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Introduction

This page dedicated to understanding of High level design for Normal Thumbnail in R-Pi Zero.

  • Supported WiFi connection.
  • v4l2 Driver is used to capture YUV data from RPI-0 camera Device.
  • /dev/video0 is the RPI-0 camera device to capture data.
  • Supported Soc level Gstreamer plugins to capture data from camera device.
  • Supported openCV to convert YUV data into JPEG Image.
  • Stored generated JPEG image in local /tmp directory.

Architecture

Design Considerations

  • Gstreamer Soc Implementation for RPI-0 Camera

 

  • Enabled V4l2 driver in part of RPI-0 to capture data from /dev/video0  device.
  • Implemented soc level gstreamer pipeline with v4l2src plugin and appsink plugin.
  • V4l2src plugin is used to capture yuv data from camera through v4l2 driver based on capsfilter( format : NV12 )and transmitted captured yuv data into appsink plugin to transmit yuv data into 8080 port of mongoose server.
  • Registered 8080 port in Mongoose server to listen data.

  • Gstreamer Implementation in Normal Thumbnail

  • Implemented RMS side gstreamer pipeline with souphttpsrc plugin and appsink plugin.
  • Souphttpsrc plugin is getting the encoded data from Mongoose server from 8080 port and transmitted encoded data into appsink plugin to feed the data into RMS.
  • Supported ASCLI interface to configure pull stream property and to start webrtc to transmit data into RRS server through WiFi.
  • Browser getting the data from RRS server and it display the received content.



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