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-rw-r--r--libavcodec/avcodec.h6
-rw-r--r--libavcodec/opt.c449
-rw-r--r--libavcodec/opt.h176
-rw-r--r--libavcodec/options.c2
-rw-r--r--libavcodec/resample.c2
-rw-r--r--libavcodec/utils.c2
-rw-r--r--libavfilter/parseutils.h2
-rw-r--r--libavformat/avio.c2
-rw-r--r--libavformat/http.c2
-rw-r--r--libavformat/options.c2
-rw-r--r--libavformat/utils.c2
-rw-r--r--libavutil/Makefile1
-rw-r--r--libavutil/avutil.h7
-rw-r--r--libavutil/opt.c441
-rw-r--r--libavutil/opt.h207
15 files changed, 702 insertions, 601 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 45609d0585..db5aa1c5f7 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1928,12 +1928,6 @@ typedef struct AVCodecContext {
*/
void *internal_buffer;
-#define FF_LAMBDA_SHIFT 7
-#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
-#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
-#define FF_LAMBDA_MAX (256*128-1)
-
-#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
/**
* Global quality for codecs which cannot change it per frame.
* This should be proportional to MPEG-1/2/4 qscale.
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);
-}
-
diff --git a/libavcodec/opt.h b/libavcodec/opt.h
index ca56141c5e..b6e6f59ea4 100644
--- a/libavcodec/opt.h
+++ b/libavcodec/opt.h
@@ -29,128 +29,7 @@
#include "libavutil/rational.h"
#include "avcodec.h"
-
-enum AVOptionType{
- FF_OPT_TYPE_FLAGS,
- FF_OPT_TYPE_INT,
- FF_OPT_TYPE_INT64,
- FF_OPT_TYPE_DOUBLE,
- FF_OPT_TYPE_FLOAT,
- FF_OPT_TYPE_STRING,
- FF_OPT_TYPE_RATIONAL,
- FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length
- FF_OPT_TYPE_CONST=128,
-};
-
-/**
- * AVOption
- */
-typedef struct AVOption {
- const char *name;
-
- /**
- * short English help text
- * @todo What about other languages?
- */
- const char *help;
-
- /**
- * The offset relative to the context structure where the option
- * value is stored. It should be 0 for named constants.
- */
- int offset;
- enum AVOptionType type;
-
- /**
- * the default value for scalar options
- */
- double default_val;
- double min; ///< minimum valid value for the option
- double max; ///< maximum valid value for the option
-
- int flags;
-#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
-#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
-#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
-#define AV_OPT_FLAG_AUDIO_PARAM 8
-#define AV_OPT_FLAG_VIDEO_PARAM 16
-#define AV_OPT_FLAG_SUBTITLE_PARAM 32
-//FIXME think about enc-audio, ... style flags
-
- /**
- * The logical unit to which the option belongs. Non-constant
- * options and corresponding named constants share the same
- * unit. May be NULL.
- */
- const char *unit;
-} AVOption;
-
-/**
- * AVOption2.
- * THIS IS NOT PART OF THE API/ABI YET!
- * This is identical to AVOption except that default_val was replaced by
- * an union, it should be compatible with AVOption on normal platforms.
- */
-typedef struct AVOption2 {
- const char *name;
-
- /**
- * short English help text
- * @todo What about other languages?
- */
- const char *help;
-
- /**
- * The offset relative to the context structure where the option
- * value is stored. It should be 0 for named constants.
- */
- int offset;
- enum AVOptionType type;
-
- /**
- * the default value for scalar options
- */
- union {
- double dbl;
- const char *str;
- } default_val;
-
- double min; ///< minimum valid value for the option
- double max; ///< maximum valid value for the option
-
- int flags;
-/*
-#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
-#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
-#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
-#define AV_OPT_FLAG_AUDIO_PARAM 8
-#define AV_OPT_FLAG_VIDEO_PARAM 16
-#define AV_OPT_FLAG_SUBTITLE_PARAM 32
-*/
-//FIXME think about enc-audio, ... style flags
-
- /**
- * The logical unit to which the option belongs. Non-constant
- * options and corresponding named constants share the same
- * unit. May be NULL.
- */
- const char *unit;
-} AVOption2;
-
-
-/**
- * Look for an option in obj. Look only for the options which
- * have the flags set as specified in mask and flags (that is,
- * for which it is the case that opt->flags & mask == flags).
- *
- * @param[in] obj a pointer to a struct whose first element is a
- * pointer to an AVClass
- * @param[in] name the name of the option to look for
- * @param[in] unit the unit of the option to look for, or any if NULL
- * @return a pointer to the option found, or NULL if no option
- * has been found
- */
-const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags);
+#include "libavutil/opt.h"
#if LIBAVCODEC_VERSION_MAJOR < 53
/**
@@ -166,45 +45,6 @@ attribute_deprecated const AVOption *av_set_string(void *obj, const char *name,
*/
attribute_deprecated const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc);
#endif
-
-/**
- * Set the field of obj with the given name to value.
- *
- * @param[in] obj A struct whose first element is a pointer to an
- * AVClass.
- * @param[in] name the name of the field to set
- * @param[in] val The value to set. If the field is not of a string
- * type, then the given string is parsed.
- * SI postfixes and some named scalars are supported.
- * If the field is of a numeric type, it has to be a numeric or named
- * scalar. Behavior with more than one scalar and +- infix operators
- * is undefined.
- * If the field is of a flags type, it has to be a sequence of numeric
- * scalars or named flags separated by '+' or '-'. Prefixing a flag
- * with '+' causes it to be set without affecting the other flags;
- * similarly, '-' unsets a flag.
- * @param[out] o_out if non-NULL put here a pointer to the AVOption
- * found
- * @param alloc when 1 then the old value will be av_freed() and the
- * new av_strduped()
- * when 0 then no av_free() nor av_strdup() will be used
- * @return 0 if the value has been set, or an AVERROR code in case of
- * error:
- * AVERROR(ENOENT) if no matching option exists
- * AVERROR(ERANGE) if the value is out of range
- * AVERROR(EINVAL) if the value is not valid
- */
-int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out);
-
-const AVOption *av_set_double(void *obj, const char *name, double n);
-const AVOption *av_set_q(void *obj, const char *name, AVRational n);
-const AVOption *av_set_int(void *obj, const char *name, int64_t n);
-double av_get_double(void *obj, const char *name, const AVOption **o_out);
-AVRational av_get_q(void *obj, const char *name, const AVOption **o_out);
-int64_t av_get_int(void *obj, const char *name, const AVOption **o_out);
-const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len);
-const AVOption *av_next_option(void *obj, const AVOption *last);
-
#if FF_API_OPT_SHOW
/**
* @deprecated Use av_opt_show2() instead.
@@ -212,18 +52,4 @@ const AVOption *av_next_option(void *obj, const AVOption *last);
attribute_deprecated int av_opt_show(void *obj, void *av_log_obj);
#endif
-/**
- * Show the obj options.
- *
- * @param req_flags requested flags for the options to show. Show only the
- * options for which it is opt->flags & req_flags.
- * @param rej_flags rejected flags for the options to show. Show only the
- * options for which it is !(opt->flags & req_flags).
- * @param av_log_obj log context to use for showing the options
- */
-int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags);
-
-void av_opt_set_defaults(void *s);
-void av_opt_set_defaults2(void *s, int mask, int flags);
-
#endif /* AVCODEC_OPT_H */
diff --git a/libavcodec/options.c b/libavcodec/options.c
index 5e459c472f..d55d4fde26 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -25,7 +25,7 @@
*/
#include "avcodec.h"
-#include "opt.h"
+#include "libavutil/opt.h"
#include <float.h> /* FLT_MIN, FLT_MAX */
static const char* context_to_name(void* ptr) {
diff --git a/libavcodec/resample.c b/libavcodec/resample.c
index b008180fe5..e51b4fc667 100644
--- a/libavcodec/resample.c
+++ b/libavcodec/resample.c
@@ -26,7 +26,7 @@
#include "avcodec.h"
#include "audioconvert.h"
-#include "opt.h"
+#include "libavutil/opt.h"
struct AVResampleContext;
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 543c1bdab5..ad80f0f4a3 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -32,7 +32,7 @@
#include "libavcore/imgutils.h"
#include "avcodec.h"
#include "dsputil.h"
-#include "opt.h"
+#include "libavutil/opt.h"
#include "imgconvert.h"
#include "audioconvert.h"
#include "internal.h"
diff --git a/libavfilter/parseutils.h b/libavfilter/parseutils.h
index e8e1e1a09a..a139c952ab 100644
--- a/libavfilter/parseutils.h
+++ b/libavfilter/parseutils.h
@@ -25,7 +25,7 @@
#ifndef AVFILTER_PARSEUTILS_H
#define AVFILTER_PARSEUTILS_H
-#include "libavcodec/opt.h"
+#include "libavutil/opt.h"
/**
* Unescape the given string until a non escaped terminating char,
diff --git a/libavformat/avio.c b/libavformat/avio.c
index 9d50b48460..bf075d24ae 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -23,7 +23,7 @@
#define _XOPEN_SOURCE 600
#include <unistd.h>
#include "libavutil/avstring.h"
-#include "libavcodec/opt.h"
+#include "libavutil/opt.h"
#include "os_support.h"
#include "avformat.h"
#if CONFIG_NETWORK
diff --git a/libavformat/http.c b/libavformat/http.c
index e26da072cc..f58c78a49b 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -28,7 +28,7 @@
#include "http.h"
#include "os_support.h"
#include "httpauth.h"
-#include "libavcodec/opt.h"
+#include "libavutil/opt.h"
/* XXX: POST protocol is not completely implemented because ffmpeg uses
only a subset of it. */
diff --git a/libavformat/options.c b/libavformat/options.c
index 3be0a3d17d..cba6436c29 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -18,7 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
-#include "libavcodec/opt.h"
+#include "libavutil/opt.h"
/**
* @file
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 277201538d..a445e0b861 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -21,7 +21,7 @@
#include "avformat.h"
#include "internal.h"
#include "libavcodec/internal.h"
-#include "libavcodec/opt.h"
+#include "libavutil/opt.h"
#include "metadata.h"
#include "libavutil/avstring.h"
#include "riff.h"
diff --git a/libavutil/Makefile b/libavutil/Makefile
index 22b5452f55..f9178e87d9 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -49,6 +49,7 @@ OBJS = adler32.o \
mathematics.o \
md5.o \
mem.o \
+ opt.o \
pixdesc.o \
random_seed.o \
rational.o \
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 758b012591..88fc092977 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -78,6 +78,13 @@ enum AVMediaType {
AVMEDIA_TYPE_NB
};
+#define FF_LAMBDA_SHIFT 7
+#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
+#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
+#define FF_LAMBDA_MAX (256*128-1)
+
+#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
+
#include "common.h"
#include "error.h"
#include "mathematics.h"
diff --git a/libavutil/opt.c b/libavutil/opt.c
new file mode 100644
index 0000000000..ba48a904c0
--- /dev/null
+++ b/libavutil/opt.c
@@ -0,0 +1,441 @@
+/*
+ * AVOptions
+ * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AVOptions
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "avutil.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;
+
+ 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;
+}
+
+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;
+}
+
+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;
+}
+
+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[]={
+ 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;
+}
+
+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;
+}
+
+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;
+}
+
+/** 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);
+}
+
diff --git a/libavutil/opt.h b/libavutil/opt.h
new file mode 100644
index 0000000000..1006ab6e54
--- /dev/null
+++ b/libavutil/opt.h
@@ -0,0 +1,207 @@
+/*
+ * AVOptions
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_OPT_H
+#define AVUTIL_OPT_H
+
+/**
+ * @file
+ * AVOptions
+ */
+
+#include "rational.h"
+#include "avutil.h"
+
+enum AVOptionType{
+ FF_OPT_TYPE_FLAGS,
+ FF_OPT_TYPE_INT,
+ FF_OPT_TYPE_INT64,
+ FF_OPT_TYPE_DOUBLE,
+ FF_OPT_TYPE_FLOAT,
+ FF_OPT_TYPE_STRING,
+ FF_OPT_TYPE_RATIONAL,
+ FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length
+ FF_OPT_TYPE_CONST=128,
+};
+
+/**
+ * AVOption
+ */
+typedef struct AVOption {
+ const char *name;
+
+ /**
+ * short English help text
+ * @todo What about other languages?
+ */
+ const char *help;
+
+ /**
+ * The offset relative to the context structure where the option
+ * value is stored. It should be 0 for named constants.
+ */
+ int offset;
+ enum AVOptionType type;
+
+ /**
+ * the default value for scalar options
+ */
+ double default_val;
+ double min; ///< minimum valid value for the option
+ double max; ///< maximum valid value for the option
+
+ int flags;
+#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
+#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
+#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
+#define AV_OPT_FLAG_AUDIO_PARAM 8
+#define AV_OPT_FLAG_VIDEO_PARAM 16
+#define AV_OPT_FLAG_SUBTITLE_PARAM 32
+//FIXME think about enc-audio, ... style flags
+
+ /**
+ * The logical unit to which the option belongs. Non-constant
+ * options and corresponding named constants share the same
+ * unit. May be NULL.
+ */
+ const char *unit;
+} AVOption;
+
+/**
+ * AVOption2.
+ * THIS IS NOT PART OF THE API/ABI YET!
+ * This is identical to AVOption except that default_val was replaced by
+ * an union, it should be compatible with AVOption on normal platforms.
+ */
+typedef struct AVOption2 {
+ const char *name;
+
+ /**
+ * short English help text
+ * @todo What about other languages?
+ */
+ const char *help;
+
+ /**
+ * The offset relative to the context structure where the option
+ * value is stored. It should be 0 for named constants.
+ */
+ int offset;
+ enum AVOptionType type;
+
+ /**
+ * the default value for scalar options
+ */
+ union {
+ double dbl;
+ const char *str;
+ } default_val;
+
+ double min; ///< minimum valid value for the option
+ double max; ///< maximum valid value for the option
+
+ int flags;
+/*
+#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding
+#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding
+#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ...
+#define AV_OPT_FLAG_AUDIO_PARAM 8
+#define AV_OPT_FLAG_VIDEO_PARAM 16
+#define AV_OPT_FLAG_SUBTITLE_PARAM 32
+*/
+//FIXME think about enc-audio, ... style flags
+
+ /**
+ * The logical unit to which the option belongs. Non-constant
+ * options and corresponding named constants share the same
+ * unit. May be NULL.
+ */
+ const char *unit;
+} AVOption2;
+
+
+/**
+ * Look for an option in obj. Look only for the options which
+ * have the flags set as specified in mask and flags (that is,
+ * for which it is the case that opt->flags & mask == flags).
+ *
+ * @param[in] obj a pointer to a struct whose first element is a
+ * pointer to an AVClass
+ * @param[in] name the name of the option to look for
+ * @param[in] unit the unit of the option to look for, or any if NULL
+ * @return a pointer to the option found, or NULL if no option
+ * has been found
+ */
+const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags);
+
+/**
+ * Set the field of obj with the given name to value.
+ *
+ * @param[in] obj A struct whose first element is a pointer to an
+ * AVClass.
+ * @param[in] name the name of the field to set
+ * @param[in] val The value to set. If the field is not of a string
+ * type, then the given string is parsed.
+ * SI postfixes and some named scalars are supported.
+ * If the field is of a numeric type, it has to be a numeric or named
+ * scalar. Behavior with more than one scalar and +- infix operators
+ * is undefined.
+ * If the field is of a flags type, it has to be a sequence of numeric
+ * scalars or named flags separated by '+' or '-'. Prefixing a flag
+ * with '+' causes it to be set without affecting the other flags;
+ * similarly, '-' unsets a flag.
+ * @param[out] o_out if non-NULL put here a pointer to the AVOption
+ * found
+ * @param alloc when 1 then the old value will be av_freed() and the
+ * new av_strduped()
+ * when 0 then no av_free() nor av_strdup() will be used
+ * @return 0 if the value has been set, or an AVERROR code in case of
+ * error:
+ * AVERROR(ENOENT) if no matching option exists
+ * AVERROR(ERANGE) if the value is out of range
+ * AVERROR(EINVAL) if the value is not valid
+ */
+int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out);
+
+const AVOption *av_set_double(void *obj, const char *name, double n);
+const AVOption *av_set_q(void *obj, const char *name, AVRational n);
+const AVOption *av_set_int(void *obj, const char *name, int64_t n);
+double av_get_double(void *obj, const char *name, const AVOption **o_out);
+AVRational av_get_q(void *obj, const char *name, const AVOption **o_out);
+int64_t av_get_int(void *obj, const char *name, const AVOption **o_out);
+const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len);
+const AVOption *av_next_option(void *obj, const AVOption *last);
+
+/**
+ * Show the obj options.
+ *
+ * @param req_flags requested flags for the options to show. Show only the
+ * options for which it is opt->flags & req_flags.
+ * @param rej_flags rejected flags for the options to show. Show only the
+ * options for which it is !(opt->flags & req_flags).
+ * @param av_log_obj log context to use for showing the options
+ */
+int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags);
+
+void av_opt_set_defaults(void *s);
+void av_opt_set_defaults2(void *s, int mask, int flags);
+
+#endif /* AVUTIL_OPT_H */
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