Golang Joy4 package release example not working

Question content

• Server: https://github.com/nareix/joy4/tree/master/examples/http_flv_and_rtmp_server
• Publish: https://github.com/nareix/joy4/tree/master/examples/rtmp_publish

I started the server first, and then ran rtmp_publish to publish the flv data to the server. Unfortunately, it didn't work out.

Afterwards I tried publishing with ffmpeg:

$ ffmpeg -re -i projectindex.flv -c copy -f flv rtmp://localhost:1936/app/publish

It worked and I can play the stream using vlc.

Then I checked the logs on the server. For ffmpeg, the log contains accept and parsing url. But for rtmp_publish.go, the log only contains accept.

Correct answer

I tested using the flv file (sample-3.flv) downloaded from https:// getsamplefiles.com/sample-video-files/flv, and both ffmpeg and rtmp_publish/main.go will work. Can you test it with this file?

If it works, it's likely that the flv file you originally tested contains a stream that the package doesn't support.

I have used ffprobe to check the information of sample-3.flv:

$ ffprobe sample-3.flv
input #0, flv, from 'sample-3.flv':
  metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : lavf56.15.102
  duration: 00:00:30.08, start: 0.000000, bitrate: 7836 kb/s
  stream #0:0: video: h264 (constrained baseline), yuv420p(progressive), 1920x1080 [sar 1:1 dar 16:9], 8000 kb/s, 25 fps, 25 tbr, 1k tbn

You can check your output and compare the output with the above (but I don't know what this package supports or doesn't support).

Notes to others who want to run this example:

First of all, the source code of this package does not contain a go.mod file. Create one at the root of the repository:

$ go mod init github.com/nareix/joy4

http_flv_and_rtmp_server Default listening port 1935. So if we don't change the server, we have to change rtmp_publish/main.go:

- file, _ := avutil.open("projectindex.flv")
- conn, _ := rtmp.dial("rtmp://localhost:1936/app/publish")
+ file, _ := avutil.open("sample-3.flv")
+ conn, _ := rtmp.dial("rtmp://localhost:1935/app/publish")

ffmpeg command should be:

$ ffmpeg -re -i sample-3.flv -c copy -f flv rtmp://localhost:1935/app/publish

And the stream can be played using ffplay:

$ ffplay http://localhost:8089/app/publish

Please make sure sample-3.flv is in the current working directory when running ffmpeg or go run rtmp_publish/main.go

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