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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (97)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)
Sur d’autres sites (10393)
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FFMpeg : Webcam capture not fast enough. Ffmpeg dies half way (Linux)
19 août 2013, par user763410I am trying to capture webcam output in liux/ubuntu. I have a chico webcam (lenovo laptop). I am running inside a VMWARE virtual machine. The capture is not proceeding beyond 10 seconds. can you please help.
The command I used is :
$ ffmpeg -y -f video4linux2 -r 20 -s 160x120 -i /dev/video0 -acodec libfaac -ab 128k /tmp/web.avi
The most important message I am getting is :
[video4linux2,v4l2 @ 0x9e43fa0] The v4l2 frame is 46448 bytes, but 153600 bytes are expected
Complete message from ffmpeg :
ffmpeg version N-55159-gf118b41 Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 18 2013 09:09:13 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-libass --prefix=/opt/ffmpeg --enable-debug --enable-libfreetype
libavutil 52. 40.100 / 52. 40.100
libavcodec 55. 19.100 / 55. 19.100
libavformat 55. 12.102 / 55. 12.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.100 / 3. 82.100
libswscale 2. 4.100 / 2. 4.100
libswresample 0. 17.103 / 0. 17.103
[video4linux2,v4l2 @ 0x9e43fa0] The V4L2 driver changed the video from 160x120 to 320x240
[video4linux2,v4l2 @ 0x9e43fa0] The driver changed the time per frame from 1/20 to 1/15
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 6424.338678, bitrate: 18432 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 18432 kb/s, 15 fps, 15 tbr, 1000k tbn, 1000k tbc
Codec AVOption ab (set bitrate (in bits/s)) specified for output file #0 (/tmp/web.avi) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Output #0, avi, to '/tmp/web.avi':
Metadata:
ISFT : Lavf55.12.102
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240, q=2-31, 200 kb/s, 20 tbn, 20 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg4)
Press [q] to stop, [?] for help
[video4linux2,v4l2 @ 0x9e43fa0] The v4l2 frame is 46448 bytes, but 153600 bytes are expected
/dev/video0: Invalid data found when processing input
frame= 29 fps= 14 q=3.5 Lsize= 87kB time=00:00:01.45 bitrate= 490.0kbits/s
video:80kB audio:0kB subtitle:0 global headers:0kB muxing overhead 7.760075%
[video4linux2,v4l2 @ 0x9e43fa0] Some buffers are still owned by the caller on close. -
How to run ffmpeg on a AMD GPU
20 septembre 2023, par Hakan Murat AksütHow to run ffmpeg under Ubuntu on an AMD GPU.


https://jcutrer.com/howto/ffmpeg-amd-nvidia-hardware-video-encoding-h264-h265


I am using the codes on this site. But the GPU commands do not work. I'm not sure if my GPU driver is installed.


I write
ffmpeg -i input.avi -c:v h264_amf output.mp4
when,Unknown encoder 'h264_amf


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Getting ffserver && ffmpeg to work of Debian with Logitech C270 [closed]
14 mars 2013, par Joseph Baldwin RobertsI'm having real trouble getting my webcam to work and I wonder if anyone can help. Im running Raspian on a raspberry pi.
When I run lsusb I get :
pi@raspberrycar ~ $ lsusb
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 005: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter
Bus 001 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270When I run v412-ctl —all I get :
pi@raspberrycar ~ $ v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : UVC Camera (046d:0825)
Bus info : usb-bcm2708_usb-1.2.4
Driver version: 3.6.11
Capabilities : 0x04000001
Video Capture
Streaming
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV'
Field : None
Bytes per Line: 1280
Size Image : 614400
Colorspace : SRGB
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Video input : 0 (Camera 1: ok)
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 5.000 (5/1)
Read buffers : 0When I run v412-ctl —list-formats I get :
pi@raspberrycar ~ $ v4l2-ctl --list-formats
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUV 4:2:2 (YUYV)
Index : 1
Type : Video Capture
Pixel Format: 'MJPG' (compressed)
Name : MJPEGMy ffserver settings file is /etc/ffserver.conf
Port 80
BindAddress 0.0.0.0
MaxClients 10
MaxBandwidth 50000
NoDaemon
<feed>
file /tmp/webcam.ffm
FileMaxSize 10M
</feed>
<stream>
Feed webcam.ffm
Format mpeg
VideoSize 640x480
VideoFrameRate 10
VideoBitRate 2000
VideoQMin 1
VideoQMax 10
</stream>
<stream>
Format status
ACL allow 192.168.2.0 192.168.2.255
</stream>My ffmpeg run string is /usr/sbin/webcam.sh
ffserver -f /etc/ffserver.conf & ffmpeg -v verbose -r 5 -s 640x480 -f video4linux2 -i /dev/video0 http://localhost/webcam.ffm
When I run this is the output :
pi@raspberrycar ~ $ sudo /usr/sbin/webcam.sh
ffmpeg version 1.0.5ffserver version 1.0.5 Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 14 2013 18:37:40 with gcc 4.6 (Debian 4.6.3-14+rpi1)
Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 14 2013 18:37:40 with gcc 4.6 (Debian 4.6.3-14+rpi1)
configuration:
libavutil 51. 73.101 / 51. 73.101
configuration:
libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libswresample 0. 15.100 / 0. 15.100
[video4linux2,v4l2 @ 0xfa5620] [3]Capabilities: 4000001I can see the stream on the status page and my webcam light is on but it never loads. Does anyone know what I am doing wrong ?
Thanks in advance
Joe