| 摘要 |
A computer-implemented method for hosting online applications or video games, performing video compression comprising, and transmitting video and a computer-implemented system for online gaming are disclosed. The system comprises a video game or application server (402) and an encoder (404). The video game or application server receives signals related to an online video game or application over a network which may include public network components, and responsively executes program code of the video game or application to generate video output comprising a sequence of images of the video game or application. The encoder compresses the sequence of video images and generates a sequence of compressed video images. The compressing comprises a) logically subdividing each of a sequence of images into a plurality of tiles with each of the tiles having a defined position within each of the sequence of images and with the defined position remaining the same between successive images; b) encoding one or more of the tiles in each image of the sequence of images using a first compression format and encoding the remainder of the tiles in each image using a second compression format with the second compression format dependent on tiles previously-encoded by the first and/or the second compression formats and c) FEC encoding logic to generate a forward error correction (FEC) code for tiles encoded using at least the first compression format. The sequence of compressed video images and the FEC code are transmitted with each of the tiles encoded using the first compression format to a client. The client decompresses the sequence of compressed video images and the operations of receiving signals, executing the video game or application, compressing the video output, generating the FEC codes, transmitting the compressed video images, and decompressing the compressed video images are performed with a latency such that the user has the perception that the selected video game or application is responding instantly to the signals. |
