i])
|
|
continue;
|
|
snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
|
|
i != 1 ? "" : "/.ffmpeg", preset_name);
|
|
f = fopen(filename, "r");
|
|
if (!f && codec_name) {
|
|
snprintf(filename, filename_size,
|
|
"%s%s/%s-%s.ffpreset",
|
|
base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
|
|
preset_name);
|
|
f = fopen(filename, "r");
|
|
}
|
|
}
|
|
}
|
|
|
|
return f;
|
|
}
|
|
|
|
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
|
|
{
|
|
int ret = avformat_match_stream_specifier(s, st, spec);
|
|
if (ret < 0)
|
|
av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
|
|
return ret;
|
|
}
|
|
|
|
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
|
|
AVFormatContext *s, AVStream *st, AVCodec *codec)
|
|
{
|
|
AVDictionary *ret = NULL;
|
|
AVDictionaryEntry *t = NULL;
|
|
int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
|
|
: AV_OPT_FLAG_DECODING_PARAM;
|
|
char prefix = 0;
|
|
const AVClass *cc = avcodec_get_class();
|
|
|
|
if (!codec)
|
|
codec = s->oformat ? avcodec_find_encoder(codec_id)
|
|
: avcodec_find_decoder(codec_id);
|
|
|
|
switch (st->codecpar->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
prefix = 'v';
|
|
flags |= AV_OPT_FLAG_VIDEO_PARAM;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
prefix = 'a';
|
|
flags |= AV_OPT_FLAG_AUDIO_PARAM;
|
|
break;
|
|
case AVMEDIA_TYPE_SUBTITLE:
|
|
prefix = 's';
|
|
flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
|
|
break;
|
|
}
|
|
|
|
while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
|
|
char *p = strchr(t->key, ':');
|
|
|
|
/* check stream specification in opt name */
|
|
if (p)
|
|
switch (check_stream_specifier(s, st, p + 1)) {
|
|
case 1: *p = 0; break;
|
|
case 0: continue;
|
|
default: exit_program(1);
|
|
}
|
|
|
|
if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
|
|
!codec ||
|
|
(codec->priv_class &&
|
|
av_opt_find(&codec->priv_class, t->key, NULL, flags,
|
|
AV_OPT_SEARCH_FAKE_OBJ)))
|
|
av_dict_set(&ret, t->key, t->value, 0);
|
|
else if (t->key[0] == prefix &&
|
|
av_opt_find(&cc, t->key + 1, NULL, flags,
|
|
AV_OPT_SEARCH_FAKE_OBJ))
|
|
av_dict_set(&ret, t->key + 1, t->value, 0);
|
|
|
|
if (p)
|
|
*p = ':';
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
|
|
AVDictionary *codec_opts)
|
|
{
|
|
int i;
|
|
AVDictionary **opts;
|
|
|
|
if (!s->nb_streams)
|
|
return NULL;
|
|
opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
|
|
if (!opts) {
|
|
av_log(NULL, AV_LOG_ERROR,
|
|
"Could not alloc memory for stream options.\n");
|
|
return NULL;
|
|
}
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
|
|
s, s->streams[i], NULL);
|
|
return opts;
|
|
}
|
|
|
|
void *grow_array(void *array, int elem_size, int *size, int new_size)
|
|
{
|
|
if (new_size >= INT_MAX / elem_size) {
|
|
av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
|
|
exit_program(1);
|
|
}
|
|
if (*size < new_size) {
|
|
uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
|
|
if (!tmp) {
|
|
av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
|
|
exit_program(1);
|
|
}
|
|
memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
|
|
*size = new_size;
|
|
return tmp;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
double get_rotation(AVStream *st)
|
|
{
|
|
uint8_t* displaymatrix = av_stream_get_side_data(st,
|
|
AV_PKT_DATA_DISPLAYMATRIX, NULL);
|
|
double theta = 0;
|
|
if (displaymatrix)
|
|
theta = -av_display_rotation_get((int32_t*) displaymatrix);
|
|
|
|
theta -= 360*floor(theta/360 + 0.9/360);
|
|
|
|
if (fabs(theta - 90*round(theta/90)) > 2)
|
|
av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
|
|
"If you want to help, upload a sample "
|
|
"of this file to https://streams.videolan.org/upload/ "
|
|
"and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
|
|
|
|
return theta;
|
|
}
|
|
|
|
#if CONFIG_AVDEVICE
|
|
static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
|
|
{
|
|
int ret, i;
|
|
AVDeviceInfoList *device_list = NULL;
|
|
|
|
if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
|
|
return AVERROR(EINVAL);
|
|
|
|
printf("Auto-detected sources for %s:\n", fmt->name);
|
|
if (!fmt->get_device_list) {
|
|
ret = AVERROR(ENOSYS);
|
|
printf("Cannot list sources. Not implemented.\n");
|
|
goto fail;
|
|
}
|
|
|
|
if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
|
|
printf("Cannot list sources.\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < device_list->nb_devices; i++) {
|
|
printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
|
|
device_list->devices[i]->device_name, device_list->devices[i]->device_description);
|
|
}
|
|
|
|
fail:
|
|
avdevice_free_list_devices(&device_list);
|
|
return ret;
|
|
}
|
|
|
|
static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
|
|
{
|
|
int ret, i;
|
|
AVDeviceInfoList *device_list = NULL;
|
|
|
|
if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
|
|
return AVERROR(EINVAL);
|
|
|
|
printf("Auto-detected sinks for %s:\n", fmt->name);
|
|
if (!fmt->get_device_list) {
|
|
ret = AVERROR(ENOSYS);
|
|
printf("Cannot list sinks. Not implemented.\n");
|
|
goto fail;
|
|
}
|
|
|
|
if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
|
|
printf("Cannot list sinks.\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < device_list->nb_devices; i++) {
|
|
printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
|
|
device_list->devices[i]->device_name, device_list->devices[i]->device_description);
|
|
}
|
|
|
|
fail:
|
|
avdevice_free_list_devices(&device_list);
|
|
return ret;
|
|
}
|
|
|
|
static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
|
|
{
|
|
int ret;
|
|
if (arg) {
|
|
char *opts_str = NULL;
|
|
av_assert0(dev && opts);
|
|
*dev = av_strdup(arg);
|
|
if (!*dev)
|
|
return AVERROR(ENOMEM);
|
|
if ((opts_str = strchr(*dev, ','))) {
|
|
*(opts_str++) = '\0';
|
|
if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
|
|
av_freep(dev);
|
|
return ret;
|
|
}
|
|
}
|
|
} else
|
|
printf("\nDevice name is not provided.\n"
|
|
"You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
|
|
return 0;
|
|
}
|
|
|
|
int show_sources(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
AVInputFormat *fmt = NULL;
|
|
char *dev = NULL;
|
|
AVDictionary *opts = NULL;
|
|
int ret = 0;
|
|
int error_level = av_log_get_level();
|
|
|
|
av_log_set_level(AV_LOG_ERROR);
|
|
|
|
if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
|
|
goto fail;
|
|
|
|
do {
|
|
fmt = av_input_audio_device_next(fmt);
|
|
if (fmt) {
|
|
if (!strcmp(fmt->name, "lavfi"))
|
|
continue; //it's pointless to probe lavfi
|
|
if (dev && !av_match_name(dev, fmt->name))
|
|
continue;
|
|
print_device_sources(fmt, opts);
|
|
}
|
|
} while (fmt);
|
|
do {
|
|
fmt = av_input_video_device_next(fmt);
|
|
if (fmt) {
|
|
if (dev && !av_match_name(dev, fmt->name))
|
|
continue;
|
|
print_device_sources(fmt, opts);
|
|
}
|
|
} while (fmt);
|
|
fail:
|
|
av_dict_free(&opts);
|
|
av_free(dev);
|
|
av_log_set_level(error_level);
|
|
return ret;
|
|
}
|
|
|
|
int show_sinks(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
AVOutputFormat *fmt = NULL;
|
|
char *dev = NULL;
|
|
AVDictionary *opts = NULL;
|
|
int ret = 0;
|
|
int error_level = av_log_get_level();
|
|
|
|
av_log_set_level(AV_LOG_ERROR);
|
|
|
|
if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
|
|
goto fail;
|
|
|
|
do {
|
|
fmt = av_output_audio_device_next(fmt);
|
|
if (fmt) {
|
|
if (dev && !av_match_name(dev, fmt->name))
|
|
continue;
|
|
print_device_sinks(fmt, opts);
|
|
}
|
|
} while (fmt);
|
|
do {
|
|
fmt = av_output_video_device_next(fmt);
|
|
if (fmt) {
|
|
if (dev && !av_match_name(dev, fmt->name))
|
|
continue;
|
|
print_device_sinks(fmt, opts);
|
|
}
|
|
} while (fmt);
|
|
fail:
|
|
av_dict_free(&opts);
|
|
av_free(dev);
|
|
av_log_set_level(error_level);
|
|
return ret;
|
|
}
|
|
|
|
#endif
|