Function allows to create string containing object's serialized options. Such string may be passed back to av_set_options_string() in order to restore options. Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
New function allows to check if option is set to its default value Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>