Function rsmpeg::ffi::av_dict_set

pub unsafe extern "C" fn av_dict_set(
    pm: *mut *mut AVDictionary, 
    key: *const i8, 
    value: *const i8, 
    flags: i32
) -> i32

Set the given entry in *pm, overwriting an existing entry.

Note: If AV_DICT_DONT_STRDUP_KEY or AV_DICT_DONT_STRDUP_VAL is set, these arguments will be freed on error.

Warning: Adding a new entry to a dictionary invalidates all existing entries previously returned with av_dict_get.

@param pm pointer to a pointer to a dictionary struct. If *pm is NULL a dictionary struct is allocated and put in *pm. @param key entry key to add to *pm (will either be av_strduped or added as a new key depending on flags) @param value entry value to add to *pm (will be av_strduped or added as a new key depending on flags). Passing a NULL value will cause an existing entry to be deleted. @return >= 0 on success otherwise an error code <0