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Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
Que fait exactement ce script ?
18 janvier 2011, parCe script est écrit en bash. Il est donc facilement utilisable sur n’importe quel serveur.
Il n’est compatible qu’avec une liste de distributions précises (voir Liste des distributions compatibles).
Installation de dépendances de MediaSPIP
Son rôle principal est d’installer l’ensemble des dépendances logicielles nécessaires coté serveur à savoir :
Les outils de base pour pouvoir installer le reste des dépendances Les outils de développements : build-essential (via APT depuis les dépôts officiels) ; (...) -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
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FFmpeg black screen using mpeg2video
16 juin 2020, par KonataI have a proprietary piece of hardware for broadcasting, that accepts extremely specific video format.
The software that we use for it is extremely slow and outdated.



I was looking at adapting FFmpeg to convert .avi/.mp4/etc to the specific format which in our case is





.mpg ( 720*576 16:9, 25FPS, MPEG Video PAL v.2 (Main@High) BVOP)
 acceptable bitrate is 9000k - 15000k.





So I have constructed this FFmpeg command :



-i input.avi -codec:a mp2 -b:a 384k -c:v mpeg2video -aspect 16:9 -bf 2 -b:v 10000k -maxrate 10000k -minrate 10000k -bufsize 5000k -profile:v main -level:v 4.0 output.mpg


The audio is working fine, but instead of video I get a black screen, this is the conversion log



"E:\auto_video\ffmpeg\bin\ffmpeg.exe" -i input.avi -codec:a mp2 -b:a 384k -c:v mpeg2video -aspect 16:9 -bf 2 -b:v 10000k -maxrate 10000k -minrate 10000k -bufsize 5000k -r 25 -profile:v main -level:v 4.0 output.mpg
ffmpeg version git-2020-06-12-38737b3 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.3.1 (GCC) 20200523
 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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 54.100 / 56. 54.100
 libavcodec 58. 92.100 / 58. 92.100
 libavformat 58. 46.101 / 58. 46.101
 libavdevice 58. 11.100 / 58. 11.100
 libavfilter 7. 86.100 / 7. 86.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, avi, from 'input.avi':
 Metadata:
 date : 2020-06-04T14:11:03+06:00
 Duration: 00:00:10.00, start: 0.000000, bitrate: 30465 kb/s
 Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 28915 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
 Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
File 'output.mpg' already exists. Overwrite? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (dvvideo (native) -> mpeg2video (native))
 Stream #0:1 -> #0:1 (pcm_s16le (native) -> mp2 (native))
Press [q] to stop, [?] for help
Output #0, mpeg, to 'output.mpg':
 Metadata:
 date : 2020-06-04T14:11:03+06:00
 encoder : Lavf58.46.101
 Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, 10000 kb/s, 25 fps, 90k tbn, 25 tbc
 Metadata:
 encoder : Lavc58.92.100 mpeg2video
 Side data:
 cpb: bitrate max/min/avg: 10000000/10000000/10000000 buffer size: 5000000 vbv_delay: N/A
 Stream #0:1: Audio: mp2, 48000 Hz, stereo, s16, 384 kb/s
 Metadata:
 encoder : Lavc58.92.100 mp2
frame= 250 fps=0.0 q=2.5 Lsize= 12574kB time=00:00:09.99 bitrate=10302.7kbits/s speed=16.8x
video:12054kB audio:469kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.402694%"E:\auto_video\ffmpeg\bin\ffmpeg.exe" -i input.avi -codec:a mp2 -b:a 384k -c:v mpeg2video -aspect 16:9 -bf 2 -b:v 10000k -maxrate 10000k -minrate 10000k -bufsize 5000k -r 25 -profile:v main -level:v 4.0 output.mpg
ffmpeg version git-2020-06-12-38737b3 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.3.1 (GCC) 20200523
 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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 54.100 / 56. 54.100
 libavcodec 58. 92.100 / 58. 92.100
 libavformat 58. 46.101 / 58. 46.101
 libavdevice 58. 11.100 / 58. 11.100
 libavfilter 7. 86.100 / 7. 86.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, avi, from 'input.avi':
 Metadata:
 date : 2020-06-04T14:11:03+06:00
 Duration: 00:00:10.00, start: 0.000000, bitrate: 30465 kb/s
 Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 28915 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
 Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
File 'output.mpg' already exists. Overwrite? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (dvvideo (native) -> mpeg2video (native))
 Stream #0:1 -> #0:1 (pcm_s16le (native) -> mp2 (native))
Press [q] to stop, [?] for help
Output #0, mpeg, to 'output.mpg':
 Metadata:
 date : 2020-06-04T14:11:03+06:00
 encoder : Lavf58.46.101
 Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, 10000 kb/s, 25 fps, 90k tbn, 25 tbc
 Metadata:
 encoder : Lavc58.92.100 mpeg2video
 Side data:
 cpb: bitrate max/min/avg: 10000000/10000000/10000000 buffer size: 5000000 vbv_delay: N/A
 Stream #0:1: Audio: mp2, 48000 Hz, stereo, s16, 384 kb/s
 Metadata:
 encoder : Lavc58.92.100 mp2
frame= 250 fps=0.0 q=2.5 Lsize= 12574kB time=00:00:09.99 bitrate=10302.7kbits/s speed=16.8x
video:12054kB audio:469kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.402694%



Additional info that might help, I get black screen in MPC-HC, Windows Media Player, and the actual hardware that I converted it for. But it plays fine in VLC


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(C++) I need a program source to parse almost all parameters it receives into a new process call [closed]
14 novembre 2019, par fss1704I have a program that receive some arguments from another program i can’t modify, i need to intercept the arguments and remove one argument (-i randomfilename.gif) from the arguments and then call the original renamed executable with the filtered argument, the original argument looks like this
"ffmpeg.exe -y -i file1.tmp -i file2.tmp -i randomfilename.gif -c:v copy -g 9999 -c:a copy -threads 4 outputfile.mp4"
The gif is a w4t3rmark, that’s why i want it gone, a simple argument change can remove this stuff and make the conversion proccess much quicker if it doesn’t have to reprocess the video stream to include the watermark.
I can take the files and run the command manually, in fact i was using pssuspend to pause ffmpeg so the next stuff coming in gets queued for conversion eternally, the main program thinks it is still converting a file and gives me plenty time to take the original files from the temporary folder before ffmpeg tries to run the conversion with the w4t3rmark parameter and delete the original files, i want to automate this stuff so that i don’t have to bother at all to do stuff manually. -
how to pass arguments to existing process instance in c#
28 octobre 2013, par Akash LanghaniI am using ffmpeg and I have start a process and I want to pass an argument to same instance after its start, so how to do this in c sharp any resource. Basically I am using ffmpeg to recored desktop screen and ffmpeg recording can be stop with "q" word.
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