[LAD] simple silence detection tool

[Jeremy Hansen]

On Feb 10, 2013, at 6:09 AM, Adrian Knoth <adi at drcomp.erfurt.thur.de> wrote:

> On Sun, Feb 10, 2013 at 05:36:16AM -0800, Jeremy Hansen wrote:
> 
>> I saw this but I was missing all the jack info. I rebuilt mplayer with
>> jack support. I started jackd per your example:
> 
>> JACK tmpdir identified as [/dev/shm]
>> [JACK] cannot open server
>> Failed to initialize audio driver 'jack'
>> Could not open/initialize audio device -> no sound.
>> 
>> Perhaps I'm missing a step?
> 
> Wild guess: You've started jackd as root or under a different userid
> than mplayer. You must not.
> 

Thanks.  This got further.  

> You can run jack_lsp to verify your jackd is up and running.

I don't see this utility at all.

> 
> If it shows you some ports, mplayer should work, too.
> 
> You may also find the "patchage" tool useful, run it after starting
> jackd, and you can see and manage all your jackd clients.
> 

I don't see patchage either.  Using RPMS from the EPEL.

Here's what I see:

[jeremy at serv ~]$ jackd -d dummy
jackd 0.103.0
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

JACK compiled with System V SHM support.
loading driver ..
creating dummy driver ... dummy_pcm|48000|1024|21333|2|2
unknown source port in attempted connection [SilentJack]
unknown source port in attempted connection [SilentJack]

[jeremy at serv ~]$ mplayer -ao jack,port=SilentJack http://live.skidrowstudios.com:8000/live
MPlayer dev-SVN-r27514-4.1.2 (C) 2000-2008 MPlayer Team
CPU: Intel(R) Xeon(R) CPU           X3220  @ 2.40GHz (Family: 6, Model: 15, Stepping: 11)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Playing http://live.skidrowstudios.com:8000/live.
Resolving live.skidrowstudios.com for AF_INET6...
Couldn't resolve name for AF_INET6: live.skidrowstudios.com
Resolving live.skidrowstudios.com for AF_INET...
Connecting to server live.skidrowstudios.com[54.235.147.151]: 8000...
Name   : Skidrow Studios LIVE!
Genre  : News/Talk/Music
Website: http://www.skidrowstudios.com
Public : yes
Bitrate: 64kbit/s
Cache size set to 320 KBytes
Cache fill:  2.50% (8192 bytes)   
ICY Info: StreamTitle='The Weekly Wrap Up - The Weekly Wrap Up – 02/09/2013 – episode 50/Drew Marks, Rich Slaton';
Cache fill: 10.00% (32768 bytes)   
Audio only file format detected.
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
mpg123: Can't rewind stream by 216 bits!
AUDIO: 22050 Hz, 2 ch, s16le, 64.0 kbit/9.07% (ratio: 8000->88200)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
JACK tmpdir identified as [/dev/shm]
AO: [jack] 48000Hz 2ch floatle (4 bytes per sample)
Video: no video
Starting playback...
A: 246.0 (04:05.9) of -0.0 (unknown)  0.6% 18%                                                                                                                

[jeremy at serv ~]$ silentjack -v -n SilentJack
JACK tmpdir identified as [/dev/shm]
JACK client registered as 'SilentJack'.
Input port isn't connected to anything.
Input port isn't connected to anything.
Input port isn't connected to anything.
Input port isn't connected to anything.
Input port isn't connected to anything.

I tried doing silentjack -c SilentJack, but this didn't work.

[jeremy at serv ~]$ silentjack -c SilentJack
JACK tmpdir identified as [/dev/shm]
JACK client registered as 'silentjack'.
Connecting SilentJack to silentjack:in
connect_jack_port(): failed to jack_connect() ports: -1

Thanks

> 
> 
> HTH
> 
> -- 
> mail: adi at thur.de  	http://adi.thur.de	PGP/GPG: key via keyserver
>