Data Structures
struct	SpecifierOpt

struct	OptionDef

struct	Option

struct	OptionGroupDef

struct	OptionGroup

struct	OptionGroupList

struct	OptionParseContext

Macros
#define	AV_LOG_STDERR -16

#define	HAS_ARG 0x0001

#define	OPT_BOOL 0x0002

#define	OPT_EXPERT 0x0004

#define	OPT_STRING 0x0008

#define	OPT_VIDEO 0x0010

#define	OPT_AUDIO 0x0020

#define	OPT_INT 0x0080

#define	OPT_FLOAT 0x0100

#define	OPT_SUBTITLE 0x0200

#define	OPT_INT64 0x0400

#define	OPT_EXIT 0x0800

#define	OPT_DATA 0x1000

#define	OPT_PERFILE

#define	OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */

#define	OPT_SPEC

#define	OPT_TIME 0x10000

#define	OPT_DOUBLE 0x20000

#define	OPT_INPUT 0x40000

#define	OPT_OUTPUT 0x80000

#define	media_type_string av_get_media_type_string

#define	GROW_ARRAY(array, nb_elems) array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)

#define	GET_PIX_FMT_NAME(pix_fmt) const char *name = av_get_pix_fmt_name(pix_fmt);

#define	GET_CODEC_NAME(id) const char *name = avcodec_descriptor_get(id)->name;

#define	GET_SAMPLE_FMT_NAME(sample_fmt) const char *name = av_get_sample_fmt_name(sample_fmt)

#define	GET_SAMPLE_RATE_NAME(rate)

#define	GET_CH_LAYOUT_NAME(ch_layout)

#define	GET_CH_LAYOUT_DESC(ch_layout)

Typedefs
typedef struct SpecifierOpt	SpecifierOpt

typedef struct OptionDef	OptionDef

typedef struct Option	Option

typedef struct OptionGroupDef	OptionGroupDef

typedef struct OptionGroup	OptionGroup

typedef struct OptionGroupList	OptionGroupList

typedef struct OptionParseContext	OptionParseContext

Functions
void	register_exit (void(*cb)(int ret))

void	exit_program (int ret) av_noreturn

void	init_dynload (void)

void	init_opts (void)

void	uninit_opts (void)

void	log_callback_help (void ptr, int level, const char fmt, va_list vl)

int	opt_cpuflags (void optctx, const char opt, const char *arg)

int	opt_cpucount (void optctx, const char opt, const char *arg)

int	opt_default (void optctx, const char opt, const char *arg)

int	opt_loglevel (void optctx, const char opt, const char *arg)

int	opt_report (void optctx, const char opt, const char *arg)

int	opt_max_alloc (void optctx, const char opt, const char *arg)

int	opt_codec_debug (void optctx, const char opt, const char *arg)

int	opt_timelimit (void optctx, const char opt, const char *arg)

double	parse_number_or_die (const char context, const char numstr, int type, double min, double max)

int64_t	parse_time_or_die (const char context, const char timestr, int is_duration)

void	show_help_options (const OptionDef options, const char msg, int req_flags, int rej_flags, int alt_flags)

void	show_help_children (const AVClass *class, int flags)

void	show_help_default_ffmpeg (const char opt, const char arg)

void	show_help_default_ffprobe (const char opt, const char arg)

int	show_help (void optctx, const char opt, const char *arg)

void	parse_options (void optctx, int argc, char argv, const OptionDef options, void(parse_arg_function)(void optctx, const char *))

int	parse_option (void optctx, const char opt, const char arg, const OptionDef options)

int	parse_optgroup (void optctx, OptionGroup g)

int	split_commandline (OptionParseContext octx, int argc, char argv[], const OptionDef options, const OptionGroupDef groups, int nb_groups)

void	uninit_parse_context (OptionParseContext *octx)

void	parse_loglevel (int argc, char *argv, const OptionDef options)

int	locate_option (int argc, char *argv, const OptionDef options, const char *optname)

int	check_stream_specifier (AVFormatContext s, AVStream st, const char *spec)

AVDictionary *	filter_codec_opts (AVDictionary opts, enum AVCodecID codec_id, AVFormatContext s, AVStream st, const AVCodec codec)

AVDictionary **	setup_find_stream_info_opts (AVFormatContext s, AVDictionary codec_opts)

void	print_error (const char *filename, int err)

void	show_banner (int argc, char *argv, const OptionDef options)

int	show_version (void optctx, const char opt, const char *arg)

int	show_buildconf (void optctx, const char opt, const char *arg)

int	show_license (void optctx, const char opt, const char *arg)

int	show_formats (void optctx, const char opt, const char *arg)

int	show_muxers (void optctx, const char opt, const char *arg)

int	show_demuxers (void optctx, const char opt, const char *arg)

int	show_devices (void optctx, const char opt, const char *arg)

int	show_codecs (void optctx, const char opt, const char *arg)

int	show_decoders (void optctx, const char opt, const char *arg)

int	show_encoders (void optctx, const char opt, const char *arg)

int	show_filters (void optctx, const char opt, const char *arg)

int	show_bsfs (void optctx, const char opt, const char *arg)

int	show_protocols (void optctx, const char opt, const char *arg)

int	show_pix_fmts (void optctx, const char opt, const char *arg)

int	show_layouts (void optctx, const char opt, const char *arg)

int	show_sample_fmts (void optctx, const char opt, const char *arg)

int	show_colors (void optctx, const char opt, const char *arg)

int	read_yesno (void)

FILE *	get_preset_file (char filename, size_t filename_size, const char preset_name, int is_path, const char *codec_name)

void *	grow_array (void array, int elem_size, int size, int new_size)

double	get_rotation (AVStream *st)

Variables
__thread char *	program_name

__thread int	program_birth_year

__thread AVCodecContext *	avcodec_opts [AVMEDIA_TYPE_NB]

__thread AVFormatContext *	avformat_opts

__thread AVDictionary *	sws_dict

__thread AVDictionary *	swr_opts

__thread AVDictionary *	format_opts

__thread AVDictionary *	codec_opts

__thread AVDictionary *	resample_opts

__thread int	hide_banner

__thread int	find_stream_info

Macro Definition Documentation

◆ AV_LOG_STDERR

#define AV_LOG_STDERR -16

Defines logs printed to stderr by ffmpeg. They are not filtered and always redirected.

Definition at line 61 of file fftools_cmdutils.h.

◆ GET_CH_LAYOUT_DESC

#define GET_CH_LAYOUT_DESC ( ch_layout )

Value:

char name[128];\

av_get_channel_layout_string(name, sizeof(name), 0, ch_layout);

Definition at line 632 of file fftools_cmdutils.h.

◆ GET_CH_LAYOUT_NAME

#define GET_CH_LAYOUT_NAME ( ch_layout )

Value:

char name[16];\

snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);

Definition at line 628 of file fftools_cmdutils.h.

◆ GET_CODEC_NAME

#define GET_CODEC_NAME ( id ) const char *name = avcodec_descriptor_get(id)->name;

Definition at line 618 of file fftools_cmdutils.h.

◆ GET_PIX_FMT_NAME

#define GET_PIX_FMT_NAME ( pix_fmt ) const char *name = av_get_pix_fmt_name(pix_fmt);

Definition at line 615 of file fftools_cmdutils.h.

◆ GET_SAMPLE_FMT_NAME

#define GET_SAMPLE_FMT_NAME ( sample_fmt ) const char *name = av_get_sample_fmt_name(sample_fmt)

Definition at line 621 of file fftools_cmdutils.h.

◆ GET_SAMPLE_RATE_NAME

#define GET_SAMPLE_RATE_NAME ( rate )

Value:

char name[16];\

snprintf(name, sizeof(name), "%d", rate);

Definition at line 624 of file fftools_cmdutils.h.

◆ GROW_ARRAY

#define GROW_ARRAY	(	array,
		nb_elems
	)	array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)

Definition at line 612 of file fftools_cmdutils.h.

◆ HAS_ARG

#define HAS_ARG 0x0001

Definition at line 193 of file fftools_cmdutils.h.

◆ media_type_string

#define media_type_string av_get_media_type_string

Definition at line 610 of file fftools_cmdutils.h.

◆ OPT_AUDIO

#define OPT_AUDIO 0x0020

Definition at line 198 of file fftools_cmdutils.h.

◆ OPT_BOOL

#define OPT_BOOL 0x0002

Definition at line 194 of file fftools_cmdutils.h.

◆ OPT_DATA

#define OPT_DATA 0x1000

Definition at line 204 of file fftools_cmdutils.h.

◆ OPT_DOUBLE

#define OPT_DOUBLE 0x20000

Definition at line 209 of file fftools_cmdutils.h.

◆ OPT_EXIT

#define OPT_EXIT 0x0800

Definition at line 203 of file fftools_cmdutils.h.

◆ OPT_EXPERT

#define OPT_EXPERT 0x0004

Definition at line 195 of file fftools_cmdutils.h.

◆ OPT_FLOAT

#define OPT_FLOAT 0x0100

Definition at line 200 of file fftools_cmdutils.h.

◆ OPT_INPUT

#define OPT_INPUT 0x40000

Definition at line 210 of file fftools_cmdutils.h.

◆ OPT_INT

#define OPT_INT 0x0080

Definition at line 199 of file fftools_cmdutils.h.

◆ OPT_INT64

#define OPT_INT64 0x0400

Definition at line 202 of file fftools_cmdutils.h.

◆ OPT_OFFSET

#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */

Definition at line 206 of file fftools_cmdutils.h.

◆ OPT_OUTPUT

#define OPT_OUTPUT 0x80000

Definition at line 211 of file fftools_cmdutils.h.

◆ OPT_PERFILE

#define OPT_PERFILE

Value:

0x2000 /* the option is per-file (currently ffmpeg-only).

implied by OPT_OFFSET or OPT_SPEC */

Definition at line 205 of file fftools_cmdutils.h.

◆ OPT_SPEC

#define OPT_SPEC

Value:

                                   0x8000       /* option is to be stored in an array of SpecifierOpt.
                                   Implies OPT_OFFSET. Next element after the offset is
                                   an int containing element count in the array. */

Definition at line 207 of file fftools_cmdutils.h.

◆ OPT_STRING

#define OPT_STRING 0x0008

Definition at line 196 of file fftools_cmdutils.h.

◆ OPT_SUBTITLE

#define OPT_SUBTITLE 0x0200

Definition at line 201 of file fftools_cmdutils.h.

◆ OPT_TIME

#define OPT_TIME 0x10000

Definition at line 208 of file fftools_cmdutils.h.

◆ OPT_VIDEO

#define OPT_VIDEO 0x0010

Definition at line 197 of file fftools_cmdutils.h.

Typedef Documentation

◆ Option

typedef struct Option Option

An option extracted from the commandline. Cannot use AVDictionary because of options like -map which can be used multiple times.

◆ OptionDef

typedef struct OptionDef OptionDef

◆ OptionGroup

typedef struct OptionGroup OptionGroup

◆ OptionGroupDef

typedef struct OptionGroupDef OptionGroupDef

◆ OptionGroupList

typedef struct OptionGroupList OptionGroupList

A list of option groups that all have the same group type (e.g. input files or output files)

◆ OptionParseContext

typedef struct OptionParseContext OptionParseContext

◆ SpecifierOpt

typedef struct SpecifierOpt SpecifierOpt

Function Documentation

◆ check_stream_specifier()

int check_stream_specifier	(	AVFormatContext *	s,
		AVStream *	st,
		const char *	spec
	)

Check if the given stream matches a stream specifier.

Parameters

s	Corresponding format context.
st	Stream from s to be checked.
spec	A stream specifier of the [v\|a\|s\|d]:[<stream index>] form.

Returns: 1 if the stream matches, 0 if it doesn't, <0 on error

Definition at line 2148 of file fftools_cmdutils.c.

◆ exit_program()

void exit_program ( int ret )

Wraps exit with a program-specific cleanup routine.

Definition at line 160 of file fftools_cmdutils.c.

◆ filter_codec_opts()

AVDictionary * filter_codec_opts	(	AVDictionary *	opts,
		enum AVCodecID	codec_id,
		AVFormatContext *	s,
		AVStream *	st,
		const AVCodec *	codec
	)

Filter out options for given codec.

Create a new options dictionary containing only the options from opts which apply to the codec with ID codec_id.

Parameters

opts	dictionary to place options in
codec_id	ID of the codec that should be filtered for
s	Corresponding format context.
st	A stream from s for which the options should be filtered.
codec	The particular codec for which the options should be filtered. If null, the default one is looked up according to the codec id.

Returns: a pointer to the created dictionary

Definition at line 2156 of file fftools_cmdutils.c.

◆ get_preset_file()

FILE * get_preset_file	(	char *	filename,
		size_t	filename_size,
		const char *	preset_name,
		int	is_path,
		const char *	codec_name
	)

Get a file corresponding to a preset file.

If is_path is non-zero, look for the file in the path preset_name. Otherwise search for a file named arg.ffpreset in the directories $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined at configuration time or in a "ffpresets" folder along the executable on win32, in that order. If no such file is found and codec_name is defined, then search for a file named codec_name-preset_name.avpreset in the above-mentioned directories.

Parameters

filename	buffer where the name of the found filename is written
filename_size	size in bytes of the filename buffer
preset_name	name of the preset to search
is_path	tell if preset_name is a filename path
codec_name	name of the codec for which to look for the preset, may be NULL

Definition at line 2098 of file fftools_cmdutils.c.

◆ get_rotation()

double get_rotation ( AVStream * st )

Definition at line 2253 of file fftools_cmdutils.c.

◆ grow_array()

void * grow_array	(	void *	array,
		int	elem_size,
		int *	size,
		int	new_size
	)

Realloc array to hold new_size elements of elem_size. Calls exit() on failure.

Parameters

array	array to reallocate
elem_size	size in bytes of each element
size	new element count will be written here
new_size	number of elements to place in reallocated array

Returns: reallocated array

Definition at line 2234 of file fftools_cmdutils.c.

◆ init_dynload()

void init_dynload ( void )

Initialize dynamic library loading

Definition at line 144 of file fftools_cmdutils.c.

◆ init_opts()

void init_opts ( void )

Initialize the cmdutils option system, in particular allocate the *_opts contexts.

◆ locate_option()

int locate_option	(	int	argc,
		char **	argv,
		const OptionDef *	options,
		const char *	optname
	)

Return index of option opt in argv or 0 if not found.

Definition at line 477 of file fftools_cmdutils.c.

◆ log_callback_help()

void log_callback_help	(	void *	ptr,
		int	level,
		const char *	fmt,
		va_list	vl
	)

Trivial log callback. Only suitable for opt_help and similar since it lacks prefix handling.

◆ opt_codec_debug()

int opt_codec_debug	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

◆ opt_cpucount()

int opt_cpucount	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Override the cpucount.

Definition at line 893 of file fftools_cmdutils.c.

◆ opt_cpuflags()

int opt_cpuflags	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Override the cpuflags.

Definition at line 881 of file fftools_cmdutils.c.

◆ opt_default()

int opt_default	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Fallback for options that are not explicitly handled, these will be parsed through AVOptions.

Definition at line 575 of file fftools_cmdutils.c.

◆ opt_loglevel()

int opt_loglevel	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Set the libav* libraries log level.

Definition at line 919 of file fftools_cmdutils.c.

◆ opt_max_alloc()

int opt_max_alloc	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Definition at line 1107 of file fftools_cmdutils.c.

◆ opt_report()

int opt_report	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Definition at line 1102 of file fftools_cmdutils.c.

◆ opt_timelimit()

int opt_timelimit	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Limit the execution time.

Definition at line 1121 of file fftools_cmdutils.c.

◆ parse_loglevel()

void parse_loglevel	(	int	argc,
		char **	argv,
		const OptionDef *	options
	)

Find the '-loglevel' option in the command line args and apply it.

Definition at line 536 of file fftools_cmdutils.c.

◆ parse_number_or_die()

double parse_number_or_die	(	const char *	context,
		const char *	numstr,
		int	type,
		double	min,
		double	max
	)

Parse a string and return its corresponding value as a double. Exit from the application if the string cannot be correctly parsed or the corresponding value is invalid.

Parameters

context	the context of the value to be set (e.g. the corresponding command line option name)
numstr	the string to be parsed
type	the type (OPT_INT64 or OPT_FLOAT) as which the string should be parsed
min	the minimum valid accepted value
max	the maximum valid accepted value

Definition at line 171 of file fftools_cmdutils.c.

◆ parse_optgroup()

int parse_optgroup	(	void *	optctx,
		OptionGroup *	g
	)

Parse an options group and write results into optctx.

Parameters

optctx	an app-specific options context. NULL for global options group
g	option group

Definition at line 444 of file fftools_cmdutils.c.

◆ parse_option()

int parse_option	(	void *	optctx,
		const char *	opt,
		const char *	arg,
		const OptionDef *	options
	)

Parse one given option.

Returns: on success 1 if arg was consumed, 0 otherwise; negative number on error

Definition at line 376 of file fftools_cmdutils.c.

◆ parse_options()

void parse_options	(	void *	optctx,
		int	argc,
		char **	argv,
		const OptionDef *	options,
		void()(void optctx, const char *)	parse_arg_function
	)

Parse the command line arguments.

Parameters

optctx	an opaque options context
argc	number of command line arguments
argv	values of command line arguments
options	Array with the definitions required to interpret every option of the form: -option_name [argument]
parse_arg_function	Name of the function called to process every argument without a leading option name flag. NULL if such arguments do not have to be processed.

◆ parse_time_or_die()

int64_t parse_time_or_die	(	const char *	context,
		const char *	timestr,
		int	is_duration
	)

Parse a string specifying a time and return its corresponding value as a number of microseconds. Exit from the application if the string cannot be correctly parsed.

Parameters

context	the context of the value to be set (e.g. the corresponding command line option name)
timestr	the string to be parsed
is_duration	a flag which tells how to interpret timestr, if not zero timestr is interpreted as a duration, otherwise as a date

See also: av_parse_time()

Definition at line 192 of file fftools_cmdutils.c.

◆ print_error()

void print_error	(	const char *	filename,
		int	err
	)

Print an error message to stderr, indicating filename and a human readable description of the error code err.

If strerror_r() is not available the use of this function in a multithreaded application may be unsafe.

See also: av_strerror()

Definition at line 1134 of file fftools_cmdutils.c.

◆ read_yesno()

int read_yesno ( void )

Return a positive value if a line read from standard input starts with [yY], otherwise return 0.

Definition at line 2087 of file fftools_cmdutils.c.

◆ register_exit()

void register_exit ( void(*)(int ret) cb )

Register a program-specific cleanup routine.

Definition at line 155 of file fftools_cmdutils.c.

◆ setup_find_stream_info_opts()

AVDictionary ** setup_find_stream_info_opts	(	AVFormatContext *	s,
		AVDictionary *	codec_opts
	)

Setup AVCodecContext options for avformat_find_stream_info().

Create an array of dictionaries, one dictionary for each stream contained in s. Each dictionary will contain the options from codec_opts which can be applied to the corresponding stream codec context.

Returns: pointer to the created array of dictionaries, NULL if it cannot be created

Definition at line 2214 of file fftools_cmdutils.c.

◆ show_banner()

void show_banner	(	int	argc,
		char **	argv,
		const OptionDef *	options
	)

Print the program banner to stderr. The banner contents depend on the current version of the repository and of the libav* libraries used by the program.

Definition at line 1231 of file fftools_cmdutils.c.

◆ show_bsfs()

int show_bsfs	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the bit stream filters supported by the program. This option processing function does not utilize the arguments.

Definition at line 1703 of file fftools_cmdutils.c.

◆ show_buildconf()

int show_buildconf	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print the build configuration of the program to stdout. The contents depend on the definition of FFMPEG_CONFIGURATION. This option processing function does not utilize the arguments.

Definition at line 1250 of file fftools_cmdutils.c.

◆ show_codecs()

int show_codecs	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the codecs supported by the program. This option processing function does not utilize the arguments.

Definition at line 1596 of file fftools_cmdutils.c.

◆ show_colors()

int show_colors	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the color names and values recognized by the program.

Definition at line 1777 of file fftools_cmdutils.c.

◆ show_decoders()

int show_decoders	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the decoders supported by the program.

Definition at line 1691 of file fftools_cmdutils.c.

◆ show_demuxers()

int show_demuxers	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the demuxer supported by the program (including devices). This option processing function does not utilize the arguments.

Definition at line 1411 of file fftools_cmdutils.c.

◆ show_devices()

int show_devices	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the devices supported by the program. This option processing function does not utilize the arguments.

Definition at line 1416 of file fftools_cmdutils.c.

◆ show_encoders()

int show_encoders	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the encoders supported by the program.

Definition at line 1697 of file fftools_cmdutils.c.

◆ show_filters()

int show_filters	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the filters supported by the program. This option processing function does not utilize the arguments.

Definition at line 1730 of file fftools_cmdutils.c.

◆ show_formats()

int show_formats	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the formats supported by the program (including devices). This option processing function does not utilize the arguments.

Definition at line 1401 of file fftools_cmdutils.c.

◆ show_help()

int show_help	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Generic -h handler common to all fftools.

Definition at line 2042 of file fftools_cmdutils.c.

◆ show_help_children()

void show_help_children	(	const AVClass *	class,
		int	flags
	)

Show help for all options with given flags in class and all its children.

Definition at line 233 of file fftools_cmdutils.c.

◆ show_help_default_ffmpeg()

void show_help_default_ffmpeg	(	const char *	opt,
		const char *	arg
	)

Per-fftool specific help handler. Implemented in each fftool, called by show_help().

Definition at line 3296 of file fftools_ffmpeg_opt.c.

◆ show_help_default_ffprobe()

void show_help_default_ffprobe	(	const char *	opt,
		const char *	arg
	)

Definition at line 3422 of file fftools_ffprobe.c.

◆ show_help_options()

void show_help_options	(	const OptionDef *	options,
		const char *	msg,
		int	req_flags,
		int	rej_flags,
		int	alt_flags
	)

Print help for all options matching specified flags.

Parameters

options	a list of options
msg	title of this group. Only printed if at least one option matches.
req_flags	print only options which have all those flags set.
rej_flags	don't print options which have any of those flags set.
alt_flags	print only options that have at least one of those flags set

Definition at line 204 of file fftools_cmdutils.c.

◆ show_layouts()

int show_layouts	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the standard channel layouts supported by the program. This option processing function does not utilize the arguments.

Definition at line 1824 of file fftools_cmdutils.c.

◆ show_license()

int show_license	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print the license of the program to stdout. The license depends on the license of the libraries compiled into the program. This option processing function does not utilize the arguments.

Definition at line 1257 of file fftools_cmdutils.c.

◆ show_muxers()

int show_muxers	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the muxers supported by the program (including devices). This option processing function does not utilize the arguments.

Definition at line 1406 of file fftools_cmdutils.c.

◆ show_pix_fmts()

int show_pix_fmts	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the pixel formats supported by the program. This option processing function does not utilize the arguments.

Definition at line 1791 of file fftools_cmdutils.c.

◆ show_protocols()

int show_protocols	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the protocols supported by the program. This option processing function does not utilize the arguments.

Definition at line 1715 of file fftools_cmdutils.c.

◆ show_sample_fmts()

int show_sample_fmts	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print a listing containing all the sample formats supported by the program.

Definition at line 1853 of file fftools_cmdutils.c.

◆ show_version()

int show_version	(	void *	optctx,
		const char *	opt,
		const char *	arg
	)

Print the version of the program to stdout. The version message depends on the current versions of the repository and of the libav* libraries. This option processing function does not utilize the arguments.

Definition at line 1242 of file fftools_cmdutils.c.

◆ split_commandline()

int split_commandline	(	OptionParseContext *	octx,
		int	argc,
		char *	argv[],
		const OptionDef *	options,
		const OptionGroupDef *	groups,
		int	nb_groups
	)

Split the commandline into an intermediate form convenient for further processing.

The commandline is assumed to be composed of options which either belong to a group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global (everything else).

A group (defined by an OptionGroupDef struct) is a sequence of options terminated by either a group separator option (e.g. -i) or a parameter that is not an option (doesn't start with -). A group without a separator option must always be first in the supplied groups list.

All options within the same group are stored in one OptionGroup struct in an OptionGroupList, all groups with the same group definition are stored in one OptionGroupList in OptionParseContext.groups. The order of group lists is the same as the order of group definitions.

Definition at line 770 of file fftools_cmdutils.c.

◆ uninit_opts()

void uninit_opts ( void )

Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents.

Definition at line 115 of file fftools_cmdutils.c.

◆ uninit_parse_context()

void uninit_parse_context ( OptionParseContext * octx )

Free all allocated memory in an OptionParseContext.

Definition at line 744 of file fftools_cmdutils.c.

Variable Documentation

◆ avcodec_opts

__thread AVCodecContext* avcodec_opts[AVMEDIA_TYPE_NB]

extern

◆ avformat_opts

__thread AVFormatContext* avformat_opts

extern

◆ codec_opts

__thread AVDictionary * codec_opts

Definition at line 77 of file fftools_cmdutils.h.

◆ find_stream_info

__thread int find_stream_info

extern

Definition at line 203 of file fftools_ffmpeg_opt.c.

◆ format_opts

__thread AVDictionary* format_opts

extern

Definition at line 102 of file fftools_cmdutils.c.

◆ hide_banner

__thread int hide_banner

extern

Definition at line 106 of file fftools_cmdutils.c.

◆ program_birth_year

__thread int program_birth_year

extern

program birth year, defined by the program for show_banner()

Definition at line 98 of file fftools_cmdutils.c.

◆ program_name

__thread char* program_name

extern

program name, defined by the program for show_version().

Definition at line 97 of file fftools_cmdutils.c.

◆ resample_opts

__thread AVDictionary * resample_opts

Definition at line 77 of file fftools_cmdutils.h.

◆ swr_opts

__thread AVDictionary* swr_opts

extern

Definition at line 101 of file fftools_cmdutils.c.

◆ sws_dict

__thread AVDictionary* sws_dict

extern

Definition at line 100 of file fftools_cmdutils.c.

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ AV_LOG_STDERR

◆ GET_CH_LAYOUT_DESC

◆ GET_CH_LAYOUT_NAME

◆ GET_CODEC_NAME

◆ GET_PIX_FMT_NAME

◆ GET_SAMPLE_FMT_NAME

◆ GET_SAMPLE_RATE_NAME

◆ GROW_ARRAY

◆ HAS_ARG

◆ media_type_string

◆ OPT_AUDIO

◆ OPT_BOOL

◆ OPT_DATA

◆ OPT_DOUBLE

◆ OPT_EXIT

◆ OPT_EXPERT

◆ OPT_FLOAT

◆ OPT_INPUT

◆ OPT_INT

◆ OPT_INT64

◆ OPT_OFFSET

◆ OPT_OUTPUT

◆ OPT_PERFILE

◆ OPT_SPEC

◆ OPT_STRING

◆ OPT_SUBTITLE

◆ OPT_TIME

◆ OPT_VIDEO

Typedef Documentation

◆ Option

◆ OptionDef

◆ OptionGroup

◆ OptionGroupDef

◆ OptionGroupList

◆ OptionParseContext

◆ SpecifierOpt

Function Documentation

◆ check_stream_specifier()

◆ exit_program()

◆ filter_codec_opts()

◆ get_preset_file()

◆ get_rotation()

◆ grow_array()

◆ init_dynload()

◆ init_opts()

◆ locate_option()

◆ log_callback_help()

◆ opt_codec_debug()

◆ opt_cpucount()

◆ opt_cpuflags()

◆ opt_default()

◆ opt_loglevel()

◆ opt_max_alloc()

◆ opt_report()

◆ opt_timelimit()

◆ parse_loglevel()

◆ parse_number_or_die()

◆ parse_optgroup()

◆ parse_option()

◆ parse_options()

◆ parse_time_or_die()

◆ print_error()

◆ read_yesno()

◆ register_exit()

◆ setup_find_stream_info_opts()

◆ show_banner()

◆ show_bsfs()

◆ show_buildconf()

◆ show_codecs()

◆ show_colors()

◆ show_decoders()

◆ show_demuxers()

◆ show_devices()

◆ show_encoders()