34results about How to "Improve anti-packet loss performance" patented technology

The present invention relates to a dynamic FEC method, device, computer terminal and computer-readable storage medium. By obtaining the current network packet loss rate fed back by the receiving end, the current buffer delay and the current network bandwidth, the corresponding current weighting is calculated according to the current network packet loss rate. Network packet loss rate, when the current weighted network packet loss rate exceeds the first preset threshold, two-dimensional FEC is turned on, and the corresponding two-dimensional FEC redundancy is calculated according to the current weighted network packet loss rate and the current network bandwidth, according to The two-dimensional FEC redundancy and the current buffer delay generate the corresponding two-dimensional FEC repair package and send it to the receiving end. The two-dimensional FEC can be dynamically selected according to the weighted packet loss rate, which improves the anti-packet loss capability of the network data transmission process. An effective balance is achieved between the overhead and benefits of network bandwidth resources.

Disclosed in the present invention are an anti-packet loss method, device and system for use in real-time communication, and the method comprising: sending network packets to a receiving end, the network packet including encoded video frame data and FEC redundancy data, wherein corresponding FEC redundancy levels are determined for the FEC redundancy data; receiving feedback data sent by the receiving end after the network packet is resolved and restored; when the feedback data is packet loss feedback data, according to a current packet loss model, selecting an item of FEC redundancy data having an appropriate level from among the FEC redundancy data of a plurality of preset redundancy levels, and sending the same to the receiving end; in addition, when the feedback data is decoding error feedback data, according to the current decoding error model, obtaining an independently decodable frame corresponding to a decoding error frame, and sending the same to the receiving end. The present invention solves the problems in existing technology wherein the processing of the packet loss cannot meet the demands of high quality and low bandwidth at the same time, and the anti-packet loss capability is poor. The present invention enhances anti-packet loss capability in a real-time communication.

The embodiment of the invention provides a data processing method and device and a computer readable storage medium. The method comprises the following steps: acquiring the ith multimedia data to be transmitted; when i is greater than 2, acquiring the i-1-th packet loss rate and i-2-th packet loss level; obtaining ith packet loss level according to the i-1-th packet loss rate, the i-2-th packet loss level, and fast increasing and slow decreasing relation between preset adjacent packet loss levels and a mapping relation between the preset packet loss level, the packet loss rate, the number of data packets and the number of redundant packets, and further determining the number of the ith data packets and the number of the ith redundant packets corresponding to the ith packet loss level; encoding the ith multimedia data to be transmitted according to the number of the ith data packets and the number of the ith redundant packets to obtain an ith data packet and an ith redundant packet; andsending the ith data packet and the ith redundant packet to a receiving terminal.

The present invention provides an anti-packet loss method, device, storage medium and electronic equipment for an unreliable network, wherein the method includes: determining a plurality of first valid data packets containing corresponding first numbers, and sending them to the The first target device sends the first valid data packet; if the first packet loss rate fed back by the first target device is obtained, a plurality of second valid data packets containing the corresponding second numbers are determined according to the first packet loss rate, and sent according to the The second valid data packets are sequentially sent to the first target device. In this embodiment, the data packets sent to the target device contain sequentially generated numbers, so that the target device can calculate the packet loss rate in real time, and then the server can adjust the encoding strategy in real time based on the packet loss rate, so that dynamic encoding can be realized according to the network status , improve the ability to resist packet loss, and ensure the quality of data transmission; in the unreliable network environment with high packet loss rate, it can also provide low-quality data.