Is there any way ffmpeg send video to /dev/video0 on Ubuntu?
2
I want to send video to webcam device on Ubuntu which is loaded on /dev/video0
I've already seen this command that send desktop to it but is there any way to send video to it?
ffmpeg -f x11grab -r 15 -s 1280x720 -i :0.0+0,0 -vcodec rawvideo
-pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0
I should mention that i specifically want to use ffmpeg command.
ffmpeg
asked Feb 8 '17 at 19:06
dsddddsddd
1313
|
show 3 more comments
2
I want to send video to webcam device on Ubuntu which is loaded on /dev/video0
I've already seen this command that send desktop to it but is there any way to send video to it?
ffmpeg -f x11grab -r 15 -s 1280x720 -i :0.0+0,0 -vcodec rawvideo
-pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0
I should mention that i specifically want to use ffmpeg command.
ffmpeg
asked Feb 8 '17 at 19:06
dsddddsddd
1313
It's my understanding that a webcam is an video input device so I would say no. What webcam do you have that supports receiving video?
– Elder Geek
Feb 8 '17 at 19:12
@ElderGeek there is no webcam.it is virtual one which need to have video on it.
– dsddd
Feb 8 '17 at 19:15
HAve you tried using a pipe?
– Elder Geek
Feb 8 '17 at 19:25
Information is available here
– Elder Geek
Feb 8 '17 at 19:29
1
Possible duplicate of Fake a webcam using a video loopback device? (although not necessarily usingffmpeg).
– llogan
Feb 8 '17 at 19:39
|
show 3 more comments
2
2
2
3
I want to send video to webcam device on Ubuntu which is loaded on /dev/video0
I've already seen this command that send desktop to it but is there any way to send video to it?
ffmpeg -f x11grab -r 15 -s 1280x720 -i :0.0+0,0 -vcodec rawvideo
-pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0
I should mention that i specifically want to use ffmpeg command.
ffmpeg
asked Feb 8 '17 at 19:06
dsddddsddd
1313
I want to send video to webcam device on Ubuntu which is loaded on /dev/video0
I've already seen this command that send desktop to it but is there any way to send video to it?
ffmpeg -f x11grab -r 15 -s 1280x720 -i :0.0+0,0 -vcodec rawvideo
-pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0
I should mention that i specifically want to use ffmpeg command.
ffmpeg
ffmpeg
asked Feb 8 '17 at 19:06
dsddddsddd
1313
asked Feb 8 '17 at 19:06
dsddddsddd
1313
asked Feb 8 '17 at 19:06
dsddddsddd
1313
asked Feb 8 '17 at 19:06
dsddddsddd
1313
asked Feb 8 '17 at 19:06
dsddddsddd
1313
1313
It's my understanding that a webcam is an video input device so I would say no. What webcam do you have that supports receiving video?
– Elder Geek
Feb 8 '17 at 19:12
@ElderGeek there is no webcam.it is virtual one which need to have video on it.
– dsddd
Feb 8 '17 at 19:15
HAve you tried using a pipe?
– Elder Geek
Feb 8 '17 at 19:25
Information is available here
– Elder Geek
Feb 8 '17 at 19:29
1
Possible duplicate of Fake a webcam using a video loopback device? (although not necessarily usingffmpeg).
– llogan
Feb 8 '17 at 19:39
|
show 3 more comments
It's my understanding that a webcam is an video input device so I would say no. What webcam do you have that supports receiving video?
– Elder Geek
Feb 8 '17 at 19:12
@ElderGeek there is no webcam.it is virtual one which need to have video on it.
– dsddd
Feb 8 '17 at 19:15
HAve you tried using a pipe?
– Elder Geek
Feb 8 '17 at 19:25
Information is available here
– Elder Geek
Feb 8 '17 at 19:29
1
Possible duplicate of Fake a webcam using a video loopback device? (although not necessarily usingffmpeg).
– llogan
Feb 8 '17 at 19:39
It's my understanding that a webcam is an video input device so I would say no. What webcam do you have that supports receiving video?
– Elder Geek
Feb 8 '17 at 19:12
It's my understanding that a webcam is an video input device so I would say no. What webcam do you have that supports receiving video?
– Elder Geek
Feb 8 '17 at 19:12
@ElderGeek there is no webcam.it is virtual one which need to have video on it.
– dsddd
Feb 8 '17 at 19:15
@ElderGeek there is no webcam.it is virtual one which need to have video on it.
– dsddd
Feb 8 '17 at 19:15
HAve you tried using a pipe?
– Elder Geek
Feb 8 '17 at 19:25
HAve you tried using a pipe?
– Elder Geek
Feb 8 '17 at 19:25
Information is available here
– Elder Geek
Feb 8 '17 at 19:29
Information is available here
– Elder Geek
Feb 8 '17 at 19:29
1
1
Possible duplicate of Fake a webcam using a video loopback device? (although not necessarily using
ffmpeg).– llogan
Feb 8 '17 at 19:39
Possible duplicate of Fake a webcam using a video loopback device? (although not necessarily using
ffmpeg).– llogan
Feb 8 '17 at 19:39
|
show 3 more comments
1 Answer
1
active
oldest
votes
6
You can do this with v4l2loopback. First you need to install it:
Install v4l2loopback
Easy: Install v4l2loopback from the repository
sudo apt install v4l2loopback-dkms
sudo modprobe v4l2loopback
Hard: Compile v4l2loopback
If it's not in the repository for your Ubuntu version you can compile it:
sudo apt-get install build-essential checkinstall
wget https://github.com/umlaeute/v4l2loopback/archive/master.zip
unzip master.zip
cd v4l2loopback-master
make
sudo checkinstall --pkgname=v4l2loopback --pkgversion="$(date +%Y%m%d%H%M)-git" --default
sudo modprobe v4l2loopback
Uninstalling
If you want to remove the package you compiled:
sudo apt-get remove v4l2loopback
Usage examples
Now run ffmpeg. Example for desktop:
ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :0.0 -f v4l2 /dev/video0
Example for a video input:
ffmpeg -re -i input.mp4 -map 0:v -f v4l2 /dev/video0
You can view it with ffplay:
ffplay /dev/video0
Note that the actual video number may vary depending if an existing device is already using /dev/video0.
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed!Is there something else I should do? some dependencies I missed?
– Sabbin
Jan 29 at 16:43
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@llogan following your example above, I have this commandffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0pastebin.com/9eDK0NTN, if I try the command to run for desktopffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write
– Sabbin
Feb 4 at 7:37
|
show 4 more comments
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6
You can do this with v4l2loopback. First you need to install it:
Install v4l2loopback
Easy: Install v4l2loopback from the repository
sudo apt install v4l2loopback-dkms
sudo modprobe v4l2loopback
Hard: Compile v4l2loopback
If it's not in the repository for your Ubuntu version you can compile it:
sudo apt-get install build-essential checkinstall
wget https://github.com/umlaeute/v4l2loopback/archive/master.zip
unzip master.zip
cd v4l2loopback-master
make
sudo checkinstall --pkgname=v4l2loopback --pkgversion="$(date +%Y%m%d%H%M)-git" --default
sudo modprobe v4l2loopback
Uninstalling
If you want to remove the package you compiled:
sudo apt-get remove v4l2loopback
Usage examples
Now run ffmpeg. Example for desktop:
ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :0.0 -f v4l2 /dev/video0
Example for a video input:
ffmpeg -re -i input.mp4 -map 0:v -f v4l2 /dev/video0
You can view it with ffplay:
ffplay /dev/video0
Note that the actual video number may vary depending if an existing device is already using /dev/video0.
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed!Is there something else I should do? some dependencies I missed?
– Sabbin
Jan 29 at 16:43
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@llogan following your example above, I have this commandffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0pastebin.com/9eDK0NTN, if I try the command to run for desktopffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write
– Sabbin
Feb 4 at 7:37
|
show 4 more comments
6
You can do this with v4l2loopback. First you need to install it:
Install v4l2loopback
Easy: Install v4l2loopback from the repository
sudo apt install v4l2loopback-dkms
sudo modprobe v4l2loopback
Hard: Compile v4l2loopback
If it's not in the repository for your Ubuntu version you can compile it:
sudo apt-get install build-essential checkinstall
wget https://github.com/umlaeute/v4l2loopback/archive/master.zip
unzip master.zip
cd v4l2loopback-master
make
sudo checkinstall --pkgname=v4l2loopback --pkgversion="$(date +%Y%m%d%H%M)-git" --default
sudo modprobe v4l2loopback
Uninstalling
If you want to remove the package you compiled:
sudo apt-get remove v4l2loopback
Usage examples
Now run ffmpeg. Example for desktop:
ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :0.0 -f v4l2 /dev/video0
Example for a video input:
ffmpeg -re -i input.mp4 -map 0:v -f v4l2 /dev/video0
You can view it with ffplay:
ffplay /dev/video0
Note that the actual video number may vary depending if an existing device is already using /dev/video0.
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed!Is there something else I should do? some dependencies I missed?
– Sabbin
Jan 29 at 16:43
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@llogan following your example above, I have this commandffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0pastebin.com/9eDK0NTN, if I try the command to run for desktopffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write
– Sabbin
Feb 4 at 7:37
|
show 4 more comments
6
6
6
You can do this with v4l2loopback. First you need to install it:
Install v4l2loopback
Easy: Install v4l2loopback from the repository
sudo apt install v4l2loopback-dkms
sudo modprobe v4l2loopback
Hard: Compile v4l2loopback
If it's not in the repository for your Ubuntu version you can compile it:
sudo apt-get install build-essential checkinstall
wget https://github.com/umlaeute/v4l2loopback/archive/master.zip
unzip master.zip
cd v4l2loopback-master
make
sudo checkinstall --pkgname=v4l2loopback --pkgversion="$(date +%Y%m%d%H%M)-git" --default
sudo modprobe v4l2loopback
Uninstalling
If you want to remove the package you compiled:
sudo apt-get remove v4l2loopback
Usage examples
Now run ffmpeg. Example for desktop:
ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :0.0 -f v4l2 /dev/video0
Example for a video input:
ffmpeg -re -i input.mp4 -map 0:v -f v4l2 /dev/video0
You can view it with ffplay:
ffplay /dev/video0
Note that the actual video number may vary depending if an existing device is already using /dev/video0.
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
You can do this with v4l2loopback. First you need to install it:
Install v4l2loopback
Easy: Install v4l2loopback from the repository
sudo apt install v4l2loopback-dkms
sudo modprobe v4l2loopback
Hard: Compile v4l2loopback
If it's not in the repository for your Ubuntu version you can compile it:
sudo apt-get install build-essential checkinstall
wget https://github.com/umlaeute/v4l2loopback/archive/master.zip
unzip master.zip
cd v4l2loopback-master
make
sudo checkinstall --pkgname=v4l2loopback --pkgversion="$(date +%Y%m%d%H%M)-git" --default
sudo modprobe v4l2loopback
Uninstalling
If you want to remove the package you compiled:
sudo apt-get remove v4l2loopback
Usage examples
Now run ffmpeg. Example for desktop:
ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :0.0 -f v4l2 /dev/video0
Example for a video input:
ffmpeg -re -i input.mp4 -map 0:v -f v4l2 /dev/video0
You can view it with ffplay:
ffplay /dev/video0
Note that the actual video number may vary depending if an existing device is already using /dev/video0.
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
edited Feb 4 at 19:08
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
answered Feb 8 '17 at 21:05
lloganllogan
5,2401737
5,2401737
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed!Is there something else I should do? some dependencies I missed?
– Sabbin
Jan 29 at 16:43
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@llogan following your example above, I have this commandffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0pastebin.com/9eDK0NTN, if I try the command to run for desktopffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write
– Sabbin
Feb 4 at 7:37
|
show 4 more comments
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed!Is there something else I should do? some dependencies I missed?
– Sabbin
Jan 29 at 16:43
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@llogan following your example above, I have this commandffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0pastebin.com/9eDK0NTN, if I try the command to run for desktopffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write
– Sabbin
Feb 4 at 7:37
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
where can i specify my video ?
– dsddd
Feb 8 '17 at 21:08
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
@dsddd Example updated.
– llogan
Feb 8 '17 at 21:13
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same
[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed! Is there something else I should do? some dependencies I missed?– Sabbin
Jan 29 at 16:43
I installed the package, but I'm stuck with an error on both examples, either the x11grab or the the mp4 video give me the same
[v4l2 @ 0x55ebc0cfdc40] ioctl(VIDIOC_G_FMT): Invalid argument Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:0 -- Conversion failed! Is there something else I should do? some dependencies I missed?– Sabbin
Jan 29 at 16:43
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@Sabbin Please show your command and provide a link to a pastebin of the log.
– llogan
Jan 30 at 22:27
@llogan following your example above, I have this command
ffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0 pastebin.com/9eDK0NTN, if I try the command to run for desktop ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0 I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write– Sabbin
Feb 4 at 7:37
@llogan following your example above, I have this command
ffmpeg -re -i 1.mp4 -map 0:v -f v4l2 /dev/video0 pastebin.com/9eDK0NTN, if I try the command to run for desktop ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :1 -f v4l2 /dev/video0 I get this error pastebin.com/xN6uZJR6, also the folder /dev/video0 has rights for write– Sabbin
Feb 4 at 7:37
|
show 4 more comments
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It's my understanding that a webcam is an video input device so I would say no. What webcam do you have that supports receiving video?
– Elder Geek
Feb 8 '17 at 19:12
@ElderGeek there is no webcam.it is virtual one which need to have video on it.
– dsddd
Feb 8 '17 at 19:15
HAve you tried using a pipe?
– Elder Geek
Feb 8 '17 at 19:25
Information is available here
– Elder Geek
Feb 8 '17 at 19:29
1
Possible duplicate of Fake a webcam using a video loopback device? (although not necessarily using
ffmpeg).– llogan
Feb 8 '17 at 19:39