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-rw-r--r--libavcodec/opt.c449
1 files changed, 37 insertions, 412 deletions
diff --git a/libavcodec/opt.c b/libavcodec/opt.c
index e3b2a0bda7..fed9ae9930 100644
--- a/libavcodec/opt.c
+++ b/libavcodec/opt.c
@@ -1,6 +1,6 @@
/*
- * AVOptions
- * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ * AVOptions ABI compatibility wrapper
+ * Copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
@@ -19,185 +19,51 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-/**
- * @file
- * AVOptions
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
#include "avcodec.h"
#include "opt.h"
-#include "libavutil/eval.h"
-//FIXME order them and do a bin search
-const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags){
- AVClass *c= *(AVClass**)v; //FIXME silly way of storing AVClass
- const AVOption *o= c->option;
+#if LIBAVCODEC_VERSION_MAJOR < 53 && CONFIG_SHARED && HAVE_SYMVER
- for(;o && o->name; o++){
- if(!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags )
- return o;
- }
- return NULL;
+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);
}
-
-const AVOption *av_next_option(void *obj, const AVOption *last){
- if(last && last[1].name) return ++last;
- else if(last) return NULL;
- else return (*(AVClass**)obj)->option;
+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);
}
-
-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 AVERROR(ENOENT);
-
- if(o->max*den < num*intnum || o->min*den > num*intnum) {
- 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;
-
- switch(o->type){
- case FF_OPT_TYPE_FLAGS:
- case FF_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break;
- case FF_OPT_TYPE_INT64: *(int64_t *)dst= llrint(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);
- break;
- default:
- return AVERROR(EINVAL);
- }
- return 0;
+FF_SYMVER(const AVOption *, av_set_double, (void *obj, const char *name, double n), "LIBAVCODEC_52"){
+ return av_set_double(obj, name, n);
}
-
-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;
+FF_SYMVER(const AVOption *, av_set_q, (void *obj, const char *name, AVRational n), "LIBAVCODEC_52"){
+ return av_set_q(obj, name, n);
}
-
-static const double const_values[]={
- M_PI,
- M_E,
- FF_QP2LAMBDA,
- 0
-};
-
-static const char * const const_names[]={
- "PI",
- "E",
- "QP2LAMBDA",
- 0
-};
-
-static int hexchar2int(char c) {
- if (c >= '0' && c <= '9') return c - '0';
- if (c >= 'a' && c <= 'f') return c - 'a' + 10;
- if (c >= 'A' && c <= 'F') return c - 'A' + 10;
- return -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);
}
-
-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_out)
- *o_out = o;
- if(!o)
- 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);
- uint8_t *bin, *ptr;
- int len = strlen(val);
- av_freep(dst);
- *lendst = 0;
- if (len & 1) return AVERROR(EINVAL);
- len /= 2;
- ptr = bin = av_malloc(len);
- while (*val) {
- int a = hexchar2int(*val++);
- int b = hexchar2int(*val++);
- if (a < 0 || b < 0) {
- av_free(bin);
- return AVERROR(EINVAL);
- }
- *ptr++ = (a << 4) | b;
- }
- *dst = bin;
- *lendst = len;
- return 0;
- }
- if(o->type != FF_OPT_TYPE_STRING){
- int notfirst=0;
- for(;;){
- int i;
- char buf[256];
- 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;
-
- {
- const AVOption *o_named= av_find_opt(obj, buf, o->unit, 0, 0);
- 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 if(!strcmp(buf, "none" )) d= 0;
- else if(!strcmp(buf, "all" )) d= ~0;
- else {
- int res = av_parse_and_eval_expr(&d, buf, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
- if (res < 0) {
- av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
- return res;
- }
- }
- }
- 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= notfirst*av_get_double(obj, name, NULL) + d;
- else if(cmd=='-') d= notfirst*av_get_double(obj, name, NULL) - d;
- }
-
- if ((ret = av_set_number2(obj, name, d, 1, 1, o_out)) < 0)
- return ret;
- val+= i;
- if(!*val)
- return 0;
- notfirst=1;
- }
- return AVERROR(EINVAL);
- }
-
- if(alloc){
- av_free(*(void**)(((uint8_t*)obj) + o->offset));
- val= av_strdup(val);
- }
-
- memcpy(((uint8_t*)obj) + o->offset, &val, sizeof(val));
- return 0;
+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);
+}
+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);
+}
+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);
+}
+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);
+}
+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
#if LIBAVCODEC_VERSION_MAJOR < 53
const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc){
@@ -215,250 +81,9 @@ const AVOption *av_set_string(void *obj, const char *name, const char *val){
}
#endif
-const AVOption *av_set_double(void *obj, const char *name, double n){
- return av_set_number(obj, name, n, 1, 1);
-}
-
-const AVOption *av_set_q(void *obj, const char *name, AVRational n){
- return av_set_number(obj, name, n.num, n.den, 1);
-}
-
-const AVOption *av_set_int(void *obj, const char *name, int64_t n){
- return av_set_number(obj, name, 1, 1, n);
-}
-
-/**
- *
- * @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, const AVOption **o_out, char *buf, int buf_len){
- const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
- void *dst;
- uint8_t *bin;
- int len, i;
- 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;
-
- 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, "%"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;
- case FF_OPT_TYPE_STRING: return *(void**)dst;
- case FF_OPT_TYPE_BINARY:
- len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
- if(len >= (buf_len + 1)/2) return NULL;
- bin = *(uint8_t**)dst;
- for(i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
- break;
- default: return NULL;
- }
- return buf;
-}
-
-static int av_get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum){
- const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
- 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: *intnum= *(unsigned int*)dst;return 0;
- 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;
-}
-
-double av_get_double(void *obj, const char *name, const 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;
-}
-
-AVRational av_get_q(void *obj, const char *name, const 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);
-}
-
-int64_t av_get_int(void *obj, const char *name, const 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;
-}
-
-static void opt_list(void *obj, void *av_log_obj, const char *unit,
- int req_flags, int rej_flags)
-{
- const AVOption *opt=NULL;
-
- while((opt= av_next_option(obj, opt))){
- if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
- continue;
-
- /* 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 )
- {
- case FF_OPT_TYPE_FLAGS:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<flags>" );
- break;
- case FF_OPT_TYPE_INT:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<int>" );
- break;
- case FF_OPT_TYPE_INT64:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<int64>" );
- break;
- case FF_OPT_TYPE_DOUBLE:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<double>" );
- break;
- case FF_OPT_TYPE_FLOAT:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<float>" );
- break;
- case FF_OPT_TYPE_STRING:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<string>" );
- break;
- case FF_OPT_TYPE_RATIONAL:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<rational>" );
- break;
- case FF_OPT_TYPE_BINARY:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<binary>" );
- break;
- case FF_OPT_TYPE_CONST:
- default:
- av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" );
- break;
- }
- 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");
- if (opt->unit && opt->type != FF_OPT_TYPE_CONST) {
- opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
- }
- }
-}
-
-int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
-{
- 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, req_flags, rej_flags);
-
- 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
-
-/** Set the values of the AVCodecContext or AVFormatContext structure.
- * They are set to the defaults specified in the according AVOption options
- * array default_val field.
- *
- * @param s AVCodecContext or AVFormatContext for which the defaults will be set
- */
-void av_opt_set_defaults2(void *s, int mask, int flags)
-{
- const AVOption *opt = NULL;
- while ((opt = av_next_option(s, opt)) != NULL) {
- if((opt->flags & mask) != flags)
- continue;
- switch(opt->type) {
- case FF_OPT_TYPE_CONST:
- /* Nothing to be done here */
- break;
- case FF_OPT_TYPE_FLAGS:
- case FF_OPT_TYPE_INT: {
- int val;
- val = opt->default_val;
- av_set_int(s, opt->name, val);
- }
- break;
- case FF_OPT_TYPE_INT64:
- if((double)(opt->default_val+0.6) == opt->default_val)
- av_log(s, AV_LOG_DEBUG, "loss of precision in default of %s\n", opt->name);
- av_set_int(s, opt->name, opt->default_val);
- break;
- case FF_OPT_TYPE_FLOAT: {
- double val;
- val = opt->default_val;
- av_set_double(s, opt->name, val);
- }
- break;
- case FF_OPT_TYPE_RATIONAL: {
- AVRational val;
- val = av_d2q(opt->default_val, INT_MAX);
- av_set_q(s, opt->name, val);
- }
- break;
- case FF_OPT_TYPE_STRING:
- case FF_OPT_TYPE_BINARY:
- /* Cannot set default for string as default_val is of type * double */
- break;
- default:
- av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
- }
- }
-}
-
-void av_opt_set_defaults(void *s){
- av_opt_set_defaults2(s, 0, 0);
-}
-
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