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Autres articles (104)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Contribute to a better visual interface

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    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (7285)

  • retriving video details with ffprobe in php

    15 juillet 2014, par Roohbakhsh Masoud

    i’m using this command for retrieve video information in ubuntu terminal :

    ffprobe -show_streams sample.mp4

    this command show all information about video in terminal, but when i use this command in php and use exec function to retrieve result , return

    string(0) ""
    
{}

    how i can retrieve result in php ?

    my code :

        public function information($ffmpeg,$file)
    
    {
    
      $info = exec("$ffmpeg -show_streams $file");
    
      return $info;
    
    }

  • retriving video details with ffprobe in php

    16 mai 2023, par Roohbakhsh Masoud

    i'm using this command for retrieve video information in ubuntu terminal :

    



    ffprobe -show_streams sample.mp4


    



    this command show all information about video in terminal, but when i use this command in php and use exec function to retrieve result , return

    



    string(0) ""
{}


    



    how i can retrieve result in php ?

    



    my code :

    



        public function information($ffmpeg,$file)
    {
      $info = exec("$ffmpeg -show_streams $file");
      return $info;
    }


    


  • Why rtp streaming of a .avi video file fails to be received ?

    14 juillet 2016, par user1914692

    In ffmpeg streamingGuide, it writes :

    ffmpeg -re -f lavfi -i aevalsrc="sin(400*2*PI*t)" -ar 8000 -f mulaw -f rtp rtp://127.0.0.1:1234 &
    
ffplay rtp://127.0.0.1:1234

    I want to use a real video file to replace the artificial signal.
    Then I write the below at terminal A :

    ffmpeg -re -i outputFile.avi -f mulaw -f rtp rtp://127.0.0.1:1234

    it seems it is working :
    The frame information is counting. Here are information on the terminal A at the end :

    frame=  309 fps= 29 q=31.0 Lsize=     931kB time=00:00:10.30 bitrate= 740.8kbits/s     video:922kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.030813%

    When the frame at terminal A is still counting (not finished), I type the below at terminal B :

    ffplay rtp://127.0.0.1:1234

    But it does not work :
    The error information is :

    [udp @ 0x7fb370001500] bind failed: Address already in useB f=0/0   
    
rtp://127.0.0.1:1234: Input/output error

    Why ?

    [Update 1] Following the instruction from Camille Goudeseune
    I used the foo.sdp
    The input for the ffmpeg terminal is :

    ffmpeg -re -i out.avi -f mulaw -f rtp rtp ://127.0.0.1:1235

    The terminal for ffplay is :

    ffplay -i foo.sdp

    The ffplay terminal shows a lot of error, without images.

      libpostproc    52.  2.100 / 52.  2.100
    
[sdp @ 0x7fafdc0008c0] Undefined type (30)    0KB sq=    0B f=0/0   
    
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 25453 86 0B f=0/0   
    
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-25367)
    
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 25453 86
    
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-25367)
    
[sdp @ 0x7fafdc0008c0] Unhandled type (27) (See RFC for implementation details
    
[sdp @ 0x7fafdc0008c0] Undefined type (31)    0KB sq=    0B f=0/0   
    
[sdp @ 0x7fafdc0008c0] Unhandled type (27) (See RFC for implementation details
    
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 62414 6130B f=0/0   
    
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-61801)
    
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 62414 613
    
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-61801)
    
[h264 @ 0x7fafdc003020] non-existing PPS referencedq=    0B f=0/0   
    
[h264 @ 0x7fafdc003020] non-existing PPS 0 referenced
    
[h264 @ 0x7fafdc003020] decode_slice_header error
    
[h264 @ 0x7fafdc003020] Invalid mix of idr and non-idr slices
    
[sdp @ 0x7fafdc0008c0] Undefined type (31)    0KB sq=    0B f=0/0   
    
[sdp @ 0x7fafdc0008c0] Unhandled type (29) (See RFC for implementation details
    
[sdp @ 0x7fafdc0008c0] Unhandled type (26) (See RFC for implementation details
    
[sdp @ 0x7fafdc0008c0] Unhandled type (27) (See RFC for implementation details
    
    Last message repeated 2 times  0KB vq=    0KB sq=    0B f=0/0   
    
[sdp @ 0x7fafdc0008c0] Undefined type (31)
    
[sdp @ 0x7fafdc0008c0] Unhandled type (26) (See RFC for implementation details
    
[sdp @ 0x7fafdc0008c0] Unhandled type (25) (See RFC for implementation details
    
[h264 @ 0x7fafdc003020] insane cropping not completely supported, this could look slightly wrong ... (left: 2, top: 2)
    
[h264 @ 0x7fafdc003020] illegal aspect ratio
    
[h264 @ 0x7fafdc003020] missing picture in access unit with size 84589
    
[h264 @ 0x7fafdc003020] Partitioned H.264 support is incomplete
    
[h264 @ 0x7fafdc003020] insane cropping not completely supported, this could look slightly wrong ... (left: 2, top: 2)
    
[h264 @ 0x7fafdc003020] illegal aspect ratio
    
[h264 @ 0x7fafdc003020] insane cropping not completely supported, this could look slightly wrong ... (left: 2, top: 2)
    
[h264 @ 0x7fafdc003020] illegal aspect ratio
    
[h264 @ 0x7fafdc003020] no frame!
    
[h264 @ 0x7fafdc003020] RTP: missed 2563 packetsB sq=    0B f=0/0   
    
[sdp @ 0x7fafdc0008c0] Undefined type (30)
    
    Last message repeated 1 times
    
[sdp @ 0x7fafdc0008c0] Undefined type (31)

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