/*
- * AVOptions
- * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ * AVOptions ABI compatibility wrapper
+ * Copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav 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,
+ * Libav 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
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-/**
- * @file opt.c
- * AVOptions
- * @author Michael Niedermayer <michaelni@gmx.at>
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
+
#include "avcodec.h"
-
-static double av_parse_num(const char *name, char **tail){
- double d;
- d= strtod(name, tail);
- if(*tail>name && (**tail=='/' || **tail==':'))
- d/=strtod((*tail)+1, tail);
- return d;
-}
+#include "opt.h"
-//FIXME order them and do a bin search
-static AVOption *find_opt(void *v, const char *name){
- AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass
- AVOption *o= c->option;
-
- for(;o && o->name; o++){
- if(!strcmp(o->name, name))
- return o;
- }
- return NULL;
-}
+#if LIBAVCODEC_VERSION_MAJOR < 53 && CONFIG_SHARED && HAVE_SYMVER
-AVOption *av_next_option(void *obj, AVOption *last){
- if(last && last[1].name) return ++last;
- else if(last) return NULL;
- else return (*(AVClass**)obj)->option;
+FF_SYMVER(const AVOption *, av_find_opt, (void *obj, const char *name, const char *unit, int mask, int flags), "LIBAVCODEC_52"){
+ return av_find_opt(obj, name, unit, mask, flags);
}
-
-static AVOption *av_set_number(void *obj, const char *name, double num, int den, int64_t intnum){
- AVOption *o= find_opt(obj, name);
- void *dst;
- 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_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;
- case FF_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
- case FF_OPT_TYPE_RATIONAL:
- if((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
- else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
- default:
- return NULL;
- }
- return o;
+FF_SYMVER(int, av_set_string3, (void *obj, const char *name, const char *val, int alloc, const AVOption **o_out), "LIBAVCODEC_52"){
+ return av_set_string3(obj, name, val, alloc, o_out);
}
-
-//FIXME use eval.c maybe?
-AVOption *av_set_string(void *obj, const char *name, const char *val){
- AVOption *o= find_opt(obj, name);
- if(!o || !val || o->offset<=0)
- return NULL;
- if(o->type != FF_OPT_TYPE_STRING){
- for(;;){
- int i;
- char buf[256], *tail;
- int cmd=0;
- double d;
-
- 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);
- if(o_named && o_named->type == FF_OPT_TYPE_CONST && !strcmp(o_named->unit, o->unit))
- 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;
- }
- if(o->type == FF_OPT_TYPE_FLAGS){
- if (cmd=='+') d= av_get_int(obj, name, NULL) | (int64_t)d;
- else if(cmd=='-') d= av_get_int(obj, name, NULL) &~(int64_t)d;
- }else if(cmd=='-')
- d= -d;
-
- av_set_number(obj, name, d, 1, 1);
- if(!*val)
- return o;
- }
- return NULL;
- }
-
- memcpy(((uint8_t*)obj) + o->offset, val, sizeof(val));
- return o;
+FF_SYMVER(const AVOption *, av_set_double, (void *obj, const char *name, double n), "LIBAVCODEC_52"){
+ return av_set_double(obj, name, n);
}
-
-AVOption *av_set_double(void *obj, const char *name, double n){
- return av_set_number(obj, name, n, 1, 1);
+FF_SYMVER(const AVOption *, av_set_q, (void *obj, const char *name, AVRational n), "LIBAVCODEC_52"){
+ return av_set_q(obj, name, n);
}
-
-AVOption *av_set_q(void *obj, const char *name, AVRational n){
- return av_set_number(obj, name, n.num, n.den, 1);
+FF_SYMVER(const AVOption *, av_set_int, (void *obj, const char *name, int64_t n), "LIBAVCODEC_52"){
+ return av_set_int(obj, name, n);
}
-
-AVOption *av_set_int(void *obj, const char *name, int64_t n){
- return av_set_number(obj, name, 1, 1, n);
+FF_SYMVER(double, av_get_double, (void *obj, const char *name, const AVOption **o_out), "LIBAVCODEC_52"){
+ return av_get_double(obj, name, o_out);
}
-
-/**
- *
- * @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
- */
-const char *av_get_string(void *obj, const char *name, AVOption **o_out, char *buf, int buf_len){
- AVOption *o= find_opt(obj, name);
- void *dst;
- if(!o || o->offset<=0)
- return NULL;
- if(o->type != FF_OPT_TYPE_STRING && (!buf || !buf_len))
- return NULL;
-
- 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_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;
- default: return NULL;
- }
- return buf;
+FF_SYMVER(AVRational, av_get_q, (void *obj, const char *name, const AVOption **o_out), "LIBAVCODEC_52"){
+ return av_get_q(obj, name, o_out);
}
-
-static int av_get_number(void *obj, const char *name, AVOption **o_out, double *num, int *den, int64_t *intnum){
- AVOption *o= find_opt(obj, name);
- void *dst;
- if(!o || o->offset<=0)
- goto error;
-
- dst= ((uint8_t*)obj) + o->offset;
-
- if(o_out) *o_out= o;
-
- switch(o->type){
- 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;
- *den = ((AVRational*)dst)->den;
- return 0;
- }
-error:
- *den=*intnum=0;
- return -1;
+FF_SYMVER(int64_t, av_get_int, (void *obj, const char *name, const AVOption **o_out), "LIBAVCODEC_52"){
+ return av_get_int(obj, name, o_out);
}
-
-double av_get_double(void *obj, const char *name, AVOption **o_out){
- int64_t intnum=1;
- double num=1;
- int den=1;
-
- av_get_number(obj, name, o_out, &num, &den, &intnum);
- return num*intnum/den;
+FF_SYMVER(const char *, av_get_string, (void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len), "LIBAVCODEC_52"){
+ return av_get_string(obj, name, o_out, buf, buf_len);
}
-
-AVRational av_get_q(void *obj, const char *name, AVOption **o_out){
- int64_t intnum=1;
- double num=1;
- int den=1;
-
- av_get_number(obj, name, o_out, &num, &den, &intnum);
- if(num == 1.0 && (int)intnum == intnum)
- return (AVRational){intnum, den};
- else
- return av_d2q(num*intnum/den, 1<<24);
+FF_SYMVER(const AVOption *, av_next_option, (void *obj, const AVOption *last), "LIBAVCODEC_52"){
+ return av_next_option(obj, last);
}
+FF_SYMVER(int, av_opt_show2, (void *obj, void *av_log_obj, int req_flags, int rej_flags), "LIBAVCODEC_52"){
+ return av_opt_show2(obj, av_log_obj, req_flags, rej_flags);
+}
+FF_SYMVER(void, av_opt_set_defaults, (void *s), "LIBAVCODEC_52"){
+ return av_opt_set_defaults(s);
+}
+FF_SYMVER(void, av_opt_set_defaults2, (void *s, int mask, int flags), "LIBAVCODEC_52"){
+ return av_opt_set_defaults2(s, mask, flags);
+}
+#endif
-int64_t av_get_int(void *obj, const char *name, AVOption **o_out){
- int64_t intnum=1;
- double num=1;
- int den=1;
-
- av_get_number(obj, name, o_out, &num, &den, &intnum);
- return num*intnum/den;
+#if FF_API_SET_STRING_OLD
+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;
}
-int av_opt_show(void *obj, FILE *f){
- AVOption *opt=NULL;
-
- if(!obj)
- return -1;
-#undef fprintf
- fprintf(f, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
+const AVOption *av_set_string(void *obj, const char *name, const char *val){
+ const AVOption *o;
+ if (av_set_string3(obj, name, val, 0, &o) < 0)
+ return NULL;
+ return o;
+}
+#endif
- while((opt= av_next_option(obj, opt))){
- if(!(opt->flags & (AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM)))
- continue;
-
- fprintf(f, "-%-17s ", opt->name);
- fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
- fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
- fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
- fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
- fprintf(f, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
-
- fprintf(f, " %s\n", opt->help);
- }
- return 0;
+#if FF_API_OPT_SHOW
+int av_opt_show(void *obj, void *av_log_obj){
+ return av_opt_show2(obj, av_log_obj,
+ AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
}
+#endif
projects / ffmpeg / blobdiff