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  • Keeping control of your media in your hands

    13 avril 2011, par

    The 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 (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-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

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

Sur d’autres sites (3751)

  • Concatenating Video Files using FFMPEG YUV issue

    3 novembre 2015, par SpoiledTechie.com

    I am concatenating three videos with FFMPEG.

    The 1st and 3rd video of the concatenation were pulled from an AVI file using FFMPEG and converted into MP4.

    Their codec information is below.

    enter image description here

    The 2nd video in the concatenation is compiled using FFMPEG. I am compiling frames with FFMPEG to create this video.

    Its codec information is below.

    enter image description here
    As you can see, the videos share the same codec, resolution and frame rate.

    The only thing they don’t share is the Decoded format. One being 4:4:4 and one being 4:2:2

    I think I understand what YUV means from this link, https://msdn.microsoft.com/en-us/library/windows/desktop/dd391027%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396

    When I concatenate these three videos together, using concat demuxer, it works, but when I try to watch the final video, the video shows the first file playing just right, then the 2nd video in the final video shows up BLANK and the third video plays just fine as well.

    So my question is, how do I concat 3 MP4 files, but change what seems to be the decoded format for the 2nd video to 4:2:2. When I compile the frames, I imagine I can change the YUV format, but I don’t know how just yet.

  • libFLAC : Remove commented out assert

    24 décembre 2016, par Erik de Castro Lopo
    libFLAC : Remove commented out assert

    Pointed out by c.helmrich@ecodis.de. It was added during debugging
    
in commit c06a44969, but was never meant to stay.
    • [DH] src/libFLAC/stream_encoder.c

  • Silence in RTP stream in ffmpeg

    9 octobre 2020, par Odatia

    I am trying to record a webRTC stream. The stream is coming in in the OPUS codec, and is then being piped into ffmpeg for recording, using the -c:a copy flag. However, if there are missing packets, for example, if I mute my microphone (or even stay quiet for a short period), when the audio is played back (webm file), it jumps across these "silences".

    


    I have tried to use the DTX option to insert comfort noise, but my input is 4800MHz which is not supported.

    


    My full mpeg command is :

    


    ffmpeg -nostdin -protocol_whitelist file,rtp,udp -use_wallclock_as_timestamps 1 -fflags +genpts -i /tmp/sdpfilesfhmw4rymzy8wv25ybm610xte  -map 0:a:0 -c:a copy -f webm -flags +global_header -y ./server/lib/recording/test-icc-networks-xzsyoe1f.webm


    


    Any help would be appreciated !

    


    Thanks,
Joe

    


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