In order to meet the needs of storing and playing video, different video file formats are artificially set to put video and audio in one file.
Therefore, video files of different formats must be opened and played with a matching player.
Code name describe extension name
Flash Video A popular network video packaging format developed by Adobe Flash. .flv
AVI Developed by Microsoft, Audio Video Interactive, is to mix video and audio coding together for storage. .avi
WMV It was also developed by Microsoft. .wmv/.asf
MPEG MPEG-approved packaging format, as well as a simplified mobile phone version. .dat,.vob,.mpg/.mpeg,.mp4,.3gp
Matroska The new multimedia encapsulation format is very interactive. .mkv
Real Video It is easier to make than H.264 encoding. .rm/.rmvb
QuickTime Developed by Apple, in addition to video and audio, it can also support pictures, text, etc. .mov,.qt
Ogg Completely open multimedia system project. .ogg,.ogv,.oga
Resolution
Standard Resolution Horizontal to vertical ratio
QCIF 176 x 144 1.22:1
CIF 352 x 288 1.22:1
4CIF 704 x 576 1.22:1
D1 720 x 576 4:3
SD 720 x 576 4:3
HD 1280 × 720 16:9
Full HD 1920 × 1080 16:9
3.0MP/QXGA 2048 × 1536 4:3
4.0MP/1440P 2560 × 1440 16:9
5.0MP 2592 × 1944 4:3
UHD 4K 3840 × 2160 16:9
DCI 4K 4096 × 2160 about 17:9
Ultra HD 8K 7680 × 4320 16:9
Therefore, video files of different formats must be opened and played with a matching player.
Code name describe extension name
Flash Video A popular network video packaging format developed by Adobe Flash. .flv
AVI Developed by Microsoft, Audio Video Interactive, is to mix video and audio coding together for storage. .avi
WMV It was also developed by Microsoft. .wmv/.asf
MPEG MPEG-approved packaging format, as well as a simplified mobile phone version. .dat,.vob,.mpg/.mpeg,.mp4,.3gp
Matroska The new multimedia encapsulation format is very interactive. .mkv
Real Video It is easier to make than H.264 encoding. .rm/.rmvb
QuickTime Developed by Apple, in addition to video and audio, it can also support pictures, text, etc. .mov,.qt
Ogg Completely open multimedia system project. .ogg,.ogv,.oga
Resolution
Standard Resolution Horizontal to vertical ratio
QCIF 176 x 144 1.22:1
CIF 352 x 288 1.22:1
4CIF 704 x 576 1.22:1
D1 720 x 576 4:3
SD 720 x 576 4:3
HD 1280 × 720 16:9
Full HD 1920 × 1080 16:9
3.0MP/QXGA 2048 × 1536 4:3
4.0MP/1440P 2560 × 1440 16:9
5.0MP 2592 × 1944 4:3
UHD 4K 3840 × 2160 16:9
DCI 4K 4096 × 2160 about 17:9
Ultra HD 8K 7680 × 4320 16:9