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Sur d’autres sites (13722)

  • How do i change the resolution of a outgoing hls stream using ffmpeg ?

    31 juillet 2022, par 8f7an

    I am using nginx with ffmpeg to stream my live stream and i want to reduce the resolution of it, but it plays the video in high quality everytime

    


    here's my nginx code

    


    events {}
rtmp {
    server {
        listen 1935;

    application src {
        live on;
        exec_push ffmpeg -vcodec libx264 -vprofile baseline -g 10 -s 300x200 -acodec aac -ar 44100 -ac 1 -f flv rtmp://127.0.0.1/live;
        
    }


        application live {
            live on;

            #turn on hls
            hls on;
            hls_continuous on;
            hls_path /tmp/hls/ ;
            hls_fragment 4s;
            hls_playlist_length 12s;
            hls_nested on;
            record off;

            #disable stream consumption from rtmp

            on_publish http://auth_server:4000/auth;
         }

    }
}


    


  • ffmpeg to YouTube with tee mux giving resolution warning (65535x65535), which is not optimal

    25 juillet 2022, par kuldeep chopra

    I am streaming to YouTube and Facebook using ffmpeg , also writing data into disk (recording).

    


    it's working fine on Facebook and recording but on YouTube it's giving warning that is

    


    Please check the video resolution. The current resolution is (65535x65535), which is not optimal.

    


    and output on YouTube is also 1:1 aspect ratio due to the above resolution.

    


    I am using tee mux in ffmpeg Command.

    


    ffmpeg -f dshow -framerate 30 -i video="Integrated Webcam":audio="Microphone Array (Intel® Smart Sound Technology (Intel® SST))" -s 1920x1080 -c:v libx264 -r 30 -preset ultrafast -tune zerolatency -crf 28 -pix_fmt yuv420p -c:a aac -strict -2 -ac 2 -b:a 128k -t 4 -map 0 -f tee "[f=ismv]pipe:1 | [f=flv]rtmps ://youtube | [f=flv]facebook"

    


  • ScreenRecording a headless browser using xvfb with ffmpeg or jmf jar(java) shows distorted video in container, if the resolution greaterthan 1024x768

    4 août 2022, par Vigneshwar A S

    I am getting a proper video output, if i used to record a screen resolution for about 1024x768(max) or lesser. but
whenever i used to increase the resolution like "1600x900 or 1920x1080 or greater than
1024x768 (approx.)", i am getting distorted video.

    


    distorted image(frame of a video) with 1600x900 resolution
https://i.stack.imgur.com/iajzC.png

    


    1600x900 video information : https://i.stack.imgur.com/yutDq.png

    


    proper image(frame of a video) with 1024x768 resolution
https://i.stack.imgur.com/NcUt1.png

    


    1024x768 video information : https://i.stack.imgur.com/TeaW7.png

    


    I am using Xvfb & [both ffmpeg and jmf jar (either)] to record a headless browser inside docker container.

    


    I am getting a proper output, if i used to screen record an actual display(monitor), I am facing this issue only when i record the display inside docker (specifically headless browser) by using x11grab.

    


    To Start the Xvfb and ScreenRecording

    


    


    Xvfb :5 -screen 0 1600x900x16 &

    


    ffmpeg -nostdin -hide_banner -nostats -loglevel panic -video_size
1600x900 -framerate 30 -f x11grab -i :5 output.mp4 &

    


    


    if i replaced 1600x900 with 1024x768 or lesser than this, it is providing a proper video without any distortion.

    


    Am I missing anything ??

    


    Please help !

    


    


    Thanks for your time