CODEWITHSUNDEEP
pythonffmpeghttp-streaming
ov1d1u
ov1d1u

Reputation: 1077

Streaming ffmpeg output over HTTP

As I am trying to connect the VLC Python Bindings with ffmpeg (see Exchange data between ffmpeg and video player) I thought that making ffmpeg to output the RTSP stream to STDOUT and "catching" it with a Python script and sending over HTTP would be a good idea. So I made a tiny HTTP server using SimpleHTTPServer from which I get the STDIN from FFMpeg and "output" it to the web.

This is the syntax I am using:

ffmpeg.exe -y -i rtsp://fms30.mediadirect.ro/live/utv/utv?tcp -acodec copy -vcodec copy -f flv - | \Python27\python.exe -u stdin2http.py

This seems to work, I can access the stream but nor the video, nor audio is playing. I tried with VLC on Windows, VLC and MPlayer on Linux and no success. Simply running

ffmpeg.exe -y -i rtsp://fms30.mediadirect.ro/live/utv/utv?tcp -acodec copy -vcodec copy -f flv - | vlc.exe -

works perfectly. So the problem seems to be when I'm writing the data from stdin to the web server. What I am doing wrong?

Upvotes: 2

Views: 7633

Answers (1)

Multimedia Mike
Multimedia Mike

Reputation: 13256

I played around with your stdin2http.py script. First, I was able to stream a media file (H.264 .mp4 file in my case) from a simple web server (webfsd) to VLC via HTTP. Then I tried the same thing using 'stdin2http.py < h264-file.mp4'. It didn't take.

I used the 'ngrep' utility to study the difference in the network conversations between the 2 servers. I think if you want to make this approach work, you will need to make stdin2http.py smarter and work with HTTP content ranges (which might involve a certain amount of buffering stdin data in your script in order to deal possible jumps in the stream).

Upvotes: 2

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