HIH Studios

Wednesday, May 17, 2006

Comparison Charts and descriptions of the most Commonly used video and image file formats

Video Streaming vs. Downloading

Video Streaming

  • Streaming is the transfer of data in a continuous stream over the Web (usually audio or video) that allows the user to play it as it arrives.
  • To receive this content, you must have the right plug-in for the application, such as RealPlayer, QuickTime viewer, etc.
  • A method for transferring data continuously. Streaming allows you to display the data on your browser before the entire file is transmitted.

Downloading

  • To transfer (data or programs) from a server or host computer to one's own computer or device.
  • Allows media to be played quicker because it is downloaded to ones computer.

Most common Video file formats compared

Video File Format

Characteristics

ASF,WMV

(Advanced Streaming Format)

(Windows Media Video)

  • Can be streamed across the Internet and viewed before entire file has been downloaded when using a Windows Media server.
  • Requires Windows Media Player be installed on client.
  • Typically placed on an internet streaming server.

AVI

(Audio Video Interleave)

  • Can be viewed with standard Windows Players such as Windows Media Player.
  • Uncompressed yields a high quality video but uses a lot of storage space.
  • If downloading from the Internet, the entire file must be downloaded before being played.
  • Typically stored on local hard disk or CDROM or made available as download from web server.

MOV

(Apple Quicktime Movie)

  • Requires Apples Quicktime Movie Player
  • Depending on Compression chosen can provide a very high quality video clip, but better quality uses more storage space.
  • Can be streamed across the Internet and viewed before entire file has been downloaded if using a Quicktime streaming server.
  • Can be placed both on an internet streaming server, or local storage such as hard disk or CDROM.

MPEG

(Motion Pictures Experts Group)

  • Can provide VHS quality movies or better
  • Mpeg1 is equal to VHS.
  • Mpeg2 is better than VHS and used for DVD
  • Mpeg4 is being developed
  • Requires an MPEG player to view
  • If downloading from the Internet, the entire file must be downloaded before being played because files sizes are very large.
  • Typically MPEG1 is used to make a one hour VCD movie.
  • Typically MPEG2 is used to make DVD movies, but can be used to make about a 30 minute high quality VCD.
  • Can be placed on any storage media large enough to hold the file, but at current time the internet speed will not support streaming MPEG files. Any MPEG files found on the Web will have to be downloaded to the local drive and played using an MPEG player.

RM

(Real Media)

  • Can be streamed across the Internet and viewed before entire file has been downloaded when using a Real Networks Streaming server.
  • Has very high compression, but at a cost to quality.
  • Requires Real Networks RealPlayer to view content.

Basic Picture Image file format comparison

This chart is particularly helpful when wanting to place an image file on
diskette or a website and the size needs to be small.

The table below illustrates the relative file sizes that can be achieved by the
different file formats in storing a "native" 1MB image, and also indicates the color depth supported:

File format

Image size

No. of colors

BMP - RGB

1MB

16.7 million

BMP - RLE

83KB

256

GIF

31KB

256

JPEG - min. compression

185KB

16.7 million

JPEG - min. progressive compression

150KB

16.7 million

JPEG - max. compression

20KB

16.7 million

JPEG - max. progressive compression

16KB

16.7 million

PCX

189KB

16.7 million

TIFF

1MB

16.7 million

TIFF - LZW compression

83KB

16.7 million

PNG - file format will compress files at a similar ratio to jpeg, except unlike jpeg, resaving an image will not degrade its quality. Where possible PNG should be the file type of choice.

Material adapted from SAMM – Students Achieving with Multimedia Class

A comparison of 8 KHz mono audio formats

8KHz mono audio formats

Audio format

16-bit PCM

G.711 mu-law

32Kbps MPEG-1

IMA/DVI ADPCM

GSM 06.10

InterWave VSC112

TrueSpeech 8.5

RealAudio v1.0

ToolVox for the Web

File extension

.wav or .aiff

.au

.mpa or .mp2

.wav

.gsm

.vmf

.wav

.ra

.vox

Data rate

128Kbps

64Kbps

32Kbps

32Kbps

13.2Kbps

11.2Kbps

8.5Kbps

8Kbps

2.4Kbps

File size per minute

960K

480K

240K

240K

96K

82K

62K

59K

18K

Compression factor

1:1

2:1

4:1

4:1

10:1

11:1

15:1

16:1

53:1

Sound quality

5 (sample)

4 (sample)

4 (sample)

3 (sample)

2 (sample)

2 (sample)

2 (sample)

1 (sample)

0-3 (sample)

Relative compression speed

N/A

10

(not tested)

1.2

0.75

3

0.5

0.2

0.25

Windows player

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Mac player

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Yes

Unix player

Yes

Yes

Yes

Some

Yes

No

No

only v2.0

Promised

Supports higher sample rates

Yes

Yes, but rarely used

Yes

Yes

No

Yes

No

in v2.0

in other products

Streaming playback file

None

None

None

None

.gsd

.vmd

.tsp

.ram

None

Credits

None

None

None

None

None

In .vmd file

None

In .ra file

None

Monday, May 01, 2006

You must respect the rules of the country you are living in.

Today May/01/2006 many people are protesting the new immigration laws and mostly the rules concerning the illegal immigrants. It is true that everything big thing has began from very low level, just like the U.S. and other country's economy; their economy is mostly dependent on thing like construction, mechanics, and other jobs that require only a low level of education; and it is also true that some of those workers with basic level of education are illegal immigrants. However those refugees are illegal because they are in a country without any legal document or their country has political issues whit the country they illegally immigrated in, and nobody forced them against their will to come to that country. So why do you snick in a foreign country work as illegal immigrant and earn low income and instead of immigrating the good (legal) way; with legal paper. That way you can help others com to your new country too. I don't thing sneaker should have the right to say or vote in the new country and should complain no matter what the concern is. You should be treated with the respect of which you tread other or a country in this matter. Also if you don't like the rules in your new home (country) then what the hell are you doing here, why you don’t just go back to where you came from. You have no right to turn any country upside down just because you don't like it (or because the rules are tough, they are tough because you are ILLIGAL). Today many people are trying to turn United Stated of America on of the most generous and intelligent countries in the world in to Mexico or Cuba or other country. Your are the one that came in without being forced against your will, therefore you MUST respect the rule for better or for worst, other wise go back to where you came from, and shut the hell your mouth.

Anna Nicole Smith finally wins!!!

Born in Houston, Texas as Vickie Lynn Hogan on Nveomber 28, 1967, better known as Anna Nicole Smith. And on Monday May 1st 2006 after lengthy fight with the U.S. court system and E. Pierce Marshall, Smith got her justice. It is true that it was a type of prostitution (when she meried J. Howard Marshall, she was 26 an he 89) and whe all know girls or fimales don't just maried an older guy especially when the age difference is 63 years whitout a reason (and love as a reason in such age difference should be called mirracle, I thing) and what a better reason than money or just a few million bucks (pocket change). Also I believe it is true that she barelly live with him while they were married. However they were married and in split no matter what kind both sides should get something, at least that is what the law sais (my opinion is screw the other side- I get 100% you get nada (zero, nothing, air, dream on, and so on), but the law is the big stack of paper that controls al of us, all the countries, and I believe the entire universe. My point is that prostitution or not by law Vickie Lynn Hogan or Anna Nicole Smith deserves her peace of the pie.