By PURPLELEC | 12 August 2023 | 0 Comments
How to build a dual-device live broadcast with a video capture card
The video capture card is equipped with a professional video processing chip, which can collect and process the analog signal output by the video source and convert it into a digital signal, and then compress and encode it into a digital video sequence, so that the video source device does not need to undertake the corresponding encoding and decoding work. The live broadcast content is output through the capture card HDMI, and the rest of the link is completed by the capture card and another live streaming computer.
Two-device live broadcast mechanism: signal source ——> (HDMI side) video capture card (USB side) —> streaming host —> network —> live broadcast;
1. Preparation tools: game tablet (support OTG function), laptop, superior capture card, docking station, HDMI video cable;
2. Connecting devices: Connect the HDMI end of the video capture card to the game tablet through the USB-C docking station + HDMI cable; connect the USB end to the live streaming device, whether it is a desktop or a notebook;
3. Software settings: After connecting the device, open the game software on the game tablet, then open the live broadcast software on the computer, add a video capture device, and you can capture the game screen on the mobile phone!
In the case of not using a video capture card, game tablets/mobile phones and laptops can also complete the live broadcast, but in the case of too many background programs running, slow running, freezes, delays, etc. are inevitable, and the application of the video capture card , Greatly reduce the CPU load of the game device, improve the game quality and fluency, and at the same time ensure the fluency and high quality of the live broadcast screen on the computer!
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