A video transmission method, device, resource server and storage medium

Abstract

The embodiment of the invention discloses a video transmission method, device, resource server and storage medium. Wherein, the method includes: if the network bandwidth of the current session party is less than the total initial transmission bit rate of the video to be transmitted, then according to the sequence of drawing frames of different video frame types in the video to be transmitted, determine the corresponding video frame type of the video to be transmitted The frame extraction ratio under different video frame types when the total remaining transmission bit rate after frame extraction best matches the network bandwidth; transmit the video to be transmitted to the current session party according to the frame extraction ratio under different video frame types. The technical solution provided by the embodiment of the present invention makes the remaining actual transmission total code rate of the video to be transmitted after frame extraction best match the network bandwidth of the current session party, avoiding key frame packet loss due to insufficient bandwidth, which causes decoding failure to cause playback In the case of freezing, the frame extraction method can reduce the transmission bit rate of the video to be transmitted without reducing the resolution of the video screen, so as to ensure that the clarity of the video playback remains unchanged.

Description

technical field [0001] The embodiments of the present invention relate to the field of video processing, and in particular, to a video transmission method, device, resource server and storage medium. Background technique [0002] With the development of network streaming media technology, multi-person video application scenarios such as multi-person video conferencing or multi-person video chat are becoming more and more common, making communication between different users more and more convenient. Stability, if the media server sends a user a video package uploaded by another user, and the user's network downlink bandwidth is low, the video package is prone to random packet loss during the delivery process, resulting in video The fluency during playback is low, and it is easy to cause playback freezes. [0003] At present, in multi-person video application scenarios, if the user's network downlink bandwidth is not enough to support the complete transmission of video packet...

AI Technical Summary

Problems solved by technology

[0002] With the development of network streaming media technology, multi-person video application scenarios such as multi-person video conferencing or multi-person video chat are becoming more and more common, making communication between different users more and more convenient. Stability, if the media server sends a user a video package uploaded by another user, and the user's network downlink bandwidth is low, the video package is prone to random packet loss during the delivery process, resulting in video The fluency during playback is low, which is easy to cause playback freeze

[0003] At present, in multi-person video application scenarios, if the user's network downlink bandwidth is not enough to support the complete transmission of video packets at the adopted video bit rate, usually only the intra-frame coding after video coding is screened out from the video packets to be transmitted. frame (I frame), and send the filtered I frame to the user, and directly discard the interframe predictive coding frame (P frame) after video encoding. At this time, because the network downlink bandwidth changes in real time, if the network downlink bandwidth If the difference between the video bit rate and the adopted video bit rate is small, only transmitting I frames will cause a corresponding waste of bandwidth. If the network downlink bandwidth differs greatly from the adopted video bit rate, even if only transmitting I frames cannot be supported, it is still Random packet loss will occur, and the coordination between network downlink bandwidth and video bit rate cannot be guaranteed

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