| 摘要 |
<p>Disclosed are a method, device and system for processing multimedia data, which belong to the field of information technology. The method comprises: each coding device in a plurality of coding devices coding multimedia data by means of a multi-path coding channel to obtain multi-path coded data; and packetizing the multi-path coded data and sending the packetized data to a corresponding direct memory access (DMA) cache in a transmission device, and unpacking the packetized data in the DMA cache and transmitting the unpacked data by the transmission device. By adopting the method of cascading a plurality of coding devices and a transmission device, the present invention realizes apportioning multi-path video coding among the plurality of coding devices, which can solve the problem of excessive load of a single coding device. By adopting a DMA transmission mechanism, not only the stability of code stream transmission of each coding device can be ensured, but also the multithread parallel processing of a code stream can be realized. By adopting the method of packetization sending, the efficiency of DMA transmission is improved, and the power consumption of the CPU is lowered.</p> |
