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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

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QtGstreamer Appsink: hangs and slow/unusable samples

my goal is to create a simple custom sink able to receive data from a pipeline which should than be used for different applications (recording, broadcasting, internal buffering, etc.). In my first attempt the idea is to retransmit a Http(s)/Udp/etc.…
Gianks
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How to specify GStreamer path for Qt-GStreamer build

I have gstreamer installed on my target system in /opt/gstreamer. When I try to build Qt-Gstreamer on my development host using cross-compiling tool I get: * GStreamer (0.10.33 or higher) Required to build…
Dmitrii Mikhailov
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Qt 5 + QMediaPlayer (Video Widget example) is unable to play Video file

I am trying Qt 5 with videowidget example in which QMediaplayer is used to play video file. It gives me error like Error: "GStreamer encountered a general stream error." when i play any mp4 file in it. It is not able to play a single file. But on…
Keyur Patel
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Building ( Cmake ) QtGStreamer on Mac OS X

I have a problem with Qt binding for Gstreamer. Im using procedure from README from QtGStreamer package but I get some error while executing cmake command. Basic info: Mac OS X v. 10.6.8 GStreamer v. 0.10.36 + dependencies (installed…
madman
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QML and QtGStreamer within plugin

I'm trying to prepare QML plugin to play video on embedded device in a way that other developers can use it without much hassle. However the way it is currently proposed requires almost always writing some C++ wrapper around your QML application.…
yatsek
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Compiling error on connect() with QtGstreamer

I'm trying to watch messages that are passing through a QtGstreamer pipeline. Here is the code in question: //pipeline is of type: QGst::PipelinePtr pipeline->bus()->enableSyncMessageEmission(); QGlib::connect(pipeline->bus(), "sync-message",…
karlphillip
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Dynamic Recording Audio and Video with Gstreamer in QT

I want to build an application on gstreamer. This application must show video and audio same time and it can be record audio and video on ".mp4" file. Application has record button and if user clicks this button, record must start or stop. So this…
mkemalgokce
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Gstreamer bframe-pframe problems

There are n cameras in the system, these n cameras are transmitted in a healthy way when h264 decode/en code all our WebRTC street cameras are transmitted via gstreamer. However, in this case, when the h264 decode/encode camera will be reviewed by…
OguzhanKaracorlu
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How to build a Gstreamer pipeline to receive UDP (in QT4)

I am trying to get a UDP stream (QT4 app) and generate a pipeline using Gstreamer. I created this gst_parse_launch, which I tested and worked in CLI. But I can't get it to work in QT4. GstElement *pipeline = gst_parse_launch("udpsrc port=1234 !…
ycdts
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GStreamer pipeline stops playing after fast and shaky camera movement

I'm working on a video streaming wearable device. During the tests, it came up that the pipeline clock and stream stop while fast walking or running. It's bizarre behaviour because in debug messages there are no errors about the broken pipeline,…
Szczempus
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QML module not found (QtGStreamer)

I have been trying to install gstreamer on my ubuntu 18.04 and to integrate it into a Qt 5.14.1 project. (Quick heads-up: I am not a pro in things Qt and Linux.) These are the installation steps I followed in order to install gstreamer: git clone…
Kalumo
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How to use qt-gstreamer with qtquick2videosink on Qt5 on Raspberry Pi3

I built qt-gstreamer from source code on GitHub (version 1.2.0). Then I tried to run qmlplayer2 application (built from qt-gstreamer and use qtquick2videosink) on qt5 on Raspberry Pi3 but I got the following error at…
TuanPM
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Error when compiling QtGstreamer using Cmake and Mingw32 Compiler comes with QT 5.12.3

I was trying to compile the GStreamer wrapper for QT, so I downloaded the 2 packages iam using QT 5.12.3 and Mingw32 7.3.0 gstreamer-1.0-devel-mingw-x86-1.16.0.msi gstreamer-1.0-mingw-x86-1.16.0.msi Then I installed them, and add the bin folder to…
user7179690
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GStreamer and Qt 5.10

So i'm currently using Ubuntu 18 and i'm having trouble with GStreamer and Qt 5.10 To start, all Qt example return the same error: CameraBin error: "Device '/dev/video0' does not support progressive interlacing" To make sure linux does recognize…
Gimenez
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Using qtgstreamer with Qt and Raspberry Pi

I am having a problem with decoding a video stream from my raspberry pi to a laptop with a Qt GUI. My pipeline for the pi is (using the adafruit raspberry pi camera): raspivid -t 999999 -h 480 -w 640 -fps 25 -hf -b 2000000 -o - | gst-launch-1.0 -v…
David Gitz
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