*/
/**
- * @file opt.c
+ * @file libavcodec/opt.c
* AVOptions
* @author Michael Niedermayer <michaelni@gmx.at>
*/
else return (*(AVClass**)obj)->option;
}
-static const AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){
+static int av_set_number2(void *obj, const char *name, double num, int den, int64_t intnum, const AVOption **o_out){
const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
void *dst;
+ if(o_out)
+ *o_out= o;
if(!o || o->offset<=0)
- return NULL;
+ return AVERROR(ENOENT);
if(o->max*den < num*intnum || o->min*den > num*intnum) {
- av_log(NULL, AV_LOG_ERROR, "Value %lf for parameter '%s' out of range\n", num, name);
- return NULL;
+ av_log(obj, AV_LOG_ERROR, "Value %lf for parameter '%s' out of range\n", num, name);
+ return AVERROR(ERANGE);
}
dst= ((uint8_t*)obj) + o->offset;
else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
break;
default:
- return NULL;
+ return AVERROR(EINVAL);
}
- return o;
+ return 0;
+}
+
+static const AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){
+ const AVOption *o = NULL;
+ if (av_set_number2(obj, name, num, den, intnum, &o) < 0)
+ return NULL;
+ else
+ return o;
}
static const double const_values[]={
return -1;
}
-const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc){
+int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out){
+ int ret;
const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
- if(!o || !val || o->offset<=0)
- return NULL;
+ if (o_out)
+ *o_out = o;
+ if(!o) {
+ av_log(obj, AV_LOG_ERROR, "Unknown option '%s'\n", name);
+ return AVERROR(ENOENT);
+ }
+ if(!val || o->offset<=0)
+ return AVERROR(EINVAL);
+
if(o->type == FF_OPT_TYPE_BINARY){
uint8_t **dst = (uint8_t **)(((uint8_t*)obj) + o->offset);
int *lendst = (int *)(dst + 1);
int len = strlen(val);
av_freep(dst);
*lendst = 0;
- if (len & 1) return NULL;
+ if (len & 1) return AVERROR(EINVAL);
len /= 2;
ptr = bin = av_malloc(len);
while (*val) {
int b = hexchar2int(*val++);
if (a < 0 || b < 0) {
av_free(bin);
- return NULL;
+ return AVERROR(EINVAL);
}
*ptr++ = (a << 4) | b;
}
*dst = bin;
*lendst = len;
- return o;
+ return 0;
}
if(o->type != FF_OPT_TYPE_STRING){
int notfirst=0;
else if(!strcmp(buf, "all" )) d= ~0;
else {
if (error)
- av_log(NULL, AV_LOG_ERROR, "Unable to parse option value \"%s\": %s\n", val, error);
- return NULL;
+ av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\": %s\n", val, error);
+ return AVERROR(EINVAL);
}
}
if(o->type == FF_OPT_TYPE_FLAGS){
else if(cmd=='-') d= notfirst*av_get_double(obj, name, NULL) - d;
}
- if (!av_set_number(obj, name, d, 1, 1))
- return NULL;
+ if ((ret = av_set_number2(obj, name, d, 1, 1, o_out)) < 0)
+ return ret;
val+= i;
if(!*val)
- return o;
+ return 0;
notfirst=1;
}
- return NULL;
+ return AVERROR(EINVAL);
}
if(alloc){
}
memcpy(((uint8_t*)obj) + o->offset, &val, sizeof(val));
+ return 0;
+}
+
+#if LIBAVCODEC_VERSION_MAJOR < 53
+const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc){
+ const AVOption *o;
+ if (av_set_string3(obj, name, val, alloc, &o) < 0)
+ return NULL;
return o;
}
const AVOption *av_set_string(void *obj, const char *name, const char *val){
- return av_set_string2(obj, name, val, 0);
+ const AVOption *o;
+ if (av_set_string3(obj, name, val, 0, &o) < 0)
+ return NULL;
+ return o;
}
+#endif
const AVOption *av_set_double(void *obj, const char *name, double n){
return av_set_number(obj, name, n, 1, 1);