Как поделить кадры видеоролика на 2 половинки

General
Complete name                            : \AW0022.mov
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 119 MiB
Duration                                 : 2mn 2s
Overall bit rate mode                    : Variable
Overall bit rate                         : 8 121 Kbps

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 1 frame
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 2mn 2s
Source duration                          : 2mn 2s
Bit rate                                 : 8 074 Kbps
Width                                    : 1 280 pixels
Height                                   : 1 440 pixels
Display aspect ratio                     : 0.889
Frame rate                               : 29.952 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.146
Stream size                              : 118 MiB (99%)
Source stream size                       : 118 MiB (99%)
Language                                 : English
mdhd_Duration                            : 122930

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 2mn 2s
Source duration                          : 2mn 2s
Bit rate mode                            : Variable
Channel(s)                               : 1 channel
Channel positions                        : Front: C
Sampling rate                            : 22.05 KHz
Compression mode                         : Lossy
Source stream size                       : 639 KiB (1%)
Language                                 : English
mdhd_Duration                            : 122930