mirror of https://github.com/OpenIPC/wiki.git
164 lines
5.3 KiB
Markdown
164 lines
5.3 KiB
Markdown
# OpenIPC Wiki
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[Table of Content](../README.md)
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Majestic Streamer
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-----------------
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### Preamble
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Majestic is a video streaming application, the heart of our firmware (in
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relation to camera/video surveillance functionality). Majestic is configurable
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via /etc/majestic.yaml file, and has many features/services enabled by default.
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Unneeded options can be switched off for better security and performance. See /etc/majestic.full for configuration options.
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### Control signals
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```
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-HUP restart Majestic (Except Ingenic T21).
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-SIGUSR1 fast reload (Sigmastar only).
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-SIGUSR2 SDK Shutdown (For all platforms).
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```
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### Camera related URLs in firmware
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Majestic supports multiple audio, video and still image formats, and more.
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You can find the full list of available endpoints on [this page](https://openipc.org/majestic-endpoints).
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The long JPEG control parameter did not fit into the example on the site and we publish it here:
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`/image.jpg?width=640&height=360&qfactor=73&color2gray=1`
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### Changing parameters via cli
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At the moment it is possible to change parameters in the configuration file via the CLI utility.
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This allows parameters to be changed with a single line in pseudo-dynamic mode on some platforms
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simply by forcing a re-read of the configuration file.
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```
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cli -s .video0.codec h264 ; cli -s .video0.fps 10 ; killall -1 majestic
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```
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### Auto day/night detection
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The experiments continue...
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### Motion detection
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Motion detect is supported for Hisilion/Goke, Ingenic and Sigmastar.
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When a motion event is detected, `majestic` invokes a predefined script `/usr/sbin/motion.sh` with a parameter specifying the object count:
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```
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/usr/sbin/motion.sh [count]
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```
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Enable motion detection in `majestic` configuration:
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```
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cli -s .motionDetect.enabled true
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cli -s .motionDetect.debug true
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```
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Reboot the camera and restart `majestic` in the foreground:
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```
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killall majestic; sleep 3; majestic
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```
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You should see the script running after motion detection events:
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```
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20:37:02 <SED_IVE_DETCTOR> [ motion] motion_update@155 Motion detected: [1163x0] -> [690x475]
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20:37:02 <SED_IVE_DETCTOR> [ tools] motion_event@615 Execute motion script: /usr/sbin/motion.sh
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```
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### Broadcasts using RTMP
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To instantly launch a YouTube broadcast, run these commands in the console:
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```
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cli -s .video0.codec h264
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cli -s .audio.enabled true
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cli -s .outgoing.enabled true
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cli -s .outgoing.server rtmp://a.rtmp.youtube.com/live2/you-key-here
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reboot
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```
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Examples of other addresses for different services:
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- YouTube
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- rtmp://a.rtmp.youtube.com/live2/---KEY---
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- Telegram
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- rtmps://dc4-1.rtmp.t.me/s/---KEY---
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- RuTube
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- rtmp://upload.rutube.ru/live_push/---KEY---
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- OK and VK
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- rtmp://ovsu.mycdn.me/input/---KEY---
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We ask that you add information about other popular services here, thank you.
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### ROI
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Detection zones of two types:
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`motionDetect.roi: 1854x1304x216x606,1586x1540x482x622`
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`motionDetect.skipIn: 960x540x1920x1080`
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**roi** - region of interest, when we specify one or more regions whose movements we are interested in.
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**skipIn** - on the contrary, if we are interested in movements on the whole screen, except for some areas (for example, there is a tree in the frame, which is swaying in the wind).
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Coordinate format is the same as in osd.privacyMasks: x,y of the top left point, length and width in pixels.
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### How to convert YUV image to a more common image format
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Use `convert` command from ImageMagick software. Run it like this:
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```
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convert -verbose -sampling-factor 4:2:0 -size 1920x1080 -depth 8 image.yuv image.png
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```
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where `1920x1080` is the picture resolution of video0, and `.png` is the target
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image format.
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### How to play audio stream
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Use [ffplay][ffplay] utility from [ffmpeg][ffmpeg] package.
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```
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ffplay -ar 48000 -ac 1 -f s16le http://192.168.1.10/audio.pcm
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ffplay -ar 48000 -ac 1 -f alaw http://192.168.1.10/audio.alaw
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ffplay -ar 48000 -ac 1 -f mulaw http://192.168.1.10/audio.ulaw
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ffplay -ar 8000 -ac 1 -f alaw http://192.168.1.10/audio.g711a
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```
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### How to create an audio file to play on camera's speaker over network
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Using [sox][sox] program convert any source audio file to [PCM][pcm] 8kbps audio:
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```
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sox speech.mp3 -t raw -r 8000 -e signed -b 16 -c 1 test.pcm
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```
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### How to play audio file on camera's speaker over network
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```
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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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```
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[aac]: https://en.wikipedia.org/wiki/Advanced_Audio_Coding
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[alaw]: https://en.wikipedia.org/wiki/A-law_algorithm
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[dng]: https://en.wikipedia.org/wiki/Digital_Negative
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[g711]: https://en.wikipedia.org/wiki/G.711
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[heif]: https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format
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[hls]: https://en.wikipedia.org/wiki/HTTP_Live_Streaming
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[jpeg]: https://en.wikipedia.org/wiki/JPEG
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[mjpeg]: https://en.wikipedia.org/wiki/Motion_JPEG
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[mp3]: https://en.wikipedia.org/wiki/MP3
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[mp4]: https://en.wikipedia.org/wiki/MPEG-4_Part_14
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[opus]: https://en.wikipedia.org/wiki/Opus_(audio_format)
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[pcm]: https://en.wikipedia.org/wiki/Pulse-code_modulation
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[raw]: https://en.wikipedia.org/wiki/Raw_image_format
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[rtsp]: https://en.wikipedia.org/wiki/RTSP
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[ulaw]: https://en.wikipedia.org/wiki/%CE%9C-law_algorithm
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[yuv]: https://en.wikipedia.org/wiki/YUV
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[ffplay]: https://ffmpeg.org/ffplay.html
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[ffmpeg]: https://ffmpeg.org/
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[sox]: https://en.wikipedia.org/wiki/SoX
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