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.
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