IT House reported on April 6 that recently, some netizens complained that in order to save bandwidth, station B forcibly turned on HEVC playback on the web side, resulting in high system load and loud fan noise.
In this regard, the official station B responded, saying that HEVC playback was not forcibly turned on on the web side, and the device would only be turned on if it met a certain performance.
Station B responded:
The HEVC encoding method has been launched in 2019, and it is not mandatory. High-definition HEVC decoding above 1080P will be enabled only when the device meets certain performance requirements. When playback problems caused by device performance are detected, it will also be downgraded to AVC decoding. HEVC encoding has better fluency, lower freezing rate, and can provide a variety of resolutions, which cannot be achieved by the old AVC encoding. This encoding method can indeed save bandwidth, but it is not used to save bandwidth. .
The IT House test found that when watching 4K ultra-definition video, Bilibili provides AV1, HEVC and AVC decoding options, and the default decoding may be automatically selected according to device performance.
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