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Autres articles (84)
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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 (...) -
MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
Sur d’autres sites (15984)
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Saving Uncompressed Video Files using OpenCv, Gstreamer, and/or FFMPEG ?
21 septembre 2022, par adav0033I have been trying to implement the
cv::VideoWriter
function from OpenCV to generate a an uncompressed video file. I started this because of a statement within the OpenCV Documentation which I will link here along with the statement.

cv::VideoWriter::VideoWriter ( const String & filename,
int fourcc,
double fps,
Size frameSize,
bool isColor = true 
) 



"If FFMPEG is enabled, using
codec=0
;fps=0
; you can create an uncompressed (raw) video file."

Ref. https://docs.opencv.org/3.4/dd/d9e/classcv_1_1VideoWriter.html


However whilst troubleshooting the function I came across the refuting statement,


" VideoCapture and VideoWriter do not provide interface to access raw compressed video stream, except maybe MJPEG in some cases.
Make sure you actually use FFmpeg backend by setting apiPreference parameter :
VideoWriter("outfile.avi", cv2.CAP_FFMPEG, ...)
"

Ref. https://github.com/opencv/opencv/issues/14573


I am now confused about how I go about writing the
cv::VideoWriter
function to satisfy the requirements to create an uncompressed video file (.avi) and if it is even possible. If it is not possible how do I achieve the outcome of saving an raw uncompressed video file, as I assume it would use some combination of FFMPEG, OpenCV,or Gstreamer.

Note : My code is implemented in c++


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Saving Raw Uncompressed Video Files using OpenCv, Gstreamer, and/or FFMPEG ?
20 septembre 2022, par adav0033I have been trying to implement the
cv::VideoWriter
function from OpenCV to generate a an uncompressed (raw) video file. I started this because of a statement within the OpenCV Documentation which I will link here along with the statement.

cv::VideoWriter::VideoWriter ( const String & filename,
int fourcc,
double fps,
Size frameSize,
bool isColor = true 
) 



"If FFMPEG is enabled, using
codec=0
;fps=0
; you can create an uncompressed (raw) video file."

Ref. https://docs.opencv.org/3.4/dd/d9e/classcv_1_1VideoWriter.html


However whilst troubleshooting the function I came across the refuting statement,


" VideoCapture and VideoWriter do not provide interface to access raw compressed video stream, except maybe MJPEG in some cases.
Make sure you actually use FFmpeg backend by setting apiPreference parameter :
VideoWriter("outfile.avi", cv2.CAP_FFMPEG, ...)
"

Ref. https://github.com/opencv/opencv/issues/14573


I am now confused about how I go about writing the
cv::VideoWriter
function to satisfy the requirements to create a raw uncompressed video file (.avi) and if it is even possible. If it is not possible how do I achieve the outcome of saving an raw uncompressed video file, as I assume it would use some combination of FFMPEG, OpenCV,or Gstreamer.

Note : My code is implemented in c++


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Merge commit ’ba13606ca6adbc74b4db4a72b0769397d6408791’
29 mai 2013, par Michael NiedermayerMerge commit ’ba13606ca6adbc74b4db4a72b0769397d6408791’
* commit ’ba13606ca6adbc74b4db4a72b0769397d6408791’ :
fate : Add a —target-samples path parameterConflicts :
configure
tests/fate/audio.mak
tests/fate/cover-art.mak
tests/fate/demux.mak
tests/fate/ea.mak
tests/fate/filter-video.mak
tests/fate/h264.mak
tests/fate/image.mak
tests/fate/lossless-audio.mak
tests/fate/lossless-video.mak
tests/fate/microsoft.mak
tests/fate/pcm.mak
tests/fate/prores.mak
tests/fate/qt.mak
tests/fate/real.mak
tests/fate/screen.mak
tests/fate/video.mak
tests/fate/voice.mak
tests/fate/vpx.mak
tests/fate/vqf.makMerged-by : Michael Niedermayer <michaelni@gmx.at>
- [DH] configure
- [DH] tests/fate.sh
- [DH] tests/fate/aac.mak
- [DH] tests/fate/ac3.mak
- [DH] tests/fate/adpcm.mak
- [DH] tests/fate/alac.mak
- [DH] tests/fate/als.mak
- [DH] tests/fate/amrnb.mak
- [DH] tests/fate/amrwb.mak
- [DH] tests/fate/atrac.mak
- [DH] tests/fate/audio.mak
- [DH] tests/fate/bmp.mak
- [DH] tests/fate/cdxl.mak
- [DH] tests/fate/cover-art.mak
- [DH] tests/fate/demux.mak
- [DH] tests/fate/dfa.mak
- [DH] tests/fate/dpcm.mak
- [DH] tests/fate/ea.mak
- [DH] tests/fate/filter-audio.mak
- [DH] tests/fate/filter-video.mak
- [DH] tests/fate/flac.mak
- [DH] tests/fate/gif.mak
- [DH] tests/fate/h264.mak
- [DH] tests/fate/image.mak
- [DH] tests/fate/indeo.mak
- [DH] tests/fate/lossless-audio.mak
- [DH] tests/fate/lossless-video.mak
- [DH] tests/fate/microsoft.mak
- [DH] tests/fate/monkeysaudio.mak
- [DH] tests/fate/mp3.mak
- [DH] tests/fate/mpc.mak
- [DH] tests/fate/pcm.mak
- [DH] tests/fate/probe.mak
- [DH] tests/fate/prores.mak
- [DH] tests/fate/qt.mak
- [DH] tests/fate/qtrle.mak
- [DH] tests/fate/real.mak
- [DH] tests/fate/screen.mak
- [DH] tests/fate/subtitles.mak
- [DH] tests/fate/utvideo.mak
- [DH] tests/fate/video.mak
- [DH] tests/fate/voice.mak
- [DH] tests/fate/vorbis.mak
- [DH] tests/fate/vpx.mak
- [DH] tests/fate/vqf.mak
- [DH] tests/fate/wavpack.mak
- [DH] tests/fate/wma.mak