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Majestic Streamer

Preamble

Majestic is a video streaming application, the heart of our firmware (in relation to camera/video surveillance functionality). Majestic is configurable via /etc/majestic.yaml file, and has many features/services enabled by default. Unneeded options can be switched off for better security and performance. See /etc/majestic.full for configuration options.

Majestic supports multiple audio, video and still image formats, and more. You can find the full list of available endpoints on this page.

The long JPEG control parameter did not fit into the example on the site and we publish it here:

/image.jpg?width=640&height=360&qfactor=73&color2gray=1

Changing parameters via cli

At the moment it is possible to change parameters in the configuration file via the CLI utility.

This allows parameters to be changed with a single line in pseudo-dynamic mode on some platforms simply by forcing a re-read of the configuration file.

cli -s .video0.codec h264 ; cli -s .video0.fps 10 ; killall -1 majestic

Auto day/night detection

The experiments continue...

Motion detection

Motion detect is supported for Hisilion/Goke, Ingenic and Sigmastar, the script file needs to be located at: /usr/share/openipc/motion_detect.sh

The following will be executed on a motion event:

/usr/share/openipc/motion_detect.sh [object count] [x coordinate] [y coordinate] [region width] [region height]

Example script:

#!/bin/sh
echo [$0] [$1] [$2] [$3] [$4] [$5]

Final result:

20:37:02  <SED_IVE_DETCTOR> [  motion] motion_update@155             Motion detected: [1163x0] -> [690x475]
20:37:02  <SED_IVE_DETCTOR> [   tools] motion_event@615              Execute motion script: /usr/share/openipc/motion_detect.sh
[/usr/share/openipc/motion_detect.sh] [1] [1163] [0] [690] [475]

More info:

The experiments continue...

Broadcasts using RTMP

To instantly launch a YouTube broadcast, run these commands in the console:

cli -s .video0.codec h264
cli -s .audio.enabled true
cli -s .outgoing.enabled true
cli -s .outgoing.server rtmp://upload.rutube.ru/live_push/you-key-here
reboot

Examples of other addresses for different services:

YouTube
- rtmp://a.rtmp.youtube.com/live2/---KEY---
Telegram
- rtmps://dc4-1.rtmp.t.me/s/---KEY---
RuTube
- rtmp://upload.rutube.ru/live_push/---KEY---
OK and VK
- rtmp://ovsu.mycdn.me/input/---KEY---

We ask that you add information about other popular services here, thank you.

How to convert YUV image to a more common image format

Use convert command from ImageMagick software. Run it like this:

convert -verbose -sampling-factor 4:2:0 -size 1920x1080 -depth 8 image.yuv image.png

where 1920x1080 is the picture resolution of video0, and .png is the target image format.

How to play audio stream

Use ffplay utility from ffmpeg package.

ffplay -ar 48000 -ac 1 -f s16le http://192.168.1.10/audio.pcm
ffplay -ar 48000 -ac 1 -f alaw http://192.168.1.10/audio.alaw
ffplay -ar 48000 -ac 1 -f mulaw http://192.168.1.10/audio.ulaw
ffplay -ar 8000 -ac 1 -f alaw http://192.168.1.10/audio.g711a

How to create an audio file to play on camera's speaker over network

Using sox program convert any source audio file to PCM 8kbps audio:

sox speech.mp3 -t raw -r 8000 -e signed -b 16 -c 1 test.pcm

How to play audio file on camera's speaker over network

cat test.pcm | curl -v -u user:password -H "Content-Type: application/json" -X POST --data-binary @- http://192.168.1.10/play_audio

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