How to Upload 4k From Galaxy S8 to Youtube
How can I compress videos then I don't lose a lot of the quality? My phone, a Samsung Galaxy S10, makes really loftier quality videos merely I would be satisfied if they looked like normal videos. Yanis
Videos take up a lot of space, and a lot of research goes into making them smaller. Other things being equal, a primal factor is the size of the image, just equally it is with still photographs. You can also reduce the file size by arbitrarily reducing the information charge per unit or, for preference, past using a more than efficient video compression system. The current favourite is MPEG-4/H.264/AVC (Advanced Video Coding), which is usually called MP4 for short. Technically, MP4 is the file container while H.264 is the codec that codes and decodes the video.
There are some good reasons for reducing video file sizes. For example, yous might want to customise a high-resolution video for a depression-resolution screen. Yous might also want to fit several videos on a device with limited storage, such as a smartphone or tablet, or an optical disc such equally a CD-Rom or DVD. You might desire to send the video to someone else; reducing the file size volition reduce the upload and download times.
In full general, however, it'southward a bad idea to reduce the size of irreplaceable videos just to save infinite. Deejay drives are cheap, and a £70 4TB bulldoze can hold thousands of videos. Yous can besides use cheap or free online storage at sites such as pCloud, Mega.nz, MediaFire and Yandex.Disk.
Screen resolutions keep increasing, and 640 x 480-pixel VGA videos that used to fill a screen now look tiny on today'southward 3840 x 2160-pixel 4K screens. So, ever shoot at the highest resolution that'south practical, and proceed information technology. In the long run, you volition demand every pixel yous can go.
Before we become to the details, a warning: never edit an original video file. Always keep external backups of original files, and always work with copies. Of course, this also applies to personal photos and audio files. Notwithstanding, losing a 2GB video of your holiday or a kid's birthday party volition hurt more than than losing the odd photo.
Reducing resolution
A standard computer screen with a resolution of 1280 ten 1024 shows 1,310,720 pixels, which is i.25MB. Your Samsung Milky way S10 can shoot videos at an even higher resolution of 3840 x 2160 pixels or UHD (ultra-loftier definition), where a full screen image needs eight,294,400 pixels or 7.9MB – more than 6 times as much. Even with compression, thirty frames per second adds up.
If you lot wanted to customise the video for a Windows laptop with a screen resolution of 1366 x 768 pixels (1MB per screen), y'all could make it much smaller.
To get some real numbers, I downloaded 4K Sample2.mp4 from the Samsung section of Ashok Patel's AppsLoveWorld website, which offers a few free mp4 video files for testing or demo purposes. If you just want to look at information technology, it's also on YouTube. It has been shot from a drone and then perhaps not a telephone, just either way, this 63-second video takes upwards 165MB.
Reducing the resolution from 3840 10 2160 pixels (UHD) to 1280 x 720 (HD) cut the file size from 165MB to 24MB, so I could well-nigh fit 7 videos into the infinite previously occupied by one. And while it no longer filled my 4K screen, it even so looked good quality to me.
I used WonderFox's complimentary HD Video Converter Factory, which reduced the video to 24MB in less than 20 seconds. HandBrake reduced it to 21.3MB but worked the processor harder and took a minute longer. Any Video Converter reduced it to 7.6MB with a noticeable loss of visual quality. There are lots of programs that will practice this job, and so it's just a question of finding one you lot like.
Pro tip: Handbrake can convert a smartphone's variable frame rate videos to a abiding frame rate for editing. (It stops the audio going out of sync.)
Aspect ratios
When reducing video resolutions, it is very important to go along the same aspect ratio (width to height). If you don't, clocks will no longer look circular and faces will be distorted so they are either squashed or elongated like a Modigliani portrait.
Here'southward a guide to the most common resolutions for people who can't separate 1024 by 576 in their heads.
Today'south nearly pop video format has a 16:9 aspect ratio, which is widescreen. This covers Hard disk (1280 ten 720), Full HD (1920 x 1080) and UHD (3840 x 2160). You can likewise use 1024 x 576, 1600 x 900, 2560 10 1440 and other resolutions while keeping the aspect ratio the aforementioned.
Yesterday'south near pop format had a 4:three aspect ratio, which used to be the standard for TV sets and early on monitors. Y'all can convert these videos to and from 640 x 480 (VGA), 800 x 600 (SVGA), 960 10 720, 1024 x 768 (XGA), 1440 10 1080, 1600 10 1200 (UXGA) and 2048 x 1536.
If you have a video with an odd attribute ratio, such as sixteen:10, then reprocess it to a popular widescreen width while keeping the height in proportion.
Cutting data rates
When you reduce the resolution of a video, information technology fills a smaller expanse, so you don't need to send the screen as much information. However, in some video editors, you can set the data rate to almost annihilation you lot similar. This will reduce the image quality every bit well as the file size.
Many people don't perceive or don't intendance about the divergence in audio quality between mp3 music files at 128kbps instead of 256kbps or 320kbps. Similarly, many don't care if their videos run at 2-3Mbps instead of 20Mbps or more. In fact, movie-streaming websites may reduce the data charge per unit from 10-20Mbps to 2-3Mbps because information technology saves a huge amount of bandwidth.
When I converted the 4K sample higher up, HDVCF automatically reduced the original bit-rate of 21,722kbps to three,346kbs, which is reasonable for the size. Any Video Converter reduced information technology to 996kbps, which was too much. I should have changed the quality setting from normal to high.
Alternatively, I could have retained the original resolution and reduced the data rate to a not-too-shabby 8,000kbps. Doing this in HDVCF reduced the file size from 165MB to 61MB, with watchable results. Dropping it to ii,659kbps (I asked for 3,000) reduced the file size to 20.2MB while retaining the original resolution, just with poor results – likewise many visual artefacts.
This approach works best with static subjects. A video of a talking head doesn't need equally much bandwidth as an water ice hockey game.
Change the compression
One of the best means to reduce the size of a file is to alter the manner information technology's compressed. Today'due south leading codecs, mainly H.264, are much more than efficient than the ones typically used in old mpg, wmv (Windows Media Video) and avi files. Video transcoding programs ordinarily take it for granted that you'll want to convert any one-time video into some form of MP4/H.264/AVC.
The catch, of course, is that your processor has to exercise a lot more piece of work to decode the higher level of compression. Happily, processors are more powerful than they used to exist, and Intel got round the trouble past building H.264 decoding into the CPU, under the Quick Sync Video label. A year subsequently, in 2012, AMD followed with VCE, its own Video Coding Engine.
Your Samsung phone uses MP4 as standard, but the settings permit you plow on "high-efficiency video" and "tape videos in HEVC format to save infinite". Samsung warns: "You may not be able to play HEVC videos on other devices or share them online."
Using HEVC would reduce the size of your videos, but I probably wouldn't do it.
HEVC (high-efficiency video coding) is shorthand for H.265, which should have been a shoo-in to replace H.264, H.263, H.262 and then on. Unfortunately, it is heavily "patent encumbered" – and Samsung seems to ain far more of the patents (4,249) that anyone else.
Forth with the patents and patent sharing pools, H.265 brings a dramatic increase in royalties over H.264, plus the threat of content distribution fees. A breakaway grouping has therefore formed an Alliance for Open Media to create a royalty-costless alternative called AV1.
Ordinarily, this wouldn't amount to a loma of beans. In this case, the alliance includes Amazon, Netflix, Apple tree, Google, Microsoft, Facebook, Intel, Arm, AMD, Nvidia, Cisco and … Samsung!
All bets are off until AV1 appears.
Take y'all got a question? E-mail information technology to Ask.Jack@theguardian.com
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Source: https://www.theguardian.com/technology/askjack/2020/mar/05/how-do-i-shrink-the-size-of-my-phone-videos
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