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Sur d’autres sites (8368)

  • FFmpeg adding image watermark to video process is very slow

    22 juin 2024, par Tushar Lathiya

    I am adding image watermark to video with help of FFmpeg but FFmpeg takes an inordinate amount of time with the below command-

    



    String[] cmd = {"-i",videoPath, "-i", waterMark.toString(),"-filter_complex","overlay=5:5","-codec:a", "copy", outputPath};


    



    so i tried another command which was little bit faster but increase output file size(which i do not want)

    



    String[] cmd = {"-y","-i", videoPath, "-i", waterMark.toString(), "-filter_complex", "overlay=5:5", "-c:v","libx264","-preset", "ultrafast", outputPath};


    



    Some one please explain to me how to increase the speed of FFmpeg watermarking speed without increasing the size of output.
 Thanks.

    


  • How can I watch my video from a sdp file ?

    7 avril 2019, par Marco Peca

    I’m using ffmpeg to create a streaming. It works fine. I have a server and with ffplay I can watch my stream.
    My only (big) constraint is real time.

    I have to embed it into an HTML page accessible from mobile devices.
    I tried with HTML5 video tag but I can’t include sdp files into it.

    With ffmpeg I create a stream from my webcam. I have also created the sdp file but in HTML5 doesn’t work.

    The code is here :

    ffmpeg server : 

    sudo ffmpeg -re -f video4linux2 -i /dev/video0 -fflags no buffer rtp://224.10.20.30:20000

    file.sdp

    v=0
    
o=- 0 0 IN IP4 127.0.0.1
    
s=No Name
    
c=IN IP4 224.10.20.30
    
t=0 0
    
a=tool:libavformat 55.7.100
    
m=video 20000 RTP/AVP 96
    
b=AS:200
    
a=rtpmap:96 MP4V-ES/90000
    
a=fmtp:96 profile-level-id=1

    ffplay : (It works)

    ffplay file.sdp

    How can I view the stream in a browser ?

  • ffmpeg combine two commands compress and watermark [on hold]

    13 mars 2019, par tour travel

    I am trying to compress and also add water mark on video via ffmpeg each command work great

    ffmpeg -i vid.mp4 -s 480x320 -acodec aac -strict -2 -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 output.mp4

    And :

    ffmpeg -i vid.mp4 -i logo.png -filter_complex "hflip[flipped];[flipped]overlay=x=20:y=20" -strict -2 out.mp4

    But I want to do both command together, What I tried :

    ffmpeg -i vid.mp4 -s 480x320 -acodec aac -strict -2 -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 && -i logo.png -filter_complex "hflip[flipped];[flipped]overlay=x=20:y=20" -strict -2 output.mp4

    I used && and | or , but none of these working as expected, any solution ?

    Order is important, It should first compress video then add water
    mark.

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