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1. #No sound using imillet hdmi video capture device how to
2. #No sound using imillet hdmi video capture device 1080p
3. #No sound using imillet hdmi video capture device install

However, the PI (As of me writing this) cannot convert 1080p footage at anything above 8-10fps. Now, we have the video stream /dev/video0 and the audio stream 1,0. If it was listed as "", it would be formatted as 2,0.

In the script, it will be formatted as 1,0. Take note of the "" or what it might be in your setup. The last one looks like what we're after. List the audio devices using the command "cat /proc/asound/devices" : :~ $ cat /proc/asound/devices Take note of /dev/video0 or whatever it may be in your case. We will need to use the "MJPG" stream in this instance. Thats because it defaults to the "YUYV" stream instead of "MJPG" one. You could try to open video0 in VLC or ffplay at this moment but you'll notice that the frame rate is very low. In my Instance video0 lists a bunch of formats whilst video1 doesnt. :~ $ v4l2-ctl -d /dev/video1 -list-formats-ex

Type in v4l2-ctl -d /dev/video0 -list-formats-ex :~ $ v4l2-ctl -d /dev/video0 -list-formats-ex

#No sound using imillet hdmi video capture device how to

Make a quick note of where the device is (in my case /dev/video0) The next step will indicate how to decide between video0 and video1. The last listing is what we're interested in. You should get something similar to this: :~ $ v4l2-ctl -list-devicesīcm2835-codec-decode (platform:bcm2835-codec): Plug in the device, wait a moment and type into the terminal (local or SSH), v4l2-ctl -list-devices.

#No sound using imillet hdmi video capture device install

You can do so with the command sudo apt install ffmpeg v4l-utils. Set up your Pi, making sure it is up to date, and ensuring that ffmpeg and v4l-utils is installed. Identifying capture card and setting resolution: Raspberry Pi OC settings (/boot/config.txt): arm_freq=2000įorce_turbo=1 #Voids Warranty! (uncomment to avoid CPU scaling down to 600Mhz)īoot_delay=1 #helps to avoid sdcard corruption when force_turbo is enabled. The description should look similar to below: For this use case, there isnt much difference between USB 2 and USB 3, the bottleneck is the Raspberry Pi CPU/GPU. Make sure that the description lists UVC and UAC. Typing in "USB Hdmi Capture UVC" should return appropriate results. Look up an HDMI Capture card with UVC (Usb Video Class) and UAC (Usb Audio Class). You'll need the RTMP url and you might need to modify the command depending on how the USB device was detected on your system: v4l2-ctl -set-fmt-video=width=1280,height=720 & ffmpeg -f v4l2 -thread_queue_size 384 -input_format mjpeg -framerate 30 -i /dev/video0 -f alsa -thread_queue_size 4096 -i plughw:1,0 -acodec pcm_s16le -ac 1 -ar 96000 -copytb 1 -use_wallclock_as_timestamps 1 -c:a aac -b:a 128k -ar 44100 -b:v 4M -c:v h264_omx -f flv rtmp:///app/XXXXXXXXXXXXXXXXXXXXXXX If you're in a rush, here's the code to Stream to twitch. HDMI Splitter isnt mandatory, but there is a 10s delay between the local stream and whats being broadcast to twitch, so I split my HDMI signal from my Video Game consoles to my Screen and to the PI Capture card.

These are the settings that worked for me. For best performance your Raspberry Pi needs to be overclocked and have adequate cooling. Streaming using a cheap HDMI capture card and a Raspberry Pi 4 to an RTMP Receiver.Īfter maybe a month of pulling my hair out, I finally got cheap USB HDMI capture cards work well with the Hardware encoder on the Pi and stream it to Twitch.