Method for transmitting audio and video under environment of network with different speeds
A network environment and video technology, applied in the field of audio and video transmission, can solve problems such as low quality, poor signal quality, and reduced data transmission rate
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[0046] In order to adapt to the changing network environment and changing data transmission speed, the content source can be encoded into a variety of versions with different source code rates (V1, V2, ... Vn represents different source code rates, V1<V2< ......<Vn). For example, it is coded as high, medium and low versions. The above-mentioned different source rate versions can be pre-produced before transmission (for example, a movie in a video-on-demand service), or in real time (for example, a live game in a live service; videophone).
[0047] At the beginning of multimedia communication, the sending end initially selects the source code rate of the content source according to the receiving state of the radio frequency signal (of course, the above state cannot completely and accurately represent the actual data transmission rate). For example, when the radio module receives a 3G WCDMA (Wideband CDMA, Wideband Code Division Multiple Access) signal, select a high-quality cont...
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