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Granite de l’Aber Ildut
9 septembre 2011, par
Mis à jour : Septembre 2011
Langue : français
Type : Texte
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Géodiversité
9 septembre 2011, par ,
Mis à jour : Août 2018
Langue : français
Type : Texte
Autres articles (3)
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D’autres logiciels intéressants
12 avril 2011, parOn ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
Videopress
Site Internet : (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
Sur d’autres sites (2542)
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PHP-FFMpeg Installation and Basic Usage on windows issue
7 mai 2017, par Mikyfollowing the README I installed PHP FFmpeg through Composer and I downloaded binaries from https://ffmpeg.zeranoe.com/builds/
now I’m trying to run the "Basic Usage" example :<?php
require("vendor/autoload.php");
$ffmpeg = FFMpeg\FFMpeg::create();
$video = $ffmpeg->open('video.mpg');
$video
->filters()
->resize(new FFMpeg\Coordinate\Dimension(320, 240))
->synchronize();
$video
->frame(FFMpeg\Coordinate\TimeCode::fromSeconds(10))
->save('frame.jpg');
$video
->save(new FFMpeg\Format\Video\X264(), 'export-x264.mp4')
->save(new FFMpeg\Format\Video\WMV(), 'export-wmv.wmv')
->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm');
?>but i receive "Executable not found" errors because I didn’t understand where to put them
I also tried specifying binaries ffmpeg.exe and ffprobe.exe with :
$ffmpeg = FFMpeg\FFMpeg::create(array(
'ffmpeg.binaries' => '/pathtobin/ffmpeg',
'ffprobe.binaries' => '/pathtobin/ffprobe',
'timeout' => 3600, // The timeout for the underlying process
'ffmpeg.threads' => 12 // The number of threads that FFMpeg should use
), $logger);but still same error... am I making a mountain out of a molehill ? any help is appreciated... Thanks
EDIT 1
I added ffmpeg\bin folder to system path and I can run executables from cmd from anywhere, but now I’m getting this error :
"Executable not found, proposed : avprobe, ffprobe"
...
instead, if I give binary paths explicitly, I get'ffprobe failed to execute command "C:/FFmpeg/bin/ffprobe.exe" "-help" "-loglevel" "quiet"'
what am I doing wrong ?
EDIT 2
web server config
- Windows 10 Pro
- IIS 10
- PHP 7.0.9
site root --->
C:\inetpub\wwwroot\site\
content :
index.php
input.mp4
vendor/ (PHP-FFMpeg library folder)
FFmpeg binaries --->
C:\inetpub\wwwroot\FFmpeg\
content :
ffmpeg.exe
ffplay.exe
ffprobe.exe
index.php
<?php
ini_set('display_errors', 'On'); error_reporting(E_ALL);
require("vendor/autoload.php");
$ffmpeg = FFMpeg\FFMpeg::create(array(
'ffmpeg.binaries' => 'C:/inetpub/wwwroot/FFmpeg/ffmpeg.exe',
'ffprobe.binaries' => 'C:/inetpub/wwwroot/FFmpeg/ffprobe.exe',
'timeout' => 3600, // The timeout for the underlying process
'ffmpeg.threads' => 12, // The number of threads that FFMpeg should use
));
$video = $ffmpeg->open('input.mp4');
?>result
Fatal error: Uncaught Alchemy\BinaryDriver\Exception\ExecutionFailureException: ffprobe failed to execute command "C:/inetpub/wwwroot/FFmpeg/ffprobe.exe" "-help" "-loglevel" "quiet" in C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php:100 Stack trace: #0 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php(72): Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure('"C:/inetpub/www...') #1 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(209): Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process), Object(SplObjectStorage), false) #2 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(137): Alchemy\BinaryDriver\AbstractBinary->run(Object(Symfony\Component\Process\Process), false, NULL) #3 C:\inetpub\wwwroot\site\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe\OptionsTester.php(61): Alchemy\Binary in C:\inetpub\wwwroot\site\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe\OptionsTester.php on line 63
- Windows 10 Pro
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ffmpeg concatenated file does not play as expected
28 janvier 2018, par TrewqI am trying create a video by concatenating in this order :
video1.mp4
&video_from_static_image.mp4
&video1.mp4
video1.mp4
is a simple video file.video_from_static_image.mp4
was created from thea.png
image like this :ffmpeg -y -framerate 25 -f image2 -loop 1 -i a.png -c:v libx264 -profile:v main -pix_fmt yuv420p -t 2 -r 25 video_from_static_image.mp4
I create the final concatenated file through this command :
ffmpeg -y -f concat -safe 0 -i mylist.txt -c copy final_concat.mp4
I get the following message during the concat process :
[mp4 @ 0x7fee6b815e00] Non-monotonous DTS in output stream 0:0; previous: 120678, current: 65722; changing to 120679. This may result in incorrect timestamps in the output file.
The complete output when running the above command is here
When I play
final_concat.mp4
it has problems with video_from_static_image.mp4 and it seems to skip it (and other variations resulted in playing for a short while). I’ve tried a bunch of things, but I believe they all point to the DTS error above.BTW, all the video files are pretty small (< 1MB). Here are details about the version I am using :
$ ffmpeg -version
ffmpeg version 3.3.4 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 7.3.0 (clang-703.0.31)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-vda
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
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100 -
FFmpeg : Frame sizes of the generated video are extremely larger than the expected [closed]
8 février 2021, par bbasaranI am recording frames (screen buffer) as NumPy arrays during the game which runs on the resolution of "400x225". Each frame array is a size of 270.1 kB.


After saving those frames, I create an mp4 file with the following bash command (The game runs in 35 FPS (frames/second)) :


ffmpeg -r 35 -f image2 -i frame%05d.png -vcodec libx264 -crf 1 video.mp4



Then I have used a tool to generate a CSV file of frame data from the video created with the command above. The output is here below. The weird this is that, if we sum those first 35 frames (video was recorded with "-r 35" parameter because game runs in 35 FPS), we get approximately 18k kbit.


18k kbit/sec bitrate is super high for a 400x225 video. What am I doing wrong while generating the video ? I appreciate any help, thanks !