“Fraps”的意思、由来-开放百科全书

Fraps (derived from frames per second) is a benchmarking, screen capture and screen recording utility for Windows developed by Beepa. It can capture from software that uses DirectX and OpenGL, such as PC games.

Operation

Fraps is proprietary and commercial software, but it is free to use for frame rate display and benchmarking, and free to use with limitations for video capture (30 second time limit, watermark) and screen capture (BMP format only). Because of the way it captures the screen contents, Fraps needs to run with administrative privileges.{{Citation needed|date = February 2014}}

The frametimes benchmark feature (logging of individual frame render times) gained attention in 2013 on computer review sites in debate about micro stuttering in games.^[2]

On Windows Vista and Windows 7, the desktop can be captured if Windows Aero is enabled. Windows 8 game capture works, but not desktop capture as of version 3.5.99.^[3]

Fraps records video at high resolution if the computer is sufficiently powerful. The maximum supported resolution is currently 7680×4800.^[4]

Fraps uses a proprietary codec. Therefore, playing Fraps video output requires Fraps or ffdshow to be installed. Compression is relatively low and the resulting file sizes are relatively large: A two-minutes-long screencast of a full HD screen (1920×1080) may take up 3.95 GiB on disk.^[5] There is an option to encode the RGB value of every pixel, but the default is to use a YUV scheme for better compression.^[6] The color space used is Rec. 709, full range.^[7]

History

Since version 3.5.0, Fraps has the ability to store the entire session in one huge video file. Prior to this update, all Fraps footage was split at 4GB and the split files would have to be joined at the transcoding stage. However, for backwards compatibility and limiting damage in case of a crash, there is still an option which allows users to use the old recording method of splitting videos.^[8] Since version 3.0, Fraps supports DirectX 11 and Windows 7. Since version 3.5.0, the minimum system requirements has changed. Fraps requires a CPU with SSE2 instructions (Pentium 4 and later) and Windows XP or later. Fraps has not been updated since February 26, 2013, and the trademark on Fraps expired on May 19, 2017,^[9] leaving the question open whether Fraps has been abandoned.

Reception

In 2012, Jim Norris from pcadvisor.co.uk praised Fraps for its featureset and usability, by stating: "Video capture is similarly option-generous with hot key functions, capture rates and sound settings that are all easy to understand and set". He also criticized the lack of customer support: "Beepa's customer support seems nonexistent. Several queries via their provided web forms (...) remained unanswered, and I was never able to contact anyone from the company despite repeated attempts to do so". But this, according to Jim Norris, seems in stark contrast to "the quality of the software and the speedy pace of its development." He concluded by praising the featureset of the free version: "the free version is quite feature generous and will suit the needs of almost every user." and gave the software 3.5 out of 5 stars.^[10]

See also

References

1. ^{{cite web|url=http://www.fraps.com/news.php|title=FRAPS Changelog}}
2. ^{{cite web |url=http://techreport.com/blog/24133/as-the-second-turns-the-web-digests-our-game-testing-methods |title=As the second turns: the web digests our game testing methods |accessdate=19 May 2013}}
3. ^{{cite web |url=http://frapsforum.com/threads/record-windows-8-desktop.2038/ |title=Record Windows 8 desktop |date=27 April 2012}}
4. ^{{cite web |url=http://www.fraps.com/faq.php#videocap |title=Fraps FAQ |accessdate=8 June 2012}}
5. ^{{cite web |url=http://frapsforum.com/resources/why-should-i-encode-my-videos.6/ |title=Why should I encode my videos? |date=21 January 2012}}
6. ^{{cite web |url=http://wiki.multimedia.cx/index.php?title=Fraps |title=Fraps |accessdate=19 May 2013}}
7. ^{{cite web |url=http://forum.doom9.org/showthread.php?p=1556914#post1556914 |title=Fraps discussion (quoted email from Fraps developer) |accessdate=19 May 2013}}
8. ^{{cite web |url=http://frapsforum.com/threads/fraps-3-5-0-released.1226/ |title=Fraps 3.5.0 Released! |date=27 April 2012}}
9. ^{{cite web |url=http://tmsearch.uspto.gov/bin/showfield?f=doc&state=4802:kxl4wz.2.7 |title=Trademark Electronic Search System (TESS) |date=19 August 2018}}
10. ^{{cite web |url=http://www.pcadvisor.co.uk/reviews/software/3331211/fraps-review/ |first = Jim |last = Norris |accessdate = 20 July 2014 |title = Fraps review from pcadvisor.co.uk}}

Operation

History

Reception

See also

References

External links