[Mp4-tech] Frame Rate Control Problems

[Philip Hong]

I've implemented the frame rate control based on L.1 of Annex L of
ISO/IEC 14496-2. I am not sure about the settings of some of the
parameters. My questions are as follows:
1. How to define a sequence (or segment)? Is it defined as the frames
between two I-frames?
2. How to define Rp which is defined as bits to be removed from the
buffer per picture?
3. How to define Nr which is defined as the number of P-frames remaining
for encoding? How can I know in advance how many P-frames are in the
sequence?
4. What is the parameter X11 appears in Step 3 on page 477? The SRC
equation does not has this parameter. What exactly it is?
5. What is "total_data_number" in the UpdateRDModel function?
6. I've a query on the correctness of a "for loop" of the UpdateRDModel
function on page 478. I think the "for loop" should be "for (i=n-w;
i<=n; i++)" instead of "for (i=n; i>n-w; i++)".
Thanks a lot.