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Autres articles (61)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...) -
Submit enhancements and plugins
13 avril 2011If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.
Sur d’autres sites (6986)
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avconv : saner output video timebase.
7 février 2012, par Anton Khirnovavconv : saner output video timebase.
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FFMPEG Audio, video out of sync
5 mars 2012, par geeknizerI'm creating Video using FFMPEG from pngs. The problem is on creating the video, and combining with video, its never in sync.
Create video :
ffmpeg -i /home/ubuntu/pngs/* -vcodec libvpx -r 25 -b 1024k -y video.avi
generate audio
ffmpeg -y -f s16le -ar 44100 -ac 2 -i wav_file.wav -acodec libvorbis video.avi
these snapshots were taken at 25fps from a video. Audio is also extracted from same source.
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How to quantify and compare video quality
24 mars 2015, par user940154I have a set of uncompressed videos in YUV format.
I have obtained several derived copies in various formats and resolutions from these yuv files using FFmpeg transcoding. (YUVs ----> X Derived Copies)
What I have also done is, transcode the yuv’s into same resolution AVIs, and now obtained the same set of derived (transcoded) videos treating the AVIs as master. (AVIs ----> X Derived Copies)
Now I wish to compare the quality of transcoded videos, when derived from AVIs to those derived from YUVs.
Is there any way for me to do this using FFmpeg. How ? If not, can you please suggest some good open source software to do this.
Thanks