* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
-
+
/**
* @file opt.c
* AVOptions
* @author Michael Niedermayer <michaelni@gmx.at>
*/
-
+
#include "avcodec.h"
#include "opt.h"
-
+
static double av_parse_num(const char *name, char **tail){
double d;
d= strtod(name, tail);
static AVOption *find_opt(void *v, const char *name, const char *unit){
AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass
AVOption *o= c->option;
-
+
for(;o && o->name; o++){
if(!strcmp(o->name, name) && (!unit || !strcmp(o->unit, unit)) )
return o;
static AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){
AVOption *o= find_opt(obj, name, NULL);
void *dst;
- if(!o || o->offset<=0)
+ if(!o || o->offset<=0)
return NULL;
-
+
if(o->max*den < num*intnum || o->min*den > num*intnum)
return NULL;
-
+
dst= ((uint8_t*)obj) + o->offset;
switch(o->type){
- case FF_OPT_TYPE_FLAGS:
+ case FF_OPT_TYPE_FLAGS:
case FF_OPT_TYPE_INT: *(int *)dst= lrintf(num/den)*intnum; break;
case FF_OPT_TYPE_INT64: *(int64_t *)dst= lrintf(num/den)*intnum; break;
case FF_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass
AVOption *o= c->option;
AVOption *ret=NULL;
-
+
for(;o && o->name; o++){
if(o->type != FF_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)){
double tmp= d;
if(o && o->offset==0 && o->type == FF_OPT_TYPE_CONST && o->unit){
return set_all_opt(obj, o->unit, o->default_val);
}
- if(!o || !val || o->offset<=0)
+ if(!o || !val || o->offset<=0)
return NULL;
if(o->type != FF_OPT_TYPE_STRING){
for(;;){
if(*val == '+' || *val == '-')
cmd= *(val++);
-
+
for(i=0; i<sizeof(buf)-1 && val[i] && val[i]!='+' && val[i]!='-'; i++)
buf[i]= val[i];
buf[i]=0;
val+= i;
-
+
d= av_parse_num(buf, &tail);
if(tail <= buf){
AVOption *o_named= find_opt(obj, buf, o->unit);
- if(o_named && o_named->type == FF_OPT_TYPE_CONST)
+ if(o_named && o_named->type == FF_OPT_TYPE_CONST)
d= o_named->default_val;
else if(!strcmp(buf, "default")) d= o->default_val;
else if(!strcmp(buf, "max" )) d= o->max;
}
return NULL;
}
-
+
memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val));
return o;
}
}
/**
- *
+ *
* @param buf a buffer which is used for returning non string values as strings, can be NULL
* @param buf_len allocated length in bytes of buf
*/
dst= ((uint8_t*)obj) + o->offset;
if(o_out) *o_out= o;
-
+
if(o->type == FF_OPT_TYPE_STRING)
return dst;
-
+
switch(o->type){
case FF_OPT_TYPE_FLAGS: snprintf(buf, buf_len, "0x%08X",*(int *)dst);break;
case FF_OPT_TYPE_INT: snprintf(buf, buf_len, "%d" , *(int *)dst);break;
- case FF_OPT_TYPE_INT64: snprintf(buf, buf_len, "%Ld", *(int64_t*)dst);break;
+ case FF_OPT_TYPE_INT64: snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
case FF_OPT_TYPE_FLOAT: snprintf(buf, buf_len, "%f" , *(float *)dst);break;
case FF_OPT_TYPE_DOUBLE: snprintf(buf, buf_len, "%f" , *(double *)dst);break;
case FF_OPT_TYPE_RATIONAL: snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
if(o_out) *o_out= o;
switch(o->type){
- case FF_OPT_TYPE_FLAGS:
+ case FF_OPT_TYPE_FLAGS:
case FF_OPT_TYPE_INT: *intnum= *(int *)dst;return 0;
case FF_OPT_TYPE_INT64: *intnum= *(int64_t*)dst;return 0;
case FF_OPT_TYPE_FLOAT: *num= *(float *)dst;return 0;
case FF_OPT_TYPE_DOUBLE: *num= *(double *)dst;return 0;
- case FF_OPT_TYPE_RATIONAL: *intnum= ((AVRational*)dst)->num;
+ case FF_OPT_TYPE_RATIONAL: *intnum= ((AVRational*)dst)->num;
*den = ((AVRational*)dst)->den;
return 0;
}
int av_opt_show(void *obj, void *av_log_obj){
AVOption *opt=NULL;
-
+
if(!obj)
return -1;
while((opt= av_next_option(obj, opt))){
if(!(opt->flags & (AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM)))
continue;
-
+
av_log(av_log_obj, AV_LOG_INFO, "-%-17s ", opt->name);
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
-
+
if(opt->help)
av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
av_log(av_log_obj, AV_LOG_INFO, "\n");