BUGREPORT: WMV files will not play without `-demuxer lavf'

Hello All,

MPlayer cannot play any WMV file without the `-demuxer lavf' flag.
There is no video or audio, only the message:
`Invalid number of channels 48000, assuming 2.' repeating
forever.

MPlayer version: SVN-r35715-4.7.2
O/S: Windows 8 Pro
CPU: Intel Core 2 Duo 2.53 GHz
GCC: 4.7.2

Binutils: 2.23.1


It happens with any WMV file, but I uploaded quality_sample_wmv.wmv
and quality_sample_wmv.txt containing output of `mplayer -v' to
ftp://upload.mplayerhq.hu/incoming anyway.

Invalid number of channels 48000, assuming 2.
Building audio filter chain for 1572864000Hz/2ch/s16le -> 0Hz/0ch/??...
[libaf] Adding filter dummy 
[dummy] Was reinitialized: 1572864000Hz/2ch/s16le
[dummy] Was reinitialized: 1572864000Hz/2ch/s16le
Trying every known audio driver...
ao_win32: Samplerate:1572864000Hz Channels:2 Format:s16le
ao_win32: Buffersize:4096
ao_win32: format not supported switching to default
AO: [win32] 44100Hz 2ch s16le (2 bytes per sample)
AO: Description: Windows waveOut audio output
AO: Author: Sascha Sommer <[email protected]>
Invalid number of channels 48000, assuming 2.
Building audio filter chain for 192000Hz/2ch/s16le -> 44100Hz/2ch/s16le...
[dummy] Was reinitialized: 192000Hz/2ch/s16le
[libaf] Adding filter lavcresample 
[dummy] Was reinitialized: 44100Hz/2ch/s16le
[dummy] Was reinitialized: 44100Hz/2ch/s16le
Video: no video
Freeing 61 unused video chunks.
Starting playback...
Invalid number of channels 48000, assuming 2.
Invalid number of channels 48000, assuming 2.
Invalid number of channels 48000, assuming 2.
Invalid number of channels 48000, assuming 2.
...
Repeats forever
...



Regards,
Johnn Brown.