[FFmpeg-devel] [FFmpeg-devel-irc] IRC log for 2010-03-27

[Michael Niedermayer]

On Sun, Mar 28, 2010 at 12:00:03AM +0000, irc at mansr.com wrote:
[...]
> [04:44:12] <peloverde> makes me want to just adapt the WMA encoder to do AAC
> [04:47:35] <Dark_Shikari> lol
> [04:47:38] <peloverde> Here is the ABR cutoff equation "cutoff_coeff = avctx->bit_rate / (4.0f * avctx->sample_rate * avctx->channels)" lol
> [04:47:45] <Dark_Shikari> for wma?
> [04:48:09] <peloverde> for AAC
> [04:48:21] <Dark_Shikari> ah
> [04:50:46] <astrange> the wma encoder is only 400 lines, i'm surprised it sounds good at 128kbit

my wma implmentation is very basic, no psychoacoustic model, constant bytes
per frame, ...
It should be easy to improve it if someone wants ...


> [04:51:09] <astrange> well, requesting 128kbit gets 140kbit

dont use asf!
128kbit wmav2:
-rw-r----- 1 michael michael 3949340 2010-03-30 18:11 test.asf
-rw-r----- 1 michael michael 3795748 2010-03-30 18:11 test.avi

if wma sounds better than aac then there must be a pretty nasty bug in the
aac encoder

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Opposition brings concord. Out of discord comes the fairest harmony.
-- Heraclitus
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20100330/208f2e0e/attachment.pgp>