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Autres articles (102)
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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. -
Les notifications de la ferme
1er décembre 2010, parAfin d’assurer une gestion correcte de la ferme, il est nécessaire de notifier plusieurs choses lors d’actions spécifiques à la fois à l’utilisateur mais également à l’ensemble des administrateurs de la ferme.
Les notifications de changement de statut
Lors d’un changement de statut d’une instance, l’ensemble des administrateurs de la ferme doivent être notifiés de cette modification ainsi que l’utilisateur administrateur de l’instance.
À la demande d’un canal
Passage au statut "publie"
Passage au (...)
Sur d’autres sites (14287)
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ffmpeg producing empty MP4 files
3 mai 2017, par Joshua DowellI am trying to use ffmpeg to convert MTS files to MP4 files. It seems as though the command is running correctly, but the resulting files end up being empty.
joshua@joshua-VirtualBox:~$ ffmpeg -i /media/sf_2017-04/SD_044/00007.MTS /media/sf_2017-04/SD_04/000007.mp4
ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.2, Copyright (c) 2000-2014 the Libav developers
built on Apr 1 2016 14:28:02 with gcc 4.6.3
The ffmpeg program is only provided for script compatibility and will be removed
in a future release. It has been deprecated in the Libav project to allow for
incompatible command line syntax improvements in its replacement called avconv
(see Changelog for details). Please use avconv instead.
Input #0, mpegts, from '/media/sf_2017-04/SD_044/00007.MTS':
Duration: 00:01:17.07, start: 1.927822, bitrate: 25053 kb/s
Program 1
Stream #0.0[0x1011]: Video: h264 (High), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 59.96 fps, 59.94 tbr, 90k tbn, 119.88 tbc
Stream #0.1[0x1100]: Audio: ac3, 48000 Hz, stereo, s16, 256 kb/s
Stream #0.2[0x1200]: Data: [144][0][0][0] / 0x0090
File '/media/sf_2017-04/SD_04/000007.mp4' already exists. Overwrite ? [y/N] y
[buffer @ 0x88772a0] w:1920 h:1080 pixfmt:yuv420p
ffmpeg -i /media/sf_2017-04/SD_044/00007.MTS /media/sf_2017-04/SD_04/000007.mp4
ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.2, Copyright (c) 2000-2014 the Libav developers
built on Apr 1 2016 14:28:02 with gcc 4.6.3
The ffmpeg program is only provided for script compatibility and will be removed
in a future release. It has been deprecated in the Libav project to allow for
incompatible command line syntax improvements in its replacement called avconv
(see Changelog for details). Please use avconv instead.
Input #0, mpegts, from '/media/sf_2017-04/SD_044/00007.MTS':
Duration: 00:01:17.07, start: 1.927822, bitrate: 25053 kb/s
Program 1
Stream #0.0[0x1011]: Video: h264 (High), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 59.96 fps, 59.94 tbr, 90k tbn, 119.88 tbc
Stream #0.1[0x1100]: Audio: ac3, 48000 Hz, stereo, s16, 256 kb/s
Stream #0.2[0x1200]: Data: [144][0][0][0] / 0x0090
File '/media/sf_2017-04/SD_04/000007.mp4' already exists. Overwrite ? [y/N] y
[buffer @ 0x88772a0] w:1920 h:1080 pixfmt:yuv420p
encoder 'aac' is experimental and might produce bad results.
Add '-strict experimental' if you want to use it. -
How to install opencv_contrib on Windows ?
6 mai 2017, par How to codeI want to use the
function createFisherFaceRecognizer()in python,but when I wrote downmodel = cv2.createFisherFaceRecognizer()orcv2.face.createFisherFaceRecognizer()
Error will occurs :Traceback (most recent call last) :
File "C :\Users\Administrator\Desktop\My projects\test\RecognizeMe.py", line 5, in
model = cv2.face.createFisherFaceRecognizer()
AttributeError : ’module’ object has no attribute ’face’I referenced the methods online and found that I should install opencv_contrib.But I was stucked when I was configureing the opencv using CMake.
Error :CMake Error at cmake/OpenCVUtils.cmake:895 (file) : file DOWNLOAD
HASH mismatchfor file: [E:/opencv-3.1.0/sources/opencv-3.1.0/3rdparty/ffmpeg/downloads/35fe6ccdda6d7a04e9056b0d73b98e76/opencv_ffmpeg_64.dll]
expected hash: [35fe6ccdda6d7a04e9056b0d73b98e76]
actual hash: [5171a37169c5e695c556c85dc3103d13]
status: [28;"Timeout was reached"]Call Stack (most recent call first) : 3rdparty/ffmpeg/ffmpeg.cmake:15
(ocv_download) cmake/OpenCVFindLibsVideo.cmake:206 (include)
CMakeLists.txt:536 (include)CMake Error at cmake/OpenCVUtils.cmake:899 (message) : Failed to
download opencv_ffmpeg_64.dll. Status=28 ;"Timeout was reached" Call
Stack (most recent call first) : 3rdparty/ffmpeg/ffmpeg.cmake:15
(ocv_download) cmake/OpenCVFindLibsVideo.cmake:206 (include)
CMakeLists.txt:536 (include)How to solve this problem ?Thank you for your answer !
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exe file not executing from deployed ASP.NET MVC app in TAS (Tanzu /PCF)
24 juin, par Darshan AdakaneI am facing an issue for my ASP.NET MVC web application on .NET 4 being deployed to TAS.


I am trying to do image compression using
ffmpeg.exe.

While it is working on my local machine, I get an "500 internal server error" when deployed to TAS (tanzu application server). I am using
hwc_buildpackand storing the file inPath.GetTemp()folder for testing.

applications:
- name: MyApp-Dev
 memory: 1G
 instances: 1
 stack: windows
 buildpacks:
 - hwc_buildpack
 path: \MyAppnew\obj\Release\Package\PackageTmp
 env:
 services:
 routes:
 - route: myapp-dev.apps.company.com
 - route: myapp-dev.company.com


I also see that the
.exeis being published when app I deployed. I am assuming if TAS has NO permission to read exe or read exe 'not allowed' policy.

This is my code :


[HttpPost]
[Route("uploadimage")]
public async Task<ihttpactionresult> UploadImage()
{
 try
 {
 if (!Request.Content.IsMimeMultipartContent())
 return BadRequest("Unsupported media type.");

 Console.WriteLine("UploadImage method started.");

 var provider = new MultipartMemoryStreamProvider();
 await Request.Content.ReadAsMultipartAsync(provider);

 Console.WriteLine($"Total Files available: {provider.Contents.Count}, {provider.Contents}");

 foreach (var file in provider.Contents)
 {
 try
 {
 var imageFile = await file.ReadAsByteArrayAsync();
 Console.WriteLine($"imageFile, { imageFile.Length }");
 var rawFileName = file.Headers.ContentDisposition.FileName.Trim('"');
 Console.WriteLine($"rawFileName, {rawFileName}");
 var fileName = Path.GetFileName(rawFileName); // Sanitize filename
 Console.WriteLine($"fileName, {fileName}");

 // Check file size limit (300MB)
 if (imageFile.Length > 300 * 1024 * 1024) // 300MB limit
 {
 Console.WriteLine("File size exceeds 300MB limit.");
 return BadRequest("File size exceeds 300MB limit.");
 }

 var inputFilePath = Path.Combine(_uploadFolder, fileName);
 Console.WriteLine($"inputFilePath, {inputFilePath}");

 var outputFilePath = Path.Combine(_uploadFolder, "compressed_" + fileName);
 Console.WriteLine($"outputFilePath, {outputFilePath}");

 // Save uploaded file to disk
 File.WriteAllBytes(inputFilePath, imageFile);

 // Check if the input file exists
 if (!File.Exists(inputFilePath))
 {
 Console.WriteLine($"Input file does not exist: {inputFilePath}");
 return InternalServerError(new Exception($"❌ Input file does not exist: {inputFilePath}"));
 }

 //Console.WriteLine($"✅ FFmpeg found at path: {ffmpegFullPath}");

 await FFMpegArguments
 .FromFileInput(inputFilePath)
 .OutputToFile(outputFilePath, overwrite: true, options => options
 .WithCustomArgument("-vf scale=800:-1")
 .WithCustomArgument("-q:v 10")
 )
 .ProcessAsynchronously();

 Console.WriteLine($"outputFilePath, {outputFilePath}");

 // Check if the output file was created
 if (File.Exists(outputFilePath))
 {
 var fileInfo = new FileInfo(outputFilePath); // Get file info

 Console.WriteLine($"outputFileInfoPropsFullName, {fileInfo.FullName}");
 Console.WriteLine($"outputFileInfoPropsLength, {fileInfo.Length}");

 var compressedFileBytes = File.ReadAllBytes(outputFilePath);
 var compressedFileBase64 = Convert.ToBase64String(compressedFileBytes);

 return Ok(new
 {
 Message = "Image uploaded and compressed successfully.",
 CompressedImagePath = outputFilePath,
 CompressedFileSize = fileInfo.Length, // Size in bytes
 CompressedFileBase64 = compressedFileBase64
 });
 }
 else
 {
 Console.WriteLine("OutputFilePath File not exists.");
 return InternalServerError(new Exception($"❌ Failed to create compressed file: {outputFilePath}"));
 });
 }
 catch (Exception ex)
 {
 Console.WriteLine($"File TRYCATCH:{ex}");
 return InternalServerError(new Exception("Image compression failed: " + ex.Message));
 }
 }
 }
 catch (Exception ex)
 {
 Console.WriteLine($"Method TRYCATCH:{ex}");
 throw;
 }

 return BadRequest("No image file uploaded.");
}
</ihttpactionresult>

I'm getting this error in my tanzu environment logs from the code when I execute :


await FFMpegArguments


This is the exception log :


FFMpegCore.Exceptions.FFMpegException: ffmpeg was not found on your system


I also see that the
.exefiles do exist in TAS in these logs :

2025-06-13T16:07:55.878+05:30 [APP/PROC/WEB/0] [OUT] PATH of FFmpeg Executable: C:\Users\vcap\app\ffmpeg-bin\ffmpeg.exe
2025-06-13T16:07:55.878+05:30 [APP/PROC/WEB/0] [OUT] PATH of ffmpegPath: C:\Users\vcap\app\ffmpeg-bin
2025-06-13T16:07:55.878+05:30 [APP/PROC/WEB/0] [OUT] PATH of BaseDirectory: C:\Users\vcap\app\
2025-06-13T16:07:55.881+05:30 [APP/PROC/WEB/0] [OUT] TempPath: C:\Users\vcap\AppData\Local\Temp\ 
 2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] at MCANew.Controllers.Api.MessagesController.<uploadimage>d__6.MoveNext() in I:\Agents\Agent-Win-B\_work\3033\s\MCANew\Controllers\Api\MessagesController.cs:line 133
2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] --- End of stack trace from previous location where exception was thrown ---
2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] at FFMpegCore.FFMpegArgumentProcessor.<processasynchronously>d__24.MoveNext()
2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] at FFMpegCore.FFMpegArgumentProcessor.PrepareProcessArguments(FFOptions ffOptions, CancellationTokenSource& cancellationTokenSource)
2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] at FFMpegCore.Helpers.FFMpegHelper.VerifyFFMpegExists(FFOptions ffMpegOptions)
2025-06-24T18:39:50.684+05:30 [APP/PROC/WEB/0] [OUT] File TRYCATCH:FFMpegCore.Exceptions.FFMpegException: ffmpeg was not found on your system
</processasynchronously></uploadimage>

My objective is to run successfully exe on TAS and image compression to happen.


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