[MPlayer-users] Alsa + 5.1 surround

[Christopher Bergeron]

Does anyone know of a good demo video that has 5.1 audio and some neat 
graphics?  I'm thinking of something you might see at a car audio show 
or something...

Thanks,
CB





stoic at chello.nl wrote:

>[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>Hi all,
>
>I recently installed mplayer version 0.92-3.2.2 successfully. However, I can't 
>get surround51 working with the alsa-plugin. I use the alsa-0.9.7 driver. My 
>soundcard is an intel8x0 based onboard card. I have an Asus P4PE motherboard.
>
>
>I invoke mplayer as follows:
>
>$ mplayer -v -channels 6 -ao alsa9:surround51 <avifile>
>
>Here are the audio sections:
>
>"==========================================================================
>Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
>dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer
>mp3lib: made decode tables with MMX optimization
>mp3lib: using MMX optimized decore!
>MP3lib: init layer2&3 finished, tables done
>
>MPEG 1.0, Layer III, 48000 Hz 96 kbit Joint-Stereo, BPF: 288
>Channels: 2, copyright: No, original: Yes, CRC: No, emphasis: 0
>AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 12000->192000 (96.0 kbit)
>Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
>=========================================================================="
>
>"==========================================================================
>Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/6ch/16bit...
>[libaf] Adding filter dummy 
>[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000001 and bps 
>= 2
>AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int 
>AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
>alsa-init: testing and bugreports are welcome.
>alsa-init: requested format: 48000 Hz, 6 channels, Signed 16-bit 
>(Little-Endian)
>alsa-init: compiled for ALSA-0.9.7
>alsa-init: soundcard set to surround51
>alsa-init: pcm opend in block-mode
>alsa-init: chunksize set to 1024
>alsa-init: current val=5, fragcount=5
>alsa-init: got buffersize=61440
>alsa9: 48000 Hz/6 channels/12 bpf/61440 bytes buffer/Signed 16 bit Little 
>Endian
>AO: [alsa9] 48000Hz 6ch Signed 16-bit (Little-Endian) (2 bps)
>AO: Description: ALSA-0.9.x audio output
>AO: Author: Alex Beregszaszi <alex at fsn.hu>, Joy Winter <joy at pingfm.org>
>AO: Comment: under developement
>Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/6ch/16bit...
>[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000001 and bps 
>= 2
>[libaf] Adding filter channels 
>[channels] Changing number of channels to 6
>[dummy] Was reinitialized, rate=48000Hz, nch = 2, format = 0x00000001 and bps 
>= 2
>Starting playback...
>alsa-space: free space = 61440, status=139748592, prepared --
>[libaf] Reallocating memory in module channels, old len = 0, new len = 61432
>=========================================================================="
>
>_______________________________________________
>RTFM!!!  http://www.MPlayerHQ.hu/DOCS
>Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
>http://mplayerhq.hu/mailman/listinfo/mplayer-users
>
>
>  
>