fftools_cmdutils.h File Reference

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Data Structures
struct	SpecifierOpt
struct	OptionDef
struct	Option
struct	OptionGroupDef
struct	OptionGroup
struct	OptionGroupList
struct	OptionParseContext

Macros
#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	CMDUTILS_COMMON_OPTIONS_AVDEVICE
#define	CMDUTILS_COMMON_OPTIONS
#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_default (void *optctx, const char *opt, const char *arg)
int	opt_loglevel (void *optctx, const char *opt, const char *arg)
int	opt_report (const char *opt)
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 (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, 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
const char	program_name []
const int	program_birth_year
AVCodecContext *	avcodec_opts [AVMEDIA_TYPE_NB]
AVFormatContext *	avformat_opts
AVDictionary *	sws_dict
AVDictionary *	swr_opts
AVDictionary *	format_opts
AVDictionary *	codec_opts
AVDictionary *	resample_opts
int	hide_banner

Macro Definition Documentation

CMDUTILS_COMMON_OPTIONS

#define CMDUTILS_COMMON_OPTIONS

Value:

{ "L",           OPT_EXIT,             { .func_arg = show_license },     "show license" },                          \
    { "h",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
    { "?",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
    { "help",        OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
    { "-help",       OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
    { "version",     OPT_EXIT,             { .func_arg = show_version },     "show version" },                          \
    { "buildconf",   OPT_EXIT,             { .func_arg = show_buildconf },   "show build configuration" },              \
    { "formats",     OPT_EXIT,             { .func_arg = show_formats },     "show available formats" },                \
    { "muxers",      OPT_EXIT,             { .func_arg = show_muxers },      "show available muxers" },                 \
    { "demuxers",    OPT_EXIT,             { .func_arg = show_demuxers },    "show available demuxers" },               \
    { "devices",     OPT_EXIT,             { .func_arg = show_devices },     "show available devices" },                \
    { "codecs",      OPT_EXIT,             { .func_arg = show_codecs },      "show available codecs" },                 \
    { "decoders",    OPT_EXIT,             { .func_arg = show_decoders },    "show available decoders" },               \
    { "encoders",    OPT_EXIT,             { .func_arg = show_encoders },    "show available encoders" },               \
    { "bsfs",        OPT_EXIT,             { .func_arg = show_bsfs },        "show available bit stream filters" },     \
    { "protocols",   OPT_EXIT,             { .func_arg = show_protocols },   "show available protocols" },              \
    { "filters",     OPT_EXIT,             { .func_arg = show_filters },     "show available filters" },                \
    { "pix_fmts",    OPT_EXIT,             { .func_arg = show_pix_fmts },    "show available pixel formats" },          \
    { "layouts",     OPT_EXIT,             { .func_arg = show_layouts },     "show standard channel layouts" },         \
    { "sample_fmts", OPT_EXIT,             { .func_arg = show_sample_fmts }, "show available audio sample formats" },   \
    { "colors",      OPT_EXIT,             { .func_arg = show_colors },      "show available color names" },            \
    { "loglevel",    HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },         \
    { "v",           HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },         \
    { "report",      0,                    { (void*)opt_report },            "generate a report" },                     \
    { "max_alloc",   HAS_ARG,              { .func_arg = opt_max_alloc },    "set maximum size of a single allocated block", "bytes" }, \
    { "cpuflags",    HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },     "force specific cpu flags", "flags" },     \
    { "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner},     "do not show program banner", "hide_banner" },          \
    CMDUTILS_COMMON_OPTIONS_AVDEVICE                                                                                    \

Definition at line 226 of file fftools_cmdutils.h.

CMDUTILS_COMMON_OPTIONS_AVDEVICE

#define CMDUTILS_COMMON_OPTIONS_AVDEVICE

Definition at line 223 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 653 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 649 of file fftools_cmdutils.h.

GET_CODEC_NAME

#define GET_CODEC_NAME

(

id

)

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

Definition at line 639 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 636 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 642 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 645 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 633 of file fftools_cmdutils.h.

HAS_ARG

#define HAS_ARG   0x0001

Definition at line 172 of file fftools_cmdutils.h.

media_type_string

#define media_type_string   av_get_media_type_string

Definition at line 631 of file fftools_cmdutils.h.

OPT_AUDIO

#define OPT_AUDIO   0x0020

Definition at line 177 of file fftools_cmdutils.h.

OPT_BOOL

#define OPT_BOOL   0x0002

Definition at line 173 of file fftools_cmdutils.h.

OPT_DATA

#define OPT_DATA   0x1000

Definition at line 183 of file fftools_cmdutils.h.

OPT_DOUBLE

#define OPT_DOUBLE   0x20000

Definition at line 191 of file fftools_cmdutils.h.

OPT_EXIT

#define OPT_EXIT   0x0800

Definition at line 182 of file fftools_cmdutils.h.

OPT_EXPERT

#define OPT_EXPERT   0x0004

Definition at line 174 of file fftools_cmdutils.h.

OPT_FLOAT

#define OPT_FLOAT   0x0100

Definition at line 179 of file fftools_cmdutils.h.

OPT_INPUT

#define OPT_INPUT   0x40000

Definition at line 192 of file fftools_cmdutils.h.

OPT_INT

#define OPT_INT   0x0080

Definition at line 178 of file fftools_cmdutils.h.

OPT_INT64

#define OPT_INT64   0x0400

Definition at line 181 of file fftools_cmdutils.h.

OPT_OFFSET

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

Definition at line 186 of file fftools_cmdutils.h.

OPT_OUTPUT

#define OPT_OUTPUT   0x80000

Definition at line 193 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 184 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 187 of file fftools_cmdutils.h.

OPT_STRING

#define OPT_STRING   0x0008

Definition at line 175 of file fftools_cmdutils.h.

OPT_SUBTITLE

#define OPT_SUBTITLE   0x0200

Definition at line 180 of file fftools_cmdutils.h.

OPT_TIME

#define OPT_TIME   0x10000

Definition at line 190 of file fftools_cmdutils.h.

OPT_VIDEO

#define OPT_VIDEO   0x0010

Definition at line 176 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 2053 of file fftools_cmdutils.c.

exit_program()

void exit_program

(

int

ret

)

Wraps exit with a program-specific cleanup routine.

Definition at line 134 of file fftools_cmdutils.c.

filter_codec_opts()

AVDictionary* filter_codec_opts	(	AVDictionary *	opts,
		enum AVCodecID	codec_id,
		AVFormatContext *	s,
		AVStream *	st,
		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 2061 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 2003 of file fftools_cmdutils.c.

get_rotation()

double get_rotation

(

AVStream *

st

)

Definition at line 2157 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 2138 of file fftools_cmdutils.c.

init_dynload()

void init_dynload

(

void

)

Initialize dynamic library loading

Definition at line 118 of file fftools_cmdutils.c.

init_opts()

void init_opts

(

void

)

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

Definition at line 104 of file fftools_cmdutils.c.

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 450 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_cpuflags()

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

Override the cpuflags.

Definition at line 867 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 548 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 879 of file fftools_cmdutils.c.

opt_max_alloc()

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

Definition at line 1062 of file fftools_cmdutils.c.

opt_report()

int opt_report

(

const char *

opt

)

Definition at line 1057 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 1076 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 509 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 145 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

Definition at line 417 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 351 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 166 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 1089 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 1992 of file fftools_cmdutils.c.

register_exit()

void register_exit

(

void(*)(int ret)

cb

)

Register a program-specific cleanup routine.

Definition at line 129 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 2118 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 1186 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 1639 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 1206 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 1534 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 1713 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 1627 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 1368 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 1373 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 1633 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 1666 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 1358 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 1956 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 207 of file fftools_cmdutils.c.

show_help_default()

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

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

Definition at line 3106 of file fftools_ffmpeg_opt.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 178 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 1760 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 1214 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 1363 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 1727 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 1651 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 1789 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 1197 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 756 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 109 of file fftools_cmdutils.c.

uninit_parse_context()

void uninit_parse_context

(

OptionParseContext *

octx

)

Free all allocated memory in an OptionParseContext.

Definition at line 730 of file fftools_cmdutils.c.

Variable Documentation

avcodec_opts

AVCodecContext* avcodec_opts[AVMEDIA_TYPE_NB]

avformat_opts

AVFormatContext* avformat_opts

codec_opts

AVDictionary * codec_opts

Definition at line 91 of file fftools_cmdutils.c.

format_opts

AVDictionary* format_opts

Definition at line 91 of file fftools_cmdutils.c.

hide_banner

int hide_banner

Definition at line 95 of file fftools_cmdutils.c.

program_birth_year

const int program_birth_year

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

Definition at line 130 of file fftools_ffmpeg.c.

program_name

const char program_name[]

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

Definition at line 129 of file fftools_ffmpeg.c.

resample_opts

AVDictionary * resample_opts

Definition at line 91 of file fftools_cmdutils.c.

swr_opts

AVDictionary* swr_opts

Definition at line 90 of file fftools_cmdutils.c.

sws_dict

AVDictionary* sws_dict

Definition at line 89 of file fftools_cmdutils.c.