| 2197 | } |
| 2198 | |
| 2199 | int av_opt_get_array(void *obj, const char *name, int search_flags, |
| 2200 | unsigned int start_elem, unsigned int nb_elems, |
| 2201 | enum AVOptionType out_type, void *out_val) |
| 2202 | { |
| 2203 | const size_t elem_size_out = opt_type_desc[TYPE_BASE(out_type)].size; |
| 2204 | |
| 2205 | const AVOption *o; |
| 2206 | void *target_obj; |
| 2207 | |
| 2208 | const void *parray; |
| 2209 | unsigned array_size; |
| 2210 | |
| 2211 | int ret; |
| 2212 | |
| 2213 | o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); |
| 2214 | if (!o || !target_obj) |
| 2215 | return AVERROR_OPTION_NOT_FOUND; |
| 2216 | if (!(o->type & AV_OPT_TYPE_FLAG_ARRAY) || |
| 2217 | (out_type & AV_OPT_TYPE_FLAG_ARRAY)) |
| 2218 | return AVERROR(EINVAL); |
| 2219 | |
| 2220 | parray = (uint8_t *)target_obj + o->offset; |
| 2221 | array_size = *opt_array_pcount(parray); |
| 2222 | |
| 2223 | if (start_elem >= array_size || |
| 2224 | array_size - start_elem < nb_elems) |
| 2225 | return AVERROR(EINVAL); |
| 2226 | |
| 2227 | for (unsigned i = 0; i < nb_elems; i++) { |
| 2228 | const void *src = opt_array_pelem(o, *(void**)parray, start_elem + i); |
| 2229 | void *dst = (uint8_t*)out_val + i * elem_size_out; |
| 2230 | |
| 2231 | if (out_type == TYPE_BASE(o->type)) { |
| 2232 | ret = opt_copy_elem(obj, out_type, dst, src); |
| 2233 | if (ret < 0) |
| 2234 | goto fail; |
| 2235 | } else if (out_type == AV_OPT_TYPE_STRING) { |
| 2236 | uint8_t buf[128], *out = buf; |
| 2237 | |
| 2238 | ret = opt_get_elem(o, &out, sizeof(buf), src, search_flags); |
| 2239 | if (ret < 0) |
| 2240 | goto fail; |
| 2241 | |
| 2242 | if (out == buf) { |
| 2243 | out = av_strdup(buf); |
| 2244 | if (!out) { |
| 2245 | ret = AVERROR(ENOMEM); |
| 2246 | goto fail; |
| 2247 | } |
| 2248 | } |
| 2249 | |
| 2250 | *(uint8_t**)dst = out; |
| 2251 | } else if (out_type == AV_OPT_TYPE_INT64 || |
| 2252 | out_type == AV_OPT_TYPE_DOUBLE || |
| 2253 | out_type == AV_OPT_TYPE_RATIONAL) { |
| 2254 | double num = 1.0; |
| 2255 | int den = 1; |
| 2256 | int64_t intnum = 1; |