Exporting video with rare frame changes

hello!

i have video (basically powerpoint presentation voiceover) 20 mb in size.

total length of file 1 hour 28 minutes , can't seem find settings export video same size.

i've managed export 1 6gb file in h264 , 1 horribly-looking mpeg2 file still more bigger in size - 100 mb.

 

since presentation, there little amount of movement on screen. suspect encoded parameters removed repeating frames, leaving changing frames in video.

it not blurred or anything, here's example slide: http://c2n.me/3wtvcwm.png

can please suggest settings decent file?

thanks!

 

here information mediainfo:

 

general

complete name               : d:\downloads\123\benchmark-it webinar talent analytics beyond hr reporting-20160413 1501-1.mp4

format                      : mpeg-4

format profile              : base media / version 2

codec id                    : mp42 (mp42/isom)

file size                   : 20.5 mib

duration                    : 1h 28mn

overall bit rate mode       : variable

overall bit rate            : 32.2 kbps

encoded date                : utc 2016-04-13 17:57:44

tagged date                 : utc 2016-04-13 19:26:55

writing application         : faac 1.28

 

video

id                          : 2

format                      : avc

format/info                 : advanced video codec

format profile              : baseline@l4

format settings, cabac      : no

format settings, reframes   : 9 frames

codec id                    : avc1

codec id/info               : advanced video coding

duration                    : 1h 28mn

bit rate                    : 13.4 kbps

width                       : 1 024 pixels

height                      : 768 pixels

display aspect ratio        : 4:3

frame rate mode             : constant

frame rate                  : 8.000 fps

color space                 : yuv

chroma subsampling          : 4:2:0

bit depth                   : 8 bits

scan type                   : progressive

bits/(pixel*frame)          : 0.002

stream size                 : 8.52 mib (42%)

language                    : english

encoded date                : utc 2016-04-13 19:26:54

tagged date                 : utc 2016-04-13 19:26:55

 

audio

id                          : 1

format                      : aac

format/info                 : advanced audio codec

format profile              : lc

codec id                    : 40

duration                    : 1h 28mn

bit rate mode               : variable

bit rate                    : 18.2 kbps

maximum bit rate            : 21.6 kbps

channel(s)                  : 2 channels

channel(s)_original         : 1 channel

channel positions           : front: c

sampling rate               : 8 000 hz

frame rate                  : 7.813 fps (1024 spf)

compression mode            : lossy

stream size                 : 11.6 mib (57%)

language                    : english

encoded date                : utc 2016-04-13 17:57:44

tagged date                 : utc 2016-04-13 19:26:54

okay, video urgent 1 , i've done in case exporting video in h264@1000kb\s bitrate via adobe , encoding megui x264 following parameters:

program --bitrate 100 --keyint infinite --min-keyint 1 --b-adapt 2 --ref 5 --output "output" "input"

it bit more blurred original video , still bigger in size - 42mb, best result got after 2 hours of experimenting.

 

i happy if can tell me how next time!

thanks.

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