Setting res to 1080p doesn't work

[chris-hinds]

In the hkcam start script setting the resolution to 720p allows the camera to start up and work.

However setting to 1080p does not allow the camera to start.

v4l2-ctl --set-fmt-video=width=1280,height=720,pixelformat=YU12 - works

v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=YU12 - does not work

[chris-hinds]

tail of the logs after setting the res to 1080p and restarting the service.

2019-07-06_19:08:41.17767 Past duration 0.600914 too large
2019-07-06_19:08:41.37596 frame=11223 fps= 30 q=-0.0 size=   13818kB time=00:06:14.96 bitrate= 301.9kbits/s dup=0 dPast duration 0.620201 too large
VIDIOC_S_FMT: failed: Device or resource busyme=00:06:15.43 bitrate= 301.8kbits/s dup=0 drop=26 speed=   1x    
Past duration 0.617943 too largeN/A time=00:06:17.09 bitrate=N/A speed=   1x    s dup=0 drop=26 speed=   1x    
2019-07-06_19:08:42.84473 Past duration 0.614845 too large
2019-07-06_19:08:42.86457 frame=11268 fps= 30 q=-0.0 size=   13867kB time=00:06:16.46 bitrate= 301.8kbits/s dup=0 dVIDIOC_S_FMT: failed: Device or resource busy6:17.59 bitrate=N/A speed=   1x    
2019-07-06_19:08:43.37391 frame=11283 fps= 30 q=-0.0 size=   13892kB time=00:06:16.96 bitrate= 301.9kbits/s dup=0 dPast duration 0.600060 too largeN/A time=00:06:18.09 bitrate=N/A speed=   1x    
2019-07-06_19:08:43.80660 Past duration 0.609596 too large
2019-07-06_19:08:43.89379 frame=11299 fps= 30 q=-0.0 size=   13909kB time=00:06:17.50 bitrate= 301.8kbits/s dup=0 dVIDIOC_S_FMT: failed: Device or resource busyme=00:06:18.00 bitrate= 301.8kbits/s dup=0 drop=26 speed=   1x    
Past duration 0.986488 too large11372 fps= 30 q=-1.0 size=N/A time=00:06:19.12 bitrate=N/A speed=   1x    
2019-07-06_19:08:44.83994 Past duration 0.600838 too large
2019-07-06_19:08:44.87154 Past duration 0.691307 too large
2019-07-06_19:08:44.90008 Past duration 0.876320 too large
2019-07-06_19:08:44.90835 frame=11326 fps= 30 q=-0.0 size=   13941kB time=00:06:18.53 bitrate= 301.7kbits/s dup=0 dPast duration 0.967506 too large
Past duration 0.948616 too largeN/A time=00:06:20.15 bitrate=N/A speed=   1x    s dup=0 drop=29 speed=   1x    
2019-07-06_19:08:45.70442 Past duration 0.683907 too large
2019-07-06_19:08:45.74096 Past duration 0.626320 too large
2019-07-06_19:08:45.75066 VIDIOC_S_FMT: failed: Device or resource busy
2019-07-06_19:08:45.80535 Past duration 0.727547 too large
2019-07-06_19:08:45.83684 Past duration 0.806465 too large
2019-07-06_19:08:45.91187 frame=11356 fps= 30 q=-0.0 size=   13981kB time=00:06:19.53 bitrate= 301.8kbits/s dup=0 dPast duration 0.634239 too largeN/A time=00:06:21.15 bitrate=N/A speed=   1x    s dup=0 drop=29 speed=   1x    
2019-07-06_19:08:46.92037 frame=11385 fps= 30 q=-0.0 size=   14013kB time=00:06:20.50 bitrate= 301.7kbits/s dup=0 dVIDIOC_S_FMT: failed: Device or resource busy
Past duration 0.870445 too large11448 fps= 30 q=-1.0 size=N/A time=00:06:21.65 bitrate=N/A speed=   1x    
2019-07-06_19:08:47.06542 Past duration 0.985390 too large
2019-07-06_19:08:47.42748 frame=11401 fps= 30 q=-0.0 size=   14031kB time=00:06:21.06 bitrate= 301.6kbits/s dup=0 dPast duration 0.970116 too largeN/A time=00:06:22.69 bitrate=N/A speed=   1x    s dup=0 drop=30 speed=   1x    
2019-07-06_19:08:48.10170 Past duration 0.851570 too large
2019-07-06_19:08:48.14091 Past duration 0.687035 too large
2019-07-06_19:08:48.17122 VIDIOC_S_FMT: failed: Device or resource busy
2019-07-06_19:08:48.24166 Past duration 0.688255 too large
2019-07-06_19:08:48.26359 Past duration 0.997658 too large
2019-07-06_19:08:48.44576 frame=11431 fps= 30 q=-0.0 size=   14069kB time=00:06:22.06 bitrate= 301.7kbits/s dup=0 dPast duration 0.639305 too large
Past duration 0.616905 too large11494 fps= 30 q=-1.0 size=N/A time=00:06:23.19 bitrate=N/A speed=   1x    
2019-07-06_19:08:48.54260 Past duration 0.615868 too large
2019-07-06_19:08:48.67676 Past duration 0.659142 too large
2019-07-06_19:08:48.70886 Past duration 0.631035 too large
2019-07-06_19:08:48.80450 Past duration 0.653267 too large
2019-07-06_19:08:48.84486 Past duration 0.629616 too large
2019-07-06_19:08:48.87621 Past duration 0.601631 too large
2019-07-06_19:08:48.95425 frame=11446 fps= 30 q=-0.0 size=   14087kB time=00:06:22.56 bitrate= 301.6kbits/s dup=0 dPast duration 0.663506 too largeN/A time=00:06:23.69 bitrate=N/A speed=   1x

[brutella]

Did you try to reboot the RPi?

[AndreaCCIE]

Just to keep this alive, here's my config: v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=YU12 -c video_bitrate=4000000,auto_exposure=0,scene_mode=8,exposure_dynamic_framerate=1,compression_quality=100 exec hkcam --min_video_bitrate=1536 --data_dir=/var/lib/hkcam/data --verbose=true

and here's the error: [video4linux2,v4l2 @ 0x21aee60] ioctl(VIDIOC_STREAMON): Operation not permitted /dev/video0: Operation not permitted video4linux2,v4l2 @ 0x170e020] ioctl(VIDIOC_G_FMT): Invalid argument /dev/video1: Invalid argument

It works correctly just changing the resolution down to 1080x720

Can this be the explanation? https://raspberrypi.stackexchange.com/questions/81589/problems-using-bcm2835-v4l2-module-w-ffmpeg

I already have gpu_mem=128

[RefineryX]

Hi, this is happening to me too. Is it possible to switch to 1920 x 1080?

[edwardhughes]

I've found that with some tweaks it is possible to get to 1920 x 1080. The key that I found was necessary was to set _gpumem=256 in /boot/config.txt along with setting the width and height using v4l2-ctl before calling the hkcam executable. With the hardware offload for encoding even the pi zero has enough memory for a basic OS installation, and htop shows roughly 20% total CPU usage while outputting a stream of 1080p @ 30 fps.

Note that it is the calling Apple device that determines the output resolution. My iPad Pro requests a stream at 720p resolution. I've had to modify stream.go's calling of ffmpeg in order to force the higher resolution of 1080p, but it does work.

I'm planning to submit a pull request that will include additional command line arguments and a change in the call to ffmpeg, but I need to do some more experimentation.

[AndreaCCIE]

Thanks Eduard!

[RefineryX]

Thanks for your work on this @edwardhughes - looking forward to your PR.

I am running the Raspberry Pi Zero. I am been messing around with the settings in the run file to optimise this but not really having any luck. I can't get the frame rate above 5fps. Would you recommend changing anything? Also maybbe changing the pixelformat=YU12?

v4l2-ctl --set-fmt-video=width=1280,height=720,pixelformat=YU12 -c sharpness=30,video_bitrate=30000000,auto_exposure=0,scene_mode=8,exposure_dynamic_framerate=1,compression_quality=100
exec hkcam --min_video_bitrate=1536 --data_dir=/var/lib/hkcam/data --verbose=true

[brutella]

Is this still an issue?