How to find Motion Vectors in H.264 bitstream? [Archive]

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Nasr

4th June 2007, 10:59

Hi,
I have JM H.264 coded bit stream in test.264 file. The start of every NALU is identifiable by 24 bit start code. I want to identify Motion vectors and Transformed residual data (of I,P & B frames) so that I can apply Unequal Error Protecton to it and analyze its performance.
What will be the easy :) and helpful way to find this.
Thanks!

Guest

4th June 2007, 12:54

Refer to the AVC specification to see how it is coded. You can also trace through the JM reference decoder in your debugger.

Nasr

13th June 2007, 10:01

Refer to the AVC specification to see how it is coded. You can also trace through the JM reference decoder in your debugger.
Thanks for reply!
I want to decode a bitstream after Unequal error protection. But the JM decoder cant decode the stream even if there are few bit errors in low priority (Partition C) stream.
Can u identify me how to solve this problem. So that i investigate different Unequal error protection techniques by comparing resultant decoded stream PSNR.