(Created page with "'''VidFUCK''' (short for '''Vid'''eo '''F'''rame '''U'''nfu'''CK''') was a process designed to fix frame duplication in early recordings of YSTV's live HD programmes. It is na...") |
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For [[hist:NaSTA 2015|NaSTA 2015]], ERN 2014 was chosen to be submitted as YSTV's Best Live entry. Given that it was an ambitious show, with both a program being produced in the G/046 studio and a separate OB covering the results (something which hadn't been done since 2008 - and hasn't been done since!), it was thought that it would be a prime candidate for an award win. However, after reviewing the recording, there were concerns that the jitteryness of the video would result in it being marked down by the judges. | For [[hist:NaSTA 2015|NaSTA 2015]], ERN 2014 was chosen to be submitted as YSTV's Best Live entry. Given that it was an ambitious show, with both a program being produced in the G/046 studio and a separate OB covering the results (something which hadn't been done since 2008 - and hasn't been done since!), it was thought that it would be a prime candidate for an award win. However, after reviewing the recording, there were concerns that the jitteryness of the video would result in it being marked down by the judges. | ||
It seemed that Vidsrv had suffered more than usual given the length of the show and heat being generated by people and servers alike in the control room | It seemed that Vidsrv had suffered more than usual given the length of the show and heat being generated by people and servers alike in the control room; resulting in not only in frequent frame duplication, but sometimes triplication! | ||
Hence, it was decided to try a way to 'fix' the recording by removing the duplicate frames, and then using interpolation to recreate the missing ones. [[hist:Sam Nicholson|Sam Nicholson]] took on this ambitious task, with the help of whoever was in the control room at the time. At some point the process was dubbed 'VidFUCK', so-named after the restoration technique [[w:VidFIRE|VidFIRE]]. | Hence, it was decided to try a way to 'fix' the recording by removing the duplicate frames, and then using interpolation to recreate the missing ones. [[hist:Sam Nicholson|Sam Nicholson]] took on this ambitious task, with the help of whoever was in the control room at the time. At some point the process was dubbed 'VidFUCK', so-named after the restoration technique [[w:VidFIRE|VidFIRE]]. | ||
==VidFUCK Process== | ==VidFUCK Process== | ||
*The first step was to break the original recording into a PNG image sequence. A simple ffmpeg command to do this was run on [[Computing:Encode Server|Encodesrv]]. | |||
*Once the PNG sequence had been generated, the duplicate frames needed to be found and removed. The best tools that could be found to do this were Windows-based, so the PNG sequence was copied over to an Edit PC. After a few trial runs to get the settings correct (ensuring that only true duplicates were matched), the application was left to chew through the entire sequence. | |||
*With the duplicates removed, the sequence needed to be recompiled, and the missing frames regenerated. Fortunately, when importing an image sequence into After Effects, it uses the image filenames to determine what order frames should appear in the sequence; leaving appropriate gaps where frames were missing. A free plugin [http://aescripts.com/pt_framerestorer/ pt_FrameRestorer] was then used to generate the missing frames through interpolation. | |||
*Audio from the original recording was readded to the sequence, which was then exported to a single video file ready for editing. | |||
==Issues== | ==Issues== | ||
*While the final VidFUCKed video was a huge improvement over the original recording, there were still problems where frames had been duplicated at the same time a cut. The resulting video had noticeable morphs where After Effects had attempted to interpolate between two completely different frames. This was worked around manually in the NaSTA edit by cutting out the affected frame(s). | *While the final VidFUCKed video was a huge improvement over the original recording, there were still problems where frames had been duplicated at the same time as a cut. The resulting video had noticeable morphs where After Effects had attempted to interpolate between two completely different frames. This was worked around manually in the NaSTA edit by cutting out the affected frame(s). | ||
*The process takes a '''long''' time, and tied up an Edit PC for multiple days. Doing this in the run up to NaSTA submissions was in hindsight ill-advised. | *The process takes a '''long''' time, and tied up an Edit PC for multiple days. Doing this in the run up to NaSTA submissions was in hindsight ill-advised. | ||
==Legacy== | ==Legacy== | ||
Despite the success of the technique, it was never used again. With current programs no longer having the same recording issues, and most of the affected recordings having been lost in Easter 2014 as part of [[hist:Drive Crash 2|Drive Crash 2]], the process was quickly forgotten about... until this page was created three years later. | Despite the success of the technique, it was never used again. With current programs no longer having the same recording issues, and most of the affected recordings having been lost in Easter 2014 as part of [[hist:Drive Crash 2|Drive Crash 2]], the process was quickly forgotten about... until this page was created three years later. | ||
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