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json: add helper function to parse channel positions

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Use the helper instead of duplicating the same code.

Also add some helpers to parse a json array of uint32_t

Move some functions to convert between type name and id.
This commit is contained in:
Wim Taymans 2024-09-18 09:54:34 +02:00
parent 911a601b95
commit e2991f6398
34 changed files with 256 additions and 791 deletions
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18
spa/include/spa/utils/json.h
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@ -185,6 +185,24 @@ static inline int spa_json_begin_array(struct spa_json * iter, const char *data,
return spa_json_begin_container(iter, data, size, '[', false);
}
#define spa_json_make_str_array_unpack(maxlen,type,conv) \
{ \
struct spa_json iter; \
char v[maxlen]; \
uint32_t count = 0; \
if (spa_json_begin_array_relax(&iter, arr, arr_len) <= 0) \
return -EINVAL; \
while (spa_json_get_string(&iter, v, sizeof(v)) > 0 && count < max) \
values[count++] = conv(v); \
return count; \
}
static inline int spa_json_str_array_uint32(const char *arr, size_t arr_len,
uint32_t *values, size_t max)
{
spa_json_make_str_array_unpack(32,uint32_t, atoi);
}
/**
* \}
*/