[slim] Re: Problem with AlienBBC

[adhawkins]

In article <001b01c574e9$3d7d21e0$0100000a@Mesh>,
Triode<triode1 (AT) btinternet (DOT) com> wrote:
> Andy,
>
> Should probably take this to the 3rd part plugins list. However please
> try the following - set volume = 0, and post on the 3rd party plugin list
> what happens...
>
> rtsp wav * *
> [mplayer] -really-quiet -vo null -cache 128 -af volume=0,resample=44100:0:1 -ao pcm:nowaveheader:file=#PIPE# $FILE$
> rtsp mp3 * *
> [mplayer] -really-quiet -vo null -cache 128 -af volume=0,resample=44100:0:1 -ao pcm:file=#PIPE# $FILE$ | [lame] --silent -q
> $QUALITY$ -b $BITRATE$ - -
> rtsp flc * *
> [mplayer] -really-quiet -vo null -cache 128 -af volume=0,resample=44100:0:1 -ao pcm:file=#PIPE# $FILE$ |
> [flac] -cs --totally-silent --compression-level-

OK, I've done this, and get much the same results. I get a 'connecting'
message for a while, and then nothing. I've tried the command line from the
log file directly at the command line with mplayer, and I get the following:

gently:~# mplayer -vo null -cache 128 -af resample=44100:0:1 -ao
pcm:file=/tmp/audio.wav
rtsp://rmlivev8.bbc.net.uk/farm/*/ev7/live24/radio1/live/r1_dsat_g2.ra
MPlayer 1.0pre7-3.3.5 (C) 2000-2005 MPlayer Team
CPU: Intel Pentium 4/Xeon/Celeron Foster (Family: 8, Stepping: 9)
Detected cache-line size is 64 bytes
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with
--disable-runtime-cpudetection.


/usr/share/fonts/truetype/ttf-bitstream-vera/VeraMoBd.ttf doesn't look like
a font description, ignoring.
Cannot load font: /usr/share/fonts/truetype/ttf-bitstream-vera/VeraMoBd.ttf
Failed to open /dev/rtc: No such file or directory (it should be readable by
the user.)
Playing
rtsp://rmlivev8.bbc.net.uk/farm/*/ev7/live24/radio1/live/r1_dsat_g2.ra.
Resolving rmlivev8.bbc.net.uk for AF_INET...
Connecting to server rmlivev8.bbc.net.uk[212.58.224.161]:554 ...
Cache size set to 128 KBytes
Connected to server: rmlivev8.bbc.net.uk
Cache fill: 18.75% (24576 bytes) REAL file format detected.
Stream description: Audio Stream
Stream mimetype: audio/x-pn-multirate-realaudio-live
demux_real: invalid chunksize! (0)
Clip info:
name: BBC Radio 1
author: BBC
copyright: (C) British Broadcasting Corporation 2004
================================================== ========================
Opening audio decoder: [realaud] RealAudio decoder
opening shared obj '/usr/lib/codecs/cook.so'
Audio codec: [23] 44 Kbps Stereo Music High Response - RealAudio
Audio bitrate: 44.100 kbit/s (5513 bps)
AUDIO: 44100 Hz, 2 ch, s16le, 44.1 kbit/3.13% (ratio: 5513->176400)
Selected audio codec: [ra10cook] afm:realaud (RealPlayer 10 COOK audio)
================================================== ========================
Checking audio filter chain for 44100Hz/2ch/s16le -> 44100Hz/2ch/s16le...


MPlayer interrupted by signal 11 in module: af_preinit
- MPlayer crashed by bad usage of CPU/FPU/RAM.
Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and
disassembly. Details in
DOCS/HTML/en/bugreports_what.html#bugreports_crash.
- MPlayer crashed. This shouldn't happen.
It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
gcc version. If you think it's MPlayer's fault, please read
DOCS/HTML/en/bugreports.html and follow the instructions there. We can't
and
won't help unless you provide this information when reporting a possible
bug.

Any ideas?

Thanks

Andy

[Triode]

Andy,

For the command line test please include the volume statement in it as well "-af volume=0,resample=44100:0:1"

For the server problem - could you post the output of --d_source --d_remotestream when you try to play something

[adhawkins]

Ok, adding the volume on to the command line means that mplayer starts to play the stream. I've now added this to the convert.conf file.

Attached is the log with the two debugging arguments specified:

Andy

[Triode]

Andy,

Not sure "Assuming raw pcm input file" is right as the output from lame.

Could you retry on a client which does not have bitrate limiting set? (so that lame is not called)

[adhawkins]

Log attached. This was to my SB2 with no bit rate limiting

Andy

[Triode]

Can't see any obvious errors. Could you edit out the -really-quiet in the mplayer command and the --totally-slient in the flac command and try again?

[adhawkins]

Ok, I think this is the relevant section. Any ideas?

Thanks

Andy

[Triode]

This doesn't seem to show anything wrong - I suspect you may have edited out a but too much...

I would also suggest installing the latest 6.0.x nightly as it suppresses some of the error messages when --d_source is enabled which will help debug this (hopefully)

[adhawkins]

Ok, the full log is available here (it's about 4M in size):

http://www.gently.org.uk/slimserver.txt

Andy

[Triode]

Andy,

"[AO PCM] Failed to open /dev/fd/3 for writing!
Could not open/initialize audio device -> no sound."

This leads me to think your unix does not have /dev/fd/3 support on by default.

Some other users on the list have expienced this, I am not sure what the answer was though. Some suggested ensuring you are running bash [edit mplayer.sh to start #!/bin/bash, others was installing some additional package [linux distrib specific?]

A test of whether it is working is:
echo "hello" > temp.txt
cp temp.txt /dev/fd/3 3>&1 1>&2

Do you see "hello" on stdout?

[adhawkins]

A test of whether it is working is:
echo "hello" > temp.txt
cp temp.txt /dev/fd/3 3>&1 1>&2

Do you see "hello" on stdout?

Yes

Next?

Andy

[Triode]

Did you try changing the start of mplayer.sh to #!/bin/bash
I think someone claimed this helped this sort of problem.

Anyway if you get "[AO PCM] Failed to open /dev/fd/3 for writing!
Could not open/initialize audio device -> no sound." you have no hope of getting output, so you need to tinker until this goes away - unfortunately this appears to be system specific and I've not got any more suggestions....

[adhawkins]

Did you try changing the start of mplayer.sh to #!/bin/bash
I think someone claimed this helped this sort of problem.

By jove, I think that's worked!

Thanks all.

Andy

[Triode]

OK so that's the second recorded case of this.

To check what is going on - is /bin/sh a link to bash? If so there appears to be something in bash which switches off /dev/df/3 support when involved as sh...

[adhawkins]

[slim] Re: Problem with AlienBBC

Hi,

In article <Triode.1r3azz (AT) no-mx (DOT) forums.slimdevices.com>,
Triode<Triode.1r3azz (AT) no-mx (DOT) forums.slimdevices.com> wrote:
> To check what is going on - is /bin/sh a link to bash?

Yes.

> If so there appears to be something in bash which switches off /dev/df/3
> support when involved as sh...

Doesn't appear so. Just created a file called 'testing' containing:

echo "hello" > temp.txt
cp temp.txt /dev/fd/3 3>&1 1>&2

And done the following:

andy@gently:~$ bash testing
hello
andy@gently:~$ sh testing
hello


Odd...

Andy

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