Software Capability Matrix

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The list of modes that can be generated by the Portsdown software and hardware is extensive. All modes have different capabilities. This table is an attempt to summarise what is possible with software version 201803060 and later. Please read with the notes below.


Encoding Source Audio 4:3 16:9 720p 1080p Viewfinder Streaming
MPEG-2 Pi Cam Yes Yes Yes Yes No Yes Yes
MPEG-2 Comp Vid Yes Yes Yes No No No Yes
MPEG-2 TCAnim Not Available
MPEG-2 Test Card Yes Yes Yes Yes No Yes Yes
MPEG-2 Pi Screen Not Available
MPEG-2 Contest Yes Yes No No No Yes Yes(!)
MPEG-2 Webcam Yes Yes Yes Yes No No Yes
MPEG-2 C920 Yes Yes Yes Yes No No Yes
H264 Pi Cam No Yes No No No Yes Yes
H264 Comp Vid No Yes No No No No Yes
H264 TCAnim No Yes No No No Yes No
H264 Test Card No Yes No No No Yes No
H264 Pi Screen No Yes No No No Yes No
H264 Contest No Yes No No No Yes No
H264 Webcam No Yes No No No No Yes
H264 C920 Yes Yes Yes Yes Yes No No
As Req IPTS In Yes Yes Yes Yes Yes No No
As Req File TS Yes Yes Yes Yes Yes No No

NOTES

Please feel free to contribute your experiences to this page.

1. The H264 modes (apart from C920) transmit a 704 x 576 image from the Source at SRs from 125KS up to over 4MS with the Portsdown filter-modulator board. No sound is transmitted.

2. The audio on the MPEG-2 test card and contest modes suffers from occasional break-up. This is due to insufficient CPU processing power in the Raspberry Pi 3.

3. A moving viewfinder is only available in Pi Cam and TCAnim (the animated test card with the bouncing balls) modes.

4. The Waveshare Touchscreen is only updated a few times each second, so movement will be displayed in a jerky fashion. The transmitted picture is smoother.