On Wed, Jul 19, 2006 at 11:26:47AM -0400, Rich Felker wrote:
On Wed, Jul 19, 2006 at 12:36:27PM +0200, Luca Barbato wrote:
Michael Niedermayer wrote:
how to parse all the vorbis header variants:
1) search for the 1st occurance of 01,'v','o','r','b','i','s' the found match and the following 23 bytes are the 1st header packet 2) search for the 1st occurance of 03,'v','o','r','b','i','s' after here 3) read an unsigned integer of 32 bits and skip that many bytes 4) [user_comment_list_length] = read an unsigned integer of 32 bits 5) iterate [user_comment_list_length] times { 6) read an unsigned integer of 32 bits and skip that many bytes } 7) skip 1 byte 8) the match in 2) and what follows until here is the 2nd header packet 9) search for the 1st occurance of 05,'v','o','r','b','i','s' after here the matching part and what follows is the 3rd header packet
if there are no objections then ill propose this on vorbis-dev spelling fixes and other suggestions welcome
[...]
Looks ok.
Needs to specify endianness for the 'unsigned integer of 32 bits' unless that's already clear from something else.. Otherwise looks good!
entire vorbis spec is spefied like this, all numbers are read in... bah, i don't remember, some endianess.. - ods15