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Médias (1)
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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (81)
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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" ; -
Gestion des droits de création et d’édition des objets
8 février 2011, parPar défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;
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Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (3541)
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How to enable different components of FFMPEG ?
3 décembre 2011, par Richard77I've found this C# wrapper code around FFMPEG. I'm using ASP.NET MVC3 and C#. When trying to get it work, I'm getting the following error :
RawOutput "ffmpeg version N-34906-g4e7b3ef, Copyright (c) 2000-2011
the FFmpeg developers
built on Nov 16 2011 12:35:07 with gcc 4.6.2
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype
--enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp
--enable-libschroedinger --enable-libspeex --enable-libtheora
--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid
--enable-zlib
libavutil 51. 25. 0 / 51. 25. 0
libavcodec 53. 34. 0 / 53. 34. 0
libavformat 53. 20. 0 / 53. 20. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 48. 1 / 2. 48. 1
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
[wmv3 @ 002BFA00] Extra data: 8 bits left, value: 0
[asf @ 002B8A80] parser not found for codec wmav2, packets or times may be invalid.
Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 30.00 (30/1)
Input #0, asf, from 'C:\\FfMpeg\\Videos\\Original\\Video1.wmv':
Metadata:
WMFSDKVersion : 11.0.6002.18049
WMFSDKNeeded : 0.0.0.0000
IsVBR : 0
Duration: 00:00:41.80, start: 0.000000, bitrate: 888 kb/s
Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, s16, 64 kb/s
Stream #0:1(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 320x240, 786 kb/s, 30 tbr, 1k tbn, 1k tbc
Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
[buffer @ 031D8DA0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 031D8FA0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 03106C20] w:320 h:240 fmt:yuv420p -> w:320 h:240 fmt:yuvj420p flags:0x4
[wmv3 @ 002BFA00] Extra data: 8 bits left, value: 0
Output #0, image2, to '87334ed0-2bcf-4be5-82ae-9089c14e0323.jpg':
Metadata:
WMFSDKVersion : 11.0.6002.18049
WMFSDKNeeded : 0.0.0.0000
IsVBR : 0
encoder : Lavf53.20.0
Stream #0:0(eng): Video: mjpeg, yuvj420p, 320x240, q=2-31, 200 kb/s, 90k tbn, 30 tbc
Stream mapping:
Stream #0:1 -> #0:0 (wmv3 -> mjpeg)
Press [q] to stop, [?] for help
[image2 @ 03107920] Could not open file : 87334ed0-2bcf-4be5-82ae-9089c14e0323.jpg
av_interleaved_write_frame(): Input/output error
" stringI'm absolutely new to FFMPEG, so I don't know where to start to solve the above probleme.
EDIT
public ActionResult Convert()
{
Converter _converter = new Converter(@"C:\FfMpeg\ffmpeg.exe");
OutputPackage oo = _converter.ConvertToFLV(@"C:\FfMpeg\Videos\Original\Video1.wmv");
FileStream outStream = System.IO.File.OpenWrite(@"C:\FfMpeg\Videos\Converted\Video1.flv");
oo.VideoStream.WriteTo(outStream);
outStream.Flush();
outStream.Close();
oo.PreviewImage.Save(@"C:\FfMpeg\Videos\Thumbnail\Thumbnail1.jpg");
return RedirectToAction("WatchMovie");
}Thanks for helping
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Revision 0359ad7f9a : Skip inverse transform when eob is zero When all the transform coefficients wer
23 juillet 2013, par Jingning HanChanged Paths :
Modify /vp9/encoder/vp9_encodemb.c
Skip inverse transform when eob is zeroWhen all the transform coefficients were quantized to zero, skip
the inverse transform operation. For bus_cif at 1000 kbps, the
runtime goes from 154967ms -> 149842ms, i.e., about 3% speed-up,
at speed 0.Change-Id : Ic0a813fff5e28972d4888ee42d8747846a6c3cc6
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Revision 38fa487164 : Shortcut 8x8/16x16 inverse 2D-DCT This commit brought back the shortcut impleme
27 juillet 2013, par Jingning HanChanged Paths :
Modify /vp9/decoder/vp9_idct_blk.c
Modify /vp9/encoder/vp9_encodemb.c
Shortcut 8x8/16x16 inverse 2D-DCTThis commit brought back the shortcut implementation of 8x8/16x16
inverse 2D-DCT. When the eob <= 10, it skips the inverse transform
operations on row 4:7/4:15 in the first round. For bus_cif at 1000
kbps, this provides about 2% speed-up at speed 0.Change-Id : I453e2d72956467d75be4ad8c04b4482ab889d572