cmdutils.c File Reference

#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <math.h>
#include "config.h"
#include "libavformat/avformat.h"
#include "libavfilter/avfilter.h"
#include "libavdevice/avdevice.h"
#include "libswscale/swscale.h"
#include "libpostproc/postprocess.h"
#include "libavutil/avstring.h"
#include "libavcodec/opt.h"
#include "cmdutils.h"
#include "version.h"

Go to the source code of this file.

Defines

#define PRINT_LIB_VERSION(outstream, libname, LIBNAME, indent)

Functions

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

Parses a string and returns its corresponding value as a double.

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

Parses a string specifying a time and returns its corresponding value as a number of microseconds.

void show_help_options (const OptionDef *options, const char *msg, int mask, int value)

static const OptionDef * find_option (const OptionDef *po, const char *name)

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

Parses the command line arguments.

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

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

void set_context_opts (void *ctx, void *opts_ctx, int flags)

void print_error (const char *filename, int err)

static void print_all_lib_versions (FILE *outstream, int indent)

void show_banner (void)

Prints the program banner to stderr.

void show_version (void)

Prints the version of the program to stdout.

void show_license (void)

Prints the license of the program to stdout.

void show_formats (void)

Prints a listing containing all the formats supported by the program.

Variables

const char ** opt_names

static int opt_name_count

AVCodecContext * avctx_opts [CODEC_TYPE_NB]

AVFormatContext * avformat_opts

struct SwsContext * sws_opts

const int this_year = 2012

Define Documentation

#define PRINT_LIB_VERSION	(	outstream,
		libname,
		LIBNAME,
		indent	)

Value:

version= libname##_version(); \
    fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", indent? "  " : "", #libname, \
            LIB##LIBNAME##_VERSION_MAJOR, LIB##LIBNAME##_VERSION_MINOR, LIB##LIBNAME##_VERSION_MICRO, \
            version >> 16, version >> 8 & 0xff, version & 0xff);

Definition at line 267 of file cmdutils.c.

Referenced by print_all_lib_versions().

Function Documentation

static const OptionDef* find_option	(	const OptionDef *	po,
		const char *	name
	)			`[static]`

Definition at line 106 of file cmdutils.c.

Referenced by parse_options().

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

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

Definition at line 175 of file cmdutils.c.

Referenced by opt_bitrate(), opt_preset(), and opt_target().

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

Parses a string and returns its corresponding value as a double.

Exits 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 commandline 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 55 of file cmdutils.c.

Referenced by opt_audio_channels(), opt_audio_rate(), opt_debug(), opt_height(), opt_me_threshold(), opt_thread_count(), opt_verbose(), opt_vismv(), opt_width(), and parse_options().

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

Parses the command line arguments.

Parameters:

	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.

Definition at line 115 of file cmdutils.c.

Referenced by main().

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

Parses a string specifying a time and returns its corresponding value as a number of microseconds.

Exits from the application if the string cannot be correctly parsed.

Parameters:

	context	the context of the value to be set (e.g. the corresponding commandline 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:: parse_date()

Definition at line 72 of file cmdutils.c.

Referenced by opt_input_ts_offset(), opt_rec_timestamp(), opt_recording_time(), opt_seek(), and opt_start_time().

static void print_all_lib_versions	(	FILE *	outstream,
		int	indent
	)			`[static]`

Definition at line 273 of file cmdutils.c.

Referenced by show_banner(), and show_version().

void print_error	(	const char *	filename,
		int	err
	)

Definition at line 229 of file cmdutils.c.

Referenced by decode_thread(), opt_input_file(), opt_output_file(), and write_frame().

void set_context_opts	(	void *	ctx,
		void *	opts_ctx,
		int	flags
	)

Definition at line 216 of file cmdutils.c.

Referenced by new_audio_stream(), new_subtitle_stream(), new_video_stream(), opt_input_file(), opt_output_file(), and stream_component_open().

void show_banner ( void )

Prints 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 291 of file cmdutils.c.

Referenced by main().

void show_formats ( void )

Prints a listing containing all the formats supported by the program.

Definition at line 379 of file cmdutils.c.

void show_help_options	(	const OptionDef *	options,
		const char *	msg,
		int	mask,
		int	value
	)

Definition at line 83 of file cmdutils.c.

Referenced by opt_show_help(), and show_help().

void show_license ( void )

Prints the license of the program to stdout.

The license depends on the license of the libraries compiled into the program.

Definition at line 310 of file cmdutils.c.

void show_version ( void )

Prints the version of the program to stdout.

The version message depends on the current versions of the repository and of the libav* libraries.

Definition at line 305 of file cmdutils.c.

Variable Documentation

AVCodecContext* avctx_opts[CODEC_TYPE_NB]

Definition at line 49 of file cmdutils.c.

Referenced by do_video_out(), main(), new_audio_stream(), new_subtitle_stream(), new_video_stream(), opt_bitrate(), opt_input_file(), show_help(), and stream_component_open().

AVFormatContext* avformat_opts

Definition at line 50 of file cmdutils.c.

Referenced by main(), opt_input_file(), opt_output_file(), and show_help().

int opt_name_count [static]

Definition at line 48 of file cmdutils.c.

Referenced by opt_default(), and set_context_opts().

const char** opt_names

Definition at line 47 of file cmdutils.c.

Referenced by av_exit(), opt_default(), and set_context_opts().

struct SwsContext* sws_opts

Definition at line 51 of file cmdutils.c.

Referenced by av_encode(), main(), queue_picture(), and show_help().

const int this_year = 2012

Definition at line 53 of file cmdutils.c.

Referenced by show_banner().


Defines
#define	PRINT_LIB_VERSION(outstream, libname, LIBNAME, indent)
Functions
double	parse_number_or_die (const char context, const char numstr, int type, double min, double max)
	Parses a string and returns its corresponding value as a double.
int64_t	parse_time_or_die (const char context, const char timestr, int is_duration)
	Parses a string specifying a time and returns its corresponding value as a number of microseconds.
void	show_help_options (const OptionDef options, const char msg, int mask, int value)
static const OptionDef *	find_option (const OptionDef po, const char name)
void	parse_options (int argc, char *argv, const OptionDef options, void(parse_arg_function)(const char ))
	Parses the command line arguments.
int	opt_default (const char opt, const char arg)
	Fallback for options that are not explicitly handled, these will be parsed through AVOptions.
void	set_context_opts (void ctx, void opts_ctx, int flags)
void	print_error (const char *filename, int err)
static void	print_all_lib_versions (FILE *outstream, int indent)
void	show_banner (void)
	Prints the program banner to stderr.
void	show_version (void)
	Prints the version of the program to stdout.
void	show_license (void)
	Prints the license of the program to stdout.
void	show_formats (void)
	Prints a listing containing all the formats supported by the program.
Variables
const char **	opt_names
static int	opt_name_count
AVCodecContext *	avctx_opts [CODEC_TYPE_NB]
AVFormatContext *	avformat_opts
struct SwsContext *	sws_opts
const int	this_year = 2012