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Questions tagged [vlc-qt]

49 questions
4
votes
3 answers

How to play video backwards in qt using vlc-qt libvlc

I am developing a media player using vlc-qt , Actually I want a button which will play do the fast backward operation. I don't have the problem with the fast forward operation but not able to implement the fast backward operation, Is there any…
Vinay Kumar
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4
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1 answer

Vlc video architecture

I am studying the VLC source code in order to understand where exactly VLC writes the decoded frame to the screen. I'm basically interested in the qt ui version, and the windows and linux platforms. I have come as far as tracing from…
user3846684
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1 answer

Qt5 not found by VLC build system

I'm trying to compile VLC on a Ubuntu machine. So after getting all the additional packages required for build, when I run ./configure it says Qt5Core along with a few other Qt related libraries are not found. The problem is that I know that a…
Aritra Sur Roy
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3
votes
1 answer

Adjusting to video orientation in vlc-qt/libvlc

I use libvlc with vlc-qt to load, modify and show various streams and videos. It works well with all videos and streams which have top-left orientation. I have a video created with a smartglass, and it has top-right orientation. When i opened this…
Hajdu Gábor
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3
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3 answers

Play RTSP video with Qt VLC libary in C++

I am trying to connect my VlcVideoPlayer from VLCQt libary to any video streamed from url with rts protocol. Currently, this is my code: import QtQuick 2.0 import VLCQt 1.0 VlcVideoPlayer { property var first: true id: vidwidget …
Brykyz
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3
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1 answer

How to get frame from video by using vlc-qt

I`m using vlc-qt for decode h264 video stream but I need every frame from video (stream) for further processing. I found this link that describes the solution : https://discuss.tano.si/t/how-to-get-frame-from-video/253 I made a class that inherits…
Pouya Ahmadvand
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3
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1 answer

how to perform cmake::find_package at build stage only

I'm trying to include to make cmake-based project the library vlc-qt, as an external project from github repository. The project uses recommended way : FIND_PACKAGE(VLCQt REQUIRED COMPONENTS Widgets) cmake performs this command at configuration…
amigo421
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Building VLC-Qt library from sources

I've got: Sources of vlc-qt lib: https://github.com/vlc-qt/vlc-qt Example (from the same author): https://github.com/vlc-qt/examples/tree/master/simple-player Qt 5.14, MinGW32/Mingw_w64, cmake-gui The purpose: To build the example. The…
Cataract
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0 answers

How to add Timer in VLC Python in PYQt5?

I have use VLC Python binding for media Player Gui and I want to add Timer to the Below Slider its like 0.00:0.00 (current video time : total duration of video) how can i add this ?? How to callback the current playing time and display as label…
Milan Soliya
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1
vote
1 answer

A warning message “No matching signal for”

I'm using qt-ros based on qt4 to build applications. But there is a problem that signal & slot does not work. The vlc-qt library I'm using provides a signal function called played, as shown in the link below. vlc-qt I try to connect to the…
bgyooPtr
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3 answers

I built vlc but there isn' t any interface (linux)

I used apt build-dep vlc I installed all libvlc- packages. I also installed all the packages of the guide https://wiki.videolan.org/UnixCompile. I built vlc 3.0 since the 4 required an high version of qt. vlc -l | grep face VLC media player 3.0.3…
Scorpion
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1
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0 answers

Is vlc-qt able to get the RAW audio data?

I am building a media player based on vlc-qt, and I want to add the music visualization feature to my application, but how can I get the raw audio data?
Liam_1998
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0 answers

How to change vlc-qt media display widget?

I am using vlc-qt to build a simple media player. And at first I connect the player to a widget, and it works, but when I tried to use the setVideoWidget member function again to change the display widget, it seems doesn't work, so what should i…
Liam_1998
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1
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1 answer

Python QT Application with vlc does not show fullscreen

I am working on an application where several vlc streams (rtsp) are shown and by double-clicking one of them, the stream should be displayed fullscreen. The application is python 3.7 using pyqt5 and vlc-qt. Code as follows: import sys import…
hoffmanuel
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1 answer

Qt app crashes after declaring a new object

I faced very strange problem.I am using VLCQt library and successfully run a very simple videoplayer. but when I want to add a very simple Qlabel to the main class, It crashes at this point ui->setupUi(this). the output window contains these…
Atefe
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