Question

I want to create a Qt widget that can play incoming RTP streams where the video is encoded as H264 and contains no audio.

My basic plan for implementation is this:

• Create a Phonon MediaSource object (Stream type).
• Connect it with a QIODevice subclass that provides the data
• Obtain the video data using either:
  • The JRTPLIB client library
  • The GStreamer gstrtpbin plugin. This plugin takes care depayloading the packages and decoding the video. Maybe this improves the chances that Phonon will recognize the data.

My environment:

• Ubuntu 9.10
• Qt 4.6

My questions:

• Is my approach a good one? Perhaps I’m overlooking a more obvious or simple solution?
• I’m currently experiencing this issue: when trying to play the video stream the state of the MediaObject turns to ErrorState with errorType FatalError. Can anyone tell me what I’m doing wrong?

Edit
One solution I found is using libVLC in combination with Qt, which I learned about in this thread. Here’s a code sample for the interested.
I’m still looking for a Phonon-based solution.

Ideally I would only need to provide an SDP file and job is done.

Answer 1

I was able to get it to work using the libVLC solution. I can’t garantuee that this is the best solution though as I simply stopped looking after that.

Here’s a link to the libVLC sample.