yading@11: /*
yading@11:  * AVOptions
yading@11:  * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: /**
yading@11:  * @file
yading@11:  * AVOptions
yading@11:  * @author Michael Niedermayer <michaelni@gmx.at>
yading@11:  */
yading@11: 
yading@11: #include "avutil.h"
yading@11: #include "avstring.h"
yading@11: #include "common.h"
yading@11: #include "opt.h"
yading@11: #include "eval.h"
yading@11: #include "dict.h"
yading@11: #include "log.h"
yading@11: #include "parseutils.h"
yading@11: #include "pixdesc.h"
yading@11: #include "mathematics.h"
yading@11: #include "samplefmt.h"
yading@11: 
yading@11: #include <float.h>
yading@11: 
yading@11: #if FF_API_FIND_OPT
yading@11: //FIXME order them and do a bin search
yading@11: const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
yading@11: {
yading@11:     const AVOption *o = NULL;
yading@11: 
yading@11:     while ((o = av_next_option(v, o))) {
yading@11:         if (!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags)
yading@11:             return o;
yading@11:     }
yading@11:     return NULL;
yading@11: }
yading@11: #endif
yading@11: 
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11: const AVOption *av_next_option(void *obj, const AVOption *last)
yading@11: {
yading@11:     return av_opt_next(obj, last);
yading@11: }
yading@11: #endif
yading@11: 
yading@11: const AVOption *av_opt_next(void *obj, const AVOption *last)
yading@11: {
yading@11:     AVClass *class = *(AVClass**)obj;
yading@11:     if (!last && class->option && class->option[0].name)
yading@11:         return class->option;
yading@11:     if (last && last[1].name)
yading@11:         return ++last;
yading@11:     return NULL;
yading@11: }
yading@11: 
yading@11: static int read_number(const AVOption *o, void *dst, double *num, int *den, int64_t *intnum)
yading@11: {
yading@11:     switch (o->type) {
yading@11:     case AV_OPT_TYPE_FLAGS:     *intnum = *(unsigned int*)dst;return 0;
yading@11:     case AV_OPT_TYPE_PIXEL_FMT:
yading@11:     case AV_OPT_TYPE_SAMPLE_FMT:
yading@11:     case AV_OPT_TYPE_INT:       *intnum = *(int         *)dst;return 0;
yading@11:     case AV_OPT_TYPE_DURATION:
yading@11:     case AV_OPT_TYPE_INT64:     *intnum = *(int64_t     *)dst;return 0;
yading@11:     case AV_OPT_TYPE_FLOAT:     *num    = *(float       *)dst;return 0;
yading@11:     case AV_OPT_TYPE_DOUBLE:    *num    = *(double      *)dst;return 0;
yading@11:     case AV_OPT_TYPE_RATIONAL:  *intnum = ((AVRational*)dst)->num;
yading@11:                                 *den    = ((AVRational*)dst)->den;
yading@11:                                                         return 0;
yading@11:     case AV_OPT_TYPE_CONST:     *num    = o->default_val.dbl; return 0;
yading@11:     }
yading@11:     return AVERROR(EINVAL);
yading@11: }
yading@11: 
yading@11: static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
yading@11: {
yading@11:     if (o->max*den < num*intnum || o->min*den > num*intnum) {
yading@11:         av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
yading@11:                num*intnum/den, o->name, o->min, o->max);
yading@11:         return AVERROR(ERANGE);
yading@11:     }
yading@11: 
yading@11:     switch (o->type) {
yading@11:     case AV_OPT_TYPE_FLAGS:
yading@11:     case AV_OPT_TYPE_PIXEL_FMT:
yading@11:     case AV_OPT_TYPE_SAMPLE_FMT:
yading@11:     case AV_OPT_TYPE_INT:   *(int       *)dst= llrint(num/den)*intnum; break;
yading@11:     case AV_OPT_TYPE_DURATION:
yading@11:     case AV_OPT_TYPE_INT64: *(int64_t   *)dst= llrint(num/den)*intnum; break;
yading@11:     case AV_OPT_TYPE_FLOAT: *(float     *)dst= num*intnum/den;         break;
yading@11:     case AV_OPT_TYPE_DOUBLE:*(double    *)dst= num*intnum/den;         break;
yading@11:     case AV_OPT_TYPE_RATIONAL:
yading@11:         if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
yading@11:         else                 *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
yading@11:         break;
yading@11:     default:
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static const double const_values[] = {
yading@11:     M_PI,
yading@11:     M_E,
yading@11:     FF_QP2LAMBDA,
yading@11:     0
yading@11: };
yading@11: 
yading@11: static const char * const const_names[] = {
yading@11:     "PI",
yading@11:     "E",
yading@11:     "QP2LAMBDA",
yading@11:     0
yading@11: };
yading@11: 
yading@11: static int hexchar2int(char c) {
yading@11:     if (c >= '0' && c <= '9') return c - '0';
yading@11:     if (c >= 'a' && c <= 'f') return c - 'a' + 10;
yading@11:     if (c >= 'A' && c <= 'F') return c - 'A' + 10;
yading@11:     return -1;
yading@11: }
yading@11: 
yading@11: static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
yading@11: {
yading@11:     int *lendst = (int *)(dst + 1);
yading@11:     uint8_t *bin, *ptr;
yading@11:     int len = strlen(val);
yading@11: 
yading@11:     av_freep(dst);
yading@11:     *lendst = 0;
yading@11: 
yading@11:     if (len & 1)
yading@11:         return AVERROR(EINVAL);
yading@11:     len /= 2;
yading@11: 
yading@11:     ptr = bin = av_malloc(len);
yading@11:     while (*val) {
yading@11:         int a = hexchar2int(*val++);
yading@11:         int b = hexchar2int(*val++);
yading@11:         if (a < 0 || b < 0) {
yading@11:             av_free(bin);
yading@11:             return AVERROR(EINVAL);
yading@11:         }
yading@11:         *ptr++ = (a << 4) | b;
yading@11:     }
yading@11:     *dst = bin;
yading@11:     *lendst = len;
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
yading@11: {
yading@11:     av_freep(dst);
yading@11:     *dst = av_strdup(val);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: #define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
yading@11:                               opt->type == AV_OPT_TYPE_CONST || \
yading@11:                               opt->type == AV_OPT_TYPE_FLAGS || \
yading@11:                               opt->type == AV_OPT_TYPE_INT) ? \
yading@11:                              opt->default_val.i64 : opt->default_val.dbl)
yading@11: 
yading@11: static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
yading@11: {
yading@11:     int ret = 0, notfirst = 0;
yading@11:     for (;;) {
yading@11:         int i, den = 1;
yading@11:         char buf[256];
yading@11:         int cmd = 0;
yading@11:         double d, num = 1;
yading@11:         int64_t intnum = 1;
yading@11: 
yading@11:         i = 0;
yading@11:         if (*val == '+' || *val == '-') {
yading@11:             if (o->type == AV_OPT_TYPE_FLAGS)
yading@11:                 cmd = *(val++);
yading@11:             else if (!notfirst)
yading@11:                 buf[i++] = *val;
yading@11:         }
yading@11: 
yading@11:         for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
yading@11:             buf[i] = val[i];
yading@11:         buf[i] = 0;
yading@11: 
yading@11:         {
yading@11:             const AVOption *o_named = av_opt_find(target_obj, buf, o->unit, 0, 0);
yading@11:             if (o_named && o_named->type == AV_OPT_TYPE_CONST)
yading@11:                 d = DEFAULT_NUMVAL(o_named);
yading@11:             else if (!strcmp(buf, "default")) d = DEFAULT_NUMVAL(o);
yading@11:             else if (!strcmp(buf, "max"    )) d = o->max;
yading@11:             else if (!strcmp(buf, "min"    )) d = o->min;
yading@11:             else if (!strcmp(buf, "none"   )) d = 0;
yading@11:             else if (!strcmp(buf, "all"    )) d = ~0;
yading@11:             else {
yading@11:                 int res = av_expr_parse_and_eval(&d, buf, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
yading@11:                 if (res < 0) {
yading@11:                     av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
yading@11:                     return res;
yading@11:                 }
yading@11:             }
yading@11:         }
yading@11:         if (o->type == AV_OPT_TYPE_FLAGS) {
yading@11:             read_number(o, dst, NULL, NULL, &intnum);
yading@11:             if      (cmd == '+') d = intnum | (int64_t)d;
yading@11:             else if (cmd == '-') d = intnum &~(int64_t)d;
yading@11:         } else {
yading@11:             read_number(o, dst, &num, &den, &intnum);
yading@11:             if      (cmd == '+') d = notfirst*num*intnum/den + d;
yading@11:             else if (cmd == '-') d = notfirst*num*intnum/den - d;
yading@11:         }
yading@11: 
yading@11:         if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
yading@11:             return ret;
yading@11:         val += i;
yading@11:         if (!*val)
yading@11:             return 0;
yading@11:         notfirst = 1;
yading@11:     }
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11: int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
yading@11: {
yading@11:     const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
yading@11:     if (o_out)
yading@11:         *o_out = o;
yading@11:     return av_opt_set(obj, name, val, 0);
yading@11: }
yading@11: #endif
yading@11: 
yading@11: int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
yading@11: {
yading@11:     int ret;
yading@11:     void *dst, *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11:     if (!val && (o->type != AV_OPT_TYPE_STRING &&
yading@11:                  o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
yading@11:                  o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
yading@11:                  o->type != AV_OPT_TYPE_DURATION))
yading@11:         return AVERROR(EINVAL);
yading@11: 
yading@11:     dst = ((uint8_t*)target_obj) + o->offset;
yading@11:     switch (o->type) {
yading@11:     case AV_OPT_TYPE_STRING:   return set_string(obj, o, val, dst);
yading@11:     case AV_OPT_TYPE_BINARY:   return set_string_binary(obj, o, val, dst);
yading@11:     case AV_OPT_TYPE_FLAGS:
yading@11:     case AV_OPT_TYPE_INT:
yading@11:     case AV_OPT_TYPE_INT64:
yading@11:     case AV_OPT_TYPE_FLOAT:
yading@11:     case AV_OPT_TYPE_DOUBLE:
yading@11:     case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
yading@11:     case AV_OPT_TYPE_IMAGE_SIZE:
yading@11:         if (!val || !strcmp(val, "none")) {
yading@11:             *(int *)dst = *((int *)dst + 1) = 0;
yading@11:             return 0;
yading@11:         }
yading@11:         ret = av_parse_video_size(dst, ((int *)dst) + 1, val);
yading@11:         if (ret < 0)
yading@11:             av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
yading@11:         return ret;
yading@11:     case AV_OPT_TYPE_VIDEO_RATE:
yading@11:         if (!val) {
yading@11:             ret = AVERROR(EINVAL);
yading@11:         } else {
yading@11:             ret = av_parse_video_rate(dst, val);
yading@11:         }
yading@11:         if (ret < 0)
yading@11:             av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
yading@11:         return ret;
yading@11:     case AV_OPT_TYPE_PIXEL_FMT:
yading@11:         if (!val || !strcmp(val, "none")) {
yading@11:             ret = AV_PIX_FMT_NONE;
yading@11:         } else {
yading@11:             ret = av_get_pix_fmt(val);
yading@11:             if (ret == AV_PIX_FMT_NONE) {
yading@11:                 char *tail;
yading@11:                 ret = strtol(val, &tail, 0);
yading@11:                 if (*tail || (unsigned)ret >= AV_PIX_FMT_NB) {
yading@11:                     av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as pixel format\n", val);
yading@11:                     return AVERROR(EINVAL);
yading@11:                 }
yading@11:             }
yading@11:         }
yading@11:         *(enum AVPixelFormat *)dst = ret;
yading@11:         return 0;
yading@11:     case AV_OPT_TYPE_SAMPLE_FMT:
yading@11:         if (!val || !strcmp(val, "none")) {
yading@11:             ret = AV_SAMPLE_FMT_NONE;
yading@11:         } else {
yading@11:             ret = av_get_sample_fmt(val);
yading@11:             if (ret == AV_SAMPLE_FMT_NONE) {
yading@11:                 char *tail;
yading@11:                 ret = strtol(val, &tail, 0);
yading@11:                 if (*tail || (unsigned)ret >= AV_SAMPLE_FMT_NB) {
yading@11:                     av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as sample format\n", val);
yading@11:                     return AVERROR(EINVAL);
yading@11:                 }
yading@11:             }
yading@11:         }
yading@11:         *(enum AVSampleFormat *)dst = ret;
yading@11:         return 0;
yading@11:     case AV_OPT_TYPE_DURATION:
yading@11:         if (!val) {
yading@11:             *(int64_t *)dst = 0;
yading@11:             return 0;
yading@11:         } else {
yading@11:             if ((ret = av_parse_time(dst, val, 1)) < 0)
yading@11:                 av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
yading@11:             return ret;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
yading@11:     return AVERROR(EINVAL);
yading@11: }
yading@11: 
yading@11: #define OPT_EVAL_NUMBER(name, opttype, vartype)\
yading@11:     int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
yading@11:     {\
yading@11:         if (!o || o->type != opttype)\
yading@11:             return AVERROR(EINVAL);\
yading@11:         return set_string_number(obj, obj, o, val, name ## _out);\
yading@11:     }
yading@11: 
yading@11: OPT_EVAL_NUMBER(flags,  AV_OPT_TYPE_FLAGS,    int)
yading@11: OPT_EVAL_NUMBER(int,    AV_OPT_TYPE_INT,      int)
yading@11: OPT_EVAL_NUMBER(int64,  AV_OPT_TYPE_INT64,    int64_t)
yading@11: OPT_EVAL_NUMBER(float,  AV_OPT_TYPE_FLOAT,    float)
yading@11: OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE,   double)
yading@11: OPT_EVAL_NUMBER(q,      AV_OPT_TYPE_RATIONAL, AVRational)
yading@11: 
yading@11: static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
yading@11:                                   int search_flags)
yading@11: {
yading@11:     void *dst, *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11: 
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11: 
yading@11:     dst = ((uint8_t*)target_obj) + o->offset;
yading@11:     return write_number(obj, o, dst, num, den, intnum);
yading@11: }
yading@11: 
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11: const AVOption *av_set_double(void *obj, const char *name, double n)
yading@11: {
yading@11:     const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
yading@11:     if (set_number(obj, name, n, 1, 1, 0) < 0)
yading@11:         return NULL;
yading@11:     return o;
yading@11: }
yading@11: 
yading@11: const AVOption *av_set_q(void *obj, const char *name, AVRational n)
yading@11: {
yading@11:     const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
yading@11:     if (set_number(obj, name, n.num, n.den, 1, 0) < 0)
yading@11:         return NULL;
yading@11:     return o;
yading@11: }
yading@11: 
yading@11: const AVOption *av_set_int(void *obj, const char *name, int64_t n)
yading@11: {
yading@11:     const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
yading@11:     if (set_number(obj, name, 1, 1, n, 0) < 0)
yading@11:         return NULL;
yading@11:     return o;
yading@11: }
yading@11: #endif
yading@11: 
yading@11: int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
yading@11: {
yading@11:     return set_number(obj, name, 1, 1, val, search_flags);
yading@11: }
yading@11: 
yading@11: int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
yading@11: {
yading@11:     return set_number(obj, name, val, 1, 1, search_flags);
yading@11: }
yading@11: 
yading@11: int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
yading@11: {
yading@11:     return set_number(obj, name, val.num, val.den, 1, search_flags);
yading@11: }
yading@11: 
yading@11: int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
yading@11: {
yading@11:     void *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11:     uint8_t *ptr;
yading@11:     uint8_t **dst;
yading@11:     int *lendst;
yading@11: 
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11: 
yading@11:     if (o->type != AV_OPT_TYPE_BINARY)
yading@11:         return AVERROR(EINVAL);
yading@11: 
yading@11:     ptr = len ? av_malloc(len) : NULL;
yading@11:     if (len && !ptr)
yading@11:         return AVERROR(ENOMEM);
yading@11: 
yading@11:     dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
yading@11:     lendst = (int *)(dst + 1);
yading@11: 
yading@11:     av_free(*dst);
yading@11:     *dst = ptr;
yading@11:     *lendst = len;
yading@11:     if (len)
yading@11:         memcpy(ptr, val, len);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
yading@11: {
yading@11:     void *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11: 
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11:     if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "The value set by option '%s' is not an image size.\n", o->name);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11:     if (w<0 || h<0) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11:     *(int *)(((uint8_t *)target_obj)             + o->offset) = w;
yading@11:     *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
yading@11: {
yading@11:     void *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11: 
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11:     if (o->type != AV_OPT_TYPE_VIDEO_RATE) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "The value set by option '%s' is not a video rate.\n", o->name);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11:     if (val.num <= 0 || val.den <= 0)
yading@11:         return AVERROR(EINVAL);
yading@11:     return set_number(obj, name, val.num, val.den, 1, search_flags);
yading@11: }
yading@11: 
yading@11: static int set_format(void *obj, const char *name, int fmt, int search_flags,
yading@11:                       enum AVOptionType type, const char *desc, int nb_fmts)
yading@11: {
yading@11:     void *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0,
yading@11:                                      search_flags, &target_obj);
yading@11:     int min, max;
yading@11:     const AVClass *class = *(AVClass **)obj;
yading@11: 
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11:     if (o->type != type) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "The value set by option '%s' is not a %s format", name, desc);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11: 
yading@11: #if LIBAVUTIL_VERSION_MAJOR < 53
yading@11:     if (class->version && class->version < AV_VERSION_INT(52, 11, 100)) {
yading@11:         min = -1;
yading@11:         max = nb_fmts-1;
yading@11:     } else
yading@11: #endif
yading@11:     {
yading@11:         min = FFMIN(o->min, -1);
yading@11:         max = FFMAX(o->max, nb_fmts-1);
yading@11:     }
yading@11:     if (fmt < min || fmt > max) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
yading@11:                fmt, name, desc, min, max);
yading@11:         return AVERROR(ERANGE);
yading@11:     }
yading@11:     *(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
yading@11: {
yading@11:     return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
yading@11: }
yading@11: 
yading@11: int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
yading@11: {
yading@11:     return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
yading@11: }
yading@11: 
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11: /**
yading@11:  *
yading@11:  * @param buf a buffer which is used for returning non string values as strings, can be NULL
yading@11:  * @param buf_len allocated length in bytes of buf
yading@11:  */
yading@11: const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
yading@11: {
yading@11:     const AVOption *o = av_opt_find(obj, name, NULL, 0, AV_OPT_SEARCH_CHILDREN);
yading@11:     void *dst;
yading@11:     uint8_t *bin;
yading@11:     int len, i;
yading@11:     if (!o)
yading@11:         return NULL;
yading@11:     if (o->type != AV_OPT_TYPE_STRING && (!buf || !buf_len))
yading@11:         return NULL;
yading@11: 
yading@11:     dst= ((uint8_t*)obj) + o->offset;
yading@11:     if (o_out) *o_out= o;
yading@11: 
yading@11:     switch (o->type) {
yading@11:     case AV_OPT_TYPE_FLAGS:     snprintf(buf, buf_len, "0x%08X",*(int    *)dst);break;
yading@11:     case AV_OPT_TYPE_INT:       snprintf(buf, buf_len, "%d" , *(int    *)dst);break;
yading@11:     case AV_OPT_TYPE_INT64:     snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
yading@11:     case AV_OPT_TYPE_FLOAT:     snprintf(buf, buf_len, "%f" , *(float  *)dst);break;
yading@11:     case AV_OPT_TYPE_DOUBLE:    snprintf(buf, buf_len, "%f" , *(double *)dst);break;
yading@11:     case AV_OPT_TYPE_RATIONAL:  snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
yading@11:     case AV_OPT_TYPE_CONST:     snprintf(buf, buf_len, "%f" , o->default_val.dbl);break;
yading@11:     case AV_OPT_TYPE_STRING:    return *(void**)dst;
yading@11:     case AV_OPT_TYPE_BINARY:
yading@11:         len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
yading@11:         if (len >= (buf_len + 1)/2) return NULL;
yading@11:         bin = *(uint8_t**)dst;
yading@11:         for (i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
yading@11:         break;
yading@11:     default: return NULL;
yading@11:     }
yading@11:     return buf;
yading@11: }
yading@11: #endif
yading@11: 
yading@11: int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
yading@11: {
yading@11:     void *dst, *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11:     uint8_t *bin, buf[128];
yading@11:     int len, i, ret;
yading@11:     int64_t i64;
yading@11: 
yading@11:     if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11: 
yading@11:     dst = (uint8_t*)target_obj + o->offset;
yading@11: 
yading@11:     buf[0] = 0;
yading@11:     switch (o->type) {
yading@11:     case AV_OPT_TYPE_FLAGS:     ret = snprintf(buf, sizeof(buf), "0x%08X",  *(int    *)dst);break;
yading@11:     case AV_OPT_TYPE_INT:       ret = snprintf(buf, sizeof(buf), "%d" ,     *(int    *)dst);break;
yading@11:     case AV_OPT_TYPE_INT64:     ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t*)dst);break;
yading@11:     case AV_OPT_TYPE_FLOAT:     ret = snprintf(buf, sizeof(buf), "%f" ,     *(float  *)dst);break;
yading@11:     case AV_OPT_TYPE_DOUBLE:    ret = snprintf(buf, sizeof(buf), "%f" ,     *(double *)dst);break;
yading@11:     case AV_OPT_TYPE_VIDEO_RATE:
yading@11:     case AV_OPT_TYPE_RATIONAL:  ret = snprintf(buf, sizeof(buf), "%d/%d",   ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
yading@11:     case AV_OPT_TYPE_CONST:     ret = snprintf(buf, sizeof(buf), "%f" ,     o->default_val.dbl);break;
yading@11:     case AV_OPT_TYPE_STRING:
yading@11:         if (*(uint8_t**)dst)
yading@11:             *out_val = av_strdup(*(uint8_t**)dst);
yading@11:         else
yading@11:             *out_val = av_strdup("");
yading@11:         return 0;
yading@11:     case AV_OPT_TYPE_BINARY:
yading@11:         len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
yading@11:         if ((uint64_t)len*2 + 1 > INT_MAX)
yading@11:             return AVERROR(EINVAL);
yading@11:         if (!(*out_val = av_malloc(len*2 + 1)))
yading@11:             return AVERROR(ENOMEM);
yading@11:         bin = *(uint8_t**)dst;
yading@11:         for (i = 0; i < len; i++)
yading@11:             snprintf(*out_val + i*2, 3, "%02X", bin[i]);
yading@11:         return 0;
yading@11:     case AV_OPT_TYPE_IMAGE_SIZE:
yading@11:         ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
yading@11:         break;
yading@11:     case AV_OPT_TYPE_PIXEL_FMT:
yading@11:         ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
yading@11:         break;
yading@11:     case AV_OPT_TYPE_SAMPLE_FMT:
yading@11:         ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
yading@11:         break;
yading@11:     case AV_OPT_TYPE_DURATION:
yading@11:         i64 = *(int64_t *)dst;
yading@11:         ret = snprintf(buf, sizeof(buf), "%"PRIi64"d:%02d:%02d.%06d",
yading@11:                        i64 / 3600000000, (int)((i64 / 60000000) % 60),
yading@11:                        (int)((i64 / 1000000) % 60), (int)(i64 % 1000000));
yading@11:         break;
yading@11:     default:
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11: 
yading@11:     if (ret >= sizeof(buf))
yading@11:         return AVERROR(EINVAL);
yading@11:     *out_val = av_strdup(buf);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
yading@11:                       int search_flags)
yading@11: {
yading@11:     void *dst, *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11:     if (!o || !target_obj)
yading@11:         goto error;
yading@11: 
yading@11:     dst = ((uint8_t*)target_obj) + o->offset;
yading@11: 
yading@11:     if (o_out) *o_out= o;
yading@11: 
yading@11:     return read_number(o, dst, num, den, intnum);
yading@11: 
yading@11: error:
yading@11:     *den=*intnum=0;
yading@11:     return -1;
yading@11: }
yading@11: 
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11: double av_get_double(void *obj, const char *name, const AVOption **o_out)
yading@11: {
yading@11:     int64_t intnum=1;
yading@11:     double num=1;
yading@11:     int den=1;
yading@11: 
yading@11:     if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
yading@11:         return NAN;
yading@11:     return num*intnum/den;
yading@11: }
yading@11: 
yading@11: AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
yading@11: {
yading@11:     int64_t intnum=1;
yading@11:     double num=1;
yading@11:     int den=1;
yading@11: 
yading@11:     if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
yading@11:         return (AVRational){0, 0};
yading@11:     if (num == 1.0 && (int)intnum == intnum)
yading@11:         return (AVRational){intnum, den};
yading@11:     else
yading@11:         return av_d2q(num*intnum/den, 1<<24);
yading@11: }
yading@11: 
yading@11: int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
yading@11: {
yading@11:     int64_t intnum=1;
yading@11:     double num=1;
yading@11:     int den=1;
yading@11: 
yading@11:     if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
yading@11:         return -1;
yading@11:     return num*intnum/den;
yading@11: }
yading@11: #endif
yading@11: 
yading@11: int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
yading@11: {
yading@11:     int64_t intnum = 1;
yading@11:     double     num = 1;
yading@11:     int   ret, den = 1;
yading@11: 
yading@11:     if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
yading@11:         return ret;
yading@11:     *out_val = num*intnum/den;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
yading@11: {
yading@11:     int64_t intnum = 1;
yading@11:     double     num = 1;
yading@11:     int   ret, den = 1;
yading@11: 
yading@11:     if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
yading@11:         return ret;
yading@11:     *out_val = num*intnum/den;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
yading@11: {
yading@11:     int64_t intnum = 1;
yading@11:     double     num = 1;
yading@11:     int   ret, den = 1;
yading@11: 
yading@11:     if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
yading@11:         return ret;
yading@11: 
yading@11:     if (num == 1.0 && (int)intnum == intnum)
yading@11:         *out_val = (AVRational){intnum, den};
yading@11:     else
yading@11:         *out_val = av_d2q(num*intnum/den, 1<<24);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
yading@11: {
yading@11:     void *dst, *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11:     if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "The value for option '%s' is not an image size.\n", name);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11: 
yading@11:     dst = ((uint8_t*)target_obj) + o->offset;
yading@11:     if (w_out) *w_out = *(int *)dst;
yading@11:     if (h_out) *h_out = *((int *)dst+1);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
yading@11: {
yading@11:     int64_t intnum = 1;
yading@11:     double     num = 1;
yading@11:     int   ret, den = 1;
yading@11: 
yading@11:     if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
yading@11:         return ret;
yading@11: 
yading@11:     if (num == 1.0 && (int)intnum == intnum)
yading@11:         *out_val = (AVRational){intnum, den};
yading@11:     else
yading@11:         *out_val = av_d2q(num*intnum/den, 1<<24);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
yading@11:                       enum AVOptionType type, const char *desc)
yading@11: {
yading@11:     void *dst, *target_obj;
yading@11:     const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
yading@11:     if (!o || !target_obj)
yading@11:         return AVERROR_OPTION_NOT_FOUND;
yading@11:     if (o->type != type) {
yading@11:         av_log(obj, AV_LOG_ERROR,
yading@11:                "The value for option '%s' is not a %s format.\n", desc, name);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11: 
yading@11:     dst = ((uint8_t*)target_obj) + o->offset;
yading@11:     *out_fmt = *(int *)dst;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
yading@11: {
yading@11:     return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
yading@11: }
yading@11: 
yading@11: int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
yading@11: {
yading@11:     return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
yading@11: }
yading@11: 
yading@11: int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
yading@11: {
yading@11:     const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
yading@11:     const AVOption *flag  = av_opt_find(obj, flag_name,
yading@11:                                         field ? field->unit : NULL, 0, 0);
yading@11:     int64_t res;
yading@11: 
yading@11:     if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
yading@11:         av_opt_get_int(obj, field_name, 0, &res) < 0)
yading@11:         return 0;
yading@11:     return res & flag->default_val.i64;
yading@11: }
yading@11: 
yading@11: static void log_value(void *av_log_obj, int level, double d)
yading@11: {
yading@11:     if      (d == INT_MAX) {
yading@11:         av_log(av_log_obj, level, "INT_MAX");
yading@11:     } else if (d == INT_MIN) {
yading@11:         av_log(av_log_obj, level, "INT_MIN");
yading@11:     } else if (d == (double)INT64_MAX) {
yading@11:         av_log(av_log_obj, level, "I64_MAX");
yading@11:     } else if (d == INT64_MIN) {
yading@11:         av_log(av_log_obj, level, "I64_MIN");
yading@11:     } else if (d == FLT_MAX) {
yading@11:         av_log(av_log_obj, level, "FLT_MAX");
yading@11:     } else if (d == FLT_MIN) {
yading@11:         av_log(av_log_obj, level, "FLT_MIN");
yading@11:     } else {
yading@11:         av_log(av_log_obj, level, "%g", d);
yading@11:     }
yading@11: }
yading@11: 
yading@11: static void opt_list(void *obj, void *av_log_obj, const char *unit,
yading@11:                      int req_flags, int rej_flags)
yading@11: {
yading@11:     const AVOption *opt=NULL;
yading@11:     AVOptionRanges *r;
yading@11:     int i;
yading@11: 
yading@11:     while ((opt = av_opt_next(obj, opt))) {
yading@11:         if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
yading@11:             continue;
yading@11: 
yading@11:         /* Don't print CONST's on level one.
yading@11:          * Don't print anything but CONST's on level two.
yading@11:          * Only print items from the requested unit.
yading@11:          */
yading@11:         if (!unit && opt->type==AV_OPT_TYPE_CONST)
yading@11:             continue;
yading@11:         else if (unit && opt->type!=AV_OPT_TYPE_CONST)
yading@11:             continue;
yading@11:         else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
yading@11:             continue;
yading@11:         else if (unit && opt->type == AV_OPT_TYPE_CONST)
yading@11:             av_log(av_log_obj, AV_LOG_INFO, "     %-15s ", opt->name);
yading@11:         else
yading@11:             av_log(av_log_obj, AV_LOG_INFO, "  %s%-17s ",
yading@11:                    (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
yading@11:                    opt->name);
yading@11: 
yading@11:         switch (opt->type) {
yading@11:             case AV_OPT_TYPE_FLAGS:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_INT:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_INT64:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_DOUBLE:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_FLOAT:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_STRING:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_RATIONAL:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_BINARY:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_IMAGE_SIZE:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_VIDEO_RATE:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_PIXEL_FMT:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_SAMPLE_FMT:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_DURATION:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_CONST:
yading@11:             default:
yading@11:                 av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
yading@11:                 break;
yading@11:         }
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.');
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM   ) ? 'V' : '.');
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM   ) ? 'A' : '.');
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
yading@11: 
yading@11:         if (opt->help)
yading@11:             av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
yading@11: 
yading@11:         if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
yading@11:             switch (opt->type) {
yading@11:             case AV_OPT_TYPE_INT:
yading@11:             case AV_OPT_TYPE_INT64:
yading@11:             case AV_OPT_TYPE_DOUBLE:
yading@11:             case AV_OPT_TYPE_FLOAT:
yading@11:             case AV_OPT_TYPE_RATIONAL:
yading@11:                 for (i = 0; i < r->nb_ranges; i++) {
yading@11:                     av_log(av_log_obj, AV_LOG_INFO, " (from ");
yading@11:                     log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
yading@11:                     av_log(av_log_obj, AV_LOG_INFO, " to ");
yading@11:                     log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
yading@11:                     av_log(av_log_obj, AV_LOG_INFO, ")");
yading@11:                 }
yading@11:                 break;
yading@11:             }
yading@11:             av_opt_freep_ranges(&r);
yading@11:         }
yading@11: 
yading@11:         av_log(av_log_obj, AV_LOG_INFO, "\n");
yading@11:         if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
yading@11:             opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
yading@11:         }
yading@11:     }
yading@11: }
yading@11: 
yading@11: int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
yading@11: {
yading@11:     if (!obj)
yading@11:         return -1;
yading@11: 
yading@11:     av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
yading@11: 
yading@11:     opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: void av_opt_set_defaults(void *s)
yading@11: {
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11:     av_opt_set_defaults2(s, 0, 0);
yading@11: }
yading@11: 
yading@11: void av_opt_set_defaults2(void *s, int mask, int flags)
yading@11: {
yading@11: #endif
yading@11:     const AVClass *class = *(AVClass **)s;
yading@11:     const AVOption *opt = NULL;
yading@11:     while ((opt = av_opt_next(s, opt)) != NULL) {
yading@11: #if FF_API_OLD_AVOPTIONS
yading@11:         if ((opt->flags & mask) != flags)
yading@11:             continue;
yading@11: #endif
yading@11:         switch (opt->type) {
yading@11:             case AV_OPT_TYPE_CONST:
yading@11:                 /* Nothing to be done here */
yading@11:             break;
yading@11:             case AV_OPT_TYPE_FLAGS:
yading@11:             case AV_OPT_TYPE_INT:
yading@11:             case AV_OPT_TYPE_INT64:
yading@11:             case AV_OPT_TYPE_DURATION:
yading@11:                 av_opt_set_int(s, opt->name, opt->default_val.i64, 0);
yading@11:             break;
yading@11:             case AV_OPT_TYPE_DOUBLE:
yading@11:             case AV_OPT_TYPE_FLOAT: {
yading@11:                 double val;
yading@11:                 val = opt->default_val.dbl;
yading@11:                 av_opt_set_double(s, opt->name, val, 0);
yading@11:             }
yading@11:             break;
yading@11:             case AV_OPT_TYPE_RATIONAL: {
yading@11:                 AVRational val;
yading@11:                 val = av_d2q(opt->default_val.dbl, INT_MAX);
yading@11:                 av_opt_set_q(s, opt->name, val, 0);
yading@11:             }
yading@11:             break;
yading@11:             case AV_OPT_TYPE_STRING:
yading@11:             case AV_OPT_TYPE_IMAGE_SIZE:
yading@11:             case AV_OPT_TYPE_VIDEO_RATE:
yading@11:                 av_opt_set(s, opt->name, opt->default_val.str, 0);
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_PIXEL_FMT:
yading@11: #if LIBAVUTIL_VERSION_MAJOR < 53
yading@11:                 if (class->version && class->version < AV_VERSION_INT(52, 10, 100))
yading@11:                     av_opt_set(s, opt->name, opt->default_val.str, 0);
yading@11:                 else
yading@11: #endif
yading@11:                     av_opt_set_pixel_fmt(s, opt->name, opt->default_val.i64, 0);
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_SAMPLE_FMT:
yading@11: #if LIBAVUTIL_VERSION_MAJOR < 53
yading@11:                 if (class->version && class->version < AV_VERSION_INT(52, 10, 100))
yading@11:                     av_opt_set(s, opt->name, opt->default_val.str, 0);
yading@11:                 else
yading@11: #endif
yading@11:                     av_opt_set_sample_fmt(s, opt->name, opt->default_val.i64, 0);
yading@11:                 break;
yading@11:             case AV_OPT_TYPE_BINARY:
yading@11:                 /* Cannot set default for binary */
yading@11:             break;
yading@11:             default:
yading@11:                 av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
yading@11:         }
yading@11:     }
yading@11: }
yading@11: 
yading@11: /**
yading@11:  * Store the value in the field in ctx that is named like key.
yading@11:  * ctx must be an AVClass context, storing is done using AVOptions.
yading@11:  *
yading@11:  * @param buf the string to parse, buf will be updated to point at the
yading@11:  * separator just after the parsed key/value pair
yading@11:  * @param key_val_sep a 0-terminated list of characters used to
yading@11:  * separate key from value
yading@11:  * @param pairs_sep a 0-terminated list of characters used to separate
yading@11:  * two pairs from each other
yading@11:  * @return 0 if the key/value pair has been successfully parsed and
yading@11:  * set, or a negative value corresponding to an AVERROR code in case
yading@11:  * of error:
yading@11:  * AVERROR(EINVAL) if the key/value pair cannot be parsed,
yading@11:  * the error code issued by av_opt_set() if the key/value pair
yading@11:  * cannot be set
yading@11:  */
yading@11: static int parse_key_value_pair(void *ctx, const char **buf,
yading@11:                                 const char *key_val_sep, const char *pairs_sep)
yading@11: {
yading@11:     char *key = av_get_token(buf, key_val_sep);
yading@11:     char *val;
yading@11:     int ret;
yading@11: 
yading@11:     if (!key)
yading@11:         return AVERROR(ENOMEM);
yading@11: 
yading@11:     if (*key && strspn(*buf, key_val_sep)) {
yading@11:         (*buf)++;
yading@11:         val = av_get_token(buf, pairs_sep);
yading@11:         if (!val) {
yading@11:             av_freep(&key);
yading@11:             return AVERROR(ENOMEM);
yading@11:         }
yading@11:     } else {
yading@11:         av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
yading@11:         av_free(key);
yading@11:         return AVERROR(EINVAL);
yading@11:     }
yading@11: 
yading@11:     av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
yading@11: 
yading@11:     ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
yading@11:     if (ret == AVERROR_OPTION_NOT_FOUND)
yading@11:         av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
yading@11: 
yading@11:     av_free(key);
yading@11:     av_free(val);
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: int av_set_options_string(void *ctx, const char *opts,
yading@11:                           const char *key_val_sep, const char *pairs_sep)
yading@11: {
yading@11:     int ret, count = 0;
yading@11: 
yading@11:     if (!opts)
yading@11:         return 0;
yading@11: 
yading@11:     while (*opts) {
yading@11:         if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
yading@11:             return ret;
yading@11:         count++;
yading@11: 
yading@11:         if (*opts)
yading@11:             opts++;
yading@11:     }
yading@11: 
yading@11:     return count;
yading@11: }
yading@11: 
yading@11: #define WHITESPACES " \n\t"
yading@11: 
yading@11: static int is_key_char(char c)
yading@11: {
yading@11:     return (unsigned)((c | 32) - 'a') < 26 ||
yading@11:            (unsigned)(c - '0') < 10 ||
yading@11:            c == '-' || c == '_' || c == '/' || c == '.';
yading@11: }
yading@11: 
yading@11: /**
yading@11:  * Read a key from a string.
yading@11:  *
yading@11:  * The key consists of is_key_char characters and must be terminated by a
yading@11:  * character from the delim string; spaces are ignored.
yading@11:  *
yading@11:  * @return  0 for success (even with ellipsis), <0 for failure
yading@11:  */
yading@11: static int get_key(const char **ropts, const char *delim, char **rkey)
yading@11: {
yading@11:     const char *opts = *ropts;
yading@11:     const char *key_start, *key_end;
yading@11: 
yading@11:     key_start = opts += strspn(opts, WHITESPACES);
yading@11:     while (is_key_char(*opts))
yading@11:         opts++;
yading@11:     key_end = opts;
yading@11:     opts += strspn(opts, WHITESPACES);
yading@11:     if (!*opts || !strchr(delim, *opts))
yading@11:         return AVERROR(EINVAL);
yading@11:     opts++;
yading@11:     if (!(*rkey = av_malloc(key_end - key_start + 1)))
yading@11:         return AVERROR(ENOMEM);
yading@11:     memcpy(*rkey, key_start, key_end - key_start);
yading@11:     (*rkey)[key_end - key_start] = 0;
yading@11:     *ropts = opts;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_get_key_value(const char **ropts,
yading@11:                          const char *key_val_sep, const char *pairs_sep,
yading@11:                          unsigned flags,
yading@11:                          char **rkey, char **rval)
yading@11: {
yading@11:     int ret;
yading@11:     char *key = NULL, *val;
yading@11:     const char *opts = *ropts;
yading@11: 
yading@11:     if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
yading@11:         !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
yading@11:         return AVERROR(EINVAL);
yading@11:     if (!(val = av_get_token(&opts, pairs_sep))) {
yading@11:         av_free(key);
yading@11:         return AVERROR(ENOMEM);
yading@11:     }
yading@11:     *ropts = opts;
yading@11:     *rkey  = key;
yading@11:     *rval  = val;
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: int av_opt_set_from_string(void *ctx, const char *opts,
yading@11:                            const char *const *shorthand,
yading@11:                            const char *key_val_sep, const char *pairs_sep)
yading@11: {
yading@11:     int ret, count = 0;
yading@11:     const char *dummy_shorthand = NULL;
yading@11:     char *av_uninit(parsed_key), *av_uninit(value);
yading@11:     const char *key;
yading@11: 
yading@11:     if (!opts)
yading@11:         return 0;
yading@11:     if (!shorthand)
yading@11:         shorthand = &dummy_shorthand;
yading@11: 
yading@11:     while (*opts) {
yading@11:         ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
yading@11:                                    *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
yading@11:                                    &parsed_key, &value);
yading@11:         if (ret < 0) {
yading@11:             if (ret == AVERROR(EINVAL))
yading@11:                 av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
yading@11:             else
yading@11:                 av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
yading@11:                        av_err2str(ret));
yading@11:             return ret;
yading@11:         }
yading@11:         if (*opts)
yading@11:             opts++;
yading@11:         if (parsed_key) {
yading@11:             key = parsed_key;
yading@11:             while (*shorthand) /* discard all remaining shorthand */
yading@11:                 shorthand++;
yading@11:         } else {
yading@11:             key = *(shorthand++);
yading@11:         }
yading@11: 
yading@11:         av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
yading@11:         if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
yading@11:             if (ret == AVERROR_OPTION_NOT_FOUND)
yading@11:                 av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
yading@11:             av_free(value);
yading@11:             av_free(parsed_key);
yading@11:             return ret;
yading@11:         }
yading@11: 
yading@11:         av_free(value);
yading@11:         av_free(parsed_key);
yading@11:         count++;
yading@11:     }
yading@11:     return count;
yading@11: }
yading@11: 
yading@11: void av_opt_free(void *obj)
yading@11: {
yading@11:     const AVOption *o = NULL;
yading@11:     while ((o = av_opt_next(obj, o)))
yading@11:         if (o->type == AV_OPT_TYPE_STRING || o->type == AV_OPT_TYPE_BINARY)
yading@11:             av_freep((uint8_t *)obj + o->offset);
yading@11: }
yading@11: 
yading@11: int av_opt_set_dict(void *obj, AVDictionary **options)
yading@11: {
yading@11:     AVDictionaryEntry *t = NULL;
yading@11:     AVDictionary    *tmp = NULL;
yading@11:     int ret = 0;
yading@11: 
yading@11:     while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
yading@11:         ret = av_opt_set(obj, t->key, t->value, 0);
yading@11:         if (ret == AVERROR_OPTION_NOT_FOUND)
yading@11:             av_dict_set(&tmp, t->key, t->value, 0);
yading@11:         else if (ret < 0) {
yading@11:             av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
yading@11:             break;
yading@11:         }
yading@11:         ret = 0;
yading@11:     }
yading@11:     av_dict_free(options);
yading@11:     *options = tmp;
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
yading@11:                             int opt_flags, int search_flags)
yading@11: {
yading@11:     return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
yading@11: }
yading@11: 
yading@11: const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
yading@11:                              int opt_flags, int search_flags, void **target_obj)
yading@11: {
yading@11:     const AVClass  *c;
yading@11:     const AVOption *o = NULL;
yading@11: 
yading@11:     if(!obj)
yading@11:         return NULL;
yading@11: 
yading@11:     c= *(AVClass**)obj;
yading@11: 
yading@11:     if (search_flags & AV_OPT_SEARCH_CHILDREN) {
yading@11:         if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
yading@11:             const AVClass *child = NULL;
yading@11:             while (child = av_opt_child_class_next(c, child))
yading@11:                 if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
yading@11:                     return o;
yading@11:         } else {
yading@11:             void *child = NULL;
yading@11:             while (child = av_opt_child_next(obj, child))
yading@11:                 if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
yading@11:                     return o;
yading@11:         }
yading@11:     }
yading@11: 
yading@11:     while (o = av_opt_next(obj, o)) {
yading@11:         if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
yading@11:             ((!unit && o->type != AV_OPT_TYPE_CONST) ||
yading@11:              (unit  && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
yading@11:             if (target_obj) {
yading@11:                 if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
yading@11:                     *target_obj = obj;
yading@11:                 else
yading@11:                     *target_obj = NULL;
yading@11:             }
yading@11:             return o;
yading@11:         }
yading@11:     }
yading@11:     return NULL;
yading@11: }
yading@11: 
yading@11: void *av_opt_child_next(void *obj, void *prev)
yading@11: {
yading@11:     const AVClass *c = *(AVClass**)obj;
yading@11:     if (c->child_next)
yading@11:         return c->child_next(obj, prev);
yading@11:     return NULL;
yading@11: }
yading@11: 
yading@11: const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
yading@11: {
yading@11:     if (parent->child_class_next)
yading@11:         return parent->child_class_next(prev);
yading@11:     return NULL;
yading@11: }
yading@11: 
yading@11: void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
yading@11: {
yading@11:     const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
yading@11:     if(!opt)
yading@11:         return NULL;
yading@11:     return (uint8_t*)obj + opt->offset;
yading@11: }
yading@11: 
yading@11: int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
yading@11: {
yading@11:     const AVClass *c = *(AVClass**)obj;
yading@11:     int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
yading@11: 
yading@11:     if (c->version > (52 << 16 | 11 << 8))
yading@11:         callback = c->query_ranges;
yading@11: 
yading@11:     if (!callback)
yading@11:         callback = av_opt_query_ranges_default;
yading@11: 
yading@11:     return callback(ranges_arg, obj, key, flags);
yading@11: }
yading@11: 
yading@11: int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
yading@11: {
yading@11:     AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
yading@11:     AVOptionRange **range_array = av_mallocz(sizeof(void*));
yading@11:     AVOptionRange *range = av_mallocz(sizeof(*range));
yading@11:     const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
yading@11:     int ret;
yading@11: 
yading@11:     *ranges_arg = NULL;
yading@11: 
yading@11:     if (!ranges || !range || !range_array || !field) {
yading@11:         ret = AVERROR(ENOMEM);
yading@11:         goto fail;
yading@11:     }
yading@11: 
yading@11:     ranges->range = range_array;
yading@11:     ranges->range[0] = range;
yading@11:     ranges->nb_ranges = 1;
yading@11:     range->is_range = 1;
yading@11:     range->value_min = field->min;
yading@11:     range->value_max = field->max;
yading@11: 
yading@11:     switch (field->type) {
yading@11:     case AV_OPT_TYPE_INT:
yading@11:     case AV_OPT_TYPE_INT64:
yading@11:     case AV_OPT_TYPE_PIXEL_FMT:
yading@11:     case AV_OPT_TYPE_SAMPLE_FMT:
yading@11:     case AV_OPT_TYPE_FLOAT:
yading@11:     case AV_OPT_TYPE_DOUBLE:
yading@11:     case AV_OPT_TYPE_DURATION:
yading@11:         break;
yading@11:     case AV_OPT_TYPE_STRING:
yading@11:         range->component_min = 0;
yading@11:         range->component_max = 0x10FFFF; // max unicode value
yading@11:         range->value_min = -1;
yading@11:         range->value_max = INT_MAX;
yading@11:         break;
yading@11:     case AV_OPT_TYPE_RATIONAL:
yading@11:         range->component_min = INT_MIN;
yading@11:         range->component_max = INT_MAX;
yading@11:         break;
yading@11:     case AV_OPT_TYPE_IMAGE_SIZE:
yading@11:         range->component_min = 0;
yading@11:         range->component_max = INT_MAX/128/8;
yading@11:         range->value_min = 0;
yading@11:         range->value_max = INT_MAX/8;
yading@11:         break;
yading@11:     case AV_OPT_TYPE_VIDEO_RATE:
yading@11:         range->component_min = 1;
yading@11:         range->component_max = INT_MAX;
yading@11:         range->value_min = 1;
yading@11:         range->value_max = INT_MAX;
yading@11:         break;
yading@11:     default:
yading@11:         ret = AVERROR(ENOSYS);
yading@11:         goto fail;
yading@11:     }
yading@11: 
yading@11:     *ranges_arg = ranges;
yading@11:     return 0;
yading@11: fail:
yading@11:     av_free(ranges);
yading@11:     av_free(range);
yading@11:     av_free(range_array);
yading@11:     return ret;
yading@11: }
yading@11: 
yading@11: void av_opt_freep_ranges(AVOptionRanges **rangesp)
yading@11: {
yading@11:     int i;
yading@11:     AVOptionRanges *ranges = *rangesp;
yading@11: 
yading@11:     for (i = 0; i < ranges->nb_ranges; i++) {
yading@11:         AVOptionRange *range = ranges->range[i];
yading@11:         av_freep(&range->str);
yading@11:         av_freep(&ranges->range[i]);
yading@11:     }
yading@11:     av_freep(&ranges->range);
yading@11:     av_freep(rangesp);
yading@11: }
yading@11: 
yading@11: #ifdef TEST
yading@11: 
yading@11: typedef struct TestContext
yading@11: {
yading@11:     const AVClass *class;
yading@11:     int num;
yading@11:     int toggle;
yading@11:     char *string;
yading@11:     int flags;
yading@11:     AVRational rational;
yading@11:     AVRational video_rate;
yading@11:     int w, h;
yading@11:     enum AVPixelFormat pix_fmt;
yading@11:     enum AVSampleFormat sample_fmt;
yading@11:     int64_t duration;
yading@11: } TestContext;
yading@11: 
yading@11: #define OFFSET(x) offsetof(TestContext, x)
yading@11: 
yading@11: #define TEST_FLAG_COOL 01
yading@11: #define TEST_FLAG_LAME 02
yading@11: #define TEST_FLAG_MU   04
yading@11: 
yading@11: static const AVOption test_options[]= {
yading@11: {"num",      "set num",        OFFSET(num),      AV_OPT_TYPE_INT,      {.i64 = 0},       0,        100                 },
yading@11: {"toggle",   "set toggle",     OFFSET(toggle),   AV_OPT_TYPE_INT,      {.i64 = 0},       0,        1                   },
yading@11: {"rational", "set rational",   OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 0},       0,        10                  },
yading@11: {"string",   "set string",     OFFSET(string),   AV_OPT_TYPE_STRING,   {.str = "default"}, CHAR_MIN, CHAR_MAX          },
yading@11: {"flags",    "set flags",      OFFSET(flags),    AV_OPT_TYPE_FLAGS,    {.i64 = 0},       0,        INT_MAX, 0, "flags" },
yading@11: {"cool",     "set cool flag ", 0,                AV_OPT_TYPE_CONST,    {.i64 = TEST_FLAG_COOL}, INT_MIN,  INT_MAX, 0, "flags" },
yading@11: {"lame",     "set lame flag ", 0,                AV_OPT_TYPE_CONST,    {.i64 = TEST_FLAG_LAME}, INT_MIN,  INT_MAX, 0, "flags" },
yading@11: {"mu",       "set mu flag ",   0,                AV_OPT_TYPE_CONST,    {.i64 = TEST_FLAG_MU},   INT_MIN,  INT_MAX, 0, "flags" },
yading@11: {"size",     "set size",       OFFSET(w),        AV_OPT_TYPE_IMAGE_SIZE,{0},             0,        0                   },
yading@11: {"pix_fmt",  "set pixfmt",     OFFSET(pix_fmt),  AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_NONE}, -1, AV_PIX_FMT_NB-1},
yading@11: {"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_NONE}, -1, AV_SAMPLE_FMT_NB-1},
yading@11: {"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE,  {.str = "25"}, 0,     0                   },
yading@11: {"duration", "set duration",   OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX},
yading@11: {NULL},
yading@11: };
yading@11: 
yading@11: static const char *test_get_name(void *ctx)
yading@11: {
yading@11:     return "test";
yading@11: }
yading@11: 
yading@11: static const AVClass test_class = {
yading@11:     "TestContext",
yading@11:     test_get_name,
yading@11:     test_options
yading@11: };
yading@11: 
yading@11: int main(void)
yading@11: {
yading@11:     int i;
yading@11: 
yading@11:     printf("\nTesting av_set_options_string()\n");
yading@11:     {
yading@11:         TestContext test_ctx = { 0 };
yading@11:         const char *options[] = {
yading@11:             "",
yading@11:             ":",
yading@11:             "=",
yading@11:             "foo=:",
yading@11:             ":=foo",
yading@11:             "=foo",
yading@11:             "foo=",
yading@11:             "foo",
yading@11:             "foo=val",
yading@11:             "foo==val",
yading@11:             "toggle=:",
yading@11:             "string=:",
yading@11:             "toggle=1 : foo",
yading@11:             "toggle=100",
yading@11:             "toggle==1",
yading@11:             "flags=+mu-lame : num=42: toggle=0",
yading@11:             "num=42 : string=blahblah",
yading@11:             "rational=0 : rational=1/2 : rational=1/-1",
yading@11:             "rational=-1/0",
yading@11:             "size=1024x768",
yading@11:             "size=pal",
yading@11:             "size=bogus",
yading@11:             "pix_fmt=yuv420p",
yading@11:             "pix_fmt=2",
yading@11:             "pix_fmt=bogus",
yading@11:             "sample_fmt=s16",
yading@11:             "sample_fmt=2",
yading@11:             "sample_fmt=bogus",
yading@11:             "video_rate=pal",
yading@11:             "video_rate=25",
yading@11:             "video_rate=30000/1001",
yading@11:             "video_rate=30/1.001",
yading@11:             "video_rate=bogus",
yading@11:             "duration=bogus",
yading@11:             "duration=123.45",
yading@11:             "duration=1\\:23\\:45.67",
yading@11:         };
yading@11: 
yading@11:         test_ctx.class = &test_class;
yading@11:         av_opt_set_defaults(&test_ctx);
yading@11: 
yading@11:         av_log_set_level(AV_LOG_DEBUG);
yading@11: 
yading@11:         for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
yading@11:             av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
yading@11:             if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
yading@11:                 av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
yading@11:             printf("\n");
yading@11:         }
yading@11:         av_freep(&test_ctx.string);
yading@11:     }
yading@11: 
yading@11:     printf("\nTesting av_opt_set_from_string()\n");
yading@11:     {
yading@11:         TestContext test_ctx = { 0 };
yading@11:         const char *options[] = {
yading@11:             "",
yading@11:             "5",
yading@11:             "5:hello",
yading@11:             "5:hello:size=pal",
yading@11:             "5:size=pal:hello",
yading@11:             ":",
yading@11:             "=",
yading@11:             " 5 : hello : size = pal ",
yading@11:             "a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
yading@11:         };
yading@11:         const char *shorthand[] = { "num", "string", NULL };
yading@11: 
yading@11:         test_ctx.class = &test_class;
yading@11:         av_opt_set_defaults(&test_ctx);
yading@11:         test_ctx.string = av_strdup("default");
yading@11: 
yading@11:         av_log_set_level(AV_LOG_DEBUG);
yading@11: 
yading@11:         for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
yading@11:             av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
yading@11:             if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
yading@11:                 av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
yading@11:             printf("\n");
yading@11:         }
yading@11:         av_freep(&test_ctx.string);
yading@11:     }
yading@11: 
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: #endif