* transcode: follow the same logic for ab than vb. (ie for a small value

it's used as kb/s for higher ones it's b/s).
Just a remember, transcode options are:
acodec= mpga,a52
    ab (kb/s)
vcodec= mpgv,mp4v,h263,DIV1,DIV2,DIV3,I420,I422,I444,RV24,YUY2
    width
    height
    vb (kb/s)
    vt (b/s)
    deinterlace
    croptop
    cropbottom
    cropleft
    cropright
    keyint
    hq
    qmin (between 1 and 32)
    qmax (between 1 and 32)
only acodec and/or vcodec are mandatories (and it's a good idea to always
define vb,vt, and/or ab)

modules/stream_out/transcode.c

@@ -2,7 +2,7 @@
  * transcode.c
  *****************************************************************************
  * Copyright (C) 2001, 2002 VideoLAN
- * $Id: transcode.c,v 1.14 2003/05/03 18:11:42 fenrir Exp $
+ * $Id: transcode.c,v 1.15 2003/05/04 18:51:34 fenrir Exp $
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *
@@ -145,6 +145,10 @@ static int Open( vlc_object_t *p_this )
         if( ( val = sout_cfg_find_value( p_stream->p_cfg, "ab" ) ) )
         {
             p_sys->i_abitrate = atoi( val );
+            if( p_sys->i_abitrate < 4000 )
+            {
+                p_sys->i_abitrate *= 1000;
+            }
         }
 
         msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",