[4K高清]NASA - 从太空看奇特壮丽的北极光[2160P/MP4/410MB]
从太空看奇特壮丽的北极光是怎样的一幅景象?NASA于今年4月17日发布了一段4K视频,从上帝的角度观看神圣的极光、地球的日夜晨昏。
General
Complete name : Stunning Aurora Borealis from Space in Ultra-High Definition (4K).mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 411 MiB
Duration : 5mn 10s
Overall bit rate : 11.1 Mbps
Writing application : Lavf56.25.101
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 5mn 10s
Bit rate : 11.0 Mbps
Width : 3840 pixels
Height : 2160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.044
Stream size : 406 MiB (99%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Mode extension : LC
Codec ID : 40
Duration : 5mn 10s
Bit rate mode : Constant
Bit rate : 126 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Frame rate : 43.066 fps (1024 spf)
Compression mode : Lossy
Stream size : 4.65 MiB (1%)
Default : Yes
Altternate group : 1
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