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Collections - Formulaire de création rapide
19 février 2013, par
Mis à jour : Février 2013
Langue : français
Type : Image
Autres articles (36)
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)
Sur d’autres sites (7386)
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How to save the output of an FFmpeg command into a text file
14 décembre 2019, par Baba.SHow can I save the output of an ffmpeg process into a text file ? I see the stuff I want to save come up in the terminal :
frame=62 fps=0.0 q=-0.0 size=0kB time=00:00:01.06 bitrate=0.3kbit
frame=116 fps=115 q=-0.0 size=0kB time=00:00:01.97 bitrate=0.2kbit
frame=175 fps=116 q=-0.0 size=kB time=00:00:02.92 bitrate=0.1kbit
frame=232 fps=113 q=-0.0 size=0kB time=00:00:03.87 bitrate=0.1kbitBut need to know how this can be saved into a test file or even a csv file
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C++/CLI FFmpeg av_read_frame returns a size but no data ?
26 novembre 2013, par tommedI have written some C code to access ffmpeg and wrapped it in a C++/CLI (.NET managed) class. The program fetches a live video stream and extracts frames and converts them to PNG files.
Unfortunately the images that are saved to disk are always black (opening them in Notepad++ shows that they are full of nulls).
I am using the assemblies aformat/codec-55.dll and the development headers and libs for compilation from ffmpeg-20131120-git-e502783-win64-dev. The whole project is compiled using Managed C++ (Cpp/cli) .NET 4.0 for 64-bit.
After some investigation the problem appears to be that av_read_frame fills the AVPacket->size value correctly, but the AVPAcket->data is always null. When the frame is finished (got==1) then the data for the AVFrame is just a matrix of nulls. :(
Here is the code :
Example code (sorry, but it didnt paste well into SO)I think the problem is at line 34 when the packet is returned like so :
Please, how can I get this to work ? What have I done wrong ?
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FFmpeg av_read_frame returns a size but no data ?
11 décembre 2013, par tommedI have written some C code to access ffmpeg and wrapped it in a C++/CLI (.NET managed) class. The program fetches a live video stream and extracts frames and converts them to PNG files.
Unfortunately the images that are saved to disk are always black (opening them in Notepad++ shows that they are full of nulls).
I am using the assemblies aformat/codec-55.dll and the development headers and libs for compilation from ffmpeg-20131120-git-e502783-win64-dev. The whole project is compiled using Managed C++ (Cpp/cli) .NET 4.0 for 64-bit.
After some investigation the problem appears to be that av_read_frame fills the AVPacket->size value correctly, but the AVPAcket->data is always null. When the frame is finished (got==1) then the data for the AVFrame is just a matrix of nulls. :(
Here is the code :
Example code (sorry, but it didnt paste well into SO)I think the problem is at line 34 when the packet is returned like so :
Please, how can I get this to work ? What have I done wrong ?