@SGaist Ah, in that case, I'll give it a try. Would that also be the case with QAbstractVideoSurface, or would that one receive further-in frames if more time passes? Processing takes about 250ms per frame on Android right now. I'm working on ways to speed that up, but the processing fps is going to be worse than the video file's fps for some time yet.

I am currently unsure that you can achieve that this way. If memory serves well, you can create a custom QMediaObject that you can attach to VideoOutput. It could be an alternative.

I have the same issue. It's soo slow with rtsp and buggy.

@vicky_mac said in Custom streamer pipeline in QML: module org.freedesktop.gstreamer.GLVideoItem if vaapi is used in the pipeline on linux, install libva-dev

Connect the videoFrameChanged signal of the sink to a custom slot so you will have the frame available to be saved.

ok looks like I've stumbled upon https://bugreports.qt.io/browse/QTBUG-86896

I added the following two lines of code and it worked: QHBoxLayout *camera_layout = new QHBoxLayout(this); mCamera = new QCamera(); mCameraViewfinder = new QCameraViewfinder(); camera_layout->addWidget(mCameraViewfinder); mCamera->setViewfinder(mCameraViewfinder); mCamera->start(); And it worked

Sorry, I meant for video encoding. In any case, I would separate the streaming and the preview if possible. Generating the network stream for one or more device can be very heavy CPU wise.

Update - After a very long day, turns out that opencv lib was linked to gstreamer0.10, qt to 1.0. This did not work well obviously. When compiling opencv with linking to gstreamer1.0, works ok.

Hi @SGaist , Thanks for your response. Just wanted to know for sure if there was a way to do it with Qt itself. Will start looking at other options. Thanks.

Ok. I have found a solution QImage imageToReturn = QImage((uchar*)converted_image.data, converted_image.cols, converted_image.rows, QImage::Format_RGB888); imageToReturn.convertToFormat(QImage::Format_RGB32); I have found that when i started to compare metadata between QImage constructed from cv::Mat data and QImage constructed as in second example

Here is pretty much the commands I use to deploy the app: qmake videoplayer/videoplayer.pro -o build/MakeFile -r -spec win32-msvc2010 -nocache jom -f Makefile -s windeployqt --release release

Thanks. Ended up really using mediainfo, got it with the following method int getVideoDuration(std::string fileName){ MediaInfo MI; MI.Open(fileName); int duration = std::stoi(MI.Get(Stream_General, 0, "Duration")); MI.Close(); return duration; }

@SilverSurfer I don't have the time handy to do a full working example, but this is the technique in glsl: https://www.khronos.org/opengl/wiki/Data_Type_(GLSL)#Swizzling (The vec4 can hold "rgba" values if that's what you put in it - the example there just calls it "xyzw" because the data type generically handles any 4 floats.) Basically, start from an example that draws an image with a simple glsl shader as a texture. Then hack on the shader until it flips around the colors like you want when it draws the texture. Then use your code that gets the image over the network to upload the image as the OpenGL texture every frame.

@GrecKo thanks for your comment. I've managed to create the window in which people would touch the video, but I'm not sure how to make the player. I've seen there is a library, Qt media, but I don't really know how to bind it with the other screen.

Solved, gstreamer-0.10-ffmpeg was missing. sudo add-apt-repository ppa:mc3man/gstffmpeg-keep sudo apt-get update sudo apt-get install gstreamer0.10-ffmpeg UPDATE: Not really solved, using this plugin breaks GStreamer: $ export GST_DEBUG=2 $ ./RPIStreamer 0:00:01.232878440 29169 0x7f0414007320 WARN qtdemux qtdemux_types.c:191:qtdemux_type_get: unknown QuickTime node type iods 0:00:01.233010807 29169 0x7f0414007320 WARN qtdemux qtdemux_types.c:191:qtdemux_type_get: unknown QuickTime node type avc1 0:00:01.233055875 29169 0x7f0414007320 WARN qtdemux qtdemux_types.c:191:qtdemux_type_get: unknown QuickTime node type avcC 0:00:01.233095592 29169 0x7f0414007320 WARN qtdemux qtdemux_types.c:191:qtdemux_type_get: unknown QuickTime node type btrt 0:00:01.235499777 29169 0x7f0414007320 WARN qtdemux qtdemux.c:6006:qtdemux_parse_segments:<qtdemux0> streaming; discarding edit list segments 0:00:01.235563181 29169 0x7f0414007320 WARN qtdemux qtdemux.c:7044:qtdemux_parse_trak:<qtdemux0> unknown version 00000000 0:00:01.236318578 29169 0x7f0414007320 WARN qtdemux qtdemux.c:6006:qtdemux_parse_segments:<qtdemux0> streaming; discarding edit list segments 0:00:01.264479125 29169 0x7f0414007680 WARN playsinkconvertbin gstplaysinkconvertbin.c:481:gst_play_sink_convert_bin_cache_converter_caps:<GstPlaySinkAudioConvert@0x7f03f801a050> No conversion elements 0:00:01.290541635 29169 0x7f04140071e0 WARN ffmpeg gstffmpegdec.c:2299:gst_ffmpegdec_frame:<ffdec_h2640> ffdec_h264: decoding error (len: -1, have_data: 0) 0:00:01.297533958 29169 0xba4d40 WARN basesrc gstbasesrc.c:2625:gst_base_src_loop:<source> error: Internal data flow error. 0:00:01.297562286 29169 0xba4d40 WARN basesrc gstbasesrc.c:2625:gst_base_src_loop:<source> error: streaming task paused, reason not-negotiated (-4) Error: "Internal data flow error."

I think I found a solution. I roughly quadrupled the QCameraViewfinder size and repositioned it to the middle. Its all done with "cameraVf->setGeometry(x,y,x,y);". And I parented the viewfinder to a new QFrame to have a frame and to have the viewfinder not overlaying the start button. mainwindow.cpp ... QFrame *frameVideo = new QFrame(frame4); // extra frame where the video is in frameVideo->setGeometry(5,35,375,380); camera = new QCamera("/dev/video0"); cameraVf = new QCameraViewfinder(frameVideo); camera->setViewfinder(cameraVf); cameraVf->setGeometry(0,0,375,380); QCameraViewfinderSettings vfsettings; vfsettings.setPixelFormat(QVideoFrame::Format_YUV420P); vfsettings.setResolution(640,480); camera->setViewfinderSettings(vfsettings); cameraVf->show(); ... void MainWindow::onZoomClicked(){ if(cameraVf->width() != 1600) { cameraVf->setGeometry(-590,-490,1600,1440); // zoom in } else { cameraVf->setGeometry(0,0,375,380); // zoom out } }

Then it sounds like a regression… Can you check against the latest 5.7 to see if it still happens ?

@raven-worx Got keys from plugin meta data ("audiocapture") QFactoryLoader::QFactoryLoader() checking directory path "/home/MYPATH/build-desktop-system-dev-Desktop_Qt_5_5_1_GCC_32bit-Release/MY_PROJECT/mediaservice" ... defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

Actually, I have now seen the .mov files played by QML's MediaPlayer on Windows. I'm making things slightly difficult for myself by not having a Windows machine in the house, so this has all been on an AWS EC2 instance; that gives you a Server2012R2 session... but that seems to have no media player support at all until you enable "Windows Desktop Experience". I also installed a "K-Lite Codec Pack", but since I'd installed that before I enabled the "desktop experience" stuff, I'm not sure if it was needed or not (will try and remove the codec pack at some point, if it's uninstallable; strongly suspect it is needed though). Anyway, that's the existence proof the .mov files can work I was looking for. Thanks for the other suggestions... I'm not too keen on turning to other tools like VLC or ffmpeg if I can possibly avoid it. Stock Qt has so far served me remarkably well as a one-stop shop for multiplatform applications and I'm very reluctant to have to bring in something else too. Transcoding my video content to something that worked everywhere would have been a more attractive solution if needed.

Hi Which platform are you running your application on ?

Hi, Not a direct answer but maybe the QtGStreamer might be an option. Hope it helps

@JSmith said in Video frame rate on iMX6: smoothly @JSmith did you get it to work with better fps >30 fps on iMx6Q with Qt5?

Hi, Then that's something you should ask to the QtAV authors. It's not an official Qt module.

Thank you! QString file = filemodel->data(index, Qt::DisplayRole).toString(); QDesktopServices::openUrl(QUrl::fromLocalFile(file)); Works perfekt! :D

Just an update: I ended up just using a "container widget" that holds the video widget. This way I can just add the container widget to the layout and detach the video widget from the container when going full screen. Then I just add it back to the container instead of trying to add it to the layout exactly as it was. In my case, I'm actually using a QStackedWidget as the "container" since I need to switch the video out with other views anyways. It works out perfectly. This project is really coming along nicely. I'm loving Qt right now. :)

@mehmety888, this thread is over 2 years old. If they did they would of said they did find a solution. By the way you mean found not find.

My log also include the message: This plugin does not support setParent! Please advise! IL

guys, i have the same issue but with debian 11. When i run the player example, i get the following defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer" sherif@debian:~/sndmod$ sudo apt list --installed | grep gstreamer [sudo] password for sherif: WARNING: apt does not have a stable CLI interface. Use with caution in scripts. gir1.2-gstreamer-1.0/stable,now 1.18.4-2.1 amd64 [installed,automatic] gira-gstreamer-vanilla/testing,now 1.0.0-4 all [installed,automatic] gstreamer1.0-alsa/stable,now 1.18.4-2 amd64 [installed,automatic] gstreamer1.0-clutter-3.0/stable,now 3.0.27-2 amd64 [installed,automatic] gstreamer1.0-gl/stable,now 1.18.4-2 amd64 [installed,automatic] gstreamer1.0-gtk3/stable,now 1.18.4-2 amd64 [installed,automatic] gstreamer1.0-libav/stable,now 1.18.4-3 amd64 [installed] gstreamer1.0-packagekit/stable,now 1.2.2-2 amd64 [installed] gstreamer1.0-pipewire/stable,now 0.3.19-4 amd64 [installed,automatic] gstreamer1.0-plugins-bad/stable,now 1.18.4-3 amd64 [installed,automatic] gstreamer1.0-plugins-base/stable,now 1.18.4-2 amd64 [installed] gstreamer1.0-plugins-good/stable,now 1.18.4-2 amd64 [installed] gstreamer1.0-plugins-ugly/stable,now 1.18.4-2 amd64 [installed] gstreamer1.0-pulseaudio/stable,now 1.18.4-2 amd64 [installed] gstreamer1.0-tools/stable,now 1.18.4-2.1 amd64 [installed,automatic] gstreamer1.0-x/stable,now 1.18.4-2 amd64 [installed,automatic] libgstreamer-gl1.0-0/stable,now 1.18.4-2 amd64 [installed,automatic] libgstreamer-plugins-bad1.0-0/stable,now 1.18.4-3 amd64 [installed,automatic] libgstreamer-plugins-base1.0-0/stable,now 1.18.4-2 amd64 [installed,automatic] libgstreamer1.0-0/stable,now 1.18.4-2.1 amd64 [installed,automatic] libgstreamer1.0-dev/stable,now 1.18.4-2.1 amd64 [installed,automatic] qtgstreamer-plugins-qt5/stable,now 1.2.0-5.1 amd64 [installed,auto-removable] sherif@debian:~/sndmod$