Encoding, decoding method, encoding end and decoding end

Abstract

The application discloses an encoding and decoding method, an encoding end and a decoding end, belonging to the technical field of multimedia. The method includes: the encoding end obtains the first encoded data by encoding key frames in the video sequence. The encoding end obtains the second encoded data by encoding the non-key frames in the video sequence. And according to the FEC algorithm, redundant processing is performed on the key frames used for determining the second encoded data to obtain redundant data packets. In this way, the difference between the bandwidth used by the encoding end to send the second encoded data with redundant data packets to the decoding end and the bandwidth used to send the first encoded data is within the reference difference, which ensures that For different types of video frames, the bandwidth used in the process of transmitting encoded data can be kept stable. At the same time, when the encoding data is lost at the decoding end, the key frame can also be restored according to the redundant data packets to improve the decoding end. The success rate of decoding the second encoded data.

Description

technical field [0001] The present application relates to the field of multimedia technology, in particular to an encoding and decoding method, an encoding end and a decoding end. Background technique [0002] With the development of multimedia technology, in order to facilitate video transmission, the encoding end can divide the video into multiple video sequences according to a fixed duration, and each video sequence includes multiple video frames. For each video sequence, the encoding end separately encodes the multiple video frames included in the video sequence to obtain multiple encoded data corresponding to the multiple video frames included in the video sequence, and then sends the multiple encoded data to the decoder. [0003] In related technologies, each video sequence usually includes a key frame and multiple non-key frames. A key frame refers to a video frame that encodes all pixel information and can independently decode a complete picture. A video frame enco...

AI Technical Summary

Problems solved by technology

[0004] However, in related technologies, if the current time coding end needs to send a key frame, since the current required bandwidth increases rapidly compared with the bandwidth required by the last sent non-key frame, the operator needs to increase the bandwidth at this time, and the operator There may be a delay when reallocating bandwidth, and the bandwidth required to send the key frame cannot be provided in time, resulting in video freezes

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