mirror of https://git.ffmpeg.org/ffmpeg.git
1527 lines
49 KiB
C
1527 lines
49 KiB
C
/*
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* AVOptions
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* Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* AVOptions
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#include "avutil.h"
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#include "avstring.h"
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#include "common.h"
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#include "opt.h"
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#include "eval.h"
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#include "dict.h"
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#include "log.h"
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#include "parseutils.h"
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#include "pixdesc.h"
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#include "mathematics.h"
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#include "samplefmt.h"
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#include <float.h>
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#if FF_API_FIND_OPT
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//FIXME order them and do a bin search
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const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
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{
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const AVOption *o = NULL;
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while ((o = av_next_option(v, o))) {
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if (!strcmp(o->name, name) && (!unit || (o->unit && !strcmp(o->unit, unit))) && (o->flags & mask) == flags)
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return o;
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}
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return NULL;
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}
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#endif
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#if FF_API_OLD_AVOPTIONS
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const AVOption *av_next_option(void *obj, const AVOption *last)
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{
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return av_opt_next(obj, last);
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}
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#endif
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const AVOption *av_opt_next(void *obj, const AVOption *last)
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{
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AVClass *class = *(AVClass**)obj;
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if (!last && class->option && class->option[0].name)
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return class->option;
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if (last && last[1].name)
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return ++last;
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return NULL;
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}
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static int read_number(const AVOption *o, void *dst, double *num, int *den, int64_t *intnum)
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{
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switch (o->type) {
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case AV_OPT_TYPE_FLAGS: *intnum = *(unsigned int*)dst;return 0;
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case AV_OPT_TYPE_PIXEL_FMT:
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case AV_OPT_TYPE_SAMPLE_FMT:
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case AV_OPT_TYPE_INT: *intnum = *(int *)dst;return 0;
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case AV_OPT_TYPE_DURATION:
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case AV_OPT_TYPE_INT64: *intnum = *(int64_t *)dst;return 0;
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case AV_OPT_TYPE_FLOAT: *num = *(float *)dst;return 0;
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case AV_OPT_TYPE_DOUBLE: *num = *(double *)dst;return 0;
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case AV_OPT_TYPE_RATIONAL: *intnum = ((AVRational*)dst)->num;
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*den = ((AVRational*)dst)->den;
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return 0;
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case AV_OPT_TYPE_CONST: *num = o->default_val.dbl; return 0;
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}
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return AVERROR(EINVAL);
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}
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static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
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{
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if (o->max*den < num*intnum || o->min*den > num*intnum) {
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av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
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num*intnum/den, o->name, o->min, o->max);
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return AVERROR(ERANGE);
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}
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switch (o->type) {
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case AV_OPT_TYPE_FLAGS:
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case AV_OPT_TYPE_PIXEL_FMT:
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case AV_OPT_TYPE_SAMPLE_FMT:
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case AV_OPT_TYPE_INT: *(int *)dst= llrint(num/den)*intnum; break;
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case AV_OPT_TYPE_DURATION:
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case AV_OPT_TYPE_INT64: *(int64_t *)dst= llrint(num/den)*intnum; break;
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case AV_OPT_TYPE_FLOAT: *(float *)dst= num*intnum/den; break;
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case AV_OPT_TYPE_DOUBLE:*(double *)dst= num*intnum/den; break;
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case AV_OPT_TYPE_RATIONAL:
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if ((int)num == num) *(AVRational*)dst= (AVRational){num*intnum, den};
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else *(AVRational*)dst= av_d2q(num*intnum/den, 1<<24);
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break;
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default:
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return AVERROR(EINVAL);
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}
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return 0;
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}
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static const double const_values[] = {
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M_PI,
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M_E,
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FF_QP2LAMBDA,
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0
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};
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static const char * const const_names[] = {
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"PI",
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"E",
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"QP2LAMBDA",
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0
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};
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static int hexchar2int(char c) {
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if (c >= '0' && c <= '9') return c - '0';
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if (c >= 'a' && c <= 'f') return c - 'a' + 10;
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if (c >= 'A' && c <= 'F') return c - 'A' + 10;
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return -1;
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}
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static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
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{
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int *lendst = (int *)(dst + 1);
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uint8_t *bin, *ptr;
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int len = strlen(val);
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av_freep(dst);
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*lendst = 0;
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if (len & 1)
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return AVERROR(EINVAL);
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len /= 2;
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ptr = bin = av_malloc(len);
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while (*val) {
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int a = hexchar2int(*val++);
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int b = hexchar2int(*val++);
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if (a < 0 || b < 0) {
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av_free(bin);
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return AVERROR(EINVAL);
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}
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*ptr++ = (a << 4) | b;
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}
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*dst = bin;
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*lendst = len;
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return 0;
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}
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static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
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{
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av_freep(dst);
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*dst = av_strdup(val);
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return 0;
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}
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#define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \
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opt->type == AV_OPT_TYPE_CONST || \
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opt->type == AV_OPT_TYPE_FLAGS || \
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opt->type == AV_OPT_TYPE_INT) ? \
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opt->default_val.i64 : opt->default_val.dbl)
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static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
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{
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int ret = 0, notfirst = 0;
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for (;;) {
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int i, den = 1;
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char buf[256];
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int cmd = 0;
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double d, num = 1;
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int64_t intnum = 1;
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i = 0;
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if (*val == '+' || *val == '-') {
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if (o->type == AV_OPT_TYPE_FLAGS)
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cmd = *(val++);
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else if (!notfirst)
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buf[i++] = *val;
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}
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for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
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buf[i] = val[i];
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buf[i] = 0;
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{
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const AVOption *o_named = av_opt_find(target_obj, buf, o->unit, 0, 0);
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if (o_named && o_named->type == AV_OPT_TYPE_CONST)
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d = DEFAULT_NUMVAL(o_named);
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else if (!strcmp(buf, "default")) d = DEFAULT_NUMVAL(o);
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else if (!strcmp(buf, "max" )) d = o->max;
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else if (!strcmp(buf, "min" )) d = o->min;
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else if (!strcmp(buf, "none" )) d = 0;
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else if (!strcmp(buf, "all" )) d = ~0;
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else {
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int res = av_expr_parse_and_eval(&d, buf, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, obj);
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if (res < 0) {
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val);
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return res;
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}
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}
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}
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if (o->type == AV_OPT_TYPE_FLAGS) {
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read_number(o, dst, NULL, NULL, &intnum);
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if (cmd == '+') d = intnum | (int64_t)d;
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else if (cmd == '-') d = intnum &~(int64_t)d;
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} else {
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read_number(o, dst, &num, &den, &intnum);
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if (cmd == '+') d = notfirst*num*intnum/den + d;
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else if (cmd == '-') d = notfirst*num*intnum/den - d;
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}
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if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
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return ret;
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val += i;
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if (!*val)
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return 0;
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notfirst = 1;
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}
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return 0;
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}
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#if FF_API_OLD_AVOPTIONS
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int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
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{
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const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
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if (o_out)
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*o_out = o;
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return av_opt_set(obj, name, val, 0);
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}
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#endif
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int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
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{
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int ret;
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void *dst, *target_obj;
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const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
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if (!o || !target_obj)
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return AVERROR_OPTION_NOT_FOUND;
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if (!val && (o->type != AV_OPT_TYPE_STRING &&
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o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT &&
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o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE &&
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o->type != AV_OPT_TYPE_DURATION))
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return AVERROR(EINVAL);
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dst = ((uint8_t*)target_obj) + o->offset;
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switch (o->type) {
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case AV_OPT_TYPE_STRING: return set_string(obj, o, val, dst);
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case AV_OPT_TYPE_BINARY: return set_string_binary(obj, o, val, dst);
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case AV_OPT_TYPE_FLAGS:
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case AV_OPT_TYPE_INT:
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case AV_OPT_TYPE_INT64:
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case AV_OPT_TYPE_FLOAT:
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case AV_OPT_TYPE_DOUBLE:
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case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
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case AV_OPT_TYPE_IMAGE_SIZE:
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if (!val || !strcmp(val, "none")) {
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*(int *)dst = *((int *)dst + 1) = 0;
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return 0;
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}
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ret = av_parse_video_size(dst, ((int *)dst) + 1, val);
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if (ret < 0)
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val);
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return ret;
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case AV_OPT_TYPE_VIDEO_RATE:
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if (!val) {
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ret = AVERROR(EINVAL);
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} else {
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ret = av_parse_video_rate(dst, val);
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}
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if (ret < 0)
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val);
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return ret;
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case AV_OPT_TYPE_PIXEL_FMT:
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if (!val || !strcmp(val, "none")) {
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ret = AV_PIX_FMT_NONE;
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} else {
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ret = av_get_pix_fmt(val);
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if (ret == AV_PIX_FMT_NONE) {
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char *tail;
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ret = strtol(val, &tail, 0);
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if (*tail || (unsigned)ret >= AV_PIX_FMT_NB) {
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as pixel format\n", val);
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return AVERROR(EINVAL);
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}
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}
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}
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*(enum AVPixelFormat *)dst = ret;
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return 0;
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case AV_OPT_TYPE_SAMPLE_FMT:
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if (!val || !strcmp(val, "none")) {
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ret = AV_SAMPLE_FMT_NONE;
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} else {
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ret = av_get_sample_fmt(val);
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if (ret == AV_SAMPLE_FMT_NONE) {
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char *tail;
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ret = strtol(val, &tail, 0);
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if (*tail || (unsigned)ret >= AV_SAMPLE_FMT_NB) {
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as sample format\n", val);
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return AVERROR(EINVAL);
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}
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}
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}
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*(enum AVSampleFormat *)dst = ret;
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return 0;
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case AV_OPT_TYPE_DURATION:
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if (!val) {
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*(int64_t *)dst = 0;
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return 0;
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} else {
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if ((ret = av_parse_time(dst, val, 1)) < 0)
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val);
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return ret;
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}
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}
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av_log(obj, AV_LOG_ERROR, "Invalid option type.\n");
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return AVERROR(EINVAL);
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}
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#define OPT_EVAL_NUMBER(name, opttype, vartype)\
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int av_opt_eval_ ## name(void *obj, const AVOption *o, const char *val, vartype *name ## _out)\
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{\
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if (!o || o->type != opttype)\
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return AVERROR(EINVAL);\
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return set_string_number(obj, obj, o, val, name ## _out);\
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}
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OPT_EVAL_NUMBER(flags, AV_OPT_TYPE_FLAGS, int)
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OPT_EVAL_NUMBER(int, AV_OPT_TYPE_INT, int)
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OPT_EVAL_NUMBER(int64, AV_OPT_TYPE_INT64, int64_t)
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OPT_EVAL_NUMBER(float, AV_OPT_TYPE_FLOAT, float)
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OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE, double)
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OPT_EVAL_NUMBER(q, AV_OPT_TYPE_RATIONAL, AVRational)
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static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
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int search_flags)
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{
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void *dst, *target_obj;
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const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
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if (!o || !target_obj)
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return AVERROR_OPTION_NOT_FOUND;
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dst = ((uint8_t*)target_obj) + o->offset;
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return write_number(obj, o, dst, num, den, intnum);
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}
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#if FF_API_OLD_AVOPTIONS
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const AVOption *av_set_double(void *obj, const char *name, double n)
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{
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const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
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if (set_number(obj, name, n, 1, 1, 0) < 0)
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return NULL;
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return o;
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}
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const AVOption *av_set_q(void *obj, const char *name, AVRational n)
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{
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const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
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if (set_number(obj, name, n.num, n.den, 1, 0) < 0)
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return NULL;
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return o;
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}
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const AVOption *av_set_int(void *obj, const char *name, int64_t n)
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{
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const AVOption *o = av_opt_find(obj, name, NULL, 0, 0);
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if (set_number(obj, name, 1, 1, n, 0) < 0)
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return NULL;
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return o;
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}
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#endif
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int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
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{
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return set_number(obj, name, 1, 1, val, search_flags);
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}
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int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
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{
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return set_number(obj, name, val, 1, 1, search_flags);
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}
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int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
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{
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return set_number(obj, name, val.num, val.den, 1, search_flags);
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}
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int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
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{
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void *target_obj;
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const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
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uint8_t *ptr;
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uint8_t **dst;
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int *lendst;
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if (!o || !target_obj)
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return AVERROR_OPTION_NOT_FOUND;
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if (o->type != AV_OPT_TYPE_BINARY)
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return AVERROR(EINVAL);
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ptr = len ? av_malloc(len) : NULL;
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if (len && !ptr)
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return AVERROR(ENOMEM);
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dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset);
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lendst = (int *)(dst + 1);
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av_free(*dst);
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*dst = ptr;
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*lendst = len;
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if (len)
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memcpy(ptr, val, len);
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return 0;
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}
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int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
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{
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void *target_obj;
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const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj);
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if (!o || !target_obj)
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return AVERROR_OPTION_NOT_FOUND;
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if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
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av_log(obj, AV_LOG_ERROR,
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"The value set by option '%s' is not an image size.\n", o->name);
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return AVERROR(EINVAL);
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}
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if (w<0 || h<0) {
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av_log(obj, AV_LOG_ERROR,
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"Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
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return AVERROR(EINVAL);
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}
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*(int *)(((uint8_t *)target_obj) + o->offset) = w;
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*(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h;
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return 0;
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}
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int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
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{
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void *target_obj;
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|
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_VIDEO_RATE) {
|
|
av_log(obj, AV_LOG_ERROR,
|
|
"The value set by option '%s' is not a video rate.\n", o->name);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (val.num <= 0 || val.den <= 0)
|
|
return AVERROR(EINVAL);
|
|
return set_number(obj, name, val.num, val.den, 1, search_flags);
|
|
}
|
|
|
|
static int set_format(void *obj, const char *name, int fmt, int search_flags,
|
|
enum AVOptionType type, const char *desc, int nb_fmts)
|
|
{
|
|
void *target_obj;
|
|
const AVOption *o = av_opt_find2(obj, name, NULL, 0,
|
|
search_flags, &target_obj);
|
|
int min, max;
|
|
const AVClass *class = *(AVClass **)obj;
|
|
|
|
if (!o || !target_obj)
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
if (o->type != type) {
|
|
av_log(obj, AV_LOG_ERROR,
|
|
"The value set by option '%s' is not a %s format", name, desc);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
#if LIBAVUTIL_VERSION_MAJOR < 53
|
|
if (class->version && class->version < AV_VERSION_INT(52, 11, 100)) {
|
|
min = -1;
|
|
max = nb_fmts-1;
|
|
} else
|
|
#endif
|
|
{
|
|
min = FFMIN(o->min, -1);
|
|
max = FFMAX(o->max, nb_fmts-1);
|
|
}
|
|
if (fmt < min || fmt > max) {
|
|
av_log(obj, AV_LOG_ERROR,
|
|
"Value %d for parameter '%s' out of %s format range [%d - %d]\n",
|
|
fmt, name, desc, min, max);
|
|
return AVERROR(ERANGE);
|
|
}
|
|
*(int *)(((uint8_t *)target_obj) + o->offset) = fmt;
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
|
|
{
|
|
return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
|
|
}
|
|
|
|
int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
|
|
{
|
|
return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
|
|
}
|
|
|
|
#if FF_API_OLD_AVOPTIONS
|
|
/**
|
|
*
|
|
* @param buf a buffer which is used for returning non string values as strings, can be NULL
|
|
* @param buf_len allocated length in bytes of buf
|
|
*/
|
|
const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
|
|
{
|
|
const AVOption *o = av_opt_find(obj, name, NULL, 0, AV_OPT_SEARCH_CHILDREN);
|
|
void *dst;
|
|
uint8_t *bin;
|
|
int len, i;
|
|
if (!o)
|
|
return NULL;
|
|
if (o->type != AV_OPT_TYPE_STRING && (!buf || !buf_len))
|
|
return NULL;
|
|
|
|
dst= ((uint8_t*)obj) + o->offset;
|
|
if (o_out) *o_out= o;
|
|
|
|
switch (o->type) {
|
|
case AV_OPT_TYPE_FLAGS: snprintf(buf, buf_len, "0x%08X",*(int *)dst);break;
|
|
case AV_OPT_TYPE_INT: snprintf(buf, buf_len, "%d" , *(int *)dst);break;
|
|
case AV_OPT_TYPE_INT64: snprintf(buf, buf_len, "%"PRId64, *(int64_t*)dst);break;
|
|
case AV_OPT_TYPE_FLOAT: snprintf(buf, buf_len, "%f" , *(float *)dst);break;
|
|
case AV_OPT_TYPE_DOUBLE: snprintf(buf, buf_len, "%f" , *(double *)dst);break;
|
|
case AV_OPT_TYPE_RATIONAL: snprintf(buf, buf_len, "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
|
|
case AV_OPT_TYPE_CONST: snprintf(buf, buf_len, "%f" , o->default_val.dbl);break;
|
|
case AV_OPT_TYPE_STRING: return *(void**)dst;
|
|
case AV_OPT_TYPE_BINARY:
|
|
len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
|
|
if (len >= (buf_len + 1)/2) return NULL;
|
|
bin = *(uint8_t**)dst;
|
|
for (i = 0; i < len; i++) snprintf(buf + i*2, 3, "%02X", bin[i]);
|
|
break;
|
|
default: return NULL;
|
|
}
|
|
return buf;
|
|
}
|
|
#endif
|
|
|
|
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;
|
|
int64_t i64;
|
|
|
|
if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
|
|
return AVERROR_OPTION_NOT_FOUND;
|
|
|
|
dst = (uint8_t*)target_obj + o->offset;
|
|
|
|
buf[0] = 0;
|
|
switch (o->type) {
|
|
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;
|
|
case AV_OPT_TYPE_VIDEO_RATE:
|
|
case AV_OPT_TYPE_RATIONAL: ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational*)dst)->num, ((AVRational*)dst)->den);break;
|
|
case AV_OPT_TYPE_CONST: ret = snprintf(buf, sizeof(buf), "%f" , o->default_val.dbl);break;
|
|
case AV_OPT_TYPE_STRING:
|
|
if (*(uint8_t**)dst)
|
|
*out_val = av_strdup(*(uint8_t**)dst);
|
|
else
|
|
*out_val = av_strdup("");
|
|
return 0;
|
|
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;
|
|
case AV_OPT_TYPE_IMAGE_SIZE:
|
|
ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
|
|
break;
|
|
case AV_OPT_TYPE_PIXEL_FMT:
|
|
ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
|
|
break;
|
|
case AV_OPT_TYPE_SAMPLE_FMT:
|
|
ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
|
|
break;
|
|
case AV_OPT_TYPE_DURATION:
|
|
i64 = *(int64_t *)dst;
|
|
ret = snprintf(buf, sizeof(buf), "%"PRIi64"d:%02d:%02d.%06d",
|
|
i64 / 3600000000, (int)((i64 / 60000000) % 60),
|
|
(int)((i64 / 1000000) % 60), (int)(i64 % 1000000));
|
|
break;
|
|
default:
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (ret >= sizeof(buf))
|
|
return AVERROR(EINVAL);
|
|
*out_val = av_strdup(buf);
|
|
return 0;
|
|
}
|
|
|
|
static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum,
|
|
int search_flags)
|
|
{
|
|
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*)target_obj) + o->offset;
|
|
|
|
if (o_out) *o_out= o;
|
|
|
|
return read_number(o, dst, num, den, intnum);
|
|
|
|
error:
|
|
*den=*intnum=0;
|
|
return -1;
|
|
}
|
|
|
|
#if FF_API_OLD_AVOPTIONS
|
|
double av_get_double(void *obj, const char *name, const AVOption **o_out)
|
|
{
|
|
int64_t intnum=1;
|
|
double num=1;
|
|
int den=1;
|
|
|
|
if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
|
|
return NAN;
|
|
return num*intnum/den;
|
|
}
|
|
|
|
AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
|
|
{
|
|
int64_t intnum=1;
|
|
double num=1;
|
|
int den=1;
|
|
|
|
if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
|
|
return (AVRational){0, 0};
|
|
if (num == 1.0 && (int)intnum == intnum)
|
|
return (AVRational){intnum, den};
|
|
else
|
|
return av_d2q(num*intnum/den, 1<<24);
|
|
}
|
|
|
|
int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
|
|
{
|
|
int64_t intnum=1;
|
|
double num=1;
|
|
int den=1;
|
|
|
|
if (get_number(obj, name, o_out, &num, &den, &intnum, 0) < 0)
|
|
return -1;
|
|
return num*intnum/den;
|
|
}
|
|
#endif
|
|
|
|
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, NULL, &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 ret, den = 1;
|
|
|
|
if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
|
|
return ret;
|
|
*out_val = num*intnum/den;
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
|
|
{
|
|
int64_t intnum = 1;
|
|
double num = 1;
|
|
int ret, den = 1;
|
|
|
|
if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
|
|
return ret;
|
|
|
|
if (num == 1.0 && (int)intnum == intnum)
|
|
*out_val = (AVRational){intnum, den};
|
|
else
|
|
*out_val = av_d2q(num*intnum/den, 1<<24);
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
|
|
{
|
|
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->type != AV_OPT_TYPE_IMAGE_SIZE) {
|
|
av_log(obj, AV_LOG_ERROR,
|
|
"The value for option '%s' is not an image size.\n", name);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
dst = ((uint8_t*)target_obj) + o->offset;
|
|
if (w_out) *w_out = *(int *)dst;
|
|
if (h_out) *h_out = *((int *)dst+1);
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
|
|
{
|
|
int64_t intnum = 1;
|
|
double num = 1;
|
|
int ret, den = 1;
|
|
|
|
if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
|
|
return ret;
|
|
|
|
if (num == 1.0 && (int)intnum == intnum)
|
|
*out_val = (AVRational){intnum, den};
|
|
else
|
|
*out_val = av_d2q(num*intnum/den, 1<<24);
|
|
return 0;
|
|
}
|
|
|
|
static int get_format(void *obj, const char *name, int search_flags, int *out_fmt,
|
|
enum AVOptionType type, const char *desc)
|
|
{
|
|
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->type != type) {
|
|
av_log(obj, AV_LOG_ERROR,
|
|
"The value for option '%s' is not a %s format.\n", desc, name);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
dst = ((uint8_t*)target_obj) + o->offset;
|
|
*out_fmt = *(int *)dst;
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
|
|
{
|
|
return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
|
|
}
|
|
|
|
int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
|
|
{
|
|
return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
|
|
}
|
|
|
|
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 log_value(void *av_log_obj, int level, double d)
|
|
{
|
|
if (d == INT_MAX) {
|
|
av_log(av_log_obj, level, "INT_MAX");
|
|
} else if (d == INT_MIN) {
|
|
av_log(av_log_obj, level, "INT_MIN");
|
|
} else if (d == (double)INT64_MAX) {
|
|
av_log(av_log_obj, level, "I64_MAX");
|
|
} else if (d == INT64_MIN) {
|
|
av_log(av_log_obj, level, "I64_MIN");
|
|
} else if (d == FLT_MAX) {
|
|
av_log(av_log_obj, level, "FLT_MAX");
|
|
} else if (d == FLT_MIN) {
|
|
av_log(av_log_obj, level, "FLT_MIN");
|
|
} else {
|
|
av_log(av_log_obj, level, "%g", d);
|
|
}
|
|
}
|
|
|
|
static void opt_list(void *obj, void *av_log_obj, const char *unit,
|
|
int req_flags, int rej_flags)
|
|
{
|
|
const AVOption *opt=NULL;
|
|
AVOptionRanges *r;
|
|
int i;
|
|
|
|
while ((opt = av_opt_next(obj, opt))) {
|
|
if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
|
|
continue;
|
|
|
|
/* Don't print CONST's on level one.
|
|
* Don't print anything but CONST's on level two.
|
|
* Only print items from the requested unit.
|
|
*/
|
|
if (!unit && opt->type==AV_OPT_TYPE_CONST)
|
|
continue;
|
|
else if (unit && opt->type!=AV_OPT_TYPE_CONST)
|
|
continue;
|
|
else if (unit && opt->type==AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
|
|
continue;
|
|
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, " %s%-17s ",
|
|
(opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-",
|
|
opt->name);
|
|
|
|
switch (opt->type) {
|
|
case AV_OPT_TYPE_FLAGS:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>");
|
|
break;
|
|
case AV_OPT_TYPE_INT:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>");
|
|
break;
|
|
case AV_OPT_TYPE_INT64:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>");
|
|
break;
|
|
case AV_OPT_TYPE_DOUBLE:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>");
|
|
break;
|
|
case AV_OPT_TYPE_FLOAT:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>");
|
|
break;
|
|
case AV_OPT_TYPE_STRING:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>");
|
|
break;
|
|
case AV_OPT_TYPE_RATIONAL:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>");
|
|
break;
|
|
case AV_OPT_TYPE_BINARY:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>");
|
|
break;
|
|
case AV_OPT_TYPE_IMAGE_SIZE:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>");
|
|
break;
|
|
case AV_OPT_TYPE_VIDEO_RATE:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>");
|
|
break;
|
|
case AV_OPT_TYPE_PIXEL_FMT:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>");
|
|
break;
|
|
case AV_OPT_TYPE_SAMPLE_FMT:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>");
|
|
break;
|
|
case AV_OPT_TYPE_DURATION:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>");
|
|
break;
|
|
case AV_OPT_TYPE_CONST:
|
|
default:
|
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
|
|
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_FILTERING_PARAM)? 'F' : '.');
|
|
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
|
|
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
|
|
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
|
|
|
|
if (opt->help)
|
|
av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
|
|
|
|
if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) {
|
|
switch (opt->type) {
|
|
case AV_OPT_TYPE_INT:
|
|
case AV_OPT_TYPE_INT64:
|
|
case AV_OPT_TYPE_DOUBLE:
|
|
case AV_OPT_TYPE_FLOAT:
|
|
case AV_OPT_TYPE_RATIONAL:
|
|
for (i = 0; i < r->nb_ranges; i++) {
|
|
av_log(av_log_obj, AV_LOG_INFO, " (from ");
|
|
log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
|
|
av_log(av_log_obj, AV_LOG_INFO, " to ");
|
|
log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
|
|
av_log(av_log_obj, AV_LOG_INFO, ")");
|
|
}
|
|
break;
|
|
}
|
|
av_opt_freep_ranges(&r);
|
|
}
|
|
|
|
av_log(av_log_obj, AV_LOG_INFO, "\n");
|
|
if (opt->unit && opt->type != AV_OPT_TYPE_CONST) {
|
|
opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
|
|
{
|
|
if (!obj)
|
|
return -1;
|
|
|
|
av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
|
|
|
|
opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void av_opt_set_defaults(void *s)
|
|
{
|
|
#if FF_API_OLD_AVOPTIONS
|
|
av_opt_set_defaults2(s, 0, 0);
|
|
}
|
|
|
|
void av_opt_set_defaults2(void *s, int mask, int flags)
|
|
{
|
|
#endif
|
|
const AVClass *class = *(AVClass **)s;
|
|
const AVOption *opt = NULL;
|
|
while ((opt = av_opt_next(s, opt)) != NULL) {
|
|
#if FF_API_OLD_AVOPTIONS
|
|
if ((opt->flags & mask) != flags)
|
|
continue;
|
|
#endif
|
|
switch (opt->type) {
|
|
case AV_OPT_TYPE_CONST:
|
|
/* Nothing to be done here */
|
|
break;
|
|
case AV_OPT_TYPE_FLAGS:
|
|
case AV_OPT_TYPE_INT:
|
|
case AV_OPT_TYPE_INT64:
|
|
case AV_OPT_TYPE_DURATION:
|
|
av_opt_set_int(s, opt->name, opt->default_val.i64, 0);
|
|
break;
|
|
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:
|
|
case AV_OPT_TYPE_IMAGE_SIZE:
|
|
case AV_OPT_TYPE_VIDEO_RATE:
|
|
av_opt_set(s, opt->name, opt->default_val.str, 0);
|
|
break;
|
|
case AV_OPT_TYPE_PIXEL_FMT:
|
|
#if LIBAVUTIL_VERSION_MAJOR < 53
|
|
if (class->version && class->version < AV_VERSION_INT(52, 10, 100))
|
|
av_opt_set(s, opt->name, opt->default_val.str, 0);
|
|
else
|
|
#endif
|
|
av_opt_set_pixel_fmt(s, opt->name, opt->default_val.i64, 0);
|
|
break;
|
|
case AV_OPT_TYPE_SAMPLE_FMT:
|
|
#if LIBAVUTIL_VERSION_MAJOR < 53
|
|
if (class->version && class->version < AV_VERSION_INT(52, 10, 100))
|
|
av_opt_set(s, opt->name, opt->default_val.str, 0);
|
|
else
|
|
#endif
|
|
av_opt_set_sample_fmt(s, opt->name, opt->default_val.i64, 0);
|
|
break;
|
|
case AV_OPT_TYPE_BINARY:
|
|
/* Cannot set default for binary */
|
|
break;
|
|
default:
|
|
av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", opt->type, opt->name);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Store the value in the field in ctx that is named like key.
|
|
* ctx must be an AVClass context, storing is done using AVOptions.
|
|
*
|
|
* @param buf the string to parse, buf will be updated to point at the
|
|
* separator just after the parsed key/value pair
|
|
* @param key_val_sep a 0-terminated list of characters used to
|
|
* separate key from value
|
|
* @param pairs_sep a 0-terminated list of characters used to separate
|
|
* two pairs from each other
|
|
* @return 0 if the key/value pair has been successfully parsed and
|
|
* 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_opt_set() if the key/value pair
|
|
* cannot be set
|
|
*/
|
|
static int parse_key_value_pair(void *ctx, const char **buf,
|
|
const char *key_val_sep, const char *pairs_sep)
|
|
{
|
|
char *key = av_get_token(buf, key_val_sep);
|
|
char *val;
|
|
int ret;
|
|
|
|
if (*key && strspn(*buf, key_val_sep)) {
|
|
(*buf)++;
|
|
val = av_get_token(buf, pairs_sep);
|
|
} else {
|
|
av_log(ctx, AV_LOG_ERROR, "Missing key or no key/value separator found after key '%s'\n", key);
|
|
av_free(key);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val);
|
|
|
|
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);
|
|
av_free(val);
|
|
return ret;
|
|
}
|
|
|
|
int av_set_options_string(void *ctx, const char *opts,
|
|
const char *key_val_sep, const char *pairs_sep)
|
|
{
|
|
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;
|
|
count++;
|
|
|
|
if (*opts)
|
|
opts++;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
#define WHITESPACES " \n\t"
|
|
|
|
static int is_key_char(char c)
|
|
{
|
|
return (unsigned)((c | 32) - 'a') < 26 ||
|
|
(unsigned)(c - '0') < 10 ||
|
|
c == '-' || c == '_' || c == '/' || c == '.';
|
|
}
|
|
|
|
/**
|
|
* Read a key from a string.
|
|
*
|
|
* The key consists of is_key_char characters and must be terminated by a
|
|
* character from the delim string; spaces are ignored.
|
|
*
|
|
* @return 0 for success (even with ellipsis), <0 for failure
|
|
*/
|
|
static int get_key(const char **ropts, const char *delim, char **rkey)
|
|
{
|
|
const char *opts = *ropts;
|
|
const char *key_start, *key_end;
|
|
|
|
key_start = opts += strspn(opts, WHITESPACES);
|
|
while (is_key_char(*opts))
|
|
opts++;
|
|
key_end = opts;
|
|
opts += strspn(opts, WHITESPACES);
|
|
if (!*opts || !strchr(delim, *opts))
|
|
return AVERROR(EINVAL);
|
|
opts++;
|
|
if (!(*rkey = av_malloc(key_end - key_start + 1)))
|
|
return AVERROR(ENOMEM);
|
|
memcpy(*rkey, key_start, key_end - key_start);
|
|
(*rkey)[key_end - key_start] = 0;
|
|
*ropts = opts;
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_get_key_value(const char **ropts,
|
|
const char *key_val_sep, const char *pairs_sep,
|
|
unsigned flags,
|
|
char **rkey, char **rval)
|
|
{
|
|
int ret;
|
|
char *key = NULL, *val;
|
|
const char *opts = *ropts;
|
|
|
|
if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
|
|
!(flags & AV_OPT_FLAG_IMPLICIT_KEY))
|
|
return AVERROR(EINVAL);
|
|
if (!(val = av_get_token(&opts, pairs_sep))) {
|
|
av_free(key);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
*ropts = opts;
|
|
*rkey = key;
|
|
*rval = val;
|
|
return 0;
|
|
}
|
|
|
|
int av_opt_set_from_string(void *ctx, const char *opts,
|
|
const char *const *shorthand,
|
|
const char *key_val_sep, const char *pairs_sep)
|
|
{
|
|
int ret, count = 0;
|
|
const char *dummy_shorthand = NULL;
|
|
char *av_uninit(parsed_key), *av_uninit(value);
|
|
const char *key;
|
|
|
|
if (!opts)
|
|
return 0;
|
|
if (!shorthand)
|
|
shorthand = &dummy_shorthand;
|
|
|
|
while (*opts) {
|
|
ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
|
|
*shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
|
|
&parsed_key, &value);
|
|
if (ret < 0) {
|
|
if (ret == AVERROR(EINVAL))
|
|
av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts);
|
|
else
|
|
av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts,
|
|
av_err2str(ret));
|
|
return ret;
|
|
}
|
|
if (*opts)
|
|
opts++;
|
|
if (parsed_key) {
|
|
key = parsed_key;
|
|
while (*shorthand) /* discard all remaining shorthand */
|
|
shorthand++;
|
|
} else {
|
|
key = *(shorthand++);
|
|
}
|
|
|
|
av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
|
|
if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
|
|
if (ret == AVERROR_OPTION_NOT_FOUND)
|
|
av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
|
|
av_free(value);
|
|
av_free(parsed_key);
|
|
return ret;
|
|
}
|
|
|
|
av_free(value);
|
|
av_free(parsed_key);
|
|
count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
void av_opt_free(void *obj)
|
|
{
|
|
const AVOption *o = NULL;
|
|
while ((o = av_opt_next(obj, o)))
|
|
if (o->type == AV_OPT_TYPE_STRING || o->type == AV_OPT_TYPE_BINARY)
|
|
av_freep((uint8_t *)obj + o->offset);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
|
|
int opt_flags, int search_flags)
|
|
{
|
|
return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL);
|
|
}
|
|
|
|
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;
|
|
const AVOption *o = NULL;
|
|
|
|
if(!obj)
|
|
return NULL;
|
|
|
|
c= *(AVClass**)obj;
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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->type == AV_OPT_TYPE_CONST && 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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
void *av_opt_ptr(const AVClass *class, void *obj, const char *name)
|
|
{
|
|
const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL);
|
|
if(!opt)
|
|
return NULL;
|
|
return (uint8_t*)obj + opt->offset;
|
|
}
|
|
|
|
int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
|
|
{
|
|
const AVClass *c = *(AVClass**)obj;
|
|
int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL;
|
|
|
|
if (c->version > (52 << 16 | 11 << 8))
|
|
callback = c->query_ranges;
|
|
|
|
if (!callback)
|
|
callback = av_opt_query_ranges_default;
|
|
|
|
return callback(ranges_arg, obj, key, flags);
|
|
}
|
|
|
|
int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
|
|
{
|
|
AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
|
|
AVOptionRange **range_array = av_mallocz(sizeof(void*));
|
|
AVOptionRange *range = av_mallocz(sizeof(*range));
|
|
const AVOption *field = av_opt_find(obj, key, NULL, 0, flags);
|
|
int ret;
|
|
|
|
*ranges_arg = NULL;
|
|
|
|
if (!ranges || !range || !range_array || !field) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
ranges->range = range_array;
|
|
ranges->range[0] = range;
|
|
ranges->nb_ranges = 1;
|
|
range->is_range = 1;
|
|
range->value_min = field->min;
|
|
range->value_max = field->max;
|
|
|
|
switch (field->type) {
|
|
case AV_OPT_TYPE_INT:
|
|
case AV_OPT_TYPE_INT64:
|
|
case AV_OPT_TYPE_PIXEL_FMT:
|
|
case AV_OPT_TYPE_SAMPLE_FMT:
|
|
case AV_OPT_TYPE_FLOAT:
|
|
case AV_OPT_TYPE_DOUBLE:
|
|
case AV_OPT_TYPE_DURATION:
|
|
break;
|
|
case AV_OPT_TYPE_STRING:
|
|
range->component_min = 0;
|
|
range->component_max = 0x10FFFF; // max unicode value
|
|
range->value_min = -1;
|
|
range->value_max = INT_MAX;
|
|
break;
|
|
case AV_OPT_TYPE_RATIONAL:
|
|
range->component_min = INT_MIN;
|
|
range->component_max = INT_MAX;
|
|
break;
|
|
case AV_OPT_TYPE_IMAGE_SIZE:
|
|
range->component_min = 0;
|
|
range->component_max = INT_MAX/128/8;
|
|
range->value_min = 0;
|
|
range->value_max = INT_MAX/8;
|
|
break;
|
|
case AV_OPT_TYPE_VIDEO_RATE:
|
|
range->component_min = 1;
|
|
range->component_max = INT_MAX;
|
|
range->value_min = 1;
|
|
range->value_max = INT_MAX;
|
|
break;
|
|
default:
|
|
ret = AVERROR(ENOSYS);
|
|
goto fail;
|
|
}
|
|
|
|
*ranges_arg = ranges;
|
|
return 0;
|
|
fail:
|
|
av_free(ranges);
|
|
av_free(range);
|
|
av_free(range_array);
|
|
return ret;
|
|
}
|
|
|
|
void av_opt_freep_ranges(AVOptionRanges **rangesp)
|
|
{
|
|
int i;
|
|
AVOptionRanges *ranges = *rangesp;
|
|
|
|
for (i = 0; i < ranges->nb_ranges; i++) {
|
|
AVOptionRange *range = ranges->range[i];
|
|
av_freep(&range->str);
|
|
av_freep(&ranges->range[i]);
|
|
}
|
|
av_freep(&ranges->range);
|
|
av_freep(rangesp);
|
|
}
|
|
|
|
#ifdef TEST
|
|
|
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typedef struct TestContext
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{
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const AVClass *class;
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int num;
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int toggle;
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char *string;
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int flags;
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AVRational rational;
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AVRational video_rate;
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int w, h;
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enum AVPixelFormat pix_fmt;
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enum AVSampleFormat sample_fmt;
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int64_t duration;
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} TestContext;
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#define OFFSET(x) offsetof(TestContext, x)
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#define TEST_FLAG_COOL 01
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#define TEST_FLAG_LAME 02
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#define TEST_FLAG_MU 04
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static const AVOption test_options[]= {
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{"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100 },
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{"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1 },
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{"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10 },
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{"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, {.str = "default"}, CHAR_MIN, CHAR_MAX },
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{"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, 0, "flags" },
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{"cool", "set cool flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_COOL}, INT_MIN, INT_MAX, 0, "flags" },
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{"lame", "set lame flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_LAME}, INT_MIN, INT_MAX, 0, "flags" },
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{"mu", "set mu flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_MU}, INT_MIN, INT_MAX, 0, "flags" },
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{"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{0}, 0, 0 },
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{"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_NONE}, -1, AV_PIX_FMT_NB-1},
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{"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_NONE}, -1, AV_SAMPLE_FMT_NB-1},
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{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 },
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{"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX},
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{NULL},
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};
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static const char *test_get_name(void *ctx)
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{
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return "test";
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}
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static const AVClass test_class = {
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"TestContext",
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test_get_name,
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test_options
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};
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int main(void)
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{
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int i;
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printf("\nTesting av_set_options_string()\n");
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{
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TestContext test_ctx = { 0 };
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const char *options[] = {
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"",
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":",
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"=",
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"foo=:",
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":=foo",
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"=foo",
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"foo=",
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"foo",
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"foo=val",
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"foo==val",
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"toggle=:",
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"string=:",
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"toggle=1 : foo",
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"toggle=100",
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"toggle==1",
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"flags=+mu-lame : num=42: toggle=0",
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"num=42 : string=blahblah",
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"rational=0 : rational=1/2 : rational=1/-1",
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"rational=-1/0",
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"size=1024x768",
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"size=pal",
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"size=bogus",
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"pix_fmt=yuv420p",
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"pix_fmt=2",
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"pix_fmt=bogus",
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"sample_fmt=s16",
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"sample_fmt=2",
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"sample_fmt=bogus",
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"video_rate=pal",
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"video_rate=25",
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"video_rate=30000/1001",
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"video_rate=30/1.001",
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"video_rate=bogus",
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"duration=bogus",
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"duration=123.45",
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"duration=1\\:23\\:45.67",
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};
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test_ctx.class = &test_class;
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av_opt_set_defaults(&test_ctx);
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av_log_set_level(AV_LOG_DEBUG);
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for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
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av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
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if (av_set_options_string(&test_ctx, options[i], "=", ":") < 0)
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av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
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printf("\n");
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}
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av_freep(&test_ctx.string);
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}
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printf("\nTesting av_opt_set_from_string()\n");
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{
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TestContext test_ctx = { 0 };
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const char *options[] = {
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"",
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"5",
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"5:hello",
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"5:hello:size=pal",
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"5:size=pal:hello",
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":",
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"=",
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" 5 : hello : size = pal ",
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"a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42"
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};
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const char *shorthand[] = { "num", "string", NULL };
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test_ctx.class = &test_class;
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av_opt_set_defaults(&test_ctx);
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test_ctx.string = av_strdup("default");
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av_log_set_level(AV_LOG_DEBUG);
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for (i=0; i < FF_ARRAY_ELEMS(options); i++) {
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av_log(&test_ctx, AV_LOG_DEBUG, "Setting options string '%s'\n", options[i]);
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if (av_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0)
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av_log(&test_ctx, AV_LOG_ERROR, "Error setting options string: '%s'\n", options[i]);
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printf("\n");
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}
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av_freep(&test_ctx.string);
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}
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return 0;
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}
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#endif
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