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O Caso

A WebCam MicroSoft “queimou”! Hoje na conferencia Zoom, ela simplesmente não ligou mais! Ainda não consegui fazê-la funcionar de volta!

Alternativamente, como quebra-galho, vou colocar o app DroidCam WireLess Webcam da Dev47Apps no meu celular Android para servir de WebCam.

A solução tem componentes para ser instalado no

• Celular use o Google Apps Play Store para instalar o DroidCam WireLess WebCam no seu celular;
• Desktop, neste caso Linux, siga as instruções da página no Dev47apps,

Para desktops linux na plataforma 32 bits é necessário compilar o aplicativo a partir do fonte disponível no site da Dev47Apps.

~ $ cd /tmp/
/tmp $ wget https://files.dev47apps.net/linux/droidcam_latest.zip
--2020-05-30 14:10:47-- https://files.dev47apps.net/linux/droidcam_latest.zip
Resolvendo files.dev47apps.net (files.dev47apps.net)… 172.67.176.140, 104.28.4.185, 104.28.5.185, …
Conectando-se a files.dev47apps.net (files.dev47apps.net)|172.67.176.140|:443… conectado.
A requisição HTTP foi enviada, aguardando resposta… 200 OK
Tamanho: 954882 (933K) [application/zip]
Salvando em: “droidcam_latest.zip”
droidcam_latest.zip 100%[===================>] 932,50K --.-KB/s em 0,06s
2020-05-30 14:10:47 (14,6 MB/s) - “droidcam_latest.zip” salvo [954882/954882]

/tmp $ echo "99652f49ca644a6301426066c4656827 droidcam_latest.zip" | md5sum -c --
droidcam_latest.zip: SUCESSO

/tmp $ unzip droidcam_latest.zip -d droidcam && cd droidcam
Archive: droidcam_latest.zip
inflating: droidcam/LICENCE
inflating: droidcam/Makefile
inflating: droidcam/README-DKMS.md
inflating: droidcam/README.md
inflating: droidcam/droidcam
inflating: droidcam/droidcam-cli
inflating: droidcam/install
inflating: droidcam/install-dkms
inflating: droidcam/install-sound
inflating: droidcam/install.common
creating: droidcam/src/
inflating: droidcam/uninstall
inflating: droidcam/uninstall-dkms
creating: droidcam/v4l2loopback/
inflating: droidcam/v4l2loopback/v4l2loopback-dc.c
inflating: droidcam/v4l2loopback/Makefile
inflating: droidcam/v4l2loopback/test.c

/tmp/droidcam $ sudo ./install
[sudo] senha para omy:
Webcam parameters: '640' and '480'
Building v4l2loopback-dc.ko
make: Entering directory '/tmp/droidcam/v4l2loopback'
make -C /lib/modules/5.3.0-53-generic/build M=/tmp/droidcam/v4l2loopback modules
make[1]: Entering directory '/usr/src/linux-headers-5.3.0-53-generic'
CC [M] /tmp/droidcam/v4l2loopback/v4l2loopback-dc.o
Building modules, stage 2.
MODPOST 1 modules
CC /tmp/droidcam/v4l2loopback/v4l2loopback-dc.mod.o
LD [M] /tmp/droidcam/v4l2loopback/v4l2loopback-dc.ko
make[1]: Leaving directory '/usr/src/linux-headers-5.3.0-53-generic'
make: Leaving directory '/tmp/droidcam/v4l2loopback'
./install: linha 23: mokutil: comando não encontrado
Adding uninstall script
Moving driver and executable to system folders
cp v4l2loopback/v4l2loopback-dc.ko /lib/modules/5.3.0-53-generic/kernel/drivers/media/video/
cp droidcam /usr/bin/
cp droidcam-cli /usr/bin/
set +x
Registering webcam device
Running depmod
make: Entering directory '/tmp/droidcam/v4l2loopback'
make -C /lib/modules/5.3.0-53-generic/build M=/tmp/droidcam/v4l2loopback clean
make[1]: Entering directory '/usr/src/linux-headers-5.3.0-53-generic'
CLEAN /tmp/droidcam/v4l2loopback/Module.symvers
make[1]: Leaving directory '/usr/src/linux-headers-5.3.0-53-generic'
make: Leaving directory '/tmp/droidcam/v4l2loopback'
Done

/tmp/droidcam $ lsmod | grep v4l2loopback_dc
v4l2loopback_dc 24576 0
videodev 208896 8 gspca_main,v4l2_common,videobuf2_v4l2,v4l2loopback_dc,gspca_sonixj,gspca_stv06xx,uvcvideo,videobuf2_common

/tmp/droidcam $ droidcam-cli 192.168.15.20 4747 -add-audio
Device /dev/video0 is 'Camera'
Device /dev/video1 is 'Droidcam'
Opened /dev/video1, fd:3
Client v1.1
Video: /dev/video1
Audio: hw:2,1,0
connecting to 192.168.15.20:4747

#
# para a desinstalação no desktop, use
#
/tmp/droidcam $ sudo /opt/droidcam-uninstall.

Refêrencias

• Aprenda a usar o celular Android como webcam no PC –