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Autres articles (47)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Submit enhancements and plugins

    13 avril 2011

    If 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 (6257)

  • Is it possible to convert h265 video to h264 with resizing in Android app without the FFMPEG ?

    12 août 2022, par Robson

    I want to convert all videos based on h265 to h264 and at the same time reduce the resolution to for example 720p to avoid working on very big resolutions and later uploading that kind of big size files.

    


    I see docs https://developer.android.com/guide/topics/media/media-formats says that for h265 Android OS supports only decoding, not encoding.

    


    I know that FFMPEG will solve all my problems, but including FFMPEG will increase the app size very much, I'd like to avoid that. I am trying to use currently the Android MediaCodec, but it looks like it would work fine with converting h264 to h264 but not with h265 to h264.

    


    Do you have any ideas ? I don't need to support old Android versions.

    


    Thanks for any advice.

    


  • Ffmpeg : Describing the audio data manually

    11 février 2015, par Dries

    I’m trying to manually create the packets from the audio that will be sent to the ffmpeg encoder. I’m trying to do this in the s16le format.

    I’m to write the audio after I’ve written the video frame like this :

    // Write a frame to the ffmpeg stream
    
fwrite(frame, sizeof(unsigned char*) * frameWidth * frameHeight, 1, ffmpeg); 
    

    
// Write multiple sound samples per written frame
    
for (int t = 0; t < 44100/24; ++t)
    
    fwrite(&audio, sizeof(short int), 1, ffmpeg);

    I think that this should be possible but I don’t know how to describe the audio without directly using the libavformat library that does this automatically.

    Is this possible ? If so, how do I describe the audio properly ? I’m currently getting integer values from a sine wave.

  • Emphasis level map with ffmpeg using NVENC

    2 novembre 2020, par ofer rubinstein

    I am trying to have different compression levels, to different regions in the video.
ffmpeg has something called "addroi", but it's just a recommendation and doesn't guarantee the absolute level of compression.
Nvidia NVENC has something called Emphasis Level Map, I am hoping this will be able to achieve an accurate level of compression per region.

    


    I am unable to find how to do this via ffmpeg executable, so I am starting to try to do this using the ffmpeg SDK.
Do you have any idea how to do this via the ffmpeg.exe, instead of using the SDK ?

    


    Here is what I am talking about in the NVIDIA documentation :

    


    https://docs.nvidia.com/video-technologies/video-codec-sdk/nvenc-video-encoder-api-prog-guide/index.html#emphasis-map

    


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