Using ffmpeg from QtMultimedia to set RTP as container media format

[raulgd]

Hi,

I'm creating an application that requires RTP as media format container for streaming, but QMediaFormat doesn't have it as an option, although I know it's supported by the ffmpeg libraries as a media format.

How can I integrate that media format if my backend is ffmpeg, I wouldn't have to have to use ffmpeg besides QtMultimedia knowing it also uses it.

Cheers

[SGaist]

Hi,

Which version of Qt are you using ?

[raulgd]

@SGaist I have Qt commercial, version 6.5.2

[SGaist]

AFAIR, you can play RTP streams directly by using the URL of the source.

[raulgd]

@SGaist I need to produce them, not play them, that's why I want to encode through QMediaFormat.
I need to produce a video stream out of the desktop and another from the camera, and encode it in AVC with RTP as container for transmission.

[SGaist]

Sorry ! I misread your requirement. I currently don't think that it's possible through QtMultimedia. It might be a feature request to be made for the ffmpeg backend. AFAIK, the current list of supported format come from what is supported on each platform.

[raulgd]

@SGaist thanks for the reply... Although ffmpeg does support RTP, I Don't see if it's available on all supported platforms or only on some.

As an alternative, I found this library https://github.com/ultravideo/uvgRTP I'll see if I can make something of it and integrate it with QtMultimedia, apparently if I get a stream of H264 (AVC) or H265 it will wrap it into (S)RTP, although only works on Windows, Mac and Linux, it would be cool if I get it to work also on iOS and Android (the platforms covered by my Qt subscription).

Maybe I'll keep this open, if I manage to get it working it could help someone else.