#include "avutil.h"
#include "avstring.h"
#include "opt.h"
#include "eval.h"
#include "dict.h"
Go to the source code of this file.
Functions | |
const AVOption * | av_find_opt (void *v, const char *name, const char *unit, int mask, int flags) |
Look for an option in obj. | |
const AVOption * | av_next_option (void *obj, const AVOption *last) |
static int | av_set_number2 (void *obj, const char *name, double num, int den, int64_t intnum, const AVOption **o_out) |
static const AVOption * | av_set_number (void *obj, const char *name, double num, int den, int64_t intnum) |
static int | hexchar2int (char c) |
int | av_set_string3 (void *obj, const char *name, const char *val, int alloc, const AVOption **o_out) |
Set the field of obj with the given name to value. | |
const AVOption * | av_set_double (void *obj, const char *name, double n) |
const AVOption * | av_set_q (void *obj, const char *name, AVRational n) |
const AVOption * | av_set_int (void *obj, const char *name, int64_t n) |
const char * | av_get_string (void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len) |
static int | av_get_number (void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum) |
double | av_get_double (void *obj, const char *name, const AVOption **o_out) |
AVRational | av_get_q (void *obj, const char *name, const AVOption **o_out) |
int64_t | av_get_int (void *obj, const char *name, const AVOption **o_out) |
int | av_opt_flag_is_set (void *obj, const char *field_name, const char *flag_name) |
Check whether a particular flag is set in a flags field. | |
static void | opt_list (void *obj, void *av_log_obj, const char *unit, int req_flags, int rej_flags) |
int | av_opt_show2 (void *obj, void *av_log_obj, int req_flags, int rej_flags) |
Show the obj options. | |
void | av_opt_set_defaults2 (void *s, int mask, int flags) |
Set the values of the AVCodecContext or AVFormatContext structure. | |
void | av_opt_set_defaults (void *s) |
static int | parse_key_value_pair (void *ctx, const char **buf, const char *key_val_sep, const char *pairs_sep) |
Store the value in the field in ctx that is named like key. | |
int | av_set_options_string (void *ctx, const char *opts, const char *key_val_sep, const char *pairs_sep) |
Parse the key/value pairs list in opts. | |
void | av_opt_free (void *obj) |
Free all string and binary options in obj. | |
int | av_opt_set_dict (void *obj, AVDictionary **options) |
const AVOption * | av_opt_find (void *obj, const char *name, const char *unit, int opt_flags, int search_flags) |
Look for an option in an object. | |
Variables | |
static const double | const_values [] |
static const char *const | const_names [] |
Definition in file opt.c.
const AVOption* av_find_opt | ( | void * | obj, | |
const char * | name, | |||
const char * | unit, | |||
int | mask, | |||
int | flags | |||
) |
Look for an option in obj.
Look only for the options which have the flags set as specified in mask and flags (that is, for which it is the case that opt->flags & mask == flags).
[in] | obj | a pointer to a struct whose first element is a pointer to an AVClass |
[in] | name | the name of the option to look for |
[in] | unit | the unit of the option to look for, or any if NULL |
Definition at line 36 of file opt.c.
Referenced by av_opt_flag_is_set(), ff_rtp_chain_mux_open(), opt_default(), and set_context_opts().
double av_get_double | ( | void * | obj, | |
const char * | name, | |||
const AVOption ** | o_out | |||
) |
int64_t av_get_int | ( | void * | obj, | |
const char * | name, | |||
const AVOption ** | o_out | |||
) |
Definition at line 315 of file opt.c.
Referenced by av_opt_flag_is_set(), av_set_string3(), ff_rtp_chain_mux_open(), new_output_stream(), opt_bitrate(), and queue_picture().
static int av_get_number | ( | void * | obj, | |
const char * | name, | |||
const AVOption ** | o_out, | |||
double * | num, | |||
int * | den, | |||
int64_t * | intnum | |||
) | [static] |
AVRational av_get_q | ( | void * | obj, | |
const char * | name, | |||
const AVOption ** | o_out | |||
) |
const char* av_get_string | ( | void * | obj, | |
const char * | name, | |||
const AVOption ** | o_out, | |||
char * | buf, | |||
int | buf_len | |||
) |
buf | a buffer which is used for returning non string values as strings, can be NULL | |
buf_len | allocated length in bytes of buf |
Definition at line 230 of file opt.c.
Referenced by set_context_opts().
Definition at line 48 of file opt.c.
Referenced by av_find_opt(), av_opt_find(), av_opt_free(), av_opt_set_defaults2(), and opt_list().
const AVOption* av_opt_find | ( | void * | obj, | |
const char * | name, | |||
const char * | unit, | |||
int | opt_flags, | |||
int | search_flags | |||
) |
Look for an option in an object.
Consider only options which have all the specified flags set.
[in] | obj | A pointer to a struct whose first element is a pointer to an AVClass. |
[in] | name | The name of the option to look for. |
[in] | unit | When searching for named constants, name of the unit it belongs to. |
opt_flags | Find only options with all the specified flags set (AV_OPT_FLAG). | |
search_flags | A combination of AV_OPT_SEARCH_*. |
Definition at line 567 of file opt.c.
Referenced by av_get_number(), av_get_string(), av_set_number2(), av_set_string3(), ffserver_opt_default(), opt_default(), opt_default2(), and opt_find().
int av_opt_flag_is_set | ( | void * | obj, | |
const char * | field_name, | |||
const char * | flag_name | |||
) |
Check whether a particular flag is set in a flags field.
field_name | the name of the flag field option | |
flag_name | the name of the flag to check |
void av_opt_free | ( | void * | obj | ) |
Free all string and binary options in obj.
Definition at line 538 of file opt.c.
Referenced by av_write_trailer(), avcodec_close(), and avformat_free_context().
void av_opt_set_defaults | ( | void * | s | ) |
Definition at line 470 of file opt.c.
Referenced by alloc_priv_context(), av_set_parameters(), avcodec_get_context_defaults3(), avcodec_open2(), avformat_alloc_output_context2(), avformat_get_context_defaults(), avformat_open_input(), avformat_write_header(), sws_alloc_context(), and url_alloc_for_protocol().
void av_opt_set_defaults2 | ( | void * | s, | |
int | mask, | |||
int | flags | |||
) |
Set the values of the AVCodecContext or AVFormatContext structure.
They are set to the defaults specified in the according AVOption options array default_val field.
s | AVCodecContext or AVFormatContext for which the defaults will be set |
Definition at line 423 of file opt.c.
Referenced by av_opt_set_defaults(), avcodec_get_context_defaults2(), and init().
int av_opt_set_dict | ( | void * | obj, | |
AVDictionary ** | options | |||
) |
Definition at line 546 of file opt.c.
Referenced by avcodec_open2(), avformat_open_input(), and avformat_write_header().
int av_opt_show2 | ( | void * | obj, | |
void * | av_log_obj, | |||
int | req_flags, | |||
int | rej_flags | |||
) |
Show the obj options.
req_flags | requested flags for the options to show. Show only the options for which it is opt->flags & req_flags. | |
rej_flags | rejected flags for the options to show. Show only the options for which it is !(opt->flags & req_flags). | |
av_log_obj | log context to use for showing the options |
Definition at line 405 of file opt.c.
Referenced by opt_help().
const AVOption* av_set_double | ( | void * | obj, | |
const char * | name, | |||
double | n | |||
) |
const AVOption* av_set_int | ( | void * | obj, | |
const char * | name, | |||
int64_t | n | |||
) |
Definition at line 220 of file opt.c.
Referenced by av_opt_set_defaults2(), and ff_rtp_chain_mux_open().
static const AVOption* av_set_number | ( | void * | obj, | |
const char * | name, | |||
double | num, | |||
int | den, | |||
int64_t | intnum | |||
) | [static] |
static int av_set_number2 | ( | void * | obj, | |
const char * | name, | |||
double | num, | |||
int | den, | |||
int64_t | intnum, | |||
const AVOption ** | o_out | |||
) | [static] |
int av_set_options_string | ( | void * | ctx, | |
const char * | opts, | |||
const char * | key_val_sep, | |||
const char * | pairs_sep | |||
) |
Parse the key/value pairs list in opts.
For each key/value pair found, stores the value in the field in ctx that is named like the key. ctx must be an AVClass context, storing is done using AVOptions.
opts | options string to parse, may be NULL | |
key_val_sep | a 0-terminated list of characters used to separate key from value | |
pairs_sep | a 0-terminated list of characters used to separate two pairs from each other |
Definition at line 519 of file opt.c.
Referenced by init().
const AVOption* av_set_q | ( | void * | obj, | |
const char * | name, | |||
AVRational | n | |||
) |
int av_set_string3 | ( | void * | obj, | |
const char * | name, | |||
const char * | val, | |||
int | alloc, | |||
const AVOption ** | o_out | |||
) |
Set the field of obj with the given name to value.
[in] | obj | A struct whose first element is a pointer to an AVClass. |
[in] | name | the name of the field to set |
[in] | val | The value to set. If the field is not of a string type, then the given string is parsed. SI postfixes and some named scalars are supported. If the field is of a numeric type, it has to be a numeric or named scalar. Behavior with more than one scalar and +- infix operators is undefined. If the field is of a flags type, it has to be a sequence of numeric scalars or named flags separated by '+' or '-'. Prefixing a flag with '+' causes it to be set without affecting the other flags; similarly, '-' unsets a flag. |
[out] | o_out | if non-NULL put here a pointer to the AVOption found |
alloc | when 1 then the old value will be av_freed() and the new av_strduped() when 0 then no av_free() nor av_strdup() will be used |
Definition at line 117 of file opt.c.
Referenced by av_opt_set_defaults2(), av_opt_set_dict(), ffserver_opt_default(), open_input(), opt_default(), opt_default2(), parse_key_value_pair(), and set_context_opts().
static int hexchar2int | ( | char | c | ) | [static] |
static void opt_list | ( | void * | obj, | |
void * | av_log_obj, | |||
const char * | unit, | |||
int | req_flags, | |||
int | rej_flags | |||
) | [static] |
static int parse_key_value_pair | ( | void * | ctx, | |
const char ** | buf, | |||
const char * | key_val_sep, | |||
const char * | pairs_sep | |||
) | [static] |
Store the value in the field in ctx that is named like key.
ctx must be an AVClass context, storing is done using AVOptions.
buf | the string to parse, buf will be updated to point at the separator just after the parsed key/value pair | |
key_val_sep | a 0-terminated list of characters used to separate key from value | |
pairs_sep | a 0-terminated list of characters used to separate two pairs from each other |
Definition at line 492 of file opt.c.
Referenced by av_set_options_string().
const char* const const_names[] [static] |
Initial value:
{ "PI", "E", "QP2LAMBDA", 0 }
Definition at line 103 of file opt.c.
Referenced by av_set_string3(), config(), ff_rate_control_init(), and vf_open().
const double const_values[] [static] |
Initial value:
{ M_PI, M_E, FF_QP2LAMBDA, 0 }
Definition at line 96 of file opt.c.
Referenced by av_set_string3(), config(), get_qscale(), and put_image().