How Video Compression Works
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- čas přidán 7. 09. 2024
- Have you ever wondered how video streaming is possible? Let's think about how big a typical 1080p video is: 1920x1080 pixels, 24-bits each, 30 frames per second... That's almost 1.5 gigabits per second. How can you transmit that much data, over the air, in real time? The answer is video compression.
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Video Highlights:
1. Codecs
2. Intra-frame (spatial) coding
3. Inter-frame (temporal) coding
4. Block motion estimation
5. Motion compensation
6. Residual frames
It was such a nice surprise to see that my video was recommended by Marques Brownlee on my wedding day. Thank you Marques and everyone who came here from his channel! This has been a great wedding gift.
Congratulations on the wedding!
Happy 0th anniversary. This was a very informative video and I hope this exposure gives your channel a boost.
Congratulations on your wedding! Cant wait to learn all the machine learning stuff on your channel. Keep up the good work!
You welcome
. Congratulations 🎊
congrats bro
He is sitting in a room - different to the one i'm in now...
SeanfromSydney Oh lord.
😂😂😂
Who's to blame that you're in a different room than him. 😂
PTSD
lol
Us: Why are we here?
MKBHD : *Ok so I'm sitting in a Room*
This guy's gonna have the surprise of his life when he sees his video suddenly hit 100k views... Kudos on a nice video though!
Lol
Didn’t know you knew the future
Lol
I know right hahahaha, MKB got me here too
@@Nefarious_Fish 84,241 views
Aug 23, 2018
No one: ....
Literally Nobody:
MKBHD: *ight imma start this man’s whole career!!!*
no really dude that was a great video and that's coming from someone that religiously watches techquicke videos.
all I can say is keep up the good work man, best wishes... btw *subbed*
not funny
This guy is an engineer and a researcher at Intel, has a PhD from UT Austin, and has written some awesome research papers on surface water mapping using satellite imagery and deep learning. CZcams is more like his hobby.
came from MKBHD to say Hi
I've heard you did a gread job
Gonna watch this after the MKBHD one!
did they do a great job?
MKBHD gang but more importantly you killed it nice video
Not sure what he's saying, but I trust him since Marques sent me🤓
Thank God, MKBHD referred you. You are a very good teacher, thank you for your service!
Simple, clear and on point. Good job, really!
Thanks!
This video shoud have more likes, great job man.
And It Will have
Hold that thought
The day has come...
i swear i was going to reply to him but yall did it first
I was totally lost on this and came out a pro, awesome video!
Mkbhd fans here.?
This guy did a great job being able to get a recommendation from mkbhd
Came from MKBHD...stayed for the amazing content. Keep it up! ✌️
Who else came here from MKBHD?
MKBnoD²
Team MKBHD
yeah we love learning
Yeah ikr
MKBHD sends his regards.
Thanks for the explanations. At 1:22 though, I believe it should be saying "temporal (inter-frame)", and not "temporal (intra-frame)".
In b4 MKBHD puts this video at 2 million views.
nah, still 28k itself :/
MKBHD sent me. Views about to skyrocket lol
Bro you're about to get some legit viewsssss
Thanks, Leo, for compressing it all within 5 minutes. :)
Massive respect to the pioneers behind this technology. It is insane how humans are capable of thinking like and implementing it on a computer. Crazy!
MKBHD gang taking over
It’s just sooo mind blowing how all those video compression formats works,it just blows my mind how the decoder reconstructs and approximates the original frames back,so what we are seeing on tv is not the original footage but an approximated version of it,heck our tv’s can even add extra new frames between wxisting frames to averagely more close approximates mother nature in terms of motion, so what if the footage was only recorded at 12 frames per second,then your 100hz tv can add 8 new frames between 2 existing frames to smooth up the motion,it’s just mind blowing what can be done with less,😁
Tbh Marques was right--this is a very clear and concise explanation of video compression. It even introduces technical features like I-frames
As someone who is very interested in machine learning finding your channel was a gift. Glad MKBHD sent me here.
Hello; I still cannot understand how video compression works,.................your videos are great to watch..
every video you upload is a gem, filled with wisdom and fun!
Came from mkbhd. Subscribing for support. Good luck!
Congrats on the shoutout man!
Marquees Says hi ;)
No one :
Literally No one :
People came from MKBHD : who's here from MKBHD.
This, will soon be your first 1M view video 😉
We are here to take you to 1m views. Courtesy of Markass Brownie
MKBHD bumped this up! Congratulations!!
Marques knew this would happen. He chose a video with low views then referenced the amount of view. Genius.
Congratulations brother your channel is about to BOOST! Thanks to MKBHD for putting your link in his video. As this channel is really good and educational you will definately gain more subs!
you are way better than my university lecturer
All the best for 100k views buddy!
*MKBHD:* It's only got a couple of thousand views.
*Also MKBHD:* I'm gonna blow up this guy's whole career!
Watching your video, after the marques mentioned about block motion estimation, and on searching the same on yt, ur video came first
guess who ? MKBHD linked this video ! Your channel is going to grow rapidly dude !!
He's gonna be so happyyy
I can't imagine how you explained this so easily.
You made it so easy and understandable that i can't believe... 😊 Thanks for making.
Please explain more concepts of AI like this.
Your videos have remarkable quality. I especially love the ones on AI. Was looking for a good channel to learn about AI as well. I'm glad Marquess brought me here... You definitely earned my sub...
You sound like a nice person, just saying
(good video too)
congrats on the wedding
Congrats on the wedding! Great video!
Actually, 1920x1080i (interlaced) is 1.5Gb/s an 1920x1080p (progressive scan) is 3Gb/s. This is raw uncompressed video.
This is one of the best videos I've ever seen summarizing video coding. Very succinct and informative!!
MKBHD finally referred to a very good teacher. Very good decode man.
Gotta be tryin' for a Great encoder.
I'm ready for you in 10 years'.
Mkbhd has shared this video, it’s pretty soon going to get over Million views 😂
I love your videos. You are my spirit animal in computer vision.
Thanks, glad to hear that!
This is an incredibly helpful video; well-put together, clean, and concise. Thank you for what you do!
Awesome explainer. I knew some of how this worked in theory but had never seen such a straightforward explanation. Cheers!
This dude "HAD" only 1,000 views yesterday, today 17,006......Lets get this dude 1 mil views!!!!
Best video oabout compression of video.
Very well explained. Many thanks from cameroon.
Can't believe I got here before the expected explosion in views.
Great video man! You deserve much much more views and like. Keep up your good work. Also congratulations for your wedding :)
Clear and on point, thank you and Congrats Leo
Marques sent me. Very informative.
Excellent explanation! Thanks for uploading! :)
MKBHD approves of this video.
I would like to learn more about video compression.!
I'm debating burning 200GB of footage to a 100GB disc by compressing it all but I don't know if 50% is too low
Hi, I think I spotted an inconsistency.
At 01:06 and 01:21 both say “intra-fame”.
Later at 03:15 you speak of “intra-frame” and “inter-frame” compression.
Does that mean the slide at 01:21 should've said “inter-frame”?
great video dude! congrats on the plug from mkbhd!
crazy to think about, how a 1gbit connection wouldnt be enough for a 1080p stream.
Excelent explanation!! subscribing...
P.S.
Nice glasses :D
Here from MK
Great video, really interesting and looking forward to looking more into this
this video's explanation is excellent, thank you
Great explanation! I come from MKBHD test.
Leo: Man! I'm not getting much views
Mkbhd: Hold my room
How do you prepare your videos to explain fluidly? Do you learn a script by heart? Great video as always
Thanks! I take notes throughout the week. Also, I cut out the pauses and filler sounds in post processing. It's actually noticeable at 4:12.
@@leoisikdogan you are a skilled educator, keep doing what you do :)
Thanks for the positive feedback!
Thanks, i was looking for a good explanation of this stuff.
anyway you can somehow implement this into obs studio for streaming or give tips on how to get good quality on it?
Working on this myself now.
What's really interesting is that some of you may have already seen glimpses of this happening when video playback "glitches."
Take this video from the animated adaptation of "The Dark Knight." czcams.com/video/_KfsAK3fIQo/video.html
In the beginning, the frame is completely grey and you see blocks of new detail appear and pan up. This is basically happened there is that for some reason, the very first frame upon which the frames of the first two seconds are based on was missing. The decompression algorithm therefore applied all that block motion estimation on a grey initial frame. New frames are loaded and then shifted upwards.
I've had moments when I was clicking on the timeline of videos on my computer where the current frame would also be lost, but I would see the residual frames be applied to the grey frame. The result often looked like a kind of grayscale drawing of what the frame should look like. It's really interesting.
Great video. Informative and easy to understand. Thanks.
Very well explained
Landed here from MKBHD's video.
Great explanation though.
Very nicely done video
Great explanation! Thanks
Very nice video! Thanks!
Why are you underrated !!!
New subscriber from MKBHD.
this is amazing! so much information:) great video
Really useful stuff, thanks for sharing!
good job
Great explanation
absolutely amazing
Great explanation Is there a detailed explanation in the form of a series of video lectures about h265
1:20 slide header text should read "inter-frame" instead of "intra-frame". The subtitles and speech are correct though.
True, thanks for pointing out!
You really did a good job! Great Video.
You're about to blow up.
Well it really is good video
MKBHD sent me here of course
Good one. Thanks, now i can answer the question my students asked :)
wow, CZcams rolled back all the views from MKBHD: I saw the counter WELL above 100k, but now it's 15k.
WTF?
irrelevant but i really love ur voice
such a great video !