Re: [LAU] FFMPEG - Recording sound from jack

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@email-addr-hidden> 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@email-addr-hidden
> https://lists.linuxaudio.org/listinfo/linux-audio-user
>

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Received on Tue Aug 8 04:15:01 2017