文件列表:

LICENSE (11357, 2021-11-09)
src/ (0, 2021-11-09)
src/center.html (2192, 2021-11-09)
src/focus.html (7232, 2021-11-09)
src/grid.html (2372, 2021-11-09)
src/index.html (1151, 2021-11-09)
src/jmuxer.min.js (31354, 2021-11-09)
src/server.py (4357, 2021-11-09)

# Pi H264 To Browser *Pi H264 To Browser* is a simple Python application designed to stream hardware encoded h.264 from a Raspberry Pi equiped with a V1, V2, or HQ camera module, directly to a browser. # Capabillities - Stream to multiple clients simultaneously (usually only limited by your network connection) - Support any resolution and framerate the camera module can capture and the gpu can encode - Able to do both of the preceding from any Raspberry Pi # Features 1. A screen that displays an unaltered video stream that allows you to switch to full screen mode. 2. A screen that provides a focus peaking overlay to help focus the camera. [](http://www.youtube.com/watch?v=BtihM-EcTzU "focus peaking demo ") 3. A screen that provides a center reticle overlay to aide in centering a subject in the frame. 4. A screen that provides a standard 9 grid overlay to aide in more creative framing. # Viewing When server.py is running the feed can be vied from any broswer via the following urls. **_rpi_address_** is the ip address or hostname of your Raspberry Pi, and **_serverPort_** is the port you set in the configuration section. 1. The primary viewing screen ``` http://:/ ``` 2. The focus peaking screen ``` http://:/focus/ ``` 3. The center reticle screen ``` http://:/center/ ``` 4. The 9 grid screen ``` http://:/grid/ ``` # Installation 1. [Ensure the camera module is properly connected to the Raspberry Pi](https://projects.raspberrypi.org/en/projects/getting-started-with-picamera/2) 2. [Ensure the operating system is up to date, and the camera interface is enabled](https://www.raspberrypi.org/documentation/configuration/camera.md) 3. Install the [Picamera](https://picamera.readthedocs.io/en/release-1.13/) Python module ``` sudo apt-get install python3-picamera ``` 4. Install pip to handle loading Python pckages not avaiable in the Raspberry Pi OS archives ``` sudo apt install python3-pip ``` 5. Install the [Tornado framework](https://www.tornadoweb.org/en/stable/) ``` sudo pip3 install tornado ``` 6. Donwload *Pi H264 To Browser*, and copy the src directoy to your Raspberry Pi # configuration open server.py and edit the following section of code as needed. - The webserver will run on the port you set **_serverPort_** to. - Refer to the Picamera documentation for details on how to configure it. A lage number of options exist (far more than listed below), that allow for 100% customization of camera. 1. [sensor modes, resolutions and framerates](https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes) 2. [general camera settings](https://picamera.readthedocs.io/en/release-1.13/api_camera.html#picamera.PiCamera.ISO) * video_denoise * iso * shutter_speed * exposure_mode * awb_mode * awb_gains * exposure_compensation * brightness * sharpness * contrast * saturation * hflip * vflip * meter_mode 3. [recordingOptions](https://picamera.readthedocs.io/en/release-1.13/api_camera.html#picamera.PiCamera.start_recording) * **_inline_headers and sps_timing should always be set to true._** 4. Focus peaking screen * focusPeakingColor - What color a pixel that is in focus should be. This is a webgl color format string, and must be 4 comma seperated floating point numbers between 0.0 and 1.0! From left to right the numbers represent the red, green, blue, and alpha channels. * focusPeakingthreshold - Determines at what point a pixel is considred to be in focus. A pixel with a value below the threshold is considered out of focus, or an aberration. A pixel above the threshold is considered in focus. This is a floating point number that has a theoretical maximum range of 0.0 to 1.0, however values between 0.02 and 0.11 generally yield the best results. 5. Center screen * centerColor - What color the centering reticle should be. This is a css color format string, and must be 4 comma seperated values. The first three are integers ranging from 0 to 255, and the forth is a float ranging from 0.0 to 1.0. From left to right the numbers represent the red, green, blue, and alpha channels. * centerThickness - and integer value that sets the thickness(in pixels) of the lines that make up the reticle. 5. 9 grid screen * gridColor - What color the grid should be. This is a css color format string, and must be 4 comma seperated values. The first three are integers ranging from 0 to 255, and the forth is a float ranging from 0.0 to 1.0. From left to right the numbers represent the red, green, blue, and alpha channels. * gridThickness - and integer value that sets the thickness(in pixels) of the lines that make up the grid. ```python # start configuration serverPort = 8000 camera = PiCamera(sensor_mode=2, resolution='1920x1080', framerate=30) camera.video_denoise = False recordingOptions = { 'format' : 'h264', 'quality' : 20, 'profile' : 'high', 'level' : '4.2', 'intra_period' : 15, 'intra_refresh' : 'both', 'inline_headers' : True, 'sps_timing' : True } focusPeakingColor = '1.0, 0.0, 0.0, 1.0' focusPeakingthreshold = 0.055 centerColor = '255, 0, 0, 1.0' centerThickness = 2 gridColor = '255, 0, 0, 1.0' gridThickness = 2 # end configuration ``` # Running - from the terminal ``` python3 server.py ``` - [at startup](https://www.dexterindustries.com/howto/run-a-program-on-your-raspberry-pi-at-startup/) * An rc.local example! ``` sudo python3 /home/pi/code/streaming/server.py > /home/pi/code/streaming/log.txt 2>&1 & ``` # How It Works - [Picamera](https://picamera.readthedocs.io/en/release-1.13/) handles all the video related tasks. - [Tornado](https://www.tornadoweb.org/en/stable/) handles serving out the html and js assets via http, and the h264 stream via websockets. - [jMuxer](https://github.com/samirkumardas/jmuxer) handles muxing the h264 stream (in browser) and playing it via Media Source extensions. # Licencing - [Picamera](https://github.com/waveform80/picamera/blob/master/LICENSE.txt) - [Tornado](https://github.com/tornadoweb/tornado/blob/master/LICENSE) - [jMuxer](https://github.com/samirkumardas/jmuxer/blob/master/LICENSE)

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