[libdv-dev] new dvgrab version

[Arne S. <ar...@sc...>]

Hi all,

a new dvgrab version is available. Download it from: 
http://www.schirmacher.de/arne/dvgrab/index_e.html .

This version contains a few bug fixes in the audio section for the Type-2 AVI 
file format. I believe that the clicks and dropouts of the earlier version are 
now fixed and that 16 bit audio data now works good with both PAL and NTSC 
formats. Please send me a note otherwise.

My SMTP 314M specification does not contain all values for the "number of audio 
samples per frame" field in the AAUX source pack. It has only the values 20, 22 
and 24 for 1600, 1602 and 1920 samples. My camcorder sends also a value 25 on 
occasion, other users have send me samples that contain the value 21.

If I switch my camcorder to 12 bit audio, it will send the value 16 (which 
corresponds to 32 kHz instead of 48 kHz). Since dvgrab can't deal with 12 bit 
audio yet, it will send lots of error messages when you are using 12 bit audio 
mode. So please use 16 bit for now. If you have audio error messages while 
using 16 bit audio and --format dv2, please send me an email.

If you have DV specifications other than the 314M document or if you have other 
information on these new types of AAUX packs (12 bit audio and what else might 
be available), I would appreciate it if you can send me these documents (or the 
relevant excerpts). The shuffle algorithm for 12 bit audio seems to be 
different too, the existing algorithm did not work when applied to 12 bit audio 
data.

Thanks, Arne