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avfilter: handle duplicates in the options string

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Use the same logic as fftools/cmdutils - when a flag-type option starts
with [+-], append it to the existing value.
This commit is contained in:
Anton Khirnov 2022-03-10 11:31:25 +01:00
parent a0f04433f4
commit 1b7ecb3eef
1 changed files with 6 additions and 2 deletions
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8
libavfilter/avfilter.c
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@ -862,13 +862,17 @@ static int process_options(AVFilterContext *ctx, AVDictionary **options,
return ret;
}
} else {
av_dict_set(options, key, value, 0);
if (!av_opt_find(ctx->priv, key, NULL, 0, AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
o = av_opt_find(ctx->priv, key, NULL, 0,
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
if (!o) {
av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key);
av_free(value);
av_free(parsed_key);
return AVERROR_OPTION_NOT_FOUND;
}
av_dict_set(options, key, value,
(o->type == AV_OPT_TYPE_FLAGS &&
(value[0] == '-' || value[0] == '+')) ? AV_DICT_APPEND : 0);
}
av_free(value);