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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
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Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
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Librairies et binaires spécifiques au traitement vidéo et sonore
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Sur d’autres sites (4556)
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how to use x264 dll in another project
5 août 2014, par Hadi Rasekhenter code here I want to use x264 in my project. There is some line in the code said :
/* Application developers planning to link against a shared library version of
* libx264 from a Microsoft Visual Studio or similar development environment
* will need to define X264_API_IMPORTS before including this header.
* This clause does not apply to MinGW, similar development environments, or non
* Windows platforms. */But I don’t get this line :
define X264_API_IMPORTS before including this headerWe can create x264 dll by its configuration and make
./configure --enable-shared
makebut I can not use the dll in my Qt Project.
I can make my own dll (in another code) and use it in the project.
But when I start to use x264 dll in my project I get the following error :C:\DataHiding\SourceCode2\GUI\DataHiding\mainwindow.cpp:10: error:
'pulldown_frame_duration' was not declared in this scope
qDebug() << pulldown_frame_duration[1];
^ -
ffprobe failing on certain videos
19 mars 2020, par griswoldbarI work on a platform that uses ffprobe as part of a video transcoding pipeline. One of our users is trying and failing to upload video clips extracted from a CCTV system, and it seems the failure is occurring when we parse the clips with ffprobe.
When I run ffprobe from the command line, I get this :
$ ffprobe file.avi
ffprobe version 4.2.2 Copyright (c) 2007-2019 the FFmpeg developers
built with Apple clang version 11.0.0 (clang-1100.0.33.17)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
[avi @ 0x7fc22280b800] Invalid sample_size -1 at stream 1 setting it to 0
[avi @ 0x7fc22280b800] Invalid sample_size -1 at stream 2 setting it to 0
[avi @ 0x7fc22280b800] wav header size < 14 is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[avi @ 0x7fc22280b800] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
file.avi: Invalid data found when processing inputI am however able to parse it with mediainfo, which outputs this :
$ mediainfo file.avi
General
Complete name : file.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 11.3 MiB
Duration : 5 min 0 s
Overall bit rate : 316 kb/s
Video
ID : 0
Format : MPEG-4 Visual
Codec ID : MP43
Codec ID/Info : Microsoft MPEG-4 v3 (pre-standard)
Codec ID/Hint : Microsoft
Duration : 5 min 0 s
Source duration : 5 min 0 s
Bit rate : 308 kb/s
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 16.000 FPS
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.063
Stream size : 11.0 MiB (97%)I’m guessing/hoping that there’s a way to make this work by passing appropriate flags to ffprobe - can anyone point me in the right direction ?
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FFMpegCore .Net cuts off the fist few ( 1.5) seconds of audio
28 mai 2024, par TimI want to use FFMpegCore to convert some audio files to raw pcm. I noticed that this always cuts off 1.5 seconds of my audio from the start. I check my input stream, saved it to HD all good. If use it from cli with the same arguments everything seem fine. I tried -ss 0, no luck. This behavior is observed with .wav (RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 44100 Hz), same issue with different sample rate. I tested mp3 works fine.


public async Task<memorystream> ConvertToPcmStreamAsync(Stream inputStream)
{
 var outputStream = new MemoryStream();
 
 var audioInput = new StreamPipeSource(inputStream);
 var audioOutput = new StreamPipeSink(outputStream);

 await FFMpegArguments
 .FromPipeInput(audioInput)
 .OutputToPipe(audioOutput, options => options
 .WithCustomArgument("-ss 0 -f s16le -acodec pcm_s16le -ac 1"))
 .ProcessAsynchronously();

 // Reset the position of the memory stream to the beginning
 outputStream.Position = 0;

 return outputStream;
}
</memorystream>