[MPlayer-users] problems playing ac3 audio only file

[Heinz Wiesinger]

Heinz Wiesinger wrote:
> Guillaume POIRIER wrote:
> > Hello,
> >
> > On Sun, Nov 23, 2008 at 10:06 PM, Heinz Wiesinger <HMWiesinger at bnet.at>
>
> wrote:
> > > Hi!
> > >
> > > I have a problem playing an audio file, encoded in ac3 with MPlayer.
> > >
> > > MPlayer's output:
> > > -----------------------
> > > MPlayer dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
> > > CPU: Genuine Intel(R) CPU           T2500  @ 2.00GHz (Family: 6, Model:
> > > 14, Stepping: 8)
> > > CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
> > > Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
> > > mplayer: could not connect to socket
> > > mplayer: No such file or directory
> > > Failed to open LIRC support. You will not be able to use your remote
> > > control.
> > >
> > > Playing Linkin Park - Cure For The Itch (Video Version).ac3.
> > > RAWDV file format detected.
> > > VIDEO:  [DVSD]  720x576  24bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
> > > [VO_XV] Could not grab port 355.
> > > =======================================================================
> > >== = Opening video decoder: [dshow] DirectShow video codecs
> > > Decoder supports the following YUV formats: YUY2 UYVY
> > > Decoder is capable of YUV output (flags 0x9)
> > > VDec: vo config request - 720 x 576 (preferred colorspace: Packed YUY2)
> > > [PP] Using codec's postprocessing, max q = 4.
> > > VDec: using Packed YUY2 as output csp (no 0)
> > > Movie-Aspect is undefined - no prescaling applied.
> > > VO: [xv] 720x576 => 720x576 Packed YUY2
> > > Selected video codec: [qdv] vfm: dshow (Sony Digital Video (DV))
> > > =======================================================================
> > >== =
> > > =======================================================================
> > >== = Opening audio decoder: [libdv] Raw DV Audio Decoder
> > > Unknown/missing audio format -> no sound
> > > ADecoder init failed :(
> > > Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
> > > Cannot find codec 'dvaudio' in libavcodec...
> > > ADecoder init failed :(
> > > ADecoder init failed :(
> > > Cannot find codec for audio format 0x56444152.
> > > Read DOCS/HTML/en/codecs.html!
> > > Audio: no sound
> > > Starting playback...
> > > V:   0.4  10/ 10 ??% ??% ??,?% 0 0
> > >
> > > Exiting... (End of file)
> > > -----------------------
> > >
> > > xine and ffplay are both able to play the file just fine. I also tried
> > > "-ac ffac3", "-ac a52" and "-af ac3".
> > > Tested with r28008.
> >
> > Retry with the option "-demuxer lavf"
>
> Ah, yes. Forgot about that one. But it doesn't help either:
> --------------------
> MPlayer dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
> CPU: Genuine Intel(R) CPU           T2500  @ 2.00GHz (Family: 6, Model: 14,
> Stepping: 8)
> CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
> Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
> mplayer: could not connect to socket
> mplayer: No such file or directory
> Failed to open LIRC support. You will not be able to use your remote
> control.
>
> Playing Linkin Park - Cure For The Itch (Video Version).ac3.
>
>
> Exiting... (End of file)
> --------------------
>
> when starting in verbose mode I also get this:
> --------------------
> Playing Linkin Park - Cure For The Itch (Video Version).ac3.
> get_path('sub/') -> '/home/hwiesinger/.mplayer/sub/'
> [file] File size is 1532160 bytes
> STREAM: [file] Linkin Park - Cure For The Itch (Video Version).ac3
> STREAM: Description: File
> STREAM: Author: Albeu
> STREAM: Comment: based on the code from ??? (probably Arpi)
> LAVF_check: no clue about this gibberish!
> --------------------

Alright, I found a hint in the MPlayer FAQ:

mplayer -demuxer rawaudio -rawaudio format=0x2000

With that I get it to play just fine. Isn't there a way to make MPlayer try 
that case automatically? But then again if there were, it probably would have 
been done already and it wouldn't be mentioned in the FAQ....

Still I would like to see that anytime in the future :)

Grs,
Heinz
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