The development of virtual reality and augmented reality technology has enabled us to experience some of the features of the game helmet.
Once upon a time, the game helmet was only living in online novels. Now, he is getting closer and closer to us. The development of virtual reality and augmented reality technology allows us to experience some functions of the game helmet, such as the immersion of panoramic video. The realism of interaction. With the development of virtual reality technology, the field of live broadcasting will also undergo changes. 360-degree panoramic video and even panoramic stereo video will slowly enter our lives. Here I will combine my own engineering practice, briefly introduce and build a What hardware is required for the VR live broadcast system.
General live broadcast system and VR live broadcast system
Traditional live broadcast system
VR live broadcast system
The CDN part is not considered here.
Let's talk about VR cameras, splicing servers and VR glasses.
VR camera
The current VR camera solution mainly has a multi-lens integrated camera and a multi-camera combination.
Multi-lens integrated camera
2. Multi-camera combination scheme
3. Comparison of the two schemes
The all-in-one is actually assembled with multiple cameras and then some pre-processing, so there is no essential difference between the two. Taken together, the two are mainly distinguished by the following:
The video streaming mode integrated machine often combines multiple channels of video and uses Gigabit network cable for transmission. On the one hand, portability is considered, and on the other hand, the video capture card of the host is omitted.
In the synchronous mode, the hardware synchronization device can be integrated to perform hardware synchronization on multiple channels of video, while the multi-camera combination scheme can only be synchronized by software.
Local server
The local server needs to splicing, encoding and pushing the video stream. The splicing and encoding are complex calculations. Moreover, in order to achieve real-time, the GPU is often required, so the local server here often requires a better CPU. Memory, and a better performing GPU. For reference, HTC's vive recommends that the PC be configured as i5-4590+GTX970+4G memory.
VR glasses
VR glasses currently have one-piece glasses (such as htc vive) and mobile glasses (such as google cardboard). The all-in-one experience is better, but the cost is high. The mobile version works with mobile phones, reducing costs, but the experience has also declined. The current popularity of mobile VR glasses is higher, and its experience depends on the optimization of the app and the performance of the mobile phone. Among them, rendering delay and vertigo are the two main aspects of the current impact experience, and I will continue to follow up the relevant technical progress.
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