char *psz_vcodec, char * psz_acodec, char * psz_scodec,
int i_vb, float f_scale, int i_ab, int i_channels,
vlc_bool_t b_soverlay, char *psz_additional )
char *psz_vcodec, char * psz_acodec, char * psz_scodec,
int i_vb, float f_scale, int i_ab, int i_channels,
vlc_bool_t b_soverlay, char *psz_additional )