Add ff_ prefix for internal API function. Change type of param from int into enum AVCodecID as it is more specific. Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com> Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>