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Sur d’autres sites (13726)

  • 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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