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Médias (3)
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Exemple de boutons d’action pour une collection collaborative
27 février 2013, par
Mis à jour : Mars 2013
Langue : français
Type : Image
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Exemple de boutons d’action pour une collection personnelle
27 février 2013, par
Mis à jour : Février 2013
Langue : English
Type : Image
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Collections - Formulaire de création rapide
19 février 2013, par
Mis à jour : Février 2013
Langue : français
Type : Image
Autres articles (40)
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List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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 (...)
Sur d’autres sites (6998)
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FFMpeg - can't manage to create DnxHR files in Rec2020 / 4:4:4 Chroma sampling
20 mai 2019, par ShouilleI’m trying to convert an image sequence into a Quicktime DnxHR with 4:4:4 sampling in Rec2020 colorspace using FFMpeg 4.1.3. But I’m always ending with 4:2:0 Rec709 file.
In my lastest attempt FFMpeg seems to de the right thing :
ffmpeg.exe -y -i "C:/TEST/final-%04d.dpx" -c:v dnxhd -vf "scale=3840:2160,fps=24,format=yuv444p12le" -profile:v dnxhr_444 -color_primaries 9 -colorspace 9 -color_range 2 C:/TEST/test.mov
During encoding the output stream is shown as 444 / bt2020
Output #0, mov, to 'C:/TEST/test.mov':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le(pc, bt2020nc/bt2020/unknown), 3840x2160, q=2-1024, 200 kb/s, 24 fps, 12288 tbn, 24 tbc
Metadata:
encoder : Lavc58.35.100 dnxhd
frame= 10 fps=3.3 q=1.0 Lsize= 71161kB time=00:00:00.37
bitrate=1554195.5kbits/s speed=0.122x
video:71160kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001114%But when I inspect the output file FFMpeg says it’s in bt709
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/TEST/test.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.20.100
Duration: 00:00:00.42, start: 0.000000, bitrate: 1397959 kb/s
Stream #0:0(eng): Video: dnxhd (DNXHR 444) (AVdh / 0x68645641),
yuv444p10le(pc, bt709/unknown/unknown), 3840x2160, 1399062 kb/s, 24 fps, 24 tbr, 12288 tbn, 12288 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.35.100 dnxhdAnd softwares like MediaInfo say the chroma sampling is in 4.2.0
Any ideas ?
As ask in the comment, the full log of the conversion :
C:\Users\pierrech>ffmpeg.exe -y -i "C:/TEST/final-%04d.dpx" -c:v dnxhd -vf colorspace=all=bt2020:iall=bt2020 -profile:v dnxhr_444 -color_primaries bt2020 -colorspace bt2020_ncl -color_range 2 -color_trc bt2020_12bit C:/TEST/test.mov
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --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
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, image2, from 'C:/TEST/final-%04d.dpx':
Duration: 00:00:00.40, start: 0.000000, bitrate: N/A
Stream #0:0: Video: dpx, rgb48le, 3840x2160, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (dpx (native) -> dnxhd (native))
Press [q] to stop, [?] for help
Output #0, mov, to 'C:/TEST/test.mov':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le(pc, bt2020nc/bt2020/bt2020-12), 3840x2160, q=2-1024, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.35.100 dnxhd
frame= 10 fps=3.8 q=1.0 Lsize= 71161kB time=00:00:00.36 bitrate=1618952.6kbits/s speed=0.136x
video:71160kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001114%And after the conversion
C:\Users\pierrech>ffmpeg.exe -i C:\TEST\test.mov -hide_banner
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\TEST\test.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.20.100
Duration: 00:00:00.40, start: 0.000000, bitrate: 1457373 kb/s
Stream #0:0(eng): Video: dnxhd (DNXHR 444) (AVdh / 0x68645641), yuv444p10le(pc, bt709/unknown/unknown), 3840x2160, 1457356 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.35.100 dnxhd
At least one output file must be specified -
What is the best way to check if audio embedded in video is ambisonic ?
20 mai 2019, par GrzegorzWWe are making 360 video player for VR headsets using Unity. We are trying to achieve spatial audio. The easiest case is when video and audio are in separated files, but now we decided to support also videos with embedded audio. I need to know before i load video if audio is ambisonic or not. I’m looking for an easy way to decide if audio is ambisonic in order to separate it from video and convert to .tbe file, which is currently supported by our app.
I was trying to use ffmpeg :
$./ffmpeg.exe -i ~/Videos/video.mp4
and got :
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --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
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/Users/Medion/Videos/video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.101
Duration: 00:11:39.40, start: 0.000000, bitrate: 17290 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 16497 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Side data:
stereo3d: top and bottom
spherical: equirectangular (0.000000/0.000000/0.000000)
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 4.0, fltp, 778 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 4.0, fltp, 4 kb/s
Metadata:
handler_name : SoundHandler
Stream #0:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s
Metadata:
handler_name : SoundHandler
At least one output file must be specifiedbut I don’t see any line that could indicate that audio is ambisonic. I see that there are 4 channels in streams #0:1 and #0:2, but I bet it’s not enough.
I’ve also tried MediaInfo but it’s the same thing :
General
CompleteName : C:\Users\Medion\Videos\video.mp4
Format/String : MPEG-4
Format_Profile : Base Media
CodecID/String : isom (isom/iso2/avc1/mp41)
FileSize/String : 1.41 GiB
Duration/String : 11 min 39 s
OverallBitRate_Mode/String : Variable
OverallBitRate/String : 17.3 Mb/s
Encoded_Application/String : Lavf57.56.101
Video
ID/String : 1
Format/String : AVC
Format/Info : Advanced Video Codec
Format_Profile : High@L5.2
Format_Settings : CABAC / 3 Ref Frames
Format_Settings_CABAC/String : Yes
Format_Settings_RefFrames/String : 3 frames
Format_Settings_GOP : M=3, N=29
CodecID : avc1
CodecID/Info : Advanced Video Coding
Duration/String : 11 min 39 s
BitRate_Mode/String : Variable
BitRate/String : 16.5 Mb/s
BitRate_Maximum/String : 20.0 Mb/s
Width/String : 3 840 pixels
Height/String : 2 160 pixels
DisplayAspectRatio/String : 16:9
FrameRate_Mode/String : Constant
FrameRate/String : 29.970 (30000/1001) FPS
Standard : NTSC
ColorSpace : YUV
ChromaSubsampling/String : 4:2:0
BitDepth/String : 8 bits
ScanType/String : Progressive
Bits-(Pixel*Frame) : 0.066
StreamSize/String : 1.34 GiB (95%)
Language/String : English
Tagged_Date : UTC 2017-06-13 17:37:51
colour_range : Limited
colour_primaries : BT.709
transfer_characteristics : BT.709
matrix_coefficients : BT.709
Codec configuration box : avcC
Audio #1
ID/String : 2
Format/String : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
CodecID : mp4a-40-2
Duration/String : 11 min 39 s
Source_Duration/String : 11 min 39 s
BitRate_Mode/String : Constant
BitRate/String : 779 kb/s
Channel(s)/String : 4 channels
ChannelLayout : C L R Cb
SamplingRate/String : 48.0 kHz
FrameRate/String : 46.875 FPS (1024 SPF)
Compression_Mode/String : Lossy
StreamSize/String : 64.9 MiB (5%)
Source_StreamSize/String : 64.9 MiB (5%)
Default/String : Yes
AlternateGroup/String : 1
Tagged_Date : UTC 2017-06-13 17:37:51
Audio #2
ID/String : 3
Format/String : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
CodecID : mp4a-40-2
Duration/String : 11 min 39 s
Source_Duration/String : 11 min 39 s
BitRate_Mode/String : Variable
BitRate/String : 4 900 b/s
BitRate_Maximum/String : 266 kb/s
Channel(s)/String : 4 channels
ChannelLayout : C L R Cb
SamplingRate/String : 48.0 kHz
FrameRate/String : 46.875 FPS (1024 SPF)
Compression_Mode/String : Lossy
StreamSize/String : 418 KiB (0%)
Source_StreamSize/String : 418 KiB (0%)
Default/String : No
AlternateGroup/String : 1
Tagged_Date : UTC 2017-06-13 17:37:51
Audio #3
ID/String : 4
Format/String : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
CodecID : mp4a-40-2
Duration/String : 11 min 39 s
Source_Duration/String : 11 min 39 s
BitRate_Mode/String : Variable
BitRate/String : 2 275 b/s
BitRate_Maximum/String : 128 kb/s
Channel(s)/String : 2 channels
ChannelLayout : L R
SamplingRate/String : 48.0 kHz
FrameRate/String : 46.875 FPS (1024 SPF)
Compression_Mode/String : Lossy
StreamSize/String : 194 KiB (0%)
Source_StreamSize/String : 194 KiB (0%)
Default/String : No
AlternateGroup/String : 1
Tagged_Date : UTC 2017-06-13 17:37:51I assume that I don’t know what to look for in those outputs.
Thanks in advance. -
Video file not trimming and copying using FFMpeg in C#
15 mai 2019, par chapperzukI am trying to clip a video using C# in Visual Studios with FFMpeg. I run the code below and it doesn’t come back with any errors, except it doesn’t create a new video file.
I’ve looked around here to make sure I’m using the correct code, but after multiple attempts it still won’t copy.
string videoFile = @"C:\Users\dave\Documents\video 1.mp4";
string outputFile = @"C:\Users\dave\Documents\video 2.mp4";
Process process = new Process();
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.FileName = @"C:\Users\dave\Documents\ffmpeg.exe";
process.StartInfo.Arguments = "ffmpeg -i " + videoFile + " -ss 00:30:00 -t 00:00:10 -c copy " + outputFile;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.Start();I was expecting to get a video cut from the original video, starting at the 30 second mark and lasting 10 seconds, but nothing is created.
I am using the latest FFMpeg from https://ffmpeg.zeranoe.com/builds/
UPDATE If I run the code in command prompt - The file comes out corrupt though
ffmpeg -i "C:\\Users\\dave\\Documents\\video 1.mp4" -ss 00:30:00 -t 00:00:10 -c copy "C:\\Users\\dave\\Documents\\video 2.mp4"
ffmpeg version N-93851-gdcc999819d Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
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. 27.100 / 56. 27.100
libavcodec 58. 52.101 / 58. 52.101
libavformat 58. 27.103 / 58. 27.103
libavdevice 58. 7.100 / 58. 7.100
libavfilter 7. 51.100 / 7. 51.100
libswscale 5. 4.101 / 5. 4.101
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\\Users\\dave\\Documents\\video 1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
creation_time : 2019-01-15T21:57:04.000000Z
title : My Movie
encoder : Lavf56.15.102
description : This video is about My Movie
Duration: 00:06:48.22, start: 0.000000, bitrate: 1283 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 1202 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 2997 tbc (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 74 kb/s (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : SoundHandler
Output #0, mp4, to 'C:\\Users\\dave\\Documents\\video 2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
description : This video is about My Movie
title : My Movie
encoder : Lavf58.27.103
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 1202 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 11988 tbc (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 74 kb/s (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=-1.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown