[MPlayer-users] dvd - video and audio desync

[Marcin Cylke]

Hello 
I'm experiencing problems with audio desync while playing a newly bought
"The Snatch" dvd. I'm using MPlayer-0.90pre10 on freebsd 4.6 (with
user_ldt compiled in) - everything compiled with gcc-2.95.

The problem is that while playing normal movie track audio is ok, but
when I try to watch some additional stuff (but not all, some of them)
I'm getting audio desyncs. It looks strange, because mplayer doesn't say
anything about desync. Exerything runs smoothly except audio. It can't
be adjusted manualy, because it changes in time.

Here are two outputs from mplaying:
1) a movie
2) making the snatch - additional stuff <--that one with desync

1)

$ mplayer -vo x11 -dvd-device /dev/acd1a -alang en -dvd 1


MPlayer 0.90pre10-2.95.3 (C) 2000-2002 Arpad Gereoffy (see DOCS)

CPU: Advanced Micro Devices Athlon 4 PM Palomino/Athlon MP
Multiprocessor/Athlon XP eXtreme Performance (Family: 6, Stepping: 2)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE

Reading /home/marcin/.mplayer/codecs.conf: 38 audio & 110 video codecs
init_freetype
Using usleep() timing
Can't open input config file /home/marcin/.mplayer/input.conf : No such
file or directory
Can't open input config file /usr/local/etc/mplayer/input.conf : No such
file or directory
Falling back on default (hardcoded) input config

Playing DVD title 1
Using CSS Key-cache dir: /home/marcin/.mplayer/DVDKeys/SNATCH
Reading disc structure, please wait...
There are 36 titles on this DVD.
There are 28 chapters in this DVD title.
There are 1 angles in this DVD title.
DVD successfully opened!
Selected DVD audio channel: 128 language: en
Detected MPEG-PS file format!
VIDEO:  MPEG2  720x576  (aspect 3)  25.00 fps  12250.0 kbps (1531.2
kbyte/s)
=======================================================================
===
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe)  48000 Hz  448.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
=======================================================================
===
vo: X11 running at 1280x1024 with depth 24 and 32 bpp (":0.0" => local
display)
=======================================================================
===
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES)
Couldn't find matching colorspace - retrying with -vop scale...
Opening video filter: [scale]
Sorry, selected video_out device is incompatible with this codec.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder v2.0
libmpeg2: Using MMXEXT for IDCT transform
libmpeg2: Using MMXEXT for motion compensation
VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [x11] 720x576 => 1024x576 Planar YV12 
Using MMX2 for colorspace transform
SwScaler: using unscaled Planar YV12 -> BGR 32-bit special converter
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2)
=======================================================================
===
AO: [oss] 48000Hz 2ch Signed 16-bit (Little-Endian)
Building audio filter chain for 48000Hz/2ch/16bit ->
48000Hz/2ch/16bit...
Start playing...
A:   0.3 V:   0.3 A-V: -0.012 ct:  0.000    1/  1   0%  0%  0.0% 0 0 0%

Exiting... (Quit)



2)

$ mplayer -vo x11 -dev-device /dev/acd1a -alang en -dvd 6


MPlayer 0.90pre10-2.95.3 (C) 2000-2002 Arpad Gereoffy (see DOCS)

CPU: Advanced Micro Devices Athlon 4 PM Palomino/Athlon MP
Multiprocessor/Athlon XP eXtreme Performance (Family: 6, Stepping: 2)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE

Reading /home/marcin/.mplayer/codecs.conf: 38 audio & 110 video codecs
init_freetype
Using usleep() timing
Can't open input config file /home/marcin/.mplayer/input.conf : No such
file or directory
Can't open input config file /usr/local/etc/mplayer/input.conf : No such
file or directory
Falling back on default (hardcoded) input config

Playing DVD title 6
Using CSS Key-cache dir: /home/marcin/.mplayer/DVDKeys/SNATCH
Reading disc structure, please wait...
There are 36 titles on this DVD.
There are 1 chapters in this DVD title.
There are 1 angles in this DVD title.
DVD successfully opened!
Selected DVD audio channel: 128 language: en
Detected MPEG-PS file format!
VIDEO:  MPEG2  720x576  (aspect 3)  25.00 fps  10000.0 kbps (1250.0
kbyte/s)
=======================================================================
===
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 2.0 (stereo)  48000 Hz  192.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 24000->192000 (192.0 kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
=======================================================================
===
vo: X11 running at 1280x1024 with depth 24 and 32 bpp (":0.0" => local
display)
=======================================================================
===
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES)
Couldn't find matching colorspace - retrying with -vop scale...
Opening video filter: [scale]
Sorry, selected video_out device is incompatible with this codec.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder v2.0
libmpeg2: Using MMXEXT for IDCT transform
libmpeg2: Using MMXEXT for motion compensation
VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [x11] 720x576 => 1024x576 Planar YV12 
Using MMX2 for colorspace transform
SwScaler: using unscaled Planar YV12 -> BGR 32-bit special converter
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2)
=======================================================================
===
AO: [oss] 48000Hz 2ch Signed 16-bit (Little-Endian)
Building audio filter chain for 48000Hz/2ch/16bit ->
48000Hz/2ch/16bit...
Start playing...
A:   0.3 V:   0.3 A-V: -0.024 ct:  0.000    1/  1   0%  0%  0.0% 0 0 0%

Exiting... (Quit)

Well, that's all. I don't know is this a bug. Should I fill in the
bugreport?

Thanks for any answer.

Marcin Cylke