8 Aug
2017
8 Aug
'17
2:13 a.m.
Hello.
Debian 9 - Stretch.
ffmpeg version 3.2.5-1
I run Jackd from Qjackctl
jackd2 1.9.10+20150825git1ed50c92~dfsg-5
cat /proc/asound/cards
1 [AVB ]: USB-Audio - UltraLite AVB
MOTU UltraLite AVB at usb-0000:00:1a.7-5, high
speed
aplay -l
**** Liste des Périphériques Matériels PLAYBACK ****
carte 1: AVB [UltraLite AVB], périphérique 0: USB Audio [USB Audio]
Sous-périphériques: 0/1
Sous-périphérique #0: subdevice #0
When i try to record my screen i use :
ffmpeg -f x11grab -s 1920x1080 -r 25 -i :0.0 00screencast.mp4
And it's working great.
But, when i try to add the sound.... no success
ffmpeg -f alsa -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
00screencast.mp4
[alsa @ 0x563a80c18b60] cannot open audio device hw:1 (Device or
resource busy)
hw:1: Input/output error
arecord -l
**** Liste des Périphériques Matériels CAPTURE ****
carte 1: AVB [UltraLite AVB], périphérique 0: USB Audio [USB Audio]
Sous-périphériques: 0/1
Sous-périphérique #0: subdevice #0
arecord -L
null
Discard all samples (playback) or generate zero samples (capture)
default
jack
sysdefault:CARD=AVB
UltraLite AVB, USB Audio
Default Audio Device
front:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Front speakers
surround21:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Direct sample mixing device
dsnoop:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Direct sample snooping device
hw:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Direct hardware device without any conversions
plughw:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Hardware device with all software conversions
ffmpeg -f alsa -ac 2 -i plughw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
test.mp4
[alsa @ 0x55be84165b60] cannot open audio device plughw:1 (Device or
resource busy) plughw:1: Input/output error
Any advices, feeback, experiences.... ?
All the best.
8 Aug
8 Aug
2:23 a.m.
Some other progream is using your Ultralite AVB.
Run this command from a terminal to find out what is using it:
cd /tmp && wget http://jackaudio.org/downloads/adevices.sh && bash
./adevices.sh
On Mon, Aug 7, 2017 at 8:12 PM, list <list(a)contacte.xyz> wrote:
Hello.
Debian 9 - Stretch.
ffmpeg version 3.2.5-1
I run Jackd from Qjackctl
jackd2 1.9.10+20150825git1ed50c92~dfsg-5
cat /proc/asound/cards
1 [AVB ]: USB-Audio - UltraLite AVB
MOTU UltraLite AVB at usb-0000:00:1a.7-5, high
speed
aplay -l
**** Liste des Périphériques Matériels PLAYBACK ****
carte 1: AVB [UltraLite AVB], périphérique 0: USB Audio [USB Audio]
Sous-périphériques: 0/1
Sous-périphérique #0: subdevice #0
When i try to record my screen i use :
ffmpeg -f x11grab -s 1920x1080 -r 25 -i :0.0 00screencast.mp4
And it's working great.
But, when i try to add the sound.... no success
ffmpeg -f alsa -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
00screencast.mp4
[alsa @ 0x563a80c18b60] cannot open audio device hw:1 (Device or
resource busy)
hw:1: Input/output error
arecord -l
**** Liste des Périphériques Matériels CAPTURE ****
carte 1: AVB [UltraLite AVB], périphérique 0: USB Audio [USB Audio]
Sous-périphériques: 0/1
Sous-périphérique #0: subdevice #0
arecord -L
null
Discard all samples (playback) or generate zero samples (capture)
default
jack
sysdefault:CARD=AVB
UltraLite AVB, USB Audio
Default Audio Device
front:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Front speakers
surround21:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Direct sample mixing device
dsnoop:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Direct sample snooping device
hw:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Direct hardware device without any conversions
plughw:CARD=AVB,DEV=0
UltraLite AVB, USB Audio
Hardware device with all software conversions
ffmpeg -f alsa -ac 2 -i plughw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
test.mp4
[alsa @ 0x55be84165b60] cannot open audio device plughw:1 (Device or
resource busy) plughw:1: Input/output error
Any advices, feeback, experiences.... ?
All the best.
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
https://lists.linuxaudio.org/listinfo/linux-audio-user
4:28 p.m.
Hello.
Nop.
Only Jackd using it - and qjackctl.
* Playback Device 0 (USB Audio):
used by: jackd (PID 904)
*Recording Device 0 (USB Audio):
used by: jackd (PID 904)
Part II: jack processes
809 ? S 0:00 /bin/sh -c qjackctl
811 ? SLl 0:22 qjackctl
I guess it's more an ffmpeg option trick....
Le Mon, 7 Aug 2017 20:23:12 -0400,
Paul Davis <paul(a)linuxaudiosystems.com> a écrit :
Some other progream is using your Ultralite AVB.
Run this command from a terminal to find out what is using it:
cd /tmp && wget http://jackaudio.org/downloads/adevices.sh && bash
./adevices.sh
>
5:12 p.m.
On Tue, August 8, 2017 9:28 am, list wrote:
Only Jackd using it - and qjackctl.
Your original email had this as the ffmpeg command:
ffmpeg -f alsa -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
00screencast.mp4
You are telling ffmpeg to use the ALSA device, but the ALSA device is in
use by jackd.
If you want to have ffmpeg capture the ALSA device then don't start jackd.
If you want to have ffmpeg use jackd ports then read the ffmpeg man page
for the correct options. The "-f" argument would be jack instead of alsa,
but you have to look at all the details of how to get the ports connected
correctly. I think you need to use qjackctl or jack_connect to connect
the ports after starting ffmpeg.
--
Chris Caudle
5:29 p.m.
Oh yeah, you are right.
But it's a copy/paste of one of the trick i've tried, my mistake
Sure i've already done an :
ffmpeg -f jack -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
nul.mp4
But the same...
Stangely the jack_capture - or audacity - command work great...but i
want to avoid having, 1 sound file, 1 video file and then join them :/
Dont want to bring out the big guns for that.
Still looking....
Thank you anyway for reading.
All the best.
Le Tue, 8 Aug 2017 10:11:41 -0500,
"Chris Caudle" <chris(a)chriscaudle.org> a écrit :
On Tue, August 8, 2017 9:28 am, list wrote:
Only Jackd using it - and qjackctl.
Your original email had this as the ffmpeg command:
ffmpeg -f alsa -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
00screencast.mp4
You are telling ffmpeg to use the ALSA device, but the ALSA device is
in use by jackd.
If you want to have ffmpeg capture the ALSA device then don't start
jackd. If you want to have ffmpeg use jackd ports then read the
ffmpeg man page for the correct options. The "-f" argument would be
jack instead of alsa, but you have to look at all the details of how
to get the ports connected correctly. I think you need to use
qjackctl or jack_connect to connect the ports after starting ffmpeg.
5:41 p.m.
On Tue, August 8, 2017 10:29 am, list wrote:
Sure i've already done an :
ffmpeg -f jack -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
nul.mp4
The input descriptor you used, "-i hw:1" is the format for describing ALSA
device numbers.
I will repeat my earlier admonition to read the ffmpeg man page to see how
you connect jack ports to ffmpeg.
https://www.ffmpeg.org/ffmpeg-devices.html#jack
--
Chris Caudle
5:57 p.m.
Yes.
Thank you very much.
All the best.
Le Tue, 8 Aug 2017 10:40:41 -0500,
"Chris Caudle" <chris(a)chriscaudle.org> a écrit :
On Tue, August 8, 2017 10:29 am, list wrote:
Sure i've already done an :
ffmpeg -f jack -ac 2 -i hw:1 -f x11grab -s 1920x1080 -r 25 -i :0.0
nul.mp4
The input descriptor you used, "-i hw:1" is the format for describing
ALSA device numbers.
I will repeat my earlier admonition to read the ffmpeg man page to
see how you connect jack ports to ffmpeg.
https://www.ffmpeg.org/ffmpeg-devices.html#jack
2462
days inactive
2462
days old
linux-audio-user@lists.linuxaudio.org
6 comments
3 participants
participants (3)
-
Chris Caudle -
list -
Paul Davis