[mythtv] SVN 7738 transcode problems

[Warren Volz]

I updated to SVN 7738 this weekend and now transcode is broken. The  
issue is that a transcode from MPEG2 to MPEG-4 gets larger rather  
than smaller. Here's output from my backend:

2005-11-14 09:21:23.837 Transcode Starting for Everybody Loves  
Raymond "Left Back": 23.1 MB (Autodetect)
2005-11-14 09:21:23.842 transcode: Transcode Starting
2005-11-14 09:21:23.989 Using runtime prefix = /usr/local
2005-11-14 09:21:24.102 New DB connection, total: 1
2005-11-14 09:21:24.138 New DB connection, total: 2
2005-11-14 09:21:24.143 Transcoding from /mnt/mythtv/tv/ 
1022_20051113235300.mpg to /mnt/mythtv/tv/1022_20051113235300.mpg.tmp
0: start_time: 0.036 duration: 3.282
1: start_time: 0.026 duration: 3.264
stream: start_time: 0.289 duration: 36.581 bitrate=5303 kb/s
2005-11-14 09:21:24.212 AFD: Opened codec 0x809d4c0, id(MPEG2VIDEO)  
type(Video)
2005-11-14 09:21:24.231 AFD: Opened codec 0x80ae5f0, id(MP2) type(Audio)
2005-11-14 09:21:24.236 Transcode: Profile detected as MPEG-2
2005-11-14 09:21:24.299 New DB connection, total: 3
2005-11-14 09:21:24.362 Set output video codec to: MPEG-4
2005-11-14 09:21:24.430 Set output audio codec to: MP3
2005-11-14 09:21:41.309 Transcoding /mnt/mythtv/tv/ 
1022_20051113235300.mpg done
2005-11-14 09:21:41.360 Transcode Finished for Everybody Loves  
Raymond "Left Back": 23.1 MB => 48.9 MB (Autodetect)
2005-11-14 09:21:41.398 transcode: Transcode Finished

I added some extra output in case your wondering about the "Set  
output video/audio codec" lines. I can't find any trac tickets  
indicating transcode had a problem like this, what am I missing?

System Info:
gcc 3.3.4
Slackware 10.0
Intel x86

-Warren