Function parse_object_stream 

pub fn parse_object_stream(
    data: &[u8],
    dict: &HashMap<Name, Object>,
    mode: ParsingMode,
) -> Result<ObjectStreamContents, PdfError>

Parse the decompressed contents of an object stream.

The stream dict must contain:

• /N: number of objects in the stream
• /First: byte offset of the first object data (past the header)

The stream data format is:

objnum1 offset1 objnum2 offset2 ... objnumN offsetN
<object1_data> <object2_data> ... <objectN_data>

data is the decompressed stream bytes. dict is the stream’s dictionary.