[MPlayer-users] [BUG] mencoder -vf softpulldown -oac mp3lame ==> audio corruption?

[Corey Hickey]

Hi,

I seem to have run into an odd bug wherein using -vf softpulldown seems
to cause bad audio distortion for mencoder, with this message:

Too many video packets in the buffer: (4096 in 8274071 bytes).
Maybe you are playing a non-interleaved stream/file or the codec failed?
For AVI files, try to force non-interleaved mode with the -ni option.
ds_fill_buffer: EOF reached (stream: audio)

[--full logs uploaded--]

If I encode the audio to mp3lame, the sound gets distorted at 72
seconds, and then gets completely bad at 82 seconds. If I use -oac copy,
the audio sounds fine but the encoded video looks like it "jumps
backward" a frame every couple seconds.

Normally, I would have just thought I ripped the disk poorly, clean it
off, and try again, but mplayer can play the troublesome section without
a problem, even with -vf softpulldown.

=================================================
I am uploading some files to mphq ftp incoming.
All of the below files are also available at:
http://bugfood.casa-z.org/mpbug/audio/

softpulldown-audio-src.vob
     Unfortunately, I couldn't really cut the beginning off this, so it's
     61MB :(

softpulldown-audio-mp3.avi, softpulldown-audio-mp3.log
     mencoder softpulldown-audio-src.vob -vf softpulldown -ovc lavc \
     -lavcopts vcodec=mpeg4 -oac mp3lame -ofps 23.976 -o \
     softpulldown-audio-mp3.avi &> softpulldown-audio-mp3.log

softpulldown-audio-copy.avi, softpulldown-audio-src.vob
     mencoder softpulldown-audio-src.vob -vf softpulldown -ovc lavc \
     -lavcopts vcodec=mpeg4 -oac copy -ofps 23.976 -o \
     softpulldown-audio-copy.avi &> softpulldown-audio-copy.log

softpulldown-audio-description.txt
     The text of this message

===================================================
Now, before anybody reminds me that encoding right after using
softpulldown is a bad idea, I know that. :) These are just simplified
test cases.

==================================================
System information:

MEncoder dev-CVS-031025-20:01-3.3.2 (C) 2000-2003 MPlayer Team

Debian Testing/Sarge

Linux bugfood 2.4.23-pre5 #1 Sat Sep 27 16:38:27 PDT 2003 i686 GNU/Linux
-rwxr-xr-x    1 root     root      1230832 Sep 21 05:56 /lib/libc-2.3.2.so
lrwxrwxrwx    1 root     root           14 Sep 27 15:37 /lib/libc.so.5 
-> libc.so.5.4.46
-rw-r--r--    1 root     root       565940 Sep 22 08:45 /lib/libc.so.5.4.46
lrwxrwxrwx    1 root     root           13 Sep 27 16:56 /lib/libc.so.6 
-> libc-2.3.2.so

gcc version 3.3.2 20031005 (Debian prerelease)

GNU ld version 2.14.90.0.6 20030820 Debian GNU/Linux

GNU assembler 2.14.90.0.6 20030820 Debian GNU/Linux

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 8
model name      : AMD Athlon(tm)
stepping        : 0
cpu MHz         : 1890.062
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips        : 3761.76

Thanks for the help,
Corey