[linux-dvb] Couple of MPEG structures related questions

Johannes Stezenbach js at linuxtv.org
Wed Jul 13 17:10:37 CEST 2005


Andrew de Quincey wrote:
> 2) mpeg_multiplex_buffer_utilization descriptors...
> 
> They're defined to be:
> bound_valid_flag		: 1; 
> ltw_offset_lower_bound		: 15;
> reserved			: 1;
> ltw_offset_upper_bound		: 15;
> 
> The problem is ltw_offset_upper_bound is defined to be 14 bits in the 
> structure in ISO13818-1, but in the accompanying text, it is said to be 15 
> bits... does anyone know which is right?

I would guess 15 is right (how can the upper bound be smaller
than the lower bound?). But I'm curious what this descriptor
is good for, and if anyone has ever seen a stream which contains it.

Johannes




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