#REDIRECT [[QCTools]]

QCTools

2018-09-24T13:16:30Z

Ablewer: Ablewer moved page Qctools to QCTools: correct name

{{Infobox_tool
|purpose=Analyse digital video and detect corruption/artefacts
|image=QCTools_SquareLogo.jpg
|homepage=http://www.bavc.org/qctools
|license=GPLv3
|platforms=Windows, Mac & Ubuntu
}}


[[Category:Quality Assurance]]


[[Category:Video]]

== Description ==

Analyse digitized analog video files and detect corruption. A related resource is the [http://bavc.github.io/avaa AV Artifact Atlas].

Quoted from the [https://raw.githubusercontent.com/bavc/qctools/master/README.md README.md]:
“

QCTools (Quality Control Tools for Video Preservation) is a free and open source software tool that helps users analyze and understand their digitized video files through use of audiovisual analytics and filtering. QCTools is funded by the National Endowment for the Humanities and the Knight Foundation, and developed by the Bay Area Video Coalition.

Our (in progress) wiki is starting to develop [https://github.com/bavc/qctools/wiki here].

===general info===
QCTools allows archivists, curators, preservationists and other moving image professionals to identify, filter, and asssess all manner of video errors and anomalies. The tool is flexible, providing a variety of viewing options, as well the ability to create and export reports (gzip, or .gz files, formatted according to the ffprobe xml standard).

For more information about the project, or to download the latest Mac/Winddows/Ubuntu release, please visit [http://www.bavc.org/qctools BAVC's QCTools homepage].

An overview of QCTools and how to use it can be found [http://htmlpreview.github.io/?https://github.com/bavc/qctools/blob/master/Source/Resource/Help/How%20To%20Use/How%20To%20Use.html here].

===installation===
Go to http://bavc.org/qctools or [https://github.com/bavc/qctools/releases Releases] and download QCTools for your operating system. Initiate the install by double-clicking the icon, and follow the steps. New releases of QCTools will be periodically available at the QCTools Project website.

===getting started===
Currently QCTools accepts a variety of video formats, including *.avi, *.mkv, *.mov, and *.mp4, as well as a diverse selection of codecs. By relying upon ffmpeg's libavcodec and libformat libraries, QCTools can support a wide variety of digital audiovisual formats.

===graph descriptions===
QCTools offers a variety of [http://htmlpreview.github.io/?https://github.com/bavc/qctools/blob/master/Source/Resource/Help/Filter%20Descriptions/Filter%20Descriptions.html Graphing Options] including: YUV Values, Temporal Outliers (TOUT), Vertical Line Repetitions (VREP), Broadcast Range (BRNG), Crop Width and Height (CropW and CropH), and Peak Signal to Noise Ratio (PSNRf) and Mean Square Error (MSEf) differences per frame.

===playback filters===
The QCTools preview window is intended as an analytical playback environent that allows the user to review video through multiple filters simultaneously. The playback window includes two viewing windows which may be set to different combinations of [http://htmlpreview.github.io/?https://github.com/bavc/qctools/blob/master/Source/Resource/Help/Playback%20Filters/Playback%20Filters.html filters].

===reading a qctools document===
The [http://htmlpreview.github.io/?https://github.com/bavc/qctools/blob/master/Source/Resource/Help/Data%20Format/Data%20Format.html QCTools document] (built upon FFprobe's [https://raw.githubusercontent.com/FFmpeg/FFmpeg/master/doc/ffprobe.xsd xml expression]), is designed to be self-descriptive, storing analytical metadata about video and audio frames.

Incorporating a set of open source libraries developed under the ffmpeg project, the QCTools document offers metadata values derived from four evaluative filters: [https://www.ffmpeg.org/ffmpeg-filters.html#signalstats signalstats], [https://www.ffmpeg.org/ffmpeg-filters.html#toc-cropdetect cropdetect], [https://www.ffmpeg.org/ffmpeg-filters.html#psnr psnr], and [https://www.ffmpeg.org/ffmpeg-filters.html#ebur128 ebur128].

===a/v artifact atlas===
In conjunction with using QCTools, consider using the [http://avaa.bavc.org/artifactatlas/index.php/A/V_Artifact_Atlas A/V Artifacts Atlas] to gain further clarification and appropriate descriptive terminology for any anomalies or errors you might encounter in your video content. Users are invited to contribute unidentified errors they come across to the atlas.

===license===
QCTools deliverable is licensed under a GPLv3 License.
QCTools GUI part and FFmpeg statistics filter are licensed under the 3-Clause BSD license.
This software uses libraries from the FFmpeg project under the GPLv3, Qt and Qwt libraries under the LGPLv2.1, OpenJPEG library under the 2-Clause BSD license. See our [http://htmlpreview.github.io/?https://github.com/bavc/qctools/blob/master/License.html License page] for more details.

"

== User Experiences ==


== Development Activity ==

All development activity is visible on GitHub: http://github.com/bavc/qctools/commits

=== Release Feed ===
Below the last 3 release feeds:
<rss max=3>https://github.com/bavc/qctools/releases.atom</rss>

=== Activity Feed ===
Below the last 5 commits:
<rss max=5>https://github.com/bavc/qctools/commits/master.atom</rss>


{{Infobox_tool_details
|ohloh_id=
}}

QCTools

2018-09-24T13:15:25Z

Ablewer: /* Description */ refine one-line description

Media conch

2018-09-24T13:11:08Z

Ablewer: Ablewer moved page Media conch to MediaConch: correct spelling of name

#REDIRECT [[MediaConch]]

2018-07-23T20:05:46Z

Ablewer: /* Activity Feed */ remove error