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Autres articles (77)
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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 (...) -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
Sur d’autres sites (9302)
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avconv : rename transcode_audio/video to decode_audio/video.
18 mai 2012, par Anton Khirnovavconv : rename transcode_audio/video to decode_audio/video.
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Copy PTS from original video stream to processed video stream using ffmpeg and opencv
25 janvier 2019, par Krishna Prasad YellapragadaI have two video files in webm format. First is the original video, captured using Chrome’s MediaRecorder API. The second is a processed video generated by processing each frame of the original video using OpenCV. How do I override the PTS of frames in processed video with PTS from original video. The number of frames between the two is same.
The processed video is generated from a sequence of images using ffmpeg.
ffmpeg -i frames/frame_%d.png -pix_fmt yuv420p ffmpeg-cfr.mp4
This results in a CFR of 25fps. I have tried using the steps from the link, Can I create a VFR video from timestamped images ?. This only works on mp4 videos, and not on webm. The process of encoding to MP4 and converting back to webm results in very bad video quality and takes 3x time for each video.
Along with the sequence of images, I am also writing the PTS of the original video for each frame in a timecodes.txt file. Are there any options in ffmpeg similar to mp4fpsmod (https://github.com/nu774/mp4fpsmod) ?
I expect that when I dump block-wise timestamps in webm for original video and processed video, the PTS for each block match between the two. -
streaming video is playing, when voice input enable the video change to silence,how to fix this bug ?
18 avril 2015, par CrespoXiaoPlease check the image, I add the following code when voide input finish, but it doesn’t work. Once the voice input finish, the video would have sound after a short while, but sometimes not, don’t know why. Any solution ?
/**
* back from other audio app or use voice input
*/
- (void)enableAudio {
// AudioSessionInitialize(NULL, NULL, NULL, NULL);
// UInt32 sessionCategory = kAudioSessionCategory_MediaPlayback;
// AudioSessionSetProperty(kAudioSessionProperty_AudioCategory,sizeof(sessionCategory),&sessionCategory);
// AudioSessionSetActive(YES);
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error: nil];
[[AVAudioSession sharedInstance] setActive: YES error: nil];
}