Re: [PLUG] Figure out IP camera

[Chuck Hast]

Ok, dig got a reply from port 53.
VLC says it is unable to open the other two, I am trying to figure out what
else
I can poke at.

On Sun, Dec 3, 2017 at 10:45 AM, Larry Brigman 
wrote:

> Unless this is a multi-thousand dollar device, I suspect that it isn't
> doing anything fancy except maybe encryption but that could prevent them
> from exporting the device.  For port 53, you will need to point dig at it.
>
> For VLC, the it to open a UDP stream at the ports in question.
>
> On Dec 3, 2017 5:41 AM, "Chuck Hast"  wrote:
>
> > Well, I ran wireshark against it, I can see the port 54 arp queries, but
> I
> > see
> > nothing else.
> >
> > I tried netcat but get nothing. Even when I send udp packets to the ports
> > that
> > nmap says are open i.e. 53, 8000 and 49153.
> >
> > I installed an app on the android device that is supposed to capture data
> > but
> > it just sees the arp transactions but nothing with the video, so not sure
> > if they
> > are using the apr just to ID then doing something at the mac level or
> what.
> >
> >
> > On Sun, Dec 3, 2017 at 12:35 AM, Tomas Kuchta <
> > tomas.kuchta.li...@gmail.com>
> > wrote:
> >
> > > Try pointing web browser at those ports, both http and https or mplayer
> > in
> > > various modes, as you would normally do with webcam.
> > >
> > > I personally failed to do anything, but opening a file with VLC in more
> > > instances than I can count. That app is a mystery to me  no
> patience
> > > for GUI, I suppose... LOL
> > >
> > > -T
> > >
> > > On Dec 2, 2017 9:28 PM, "Larry Brigman" 
> wrote:
> > >
> > > > Have you tried VLC against one of of the ports?
> > > > Also port 53 is normally DNS. Maybe it will provide the necessary
> > > > information.
> > > >
> > > > On Dec 2, 2017 9:02 PM, "Chuck Hast"  wrote:
> > > >
> > > > Folks,
> > > > I purchased a borescope, it has a wifi output on it to view the
> > borescope
> > > > video,
> > > > but it works with android and iOS. I am trying to get into it with a
> > web
> > > > browser to
> > > > see if I can pull the video that way.
> > > >
> > > > A scan shows the following UDP ports open
> > > > 53
> > > > 8000
> > > > 49153
> > > >
> > > > I am assuming that they are using one of those ports for the video,
> but
> > > not
> > > > sure how to try to get it to send video to me without the app. I have
> > > tried
> > > > to
> > > > get a packet capture on the android device I have the app installed
> on.
> > > >
> > > > This is a General Tool borescope (same concept at an endoscope) I
> would
> > > > like to be able to view the video on something beside a phone. I have
> > > been
> > > > able to find the paths to video sources on ip cameras but this thing
> > has
> > > me
> > > > stumped.
> > > >
> > > > I tried running wireshark on a laptop and tried to do a capture on
> the
> > > data
> > > > on the Wifi channel but no joy. I remember that I used to be able to
> do
> > > it
> > > > in
> > > > the past, but guess either the encryption or something is not working
> > in
> > > > promiscuous mode. .
> > > >
> > > > --
> > > >
> > > > Chuck Hast  -- KP4DJT --
> > > > I can do all things through Christ which strengtheneth me.
> > > > Ph 4:13 KJV
> > > > Todo lo puedo en Cristo que me fortalece.
> > > > Fil 4:13 RVR1960
> > > > ___
> > > > PLUG mailing list
> > > > PLUG@pdxlinux.org
> > > > http://lists.pdxlinux.org/mailman/listinfo/plug
> > > > ___
> > > > PLUG mailing list
> > > > PLUG@pdxlinux.org
> > > > http://lists.pdxlinux.org/mailman/listinfo/plug
> > > >
> > > ___
> > > PLUG mailing list
> > > PLUG@pdxlinux.org
> > > http://lists.pdxlinux.org/mailman/listinfo/plug
> > >
> >
> >
> >
> > --
> >
> > Chuck Hast  -- KP4DJT --
> > I can do all things through Christ which strengtheneth me.
> > Ph 4:13 KJV
> > Todo lo puedo en Cristo que me fortalece.
> > Fil 4:13 RVR1960
> > ___
> > PLUG mailing list
> > PLUG@pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
> >
> ___
> PLUG mailing list
> PLUG@pdxlinux.org
> http://lists.pdxlinux.org/mailman/listinfo/plug
>



-- 

Chuck Hast  -- KP4DJT --
I can do all things through Christ which strengtheneth me.
Ph 4:13 KJV
Todo lo puedo en Cristo que me fortalece.
Fil 4:13 RVR1960
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Re: [PLUG] Converting audio files

[Tomas Kuchta]

mp3 patents expired earlier this year, if I am not mistaken and it wasn't
in 2016 already.

So at this point, it does not matter other than on technical merit such as
encoder efficiency, perceived quality, etc.

Tomas

On Dec 3, 2017 11:21 AM, "Galen Seitz"  wrote:

> On 12/03/17 10:54, Rich Shepard wrote:
> > On Sun, 3 Dec 2017, Galen Seitz wrote:
> >
> >> Why do you want to convert these files to mp3?
> >
> > Galen,
> >
> >   Because the .wav file (1032704 bytes) is much larger than the .mp3 file
> > (391488 bytes).
> >
> >> What is your goal? Do you really need mp3? If not, you should be able to
> >> convert the files to any one of a number of other formats. sox would
> >> be my
> >> first choice for this.
> >
> >   There are other audio formats supported by audio players on linux yet
> > .mp3
> > seems to be the most common. I've no preference for any one of them.
>
> mp3 is patent encumbered.  That's probably why your sox doesn't include
> it by default.  If the files are for your own use, I suggest converting
> them to ogg vorbis or to ogg opus.  opus is the latest and greatest open
> codec, so your sox might not support it.  It certainly should support
> the vorbis codec.
>
> If you can't make it work, email me a small example wave file.  I should
> be able to make it work.
>
>
> galen
> --
> Galen Seitz
> gal...@seitzassoc.com
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Re: [PLUG] Converting audio files

[King Beowulf]

On 12/03/2017 11:55 AM, Rich Shepard wrote:
> On Sun, 3 Dec 2017, Rich Shepard wrote:
> 
>> Audacity translated the file from .wav to .mp3. I'll look to see if it
>> supports the ogg flavors (I suspect so). If not, ffmpeg will do the job.
> 
>   Yes, audacity-2.1.3 exports to ogg vorbis.
> 
> Rich

mp3 patent expired in May 2017.  Lame and ffmpeg are now part of
Slackware-current (15.0 "real soon now").

ogg vorbis is OK, but for audio fidelity I prefer FLAC, lossless
compression, unless I need to save space.  Every linux distro on the
planet and elsewhere can encode/decode flac.  A few portable players
have been adding it as well.
TIP: iOS 11 added FLAC support.  Most Android devices as well since 3.1.

mp3 vs ogg: Compression rates are about the same.  mp3 provides superior
audio at higher bitrate (>128 kbps) and when using VBR encoding.

opus/speex are good for VOIP applications, not so much for archival needs.

audacity is my "go-to' for odd formats when I can't seem to figure out
what WAV file a stupid cheap device generates.

-Ed

PS:
BTW, you may have noticed this earlier, but ffmpeg has a complex command
line, and your earlier ffmpeg post was in error.

ffmpg  -i   

e.g.
https://trac.ffmpeg.org/wiki/Encode/MP3

The ffmpg an page can be hard to follow.  the wiki has lots of good
explanations and examples.  Note that to support all formats ffmpeg can
handle, appropriate adjustments to the buildscript are needed along with
install a whole heck of a lot of codecs.




signature.asc
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Re: [PLUG] Converting audio files

[Rich Shepard]

On Sun, 3 Dec 2017, Rich Shepard wrote:


Audacity translated the file from .wav to .mp3. I'll look to see if it
supports the ogg flavors (I suspect so). If not, ffmpeg will do the job.


  Yes, audacity-2.1.3 exports to ogg vorbis.

Rich
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Re: [PLUG] Converting audio files

[Rich Shepard]

On Sun, 3 Dec 2017, Galen Seitz wrote:


mp3 is patent encumbered.


Galen,

  Oh. That makes a difference.


If the files are for your own use, I suggest converting them to ogg vorbis
or to ogg opus. opus is the latest and greatest open codec, so your sox
might not support it. It certainly should support the vorbis codec.


  I opt for ogg opus. I'll write a script to convert all .mp3 to .ogg.


If you can't make it work, email me a small example wave file. I should be
able to make it work.


  Audacity translated the file from .wav to .mp3. I'll look to see if it
supports the ogg flavors (I suspect so). If not, ffmpeg will do the job.

Thanks,

Rich
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Re: [PLUG] Converting audio files

[Rich Shepard]

On Sun, 3 Dec 2017, Galen Seitz wrote:


Why do you want to convert these files to mp3?


Galen,

  Because the .wav file (1032704 bytes) is much larger than the .mp3 file
(391488 bytes).


What is your goal? Do you really need mp3? If not, you should be able to
convert the files to any one of a number of other formats. sox would be my
first choice for this.


  There are other audio formats supported by audio players on linux yet .mp3
seems to be the most common. I've no preference for any one of them.


Looks like format 0x0011 is Intel IMA/DVI ADPCM.


  Thank you. My search for that format did not find this.

Regards,

Rich
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Re: [PLUG] Converting audio files

[Galen Seitz]

On 12/03/17 05:58, Rich Shepard wrote:
> On Sat, 2 Dec 2017, King Beowulf wrote:
> 
>> The "wav" files can be in a number of formats, not just straight
>> uncompressed MS Windows audio PCM. You may want to search what format the
>> device uses for storage and/or compression, perhaps amr, awb, 3gp,
>> wavpack, or some other format. codecs exist for these on Slackbuilds.org,
>> or via gst-plugins-{bad,ugly}. Wavpack is included in Slackware.
> 
> Ed,
> 
>   Other than playing downloaded .mp3 files I've not done anything with
> audio
> before now. I've no idea what format this Chinese (brand name Yemenren)
> device uses but lame tells me it's "Unsupported data format: 0x0011".

I haven't been following this thread closely, so I might have missed
this.  Why do you want to convert these files to mp3?  What is your
goal?  Do you really need mp3?  If not, you should be able to convert
the files to any one of a number of other formats.  sox would be my
first choice for this.

Looks like format 0x0011 is Intel IMA/DVI ADPCM.

galen
-- 
Galen Seitz
gal...@seitzassoc.com
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Re: [PLUG] Figure out IP camera

[Larry Brigman]

Unless this is a multi-thousand dollar device, I suspect that it isn't
doing anything fancy except maybe encryption but that could prevent them
from exporting the device.  For port 53, you will need to point dig at it.

For VLC, the it to open a UDP stream at the ports in question.

On Dec 3, 2017 5:41 AM, "Chuck Hast"  wrote:

> Well, I ran wireshark against it, I can see the port 54 arp queries, but I
> see
> nothing else.
>
> I tried netcat but get nothing. Even when I send udp packets to the ports
> that
> nmap says are open i.e. 53, 8000 and 49153.
>
> I installed an app on the android device that is supposed to capture data
> but
> it just sees the arp transactions but nothing with the video, so not sure
> if they
> are using the apr just to ID then doing something at the mac level or what.
>
>
> On Sun, Dec 3, 2017 at 12:35 AM, Tomas Kuchta <
> tomas.kuchta.li...@gmail.com>
> wrote:
>
> > Try pointing web browser at those ports, both http and https or mplayer
> in
> > various modes, as you would normally do with webcam.
> >
> > I personally failed to do anything, but opening a file with VLC in more
> > instances than I can count. That app is a mystery to me  no patience
> > for GUI, I suppose... LOL
> >
> > -T
> >
> > On Dec 2, 2017 9:28 PM, "Larry Brigman"  wrote:
> >
> > > Have you tried VLC against one of of the ports?
> > > Also port 53 is normally DNS. Maybe it will provide the necessary
> > > information.
> > >
> > > On Dec 2, 2017 9:02 PM, "Chuck Hast"  wrote:
> > >
> > > Folks,
> > > I purchased a borescope, it has a wifi output on it to view the
> borescope
> > > video,
> > > but it works with android and iOS. I am trying to get into it with a
> web
> > > browser to
> > > see if I can pull the video that way.
> > >
> > > A scan shows the following UDP ports open
> > > 53
> > > 8000
> > > 49153
> > >
> > > I am assuming that they are using one of those ports for the video, but
> > not
> > > sure how to try to get it to send video to me without the app. I have
> > tried
> > > to
> > > get a packet capture on the android device I have the app installed on.
> > >
> > > This is a General Tool borescope (same concept at an endoscope) I would
> > > like to be able to view the video on something beside a phone. I have
> > been
> > > able to find the paths to video sources on ip cameras but this thing
> has
> > me
> > > stumped.
> > >
> > > I tried running wireshark on a laptop and tried to do a capture on the
> > data
> > > on the Wifi channel but no joy. I remember that I used to be able to do
> > it
> > > in
> > > the past, but guess either the encryption or something is not working
> in
> > > promiscuous mode. .
> > >
> > > --
> > >
> > > Chuck Hast  -- KP4DJT --
> > > I can do all things through Christ which strengtheneth me.
> > > Ph 4:13 KJV
> > > Todo lo puedo en Cristo que me fortalece.
> > > Fil 4:13 RVR1960
> > > ___
> > > PLUG mailing list
> > > PLUG@pdxlinux.org
> > > http://lists.pdxlinux.org/mailman/listinfo/plug
> > > ___
> > > PLUG mailing list
> > > PLUG@pdxlinux.org
> > > http://lists.pdxlinux.org/mailman/listinfo/plug
> > >
> > ___
> > PLUG mailing list
> > PLUG@pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
> >
>
>
>
> --
>
> Chuck Hast  -- KP4DJT --
> I can do all things through Christ which strengtheneth me.
> Ph 4:13 KJV
> Todo lo puedo en Cristo que me fortalece.
> Fil 4:13 RVR1960
> ___
> PLUG mailing list
> PLUG@pdxlinux.org
> http://lists.pdxlinux.org/mailman/listinfo/plug
>
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Re: [PLUG] Converting audio files

[Michael Barnes]

Don't know if it is relevant, and don't have time to look it up right now,
but my feeble memory just recalled using mpeg321 or mpeg123 or something
like that in processing mp3 files.

Might help, might not. Just throwing it out.

Michael


On Dec 3, 2017 06:03, "Rich Shepard"  wrote:

> On Sat, 2 Dec 2017, Tomas Kuchta wrote:
>
> The only way to workaround with your fstab way would be to do all below:
>> a) mount your USB disk to other place than media, so it is not of the way
>> for normal hotplug schemes
>>
>
>   Nothing's mounted on /media other than links to /mnt/.
>
> Thanks,
>
> Rich
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Re: [PLUG] Converting audio files

[Rich Shepard]

On Sat, 2 Dec 2017, Tomas Kuchta wrote:


The only way to workaround with your fstab way would be to do all below:
a) mount your USB disk to other place than media, so it is not of the way
for normal hotplug schemes


  Nothing's mounted on /media other than links to /mnt/.

Thanks,

Rich
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Re: [PLUG] Converting audio files

[Rich Shepard]

On Sat, 2 Dec 2017, King Beowulf wrote:


The "wav" files can be in a number of formats, not just straight
uncompressed MS Windows audio PCM. You may want to search what format the
device uses for storage and/or compression, perhaps amr, awb, 3gp,
wavpack, or some other format. codecs exist for these on Slackbuilds.org,
or via gst-plugins-{bad,ugly}. Wavpack is included in Slackware.


Ed,

  Other than playing downloaded .mp3 files I've not done anything with audio
before now. I've no idea what format this Chinese (brand name Yemenren)
device uses but lame tells me it's "Unsupported data format: 0x0011".


sox-14.4.2 is include with the full Slackware-14.2 installation.


  Huh! I didn't look, just went to SBo where I found soxr which does not
have built-in support for .mp2 or .mp3.


On http://sox.sourceforge.net/Docs/Features mp2/mp3 is supported if you
install twolame and lame from Slackbuilds.org (libmad is already part of
Slackware). Not every lib needs to be compiled into sox to work but can be
supported as a run time dependency. For example, installing ffmpeg allows
sox to handle MP4, AAC, AC3, WAVPACK, AMR-NB, AVI, WMV, Ogg Theora, and
MPEG video files


  Both lame and ffmpeg are installed here; twolame (isn't that the name of a
university in New Orleans?) is not.


you can also use lame or ffmpeg to convert wav to mp3 directly.


  Not as installed here:

$ ffmpeg sr-500.wav roaster.mp3
ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.3.0 (GCC)
  configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib 
--docdir=/usr/doc/ffmpeg-3.2.4/html --mandir=/usr/man --disable-debug 
--enable-shared --disable-static --enable-gpl --enable-version3 
--enable-avresample --arch=i486 --enable-libfontconfig --enable-libfreetype 
--enable-libfribidi --enable-gnutls --enable-libcaca --enable-libcdio 
--enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvorbis 
--enable-libvpx --enable-opengl --enable-libopenjpeg --enable-libpulse 
--enable-libsmbclient --enable-libwavpack --enable-x11grab
  libavutil  55. 34.101 / 55. 34.101
  libavcodec 57. 64.101 / 57. 64.101
  libavformat57. 56.101 / 57. 56.101
  libavdevice57.  1.100 / 57.  1.100
  libavfilter 6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale  4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc54.  1.100 / 54.  1.100
Output #0, wav, to 'sr-500.wav':
Output file #0 does not contain any stream


Also, audacity (slackbuilds.org) may be of help in importing those wav
files as it understands many wav format variants.



xmms (GUI)


  Doesn't like the .wav file from this recorder.


mplayer (CLI, GUI)


  Neither did this.

Many thanks,

Rich
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Re: [PLUG] Converting audio files

[Rich Shepard]

On Sat, 2 Dec 2017, Tomas Kuchta wrote:


lame
ffmpeg


Tomas,

  lame requires another library (faad2) and both are installed. There
apparently is an expected format that is not what the recorder provides. The
script I tried is:

#!/bin/sh
# name of this script: wav2mp3.sh
# wav to mp3

for i in *.wav; do
 if [ -e "$i" ]; then
   file=`basename "$i" .wav`
   lame -h -b 192 "$i" "$file.mp3"
 fi
done

  When I run the script with the .wav file's name I get this output:

Unsupported data format: 0x0011

  Knowing nothing about audio formats I looked on the Web and found sox.
Apparently did not use it properly. Audacity does the trick and ffmpeg is
installed although I've not used it before.


Should both work from command line given input.wav output.mp3 with optional
compression options.


  Not knowing what compression options would be appropriate there were none
on the script's command line and that might well be why it failed.


ffmpeg in particular is the real "Swiss army knife" type of a tool.


  I'll read the man page.

Thanks,

Rich
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Re: [PLUG] Figure out IP camera

[Chuck Hast]

Well, I ran wireshark against it, I can see the port 54 arp queries, but I
see
nothing else.

I tried netcat but get nothing. Even when I send udp packets to the ports
that
nmap says are open i.e. 53, 8000 and 49153.

I installed an app on the android device that is supposed to capture data
but
it just sees the arp transactions but nothing with the video, so not sure
if they
are using the apr just to ID then doing something at the mac level or what.


On Sun, Dec 3, 2017 at 12:35 AM, Tomas Kuchta 
wrote:

> Try pointing web browser at those ports, both http and https or mplayer in
> various modes, as you would normally do with webcam.
>
> I personally failed to do anything, but opening a file with VLC in more
> instances than I can count. That app is a mystery to me  no patience
> for GUI, I suppose... LOL
>
> -T
>
> On Dec 2, 2017 9:28 PM, "Larry Brigman"  wrote:
>
> > Have you tried VLC against one of of the ports?
> > Also port 53 is normally DNS. Maybe it will provide the necessary
> > information.
> >
> > On Dec 2, 2017 9:02 PM, "Chuck Hast"  wrote:
> >
> > Folks,
> > I purchased a borescope, it has a wifi output on it to view the borescope
> > video,
> > but it works with android and iOS. I am trying to get into it with a web
> > browser to
> > see if I can pull the video that way.
> >
> > A scan shows the following UDP ports open
> > 53
> > 8000
> > 49153
> >
> > I am assuming that they are using one of those ports for the video, but
> not
> > sure how to try to get it to send video to me without the app. I have
> tried
> > to
> > get a packet capture on the android device I have the app installed on.
> >
> > This is a General Tool borescope (same concept at an endoscope) I would
> > like to be able to view the video on something beside a phone. I have
> been
> > able to find the paths to video sources on ip cameras but this thing has
> me
> > stumped.
> >
> > I tried running wireshark on a laptop and tried to do a capture on the
> data
> > on the Wifi channel but no joy. I remember that I used to be able to do
> it
> > in
> > the past, but guess either the encryption or something is not working in
> > promiscuous mode. .
> >
> > --
> >
> > Chuck Hast  -- KP4DJT --
> > I can do all things through Christ which strengtheneth me.
> > Ph 4:13 KJV
> > Todo lo puedo en Cristo que me fortalece.
> > Fil 4:13 RVR1960
> > ___
> > PLUG mailing list
> > PLUG@pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
> > ___
> > PLUG mailing list
> > PLUG@pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
> >
> ___
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>



-- 

Chuck Hast  -- KP4DJT --
I can do all things through Christ which strengtheneth me.
Ph 4:13 KJV
Todo lo puedo en Cristo que me fortalece.
Fil 4:13 RVR1960
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