QWebKit and hdhomerun streaming

Mark81

Hello,
in a QML application I want to show the video stream from an hdhomerun product:

http://www.silicondust.com/products/hdhomerun/hdhomerun-connect-eu/

Here the API documentation:

https://www.silicondust.com/hdhomerun/hdhomerun_development.pdf

About video streaming it says:

Video stream:
Option 1: libhdhomerun video socket support:
The device-video API handles the video UDP socket, target configuration, buffering, sequence checking, etc.
After setting the channel call hdhomerun_device_stream_start() to create the video UDP socket and start the video service thread.
Call hdhomerun_device_stream_recv() periodically to receive the video stream.
The hdhomerun_device_stream_start/stop() APIs call hdhomerun_device_set_tuner_target() internally as needed.

Option 2: external video socket support:
For applications with existing UDP or RTP video support use
hdhomerun_device_set_tuner_target() to set the target to the listening UDP port.
When streaming is no longer required use the same function to set the target to “none”.

If I open the direct link with a desktop browser I see the video streaming.
Doing the same with the QWebKit leads to the following warning:

** (QtWebProcess:1036): WARNING **: add element stream

and no video nor audio.

In general, to follow the direction given by the producer, what is the best way to play the video/audio stream into a QML application?

? Offline

Hi!

what is the best way to play the video/audio stream into a QML application?

Have you tried Video QML Type?

Mark81

@Wieland I'm not sure if you're talking about use Video QML to display the http stream directly, in this way:

Video {
        anchors.centerIn: parent
        width: 800
        height: 600
        source: "http://192.168.1.130:5004/auto/v10"
        autoLoad: true
        autoPlay: true
    }

It returns this error:

GStreamer; Unable to pause - "http://192.168.1.130:5004/auto/v10"
GStreamer; Unable to pause - "http://192.168.1.130:5004/auto/v10"
Error: "No URI handler implemented for "http"."

? Offline

@Mark81 The PDF you posted says that the device can stream via UDP/RTP and thus e.g. VLC can receive the stream in this way. Same should apply to GStreamer so instead of "http" try with "rtp".

Mark81

@Wieland the error is pretty the same:

GStreamer; Unable to pause - "rtp://192.168.1.130:5004/auto/v10"
Error: "No URI handler implemented for "rtp"."

I double checked I have the rtp plugins installed in /usr/lib/gstreamer-1.0/

libgstalsa.so
libgstaudioconvert.so
libgstaudioparsers.so
libgstaudioresample.so
libgstaudiotestsrc.so
libgstautodetect.so
libgstavi.so
libgstcoreelements.so
libgstcoretracers.so
libgstdebug.so
libgstid3demux.so
libgstisomp4.so
libgstlibav.so
libgstmpegpsdemux.so
libgstnavigationtest.so
libgstomx.so
libgstplayback.so
libgstpulse.so
libgstrtmp.so
libgstrtp.so
libgstrtpmanager.so
libgstrtsp.so
libgstsouphttpsrc.so
libgsttcp.so
libgsttypefindfunctions.so
libgstudp.so
libgstvideo4linux2.so
libgstvideoscale.so
libgstvideotestsrc.so
libgstvolume.so
libgstwavparse.so
libgstx264.so

? Offline

@Mark81 Does it work with VLC?

Mark81

@Wieland I was just trying this!
First of all, this is the code I use to setup the stream:

hdhomerun_discover_device_t devices[1];
hdhomerun_device_t *tuner;
bool found = hdhomerun_discover_find_devices_custom_v2(0, HDHOMERUN_DEVICE_TYPE_TUNER, HDHOMERUN_DEVICE_ID_WILDCARD, devices, 1);
if (found) {
    tuner = hdhomerun_device_create(HDHOMERUN_DEVICE_ID_WILDCARD, 0, 0, NULL);
    hdhomerun_device_set_tuner_channel(tuner, "auto:666000000");
    hdhomerun_device_set_tuner_program(tuner, "301");
    hdhomerun_device_set_tuner_target(tuner, "udp://192.168.1.131:5000");
    hdhomerun_device_stream_start(tuner);
}

I'm expecting an udp stream towards ip 192.168.1.131 - which is the machine where I can start vlc. Nothing happens, though the log says the stream is ok:

Tuner: tuner0 tuning 15 TELECITY 7 Gold (t8qam64:666MHz-301)
Tuner: tuner0 streaming udp to 192.168.1.129:5000

Of course I need to solve the issue using vlc first. Then I could try with QML.

Mark81

Of course I need to solve the issue using vlc first. Then I could try with QML.

Solved.
I need to add "no clear" to the stream setup otherwise it immediately closes the streaming if there are no client listening.

Now, vlc plays the udp/rtp stream.
Using the Video QML type I get the following:

source: "rtp://localhost:5000"
qml: No URI handler implemented for "rtp".

source: "udp//localhost:5000"
qml: UDP source timeout

I'm afraid my gstreamer installation lacks for some other rtp plugins. On the other and, the udp syntax might be wrong.

Mark81

I confirm that vlc plays the UDP stream while the Video QML Type returns:

qml: UDP source timeout

sinmki

Hi, I'm having the same issue regarding the QML Video RTP source :

GStreamer; Unable to pause - "rtp://@231.1.128.20:8854"
No URI handler implemented for \"rtp\"."

Did you eventually got this video stream to run on Qt @Mark81 ? I'm also guessing some unsupported, most probably lacking gstream stuff.. still looking into it. I use Qt5.7.0