The obj passed to av_opt_find() is fake -- only a double pointer to AVClass instead of a required pointer to a struct containing AVClass. This is useful for searching for options without needing to allocate the corresponding object.
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The obj passed to av_opt_find() is fake -- only a double pointer to AVClass instead of a required pointer to a struct containing AVClass. This is useful for searching for options without needing to allocate the corresponding object.