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Thread: Reducing Video File Size

  1. #1

    Default Reducing Video File Size

    Hi,


    I have a question that is haunting me for years, and I have been looking for a solution ever since. I am just an average user/editor of videos. Depending of the term average, it means for me that I can download converters, knows how to twitch (very little) some of the qualities to reduce a file size like resolution and such. But really, I don't know any other things so I'm really not a professional in ay way at all.


    Going straight to my point, I really have a hard time reducing file sizes. My girlfriend and I are constantly having vacations. And as normal couples do, we take pictures, videos of the sceneries, beaches, natures, cities. Currently, I'm just using my Samsung Galaxy S6 Edge phone for capturing such moments set in Full HD mode, not the 60 FPS mode. just the normal one.


    Concentrating on videos, I find it really frustrating why a simple 30 minute HD video garnishes 4GB worth of file! At my first use of a technology, I though maybe it was a glitch, but years of frustration shows an average of 1GB for 10 mins of video, 2.5GB for abround 20 mins and my last one was 3.99GB for 33 mins of video. It's not even on 4k.


    Maybe I'm asking for two things, knowledge and solution. Are there anything wrong with shooting with a smartphone? I had the same experience with my other Samsung phones as well and a few LG ones, so I know this is not just hardware related. Am I doing anything wrong? I am also an avid movie viewer as well that downloads digital movies (legally of course). I ALWAYS download 1080p movies and sometimes Blue-Ray ones. I notice that for a 1080p movie which spans to about 1.45 hours to 2.30 hours only has roughly about 1.2GB of space! I mean wow, compared to my videos, these 1080p movies are about 50% clearer, better fps, better sound but about 75% smaller than my home videos. You understand my frustration on this issue, as I have hundreds of videos, and now I was compelled to write in video forums as I'm losing space and just don't want to delete videos for sentimentality.


    Now for my 2nd thing to ask which is the solution, I have tried video converters. On my last video the 3.99GB worth 33 mins, I notice that using video converters, and converting it to the same format mp4 to mp4 with 1920x1080 > 1920x1080 resolution, I was able to reduce the file size by have to exactly 1.99GB, even though it has the same quality based on the settings before converting. But I see somehow a reduced quality comparing the old and newly converted video side by side. I am tempted to say that it is a "tolerable reduced quality" being that it was reduced in half, but I can not as better movies shot is 1080p as stated above only garnish around 900MB-1.5GB the most for a full size movie and mine is just 30 mins.


    As much as I want to consider reducing resolution, reducing sound quality, reducing fps and anything that amounts to reducing quality, I can not do so as I want to know, how do movie people do that kind of magic? Am I doing anything wrong? Is there some sort of software I'm missing that's why I have these issues?


    Apologies for the long post, but I gave my best detail of what is my issue, what I am asking, what have I already done, some things to compare with, hoping that professionals will be able to direct me to a solution.


    Thank you so much, may everyone have a God blessed day!
    -Paul

  2. #2

    Default

    Hope any professional can help me on this. Thanks!

  3. #3

    Default

    Quote Originally Posted by chanpaulm View Post
    I find it really frustrating why a simple 30 minute HD video garnishes 4GB worth of file!
    Like you already figured out that is nothing unusual.

    Quote Originally Posted by chanpaulm View Post
    Are there anything wrong with shooting with a smartphone?
    Nope. If you get the quality you are aming for you are good to go.

    Quote Originally Posted by chanpaulm View Post
    I had the same experience with my other Samsung phones as well and a few LG ones, so I know this is not just hardware related.
    Not quite. Video compression is highly computation intensive which also means high power consumption. In order to let your phone battery last longer than ten minutes manufacturers tend to use low video compression on such devices.

    Quote Originally Posted by chanpaulm View Post
    Am I doing anything wrong?
    You have the wrong expectations

    Quote Originally Posted by chanpaulm View Post
    I notice that for a 1080p movie which spans to about 1.45 hours to 2.30 hours only has roughly about 1.2GB of space!
    This comes from using expensive, high computation intensive algorithms.

    Quote Originally Posted by chanpaulm View Post
    I mean wow, compared to my videos, these 1080p movies are about 50% clearer, better fps, better sound but about 75% smaller than my home videos.
    The better quality likely comes from the camera gear that is used. I mean there must be a reason why professional cameras cost multiple thousand bucks compared to maybe a few hundred for a mobile phone.

    Quote Originally Posted by chanpaulm View Post
    I'm losing space and just don't want to delete videos for sentimentality.
    Disc space is cheap as hell.

    Quote Originally Posted by chanpaulm View Post
    I was able to reduce the file size by have to exactly 1.99GB, even though it has the same quality based on the settings before converting.
    It may have the same resolution settings but this isn't the same as quality.

    Quote Originally Posted by chanpaulm View Post
    But I see somehow a reduced quality comparing the old and newly converted video side by side.
    That's because consumer video compression isn't lossless. You always trade compression for quality. Expensive encoders usually do a better job than free ones. Note that the quality/compression compromise that can be achieved also highly depends on the content of each frame.

  4. #4
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    Default

    Excellent answer XXLRay
    Tim

  5. #5

    Default

    I do what I can

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