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Questions tagged [qtgstreamer]

Questions related to QtGStreamer, which provides C++ bindings for GStreamer with a Qt-style API.

QtGStreamer provides C++ bindings for GStreamer with a Qt-style API, plus some helper classes for integrating GStreamer better in Qt applications.

For more details visit http://gstreamer.freedesktop.org/wiki/QtGStreamer

43 questions
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How to use GStreamer in Visual Studio 2010?

Do I have to compile GStreamer on my own? Can I do it using Visual Studio 2010? I'm struggling to find a good step-by-step guide with instructions on how to do this. Is there a good one? My objective is to build applications using QtGstreamer on…
karlphillip
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Gstreamer Missing plugins

I am trying to run certain pipelines on the Command prompt for playing a video and I am often getting these errors/messages/warnings : WARNING: erroneous pipeline: no element "qtdemux" WARNING: erroneous pipeline: no element "playbin2" WARNING:…
Raulp
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1 answer

Retrieving video size using QtGStreamer returns ZERO

I'm playing with QtGStreamer 0.10.0 and I'm trying to retrieve the video size but it's returning ZERO for height and width values. However, I am able to play the video with no problems on a QImage. QGst::init(); pipeline =…
karlphillip
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0 answers

Bind Qt with QtGStreamer

I am trying to make a simple qt c++ VoIP application, when I searched I found the QtGStreamer Lib and wanted to make it work. I download the latest version 1.2 from here.When I went to the example folder and tried to compile the VoIP example I got…
user7179690
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2 answers

GStreamer error in Qt5

When I try to launch my videowidget application it gives me the error: (videowidget:9305): GLib-GObject-WARNING **: cannot register existing type 'GstObject' (videowidget:9305): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0'…
Inception
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3
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1 answer

Bitbake does not populate so symlinks to shared libaries

In my Yocto layer I have such bitbake recipe for Qt Gstreamer libraries: SUMMARY = "QtGStreamer libraries for Qt5" DESCRIPTION = "QtGStreamer is a set of libraries and plugins providing C++ bindings for GStreamer with a Qt-style API plus some helper…
lewiatan
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3
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1 answer

Using Gstreamer in Windows

I usually use Gstreamer in Linux and there I install it simply using the command yum install gstreamer... and then I can play an RTP stream by the command gst-launch-0.01 playbin2 ... Now I need to do the same in Windows and I tried to download the…
user573014
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2
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1 answer

QtGstreamer camerabin2 usage

I'm working on olimex a13 board with just eglfs i.e, no windowing system. Because of this Qt Multimedia stuff video and camera aren't working as Qt uses Gstreamer which in turn needs X. So I'm using QtGstreamer library which is here. I've followed…
ramtheconqueror
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Qt+GStreamer: How to take a snapshot while playing live video stream

I've developed a video player based on Qt and QtGstreamer. It is used to play live streams (RTSP). I have to add the possibility for the user to take snapshots while he is playing a live stream without perturbing the video playback. Here the graph…
Thom Armax
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1 answer

Using Gstreamer 1.0 with Qt Multimedia

According to the latest docs for Qt 5.5, Gstreamer 1.0 is supported via Qt Multimedia. However, I can't seem to find much more information about it (the guy from this post seems to be in the same boat). I need 1.0 support in Windows so I am…
Nick
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1 answer

gstreamermm and Qt compilation error

I am new to Qt and I am trying to run basic gstreamermm example with Qt. When I include gstreamermm.h in main.cpp of qt, I get compilation error. I can not understand what does that error says. I am using Qt creator for this example. #include…
sap
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How to prevent QT from drawing to the screen? (prevent flickering when video played with gstreamer)

This is QT5. Its on an embedded Yocto system, with QT drawing to the framebuffer, no X11. The problem is this. I want to play a video using gstreamer. So, I tried to launch gstreamer with gst-launch-1.0 linked to a touch event in QT. Problem is, it…
bodangly
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QtGStreamer not producing expected output on streaming from camera

I am trying to use QtGStreamer to stream camera frames and render it onto a QML window. I have a simple Gstreamer pipeline which works fine when the I use gst-launch-1.0 gst-launch-1.0 autovideosrc ! videoscale ! video/x-raw, width=480,height=270 !…
Luca
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Gstreamer Pause/Resume pipeline issue

I am using qt-gstreamer 1.2 with gstreamer 1.2.4 on nVidia TX1 running Ubuntu 14.04. I am having a pipeline with camera preview + recording + Ethernet Streaming + Wifi Streaming and i want to make pipeline dynamic. ex i can add/remove…
Ritesh Panchal
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1 answer

QtGstreamer: AppSink & tee

i've written a custom QtGStreamer appsink which is working fine. I'm in trouble trying to split with a tee the pipeline to process recording of the stream because the pipeline starts to preroll but never goes in playback state. My…
Gianks
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