HKCam only works with FFmpeg command via ssh
PvdGulik opened this issue · comments
Hello brutella,
After flashing a SD card etc. and put it in my Raspberry Pi Zero W, HKCam does not work. If I open the Home app, the led on the camera blinks one time but camera does not respond.
When I connect to the Pi via SSH and give the following command, the camera starts, and is visible in the Home-app.
ffmpeg -f v4l2 -i /dev/video0 -vf format=yuv420p -f v4l2 /dev/video1
or
ffmpeg -f v4l2 -i /dev/video0 -pix_fmt yuv420p -f v4l2 /dev/video1
If I use the command ffmpeg -f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1 found in the HKCam/current logging, this is the output:
ffmpeg version 3.2.14-1~deb9u1+rpt1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516 configuration: --prefix=/usr --extra-version='1~deb9u1+rpt1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-omx-rpi --enable-mmal --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --arch=armhf --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libavresample 3. 1. 0 / 3. 1. 0 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 [video4linux2,v4l2 @ 0x17c1180] Time per frame unknown Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 6373.624168, bitrate: N/A Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 31 tbr, 1000k tbn, 1000k tbc [v4l2 @ 0x17c2f20] V4L2 output device supports only a single raw video stream Could not write header for output file #0 (incorrect codec parameters ?): Invalid argumentStream mapping: Stream #0:0 -> #0:0 (copy) Last message repeated 1 times
If I use the command ffmpeg -f v4l2 -i /dev/video0 -vf format=yuv420p -f v4l2 /dev/video1 I suggested above this is the output:
ffmpeg version 3.2.14-1~deb9u1+rpt1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516 configuration: --prefix=/usr --extra-version='1~deb9u1+rpt1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-omx-rpi --enable-mmal --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --arch=armhf --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libavresample 3. 1. 0 / 3. 1. 0 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 [video4linux2,v4l2 @ 0x1204180] Time per frame unknown Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 6567.309262, bitrate: N/A Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 31 tbr, 1000k tbn, 1000k tbc [swscaler @ 0x12099c0] deprecated pixel format used, make sure you did set range correctly Output #0, v4l2, to '/dev/video1': Metadata: encoder : Lavf57.56.101 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, q=2-31, 200 kb/s, 31 fps, 31 tbn, 31 tbc Metadata: encoder : Lavc57.64.101 rawvideo Stream mapping: Stream #0:0 -> #0:0 (mjpeg (native) -> rawvideo (native)) Press [q] to stop, [?] for help frame= 71 fps= 24 q=-0.0 Lsize=N/A time=00:00:02.29 bitrate=N/A dup=36 drop=0 speed=0.779x
How to solve this, or where in HKCam should I change the FFmpeg command according my command?
Thank you
I got the same issue. Video not showing in the home app from apple.
The commands you wrote doesn't work for me as workaround.
Do you get errors when you give the command ffmpeg -f v4l2 -i /dev/video0 -vf format=yuv420p -f v4l2 /dev/video1
With a other Webcam I don't need to give the specific command with -vf format=yuv420p, but the standard command works ffmpeg -f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1
But at the end, I always have to start the FFmpeg-command to get it working. Don't no why?
No, didn't get any errors. I don't know if this is issue on my side, i already tried different homekit camera solutions. I always get the issue where the camera can't get a connection.
I found a better solution: use in front of FFmpeg the following LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libv4l/v4l1compat.so
So resulting in LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libv4l/v4l1compat.so ffmpeg -f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1
Now only, how do I tell HKCAM to start with this?
I’m sure there must be something wrong with the ffmpeg command which HKCam generates:
When I start the command as I mentioned before, ffmpeg -f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1 , I don’t get errors.
When HKCam is running and I open in the Homekit-app the camera, I get these logging errors.
But when HKCam is running and I give the command, ffmpeg -f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1, the streaming starts in the Homekit App.
So I’m searching where the command is build. What I see in the logging is: /usr/bin/ffmpeg [ffmpeg -f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1]
I think it should be: /usr/bin/ffmpeg [-f v4l2 -i /dev/video0 -codec:v copy -f v4l2 /dev/video1], so without the second ffmeg
What do you think?
Solved, I'll publish a install instruction for Buster