1. Different HTML
Enhancements
Quarter 2 Lesson 2

2. Image File Types
• JPEG
• GIF
• PNG
• BMP

3. JPEG
• Joint Photographic Experts Group
• Filename Extension:
.jpg
• the most common image format used by digital
cameras and other photographic image capture
devices;
• the most common format for storing and
transmitting photographic images on the World
Wide Web.

4. JPEG Example

5. GIF
• Graphics Interchange Format
• General Image Format
• Filename Extension:
.gif
• supports 8 bits per pixel, allowing a single image to
reference a palette of up to 256 distinct colors chosen
from the 24-bit RGB color space;
• supports animations and allows a separate palette of
256 colors for each frame.

6. GIF Example

7. JPEG vs GIF

8. PNG
• Portable Network Graphics
• Filename Extension:
.png
• supports palette-based (palettes of 24-bit RGB
colors), greyscale, RGB, or RGBA images;
• designed for transferring images on the Internet,
not professional graphics, and so does not support
other color spaces.

9. PNG Example

10. BMP
• Bitmap
• Filename Extension:
.bmp
• Images from Windows Paint Application.

11. Audio File Types
• MP3
• WMA
• WAV
• MIDI
• CDA

12. MP3
• MPEG Audio Layer 3
• What is MPEG?
Moving Picture Experts Group
• Filename Extension:
.mp3
• a patented digital audio encoding format using a form of
lossy data compression;
• a common audio format for consumer audio storage, as well
as a de facto standard of digital audio compression for the
transfer and playback of music on digital audio players.

13. WMA
• Windows Media Audio
• Filename Extension:
.wma
• an audio data compression technology developed
by Microsoft;

14. WAV
• WAVE or WAV
• Waveform Audio File Format
• Filename Extension:
.wav
• a Microsoft and IBM audio file format standard for
storing an audio bitstream on PCs;
• a method for storing data in “chunks”.

15. MIDI
• Musical Instrument Digital Interface
• Filename Extension:
.mid
• an industry-standard protocol that enables electronic
musical instruments (synthesizers, drum machines),
computers and other electronic equipment (MIDI
controllers, sound cards, samplers) to communicate
and synchronize with each other.

16. CDA
• CD(Compact Disc) Audio Track
• Filename Extension:
.cda
• a small (44 bytes) file generated by Microsoft
Windows for each track on an audio CD;
• The file contains indexing information that
programs can use to play or rip the disc.

17. Video Files
1. WMV
2. 3GP
3. AVI
4. MP4
5. FLV
6. MOV
7. SWF
8. ASF

18. WMV
• Windows Media Video
• Filename Extension:
.wmv
– it is developed by Microsoft;
– it was originally designed for internet
streaming applications because it is
the most common format on the net.

19. 3GP
• Third Generation Partnership
Project (for 3G Phones)
• Filename Extension:
.3gp
both an audio and video format that was designed
as a multimedia format for transmitting audio and
video files between 3G cell phones and the
internet.

20. AVI
• Audio Video Interleave
• Filename Extension:
.avi
it is a multimedia container format which
divides the file’s data into blocks or
“chunks” like the DVD video format.

21. MP4
• MPEG-4 Part 14
• Filename Extension:
.mp4
most commonly used to store digital video
and digital audio streams, especially
those defined by MPEG, but can also be
used to store other data such as
subtitles and still images.

22. FLV
• Flash Video
• Filename Extension:
.flv
a container file format used to
deliver video over the Internet
using Adobe Flash Player.

23. MOV
• filename extension for the
Quicktime Multimedia File Format
• Filename Extension:
.mov
QuickTime File Format (QTFF) is a
computer file format used natively by the
QuickTime application.

24. SWF
• Shockwave Flash
• Filename Extension:
.swf
a Flash movie developed by
Macromedia.

25. ASF
• Advanced Systems Format
• Advanced Streaming Format
• Filename Extension:
.asf
It is intended for streaming and is used to
support playback from digital media and HTTP
servers, and to support storage devices such as
hard disks.