picam with nginx-rtmp-module issue

[viveksanagari]

Hi, I am trying to use picam with the nginx-rtmp-module (i.e, https://github.com/iizukanao/picam#using-picam-in-combination-with-nginx-rtmp-module ). I want to make use of nginx-rtmp-module for its Nginx HTTP control module features (i.e, https://github.com/arut/nginx-rtmp-module/wiki/Control-module).

As of my knowledge, I have made all the necessary configuration specified from the README files. I am trying to use the RECORD sub-module from the HTTP module.

As the README suggests

curl "http://localhost:8080/control/record/start?app=myapp&name=mystream&rec=rec1" curl "http://localhost:8080/control/record/stop?app=myapp&name=mystream&rec=rec1" the above commands as examples to start/stop recording the stream.

In my case, after starting picam with ./picam --alsadev hw:1,0 --tcpout tcp://127.0.0.1:8181

I am using: curl -i "http://localhost:8080/control/record/start?app=webcam&name=mystream&rec=rec1"

The output shows as:

root@raspberrypi:/home/pi/picam# curl -i "http://localhost:8080/control/record/start?app=webcam&name=mystream&rec=rec1" HTTP/1.1 200 OK Server: nginx/1.15.8 Date: Fri, 25 Jan 2019 16:40:14 GMT Content-Length: 35 Connection: keep-alive /tmp/rec/mystream-1548434414all.flv

But I couldn't find /tmp/rec/mystream-1548434414all.flv file.

Please help, what am I doing wrong..

[viveksanagari]

Update: I have forgotten to mention that I am using them with out-of-the-box picam-streamer (https://github.com/iizukanao/picam-streamer) solution and need help to fix the problem mentioned in the above comment. Thank you for any help in advance.

[iizukanao]

@viveksanagari Do you see any error message in your nginx log file?

[viveksanagari]

Hi @iizukanao Thank you very much for responding.

I have these log files for nginx: /usr/local/nginx/logs/access.log /usr/local/nginx/logs/error.log

When I use this command, curl -i "http://localhost:8080/control/record/start?app=webcam&name=mystream&rec=rec1"

The output shows as:

root@raspberrypi:/home/pi/picam# curl -i "http://localhost:8080/control/record/start?app=webcam&name=mystream&rec=rec1" HTTP/1.1 200 OK Server: nginx/1.15.8 Date: Fri, 25 Jan 2019 16:40:14 GMT Content-Length: 35 Connection: keep-alive tmp/rec/mystream-1548669298all.flv

There is nothing logged into /usr/local/nginx/logs/error.log. However, /usr/local/nginx/logs/access.log log has a new entry as below. 127.0.0.1 - - [28/Jan/2019:09:51:02 +0000] "GET /control/record/start?app=webcam&name=mystream&rec=rec1 HTTP/1.1" 200 35 "-" "curl/7.52.1"

[iizukanao]

@viveksanagari Thanks for the feedback. Can you also make sure that you can record other stream that is not produced by picam without problem?

[viveksanagari]

Hi @iizukanao Sorry for late reply, I was not sure how to test a stream that is not produced by picam. I tried to stream with Open Broadcast Software (OBS) and the output was:

root@raspberrypi:/home/pi# curl -i "http://localhost:8080/control/record/start?app=webcam&name=mystream&rec=rec1" HTTP/1.1 204 No Content Server: nginx/1.15.8 Date: Mon, 28 Jan 2019 18:14:59 GMT Connection: keep-alive

[iizukanao]

@viveksanagari I don't know what that 204 response means. Can you record OBS stream without any problem?

[viveksanagari]

Hi @iizukanao I was not able to record from OBS. I am not sure it is picam, or it is me doing something wrong.

[iizukanao]

@viveksanagari Please make sure that you understand how to correctly use nginx-rtmp-module first. Unfortunately, I don't have time to look into this problem further right now without more detailed info. Please attach Wireshark packet capture if you can.