Raspberry Pi is equipped with H.264 HW Codec that supports up to Full HD either 30fps. We will show you how to run a VideoCoin Worker on Raspberry Pi that used HW Codec
Download Ubuntu 18.04 armhf from the following site and flash the microsd card:
https://wiki.ubuntu.com/ARM/RaspberryPi Install the following repos as specified in "Optional PPAs" section sudo add-apt-repository ppa:ubuntu-raspi2/ppa
sudo apt-get update
Install the following repos as specified in "VideoCore" section
sudo apt-get install libraspberrypi-bin libraspberrypi-devsudo ln -s /usr /opt/vc
Compile ffmpeg with H264 Hardware encoder
sudo apt-get updatesudo apt-get install build-essentialsudo apt-get install libomxil-bellagio-dev -ygit clone https://github.com/FFmpeg/FFmpeg.gitcd FFmpegsudo ./configure --enable-gpl --enable-omx --enable-omx-rpi --enable-nonfreesudo make -j4sudo make install
Test h264 HW Encoder is active
ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30 -c:v h264_omx test.mp4
You can learn more about how to do this here
Use the "Worker" tab in VideoCoin Network Console and create the worker. The "Client Id" assigned to the worker needs to be used while running the worker as described in the following section.
Set the environment variables and start the transcode worker as shown below.
./transcoder_arm mine -k <keyfile>
Environment variables and command-line options
Ethereum key file. Ethereum key file can be created using the ethkey tool as detailed in the following link..
Worker ID obtained from the worker menu of VideoCoin Network Console
Password for the ethereum key file
Obtain the dispatch address from VideCoin support Example: d.dev.videocoin.network:5008
Raspberry Pi supports encoding up to 1080p @30fps. Transcoding live streams at 1080p resolution and 30fps may introduce some discontinuities as there is not much head room to support jitter in the live stream. It is recommended to use only for VOD applications when transcoding at 1080p,30fps.