![]() Archivists need to be able to trust that the digitized files are up to a certain level of quality, and have quantifiable data to prove it. QCTools can help archivists understand what is wrong with certain files and then take steps to correct or explain these errors. Moving image archives that collect digital video may receive digitized content with undiagnosed playback problems and errors. Archivists, librarians, and conservators.Potential users of the quality control tools include specialists and non-specialists: Who can benefit from using QCTools (and how)? QCTools incorporates archival standards and best practices for reformatting and capturing metadata that enables the long-term preservation of and access to the original artifact, the digital object, and the associated catalog record. The goal of the project is to cut down the time it takes to perform high-quality video preservation and direct time towards preservation issues that are solvable - for example, identifying tapes that would benefit from a second transfer, saving not only the precious time of preservationists and institutional resources, but giving collections a necessary advantage in the bigger race against time to preserve their significant cultural artifacts. 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 to help users detect corruptions or compromises in the results of analog video digitization or in born-digital video. Are there additional resources that may be useful to me?.How can I integrate the QCTools export feature into my workflow?.What video formats does QCTools accept?.View the Project on GitHub bavc/qctools Getting Started with QCTools ![]() QCTools is funded by the National Endowment for the Humanities and the Knight Foundation, and is developed by the Bay Area Video Coalition. ![]() Although I suppose it's also possible my original test video is just malformed somehow.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. It would play the video at about 10x speed, but the audio at the normal rate. QCtools would actually take my file and it mostly worked, but my video would not playback correctly inside the qctools gui. I think your script will get me much closer. Obviously, all that filtering was me mostly guessing based on the ffprobe output of a genuine qctools.mkv file. This would save many hours of time once applied to hundreds or even thousands of videos. Muxing the xml.gz and the thumbnails together takes only a second or two. Even though that would still be a total of two lines, the big video file is only being decoded one time for all of my conversion and qctools work. I think the first and second commands could also be combined into one line by splitting the video another time and piping that directly into ffprobe. However, in reality, I would add other, non-qctools related outputs. In this instance, I'm not doing any other conversion with ffmpeg. Ffprobe -f lavfi -i "movie=original.avi:s=v+a,signalstats=stat=tout+vrep+brng,cropdetect=reset=1:round=1,idet=half_life=1,deflicker=bypass=1,split field=top field=bottom,split psnr ssim ebur128=metadata=1,aformat=sample_fmts=flt|fltp,astats=metadata=1:reset=1:length=0.4" -show_frames -show_versions -of xml=x=1:q=1 -noprivate | gzip > .gzįfmpeg -i original.avi -filter_complex "split=2 scale=72:-1 setparams=range=pc:color_primaries=bt470bg scale format=rgb24 crop=1:ih:iw/2:0 tile=layout=512x1 setsar=1/1" -map '' -metadata:s:v:0 title="Frame Thumbnails" -pix_fmt yuvj420p -c:v mjpeg -map '' -metadata:s:v:1 title="Tiled Center Column" -metadata:s:v:1 FILTERCHAIN='scale,format=rgb24,crop=1:ih:iw/2:0,tile=layout=512x1,setsar=1/1' -metadata:s:v:1 VERSION="1.0" -metadata:s:v:1 YAXIS='Bottom:Top' -metadata:s:v:1 LEGEND="TiledĬenter Column" -metadata:s:v:1 PANEL_TYPE="video" -pix_fmt yuvj420p -time_base "100/2997" -r "2997/100" -c:v mjpeg įfmpeg -i -attach .gz -metadata:s:2 mimetype="application/x-gzip" -map 0:0 -c:v copy -map 0:1 -c:v copy
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |