[MPlayer-users] Pulsing static sound with -ac hwac3 in Mac OS X

[Marcus Svensson]

  Guillaume POIRIER wrote:
> Hi,
>
> On 3/4/07, Marcus Svensson <macke at illion.se> wrote:
>> Guillaume POIRIER wrote:
>> > Hi,
>> >
>> > On 3/4/07, Marcus Svensson <macke at illion.se> wrote:
>> >> I have a problem getting AC3 passthrough to work. With the command 
>> line
>> >> option -ac hwac3 set all I get is a nasty pulsing static sound.
>> >>
>> >> The log tells me:
>> >>
>> >> Forced audio codec: hwac3
>> >> Opening audio decoder: [hwac3] AC3/DTS pass-through S/PDIF
>> >> No accelerated IMDCT transform found
>> >> hwac3: switched to AC3, 384000 bps, 48000 Hz
>> >> AUDIO: 48000 Hz, 2 ch, ac3, 384.0 kbit/25.00% (ratio: 48000->192000)
>> >> Selected audio codec: [hwac3] afm: hwac3 (AC3 through S/PDIF)
>> >> 
>> ========================================================================== 
>>
>> >>
>> >> AO: [macosx] 48000Hz 2ch ac3 (1 bytes per sample)
>> >>
>> >> Any suggestions?
>> >
>> > I don't think hwac3 is supposed to work on OSX, sorry :(
>
>> Is there any way to get spdif passthrough to work in OS X then?
>>
>> It works fine in VLC.

MPlayer is using CoreAudio right? CoreAudio has no support for 
passthrough. I wonder how it is passedthrough in VLC and OS X DVD 
Player. Does anyone know what library VLC is using for audio (passthrough)?

/Marcus