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2156 lines
71 KiB
2156 lines
71 KiB
/* |
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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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/** |
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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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|
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#include "avutil.h" |
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#include "avstring.h" |
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#include "channel_layout.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 "bprint.h" |
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|
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#include <float.h> |
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|
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#if FF_API_OLD_AVOPTIONS |
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const AVOption *av_next_option(FF_CONST_AVUTIL55 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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|
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const AVOption *av_opt_next(FF_CONST_AVUTIL55 void *obj, const AVOption *last) |
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{ |
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const AVClass *class; |
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if (!obj) |
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return NULL; |
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class = *(const AVClass**)obj; |
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if (!last && class && 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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|
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static int read_number(const AVOption *o, const 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_CHANNEL_LAYOUT: |
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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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|
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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->type != AV_OPT_TYPE_FLAGS && |
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(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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if (o->type == AV_OPT_TYPE_FLAGS) { |
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double d = num*intnum/den; |
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if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) { |
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av_log(obj, AV_LOG_ERROR, |
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"Value %f for parameter '%s' is not a valid set of 32bit integer flags\n", |
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num*intnum/den, o->name); |
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return AVERROR(ERANGE); |
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} |
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} |
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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_CHANNEL_LAYOUT: |
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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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|
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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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|
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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; |
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|
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av_freep(dst); |
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*lendst = 0; |
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|
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if (!val || !(len = strlen(val))) |
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return 0; |
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|
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if (len & 1) |
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return AVERROR(EINVAL); |
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len /= 2; |
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|
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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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|
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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 *dst ? 0 : AVERROR(ENOMEM); |
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} |
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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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|
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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; |
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int num, den; |
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char c; |
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|
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if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) { |
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if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0) |
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return ret; |
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ret = 0; |
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} |
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|
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for (;;) { |
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int i = 0; |
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char buf[256]; |
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int cmd = 0; |
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double d; |
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int64_t intnum = 1; |
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|
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if (o->type == AV_OPT_TYPE_FLAGS) { |
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if (*val == '+' || *val == '-') |
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cmd = *(val++); |
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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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|
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{ |
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const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0); |
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int res; |
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int ci = 0; |
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double const_values[64]; |
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const char * const_names[64]; |
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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 { |
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if (o->unit) { |
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for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) { |
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if (o_named->type == AV_OPT_TYPE_CONST && |
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o_named->unit && |
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!strcmp(o_named->unit, o->unit)) { |
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if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) { |
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av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit); |
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return AVERROR_PATCHWELCOME; |
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} |
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const_names [ci ] = o_named->name; |
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const_values[ci++] = DEFAULT_NUMVAL(o_named); |
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} |
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} |
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} |
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const_names [ci ] = "default"; |
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const_values[ci++] = DEFAULT_NUMVAL(o); |
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const_names [ci ] = "max"; |
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const_values[ci++] = o->max; |
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const_names [ci ] = "min"; |
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const_values[ci++] = o->min; |
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const_names [ci ] = "none"; |
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const_values[ci++] = 0; |
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const_names [ci ] = "all"; |
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const_values[ci++] = ~0; |
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const_names [ci] = NULL; |
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const_values[ci] = 0; |
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|
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res = av_expr_parse_and_eval(&d, i ? buf : val, const_names, |
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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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} |
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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 (!i || !*val) |
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return 0; |
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} |
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|
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return 0; |
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} |
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|
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static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst) |
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{ |
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int ret; |
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|
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if (!val || !strcmp(val, "none")) { |
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dst[0] = |
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dst[1] = 0; |
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return 0; |
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} |
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ret = av_parse_video_size(dst, 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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} |
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|
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static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst) |
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{ |
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int ret; |
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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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} |
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|
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static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst) |
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{ |
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int ret; |
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|
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if (!val) { |
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return 0; |
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} else { |
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ret = av_parse_color(dst, val, -1, obj); |
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if (ret < 0) |
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val); |
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return ret; |
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} |
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return 0; |
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} |
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|
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static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst, |
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int fmt_nb, int ((*get_fmt)(const char *)), const char *desc) |
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{ |
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int fmt, min, max; |
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|
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if (!val || !strcmp(val, "none")) { |
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fmt = -1; |
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} else { |
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fmt = get_fmt(val); |
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if (fmt == -1) { |
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char *tail; |
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fmt = strtol(val, &tail, 0); |
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if (*tail || (unsigned)fmt >= fmt_nb) { |
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av_log(obj, AV_LOG_ERROR, |
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"Unable to parse option value \"%s\" as %s\n", val, desc); |
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return AVERROR(EINVAL); |
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} |
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} |
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} |
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|
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min = FFMAX(o->min, -1); |
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max = FFMIN(o->max, fmt_nb-1); |
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|
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// hack for compatibility with old ffmpeg |
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if(min == 0 && max == 0) { |
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min = -1; |
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max = fmt_nb-1; |
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} |
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|
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if (fmt < min || fmt > max) { |
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av_log(obj, AV_LOG_ERROR, |
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"Value %d for parameter '%s' out of %s format range [%d - %d]\n", |
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fmt, o->name, desc, min, max); |
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return AVERROR(ERANGE); |
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} |
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|
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*(int *)dst = fmt; |
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return 0; |
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} |
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|
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static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst) |
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{ |
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return set_string_fmt(obj, o, val, dst, |
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AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format"); |
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} |
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|
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static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst) |
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{ |
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return set_string_fmt(obj, o, val, dst, |
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AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format"); |
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} |
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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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|
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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 = 0; |
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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 && o->type != AV_OPT_TYPE_COLOR && |
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o->type != AV_OPT_TYPE_CHANNEL_LAYOUT)) |
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return AVERROR(EINVAL); |
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|
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if (o->flags & AV_OPT_FLAG_READONLY) |
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return AVERROR(EINVAL); |
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|
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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: return set_string_image_size(obj, o, val, dst); |
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case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst); |
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case AV_OPT_TYPE_PIXEL_FMT: return set_string_pixel_fmt(obj, o, val, dst); |
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case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst); |
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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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break; |
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case AV_OPT_TYPE_COLOR: return set_string_color(obj, o, val, dst); |
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case AV_OPT_TYPE_CHANNEL_LAYOUT: |
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if (!val || !strcmp(val, "none")) { |
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*(int64_t *)dst = 0; |
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} else { |
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#if FF_API_GET_CHANNEL_LAYOUT_COMPAT |
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int64_t cl = ff_get_channel_layout(val, 0); |
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#else |
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int64_t cl = av_get_channel_layout(val); |
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#endif |
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if (!cl) { |
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av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val); |
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ret = AVERROR(EINVAL); |
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} |
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*(int64_t *)dst = cl; |
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return ret; |
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} |
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break; |
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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 || o->flags & AV_OPT_FLAG_READONLY)\ |
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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, |
|
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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if (o->flags & AV_OPT_FLAG_READONLY) |
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return AVERROR(EINVAL); |
|
|
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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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} |
|
|
|
#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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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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const AVOption *av_set_q(void *obj, const char *name, AVRational n) |
|
{ |
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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; |
|
} |
|
#endif |
|
|
|
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags) |
|
{ |
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return set_number(obj, name, 1, 1, val, search_flags); |
|
} |
|
|
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int av_opt_set_double(void *obj, const char *name, double val, int search_flags) |
|
{ |
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return set_number(obj, name, val, 1, 1, search_flags); |
|
} |
|
|
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int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags) |
|
{ |
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return set_number(obj, name, val.num, val.den, 1, search_flags); |
|
} |
|
|
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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; |
|
|
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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 = len ? av_malloc(len) : NULL; |
|
if (len && !ptr) |
|
return AVERROR(ENOMEM); |
|
|
|
dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset); |
|
lendst = (int *)(dst + 1); |
|
|
|
av_free(*dst); |
|
*dst = ptr; |
|
*lendst = len; |
|
if (len) |
|
memcpy(ptr, val, len); |
|
|
|
return 0; |
|
} |
|
|
|
int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags) |
|
{ |
|
void *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 set by option '%s' is not an image size.\n", o->name); |
|
return AVERROR(EINVAL); |
|
} |
|
if (w<0 || h<0) { |
|
av_log(obj, AV_LOG_ERROR, |
|
"Invalid negative size value %dx%d for size '%s'\n", w, h, o->name); |
|
return AVERROR(EINVAL); |
|
} |
|
*(int *)(((uint8_t *)target_obj) + o->offset) = w; |
|
*(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h; |
|
return 0; |
|
} |
|
|
|
int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags) |
|
{ |
|
void *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_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; |
|
|
|
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); |
|
} |
|
|
|
min = FFMAX(o->min, -1); |
|
max = FFMIN(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); |
|
} |
|
|
|
int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags) |
|
{ |
|
void *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_CHANNEL_LAYOUT) { |
|
av_log(obj, AV_LOG_ERROR, |
|
"The value set by option '%s' is not a channel layout.\n", o->name); |
|
return AVERROR(EINVAL); |
|
} |
|
*(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl; |
|
return 0; |
|
} |
|
|
|
#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_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; |
|
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 *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); |
|
if (!len) { |
|
*out_val[0] = '\0'; |
|
return 0; |
|
} |
|
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":%02d:%02d.%06d", |
|
i64 / 3600000000, (int)((i64 / 60000000) % 60), |
|
(int)((i64 / 1000000) % 60), (int)(i64 % 1000000)); |
|
break; |
|
case AV_OPT_TYPE_COLOR: |
|
ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x", |
|
(int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1], |
|
(int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]); |
|
break; |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
i64 = *(int64_t *)dst; |
|
ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64); |
|
break; |
|
default: |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (ret >= sizeof(buf)) |
|
return AVERROR(EINVAL); |
|
*out_val = av_strdup(buf); |
|
return *out_val ? 0 : AVERROR(ENOMEM); |
|
} |
|
|
|
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_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl) |
|
{ |
|
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_CHANNEL_LAYOUT) { |
|
av_log(obj, AV_LOG_ERROR, |
|
"The value for option '%s' is not a channel layout.\n", name); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
dst = ((uint8_t*)target_obj) + o->offset; |
|
*cl = *(int64_t *)dst; |
|
return 0; |
|
} |
|
|
|
int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val) |
|
{ |
|
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); |
|
|
|
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 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 == UINT32_MAX) { |
|
av_log(av_log_obj, level, "UINT32_MAX"); |
|
} 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 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 if (d == DBL_MAX) { |
|
av_log(av_log_obj, level, "DBL_MAX"); |
|
} else if (d == DBL_MIN) { |
|
av_log(av_log_obj, level, "DBL_MIN"); |
|
} else if (d == -DBL_MAX) { |
|
av_log(av_log_obj, level, "-DBL_MAX"); |
|
} else if (d == -DBL_MIN) { |
|
av_log(av_log_obj, level, "-DBL_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_COLOR: |
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>"); |
|
break; |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>"); |
|
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' : '.'); |
|
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); |
|
|
|
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); |
|
} |
|
|
|
if (opt->type != AV_OPT_TYPE_CONST && |
|
opt->type != AV_OPT_TYPE_BINARY && |
|
!((opt->type == AV_OPT_TYPE_COLOR || |
|
opt->type == AV_OPT_TYPE_IMAGE_SIZE || |
|
opt->type == AV_OPT_TYPE_STRING || |
|
opt->type == AV_OPT_TYPE_VIDEO_RATE) && |
|
!opt->default_val.str)) { |
|
av_log(av_log_obj, AV_LOG_INFO, " (default "); |
|
switch (opt->type) { |
|
case AV_OPT_TYPE_FLAGS: |
|
av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64); |
|
break; |
|
case AV_OPT_TYPE_DURATION: |
|
case AV_OPT_TYPE_INT: |
|
case AV_OPT_TYPE_INT64: |
|
log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64); |
|
break; |
|
case AV_OPT_TYPE_DOUBLE: |
|
case AV_OPT_TYPE_FLOAT: |
|
log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl); |
|
break; |
|
case AV_OPT_TYPE_RATIONAL: { |
|
AVRational q = av_d2q(opt->default_val.dbl, INT_MAX); |
|
av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); } |
|
break; |
|
case AV_OPT_TYPE_PIXEL_FMT: |
|
av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none")); |
|
break; |
|
case AV_OPT_TYPE_SAMPLE_FMT: |
|
av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none")); |
|
break; |
|
case AV_OPT_TYPE_COLOR: |
|
case AV_OPT_TYPE_IMAGE_SIZE: |
|
case AV_OPT_TYPE_STRING: |
|
case AV_OPT_TYPE_VIDEO_RATE: |
|
av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str); |
|
break; |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64); |
|
break; |
|
} |
|
av_log(av_log_obj, AV_LOG_INFO, ")"); |
|
} |
|
|
|
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 AVOption *opt = NULL; |
|
while ((opt = av_opt_next(s, opt))) { |
|
void *dst = ((uint8_t*)s) + opt->offset; |
|
#if FF_API_OLD_AVOPTIONS |
|
if ((opt->flags & mask) != flags) |
|
continue; |
|
#endif |
|
|
|
if (opt->flags & AV_OPT_FLAG_READONLY) |
|
continue; |
|
|
|
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: |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
write_number(s, opt, dst, 1, 1, opt->default_val.i64); |
|
break; |
|
case AV_OPT_TYPE_DOUBLE: |
|
case AV_OPT_TYPE_FLOAT: { |
|
double val; |
|
val = opt->default_val.dbl; |
|
write_number(s, opt, dst, val, 1, 1); |
|
} |
|
break; |
|
case AV_OPT_TYPE_RATIONAL: { |
|
AVRational val; |
|
val = av_d2q(opt->default_val.dbl, INT_MAX); |
|
write_number(s, opt, dst, 1, val.den, val.num); |
|
} |
|
break; |
|
case AV_OPT_TYPE_COLOR: |
|
set_string_color(s, opt, opt->default_val.str, dst); |
|
break; |
|
case AV_OPT_TYPE_STRING: |
|
set_string(s, opt, opt->default_val.str, dst); |
|
break; |
|
case AV_OPT_TYPE_IMAGE_SIZE: |
|
set_string_image_size(s, opt, opt->default_val.str, dst); |
|
break; |
|
case AV_OPT_TYPE_VIDEO_RATE: |
|
set_string_video_rate(s, opt, opt->default_val.str, dst); |
|
break; |
|
case AV_OPT_TYPE_PIXEL_FMT: |
|
write_number(s, opt, dst, 1, 1, opt->default_val.i64); |
|
break; |
|
case AV_OPT_TYPE_SAMPLE_FMT: |
|
write_number(s, opt, dst, 1, 1, opt->default_val.i64); |
|
break; |
|
case AV_OPT_TYPE_BINARY: |
|
set_string_binary(s, opt, opt->default_val.str, dst); |
|
break; |
|
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); |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* 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) |
|
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); |
|
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))) { |
|
switch (o->type) { |
|
case AV_OPT_TYPE_STRING: |
|
case AV_OPT_TYPE_BINARY: |
|
av_freep((uint8_t *)obj + o->offset); |
|
break; |
|
|
|
case AV_OPT_TYPE_DICT: |
|
av_dict_free((AVDictionary **)(((uint8_t *)obj) + o->offset)); |
|
break; |
|
|
|
default: |
|
break; |
|
} |
|
} |
|
} |
|
|
|
int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags) |
|
{ |
|
AVDictionaryEntry *t = NULL; |
|
AVDictionary *tmp = NULL; |
|
int ret = 0; |
|
|
|
if (!options) |
|
return 0; |
|
|
|
while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) { |
|
ret = av_opt_set(obj, t->key, t->value, search_flags); |
|
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; |
|
} |
|
|
|
int av_opt_set_dict(void *obj, AVDictionary **options) |
|
{ |
|
return av_opt_set_dict2(obj, options, 0); |
|
} |
|
|
|
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 (!c) |
|
return NULL; |
|
|
|
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; |
|
} |
|
|
|
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_DURATION: |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
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_VIDEO_RATE: |
|
case AV_OPT_TYPE_RATIONAL: return sizeof(AVRational); |
|
case AV_OPT_TYPE_BINARY: return sizeof(uint8_t*) + sizeof(int); |
|
case AV_OPT_TYPE_IMAGE_SIZE:return sizeof(int[2]); |
|
case AV_OPT_TYPE_PIXEL_FMT: return sizeof(enum AVPixelFormat); |
|
case AV_OPT_TYPE_SAMPLE_FMT:return sizeof(enum AVSampleFormat); |
|
case AV_OPT_TYPE_COLOR: return 4; |
|
} |
|
return 0; |
|
} |
|
|
|
int av_opt_copy(void *dst, FF_CONST_AVUTIL55 void *src) |
|
{ |
|
const AVOption *o = NULL; |
|
const AVClass *c; |
|
int ret = 0; |
|
|
|
if (!src) |
|
return 0; |
|
|
|
c = *(AVClass**)src; |
|
if (*(AVClass**)dst && 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) { |
|
if (*field_dst8 != *field_src8) |
|
av_freep(field_dst8); |
|
*field_dst8 = av_strdup(*field_src8); |
|
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); |
|
*field_dst8 = av_memdup(*field_src8, len); |
|
if (len && !*field_dst8) { |
|
ret = AVERROR(ENOMEM); |
|
len = 0; |
|
} |
|
*(int*)(field_dst8 + 1) = len; |
|
} else if (o->type == AV_OPT_TYPE_CONST) { |
|
// do nothing |
|
} else if (o->type == AV_OPT_TYPE_DICT) { |
|
AVDictionary **sdict = (AVDictionary **) field_src; |
|
AVDictionary **ddict = (AVDictionary **) field_dst; |
|
if (*sdict != *ddict) |
|
av_dict_free(ddict); |
|
*ddict = NULL; |
|
av_dict_copy(ddict, *sdict, 0); |
|
if (av_dict_count(*sdict) != av_dict_count(*ddict)) |
|
ret = AVERROR(ENOMEM); |
|
} else { |
|
memcpy(field_dst, field_src, opt_size(o->type)); |
|
} |
|
} |
|
return ret; |
|
} |
|
|
|
int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags) |
|
{ |
|
int ret; |
|
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; |
|
|
|
ret = callback(ranges_arg, obj, key, flags); |
|
if (ret >= 0) { |
|
if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE)) |
|
ret = 1; |
|
(*ranges_arg)->nb_components = ret; |
|
} |
|
return ret; |
|
} |
|
|
|
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; |
|
ranges->nb_components = 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: |
|
case AV_OPT_TYPE_COLOR: |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
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 1; |
|
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; |
|
|
|
if (!ranges) |
|
return; |
|
|
|
for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) { |
|
AVOptionRange *range = ranges->range[i]; |
|
if (range) { |
|
av_freep(&range->str); |
|
av_freep(&ranges->range[i]); |
|
} |
|
} |
|
av_freep(&ranges->range); |
|
av_freep(rangesp); |
|
} |
|
|
|
int av_opt_is_set_to_default(void *obj, const AVOption *o) |
|
{ |
|
int64_t i64; |
|
double d, d2; |
|
float f; |
|
AVRational q; |
|
int ret, w, h; |
|
char *str; |
|
void *dst; |
|
|
|
if (!o || !obj) |
|
return AVERROR(EINVAL); |
|
|
|
dst = ((uint8_t*)obj) + o->offset; |
|
|
|
switch (o->type) { |
|
case AV_OPT_TYPE_CONST: |
|
return 1; |
|
case AV_OPT_TYPE_FLAGS: |
|
case AV_OPT_TYPE_PIXEL_FMT: |
|
case AV_OPT_TYPE_SAMPLE_FMT: |
|
case AV_OPT_TYPE_INT: |
|
case AV_OPT_TYPE_CHANNEL_LAYOUT: |
|
case AV_OPT_TYPE_DURATION: |
|
case AV_OPT_TYPE_INT64: |
|
read_number(o, dst, NULL, NULL, &i64); |
|
return o->default_val.i64 == i64; |
|
case AV_OPT_TYPE_STRING: |
|
str = *(char **)dst; |
|
if (str == o->default_val.str) //2 NULLs |
|
return 1; |
|
if (!str || !o->default_val.str) //1 NULL |
|
return 0; |
|
return !strcmp(str, o->default_val.str); |
|
case AV_OPT_TYPE_DOUBLE: |
|
read_number(o, dst, &d, NULL, NULL); |
|
return o->default_val.dbl == d; |
|
case AV_OPT_TYPE_FLOAT: |
|
read_number(o, dst, &d, NULL, NULL); |
|
f = o->default_val.dbl; |
|
d2 = f; |
|
return d2 == d; |
|
case AV_OPT_TYPE_RATIONAL: |
|
q = av_d2q(o->default_val.dbl, INT_MAX); |
|
return !av_cmp_q(*(AVRational*)dst, q); |
|
case AV_OPT_TYPE_BINARY: { |
|
struct { |
|
uint8_t *data; |
|
int size; |
|
} tmp = {0}; |
|
int opt_size = *(int *)((void **)dst + 1); |
|
void *opt_ptr = *(void **)dst; |
|
if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str))) |
|
return 1; |
|
if (!opt_size || !o->default_val.str || !strlen(o->default_val.str )) |
|
return 0; |
|
if (opt_size != strlen(o->default_val.str) / 2) |
|
return 0; |
|
ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data); |
|
if (!ret) |
|
ret = !memcmp(opt_ptr, tmp.data, tmp.size); |
|
av_free(tmp.data); |
|
return ret; |
|
} |
|
case AV_OPT_TYPE_DICT: |
|
/* Binary and dict have not default support yet. Any pointer is not default. */ |
|
return !!(*(void **)dst); |
|
case AV_OPT_TYPE_IMAGE_SIZE: |
|
if (!o->default_val.str || !strcmp(o->default_val.str, "none")) |
|
w = h = 0; |
|
else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0) |
|
return ret; |
|
return (w == *(int *)dst) && (h == *((int *)dst+1)); |
|
case AV_OPT_TYPE_VIDEO_RATE: |
|
q = (AVRational){0, 0}; |
|
if (o->default_val.str) { |
|
if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0) |
|
return ret; |
|
} |
|
return !av_cmp_q(*(AVRational*)dst, q); |
|
case AV_OPT_TYPE_COLOR: { |
|
uint8_t color[4] = {0, 0, 0, 0}; |
|
if (o->default_val.str) { |
|
if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0) |
|
return ret; |
|
} |
|
return !memcmp(color, dst, sizeof(color)); |
|
} |
|
default: |
|
av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name); |
|
break; |
|
} |
|
return AVERROR_PATCHWELCOME; |
|
} |
|
|
|
int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags) |
|
{ |
|
const AVOption *o; |
|
void *target; |
|
if (!obj) |
|
return AVERROR(EINVAL); |
|
o = av_opt_find2(obj, name, NULL, 0, search_flags, &target); |
|
if (!o) |
|
return AVERROR_OPTION_NOT_FOUND; |
|
return av_opt_is_set_to_default(target, o); |
|
} |
|
|
|
int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer, |
|
const char key_val_sep, const char pairs_sep) |
|
{ |
|
const AVOption *o = NULL; |
|
uint8_t *buf; |
|
AVBPrint bprint; |
|
int ret, cnt = 0; |
|
const char special_chars[] = {pairs_sep, key_val_sep, '\0'}; |
|
|
|
if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep || |
|
pairs_sep == '\\' || key_val_sep == '\\') { |
|
av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found."); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
if (!obj || !buffer) |
|
return AVERROR(EINVAL); |
|
|
|
*buffer = NULL; |
|
av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED); |
|
|
|
while (o = av_opt_next(obj, o)) { |
|
if (o->type == AV_OPT_TYPE_CONST) |
|
continue; |
|
if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags) |
|
continue; |
|
else if (((o->flags & opt_flags) != opt_flags)) |
|
continue; |
|
if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0) |
|
continue; |
|
if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) { |
|
av_bprint_finalize(&bprint, NULL); |
|
return ret; |
|
} |
|
if (buf) { |
|
if (cnt++) |
|
av_bprint_append_data(&bprint, &pairs_sep, 1); |
|
av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0); |
|
av_bprint_append_data(&bprint, &key_val_sep, 1); |
|
av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0); |
|
av_freep(&buf); |
|
} |
|
} |
|
av_bprint_finalize(&bprint, buffer); |
|
return 0; |
|
} |
|
|
|
#ifdef TEST |
|
|
|
typedef struct TestContext |
|
{ |
|
const AVClass *class; |
|
int num; |
|
int toggle; |
|
char *string; |
|
int flags; |
|
AVRational rational; |
|
AVRational video_rate; |
|
int w, h; |
|
enum AVPixelFormat pix_fmt; |
|
enum AVSampleFormat sample_fmt; |
|
int64_t duration; |
|
uint8_t color[4]; |
|
int64_t channel_layout; |
|
void *binary; |
|
int binary_size; |
|
void *binary1; |
|
int binary_size1; |
|
void *binary2; |
|
int binary_size2; |
|
int64_t num64; |
|
float flt; |
|
double dbl; |
|
char *escape; |
|
} TestContext; |
|
|
|
#define OFFSET(x) offsetof(TestContext, x) |
|
|
|
#define TEST_FLAG_COOL 01 |
|
#define TEST_FLAG_LAME 02 |
|
#define TEST_FLAG_MU 04 |
|
|
|
static const AVOption test_options[]= { |
|
{"num", "set num", OFFSET(num), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100 }, |
|
{"toggle", "set toggle", OFFSET(toggle), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1 }, |
|
{"rational", "set rational", OFFSET(rational), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, 10 }, |
|
{"string", "set string", OFFSET(string), AV_OPT_TYPE_STRING, {.str = "default"}, CHAR_MIN, CHAR_MAX }, |
|
{"escape", "set escape str", OFFSET(escape), AV_OPT_TYPE_STRING, {.str = "\\=,"}, CHAR_MIN, CHAR_MAX }, |
|
{"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 1}, 0, INT_MAX, 0, "flags" }, |
|
{"cool", "set cool flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_COOL}, INT_MIN, INT_MAX, 0, "flags" }, |
|
{"lame", "set lame flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_LAME}, INT_MIN, INT_MAX, 0, "flags" }, |
|
{"mu", "set mu flag ", 0, AV_OPT_TYPE_CONST, {.i64 = TEST_FLAG_MU}, INT_MIN, INT_MAX, 0, "flags" }, |
|
{"size", "set size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE,{.str="200x300"}, 0, 0 }, |
|
{"pix_fmt", "set pixfmt", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64 = AV_PIX_FMT_0BGR}, -1, INT_MAX}, |
|
{"sample_fmt", "set samplefmt", OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64 = AV_SAMPLE_FMT_S16}, -1, INT_MAX}, |
|
{"video_rate", "set videorate", OFFSET(video_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0 }, |
|
{"duration", "set duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = 1000}, 0, INT64_MAX}, |
|
{"color", "set color", OFFSET(color), AV_OPT_TYPE_COLOR, {.str = "pink"}, 0, 0}, |
|
{"cl", "set channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT, {.i64 = AV_CH_LAYOUT_HEXAGONAL}, 0, INT64_MAX}, |
|
{"bin", "set binary value", OFFSET(binary), AV_OPT_TYPE_BINARY, {.str="62696e00"}, 0, 0 }, |
|
{"bin1", "set binary value", OFFSET(binary1), AV_OPT_TYPE_BINARY, {.str=NULL}, 0, 0 }, |
|
{"bin2", "set binary value", OFFSET(binary2), AV_OPT_TYPE_BINARY, {.str=""}, 0, 0 }, |
|
{"num64", "set num 64bit", OFFSET(num64), AV_OPT_TYPE_INT64, {.i64 = 1}, 0, 100 }, |
|
{"flt", "set float", OFFSET(flt), AV_OPT_TYPE_FLOAT, {.dbl = 1.0/3}, 0, 100 }, |
|
{"dbl", "set double", OFFSET(dbl), AV_OPT_TYPE_DOUBLE, {.dbl = 1.0/3}, 0, 100 }, |
|
{NULL}, |
|
}; |
|
|
|
static const char *test_get_name(void *ctx) |
|
{ |
|
return "test"; |
|
} |
|
|
|
static const AVClass test_class = { |
|
"TestContext", |
|
test_get_name, |
|
test_options |
|
}; |
|
|
|
int main(void) |
|
{ |
|
int i; |
|
|
|
printf("Testing default values\n"); |
|
{ |
|
TestContext test_ctx = { 0 }; |
|
test_ctx.class = &test_class; |
|
av_opt_set_defaults(&test_ctx); |
|
|
|
printf("num=%d\n", test_ctx.num); |
|
printf("toggle=%d\n", test_ctx.toggle); |
|
printf("string=%s\n", test_ctx.string); |
|
printf("escape=%s\n", test_ctx.escape); |
|
printf("flags=%d\n", test_ctx.flags); |
|
printf("rational=%d/%d\n", test_ctx.rational.num, test_ctx.rational.den); |
|
printf("video_rate=%d/%d\n", test_ctx.video_rate.num, test_ctx.video_rate.den); |
|
printf("width=%d height=%d\n", test_ctx.w, test_ctx.h); |
|
printf("pix_fmt=%s\n", av_get_pix_fmt_name(test_ctx.pix_fmt)); |
|
printf("sample_fmt=%s\n", av_get_sample_fmt_name(test_ctx.sample_fmt)); |
|
printf("duration=%"PRId64"\n", test_ctx.duration); |
|
printf("color=%d %d %d %d\n", test_ctx.color[0], test_ctx.color[1], test_ctx.color[2], test_ctx.color[3]); |
|
printf("channel_layout=%"PRId64"=%"PRId64"\n", test_ctx.channel_layout, (int64_t)AV_CH_LAYOUT_HEXAGONAL); |
|
if (test_ctx.binary) |
|
printf("binary=%x %x %x %x\n", ((uint8_t*)test_ctx.binary)[0], ((uint8_t*)test_ctx.binary)[1], ((uint8_t*)test_ctx.binary)[2], ((uint8_t*)test_ctx.binary)[3]); |
|
printf("binary_size=%d\n", test_ctx.binary_size); |
|
printf("num64=%"PRId64"\n", test_ctx.num64); |
|
printf("flt=%.6f\n", test_ctx.flt); |
|
printf("dbl=%.6f\n", test_ctx.dbl); |
|
av_opt_free(&test_ctx); |
|
} |
|
|
|
printf("\nTesting av_opt_is_set_to_default()\n"); |
|
{ |
|
int ret; |
|
TestContext test_ctx = { 0 }; |
|
const AVOption *o = NULL; |
|
test_ctx.class = &test_class; |
|
|
|
av_log_set_level(AV_LOG_QUIET); |
|
|
|
while (o = av_opt_next(&test_ctx, o)) { |
|
ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0); |
|
printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : ""); |
|
} |
|
av_opt_set_defaults(&test_ctx); |
|
while (o = av_opt_next(&test_ctx, o)) { |
|
ret = av_opt_is_set_to_default_by_name(&test_ctx, o->name, 0); |
|
printf("name:%10s default:%d error:%s\n", o->name, !!ret, ret < 0 ? av_err2str(ret) : ""); |
|
} |
|
av_opt_free(&test_ctx); |
|
} |
|
|
|
printf("\nTest av_opt_serialize()\n"); |
|
{ |
|
TestContext test_ctx = { 0 }; |
|
char *buf; |
|
test_ctx.class = &test_class; |
|
|
|
av_log_set_level(AV_LOG_QUIET); |
|
|
|
av_opt_set_defaults(&test_ctx); |
|
if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) { |
|
printf("%s\n", buf); |
|
av_opt_free(&test_ctx); |
|
memset(&test_ctx, 0, sizeof(test_ctx)); |
|
test_ctx.class = &test_class; |
|
av_set_options_string(&test_ctx, buf, "=", ","); |
|
av_free(buf); |
|
if (av_opt_serialize(&test_ctx, 0, 0, &buf, '=', ',') >= 0) { |
|
printf("%s\n", buf); |
|
av_free(buf); |
|
} |
|
} |
|
av_opt_free(&test_ctx); |
|
} |
|
|
|
printf("\nTesting av_set_options_string()\n"); |
|
{ |
|
TestContext test_ctx = { 0 }; |
|
static const char * const 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", |
|
"size=1024x768", |
|
"size=pal", |
|
"size=bogus", |
|
"pix_fmt=yuv420p", |
|
"pix_fmt=2", |
|
"pix_fmt=bogus", |
|
"sample_fmt=s16", |
|
"sample_fmt=2", |
|
"sample_fmt=bogus", |
|
"video_rate=pal", |
|
"video_rate=25", |
|
"video_rate=30000/1001", |
|
"video_rate=30/1.001", |
|
"video_rate=bogus", |
|
"duration=bogus", |
|
"duration=123.45", |
|
"duration=1\\:23\\:45.67", |
|
"color=blue", |
|
"color=0x223300", |
|
"color=0x42FF07AA", |
|
"cl=stereo+downmix", |
|
"cl=foo", |
|
"bin=boguss", |
|
"bin=111", |
|
"bin=ffff", |
|
"num64=bogus", |
|
"num64=44", |
|
"num64=44.4", |
|
"num64=-1", |
|
"num64=101", |
|
"flt=bogus", |
|
"flt=2", |
|
"flt=2.2", |
|
"flt=-1", |
|
"flt=101", |
|
"dbl=bogus", |
|
"dbl=2", |
|
"dbl=2.2", |
|
"dbl=-1", |
|
"dbl=101", |
|
}; |
|
|
|
test_ctx.class = &test_class; |
|
av_opt_set_defaults(&test_ctx); |
|
|
|
av_log_set_level(AV_LOG_QUIET); |
|
|
|
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) |
|
printf("Error '%s'\n", options[i]); |
|
else |
|
printf("OK '%s'\n", options[i]); |
|
} |
|
av_opt_free(&test_ctx); |
|
} |
|
|
|
printf("\nTesting av_opt_set_from_string()\n"); |
|
{ |
|
TestContext test_ctx = { 0 }; |
|
static const char * const options[] = { |
|
"", |
|
"5", |
|
"5:hello", |
|
"5:hello:size=pal", |
|
"5:size=pal:hello", |
|
":", |
|
"=", |
|
" 5 : hello : size = pal ", |
|
"a_very_long_option_name_that_will_need_to_be_ellipsized_around_here=42" |
|
}; |
|
static const char * const shorthand[] = { "num", "string", NULL }; |
|
|
|
test_ctx.class = &test_class; |
|
av_opt_set_defaults(&test_ctx); |
|
|
|
av_log_set_level(AV_LOG_QUIET); |
|
|
|
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_opt_set_from_string(&test_ctx, options[i], shorthand, "=", ":") < 0) |
|
printf("Error '%s'\n", options[i]); |
|
else |
|
printf("OK '%s'\n", options[i]); |
|
} |
|
av_opt_free(&test_ctx); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
#endif
|
|
|