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Autres articles (80)
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Problèmes fréquents
10 mars 2010, parPHP et safe_mode activé
Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site -
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 (...) -
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 (12751)
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FFmpeg with PHP causes Internal Server Error
19 novembre 2015, par Scott HeathI have a PHP script that calls exec() to convert video files using ffmpeg. The script works fine with smaller files, but larger files, usually around 20MB, produce a 500 Internal Server Error after the conversion has run for about 45 seconds.
The max_execution_time is set to 600 seconds (10 minutes) and the max post and upload sizes are set to 1000 MB. The server is Unix based and is not running in safe mode.
Although the issue only happens with larger sizes, I’m not even sure it’s a file size issue. The script will pass with a 12.6MB MOV file but will fail with an 11MB MP4 file.
Below is the exec() line from my script :
exec('ffmpeg -y -i '.escapeshellarg($uploadFile).' -vcodec libx264 -ab 128k -ac 2 -b 640k -g 300 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -maxrate 10M -bufsize 10M -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 '.$convertFile);
Thanks !
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x264 rate control set
2 juillet 2015, par chinayinI have been learning x264 encode for months. What I need is to control the rate and get an average bitrate. Following is my set, I got an average bitrate but the picture quality is bad, so I need your suggestion or something that can help me learn more about x264.
Params.rc.i_rc_method = X264_RC_ABR ;
Params.rc.i_bitrate = nBitRate*0.65/1000 ;
Params.rc.i_vbv_buffer_size = nBitRate/1000;
Params.rc.i_vbv_max_bitrate = nBitRate*0.65/1000 ;
Params.rc.f_vbv_buffer_init = 1.0 ;
Params.rc.f_rate_tolerance = 1.0 ;
Params.i_fps_num = ParamIn.dFrameRate*0.6 ;
Params.i_fps_den = 1 ;
Params.i_width = ParamIn.nWidth ;
Params.i_height = ParamIn.nHeight ; -
What are the specifications of Flex usable FLV videos ?
26 septembre 2011, par RiduidelI have a server which streams FLV files to a Flex client.
In this flex client, the video timeline advances incoherently, and no video can be seen on screen (only the sound can be heard).My FLV file has been generated using ffmpeg, which says (about this generated file)
FFmpeg version 0.6, Copyright (c) 2000-2010 the FFmpeg developers
built on Aug 8 2010 04:24:04 with gcc 4.3.2
configuration: --prefix=/home/marpada/ffmpegfull --enable-gpl --enable-version3 --enable-nonfree --disable-ffplay --disable-ffserver --enable-libmp3lame --enable-libfaac --enable-libvpx --enable-libfaad --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxvid --enable-libx264 --enable-libtheora --extra-ldflags=-static --extra-libs='-lvorbis -logg -lxvidcore -lx264 -lopencore-amrnb -lopencore-amrwb -lfaad -lfaac -lvpx -ltheora -lm -lpthread' --enable-small --enable-runtime-cpudetect
libavutil 50.15. 1 / 50.15. 1
libavcodec 52.72. 2 / 52.72. 2
libavformat 52.64. 2 / 52.64. 2
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0.11. 0 / 0.11. 0
[flv @ 0x95c6aa0]Estimating duration from bitrate, this may be inaccurate
Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
Input #0, flv, from '/appli/perigee_70ri/data/files/ged_bur%0/Imagettes/70ri/279/2/8/20_109021138o.70ri_FLV_preview_.flv':
Metadata:
hasMetadata : true
hasVideo : true
hasAudio : true
duration : 589
lasttimestamp : 589
lastkeyframetimestamp: 589
width : 352
height : 288
videodatarate : 199
framerate : 25
audiodatarate : 125
audiosamplerate : 44100
audiosamplesize : 16
stereo : true
filesize : 25058444
videosize : 15195503
audiosize : 9690850
datasize : 23027
metadatacreator : flvmeta 1.1-r202
audiocodecid : 2
videocodecid : 2
audiodelay : 0
canSeekToEnd : false
hasCuePoints : false
hasKeyframes : true
Duration: 00:09:48.78, start: 0.000000, bitrate: 332 kb/s
Stream #0.0: Video: flv, yuv420p, 352x288, 204 kb/s, 25 tbr, 1k tbn, 1k tbc
Stream #0.1: Audio: mp3, 44100 Hz, 2 channels, s16, 128 kb/s
At least one output file must be specifiedWhich, as far as it seems to me, is OK.
Furthermore, the video plays nice in VLC.