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• Anomalie #3217 (Nouveau) : Caractères spéciaux d’expression régulière présents dans une chaîne de ...

  22 mai 2014, par Pascal Verrier

  Bonjour,

  J’ai une boucle au sein de l’affichage d’un forum qui permet d’afficher les autres posts similaires ; pour cela, l’argument recherche est renseigné avec le titre du forum en cours d’affichage.

  Cela fonctionne bien sur la plupart des pages sauf sur un forum ayant le titre suivant : Sortie du kit compatible SPIP 3 ??

  J’ai une erreur MySQL 1139 :
  

  Got error ’repetition-operator operand invalid’ from regexp
  SELECT t.id_forum, t.titre, t.texte, t.auteur, t.email_auteur, t.nom_site, t.url_site FROM spip_forum AS t WHERE t.titre REGEXP ’Sortie du kit compatible SPIP 3 ??|Sortie|compatible|SPIP’ OR ...
  

  Ce sont les ?? qui coincent car manifestament ils sont interprétés en tant que métacaractères dans la regex, n’ayant pas été échappés.

  J’ai fait un autre essai en mettant d’autres opérateurs de regex : Sortie kit[0-9]* compatib(ilité|le) SPIP 3 ??, qui confirme ce que je pensais :
  

  Erreur SQL 1139
  Got error ’repetition-operator operand invalid’ from regexp
  SELECT ... WHERE t.titre REGEXP ’Sortie kit[0-9]* compatib(ilite|le) SPIP 3 ??|Sortie|kit[0-9]*|compatib(ilite|le)|SPIP’ OR ...
  

  à savoir la chaîne de recherche n’est pas prétraitée, et les caractères spéciaux sont repris tels quels, d’où le plantage MySQL.

  Je propose donc les corrections ci-joint pour ecrire/inc/rechercher.php (commentaires avec pverrier).

• Museum of Multimedia Software, Part 1

  14 août 2010, par Multimedia Mike — Software Museum

  Many years ago, I found a boneyard of old software, much of it related to the creation and processing of multimedia. I was permitted to liberate anything of my choosing from this cache. This is the same pile where I found this Apple QuickTime format spec as well as this perfect form factor floppy disc box. So I have been sitting on the stuff for awhile.

  I thought I might get the chance to study it a bit more closely one day. But now I’m interested in getting rid of it. Before I do, it’s more or less traditional for me to photograph it and post it on one blog or another. Also, if you know of any software collection groups who would be interested in taking this stuff off my hands, do let me know.

  As usual, click a picture for a much larger image.

  Paracomp FilmMaker
  This is easily the most distinctive piece in this collection and it’s easy to see why— the software is packaged in a film cannister. Still sealed, and I don’t have a good reason to open it now.

  
  
  

  "The Professional Animation/Presentation Program for the Macintosh." No copyright date on the packaging, though the front does mention a 1990 award. System requirements : Mac OS 6.0.5, 5 MB RAM, 32-bit QuickDraw, math coprocessor.

  Strata VideoShop
  Version 4.5 (and not for resale), still shrink-wrapped. "The Digital Video Editor for Creative Professionals."

  
  
  

  System requirements : PowerMac with 5 MB RAM (8 MB recommended), Mac OS 7.5.

  BeatWare e-Picture
  "The Professional’s Choice for Designing Animated Web Graphics." Claims a best of show award for 1999 MacWorld New York Expo.

  
  
  

  System requirements : PowerMac with Mac OS 8, 32MB RAM, 10 MB of HD space and a 256-color adapter.

  BeatWare eZ-Motion
  Another offering from BeatWare. "The fastest and easiest way to create animations and graphics for the Web."

  
  
  

  This one is for either Mac or Windows. 32 MB RAM and 25 MB HD space required. Works with Mac OS 8.5, 8.6, or 9.0, or Windows 98, NT, or 2000.

  Much more to come...

• FFMPEG HLS multiple Tracks not in sync

  2 juin 2020, par LordFenixNC

  This script works but the video doesnt sync with the sub or audio tracks. Could someone help fix this or Help me with a NEW script. I have been trying to figure this out with 0 luck and have had friends look at it. I even went to FFMPEG discord and FB asking for help from others who have posted scripts in the past. Seems no one has a interest in this. Please will someone help me.

  



  All I am trying to do is BULK encode MKVs to HLS with multiple resoutions in 10 sec segments and include all the Audio and SUb tracks that were originally in the MKV

  



  $files = Get-ChildItem ${Get-Location}
$loco = Get-Location
$p1 = Join-Path -Path $loco -ChildPath "/out"
New-Item -ItemType Directory -Force -Path $p1



function lnCodeTransform {
    param( $String )
    echo $String
    switch ($String)
    {
        "jpn" {"jp"}
        "eng" {"en"}
        "esp" {"es"}
        "fra" {"fr"}
        "deu" {"de"}
        default {$String}
    }
}


function lnNameTransform {
    param( $String )
    switch ($String)
    {
        "jpn" {"Japanese"}
        "eng" {"English"}
        "esp" {"Spanish"}
        "fra" {"French"}
        "deu" {"German"}
        default {$String}
    }
}


foreach ($f in $files){ 
    if ($f.Name -eq "out"){
        continue;
    }
    $p2 = Join-Path -Path $loco -ChildPath "/out/" | Join-Path -ChildPath $f
    New-Item -ItemType Directory -Force -Path $p2/audio
    New-Item -ItemType Directory -Force -Path $p2/video
    New-Item -ItemType Directory -Force -Path $p2/subtitle
    $sb = [System.Text.StringBuilder]::new();
    [void]$sb.AppendLine( '#EXTM3U' )
    [void]$sb.AppendLine( '#EXT-X-VERSION:3' )
    #[void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=800000,RESOLUTION=640x360' )
    #[void]$sb.AppendLine( '360p.m3u8' )


    New-Item -ItemType Directory -Force -Path $p2
    $resStr = ffprobe -v error -select_streams v:0 -show_entries stream=height -of csv=s=x:p=0 $f.FullName;
    $res = [convert]::ToInt32($resStr)
    $audioTracks = ffprobe $f.FullName -show_entries stream=index:stream_tags=language -select_streams a -of compact=p=0:nk=1 
    $audioTracks = $audioTracks.split("\n")
    foreach($audio in $audioTracks) {
        $ID = $audio.split("|")[0];
        $audioName = $audio.split("|")[1];
        ffmpeg -i $f.FullName -threads 0 -muxdelay 0 -y -map 0:$ID -async 1 -codec aac -f segment -segment_time 10 -segment_list_size 0 -segment_list out/$f/audio/audio_"$ID.m3u8" -segment_format mpegts out/$f/audio/"audio_$ID""_%d.ts"
        $name = lnNameTransform($audioName)
        $code = lnCodeTransform($audioName)
        [void]$sb.AppendLine( "#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=`"aac`",LANGUAGE=`"$code`",NAME=`"$name`",DEFAULT=NO,AUTOSELECT=NO,URI=`"audio/audio_$ID.m3u8`"" )
    }
    $subTracks = ffprobe $f.FullName -show_entries stream=index:stream_tags=language -select_streams s -of compact=p=0:nk=1 
    $subTracks = $subTracks.split("")
    foreach($subtitle in $subTracks) {
        $ID = $subtitle.split("|")[0];
        $subName = $subtitle.split("|")[1];
        ffmpeg -i $f.FullName -map 0:$ID -f segment -segment_time 10 -segment_list_size 0 -segment_list out/$f/subtitle/sub_"$subName.m3u8" -segment_format webvtt -scodec webvtt out/$f/subtitle/"sub_$subName%d.vtt"
        $name = lnNameTransform($subName)
        $code = lnCodeTransform($subName)
        [void]$sb.AppendLine( "#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID=`"subs`",LANGUAGE=`"$code`",NAME=`"$name`",FORCED=NO,AUTOSELECT=NO,URI=`"subtitle/sub_$subName.m3u8`"" )
    }

    [void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=1400000,CODECS="avc1.4d4015,mp4a.40.2",RESOLUTION=842x480,AUDIO="aac",SUBTITLES="subs"' )
    [void]$sb.AppendLine( 'video/480p.m3u8' )
    #ffmpeg -i $f.FullName -c:a copy -vf scale=w=640:h=360:force_original_aspect_ratio=decrease -c:a aac -ar 48000  -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod  -b:v 800k -maxrate 856k -bufsize 1200k -b:a 96k -hls_segment_filename out/$f/360p_%03d.ts out/$f/360p.m3u8 -vf scale=w=842:h=480:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -gpu 1 -c:v h264_amf -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod -b:v 1400k -maxrate 1498k -bufsize 2100k -b:a 128k -hls_segment_filename out/$f/480p_%03d.ts out/$f/480p.m3u8 -vf  scale=w=1280:h=720:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -gpu 1 -c:v h264_amf -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod -b:v 2800k -maxrate 2996k -bufsize 4200k -b:a 128k -hls_segment_filename out/$f/720p_%03d.ts out/$f/720p.m3u8 -vf  scale=w=1920:h=1080:force_original_aspect_ratio=decrease -c:a aac -ar 48000 -gpu 1 -c:v h264_amf -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 20 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -hls_playlist_type vod -b:v 5000k -maxrate 5350k -bufsize 7500k -b:a 192k -hls_segment_filename out/$f/1080p_%03d.ts out/$f/1080p.m3u8
    #ffmpeg -hwaccel auto -hwaccel_device 0 -i $f.FullName -c:v h264 -profile:v main -c:a aac -filter:v scale=360:640 -ar 48000  -rc cqp -qp_p 0 -qp_i 1 -profile:v main -crf 23 -sc_threshold 0 -g 48 -b:v 800k -maxrate 856k -bufsize 1200k -b:a 96k  -keyint_min 4 -start_number 0 -hls_time 10 -hls_playlist_type vod  -hls_list_size 0 -f hls -hls_segment_filename out/$f/360p_%03d.ts out/$f/360p.m3u8 
    #ffmpeg -hwaccel auto -hwaccel_device 0 -i $f.FullName -c:v h264 -profile:v main -c:a aac -filter:v scale=360:640 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/360p_%03d.ts out/$f/360p.m3u8 
    ffmpeg -i $f.FullName -c:v h264 -async 1 -profile:v main -y -filter:v scale="trunc(oh*a/2)*2:480" -map 0:v -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/video/480p_%03d.ts out/$f/video/480p.m3u8
    If($res -ge 720) {
        ffmpeg -i $f.FullName -c:v h264 -profile:v main -filter:v scale="trunc(oh*a/2)*2:720" -map 0:v -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/video/720p_%03d.ts out/$f/video/720p.m3u8
        [void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=2800000,CODECS="avc1.4d4015,mp4a.40.2",RESOLUTION=1280x720,AUDIO="aac",SUBTITLES="subs"' )
        [void]$sb.AppendLine( 'video/720p.m3u8' )
    }   
    If($res -ge 1080) {
        ffmpeg -i $f.FullName -c:v h264 -profile:v main -filter:v scale="trunc(oh*a/2)*2:1080" -map 0:v -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_segment_filename out/$f/video/1080p_%03d.ts out/$f/video/1080p.m3u8
        [void]$sb.AppendLine( '#EXT-X-STREAM-INF:BANDWIDTH=5000000,CODECS="avc1.4d4015,mp4a.40.2",RESOLUTION=1920x1080,AUDIO="aac",SUBTITLES="subs"' )
        [void]$sb.AppendLine( 'video/1080p.m3u8' )
    }

    $p3 = Join-Path -Path $p2 -ChildPath "/index.m3u8"
    #echo $index | Out-File -Encoding UTF8 -LiteralPath $p3
    echo $sb.ToString()
    [System.IO.File]::WriteAllLines($p3, $sb.ToString().Trim().replace("`r`n", "`n"))
}
$sw.Stop()
echo $sw.Elapsed ```