video streaming - decoding h.264 frame data in using AVAssetReader iOS -

i have questions on avassetreader.
reading view data sent ip camera using api provided them. api,

the following return api each frame

1.buffer contain frame raw data

2.frame type or b frame

3.codec information : h.264

4.some other frame info frameinfo object

are above information enough decoding using avassetreader?

so far see examples getting video source url or file, can provide me sample codes decoding raw data frame buffer

much appreciated help