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Médias (1)
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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (38)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
Other interesting software
13 avril 2011, parWe don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
We don’t know them, we didn’t try them, but you can take a peek.
Videopress
Website : http://videopress.com/
License : GNU/GPL v2
Source code : (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
Sur d’autres sites (5110)
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Merging .flv chunks from stream site
4 décembre 2016, par IztooiI’m trying to download a video from an alternative version of the Ustream site. This site is apparently used for a DRM protection, in fact you can’t watch this video without having access to it through a login from this site.
The video system should be the same used by ustream (same links), that is calling different flv chunks every x seconds and merging them into the stream (similar to an rtmp service, but it doesn’t use this protocol).I managed to download every .flv chunks composing this video, but i had issues on merging them into a single file. First of all these flvs files have some audio/video lags/problems, but since there is no other way to download this video i’m not complaining about lags.
The real issue is that every flv file has an additive increase on the duration, despite having a normal size. Video duration is about 6 seconds, so the first chunk is 6 seconds long, the second chunk is 12 seconds long, although only the first 6 are visible (the remaining 6 are "corrupted"). If i try to merge (with ffmpeg or any video-joining software) all these files (about 600-700, for a total duration of 1 hour and 15 minutes) only the first two sections are visible, then I cannot see anything. (Being more clear, if i try to merge the first 2 chunks, file is 18 seconds long and i can see the first 12 ; if i try to merge the first 3 chunks, file is 36 seconds long and i can still only see the first 12 seconds.)
Anyone has any idea ?
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>SOLVED My FFMPEG throws me unexpected errors while writing a Thumbnail to the songs
22 février 2019, par Harmonised7My issue was that my songs already had a thumbnail. Solution to overwrite thumbnail below !
I am using Node to execute my ffmpeg. I use this wrapper :
https://www.npmjs.com/package/ffmpeg
Everything was fine when I was using smaller versions of the thumbnails provided by Youtube, but when I attempted the HD ones, it suddenly started giving me an error. I’ve tried -pix_fmt yuv422p and Many other pixel formats, but nothing helped. Though ONE out of 100+ songs did tag successfully.
here is my code :
downloadTags(tags.thumbnail, `./thumbnails/${tags.title}.jpg`).then(thumbnail =>
{
video.addCommand('-i', `"${thumbnail}"`);
video.addCommand('-map', '0');
video.addCommand('-map', '1');
video.addCommand('-c', 'copy');
video.addCommand('-c:v:1', 'png');
video.addCommand('-disposition:v:0', 'attached_pic');
if(tags.title)
video.addCommand('-metadata', `title="${tags.title}"`);
if(tags.artist)
video.addCommand('-metadata', `artist="${tags.artist}"`);
if(tags.id)
video.addCommand('-metadata', `comment="https://www.youtube.com/watch?v=${tags.id}"`);
video.addCommand('-pix_fmt', `yuv422p`);
var output = 'downloaded'
if (outFolder)
{
output = outFolder;
if(!fs.existsSync(output)) fs.mkdirSync(output);
}
video.save(`"./${output}/${tags.title}.${tags.format}"`, function (error, file)
{
if (error)
{
resolve(error);
return
}
try
{
fs.unlinkSync(song);
}
catch(err)
{
console.log(err.code);
}
resolve();
});
});
}and here is my error :
E
RROR: Error: Command failed: ffmpeg -i "songs/&I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep].m4a" -y -i "./thumbnails/&I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep].jpg" -map 0 -map 1 -c copy -c:v:1 png -disposition:v:0 attached_pic -metadata title="&I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep]" -metadata artist="AReallyLongAndAwesomeNameThatIsBetterThanYoursInEveryPossibleWay" -metadata comment="https://www.youtube.com/watch?v=HprdvIIpR-I" "./written/&I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep].m4a"
ffmpeg version N-93214-g7e4d3dbe18 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20190212
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
libavutil 56. 26.100 / 56. 26.100
libavcodec 58. 47.102 / 58. 47.102
libavformat 58. 26.101 / 58. 26.101
libavdevice 58. 6.101 / 58. 6.101
libavfilter 7. 48.100 / 7. 48.100
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002213366bb00] stream 0, timescale not set
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'songs/&I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep].m4a':
Metadata:
major_brand : M4A
minor_version : 512
compatible_brands: isomiso2
title : &I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep]
artist : Cider Party
encoder : Lavf58.18.104
comment : https://www.youtube.com/watch?v=HprdvIIpR-I
Duration: 00:05:24.80, start: 0.000000, bitrate: 127 kb/s
Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:1: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 120x90 [SAR 1:1 DAR 4:3], 90k tbr, 90k tbn, 90k tbc
Input #1, image2, from './thumbnails/&I feat. Giggly Maria - Dive (Exiark's Endless Sky Remix) [Chillstep].jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 1575 kb/s
Stream #1:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 480x360 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #1:0 -> #0:2 (mjpeg (native) -> png (native))
Press [q] to stop, [?] for help
[swscaler @ 00000221353d4fc0] deprecated pixel format used, make sure you did set range correctly
[ipod @ 00000221336703c0] Could not find tag for codec png in stream #2, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:2 --
Conversion failed!Keep in mind that All of my thumbnails retrieved are .jpg
Any suggestions ? Getting really desperate at this point...
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FFMPEG reports different (wrong) video resolution compared to how it actually plays
30 mars 2015, par EmilianoQuick question, i have a movie, which was cut and rendered with Sony Vegas from its original format to a .wmv file. Here comes the tricky part, movie when played, either with
VLC
orWMP
, has a resolution of 656x480 ... BUT when i run a ffmpeg -i on it, it says it has a resolution of600x480
....I took the time of actually capturing a frame and croping it with photoshop and its
656
and not600
like ffmpeg its reporting, why would this could be happening ? How could i fix the headers resolution ? Would that have any impact on video re-rendering ? As i said, VLC and WMP seems not to care about the incorrect headers and are playing it right, BUT, jwplayer seems to be using the header information, which i don’t blame him, its correct to do that, but why the video headers could be wrong ?ffmpeg -i trailer.wmv
Input #0, asf, from ’trailer.wmv’ : Duration : 00:01:04.93, start : 3.000000, bitrate : 2144 kb/s Stream #0.0 : Audio : wmav2, 44100 Hz, mono, 32 kb/s Stream #0.1 : Video : wmv3, yuv420p, 600x480 [PAR 59:54 DAR 295:216], 2065 kb/ s, 25.00 tb(r)
And yeah, the
PAR/DAR
parameters are also wrong, but honestly, i don’t understand that technical shit, usually watch video and make sure it look good, any feedback would be appreciated :PIs there a way to change the container information with ffmpeg so applications that actually do use the container information don’t render video incorrectly ?