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• Convert mp3/audio source to RTSP or something that is live streamable

  20 mars 2019, par spezticle

  I’ve got an mp3 that’s continually being written to. I’m trying to get some HTML5 tag or something to play this file and it will, but it stops at the end of the file as it was loaded in the moment the webpage was pulled up. If I refresh the page, the new length is reflected but position is lost.

  This is streaming, but not live.

  I’m using ffmpeg to push an audio source from a local computer to a remote web server. That webserver receives the file with ffmpeg and writes it to the mp3. Is there no better way of doing this that isn’t absurdly complicated ?

• Nginx can't record live streaming results for medium resolution

  1er juillet 2021, par firman alislami

  when i finished live streaming, the live streaming result file was not recorded for medium resolution...

  


     rtmp {
server {
    listen 1935;
    chunk_size 4096;            
application live {
    live on;
    exec_push /usr/bin/ffmpeg -re -i rtmp://localhost/live/$name 
   -async 1 -vsync -1
    -c:v libx264 -c:a aac -b:v 200k  -b:a 34k  -vf "scale=240:trunc(ow/a/2)*2"  -tune zerolatency -preset superfast -crf 23 -f flv rtmp://localhost/hls/$name_low
    -c:v libx264 -c:a aac -b:v 300k  -b:a 64k  -vf "scale=360:trunc(ow/a/2)*2"  -tune zerolatency -preset superfast -crf 23 -f flv rtmp://localhost/hls/$name_low360
    -c:v libx264 -c:a aac -b:v 800k  -b:a 64k  -vf "scale=480:trunc(ow/a/2)*2"  -tune zerolatency -preset superfast -crf 23 -f flv rtmp://localhost/hls/$name_low480
    -c:v libx264 -c:a aac -b:v 1800k  -b:a 128k -vf "scale=720:trunc(ow/a/2)*2"  -tune zerolat#-acodec  copy -vcodec copy -f flv rtmp://localhost/hls/$name;
}
application hls {
    live on;
    deny play all;
    hls on;
    hls_fragment 4;
    hls_playlist_length 20;
    hls_path /mnt/hls;
    hls_variant _mid BANDWIDTH=1800000,RESOLUTION=1280x720; 
    hls_variant _low480 BANDWIDTH=80000,RESOLUTION=858x480;
    hls_variant _low360 BANDWIDTH=300000,RESOLUTION=480x360;
    hls_variant _low BANDWIDTH=200000,RESOLUTION=352x240; 
    hls_nested on;
        record all;
        record_path /mnt/record/;
        record_unique on;
            exec_record_done ffmpeg -y -i $path -acodec libmp3lame -ar 44100 -ac 1 -vcodec libx264 $dirname/$basename.mp4;
            }
    }
    


  


  }ency -preset superfast -crf 23 -f flv rtmp ://localhost/hls/$name_mid ;
#-c:v libx264 -c:a aac -b:v 1024k -b:a 128k -vf "scale=1080:trunc(ow/a/2)*2" -tune zerolatency -preset superfast -crf 23 -f flv rtmp ://localhost/hls/$name_high
#-c copy -f flv rtmp ://localhost/hls/$name_src ;

  


• FFMPEG multi bitrate wowza live streaming keyframe alignment

  27 septembre 2013, par Michael Dietriech

  I tried live streaming with ffmpeg to wowza but even though i use -r 25 -g 50 -keyint_min 50 -sc_threshold 0, the keyframes don't seem to be aligned at the same place of the stream for all the outputs so when Wowza makes chunks for HLS out of it, the keyframes don't get alligned at the beginning of each chunk.

  Any suggestions ?