How can I convert a RTMP stream to video file using FFmpeg?

Question

I am trying to convert an RTMP stream to a video file using FFmpeg, but keep getting an error,

rtmp://localhost:1935/live/app: Broken pipe

on using:

ffmpeg  -i rtmp://localhost:1935/live/app -acodec copy -vcodec copy test.mp4

streaming using FFmpeg as:

ffmpeg -i ./video.mp4 -c copy -f flv -listen 1 -flvflags no_duration_filesize  rtmp://localhost:1935/live/app

Answer 1

Use:

ffmpeg  -i rtmp://localhost:1935/live/app  test.mp4

Copy only:

ffmpeg  -i rtmp://localhost:1935/live/app -map 0:v -c copy -map 0:a -c copy -strict -2 test.mp4