Linear Uncompressed Video Archiving on High Performance Computer Tapes

1
Linear Uncompressed Video Archiving on High
Performance Computer Tapes

• Franz Pavuza
• Julia Ahamer

Phonogrammarchiv / Austrian Academy of Sciences
2
(No Transcript)
3
Archiving Strategy

• Analog Tradition
• Digital Era
• making way for ...
• Content Preservation

4
Digital Archiving

• Digital Sources
• unaltered native format
• Analog Sources
• uncompressed recording

5
Compression Topics

• Experience from audio (mp3)
• Inherent artefacts
• Examples from practice

6
Expenses

• Infrastructure
• Technical Equipment
• Staff

7
Storage Media

• Optical Disks
• Magnetic Disks
• Magnetic Tapes

8
Pros ...

• Optical Disks
• access, cost, acceptance
• Magnetic Disks
• access, storage capacity
• Magnetic Tape
• durability, storage capacity, handling
  experience

9
... and Cons

• Optical Disks stability?
• Magnetic Disks life span? cost?
• Magnetic Tape access?

10
Specific Use of Media

• Optical Disks
• browsing copies
• Hard Disks
• selected footage
• Magnetic Tapes
• long-term storage

11
Tape Format Issues

• D1 (D5) uncompressed, but ...
• gt systems costly
• gt format proprietary
• gt metadata?

12
Tape Format Issues

• LTO Tape
• from IT sector
• backup tape -gt high reliability
• high transfer speed
• guaranteed compatibility
• reasonable cost
• status control?

13
Ideal File Format

• Independent of platform
• operating system
• IT-based
• Supporting metadata
• Standardised by SMPTE and EBU
• Widely accepted

14
MXF
" ... Filewrapper and packaging format capable
of encapsulating video, audio, single pictures
etc., plus associated metadata. "
15
Video Archiving System
Capture Station
Server
Player
Internet
Camcorder
LTO Deck
Browsing Station
16
(No Transcript)
17
(No Transcript)
18
(No Transcript)
19
Cost Examples

• 20.000,- used analog players
• 17.000,- digital players
• 75.000,- capture stations (2)
• 15.000,-/y for tape
• 40.000,- server
• 6.000,- browsing station

20
Workflow

• Audio archiving tradition for video
• Preserving the signal as is
• Documenting status
• Annotating searchable metadata

21
Workflow

• Video archiving specifics
• 2 x realtime for optional rendering
• 1,5 x realtime for LTO transfer
• time for author and browsing copies
• keyframes

22
Next Steps

• Internal standard test routines
• Optimising U-Matic playback
• LTO tape status control
• Converter upgrade

23
Possible Enhancements

• Upgrade to High Definition
• Dedicated archiving software
• Data extraction and restauration

24
Thank you for your attention!