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Valkaama DVD Cover Outside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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Valkaama DVD Label
4 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Image
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Valkaama DVD Cover Inside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
Autres articles (104)
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XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...) -
Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;
Sur d’autres sites (9782)
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How to remove black bars with ffmpeg ?
3 novembre 2022, par watch-thisI'm trying to remove black bars from a 637×478 video




here's what happens :


% ffmpeg -i sfu11.mp4 -vf "scale=ih*16/9:ih,scale=iw:-2,setsar=1" -y out.mp4 
ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
 built with Apple clang version 14.0.0 (clang-1400.0.29.102)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/5.1.2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sfu11.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2mp41
 encoder : Lavf57.83.100
 Duration: 01:02:49.37, start: 0.000000, bitrate: 15 kb/s
 Chapters:
 Chapter #0:0: start 0.000000, end 99.833000
 Metadata:
 title : Chapter 01
 Chapter #0:1: start 99.833000, end 701.818000
 Metadata:
 title : Chapter 02
 Chapter #0:2: start 701.818000, end 1213.746000
 Metadata:
 title : Chapter 03
 Chapter #0:3: start 1213.746000, end 1726.892000
 Metadata:
 title : Chapter 04
 Chapter #0:4: start 1726.892000, end 2167.882000
 Metadata:
 title : Chapter 05
 Chapter #0:5: start 2167.882000, end 2816.430000
 Metadata:
 title : Chapter 06
 Chapter #0:6: start 2816.430000, end 3769.366000
 Metadata:
 title : Chapter 07
 Stream #0:0[0x1](und): Video: hevc (Main 10) (hvc1 / 0x31637668), yuv420p10le(tv, progressive), 708x478 [SAR 9:10 DAR 1593:1195], 544 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 341 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 Stream #0:2[0x3](eng): Data: bin_data (text / 0x74786574)
 Metadata:
 handler_name : SubtitleHandler
Stream mapping:
 Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7f8630806e00] width not divisible by 2 (849x478)
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
[aac @ 0x7f8630809d00] Qavg: 15927.165
[aac @ 0x7f8630809d00] 2 frames left in the queue on closing
Conversion failed!



However, the same flags work using
ffplay
but I get horizontal black bars instead.

% ffplay -i sfu11.mp4 -vf "scale=ih\*16/9:ih,scale=iw:-2,setsar=1"





I also tried using the cropdetect filter. It doesn't work and end up with the very same black bars while passing
-vf crop=...
.

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Seeking issues on larger video files on HTML page (ffmpeg)
5 juillet 2023, par XenonsAfter testing out numerous of "html video players" and even making our own making sure to wait for events such as player.oncanplaythrough to fire before even attempting to start videos
we've had the same issue for months now.


Mainly we offer 3 resolutions for same video (720, 1080, 4k)
and out of the 3, 2 have the seeking issue where trying to skip to any time or even trying to fast forward by x amount of seconds with arrow keys would just bring the video back to 00:00 time
this only happens on 1080 and 4k resolutions and after refreshing the page it just works as normal afterwards


we've tried pretty much anything we could think of to combat this but with no luck


ffmpeg line for 1080 and 4k (these files are webm but same happened for mp4 on these resolutions with same encoding)


-c:v libvpx-vp9 -pix_fmt yuv420p -crf 24 -b:v 0 -c:a libopus -b:a 128k -movflags +faststart



ffmpeg line for 720 (mp4 file)


-c:v libx264 -preset slow -pix_fmt yuv420p -crf 20 -b:a 128k



To be quite frank at this point I am at a loss and without many ideas left so I am turning to stack overflow in case someone might have an idea on what would cause this


I am contemplating to attempt perhaps loading videos as blobs and playing them that way, not sure if this would fix it but it does bring the load times up drastically so I would save it as last resort


Thus far I have tried two html video players (plyr and videojs) and after that I just wrote my own "player"
of course it's just regular html and js but that's what makes me even more confused as there is nothing that should hinder the files in any way from working as intended


we've also tried changing ffmpeg encoding a few times but to no avail either.


EDIT :
The issue was caused by cloudflare caching, we simply made two rules to exclude webm and mp4 url's from being cached and that completely fixed all of our seeking issues


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How to swtich audio stream with ffmpeg ?
6 octobre 2022, par JasonI have a file which has both english and japanese audio tracks. This is the meta data of the file (using command ffmpeg -i "my_vid.mp4" :


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'my_vid.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2mp41
 encoder : Lavf58.76.100
 Duration: 00:27:13.14, start: 0.000000, bitrate: 1699 kb/s
 Chapters:
 Chapter #0:0: start 0.000000, end 263.012000
 Metadata:
 title : Chapter 01
 Chapter #0:1: start 263.012000, end 353.019000
 Metadata:
 title : Chapter 02
 Chapter #0:2: start 353.019000, end 891.098000
 Metadata:
 title : Chapter 03
 Chapter #0:3: start 891.098000, end 1535.075000
 Metadata:
 title : Chapter 04
 Chapter #0:4: start 1535.075000, end 1624.080000
 Metadata:
 title : Chapter 05
 Chapter #0:5: start 1624.080000, end 1633.140000
 Metadata:
 title : Chapter 06
 Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1920x1080 [SAR 1:1 DAR 16:9], 1413 kb/s, 23.98 fps, 23.98 tbr, 16k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 136 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 Stream #0:2[0x3](jpn): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 137 kb/s
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 Stream #0:3[0x4](eng): Data: bin_data (text / 0x74786574)
 Metadata:
 handler_name : SubtitleHandler



Per the ffmpeg documentation I'm trying to switch the video's audio output to japanese. However, the output video is still in english (which it was in before). This is my current ffmpeg cmd :


ffmpeg -i "my_vid.mp4" -c copy -disposition:a:1 default "output.mp4"



what am I doing wrong ? Still pretty new to ffmpeg


Edit :


With one of the suggestions I tried adding the -map 0 option to my command


ffmpeg -i "my_vid.mp4" -map 0 -c copy -disposition:a:2 default "output.mp4"



but still not change. The meta data for the output video is as follows :


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2mp41
 encoder : Lavf59.33.100
 Duration: 00:27:13.14, start: 0.000000, bitrate: 1699 kb/s
 Chapters:
 Chapter #0:0: start 0.000000, end 263.012000
 Metadata:
 title : Chapter 01
 Chapter #0:1: start 263.012000, end 353.019000
 Metadata:
 title : Chapter 02
 Chapter #0:2: start 353.019000, end 891.098000
 Metadata:
 title : Chapter 03
 Chapter #0:3: start 891.098000, end 1535.075000
 Metadata:
 title : Chapter 04
 Chapter #0:4: start 1535.075000, end 1624.080000
 Metadata:
 title : Chapter 05
 Chapter #0:5: start 1624.080000, end 1633.140000
 Metadata:
 title : Chapter 06
 Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1920x1080 [SAR 1:1 DAR 16:9], 1413 kb/s, 23.98 fps, 23.98 tbr, 16k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 136 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 Stream #0:2[0x3](jpn): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 137 kb/s
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
 Stream #0:3[0x4](eng): Data: bin_data (gpmd / 0x646D7067)
 Metadata:
 handler_name : SubtitleHandler
 Stream #0:4[0x5](eng): Data: bin_data (text / 0x74786574)
 Metadata:
 handler_name : SubtitleHandler