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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)

  • avformat/matroskaenc : Remove unnecessary avio_tell(), avio_seek()

    22 janvier 2020, par Andreas Rheinhardt
    avformat/matroskaenc : Remove unnecessary avio_tell(), avio_seek()

    avio_close_dyn_buf() has a bug : When the write pointer does not point to
    
the end of the written data when calling it (i.e. when one has performed
    
a seek back to update already written data), it would not add padding to
    
the end of the buffer, but to the current position, overwriting other
    
data ; furthermore the reported size would be wrong (off by the amount of
    
data it has overwritten with padding).
    

    In order not to run into this when updating already written elements or
    
elements for which size has only been reserved, the Matroska muxer would
    
first record the current position of the dynamic buffer, then seek to
    
the desired position, perform the update and seek back to the earlier
    
position.
    

    But now that end_ebml_master_crc32() does not make use of
    
avio_close_dyn_buf() any more, this is no longer necessary.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    • [DH] libavformat/matroskaenc.c

  • what is a steps to apply filter to video using ffmpeg c program android ndk

    13 juillet 2016, par Rajkumar

    I am newbie to ffmpeg with android. i have an input video birds.mp4 that have following settings

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'birds.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf54.59.106
    
  Duration: 00:00:21.60, start: 0.000000, bitrate: 574 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x176 [
    
SAR 44:45 DAR 16:9], 440 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, flt
    
p, 127 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    i have compiled ffmpeg as *.so file for android. And i write a Jni wrapper. Now i want to apply a filter to that input video and save it to output.mp4 with same setting as shown. i know basic terminologies encoding, decoding, muxing, transcoding.
    I want to know How to do this task ? and What are the techniques involved to do this task ?

    I use ffmpeg-3.1 c-source code grabbed from github. i refer this sample it doesn’t guide me.

    If anybody experienced this problem please guide me right direction.

  • Faster Thumbnail/Image Extraction from Video using FFMPEG ?

    17 juillet 2019, par Arif Nadeem

    I am using this command to extract a series of images from a video to express them as a visual time-frame of the video.

    ffmpeg -i inputfile.mp4  -r  1  -t  12  image-%d.jpeg

    Most of my videos are in mp4 format. I am able to extract the images successfully but the time taken for extraction is too long.

    Is there any way I could reduce the time for image extraction ?

    EDIT : It is taking me 60 secs to get 8 thumbnails from a 15 sec long video encoded in MP4 format, I am doing this operation on my Galaxy Nexus(Android Phone) is there any way to improve the speed of operation, ideally I want it be less than  10secs.

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