Method of managing video snapshot of receiving bitstreams of a video and bitstream parameters of the received bitstreams from a server through a network channel. The electronic device is connected to the server. The server encodes the video into an encoded file using an encoder of the server. The encoded file comprises a plurality of bitstreams. The plurality of bitstreams in the encoded file comprising a plurality of enhancement layers. According to a selection of a user of the electronic device, a snapshot grade is determined. According to the received bitstreams and the determined snapshot grade, additional enhancement layers which are not comprised in the received bitstreams are acquired from the encoded file in the server through the network channel. Based on the acquired additional enhancement layers, a video snapshot is generated.