* AVOptions
* Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* @author Michael Niedermayer <michaelni@gmx.at>
*/
-#include "avutil.h"
#include "avstring.h"
-#include "opt.h"
+#include "avutil.h"
+#include "common.h"
+#include "dict.h"
#include "eval.h"
+#include "log.h"
+#include "mathematics.h"
+#include "opt.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)
+const AVOption *av_opt_next(const void *obj, const AVOption *last)
{
- 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;
- }
+ AVClass *class = *(AVClass **)obj;
+ if (!last && class->option && class->option[0].name)
+ return class->option;
+ if (last && last[1].name)
+ return ++last;
return NULL;
}
-const AVOption *av_next_option(void *obj, const AVOption *last)
+static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
{
- if (last && last[1].name) return ++last;
- else if (last) return NULL;
- else return (*(AVClass**)obj)->option;
+ switch (o->type) {
+ case AV_OPT_TYPE_FLAGS:
+ *intnum = *(unsigned int *)dst;
+ return 0;
+ case AV_OPT_TYPE_INT:
+ *intnum = *(int *)dst;
+ return 0;
+ case AV_OPT_TYPE_INT64:
+ *intnum = *(int64_t *)dst;
+ return 0;
+ case AV_OPT_TYPE_FLOAT:
+ *num = *(float *)dst;
+ return 0;
+ case AV_OPT_TYPE_DOUBLE:
+ *num = *(double *)dst;
+ return 0;
+ case AV_OPT_TYPE_RATIONAL:
+ *intnum = ((AVRational *)dst)->num;
+ *den = ((AVRational *)dst)->den;
+ return 0;
+ }
+ return AVERROR(EINVAL);
}
-static int av_set_number2(void *obj, const char *name, double num, int den, int64_t intnum, const AVOption **o_out)
+static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
{
- 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);
+ if (o->type != AV_OPT_TYPE_FLAGS &&
+ (o->max * den < num * intnum || o->min * den > num * intnum)) {
+ av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range\n",
+ num * intnum / den, o->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);
+ case AV_OPT_TYPE_FLAGS:
+ case AV_OPT_TYPE_INT:
+ *(int *)dst = llrint(num / den) * intnum;
+ break;
+ case AV_OPT_TYPE_INT64:
+ *(int64_t *)dst = llrint(num / den) * intnum;
+ break;
+ case AV_OPT_TYPE_FLOAT:
+ *(float *)dst = num * intnum / den;
+ break;
+ case AV_OPT_TYPE_DOUBLE:
+ *(double *)dst = num * intnum / den;
+ break;
+ case AV_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,
0
};
-static const char * const const_names[] = {
+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;
+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)
+static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
{
- 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);
+ int *lendst = (int *)(dst + 1);
+ uint8_t *bin, *ptr;
+ int len = strlen(val);
- 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;
+ av_freep(dst);
+ *lendst = 0;
+
+ if (len & 1)
+ return AVERROR(EINVAL);
+ len /= 2;
+
+ ptr = bin = av_malloc(len);
+ if (!ptr)
+ return AVERROR(ENOMEM);
+ while (*val) {
+ int a = hexchar2int(*val++);
+ int b = hexchar2int(*val++);
+ if (a < 0 || b < 0) {
+ av_free(bin);
+ return AVERROR(EINVAL);
}
- *dst = bin;
- *lendst = len;
- return 0;
+ *ptr++ = (a << 4) | b;
}
- 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;
- }
+ *dst = bin;
+ *lendst = len;
+
+ return 0;
+}
+
+static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
+{
+ av_freep(dst);
+ *dst = av_strdup(val);
+ return *dst ? 0 : AVERROR(ENOMEM);
+}
+
+#define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
+ opt->type == AV_OPT_TYPE_CONST || \
+ opt->type == AV_OPT_TYPE_FLAGS || \
+ opt->type == AV_OPT_TYPE_INT) \
+ ? opt->default_val.i64 \
+ : opt->default_val.dbl)
+
+static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
+{
+ int ret = 0, notfirst = 0;
+ for (;;) {
+ int i, den = 1;
+ char buf[256];
+ int cmd = 0;
+ double d, num = 1;
+ int64_t intnum = 1;
+
+ i = 0;
+ if (*val == '+' || *val == '-') {
+ if (o->type == AV_OPT_TYPE_FLAGS)
+ cmd = *(val++);
+ else if (!notfirst)
+ buf[i++] = *val;
+ }
+
+ for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
+ buf[i] = val[i];
+ buf[i] = 0;
+
+ {
+ const AVOption *o_named = av_opt_find(target_obj, buf, o->unit, 0, 0);
+ if (o_named && o_named->type == AV_OPT_TYPE_CONST)
+ d = DEFAULT_NUMVAL(o_named);
+ else if (!strcmp(buf, "default"))
+ d = DEFAULT_NUMVAL(o);
+ 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_expr_parse_and_eval(&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 (o->type == AV_OPT_TYPE_FLAGS) {
+ read_number(o, dst, NULL, NULL, &intnum);
+ if (cmd == '+')
+ d = intnum | (int64_t)d;
+ else if (cmd == '-')
+ d = intnum & ~(int64_t)d;
+ } else {
+ read_number(o, dst, &num, &den, &intnum);
+ if (cmd == '+')
+ d = notfirst * num * intnum / den + d;
+ else if (cmd == '-')
+ d = notfirst * num * intnum / den - d;
+ }
- if (alloc) {
- av_free(*(void**)(((uint8_t*)obj) + o->offset));
- val= av_strdup(val);
+ if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
+ return ret;
+ val += i;
+ if (!*val)
+ return 0;
+ notfirst = 1;
}
- memcpy(((uint8_t*)obj) + o->offset, &val, sizeof(val));
return 0;
}
-const AVOption *av_set_double(void *obj, const char *name, double n)
+int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
{
- return av_set_number(obj, name, n, 1, 1);
+ void *dst, *target_obj;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+ if (!o || !target_obj)
+ return AVERROR_OPTION_NOT_FOUND;
+ if (!val || o->flags & AV_OPT_FLAG_READONLY)
+ return AVERROR(EINVAL);
+
+ dst = ((uint8_t *)target_obj) + o->offset;
+ switch (o->type) {
+ case AV_OPT_TYPE_STRING:
+ return set_string(obj, o, val, dst);
+ case AV_OPT_TYPE_BINARY:
+ return set_string_binary(obj, o, val, dst);
+ case AV_OPT_TYPE_FLAGS:
+ case AV_OPT_TYPE_INT:
+ case AV_OPT_TYPE_INT64:
+ case AV_OPT_TYPE_FLOAT:
+ case AV_OPT_TYPE_DOUBLE:
+ case AV_OPT_TYPE_RATIONAL:
+ return set_string_number(obj, target_obj, o, val, dst);
+ }
+
+ av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
+ return AVERROR(EINVAL);
+}
+
+#define OPT_EVAL_NUMBER(name, opttype, vartype) \
+int av_opt_eval_ ## name(void *obj, const AVOption *o, \
+ const char *val, vartype *name ## _out) \
+{ \
+ if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY) \
+ return AVERROR(EINVAL); \
+ return set_string_number(obj, obj, o, val, name ## _out); \
}
-const AVOption *av_set_q(void *obj, const char *name, AVRational n)
+OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
+OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
+OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
+OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
+OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
+OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
+
+static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
+ int search_flags)
{
- return av_set_number(obj, name, n.num, n.den, 1);
+ void *dst, *target_obj;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+ if (!o || !target_obj)
+ return AVERROR_OPTION_NOT_FOUND;
+
+ if (o->flags & AV_OPT_FLAG_READONLY)
+ return AVERROR(EINVAL);
+
+ dst = ((uint8_t *)target_obj) + o->offset;
+ return write_number(obj, o, dst, num, den, intnum);
}
-const AVOption *av_set_int(void *obj, const char *name, int64_t n)
+int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
{
- return av_set_number(obj, name, 1, 1, n);
+ return set_number(obj, name, 1, 1, val, search_flags);
}
-/**
- *
- * @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)
+int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
{
- 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;
+ return set_number(obj, name, val, 1, 1, search_flags);
+}
+
+int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
+{
+ return set_number(obj, name, val.num, val.den, 1, search_flags);
+}
+
+int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
+{
+ void *target_obj;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+ uint8_t *ptr;
+ uint8_t **dst;
+ int *lendst;
+
+ if (!o || !target_obj)
+ return AVERROR_OPTION_NOT_FOUND;
+
+ if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY)
+ return AVERROR(EINVAL);
+
+ ptr = av_malloc(len);
+ if (!ptr)
+ return AVERROR(ENOMEM);
- dst= ((uint8_t*)obj) + o->offset;
- if (o_out) *o_out= o;
+ dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
+ lendst = (int *)(dst + 1);
+ av_free(*dst);
+ *dst = ptr;
+ *lendst = len;
+ memcpy(ptr, val, len);
+
+ return 0;
+}
+
+int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val,
+ int search_flags)
+{
+ void *target_obj;
+ AVDictionary **dst;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+ if (!o || !target_obj)
+ return AVERROR_OPTION_NOT_FOUND;
+ if (o->flags & AV_OPT_FLAG_READONLY)
+ return AVERROR(EINVAL);
+
+ dst = (AVDictionary **)(((uint8_t *)target_obj) + o->offset);
+ av_dict_free(dst);
+ av_dict_copy(dst, val, 0);
+
+ return 0;
+}
+
+int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
+{
+ void *dst, *target_obj;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+ uint8_t *bin, buf[128];
+ int len, i, ret;
+
+ if (!o || !target_obj)
+ return AVERROR_OPTION_NOT_FOUND;
+
+ dst = (uint8_t *)target_obj + o->offset;
+
+ buf[0] = 0;
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]);
+ case AV_OPT_TYPE_FLAGS:
+ ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst);
+ break;
+ case AV_OPT_TYPE_INT:
+ ret = snprintf(buf, sizeof(buf), "%d", *(int *)dst);
+ break;
+ case AV_OPT_TYPE_INT64:
+ ret = snprintf(buf, sizeof(buf), "%" PRId64, *(int64_t *)dst);
+ break;
+ case AV_OPT_TYPE_FLOAT:
+ ret = snprintf(buf, sizeof(buf), "%f", *(float *)dst);
+ break;
+ case AV_OPT_TYPE_DOUBLE:
+ ret = snprintf(buf, sizeof(buf), "%f", *(double *)dst);
break;
- default: return NULL;
+ case AV_OPT_TYPE_RATIONAL:
+ ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational *)dst)->num,
+ ((AVRational *)dst)->den);
+ break;
+ case AV_OPT_TYPE_STRING:
+ if (*(uint8_t **)dst)
+ *out_val = av_strdup(*(uint8_t **)dst);
+ else
+ *out_val = av_strdup("");
+ return *out_val ? 0 : AVERROR(ENOMEM);
+ case AV_OPT_TYPE_BINARY:
+ len = *(int *)(((uint8_t *)dst) + sizeof(uint8_t *));
+ if ((uint64_t)len * 2 + 1 > INT_MAX)
+ return AVERROR(EINVAL);
+ if (!(*out_val = av_malloc(len * 2 + 1)))
+ return AVERROR(ENOMEM);
+ bin = *(uint8_t **)dst;
+ for (i = 0; i < len; i++)
+ snprintf(*out_val + i * 2, 3, "%02X", bin[i]);
+ return 0;
+ default:
+ return AVERROR(EINVAL);
}
- return buf;
+
+ if (ret >= sizeof(buf))
+ return AVERROR(EINVAL);
+ *out_val = av_strdup(buf);
+ return *out_val ? 0 : AVERROR(ENOMEM);
}
-static int av_get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum)
+static int get_number(void *obj, const char *name, double *num, int *den, int64_t *intnum,
+ int search_flags)
{
- const AVOption *o= av_find_opt(obj, name, NULL, 0, 0);
- void *dst;
- if (!o || o->offset<=0)
+ void *dst, *target_obj;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+ if (!o || !target_obj)
goto error;
- dst= ((uint8_t*)obj) + o->offset;
+ dst = ((uint8_t *)target_obj) + o->offset;
- if (o_out) *o_out= o;
+ return read_number(o, dst, num, den, intnum);
- 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;
+ *den =
+ *intnum = 0;
return -1;
}
-double av_get_double(void *obj, const char *name, const AVOption **o_out)
+int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
+{
+ int64_t intnum = 1;
+ double num = 1;
+ int ret, den = 1;
+
+ if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0)
+ return ret;
+ *out_val = num * intnum / den;
+ return 0;
+}
+
+int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
{
- int64_t intnum=1;
- double num=1;
- int den=1;
+ int64_t intnum = 1;
+ double num = 1;
+ int ret, den = 1;
- av_get_number(obj, name, o_out, &num, &den, &intnum);
- return num*intnum/den;
+ if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0)
+ return ret;
+ *out_val = num * intnum / den;
+ return 0;
}
-AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
+int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
{
- int64_t intnum=1;
- double num=1;
- int den=1;
+ int64_t intnum = 1;
+ double num = 1;
+ int ret, den = 1;
+
+ if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0)
+ return ret;
- av_get_number(obj, name, o_out, &num, &den, &intnum);
if (num == 1.0 && (int)intnum == intnum)
- return (AVRational){intnum, den};
+ *out_val = (AVRational) { intnum, den };
else
- return av_d2q(num*intnum/den, 1<<24);
+ *out_val = av_d2q(num * intnum / den, 1 << 24);
+ return 0;
}
-int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
+int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
{
- int64_t intnum=1;
- double num=1;
- int den=1;
+ void *target_obj;
+ AVDictionary *src;
+ const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
+
+ if (!o || !target_obj)
+ return AVERROR_OPTION_NOT_FOUND;
+ if (o->type != AV_OPT_TYPE_DICT)
+ return AVERROR(EINVAL);
+
+ src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);
+ av_dict_copy(out_val, src, 0);
- av_get_number(obj, name, o_out, &num, &den, &intnum);
- return num*intnum/den;
+ return 0;
+}
+
+int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
+{
+ const AVOption *field = av_opt_find(obj, field_name, NULL, 0, 0);
+ const AVOption *flag = av_opt_find(obj, flag_name,
+ field ? field->unit : NULL, 0, 0);
+ int64_t res;
+
+ if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
+ av_opt_get_int(obj, field_name, 0, &res) < 0)
+ return 0;
+ return res & flag->default_val.i64;
}
static void opt_list(void *obj, void *av_log_obj, const char *unit,
int req_flags, int rej_flags)
{
- const AVOption *opt=NULL;
+ const AVOption *opt = NULL;
- while ((opt= av_next_option(obj, opt))) {
+ while ((opt = av_opt_next(obj, opt))) {
if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
continue;
* 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)
+ if (!unit && opt->type == AV_OPT_TYPE_CONST)
continue;
- else if (unit && opt->type!=FF_OPT_TYPE_CONST)
+ else if (unit && opt->type != AV_OPT_TYPE_CONST)
continue;
- else if (unit && opt->type==FF_OPT_TYPE_CONST && strcmp(unit, opt->unit))
+ else if (unit && opt->type == AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
continue;
- else if (unit && opt->type == FF_OPT_TYPE_CONST)
+ else if (unit && opt->type == AV_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;
+ case AV_OPT_TYPE_FLAGS:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<flags>");
+ break;
+ case AV_OPT_TYPE_INT:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<int>");
+ break;
+ case AV_OPT_TYPE_INT64:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<int64>");
+ break;
+ case AV_OPT_TYPE_DOUBLE:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<double>");
+ break;
+ case AV_OPT_TYPE_FLOAT:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<float>");
+ break;
+ case AV_OPT_TYPE_STRING:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<string>");
+ break;
+ case AV_OPT_TYPE_RATIONAL:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<rational>");
+ break;
+ case AV_OPT_TYPE_BINARY:
+ av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<binary>");
+ break;
+ case AV_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_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' : '.');
+ av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT) ? 'X' : '.');
+ av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY) ? 'R' : '.');
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) {
+ if (opt->unit && opt->type != AV_OPT_TYPE_CONST)
opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
- }
}
}
if (!obj)
return -1;
- av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
+ 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)
+void av_opt_set_defaults(void *s)
{
const AVOption *opt = NULL;
- while ((opt = av_next_option(s, opt)) != NULL) {
- if ((opt->flags & mask) != flags)
+ while ((opt = av_opt_next(s, opt))) {
+ if (opt->flags & AV_OPT_FLAG_READONLY)
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);
- }
+ case AV_OPT_TYPE_CONST:
+ /* Nothing to be done here */
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);
+ case AV_OPT_TYPE_FLAGS:
+ case AV_OPT_TYPE_INT:
+ case AV_OPT_TYPE_INT64:
+ av_opt_set_int(s, opt->name, opt->default_val.i64, 0);
break;
- case FF_OPT_TYPE_DOUBLE:
- 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);
- }
+ case AV_OPT_TYPE_DOUBLE:
+ case AV_OPT_TYPE_FLOAT:
+ {
+ double val;
+ val = opt->default_val.dbl;
+ av_opt_set_double(s, opt->name, val, 0);
+ }
+ break;
+ case AV_OPT_TYPE_RATIONAL:
+ {
+ AVRational val;
+ val = av_d2q(opt->default_val.dbl, INT_MAX);
+ av_opt_set_q(s, opt->name, val, 0);
+ }
+ break;
+ case AV_OPT_TYPE_STRING:
+ av_opt_set(s, opt->name, opt->default_val.str, 0);
break;
- case FF_OPT_TYPE_STRING:
- case FF_OPT_TYPE_BINARY:
- /* Cannot set default for string as default_val is of type * double */
+ case AV_OPT_TYPE_BINARY:
+ case AV_OPT_TYPE_DICT:
+ /* Cannot set defaults for these types */
break;
- default:
- av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
+ 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);
-}
-
/**
* Store the value in the field in ctx that is named like key.
* ctx must be an AVClass context, storing is done using AVOptions.
* set, or a negative value corresponding to an AVERROR code in case
* of error:
* AVERROR(EINVAL) if the key/value pair cannot be parsed,
- * the error code issued by av_set_string3() if the key/value pair
+ * the error code issued by av_opt_set() if the key/value pair
* cannot be set
*/
static int parse_key_value_pair(void *ctx, const char **buf,
char *val;
int ret;
+ if (!key)
+ return AVERROR(ENOMEM);
+
if (*key && strspn(*buf, key_val_sep)) {
(*buf)++;
val = av_get_token(buf, pairs_sep);
+ if (!val) {
+ av_freep(&key);
+ return AVERROR(ENOMEM);
+ }
} else {
av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
av_free(key);
av_log(ctx, AV_LOG_DEBUG, "Setting value '%s' for key '%s'\n", val, key);
- ret = av_set_string3(ctx, key, val, 1, NULL);
- if (ret == AVERROR(ENOENT))
+ ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN);
+ if (ret == AVERROR_OPTION_NOT_FOUND)
av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
av_free(key);
{
int ret, count = 0;
+ if (!opts)
+ return 0;
+
while (*opts) {
if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
return ret;
return count;
}
-#ifdef TEST
-
-#undef printf
-
-typedef struct TestContext
+void av_opt_free(void *obj)
{
- const AVClass *class;
- int num;
- int toggle;
- char *string;
- int flags;
- AVRational rational;
-} TestContext;
+ const AVOption *o = NULL;
+ while ((o = av_opt_next(obj, o))) {
+ switch (o->type) {
+ case AV_OPT_TYPE_STRING:
+ case AV_OPT_TYPE_BINARY:
+ av_freep((uint8_t *)obj + o->offset);
+ break;
-#define OFFSET(x) offsetof(TestContext, x)
+ case AV_OPT_TYPE_DICT:
+ av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset));
+ break;
-#define TEST_FLAG_COOL 01
-#define TEST_FLAG_LAME 02
-#define TEST_FLAG_MU 04
+ default:
+ break;
+ }
+ }
+}
-static const AVOption test_options[]= {
-{"num", "set num", OFFSET(num), FF_OPT_TYPE_INT, 0, 0, 100 },
-{"toggle", "set toggle", OFFSET(toggle), FF_OPT_TYPE_INT, 0, 0, 1 },
-{"rational", "set rational", OFFSET(rational), FF_OPT_TYPE_RATIONAL, 0, 0, 10 },
-{"string", "set string", OFFSET(string), FF_OPT_TYPE_STRING, 0, CHAR_MIN, CHAR_MAX },
-{"flags", "set flags", OFFSET(flags), FF_OPT_TYPE_FLAGS, 0, 0, INT_MAX, 0, "flags" },
-{"cool", "set cool flag ", 0, FF_OPT_TYPE_CONST, TEST_FLAG_COOL, INT_MIN, INT_MAX, 0, "flags" },
-{"lame", "set lame flag ", 0, FF_OPT_TYPE_CONST, TEST_FLAG_LAME, INT_MIN, INT_MAX, 0, "flags" },
-{"mu", "set mu flag ", 0, FF_OPT_TYPE_CONST, TEST_FLAG_MU, INT_MIN, INT_MAX, 0, "flags" },
-{NULL},
-};
+int av_opt_set_dict(void *obj, AVDictionary **options)
+{
+ AVDictionaryEntry *t = NULL;
+ AVDictionary *tmp = NULL;
+ int ret = 0;
+
+ while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
+ ret = av_opt_set(obj, t->key, t->value, 0);
+ if (ret == AVERROR_OPTION_NOT_FOUND)
+ av_dict_set(&tmp, t->key, t->value, 0);
+ else if (ret < 0) {
+ av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
+ break;
+ }
+ ret = 0;
+ }
+ av_dict_free(options);
+ *options = tmp;
+ return ret;
+}
-static const char *test_get_name(void *ctx)
+const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
+ int opt_flags, int search_flags)
{
- return "test";
+ return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
}
-static const AVClass test_class = {
- "TestContext",
- test_get_name,
- test_options
-};
+const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
+ int opt_flags, int search_flags, void **target_obj)
+{
+ const AVClass *c = *(AVClass **)obj;
+ const AVOption *o = NULL;
+
+ if (!c)
+ return NULL;
-int main(void)
-{
- int i;
-
- printf("\nTesting av_set_options_string()\n");
- {
- TestContext test_ctx;
- const char *options[] = {
- "",
- ":",
- "=",
- "foo=:",
- ":=foo",
- "=foo",
- "foo=",
- "foo",
- "foo=val",
- "foo==val",
- "toggle=:",
- "string=:",
- "toggle=1 : foo",
- "toggle=100",
- "toggle==1",
- "flags=+mu-lame : num=42: toggle=0",
- "num=42 : string=blahblah",
- "rational=0 : rational=1/2 : rational=1/-1",
- "rational=-1/0",
- };
-
- test_ctx.class = &test_class;
- av_opt_set_defaults2(&test_ctx, 0, 0);
- test_ctx.string = av_strdup("default");
-
- av_log_set_level(AV_LOG_DEBUG);
-
- for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
- av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
- if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
- av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
- printf("\n");
+ if (search_flags & AV_OPT_SEARCH_CHILDREN) {
+ if (search_flags & AV_OPT_SEARCH_FAKE_OBJ) {
+ const AVClass *child = NULL;
+ while (child = av_opt_child_class_next(c, child))
+ if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL))
+ return o;
+ } else {
+ void *child = NULL;
+ while (child = av_opt_child_next(obj, child))
+ if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
+ return o;
}
}
- return 0;
+ while (o = av_opt_next(obj, o)) {
+ if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
+ ((!unit && o->type != AV_OPT_TYPE_CONST) ||
+ (unit && o->unit && !strcmp(o->unit, unit)))) {
+ if (target_obj) {
+ if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ))
+ *target_obj = obj;
+ else
+ *target_obj = NULL;
+ }
+ return o;
+ }
+ }
+ return NULL;
}
-#endif
+void *av_opt_child_next(void *obj, void *prev)
+{
+ const AVClass *c = *(AVClass **)obj;
+ if (c->child_next)
+ return c->child_next(obj, prev);
+ return NULL;
+}
+
+const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
+{
+ if (parent->child_class_next)
+ return parent->child_class_next(prev);
+ return NULL;
+}
+
+static int opt_size(enum AVOptionType type)
+{
+ switch (type) {
+ case AV_OPT_TYPE_INT:
+ case AV_OPT_TYPE_FLAGS:
+ return sizeof(int);
+ case AV_OPT_TYPE_INT64:
+ return sizeof(int64_t);
+ case AV_OPT_TYPE_DOUBLE:
+ return sizeof(double);
+ case AV_OPT_TYPE_FLOAT:
+ return sizeof(float);
+ case AV_OPT_TYPE_STRING:
+ return sizeof(uint8_t *);
+ case AV_OPT_TYPE_RATIONAL:
+ return sizeof(AVRational);
+ case AV_OPT_TYPE_BINARY:
+ return sizeof(uint8_t *) + sizeof(int);
+ }
+ return AVERROR(EINVAL);
+}
+
+int av_opt_copy(void *dst, const void *src)
+{
+ const AVOption *o = NULL;
+ const AVClass *c;
+ int ret = 0;
+
+ if (!src)
+ return AVERROR(EINVAL);
+
+ c = *(AVClass **)src;
+ if (!c || c != *(AVClass **)dst)
+ return AVERROR(EINVAL);
+
+ while ((o = av_opt_next(src, o))) {
+ void *field_dst = (uint8_t *)dst + o->offset;
+ void *field_src = (uint8_t *)src + o->offset;
+ uint8_t **field_dst8 = (uint8_t **)field_dst;
+ uint8_t **field_src8 = (uint8_t **)field_src;
+
+ if (o->type == AV_OPT_TYPE_STRING) {
+ set_string(dst, o, *field_src8, field_dst8);
+ if (*field_src8 && !*field_dst8)
+ ret = AVERROR(ENOMEM);
+ } else if (o->type == AV_OPT_TYPE_BINARY) {
+ int len = *(int *)(field_src8 + 1);
+ if (*field_dst8 != *field_src8)
+ av_freep(field_dst8);
+ if (len) {
+ *field_dst8 = av_malloc(len);
+ if (!*field_dst8) {
+ ret = AVERROR(ENOMEM);
+ len = 0;
+ }
+ memcpy(*field_dst8, *field_src8, len);
+ } else {
+ *field_dst8 = NULL;
+ }
+ *(int *)(field_dst8 + 1) = len;
+ } else if (o->type == AV_OPT_TYPE_CONST) {
+ // do nothing
+ } else {
+ int size = opt_size(o->type);
+ if (size < 0)
+ ret = size;
+ else
+ memcpy(field_dst, field_src, size);
+ }
+ }
+ return ret;
+}
projects / ffmpeg / blobdiff