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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (96)
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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. -
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 (9168)
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Add Windows resource file support for shared libraries
5 décembre 2013, par James AlmerAdd Windows resource file support for shared libraries
Originally written by James Almer <jamrial@gmail.com>
With the following contributions by Timothy Gu <timothygu99@gmail.com>
* Use descriptions of libraries from the pkg-config file generation function
* Use "FFmpeg Project" as CompanyName (suggested by Alexander Strasser)
* Use "FFmpeg" for ProductName as MSDN says "name of the product with which the
file is distributed" [1].
* Use FFmpeg’s version (N-xxxxx-gxxxxxxx) for ProductVersion per MSDN [1].
* Only build the .rc files when —enable-small is not enabled.[1] http://msdn.microsoft.com/en-us/library/windows/desktop/aa381058.aspx
Signed-off-by : James Almer <jamrial@gmail.com>
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>- [DH] Changelog
- [DH] Makefile
- [DH] common.mak
- [DH] configure
- [DH] libavcodec/Makefile
- [DH] libavcodec/avcodecres.rc
- [DH] libavdevice/Makefile
- [DH] libavdevice/avdeviceres.rc
- [DH] libavfilter/Makefile
- [DH] libavfilter/avfilterres.rc
- [DH] libavformat/Makefile
- [DH] libavformat/avformatres.rc
- [DH] libavresample/Makefile
- [DH] libavresample/avresampleres.rc
- [DH] libavutil/Makefile
- [DH] libavutil/avutilres.rc
- [DH] libpostproc/Makefile
- [DH] libpostproc/postprocres.rc
- [DH] library.mak
- [DH] libswresample/Makefile
- [DH] libswresample/swresampleres.rc
- [DH] libswscale/Makefile
- [DH] libswscale/swscaleres.rc
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Recording usb cam on raspberry pi with ffmpeg - usb troubleshooting
18 septembre 2017, par Hwy2HellI want to save video from an external usb cam on the raspberry pi 3. In order to avoid voltage drop issues, I use the offical raspberry power supply (2.5 Amp) and connected all usb devices by a separetely powered usb hub :
pi@raspi:~/appdev/ffmpeg $ lsusb
Bus 001 Device 037: ID 046d:09a1 Logitech, Inc. QuickCam Communicate MP/S5500
Bus 001 Device 036: ID 046d:c03f Logitech, Inc. M-BT85 [UltraX Optical Mouse]
Bus 001 Device 035: ID 04d9:1503 Holtek Semiconductor, Inc. Shortboard Lefty
Bus 001 Device 012: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubWhen I try to test the functionality by running the following bash script (snippet) :
function capture
{
capfile=$(date +%F_%Hh%Mm%Ss)
echo saving to $wdir/$capfile.mp4
echo $PATH
ffmpeg -video_size 320x240 -i /dev/video0 \
-vf drawtext="fontsize=18:x=10:y=220:fontcolor=red:\
fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf:\
text=%{localtime}" -t 10 $wdir/$capfile.mp4
# change -t to 3600 = 1h
}
for i in $(seq 1 10)
do
echo
echo Pass $i ...
capture
doneAfter a few loop-runs I always see device errors :
Pass 5 ...
saving to /home/pi/appdev/ffmpeg/2017-09-16_13h31m00s.mp4
/usr/local/bin:/usr/bin/ffmpeg:/usr/bin:/bin:/sbin
ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.2 (Raspbian 4.9.2-10)
configuration: --arch=armhf --target-os=linux --enable-gpl --enable-libfreetype --enable-mmal --enable-nonfree --enable-omx --enable-omx-rpi
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
/dev/video0: Input/output errorThe kernel message log shows that the usb cam has been resetted :
pi@raspi:~/appdev/ffmpeg $ dmesg | grep usb
[ 4497.358195] usb 1-1.2.4: new high-speed USB device number 37 using dwc_otg
[ 4497.573440] usb 1-1.2.4: New USB device found, idVendor=046d, idProduct=09a1
[ 4497.573466] usb 1-1.2.4: New USB device strings: Mfr=0, Product=0, SerialNumber=2
[ 4497.573481] usb 1-1.2.4: SerialNumber: A032D310
[ 4497.605698] input: UVC Camera (046d:09a1) as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2.4/1-1.2.4:1.0/input/input15
[ 4497.625582] usb 1-1.2.4: Warning! Unlikely big volume range (=3072), cval->res is probably wrong.
[ 4497.625606] usb 1-1.2.4: [5] FU [Mic Capture Volume] ch = 1, val = 4608/7680/1
[ 5268.123764] usb 1-1.2.4: reset high-speed USB device number 37 using dwc_otgNext time I start the script, the usb cam gets disconnected and /dev/viedo0 disappears :
pi@raspi:~/appdev/ffmpeg $ dmesg | grep usb
[ 5621.216896] usb 1-1.2.4: USB disconnect, device number 37
[ 5621.586804] usb 1-1.2.4: new full-speed USB device number 38 using dwc_otg
[ 5621.686694] usb 1-1.2.4: device descriptor read/64, error -32
[ 5621.896583] usb 1-1.2.4: device descriptor read/64, error -32
[ 5622.106572] usb 1-1.2.4: new full-speed USB device number 39 using dwc_otg
[ 5622.206574] usb 1-1.2.4: device descriptor read/64, error -32
[ 5622.416577] usb 1-1.2.4: device descriptor read/64, error -32
[ 5622.626586] usb 1-1.2.4: new full-speed USB device number 40 using dwc_otg
[ 5623.046583] usb 1-1.2.4: device not accepting address 40, error -32
[ 5623.146583] usb 1-1.2.4: new full-speed USB device number 41 using dwc_otg
[ 5623.566603] usb 1-1.2.4: device not accepting address 41, error -32
[ 5623.566670] usb 1-1.2-port4: unable to enumerate USB deviceHas anybody experienced similar problems and can provide a fix for it ?
What tools can I use to troubleshoot the usb communication on the pi ?
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Shortcut to open command prompt with preloaded command
13 janvier 2019, par LemonsI use
FFMPEG
to convert MP4s to WEBMs. This involves me constantly copying over my preferred script into the command prompt every single time. Is there a way to open a commant prompt with a certain command already set up and ready to go without executing the commmand immediately so that it is still editable ? Many times I need to change parameters of the script to match the specific file I will be converting...so simply having a pre-loaded script that runs by itself doesn’t make sense.Tried making a CMD shortcut but couldn’t find a way to do this without automatically running the command. Tried making a batch file, got the script to copy in, but it wasn’t editable.
Here is the FFMPEG script I use :
ffmpeg -i "in.mp4" -b:v 3000k -b:a 128k -threads 6 out.webm