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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
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Podcasting Legal guide
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Mis à jour : Mai 2011
Langue : English
Type : Texte
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Creativecommons informational flyer
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Mis à jour : Juillet 2013
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Autres articles (111)
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Gestion générale des documents
13 mai 2011, parMédiaSPIP ne modifie jamais le document original mis en ligne.
Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (13333)
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Passing arguments to Powershells Call Operatore - I can't get it to work
2 janvier 2020, par morgola22For some reason I cannot get even the most simple Ffmpeg case to work :
$pathToFfmpeg = "PathToFfmpeg\ffmpeg.exe"
$video = "PathToVideoFile\video.mp4"
$param = "--i $video", "output.avi"
$execute = &$pathToFfmpeg $paramThis should result in the most basic Ffmpeg usage according to Ffmpeg website :
ffmpeg -i input.mp4 output.avi
.
However all I receive is :ffmpeg.exe : ffmpeg version git-2020-01-01-7b58702 Copyright (c) 2000-2020 the FFmpeg developers
At line:4 char:12
+ [string[]] $execute = &$pathToFfmpeg $param
+ ~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (ffmpeg version ...mpeg developers:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
built with gcc 9.2.1 (GCC) 20191125
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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
--enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.100 / 58. 65.100
libavformat 58. 35.101 / 58. 35.101
libavdevice 58. 9.102 / 58. 9.102
libavfilter 7. 70.101 / 7. 70.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Unrecognized option '-i PathToVideoFile\video.mp4'.
Error splitting the argument list: Option not foundSo it seems I am doing something wrong. Anybody knows how I get this to work ? I have tried different methods to create the params array and checked with EchoArgs.exe, but no avail. I am out of ideas. It looks like Ffmpeg does not recognise what Powershell is passing to it.
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Matomo vs WP-Statistics – which web analytics plugin suits you best ?
2 avril 2020, par Joselyn Khor — Analytics Tips, Plugins -
TVHeadend not using codec copy on an IPTV stream ?
3 avril 2020, par petaireSo I'm using the great TVHeadend, which is in my case a DVB-T or IPTV server that can record greatly some inputs. This is a great piece of software, which I recommend much.



But I'm a little bit confused in here. So I've set up a tvheadend on a raspberry pi 4, because I need for my work to record a lot of tv programs. I appreciate TVheadend very much on an other installation, and so are my coworkers who also needs to use it and not a CLI only interface (that's relevant you'll see).



So when I'm using a simple ffmpeg command like this :



ffmpeg -err_detect ignore_err -i http://mystream -to 00:10:00 -codec copy /media/partage/dvr/test.mp4




my cpu usage goes to something like 1 or 2% percent. But when I'm trying to replicate that in tvheadend, the cpu goes to 400%, and clearly it's not the same behavior.



Here my stream configuration :






Here's the result with ffmpeg codec copy :



General
Complete name : /Volumes/Share/dvr/test2.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 58.3 MiB
Duration : 3mn 20s
Overall bit rate : 2 436 Kbps
Writing application : Lavf58.20.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings : 2 Ref Frames
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=50
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 3mn 20s
Bit rate : 2 300 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.100
Stream size : 55.0 MiB (94%)
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 3mn 20s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 1 channel
Channel layout : C
Sampling rate : 44.1 KHz
Frame rate : 43.066 fps (1024 SPF)
Compression mode : Lossy
Stream size : 3.07 MiB (5%)
Language : French
Default : Yes
Alternate group : 1




And the result with tvheadend :



General
Complete name : /Volumes/Share/dvr/2020-04-01/BFMTV/Edition-speciale-BFMTV2020-04-0121-00.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/iso6/mp41)
File size : 8.40 MiB
Duration : 42s 486ms
Overall bit rate : 1 659 Kbps
Movie name : Edition spéciale
Writing application : Lavf58.20.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 40s 512ms
Bit rate : 11.9 Kbps
Nominal bit rate : 1 500 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 25.000 fps
Minimum frame rate : 13.885 fps
Maximum frame rate : 25.014 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.001
Stream size : 58.6 KiB (1%)
Writing library : x264 core 155 r2917 0a84d98
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=125 / keyint_min=12 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=1875 / vbv_bufsize=5625 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 42s 486ms
Bit rate mode : Constant
Bit rate : 172 bps
Nominal bit rate : 172 Kbps
Channel(s) : 1 channel
Channel layout : C
Sampling rate : 48.0 KHz
Frame rate : 46.875 fps (1024 SPF)
Compression mode : Lossy
Stream size : 915 Bytes (0%)
Language : French
Default : Yes
Alternate group : 1




As you can see, Tvheadend is making a variable bitrate and variable framerate file, which is really bad for Premiere Pro (which is the main goal for all this). Clearly it's transcoding it, which I don't need, in a format that is worst for my workflow.



My Pi4 is on Raspbian Buster, but I've also tried this with the same unfortunate result on libreelec.



Does anyone has any idea ?