Multiple video coding&decoding

2015-09-25 15:13


1. Introduction

What we need to prepare for this show is: a Firefly-RK3288, two USB cameras (Support MJPEG), and 5.5-inch display module or LCD monitor.

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 Firefly RK3399 needs: FireflyRK3399 + MIPI Cameras x 2 + LCD Display. 


1.Firefly-RK3399配件准备.jpg

Firstly , we connect two USB cameras to the Firefly-RK3288 development board.

2.Firefly-RK3288连接图.jpg

2.Firefly-RK3399连接图.jpg

Into the application list, open the MultiCodecs.

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After opening the MultiCodecs, the screen will appear seven video images, while the two USB camera is at the same time collection.

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2. MultiCodecs Introduction

In MultiCodecs video screen,the Preview 1 on the upper left corner is the preview of the first USB camera, It gets MJPEG data from the USB camera, then , converts MJPEG data into YUV data and previews display. and the Preview 2 is the preview of the YUV data converted from another USB camera. On the lower right corner of the screen , Encode/Decode1 is the H.264 format video coding from YUV data of Preview 1. Encode/Decode 2 is the H.264 format video coded from YUV data of Preview 2. The Video/Decode 1~3 on the right side of the screen are three 720P MP4 format videos.

5.jpg

 

3. Demonstration

6.Firefly-RK3288实物图.jpg

6.Firefly-RK3399效果图.jpg

 

Measured parameters:

At the same time, two channle hard encoding and five channle hard decoding, 720P hard codec can reach 26~30fps, while the 1080p hard codec can reach 13~15fps.

 

4. How to use

Download and install the firmware (Firefly_Multi_Codec.img) , then prepare three H.264 encoding MP4 file, put into the Firefly-RK3288 development board memory of the root directory, and renamed as: video1.mp4, video2.mp4, video3.mp4. the files final path is:

/mnt/sdcard/video1.mp4

/mnt/sdcard/video2.mp4

/mnt/sdcard/video3.mp4

 

5. Firmware Download

Firefly-RK3288 Multi Codec

Firefly-RK3399 Multi Codec

   

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