How can I convert RTMP nginx livestream from Flv to mp4 file? - nginx

Question

I have an RTMP server running using nginx that records the livestream into flv files but what I want to do is record the files into a mp4 format... Here’s my nginx.conf file:
I want when I rtmp livestream going I can convert it from flv to an mp4 file... How can I do this? Here is my nginx.conf file:
​
user  www-data;
worker_processes auto;
rtmp_auto_push on;
events {
    worker_connections  1024;
}
rtmp {
    server {
        listen 1935;
        chunk_size 4096;
        application s9-live {
            exec ffmpeg -i rtmp://localhost:1935/s9-rtmp/$name
            \-c:a libfdk_aac -b:a 128k -c:v libx264 -b:v 2500k -f flv -g 30 -r 30 -s 1280x720 -preset superfast -profile:v baseline rtmp://localhost:1935/s9-rtmp/$name;
            live on;
            meta copy;
            hls_cleanup off;
            record all;
            record_path /rec/videos;
            record_max_size 1k;
            record_unique on;
            record_suffix %y%m%d_%H%M%S.flv;
            exec_record_done ffmpeg -y -i $path -acodec libmp3lame -ar 44100 -ac 1 -vcodec libx264 $dirname/$basename.mp4;
        }
    }
}
http { 
    default_type application/octet-stream;
    server { 
        listen 8000; 
        location /tv { 
            root /tmp/hls; 
        }
\# This URL provides RTMP statistics
        location /stats {
            rtmp_stat all;
        }
        location /control {
            rtmp_control all;
        }
    }
    types {
        application/vnd.apple.mpegurl m3u8;
        video/mp2t ts;
        text/html html;
    } 
}
The application runs well without any issues at all the only if possible that I would like to know is how to get an mp4 or the recorded stream converted from the flv files.

Answer 1

You already have the command to convert flv to mp4 in your config:
exec_record_done ffmpeg -y -i $path -acodec libmp3lame -ar 44100 -ac 1 -vcodec libx264 $dirname/$basename.mp4;
While recording is on, you will only see an flv file. Once the recording is done, exec_record_done is triggered and the flv is converted to an mp4 file. You will then have an flv and a corresponding mp4 in your folder.