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  • L’utiliser, en parler, le critiquer

    10 avril 2011

    La première attitude à adopter est d’en parler, soit directement avec les personnes impliquées dans son développement, soit autour de vous pour convaincre de nouvelles personnes à l’utiliser.
    Plus la communauté sera nombreuse et plus les évolutions seront rapides ...
    Une liste de discussion est disponible pour tout échange entre utilisateurs.

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (10713)

  • FFMPEG Speed up video (loss of audio is fine)

    14 mai 2015, par adsun

    I’m trying to speed up a video by 2X by using this command.

    ./ffmpeg -i input.mp4 -filter:v setpts=(1/2)*PTS output.mp4

    But I get the following error :

    Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

    Can someone help me with the correct command to do it ? The input video is a valid MP4 file. It is fine even if there is no audio in the video after speeding up.

  • What's right way to change playback speed with ffmpeg ?

    25 août 2016, par user2440195

    In my project i’m using ffmpeg to playback media. Currently I’m trying to implement changing of playback speed. Will it be right to drop certain packets at high rates, for example not keyframes ? Or I should rely only on changing timestamps and duration, even if performance is low(for example 4k video) and as a consequence increased speed isn’t noticable ?

  • Revision 017baf9f4b : Simplify bilateral filter search for speed Adds an internal buffer in the encod

    15 avril 2015, par Debargha Mukherjee

    Changed Paths :
     Modify /vp9/common/vp9_loopfilter.c


     Modify /vp9/common/vp9_loopfilter.h


     Modify /vp9/decoder/vp9_decodeframe.c


     Modify /vp9/encoder/vp9_bitstream.c


     Modify /vp9/encoder/vp9_encoder.c


     Modify /vp9/encoder/vp9_encoder.h


     Modify /vp9/encoder/vp9_picklpf.c


     Modify /vp9/encoder/vp9_rd.h



    Simplify bilateral filter search for speed

    Adds an internal buffer in the encoder to store the deblocked
    result to help speed up the search for the best bilateral filter.

    Very small change in performance but a lot faster :
    derflr : +0.518%

    Change-Id : I5d37e016088e559c16317789cfb1c2f49334b2b9

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