Video logging
Encyclopedia
Video logging is a process in which video
footage is watched and labeled according to its content.
, it can be impractical to remember exactly where each shot is on each source tape or source file. Finding a particular source shot by searching through hours of video during editing can be time consuming, as well as tie up expensive editing equipment and editors' time.
A solution widely employed in the professional industry is to log the content prior to editing. Loggers go through the source video material, labeling it according to its contents with metadata
. This data is then available during editing, making the editing more efficient.
Software based logging systems allow clip lists to be imported directly into computer based editing systems.
Traditionally compliance recordings were made to long-play video-cassette decks, using three 8-hour tapes per day per channel, however the unreliability of moving tapes & heads, along with the move to centralcasting
and distributed playback requirements has made this strategy virtually impossible to maintain in the current operational climate.
Larger multi-channel broadcasters with hundreds of feeds running simultaneously could potentially use several thousand VHS decks in rotation, along with the equipment racking, tape storage space and staff to manipulate those assets - and tens of thousands of tapes required to span the compliance retention period.
Developments since the early 2000s have shifted to multi-channel server-based rich-media logging, with a few brave souls using domestic PVR software to achieve the basic functionality at a reduced cost. Most systems also provide data sync to broadcast automation systems, as well as checking basic signal status, and event logging for review of non program related events which may have been visible on air.
In addition to logging to disk, some packages also provide live streaming for internal use, or to be repurposed to external web / news sites.
A variety of disk-based compliance logging packages suitable for a range of customer applications are available - each employing a number of proprietary methods and technologies.
Video
Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion.- History :...
footage is watched and labeled according to its content.
Logging in post-production
If a video has a high shooting ratioShooting ratio
The shooting ratio in filmmaking and television production is the ratio between the total duration of its footage shot and that which results from its final final cut....
, it can be impractical to remember exactly where each shot is on each source tape or source file. Finding a particular source shot by searching through hours of video during editing can be time consuming, as well as tie up expensive editing equipment and editors' time.
A solution widely employed in the professional industry is to log the content prior to editing. Loggers go through the source video material, labeling it according to its contents with metadata
Metadata
The term metadata is an ambiguous term which is used for two fundamentally different concepts . Although the expression "data about data" is often used, it does not apply to both in the same way. Structural metadata, the design and specification of data structures, cannot be about data, because at...
. This data is then available during editing, making the editing more efficient.
Software based logging systems allow clip lists to be imported directly into computer based editing systems.
Broadcast & compliance logging
Free-to-Air and Subscription broadcasters often have a statutory requirement to keep a record of all programs that are emitted. This may be for legal or other compliance purposes - or simply good commercial sense to 'have proof' of events in event of a contrary claim.Traditionally compliance recordings were made to long-play video-cassette decks, using three 8-hour tapes per day per channel, however the unreliability of moving tapes & heads, along with the move to centralcasting
Centralcasting
In terrestrial radio and television broadcasting, centralcasting refers to the use of systems automation by which customised signals for broadcast by multiple individual stations may be created at one central facility.- :...
and distributed playback requirements has made this strategy virtually impossible to maintain in the current operational climate.
Larger multi-channel broadcasters with hundreds of feeds running simultaneously could potentially use several thousand VHS decks in rotation, along with the equipment racking, tape storage space and staff to manipulate those assets - and tens of thousands of tapes required to span the compliance retention period.
Developments since the early 2000s have shifted to multi-channel server-based rich-media logging, with a few brave souls using domestic PVR software to achieve the basic functionality at a reduced cost. Most systems also provide data sync to broadcast automation systems, as well as checking basic signal status, and event logging for review of non program related events which may have been visible on air.
In addition to logging to disk, some packages also provide live streaming for internal use, or to be repurposed to external web / news sites.
A variety of disk-based compliance logging packages suitable for a range of customer applications are available - each employing a number of proprietary methods and technologies.
See also
- AxonAxonAn axon is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma....
- Footage Recorder
- Mediaproxy
- VoliconVoliconVolicon is a provider of media monitoring, recording and archiving services. They have developed systems that allow multiple video channels to be monitored and logged and provide these services to broadcasters, cable programmers and to corporations and governments...
- Ideas Unlimited
- VideoPhillhttp://www.videophill.com
- Actus Digitalhttp://www.actusdigital.com
- artec technologieshttp://www.artec.de/en/page/home.html