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Médias (91)

Autres articles (89)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP 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" (...)

  • 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 (4095)

  • FFMPEG Replacing black color fragments with alpha channel transperency

    31 décembre 2017, par kostya572

    I have "file.mov" video. It has a lot of blank black color fragments that have different durations.

    I need to replace black color fragments that durates more than 5 seconds with transparency ? Is that possible to add some alpha channel for that purpose ?

  • Revision 6b223fcb58 : Enable decoder to pass through color space info This commit added a field to vp

    9 janvier 2015, par Yaowu Xu

    Changed Paths :
     Modify /test/encode_test_driver.cc


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/vp9_iface_common.h


     Modify /vpx/vpx_image.h


     Modify /vpx_scale/yv12config.h



    Enable decoder to pass through color space info

    This commit added a field to vpx_image_t for indicating color space,
    the field is also added to YUV_BUFFER_CONFIG. This allows the color
    space information pass through the decoder from input stream to the
    output buffer.

    The commit also updated compare_img() function with added verification
    of matching color space to ensure the color space information to be
    correctly passed from encode to decoder in compressed vp9 streams.

    Change-Id : I412776ec83defd8a09d76759aeb057b8fa690371

  • changing background color after merging videos using ffmpeg

    27 juillet 2019, par S.T

    i am putting 2 movies side by side and i want to change the background color in the spaces that left near them.

    this command is taking 2 videos and placing then one on top the other. there is a gap between them and also margins from all sides. i want that all the gaps ( the rectangle that hosts the videos) will be in a specific color(it is now green, i think its the default)

    ffmpeg -threads 11 -i 1.mp4 -i 2.mp4 -i logo.png -filter_complex 
    
[0:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=yellow[a]; 
    
[1:v]pad=width=iw+20:height=ih+20:x=10:y=10:color=red[b];
    
nullsrc=size=1080x1080[base];[a]setpts=PTS-STARTPTS,scale=666x500[top];
    
[b]setpts=PTS-STARTPTS,scale=666x500[bottom];
    
[base][top]overlay=207:35[tmp1];[tmp1][bottom]overlay=207:545[video];
    
[0:a]apad[apa];[1:a]apad[apa1];[apa] 
    
[apa1]amix=inputs=2:duration=longest[audio];[2:v]scale=150:60[ovrl]; 
    
[video][ovrl]overlay=227:55[videoandlogo] -map [videoandlogo] -map 
    
[audio] -b 10000k -t 11 out.mp4

    I want to change the default color to one that i decide. Thanks.

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