Displaying 4 results from an estimated 4 matches for "floor0_number_of_books".
2008 Feb 17
2
The one thread to solve problems in the Vorbis documentation
Since documentation is now becoming an important step in the Xiph
roadmap, I figure we might as well have a thread to discuss possible
problems.
I'd like to bring attention to the following tickets in Trac:
* 1158 [1]
* 1159 [2]
* 1169 [3]
They all seem like sensible concerns and possible solutions should be
discussed here.
-Ivo
[1] https://trac.xiph.org/ticket/1158
[2]
2004 Dec 21
1
signedness
Hi,
I need another clarification regarding the standard.
In floor0 header decode (setup), the point no.7 says that
if any of [floor0_order], [floor0_rate], [floor0_bark_map_size],
floor0_amplitude_bits], [floor0_amplitude_offset] or
[floor0_number_of_books] are less than zero, the stream is not decodable
But as we see, all those values are read as unsigned integers. Now I'm
not able to understand how can these values be less than 0, to render
the stream undecodable ? Is it that I understood wrongly or that this
line is not valid anymore ?
Can a...
2003 Apr 27
2
some more Spec questions
Hi !
<p>I previously posted a mail in the vorbis-dev mailing list because I'm
trying to implement a vorbis decoder in java from scratch in my
sparetime and have some questions about the bitstream spec.
As I did not get any replies, I got kinda dissapointed and
demotivated - But now.... I'm trying to take my chances here.
:-)
I'm NOT a newbie to source coding (I successfully
2011 Apr 18
0
Error in floor0 decode specification
Hello,
It seems there is an error in the algorithm for floor0 decode in section
6.2.2 of the Vorbis specification.
Here's the relevant part:
3 3) [coefficients] is an empty, zero length vector
4 4) [booknumber] = read an unsigned integer of ilog(
[floor0_number_of_books] ) bits
5 5) if ( [booknumber] is greater than the highest number decode
codebook ) then packet is undecodable
6 6) [last] = zero;
7 7) vector [temp_vector] = read vector from bitstream using
codebook number [floor0_book_list] element [booknumber] in VQ context.
8...