Convert input gray16le to RGB output stream
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I'm reading a v4l2 format input video with pixel format gray16le from a USB camera connected to my computer. I can display it without problems.
My question is that I want to read that video with ffmpeg (on /dev/video0) and stream it to a websocket. If I read a "normal" rgb video, this is the command that I'm using to accomplish it:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -c:v mpeg1video -f mpegts https://......
When I try to read from the gray16le format camera, I've tried lots of commands but the output is always in grayscale. For example:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt yuyv422 -c:v mpeg1video -f mpegts https://......
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt rgb24 -c:v mpeg1video -f mpegts https://......
Is there an option in ffmpeg to apply a colormap or a LUT to the input video before streaming it?
Thanks!
ubuntu ffmpeg
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
add a comment |
I'm reading a v4l2 format input video with pixel format gray16le from a USB camera connected to my computer. I can display it without problems.
My question is that I want to read that video with ffmpeg (on /dev/video0) and stream it to a websocket. If I read a "normal" rgb video, this is the command that I'm using to accomplish it:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -c:v mpeg1video -f mpegts https://......
When I try to read from the gray16le format camera, I've tried lots of commands but the output is always in grayscale. For example:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt yuyv422 -c:v mpeg1video -f mpegts https://......
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt rgb24 -c:v mpeg1video -f mpegts https://......
Is there an option in ffmpeg to apply a colormap or a LUT to the input video before streaming it?
Thanks!
ubuntu ffmpeg
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
You can convertgrayscaletoRGB. But the gray-scale has single value of brightness. So, when converting toRGBthe single value is repeated 3 times. That's why I don't think so that's possible!
– user9258013
Jan 17 at 5:16
add a comment |
I'm reading a v4l2 format input video with pixel format gray16le from a USB camera connected to my computer. I can display it without problems.
My question is that I want to read that video with ffmpeg (on /dev/video0) and stream it to a websocket. If I read a "normal" rgb video, this is the command that I'm using to accomplish it:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -c:v mpeg1video -f mpegts https://......
When I try to read from the gray16le format camera, I've tried lots of commands but the output is always in grayscale. For example:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt yuyv422 -c:v mpeg1video -f mpegts https://......
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt rgb24 -c:v mpeg1video -f mpegts https://......
Is there an option in ffmpeg to apply a colormap or a LUT to the input video before streaming it?
Thanks!
ubuntu ffmpeg
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
I'm reading a v4l2 format input video with pixel format gray16le from a USB camera connected to my computer. I can display it without problems.
My question is that I want to read that video with ffmpeg (on /dev/video0) and stream it to a websocket. If I read a "normal" rgb video, this is the command that I'm using to accomplish it:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -c:v mpeg1video -f mpegts https://......
When I try to read from the gray16le format camera, I've tried lots of commands but the output is always in grayscale. For example:
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt yuyv422 -c:v mpeg1video -f mpegts https://......
ffmpeg -f v4l2 -i /dev/video0 -framerate 9 -pix_fmt rgb24 -c:v mpeg1video -f mpegts https://......
Is there an option in ffmpeg to apply a colormap or a LUT to the input video before streaming it?
Thanks!
ubuntu ffmpeg
ubuntu ffmpeg
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
asked Nov 22 '18 at 16:33
Albert GarciaAlbert Garcia
62
62
You can convertgrayscaletoRGB. But the gray-scale has single value of brightness. So, when converting toRGBthe single value is repeated 3 times. That's why I don't think so that's possible!
– user9258013
Jan 17 at 5:16
add a comment |
You can convertgrayscaletoRGB. But the gray-scale has single value of brightness. So, when converting toRGBthe single value is repeated 3 times. That's why I don't think so that's possible!
– user9258013
Jan 17 at 5:16
You can convert
grayscale to RGB. But the gray-scale has single value of brightness. So, when converting to RGB the single value is repeated 3 times. That's why I don't think so that's possible!– user9258013
Jan 17 at 5:16
You can convert
grayscale to RGB. But the gray-scale has single value of brightness. So, when converting to RGB the single value is repeated 3 times. That's why I don't think so that's possible!– user9258013
Jan 17 at 5:16
add a comment |
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You can convert
grayscaletoRGB. But the gray-scale has single value of brightness. So, when converting toRGBthe single value is repeated 3 times. That's why I don't think so that's possible!– user9258013
Jan 17 at 5:16