Terminology

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En provenance du cours de University of California San Diego

Internet of Things: Multimedia Technologies

72 notes

University of California San Diego

Internet of Things: Multimedia Technologies

72 notes

Cours 5 sur 6 dans Specialization Internet of Things

Content is an eminent example of the features that contributed to the success of wireless Internet. Mobile platforms such as the Snapdragon™ processor have special hardware and software capabilities to make acquisition, processing and rendering of multimedia content efficient and cost-effective. In this course, you will learn the principles of video and audio codecs used for media content in iTunes, Google Play, YouTube, Netflix, etc. You will learn the file formats and codec settings for optimizing quality and media bandwidth and apply them in developing a basic media player application. Learning Goals: After completing this course, you will be able to: 1. Explain the tradeoffs between media quality and bandwidth for content delivery. 2. Extract and display metadata from media files. 3. Implement and demonstrate a simple media player application using DragonBoard™ 410c.

À partir de la leçon

Terminology/Cheat Sheet (Beginner)

In this course, you will see a lot of new words and acronyms you might not be familiar with. If you feel comfortable with your knowledge of tech terminology, feel free to skip these lessons since they will not affect the overall integrity of the course. If you see something that you want to know a little more about, feel free to watch the video to gain insight on some basic concepts. We do expect you to know the majority of this material before going into the next module, we would recommend going through the lessons as a quick brush up.

Introduction to Lesson 11:15

Terminology3:41

A look back at Lesson 10:50

Rencontrer les enseignants

Harinath Garudadri
Associate Research Scientist
Qualcomm Institute of Calit2, UC, San Diego
Ganz Chockalingam
Principal Engineer
Qualcomm Institute of Calit2, UC, San Diego

Everyone, welcome back and here, now, we're going to talk about

the terminology that we may or may not be covering in this course.

Once again, there's a giant list.

So feel free to take your time, go to the view, pause, read, look it up, whatever.

>> No, absolutely, yeah, so I guess first off, terminology,

we're probably going to be saying this quite a few times, multimedia, right?

>> Yeah.

>> In general, I guess, for us multimedia is going to be the audio/video

utilities or utilization of multimedia.

Is that the right way of saying it?

>> [LAUGH] >> And yeah, so, it's basically

combining the different formats that consist of multimedia.

You have motion picture so movies, motion video,

you have audio, you have still images, you have animation, I believe graphics.

>> Yeah, graphics.

>> Graphics, computer generated images.

Yeah, so there's all different kinds of multimedia.

All different kids of forms of multimedia and

hopefully we get a chance to bring in as many of those forms as possible.

I'm pretty sure we mostly folks seen on video and audio.

So yeah, libraries.

>> Library is something we're going to talk about more in the supplemental

section, but in our case the library is something you use in programming to

add functionality to a program you're writing.

Says maybe you don't want to reinvent the wheel.

Someone already did created like some kind of like, the camera,

someone already made the camera.

You don't have to reinvent that to create images so put it in my way

>> Yeah, and so on and so forth.

The rest of this list I would recommend once again, pausing and taking some time

to read some of these scalability, maintainability, sub-sampling.

All of these play a role, one way or another when working with multimedia.

Here's some more terminology you that might hear if you're an Apple user.

QuickTime is a great multimedia resource that already comes with your computer.

You can use it to do all sort of tasks for you.

We will talk about one of the flavors of multimedia,

you have motion video, you could pause, check this out.

Again, we'll provide you with the website,

JavaScript, Netscape's simple scripting language.

It was used, I feel like it's still used obviously but

Netscape was an old browser I remember.

[LAUGH] A long time ago not around anymore, is it?

>> Not sure. >> [CROSSTALK] [LAUGH] I haven't used it

in forever.

>> Anyways so there you go, DirectX, Delta Frame.

You might hear someone say like,

hey let's make an app that calculates the Delta Frames.

Instead of sending a new image each time,

you just calculate the difference in each image and send that information instead.

>> Right. >> All these things can help you maximize

your thought process when constructing applications in the multimedia realm.

I think we got one more here, so yeah, codecs.

In the next module, actually, you're going to hear our Professor speak

to you a lot more about audio/video codecs.

And I know he did this back in the VOIP module, but

he's going to do it again on a whole other level dealing more with media.

So with video motion picture codecs.

So, yeah, there you go.

Feel free to skip through this, use it however you like,

put it on your cheat sheet, and we'll see you in the next videos.

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