forked from KolibriOS/kolibrios
1983 lines
62 KiB
C
1983 lines
62 KiB
C
/*
|
|
* Various utilities for command line tools
|
|
* Copyright (c) 2000-2003 Fabrice Bellard
|
|
*
|
|
* 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 <string.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <math.h>
|
|
|
|
/* Include only the enabled headers since some compilers (namely, Sun
|
|
Studio) will not omit unused inline functions and create undefined
|
|
references to libraries that are not being built. */
|
|
|
|
#include "config.h"
|
|
#include "compat/va_copy.h"
|
|
#include "libavformat/avformat.h"
|
|
#include "libavfilter/avfilter.h"
|
|
#include "libavdevice/avdevice.h"
|
|
#include "libavresample/avresample.h"
|
|
#include "libswscale/swscale.h"
|
|
#include "libswresample/swresample.h"
|
|
#include "libpostproc/postprocess.h"
|
|
#include "libavutil/avassert.h"
|
|
#include "libavutil/avstring.h"
|
|
#include "libavutil/bprint.h"
|
|
#include "libavutil/mathematics.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/parseutils.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/eval.h"
|
|
#include "libavutil/dict.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/cpu.h"
|
|
#include "cmdutils.h"
|
|
#include "version.h"
|
|
#if CONFIG_NETWORK
|
|
#include "libavformat/network.h"
|
|
#endif
|
|
#if HAVE_SYS_RESOURCE_H
|
|
#include <sys/time.h>
|
|
#include <sys/resource.h>
|
|
#endif
|
|
#if CONFIG_OPENCL
|
|
#include "libavutil/opencl.h"
|
|
#endif
|
|
|
|
|
|
static int init_report(const char *env);
|
|
|
|
struct SwsContext *sws_opts;
|
|
AVDictionary *swr_opts;
|
|
AVDictionary *format_opts, *codec_opts, *resample_opts;
|
|
|
|
const int this_year = 2013;
|
|
|
|
static FILE *report_file;
|
|
|
|
void init_opts(void)
|
|
{
|
|
|
|
if(CONFIG_SWSCALE)
|
|
sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
|
|
NULL, NULL, NULL);
|
|
}
|
|
|
|
void uninit_opts(void)
|
|
{
|
|
#if CONFIG_SWSCALE
|
|
sws_freeContext(sws_opts);
|
|
sws_opts = NULL;
|
|
#endif
|
|
|
|
av_dict_free(&swr_opts);
|
|
av_dict_free(&format_opts);
|
|
av_dict_free(&codec_opts);
|
|
av_dict_free(&resample_opts);
|
|
}
|
|
|
|
void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
|
|
{
|
|
vfprintf(stdout, fmt, vl);
|
|
}
|
|
|
|
static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
|
|
{
|
|
va_list vl2;
|
|
char line[1024];
|
|
static int print_prefix = 1;
|
|
|
|
va_copy(vl2, vl);
|
|
av_log_default_callback(ptr, level, fmt, vl);
|
|
av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
|
|
va_end(vl2);
|
|
fputs(line, report_file);
|
|
fflush(report_file);
|
|
}
|
|
|
|
static void (*program_exit)(int ret);
|
|
|
|
void register_exit(void (*cb)(int ret))
|
|
{
|
|
program_exit = cb;
|
|
}
|
|
|
|
void exit_program(int ret)
|
|
{
|
|
if (program_exit)
|
|
program_exit(ret);
|
|
|
|
exit(ret);
|
|
}
|
|
|
|
double parse_number_or_die(const char *context, const char *numstr, int type,
|
|
double min, double max)
|
|
{
|
|
char *tail;
|
|
const char *error;
|
|
double d = av_strtod(numstr, &tail);
|
|
if (*tail)
|
|
error = "Expected number for %s but found: %s\n";
|
|
else if (d < min || d > max)
|
|
error = "The value for %s was %s which is not within %f - %f\n";
|
|
else if (type == OPT_INT64 && (int64_t)d != d)
|
|
error = "Expected int64 for %s but found %s\n";
|
|
else if (type == OPT_INT && (int)d != d)
|
|
error = "Expected int for %s but found %s\n";
|
|
else
|
|
return d;
|
|
av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
|
|
exit_program(1);
|
|
return 0;
|
|
}
|
|
|
|
int64_t parse_time_or_die(const char *context, const char *timestr,
|
|
int is_duration)
|
|
{
|
|
int64_t us;
|
|
if (av_parse_time(&us, timestr, is_duration) < 0) {
|
|
av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
|
|
is_duration ? "duration" : "date", context, timestr);
|
|
exit_program(1);
|
|
}
|
|
return us;
|
|
}
|
|
|
|
void show_help_options(const OptionDef *options, const char *msg, int req_flags,
|
|
int rej_flags, int alt_flags)
|
|
{
|
|
const OptionDef *po;
|
|
int first;
|
|
|
|
first = 1;
|
|
for (po = options; po->name != NULL; po++) {
|
|
char buf[64];
|
|
|
|
if (((po->flags & req_flags) != req_flags) ||
|
|
(alt_flags && !(po->flags & alt_flags)) ||
|
|
(po->flags & rej_flags))
|
|
continue;
|
|
|
|
if (first) {
|
|
printf("%s\n", msg);
|
|
first = 0;
|
|
}
|
|
av_strlcpy(buf, po->name, sizeof(buf));
|
|
if (po->argname) {
|
|
av_strlcat(buf, " ", sizeof(buf));
|
|
av_strlcat(buf, po->argname, sizeof(buf));
|
|
}
|
|
printf("-%-17s %s\n", buf, po->help);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void show_help_children(const AVClass *class, int flags)
|
|
{
|
|
const AVClass *child = NULL;
|
|
if (class->option) {
|
|
av_opt_show2(&class, NULL, flags, 0);
|
|
printf("\n");
|
|
}
|
|
|
|
while (child = av_opt_child_class_next(class, child))
|
|
show_help_children(child, flags);
|
|
}
|
|
|
|
static const OptionDef *find_option(const OptionDef *po, const char *name)
|
|
{
|
|
const char *p = strchr(name, ':');
|
|
int len = p ? p - name : strlen(name);
|
|
|
|
while (po->name != NULL) {
|
|
if (!strncmp(name, po->name, len) && strlen(po->name) == len)
|
|
break;
|
|
po++;
|
|
}
|
|
return po;
|
|
}
|
|
|
|
/* _WIN32 means using the windows libc - cygwin doesn't define that
|
|
* by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
|
|
* it doesn't provide the actual command line via GetCommandLineW(). */
|
|
#if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
|
|
#include <windows.h>
|
|
#include <shellapi.h>
|
|
/* Will be leaked on exit */
|
|
static char** win32_argv_utf8 = NULL;
|
|
static int win32_argc = 0;
|
|
|
|
/**
|
|
* Prepare command line arguments for executable.
|
|
* For Windows - perform wide-char to UTF-8 conversion.
|
|
* Input arguments should be main() function arguments.
|
|
* @param argc_ptr Arguments number (including executable)
|
|
* @param argv_ptr Arguments list.
|
|
*/
|
|
static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
|
|
{
|
|
char *argstr_flat;
|
|
wchar_t **argv_w;
|
|
int i, buffsize = 0, offset = 0;
|
|
|
|
if (win32_argv_utf8) {
|
|
*argc_ptr = win32_argc;
|
|
*argv_ptr = win32_argv_utf8;
|
|
return;
|
|
}
|
|
|
|
win32_argc = 0;
|
|
argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
|
|
if (win32_argc <= 0 || !argv_w)
|
|
return;
|
|
|
|
/* determine the UTF-8 buffer size (including NULL-termination symbols) */
|
|
for (i = 0; i < win32_argc; i++)
|
|
buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
|
|
NULL, 0, NULL, NULL);
|
|
|
|
win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
|
|
argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
|
|
if (win32_argv_utf8 == NULL) {
|
|
LocalFree(argv_w);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < win32_argc; i++) {
|
|
win32_argv_utf8[i] = &argstr_flat[offset];
|
|
offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
|
|
&argstr_flat[offset],
|
|
buffsize - offset, NULL, NULL);
|
|
}
|
|
win32_argv_utf8[i] = NULL;
|
|
LocalFree(argv_w);
|
|
|
|
*argc_ptr = win32_argc;
|
|
*argv_ptr = win32_argv_utf8;
|
|
}
|
|
#else
|
|
static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
|
|
{
|
|
/* nothing to do */
|
|
}
|
|
#endif /* HAVE_COMMANDLINETOARGVW */
|
|
|
|
static int write_option(void *optctx, const OptionDef *po, const char *opt,
|
|
const char *arg)
|
|
{
|
|
/* new-style options contain an offset into optctx, old-style address of
|
|
* a global var*/
|
|
void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
|
|
(uint8_t *)optctx + po->u.off : po->u.dst_ptr;
|
|
int *dstcount;
|
|
|
|
if (po->flags & OPT_SPEC) {
|
|
SpecifierOpt **so = dst;
|
|
char *p = strchr(opt, ':');
|
|
|
|
dstcount = (int *)(so + 1);
|
|
*so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
|
|
(*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
|
|
dst = &(*so)[*dstcount - 1].u;
|
|
}
|
|
|
|
if (po->flags & OPT_STRING) {
|
|
char *str;
|
|
str = av_strdup(arg);
|
|
av_freep(dst);
|
|
*(char **)dst = str;
|
|
} else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
|
|
*(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
|
|
} else if (po->flags & OPT_INT64) {
|
|
*(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
|
|
} else if (po->flags & OPT_TIME) {
|
|
*(int64_t *)dst = parse_time_or_die(opt, arg, 1);
|
|
} else if (po->flags & OPT_FLOAT) {
|
|
*(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
|
|
} else if (po->flags & OPT_DOUBLE) {
|
|
*(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
|
|
} else if (po->u.func_arg) {
|
|
int ret = po->u.func_arg(optctx, opt, arg);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_ERROR,
|
|
"Failed to set value '%s' for option '%s': %s\n",
|
|
arg, opt, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
}
|
|
if (po->flags & OPT_EXIT)
|
|
exit_program(0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int parse_option(void *optctx, const char *opt, const char *arg,
|
|
const OptionDef *options)
|
|
{
|
|
const OptionDef *po;
|
|
int ret;
|
|
|
|
po = find_option(options, opt);
|
|
if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
|
|
/* handle 'no' bool option */
|
|
po = find_option(options, opt + 2);
|
|
if ((po->name && (po->flags & OPT_BOOL)))
|
|
arg = "0";
|
|
} else if (po->flags & OPT_BOOL)
|
|
arg = "1";
|
|
|
|
if (!po->name)
|
|
po = find_option(options, "default");
|
|
if (!po->name) {
|
|
av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (po->flags & HAS_ARG && !arg) {
|
|
av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
ret = write_option(optctx, po, opt, arg);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return !!(po->flags & HAS_ARG);
|
|
}
|
|
|
|
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
|
|
void (*parse_arg_function)(void *, const char*))
|
|
{
|
|
const char *opt;
|
|
int optindex, handleoptions = 1, ret;
|
|
|
|
/* perform system-dependent conversions for arguments list */
|
|
prepare_app_arguments(&argc, &argv);
|
|
|
|
/* parse options */
|
|
optindex = 1;
|
|
while (optindex < argc) {
|
|
opt = argv[optindex++];
|
|
|
|
if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
|
|
if (opt[1] == '-' && opt[2] == '\0') {
|
|
handleoptions = 0;
|
|
continue;
|
|
}
|
|
opt++;
|
|
|
|
if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
|
|
exit_program(1);
|
|
optindex += ret;
|
|
} else {
|
|
if (parse_arg_function)
|
|
parse_arg_function(optctx, opt);
|
|
}
|
|
}
|
|
}
|
|
|
|
int parse_optgroup(void *optctx, OptionGroup *g)
|
|
{
|
|
int i, ret;
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
|
|
g->group_def->name, g->arg);
|
|
|
|
for (i = 0; i < g->nb_opts; i++) {
|
|
Option *o = &g->opts[i];
|
|
|
|
if (g->group_def->flags &&
|
|
!(g->group_def->flags & o->opt->flags)) {
|
|
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,
|
|
g->group_def->name, g->arg);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
|
|
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->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);
|
|
}
|
|
|
|
void parse_loglevel(int argc, char **argv, const OptionDef *options)
|
|
{
|
|
int idx = locate_option(argc, argv, options, "loglevel");
|
|
const char *env;
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
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) ? 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
|
|
const AVClass *sc, *swr_class;
|
|
|
|
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
|
|
sc = sws_get_class();
|
|
if (!consumed && opt_find(&sc, opt, NULL, 0,
|
|
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
|
|
// XXX we only support sws_flags, not arbitrary sws options
|
|
int ret = av_opt_set(sws_opts, opt, arg, 0);
|
|
if (ret < 0) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
|
|
return ret;
|
|
}
|
|
consumed = 1;
|
|
}
|
|
#endif
|
|
#if CONFIG_SWRESAMPLE
|
|
swr_class = swr_get_class();
|
|
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;
|
|
#if CONFIG_SWSCALE
|
|
g->sws_opts = sws_opts;
|
|
#endif
|
|
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;
|
|
#if CONFIG_SWSCALE
|
|
sws_opts = NULL;
|
|
#endif
|
|
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(sizeof(*octx->groups) * octx->nb_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);
|
|
#if CONFIG_SWSCALE
|
|
sws_freeContext(l->groups[j].sws_opts);
|
|
#endif
|
|
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 options were found on the "
|
|
"commandline.\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 },
|
|
};
|
|
char *tail;
|
|
int level;
|
|
int i;
|
|
|
|
tail = strstr(arg, "repeat");
|
|
av_log_set_flags(tail ? 0 : AV_LOG_SKIP_REPEATED);
|
|
if (tail == arg)
|
|
arg += 6 + (arg[6]=='+');
|
|
if(tail && !*arg)
|
|
return 0;
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
|
|
if (!strcmp(log_levels[i].name, arg)) {
|
|
av_log_set_level(log_levels[i].level);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
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;
|
|
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 {
|
|
av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
|
|
}
|
|
av_free(val);
|
|
av_free(key);
|
|
}
|
|
|
|
av_bprint_init(&filename, 0, 1);
|
|
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);
|
|
}
|
|
|
|
report_file = fopen(filename.str, "w");
|
|
if (!report_file) {
|
|
av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
|
|
filename.str, strerror(errno));
|
|
return AVERROR(errno);
|
|
}
|
|
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",
|
|
program_name,
|
|
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
|
|
tm->tm_hour, tm->tm_min, tm->tm_sec,
|
|
filename.str);
|
|
av_bprint_finalize(&filename, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int opt_report(const char *opt)
|
|
{
|
|
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;
|
|
}
|
|
|
|
#if CONFIG_OPENCL
|
|
int opt_opencl(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
char *key, *value;
|
|
const char *opts = arg;
|
|
int ret = 0;
|
|
while (*opts) {
|
|
ret = av_opt_get_key_value(&opts, "=", ":", 0, &key, &value);
|
|
if (ret < 0)
|
|
return ret;
|
|
ret = av_opencl_set_option(key, value);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (*opts)
|
|
opts++;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
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, \
|
|
version >> 16, version >> 8 & 0xff, version & 0xff); \
|
|
} \
|
|
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, this_year);
|
|
av_log(NULL, level, "\n");
|
|
av_log(NULL, level, "%sbuilt on %s %s with %s\n",
|
|
indent, __DATE__, __TIME__, CC_IDENT);
|
|
|
|
av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
|
|
}
|
|
|
|
void show_banner(int argc, char **argv, const OptionDef *options)
|
|
{
|
|
int idx = locate_option(argc, argv, options, "version");
|
|
if (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 (0 , AV_LOG_INFO);
|
|
print_all_libs_info(SHOW_VERSION, 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;
|
|
}
|
|
|
|
int show_formats(void *optctx, const char *opt, const char *arg)
|
|
{
|
|
AVInputFormat *ifmt = NULL;
|
|
AVOutputFormat *ofmt = NULL;
|
|
const char *last_name;
|
|
|
|
printf("File formats:\n"
|
|
" D. = Demuxing supported\n"
|
|
" .E = Muxing supported\n"
|
|
" --\n");
|
|
last_name = "000";
|
|
for (;;) {
|
|
int decode = 0;
|
|
int encode = 0;
|
|
const char *name = NULL;
|
|
const char *long_name = NULL;
|
|
|
|
while ((ofmt = av_oformat_next(ofmt))) {
|
|
if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
|
|
strcmp(ofmt->name, last_name) > 0) {
|
|
name = ofmt->name;
|
|
long_name = ofmt->long_name;
|
|
encode = 1;
|
|
}
|
|
}
|
|
while ((ifmt = av_iformat_next(ifmt))) {
|
|
if ((name == NULL || 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 == NULL)
|
|
break;
|
|
last_name = name;
|
|
|
|
printf(" %s%s %-15s %s\n",
|
|
decode ? "D" : " ",
|
|
encode ? "E" : " ",
|
|
name,
|
|
long_name ? long_name:" ");
|
|
}
|
|
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 : "");
|
|
|
|
if (c->type == AVMEDIA_TYPE_VIDEO ||
|
|
c->type == AVMEDIA_TYPE_AUDIO) {
|
|
printf(" Threading capabilities: ");
|
|
switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
|
|
CODEC_CAP_SLICE_THREADS)) {
|
|
case CODEC_CAP_FRAME_THREADS |
|
|
CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
|
|
case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
|
|
case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
|
|
default: printf("no"); break;
|
|
}
|
|
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, const AVCodec *prev,
|
|
int encoder)
|
|
{
|
|
while ((prev = av_codec_next(prev))) {
|
|
if (prev->id == id &&
|
|
(encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
|
|
return prev;
|
|
}
|
|
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 ? (*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)
|
|
{
|
|
const AVCodec *codec = NULL;
|
|
|
|
printf(" (%s: ", encoder ? "encoders" : "decoders");
|
|
|
|
while ((codec = next_codec_for_id(id, codec, 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 = NULL;
|
|
|
|
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, codec, 0))) {
|
|
if (strcmp(codec->name, desc->name)) {
|
|
print_codecs_for_id(desc->id, 0);
|
|
break;
|
|
}
|
|
}
|
|
codec = NULL;
|
|
while ((codec = next_codec_for_id(desc->id, codec, 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 = NULL;
|
|
|
|
while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
|
|
printf(" %c", get_media_type_char(desc->type));
|
|
printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
|
|
printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
|
|
printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
|
|
printf((codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
|
|
printf((codec->capabilities & 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)
|
|
{
|
|
AVBitStreamFilter *bsf = NULL;
|
|
|
|
printf("Bitstream filters:\n");
|
|
while ((bsf = av_bitstream_filter_next(bsf)))
|
|
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)
|
|
{
|
|
const AVFilter av_unused(*filter) = NULL;
|
|
char descr[64], *descr_cur;
|
|
int i, j;
|
|
const AVFilterPad *pad;
|
|
|
|
printf("Filters:\n"
|
|
" T.. = Timeline support\n"
|
|
" .S. = Slice threading\n"
|
|
" ..C = Commmand 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");
|
|
#if CONFIG_AVFILTER
|
|
while ((filter = avfilter_next(filter))) {
|
|
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 && pad[j].name; j++) {
|
|
if (descr_cur >= descr + sizeof(descr) - 4)
|
|
break;
|
|
*(descr_cur++) = get_media_type_char(pad[j].type);
|
|
}
|
|
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 %-16s %-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);
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
void 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]);
|
|
}
|
|
|
|
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 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("%-12s%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("%-12s", 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))) {
|
|
int printed = 0;
|
|
|
|
while ((codec = next_codec_for_id(desc->id, codec, 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_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
|
|
|
|
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 : "");
|
|
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);
|
|
#if CONFIG_AVFILTER
|
|
} else if (!strcmp(topic, "filter")) {
|
|
show_help_filter(par);
|
|
#endif
|
|
} 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;
|
|
}
|
|
|
|
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
|
|
{
|
|
int ret;
|
|
FILE *f = fopen(filename, "rb");
|
|
|
|
if (!f) {
|
|
av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
|
|
strerror(errno));
|
|
return AVERROR(errno);
|
|
}
|
|
fseek(f, 0, SEEK_END);
|
|
*size = ftell(f);
|
|
fseek(f, 0, SEEK_SET);
|
|
if (*size == (size_t)-1) {
|
|
av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", strerror(errno));
|
|
fclose(f);
|
|
return AVERROR(errno);
|
|
}
|
|
*bufptr = av_malloc(*size + 1);
|
|
if (!*bufptr) {
|
|
av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
|
|
fclose(f);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ret = fread(*bufptr, 1, *size, f);
|
|
if (ret < *size) {
|
|
av_free(*bufptr);
|
|
if (ferror(f)) {
|
|
av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
|
|
filename, strerror(errno));
|
|
ret = AVERROR(errno);
|
|
} else
|
|
ret = AVERROR_EOF;
|
|
} else {
|
|
ret = 0;
|
|
(*bufptr)[(*size)++] = '\0';
|
|
}
|
|
|
|
fclose(f);
|
|
return ret;
|
|
}
|
|
|
|
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 {
|
|
#ifdef _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->codec->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: return NULL;
|
|
}
|
|
|
|
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(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]->codec->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, 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;
|
|
}
|