Method for sending video message in IM system

The invention discloses a method for sending a video message in an IM system, and the method comprises the steps: S11, receiving a video conversion instruction, creating a video id, and transmitting the video id to a transmitting end; step S12, receiving the video fragments sent by the sending end; step S13, receiving the video message and forwarding the video message to a receiving end; step S14, acquiring first meta-information and playing start time sent by the receiving end, generating a dynamic m3u8 file according to the first meta-information, the playing start time and the second meta-information, and sending an m3u8 file address to the receiving end; the first meta-information comprises the number of video fragments acquired by the receiving end and a local cache address prefix; the second meta-message comprises the number of the video fragments which are received by the server and marked by the video id and the local cache address prefix of the server. Through the method, the waiting time of the user