BUILDING.md

picam build instructions

This file explains how to build picam yourself. The whole process takes under an hour on Raspberry Pi 2 or 3.

Steps

Install required packages

$ sudo apt-get install git cmake libcamera-dev libharfbuzz-dev libfontconfig-dev libasound-dev libdrm-dev libegl-dev libepoxy-dev libssl-dev liblzma-dev

(NOTE: $ denotes command prompt. Do not enter $ when entering commands.)

Build and install fdk-aac

Install fdk-aac with the following commands.

$ wget https://downloads.sourceforge.net/project/opencore-amr/fdk-aac/fdk-aac-2.0.3.tar.gz
$ tar zxvf fdk-aac-2.0.3.tar.gz
$ cd fdk-aac-2.0.3
$ ./configure
$ make -j4
(takes 3-4 minutes)
$ sudo make install

Build and install ffmpeg

NOTE: Do not use apt-get for installing ffmpeg.

Download ffmpeg source and configure it:

$ git clone https://git.ffmpeg.org/ffmpeg.git
$ cd ffmpeg
$ ./configure --enable-libfdk-aac
(takes about one minute)

In the output of configure, make sure that there is libfdk_aac in Enabled encoders.

Run the following commands to build and install ffmpeg.

$ make -j4
(takes 25-40 minutes)
$ sudo make install

Run ldconfig in order to resolve dynamic linker problems.

$ sudo ldconfig

Build picam

$ git clone https://github.com/iizukanao/picam.git
$ cd picam
$ mkdir build
$ cd build
$ cmake ..
$ make -j4

You can save some disk space by running strip.

$ strip picam

Check if picam runs without errors.

$ ./picam --help