* AVOptions
* Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "avcodec.h"
#include "opt.h"
-
-static int8_t si_prefixes['z' - 'E' + 1]={
- ['y'-'E']= -24,
- ['z'-'E']= -21,
- ['a'-'E']= -18,
- ['f'-'E']= -15,
- ['p'-'E']= -12,
- ['n'-'E']= - 9,
- ['u'-'E']= - 6,
- ['m'-'E']= - 3,
- ['c'-'E']= - 2,
- ['d'-'E']= - 1,
- ['h'-'E']= 2,
- ['k'-'E']= 3,
- ['K'-'E']= 3,
- ['M'-'E']= 6,
- ['G'-'E']= 9,
- ['T'-'E']= 12,
- ['P'-'E']= 15,
- ['E'-'E']= 18,
- ['Z'-'E']= 21,
- ['Y'-'E']= 24,
-};
-
-/** strtod() function extended with 'k', 'M', 'G', 'ki', 'Mi', 'Gi' and 'B'
- * postfixes. This allows using f.e. kB, MiB, G and B as a postfix. This
- * function assumes that the unit of numbers is bits not bytes.
- */
-double av_strtod(const char *name, char **tail) {
- double d;
- int p = 0;
- char *next;
- d = strtod(name, &next);
- /* if parsing succeeded, check for and interpret postfixes */
- if (next!=name) {
-
- if(*next >= 'E' && *next <= 'z'){
- int e= si_prefixes[*next - 'E'];
- if(e){
- if(next[1] == 'i'){
- d*= pow( 2, e/0.3);
- next+=2;
- }else{
- d*= pow(10, e);
- next++;
- }
- }
- }
-
- if(*next=='B') {
- d*=8;
- *next++;
- }
- }
- /* if requested, fill in tail with the position after the last parsed
- character */
- if (tail)
- *tail = next;
- return d;
-}
-
-static double av_parse_num(const char *name, char **tail){
- double d;
- d= av_strtod(name, tail);
- if(*tail>name && (**tail=='/' || **tail==':'))
- d/=av_strtod((*tail)+1, tail);
- return d;
-}
+#include "eval.h"
//FIXME order them and do a bin search
static AVOption *find_opt(void *v, const char *name, const char *unit){
if(!o || o->offset<=0)
return NULL;
- if(o->max*den < num*intnum || o->min*den > num*intnum)
+ 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;
+ }
dst= ((uint8_t*)obj) + o->offset;
return ret;
}
-//FIXME use eval.c maybe?
+static double const_values[]={
+ M_PI,
+ M_E,
+ FF_QP2LAMBDA,
+ 0
+};
+
+static const char *const_names[]={
+ "PI",
+ "E",
+ "QP2LAMBDA",
+ 0
+};
+
AVOption *av_set_string(void *obj, const char *name, const char *val){
AVOption *o= find_opt(obj, name, NULL);
if(o && o->offset==0 && o->type == FF_OPT_TYPE_CONST && o->unit){
if(o->type != FF_OPT_TYPE_STRING){
for(;;){
int i;
- char buf[256], *tail;
+ char buf[256];
int cmd=0;
double d;
+ char *error = NULL;
if(*val == '+' || *val == '-')
cmd= *(val++);
buf[i]=0;
val+= i;
- d= av_parse_num(buf, &tail);
- if(tail <= buf){
+ d = ff_eval2(buf, const_values, const_names, NULL, NULL, NULL, NULL, NULL, &error);
+ if(isnan(d)) {
AVOption *o_named= find_opt(obj, buf, o->unit);
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;
else if(!strcmp(buf, "min" )) d= o->min;
- else return NULL;
+ else {
+ if (!error)
+ av_log(NULL, AV_LOG_ERROR, "Unable to parse option value \"%s\": %s\n", val, error);
+ return NULL;
+ }
}
if(o->type == FF_OPT_TYPE_FLAGS){
if (cmd=='+') d= av_get_int(obj, name, NULL) | (int64_t)d;
return num*intnum/den;
}
-int av_opt_show(void *obj, void *av_log_obj){
+static void opt_list(void *obj, void *av_log_obj, char *unit)
+{
AVOption *opt=NULL;
- if(!obj)
- return -1;
-
- av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
-
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);
+ /* Don't print CONST's on level one.
+ * Don't print anything but CONST's on level two.
+ * Only print items from the requested unit.
+ */
+ if (!unit && opt->type==FF_OPT_TYPE_CONST)
+ continue;
+ else if (unit && opt->type!=FF_OPT_TYPE_CONST)
+ continue;
+ else if (unit && opt->type==FF_OPT_TYPE_CONST && strcmp(unit, opt->unit))
+ continue;
+ else if (unit && opt->type == FF_OPT_TYPE_CONST)
+ av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
+ else
+ av_log(av_log_obj, AV_LOG_INFO, "-%-17s ", opt->name);
switch( opt->type )
{
if(opt->help)
av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
av_log(av_log_obj, AV_LOG_INFO, "\n");
+ if (opt->unit && opt->type != FF_OPT_TYPE_CONST) {
+ opt_list(obj, av_log_obj, opt->unit);
+ }
}
+}
+
+int av_opt_show(void *obj, void *av_log_obj){
+ if(!obj)
+ return -1;
+
+ av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
+
+ opt_list(obj, av_log_obj, NULL);
+
return 0;
}
projects / ffmpeg / blobdiff