h264 aac编码格式的mp4测试视频，5分钟时长

视频具体信息 ID":"1", "Format":"AVC", "Format_Profile":"High", "Format_Level":"4.1", "Format_Settings_CABAC":"Yes", "Format_Settings_RefFrames":"4", ID":"2", "Format":"AAC", "Format_Settings_SBR":"No (Explicit)", "Format_AdditionalFeatures":"LC", "CodecID":"mp4a-40-2", "Duration":"310.020", "Source_Duration":"310.016", "BitRate_Mode":"CBR", "BitRate":"128151", "Channels":"2", "ChannelPositions":"Front: L R", "ChannelLayout":"L R",