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Introduction
1
Introduction
1.1
System Description
This software reference combines TI wireless technology with OmniVision A/V technology to enable live
streaming of audio and video data over Wi-Fi
the CC3220 to provide a full system solution for audio-video streaming applications.
1.2
System Block Diagram
1.3
System Operation
On boot-up, the CC3220 application initializes the OV788 by loading its firmware and sending commands
to configure the settings of the device. In parallel, the CC3220 begins connecting to an access point. After
the AP connection, the CC3220 then opens an RTSP server on the local network, and waits for RTSP
clients, such as media player applications, to connect and request live streams.
The CC3220 does not buffer video or audio data, but rather sends them out immediately over the network
when received by the OV788. Thus, any latency seen in the video stream is mostly due to buffering on the
part of the streaming client application. In a dedicated use case, this could be reduced by the system
developer by using a custom application instead of using open source.
1.4
Key System Specifications
PARAMETER
Streaming quality
Application protocols
Supported Wi-Fi networks
2
SimpleLink™ CC3220-OV788 Audio/Video Streaming Reference
. This is an integrated solution demonstrating the ability of
®
Figure 1. System Block Diagram
Table 1. Key System Specifications
SPECIFICATION
Video
Audio
RTP/RTSP
802.11 b/g/n
Copyright © 2018, Texas Instruments Incorporated
www.ti.com
DETAILS
720p, 30 fps, 2 Mbps
PCM, 16 bps, 11025 Hz
SWRA599 – March 2018
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