#include "avutil.h"
#include "avstring.h"
#include "opt.h"
#include "eval.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) |
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. | |
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 34 of file opt.c.
Referenced by av_get_number(), av_get_string(), av_set_number2(), av_set_string3(), ffserver_opt_default(), and opt_default().
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 310 of file opt.c.
Referenced by av_set_string3(), do_video_out(), opt_bitrate(), queue_picture(), and transcode().
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 228 of file opt.c.
Referenced by set_context_opts().
void av_opt_set_defaults | ( | void * | s | ) |
Definition at line 452 of file opt.c.
Referenced by av_set_parameters(), avcodec_get_context_defaults3(), avcodec_open(), avformat_get_context_defaults(), 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 407 of file opt.c.
Referenced by av_opt_set_defaults(), avcodec_get_context_defaults2(), and init().
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 389 of file opt.c.
Referenced by av_opt_show(), and show_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 | |||
) |
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.
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 501 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 115 of file opt.c.
Referenced by av_set_string(), av_set_string2(), ffserver_opt_default(), opt_default(), 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 474 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 101 of file opt.c.
Referenced by av_set_string3(), and ff_rate_control_init().
const double const_values[] [static] |
Initial value:
{ M_PI, M_E, FF_QP2LAMBDA, 0 }
Definition at line 94 of file opt.c.
Referenced by av_set_string3(), and get_qscale().