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Autres articles (35)
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Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
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 (...) -
La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)
Sur d’autres sites (7613)
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How to cut video into 4M size mp4 video using ffmpeg
13 octobre 2022, par fxsshiwoI have a *.mp4 video file, which is cut to a fixed size using ffmpeg, using the following commands


'/usr/local/ffmpeg/bin/ffmpeg' '-y' '-ss' '00:00:00.00' '-i' '57066524-1.mp4' '-t' '00:00:05.00' '-vcodec' 'libx264' '-acodec' 'libmp3lame' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes6332bdc9814883qh89/pass-6332bdc98160c' '1.mp4'


but I get an error saying -


Unknown encoder 'libx264'


Here is the complete error message:


ffmpeg version 5.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-44)
 configuration: --enable-shared --enable-swscale --enable-gpl --enable-nonfree --enable-pic --prefix=/usr/local/ffmpeg --enable-version3 --enable-postproc --enable-pthreads --enable-static --enable-libx264
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '57066524-1.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: mp42mp41
 creation_time : 2022-09-26T02:06:24.000000Z
 Duration: 00:00:26.11, start: 0.000000, bitrate: 6683 kb/s
 Stream #0:0[0x1](eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(progressive), 720x720 [SAR 1:1 DAR 1:1], 6367 kb/s, 25 fps, 25 tbr, 25k tbn (default)
 Metadata:
 creation_time : 2022-09-26T02:06:24.000000Z
 handler_name : ?Mainconcept Video Media Handler
 vendor_id : [0][0][0][0]
 encoder : AVC Coding
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
 Metadata:
 creation_time : 2022-09-26T02:06:24.000000Z
 handler_name : #Mainconcept MP4 Sound Media Handler
 vendor_id : [0][0][0][0]
Unknown encoder 'libx264'




I try to install libx264 and recompile, I still get this error


[install libx264]
git clone https://code.videolan.org/videolan/x264.git
cd x264
./configure --prefix=/usr/local/x264/ --includedir=/usr/local/include --libdir=/usr/local/lib --enable-shared
./configure --prefix=/usr/softinstall/x264/ --includedir=/usr/local/include --libdir=/usr/local/lib --enable-shared

[compile ffmpeg]
wget http://www.ffmpeg.org/releases/ffmpeg-5.1.tar.gz
tar -zxvf ffmpeg-5.1.tar.gz
cd ffmpeg-5.1
./configure --enable-shared --enable-swscale --enable-gpl --enable-nonfree --enable-pic --prefix=/usr/local/ffmpeg --enable-version3 --enable-postproc --enable-pthreads --enable-static --enable-libx264 --enable-libmp3lame



My questions :


- 

- How to install ffmpeg with libx264
- How to cut video into fixed size with ffmpeg






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Creating files with irregular names in Segment Demuxer
19 novembre 2022, par AliI have a video stream coming from tvheadend and I record it in 10 second chunks
This is my recording command :


ffmpeg -i INPUT_PATH -f ssegment -segment_time 10 -segment_atclocktime 1 -segment_clocktime_offset 0 -write_empty_segments 1 -strftime 1 -b:v 3M -b:a 128k "TNA-%Y-%m-%d-%H-%M-%S.ts"



This command works fine for me and creates the following files for me without any problem


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- TNA-2022-11-19-20-35-20
- TNA-2022-11-19-20-35-30
- TNA-2022-11-19-20-35-40
- TNA-2022-11-19-20-35-50
- TNA-2022-11-19-20-36-00












But the input stream is H264 and this command records in MPEG-2 format
In the meantime, I lose the quality of the stream


On the other hand, if I add the -c:v libx264 -c:a aac option, irregular files are generated.
For example :


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- TNA-2022-11-19-20-36-20
- TNA-2022-11-19-20-36-33
- TNA-2022-11-19-20-36-43
- TNA-2022-11-19-20-36-53
- TNA-2022-11-19-20-36-04
- TNA-2022-11-19-20-36-14














And my software can't find the files anymore


The
-break_non_keyframe 1
option solves the problem of naming the files, but the image of the files remains fixed for a few seconds when starting

Can anyone help me ?


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How to cut video into 4M size mp4 video using ffmpeg
13 octobre 2022, par fxsshiwoI have a *.mp4 video file, which is cut to a fixed size using ffmpeg, using the following commands


'/usr/local/ffmpeg/bin/ffmpeg' '-y' '-ss' '00:00:00.00' '-i' '57066524-1.mp4' '-t' '00:00:05.00' '-vcodec' 'libx264' '-acodec' 'libmp3lame' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes6332bdc9814883qh89/pass-6332bdc98160c' '1.mp4'


but I get an error saying -


Unknown encoder 'libx264'


Here is the complete error message:


ffmpeg version 5.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-44)
 configuration: --enable-shared --enable-swscale --enable-gpl --enable-nonfree --enable-pic --prefix=/usr/local/ffmpeg --enable-version3 --enable-postproc --enable-pthreads --enable-static --enable-libx264
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '57066524-1.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: mp42mp41
 creation_time : 2022-09-26T02:06:24.000000Z
 Duration: 00:00:26.11, start: 0.000000, bitrate: 6683 kb/s
 Stream #0:0[0x1](eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(progressive), 720x720 [SAR 1:1 DAR 1:1], 6367 kb/s, 25 fps, 25 tbr, 25k tbn (default)
 Metadata:
 creation_time : 2022-09-26T02:06:24.000000Z
 handler_name : ?Mainconcept Video Media Handler
 vendor_id : [0][0][0][0]
 encoder : AVC Coding
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
 Metadata:
 creation_time : 2022-09-26T02:06:24.000000Z
 handler_name : #Mainconcept MP4 Sound Media Handler
 vendor_id : [0][0][0][0]
Unknown encoder 'libx264'




I try to install libx264 and recompile, I still get this error


[install libx264]
git clone https://code.videolan.org/videolan/x264.git
cd x264
./configure --prefix=/usr/local/x264/ --includedir=/usr/local/include --libdir=/usr/local/lib --enable-shared
./configure --prefix=/usr/softinstall/x264/ --includedir=/usr/local/include --libdir=/usr/local/lib --enable-shared

[compile ffmpeg]
wget http://www.ffmpeg.org/releases/ffmpeg-5.1.tar.gz
tar -zxvf ffmpeg-5.1.tar.gz
cd ffmpeg-5.1
./configure --enable-shared --enable-swscale --enable-gpl --enable-nonfree --enable-pic --prefix=/usr/local/ffmpeg --enable-version3 --enable-postproc --enable-pthreads --enable-static --enable-libx264 --enable-libmp3lame



My questions :


- 

- How to install ffmpeg with libx264
- How to cut video into fixed size with ffmpeg