Longview

1
Overview Presentation November 8th, 2005
Ben Jeavons John Lansing Luke Miller Gabe
Westmass Wesley Willett
2
Longview team

• John Lansing
• Problem, Solution, Example uses
• Ben Jeavons
• Conceptual Diagram, Requirements
• Wes Willett
• UI
• Luke Miller
• System Architecture
• Gabe Westmaas
• Prototype

Gabe Westmaas
3
Longview sponsor

• Electric Rain
• John Soucie Technical Lead
• Mike Soucie - CEO

Gabe Westmaas
4
Problem - Background

• What is screen recording software?
• Software that allows a user to create, edit, and
  play screen captures.
• What is a screen capture?
• Capturing the screen over an extended period of
  time to form a video file. (Wikipedia)
• Often used to demonstrate a program, or to teach
  somebody how to use a program.
• Current screen recording applications
• Macromedia Captivate
• !Quick Screen Recorder
• Camtasia Studio

John Lansing
5
Problem

• Current solutions use bitmap recording
• Creates large file sizes
• Lack of scalability in playback size
• Slow and jumpy frame rates

John Lansing
6
Solution - Background

• Microsofts new presentation foundation, WinFX
• Uses XAML to represent user interface (UI)
• Vector graphics
• Will be used prevalently in Microsofts upcoming
  Windows Vista operating system

John Lansing
7
Solution

• Longview will leverage new WinFX features to
  address these problems
• File size
• Capture XAML instead of bitmaps
• Small text files versus images
• Scalability
• Vector graphics will enable playback to be scaled
• Frame rates
• Video will appear just as if the program was
  actually running

John Lansing
8
Example Uses

• Demonstrations
• Can show off features of a new product in a small
  and convenient movie file
• Shows more than just screenshots
• Tutorials
• Software providers can include tutorial videos
  with their product to teach the user how to use
  their program

John Lansing
9
Longview Conceptual Diagram
Ben Jeavons
10
Environmental Requirements

• Software Environment
• C with Visual Studio 2005 beta
• User Experience in XAML
• WinFX SDK beta
• Runtime Environment
• Run on WinFX beta
• Windows XP and Windows Vista
• Record any applications under WinFX

Ben Jeavons
11
Environmental Requirements

• Hardware Environment
• Minimum Hardware Requirements
• 512 megabytes of RAM
• A dedicated graphics card with DirectX 9.0
  support
• A modern Intel Pentium- or AMD Athlon-based PC
• User Input
• Mouse/Pointing Device
• Keyboard
• Microphone
• Output Devices
• Monitor/Display Device
• Speakers

Ben Jeavons
12
Functional Requirements

• Recording
• Controls such as Record, Pause, Stop
• Selective recording options
• Editing Features
• Add annotations
• Arrange portions of recording
• Playback
• Controls such as Play, Pause, Stop

Ben Jeavons
13
Longview
Luke Miller
14
Longview User Interface

• Interfaces for each of the applications three
  main functions
• Recording
• Playback
• Editing
• Designed in accordance with Microsofts Windows
  Vista User Experience (UX) Guidelines.

Wes Willett
15
UI Welcome Task Dialog

• Directs users to the correct interface.

Wes Willett
16
UI Recording Task Dialog

• Allows users to choose what to record.
• Provides hotkey and recording options.
• Application minimizes to the system tray when
  recording begins.

Wes Willett
17
UI Paused Task Dialog

• Displayed when recording is stopped.
• Allows users to stop recording or change
  recording options before resuming.

Wes Willett
18
UI Longview Player

• Follows Windows conventions
• (modeled after Windows Media Player)
• Standard playback controls
• Play, pause, etc.
• Specialized controls
• Zoom, Pan

Wes Willett
19
UI Longview Editor

• Used when editing recorded content.
• Major components
• Timeline
• Navigation and editing of content keyframes
• Editing toolbar
• Annotations
• Highlights
• Transitions

Wes Willett
20
Prototype

• Successes
• Simple recorder and player
• Problems
• Acquiring logical trees of other applications
• Demonstration

Gabe Westmaas