s337m_get_offset_and_codec does not make use of AVFormatContext: AVClass is enough for logging. Will facilitate further use from outside Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: Lauri Kasanen Reviewed-by: Tomas Härdin
Use integer position instead of pointer for loop variable. Also only skip header fields after header has been fully validated.
