How to split video frames into 2 halves

N

nikodim2013-12-31 09:54:40

Video processing

nikodim, 2013-12-31 09:54:40

The bottom line: a DVR with two cameras writes pictures from the cameras into one file. Pictures are located one above the other, i.e. vertically.

Task: select video sequence from only one camera for Youtube/Vimeo/…

TTX:

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                           : [email protected]
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

The test video

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3 answer(s)

E

Eddy_Em, 2013-12-31
@nikodim

mencoder -vf crop ...

N

Nikolai Turnaviotov, 2013-12-31
@foxmuldercp

virtualdub under windows

N

nikodim, 2013-01-06
@nikodim

Sorry for the long reaction and answer
VirtualDub "out of the box" does not know how to work with the video format and sound, in relation to this video.
Mencoder turned out to be a salvation - the declared capabilities solved the problem.
But... the binary didn't show up right off the bat...
And the solution was found in the sister project Tencoder , which uses the mentioned
mencoder