Cam analog + Easycap + Ubuntu + VLC : no capture
Posted: 23 Nov 2022 10:03
I am looking to transfer video from a small camera.
Working environment:
JVC GR-D720E
Easycap (usb key)
Ubuntu 22.04
VLC
On VLC I try to capture the stream by
"Open a capture device".
"Analog TV"
I am stuck for the moment on, it seems, the definition of the video standard, ... But is it really the case ?
lsusb :
v4l2-ctl -n :
v4l2-ctl -I :
Here is the VLC log:
Working environment:
JVC GR-D720E
Easycap (usb key)
Ubuntu 22.04
VLC
On VLC I try to capture the stream by
"Open a capture device".
"Analog TV"
I am stuck for the moment on, it seems, the definition of the video standard, ... But is it really the case ?
lsusb :
Code: Select all
...
Bus 002 Device 002: ID 1c88:0007 Somagic, Inc. SMI Grabber (EasyCAP DC60+ clone) (no firmware) [SMI-2021CBE]
...Code: Select all
ioctl: VIDIOC_ENUMINPUT
Input : 0
Name : loopback
Type : 0x00000002 (Camera)
Audioset : 0x00000000
Tuner : 0x00000000
Standard : 0x0000000000000000 ()
Status : 0x00000000 (ok)
Capabilities: 0x00000000 (not defined)v4l2-ctl -I :
Code: Select all
Video input : 0 (loopback: ok)Here is the VLC log:
Code: Select all
main debug: processing request item: v4l2:///dev/video0, node: Liste de lecture, skip: 0
main debug: rebuilding array of current - root Liste de lecture
main debug: rebuild done - 6 items, index 5
main debug: starting playback of new item
main debug: resyncing on v4l2:///dev/video0
main debug: v4l2:///dev/video0 is at 5
main debug: creating new input thread
main debug: Creating an input for 'v4l2:///dev/video0'
main debug: requesting art for new input thread
main debug: using timeshift granularity of 50 MiB
main debug: using default timeshift path
main debug: `v4l2:///dev/video0' gives access `v4l2' demux `any' path `/dev/video0'
main debug: creating demux: access='v4l2' demux='any' location='/dev/video0' file='/dev/video0'
main debug: looking for access_demux module matching "v4l2": 21 candidates
v4l2 debug: opening device '/dev/video0'
v4l2 debug: device Dummy video device (0x0000) using driver v4l2 loopback (version 5.15.64) on platform:v4l2loopback-000
v4l2 debug: with capabilities 0x05200003 (overall 0x85200003)
v4l2 debug: video input loopback (0) is camera
v4l2 debug: selected input 0
v4l2 debug: no video standard selection
v4l2 debug: no tuning required (analog baseband input)
v4l2 debug: no audio input available
main debug: looking for meta fetcher module matching "any": 1 candidates
v4l2 error: cannot negotiate supported video format
lua debug: Trying Lua scripts in /home/eric/snap/vlc/3078/.local/share/vlc/lua/meta/fetcher
v4l2 debug: opening device '/dev/video0'
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/lib/vlc/lua/meta/fetcher
v4l2 debug: device Dummy video device (0x0000) using driver v4l2 loopback (version 5.15.64) on platform:v4l2loopback-000
v4l2 debug: with capabilities 0x05200003 (overall 0x85200003)
v4l2 error: not a radio tuner device
qt debug: IM: Setting an input
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/share/vlc/lua/meta/fetcher
main debug: no access_demux modules matched
main debug: creating access: v4l2:///dev/video0
main debug: (path: /dev/video0)
main debug: looking for access module matching "v4l2": 29 candidates
main debug: no meta fetcher modules matched
v4l2 debug: opening device '/dev/video0'
main debug: looking for art finder module matching "any": 2 candidates
v4l2 debug: device Dummy video device (0x0000) using driver v4l2 loopback (version 5.15.64) on platform:v4l2loopback-000
v4l2 debug: with capabilities 0x05200003 (overall 0x85200003)
v4l2 debug: video input loopback (0) is camera
v4l2 debug: selected input 0
v4l2 debug: no video standard selection
v4l2 debug: no tuning required (analog baseband input)
v4l2 debug: no audio input available
lua debug: Trying Lua scripts in /home/eric/snap/vlc/3078/.local/share/vlc/lua/meta/art
v4l2 error: cannot get default format: Invalid argument
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/lib/vlc/lua/meta/art
main debug: no access modules matched
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
main debug: dead input
main debug: changing item without a request (current 5/6)
main debug: nothing to play
lua debug: skipping script (unmatched scope) /snap/vlc/3078/usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: skipping script (unmatched scope) /snap/vlc/3078/usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/02_frenchtv.luac
lua debug: skipping script (unmatched scope) /snap/vlc/3078/usr/lib/vlc/lua/meta/art/02_frenchtv.luac
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: skipping script (unmatched scope) /snap/vlc/3078/usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/share/vlc/lua/meta/art
main debug: no art finder modules matched
main debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua scripts in /home/eric/snap/vlc/3078/.local/share/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/lib/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/share/vlc/lua/meta/fetcher
main debug: no meta fetcher modules matched
main debug: looking for art finder module matching "any": 2 candidates
lua debug: Trying Lua scripts in /home/eric/snap/vlc/3078/.local/share/vlc/lua/meta/art
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/lib/vlc/lua/meta/art
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/02_frenchtv.luac
lua debug: Trying Lua playlist script /snap/vlc/3078/usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: Trying Lua scripts in /snap/vlc/3078/usr/share/vlc/lua/meta/art
main debug: no art finder modules matched
qt debug: IM: Deleting the input