Logitech C920 webcam with H264 encoding, unable to set croppingCapturing h.264 stream from camera with GstreamerA misunderstanding of V4L2Gstreamer- failed to enumerate video formats and Inappropriate ioctl for device ErrorList available capture formatsGstreamer + h264 stream from c920 + v4l2loopback not workingUsing ffmpeg on Windows, what is the command to capture hardware encoded H264 stream from Logitech c930eCapture 1920x1080 video with OpenCV over Raspberry PIuvch264src stalls when capturing from Logitech C920 in darknessUse avconv to stream from C920 with no delayOpenCv capture with V4L
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Logitech C920 webcam with H264 encoding, unable to set cropping
Capturing h.264 stream from camera with GstreamerA misunderstanding of V4L2Gstreamer- failed to enumerate video formats and Inappropriate ioctl for device ErrorList available capture formatsGstreamer + h264 stream from c920 + v4l2loopback not workingUsing ffmpeg on Windows, what is the command to capture hardware encoded H264 stream from Logitech c930eCapture 1920x1080 video with OpenCV over Raspberry PIuvch264src stalls when capturing from Logitech C920 in darknessUse avconv to stream from C920 with no delayOpenCv capture with V4L
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I try to get h264 stream direct from the Logitech c920 camera, it's works.
but I would like to set cropping to cut some useless sides, getting invalid argument.
v4l2-ctl --set-crop=top=16,left=16,width=80,height=80
VIDIOC_G_CROP: failed: Invalid argument
root@raspberrypi:/home/pi# v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : HD Pro Webcam C920
Bus info : usb-3f980000.usb-1.5
Driver version: 4.19.29
Capabilities : 0x84A00001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 1280
Size Image : 614400
Colorspace : sRGB
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Default
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
[deleted]
raspbian h.264 video-capture v4l2 webcam-capture
add a comment |
I try to get h264 stream direct from the Logitech c920 camera, it's works.
but I would like to set cropping to cut some useless sides, getting invalid argument.
v4l2-ctl --set-crop=top=16,left=16,width=80,height=80
VIDIOC_G_CROP: failed: Invalid argument
root@raspberrypi:/home/pi# v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : HD Pro Webcam C920
Bus info : usb-3f980000.usb-1.5
Driver version: 4.19.29
Capabilities : 0x84A00001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 1280
Size Image : 614400
Colorspace : sRGB
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Default
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
[deleted]
raspbian h.264 video-capture v4l2 webcam-capture
add a comment |
I try to get h264 stream direct from the Logitech c920 camera, it's works.
but I would like to set cropping to cut some useless sides, getting invalid argument.
v4l2-ctl --set-crop=top=16,left=16,width=80,height=80
VIDIOC_G_CROP: failed: Invalid argument
root@raspberrypi:/home/pi# v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : HD Pro Webcam C920
Bus info : usb-3f980000.usb-1.5
Driver version: 4.19.29
Capabilities : 0x84A00001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 1280
Size Image : 614400
Colorspace : sRGB
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Default
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
[deleted]
raspbian h.264 video-capture v4l2 webcam-capture
I try to get h264 stream direct from the Logitech c920 camera, it's works.
but I would like to set cropping to cut some useless sides, getting invalid argument.
v4l2-ctl --set-crop=top=16,left=16,width=80,height=80
VIDIOC_G_CROP: failed: Invalid argument
root@raspberrypi:/home/pi# v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : HD Pro Webcam C920
Bus info : usb-3f980000.usb-1.5
Driver version: 4.19.29
Capabilities : 0x84A00001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 1280
Size Image : 614400
Colorspace : sRGB
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization : Default
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
[deleted]
raspbian h.264 video-capture v4l2 webcam-capture
raspbian h.264 video-capture v4l2 webcam-capture
asked Mar 23 at 11:14
user11246837
add a comment |
add a comment |
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