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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 (...)

  • Les sons

    15 mai 2013, par

  • Les images

    15 mai 2013

Sur d’autres sites (4667)

  • Generating High Quality Video from Images with Audio and Transistions(C#)

    18 octobre 2016, par M Imtiaz

    I am Making a Windows Application to Create a Video from a set of Images, also i want to add Audio and Transition Affects.
    i have searched Over the Internet and Found Some Libraries Like
    AForge.NET(FFMPEG Based), Splicer(https://splicer.codeplex.com/) and FFMPEG itself Command Based here.

    i am able to create video using all of the above libraries but these have certain limitations or may be i dont know the usage
    like

    1) AForge.Video.FFMPEG can create Video but there is no Option to add Audio

    2) FFMPEG Command Based can create Video from Images along with audio but Transitions found were only Fade In, Fade out(http://www.bogotobogo.com/FFMpeg/ffmpeg_fade_in_fade_out_transitions_effects_filters.php)

    3) Splicer.dll is working well it has All the Options for Adding Transitions and Audio but the quality of Video is not satisfactory.

    Now My Questions is how i can achieve my desired quality video along with Transitions and Audio from a set of Images.
    Thank you

  • Keep blender rendered high quality images during video creation (ffmpeg)

    31 janvier 2021, par Tobi

    I created an animation in Blender and exported each frame as high quality picture. However, putting them together using ffmpeg reduces the quality (I also tried the video export from Blender but I am not an expert in video codecs and all related topics). I converted the single frames into a video by using the following command :

    


    ffmpeg -f image2 -i %4d.png -r 60 -crf 0 -vcodec libx264 blenderVideo.mp4

    


    The resulting frame from the video is given in the picture below. As one can see, the shining rings are clearly visible but in the original picture it is completely smooth. Any idea how to overcome this problem ? Maybe it is stupid to think that I can get the original qualities. Probably, if I upload it somewhere, it gets compressed in any case and it is not worth to investigate into that topic too much. However, I am interested and there are specialists out who can directly tell if it is worth or not.

    


    Compressed image via ffmpeg

    


  • FFMPEG create h264 stream that has high quality keyframes and low quality interframes

    13 mai 2012, par Mat

    How can I, using FFMPEG (clt or API) create a H264 stream that has every 25 frames or so a very high detailed high quality frame and interframes have very low bitrate ? I want to distribute the bitrate such that i have some highquality frames to identify spatial details and low quality frames to identify temporal effects. And preferrably within a single stream.

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