Parameters:
- Mpeg2SeqHdr *hdr
- Pointer to previously allocated and initialized Mpeg2SeqHdr structure.
Return value:
VBV buffer size. 0 indicates no VBV buffer info.
Description:
Returns VBV buffer size info from sequence header. 0 indicates that no VBV buffer info was present (i.e., no buffer overflow/underflow guarantees can be made).