How to locate the intra dct Coefficient in blocks of mpeg-4 visual stream?

Question

is there any 'easy' way to locate the specific syntax unit(like an intra dct coefficient in 8x8 blocks) in a mpeg4 visual stream?

or just say , the only way to do it is analysing the stream with all the detail?

Answer 1

No easy way at all. You have to decode the stream to get those. EDIT Use ffmpeg to get those. A single fprintf in the right place should give it to you.