Video Images

Mike McIntireUniversity of New Hampshire

Containers and CodecsContainer format (digital)A container or wrapper format is a meta-file format whose specification describes how different data elements and metadata coexist in a computer file.Among the earliest cross-platform container formats were Distinguished Encoding Rules and the 1985 Interchange File Format. Containers are frequently used in multimedia applications.

Codec (digital)A codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal.[1][2][3][4] The word codec is a portmanteau of 'compressor-decompressor' or, more commonly, 'coder-decoder'. A codec (the program) should not be confused with a coding or compression format or standard – a format is a document (the standard), a way of storing data, while a codec is a program (an implementation) which can read or write such files. In practice "codec" is sometimes used loosely to refer to formats, however.

-wikipedia Pitfalls

Containers and Codecs

Container files like files saved in an avi format can be encoded in different ways such as dvix, xvid, etc.

Pitfalls

Very Common File Types• 3g2, 3gp – Commonly from Cellphones

• avi, mov, mp4, mpg, wmv – Variety of programs & devices

• flv, swf – Flash video file

Pitfalls

Common Codecs

• divx• xvid• h264• avc

Pitfalls

Copyright

Pitfalls

• Copyright & IP• Fair Use• In class versus streaming• How much can you use, if any?

“Fix it in post”

Pitfalls

• Bad Audio• Shaking Camera• Bad angles• Forgetting shots• etc

Assigning Rich Media

Planning

• Course objectives for the assignment?• Outline what students will learn?• Will they work in groups?• How will you evaluate?• What resources are there for your students?• How will you collect the assignment?

Creating Rich Media

Planning

• Outline• Story board• Shots and Media needed• Gather & Capture• Edit• Export• Caption

Captioning

Sharing

• Closed– Closed captioning is the process of displaying text on

a television, video screen or other visual display to provide additional or interpretive information to individuals who wish to access it. Closed captions typically show a transcription of the audio portion of a program as it occurs (either verbatim or in edited form), sometimes including non-speech elements.

Captioning

Sharing

• Open– Open Captions are Captions that are permanently

displayed and are not an optional feature like Closed Captions. Captions are textual representations of audio. It suits the hearing impaired by not just displaying dialog but also describing other sounds to be heard from the audio.

Captioning

Sharing

• Open– Open Captions are Captions that are permanently

displayed and are not an optional feature like Closed Captions. Captions are textual representations of audio. It suits the hearing impaired by not just displaying dialog but also describing other sounds to be heard from the audio.

Delivery

Sharing

• Streaming– On a server, viewed anywhere online

• DVD– Viewable on DVD player or computer

• File– On thumb drive, data DVD or CD, portable drive,

etc

Create a 2’ 15” video

Video will follow general format described in handout

Project is due at Friday 9 a.m.

On Thursday…

A packet with instructions

Recording equipment

A cohort leader

Your imagination

Resources:

Planning and Story Board

10:30 – 11:30Capture

11:30 – 3:30*Edit & Export

3:30 – 5:30

Timeline:

*12:15 – 1:45 lunch & speaker

Have your camera ready!

Put in your SD cards.

Make sure they’re charged.

Use them at the water park!

Homework: