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cmdutils: allow storing per-stream/chapter/.... options in a generic way

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This commit is contained in:
Anton Khirnov 2011-08-29 07:54:56 +02:00
parent 2f8e586df1
commit 6361c5e1e6
2 changed files with 25 additions and 1 deletions
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13
cmdutils.c
View File

@ -207,6 +207,7 @@ int parse_option(void *optctx, const char *opt, const char *arg, const OptionDef
{
const OptionDef *po;
int bool_val = 1;
int *dstcount;
void *dst;
po = find_option(options, opt);
@ -231,7 +232,17 @@ unknown_opt:
/* new-style options contain an offset into optctx, old-style address of
* a global var*/
dst = po->flags & (OPT_OFFSET) ? (uint8_t*)optctx + po->u.off : po->u.dst_ptr;
dst = po->flags & (OPT_OFFSET|OPT_SPEC) ? (uint8_t*)optctx + po->u.off : po->u.dst_ptr;
if (po->flags & OPT_SPEC) {
SpecifierOpt **so = dst;
char *p = strchr(opt, ':');
dstcount = (int*)(so + 1);
*so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
(*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
dst = &(*so)[*dstcount - 1].u;
}
if (po->flags & OPT_STRING) {
char *str;

13
cmdutils.h
View File

@ -108,6 +108,16 @@ double parse_number_or_die(const char *context, const char *numstr, int type, do
*/
int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
typedef struct SpecifierOpt {
char *specifier; /**< stream/chapter/program/... specifier */
union {
uint8_t *str;
int i;
int64_t i64;
float f;
} u;
} SpecifierOpt;
typedef struct {
const char *name;
int flags;
@ -126,6 +136,9 @@ typedef struct {
#define OPT_DATA 0x1000
#define OPT_FUNC2 0x2000
#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */
#define OPT_SPEC 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. */
union {
void *dst_ptr;
int (*func_arg)(const char *, const char *);