Animation & Video 1. High labor requirements tend to make animations a costly type of resource....

Animation& Video

1

High labor requirements tend to make animations a costly type of resource. Nontrivial animations usually require a labor-intensive process to complete.

You can buy many generic animation clips on CD/DVDs that will enhance multimedia presentations and productions. However, it can be difficult finding ones that meet specific needs.

More and more animations are appearing on the Internet. These can be simple animated gifs, or more sophisticated VRML sites. Just as with sound on the Internet, animation files must first be downloaded to the client computer, and then they are played. We will also examine the streaming of animation/video when we examine multimedia on the Internet.

2

Animation

mouse

from a CD-ROM3

Animation

Animated Gifs

from the Internet4

Animation

from the Internet

made with Digital Morph2.7 MB

5

Animation

6

Animation

43.8 MB

7

Video

Who hasn’t wanted to do this !!!

8

Video

.AVI (PC)

.MOV (Mac)

.MPeG

.3g2

.GIF (Office2000 - 2010 & Browsers)

.SWF (Shockwave)

.RA (streaming)

9

Animation/Video File Formats

10

File Size Considerations

Like graphics, the size of the image (length x width) in pixels times the color depth determines how many bytes a single image (frame) requires.

Since an animation/video is just a series of images, once the size of a single frame is known, we multiply the result by the number of frames per second (fps) to determine the size of an animation/video file.

Finally we multiply by the length (time).

Unfortunately, the results in files in the gigabyte range.

111920 x 1080 x 30 fps x 16 sec = .993 GB

So one minute requires 3.7 GB and an hour requires 223 GB!

So one minute requires 3.7 GB and an hour requires 223 GB!

File Size Considerations

Need a digital camera to capture image

Need a 1394 (Firewire) card for the computer or a USB 2.0 port or wireless

Need a 1394 or USB cable to connect the digital camera to the computer

AND Software to transfer/capture the video information


6-pin4-pin

Transferring Digital Video to a Computer

12

Need an analog camera to capture image

Need a video capture device for the computer

Need a specific cables to connect the analog camera to the computer

RCA

S-video



13

Transferring Analog Video to a Computer

AND Software to play/capture the video information

AND Software to play/capture the video information

Need a coaxial cable to connect your cable serviceto the computerCoaxial

Cable

Need a video capture device for the computer

TV

Tuner

14


15


External - QuickCam (Circa 2002)

USB port

640 x 480 window (max)

5 KHz sampling rate

15 fps (max)

Webcams

17

Other Video Input Devices

USB port

16:9 – 1280x720p

3 MP photos

There is an HD version that takes 10 MP photos

Webcams

18


External – Logitech C260 (Circa 2012)

1280x720 8.42MB .wmv

Also 16:9 – 1280x720p

Webcams

19


Internal – (Usually on a laptop)

Camera Mic

1280x720 6.8 MB .mp4

Multimedia Cell Phones

20


1920x1080p

Basically there are three types of software to:

Create/Capture

Edit

Play

21

Animation/Video Software

• Purpose of this software is to capture, and compress video, and to interleave it with incoming audio.

• May include editing software shown below.

• Range in price and functionality:– Free – Movie Maker– Mid Range – Pinnacle Studio – $60– High End – Adobe Premiere – $699– Higher End – Final Cut Pro – $1,000

22

Video Capture/Edit Software

Media Player (PC) - player for AVI and MPG files

http://windows.microsoft.com/en- US/windows/products/windows-media-player

Real Player (PC & Mac) - player for AVI, MPG, and MOV files

http://www.real.com/realplayer/search/media-player

Quick Time (PC & Mac) - player for AVI, MPG, and MOV files

http://www.apple.com/quicktime/download

23

Free Video Playback Software

http://windows.microsoft.com/en-US/windows/products/windows-media-player




http://www.real.com/realsuperpass.html/?pcode=rn&rsrc=header&cpath=realhomeg&src=realhomeg_20050922

Video Screen Capture

24

Video Screen Capture Software

GIF Construction Set - www.mindworkshop.com/alchemy/gifcon.html

Digital Morph ($19)

25

Animation Software

VIDEO

COMPRESSION

26

• Uncompressed video takes huge amounts of storage space.

• Video compression eliminates redundant video artifacts/data via prediction between frames.

• When using the Web, sometimes “streaming” video such as RealVideo or Shockwave is used.

27

Video Compression

Remember slide 12, where a hour of uncompressed video requires 223 GB.

Remember slide 12, where a hour of uncompressed video requires 223 GB.

For this course, wewill learn how to integrate existing animation/video filesinto VB programs.

28

The Media Control Interface (MCI) provides standard commands for playing multimedia devices and recording multimedia resource files. These commands are a generic interface to nearly every kind of multimedia device. We will use the mciSendString function:

29

Some Preliminaries

General command format: mciSendString(CommandString,0,0,0)

mciSendString("open skiing.wmv alias movie“,0,0,0)

commandcommand file namefile name aliasalias

mciSendString("close movie“,0,0,0)

mciSendString("play movie“,0,0,0)

Notice that the alias is similar to what we did when opening record structured files, where we equated a file number with a file name and then referred to the number.

Notice that the alias is similar to what we did when opening record structured files, where we equated a file number with a file name and then referred to the number.

However, before using it, we have to declare the mciSendString function:

Private Declare Function mciSendString Lib _ "winmm.dll" Alias "mciSendStringA" (ByVal _ lpstrCommand As String, ByVal _ lpstrReturnString As String, ByVal _ uReturnLength As Integer, ByVal _ hwndCallback As Integer) As Integer

30

Some Preliminaries

Notice that the function returns a value, but we will not use it.

Notice that the function returns a value, but we will not use it.

Do not worry about this declaration. You will just copy and paste it into your next assignment.

Do not worry about this declaration. You will just copy and paste it into your next assignment.

31

Some Preliminaries

Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal _ lpstrCommand As String, ByVal _ lpstrReturnString As String, ByVal uReturnLength As _ Integer, ByVal hwndCallback As Integer) As Integer . . .

Private Sub cmdPlay_Click(...)Handles cmdPlay.Click mciSendString("open skiing.wmv alias movie",0,0,0)

mciSendString("play movie",0,0,0)End Sub

Private Sub cmdClose_Click(...)Handles cmdClose.Click mciSendString("close movie",0,0,0)End Sub

Let’s create this form in which to play a video.

Let’s create this form in which to play a video.

Note, this is framedin a PictureBox.

Note, this is framedin a PictureBox.

32

Some Changes


Private Sub cmdPlay_Click(...)Handles cmdPlay.Click mciSendString("play movie",0,0,0)End Sub


Note: You cannot break a string like I did. I just

needed the room!

Note: You cannot break a string like I did. I just

needed the room!

mciSendString("open skiing.wmv type mpegvideo alias movie parent "& picVideo.Handle.ToInt32 & " style child",0,0,0)

mciSendString("open skiing.wmv alias movie",0,0,0)

PictureBox namePictureBox name

33

Some Changes


Private Sub cmdPlay_Click(...)Handles cmdPlay.Click

mciSendString("play movie",0,0,0)End Sub


Dim filename As Stringfilename = "skiing.wmv"mciSendString("open " & filename & " type mpegvideo alias movie parent "& picVideo.Handle.ToInt32 & " style child",0,0,0)

Playing movies/videos in VB.NET http://www.vbforfree.com/?p=402

MCI command string tutorial: http://www.vbforfree.com/?p=155

mciSendString function: http://msdn.microsoft.com/en-us/library/ms709492.aspx

MCI commands: http://msdn.microsoft.com/en-us/library/ms712587.aspx

34

Video Resource Links

Read the Description

of Assigment-10

35

Animation & Video 1. High labor requirements tend to make animations a costly type of resource....

Documents

Transcript of Animation & Video 1. High labor requirements tend to make animations a costly type of resource....