@mrjj Many thanks mrjj for your answer. I'll make more researches about SQLite and Taglib.

Hi @robcreamer, this is outside my expertise, but I suggest you subscribe to the Interest mailing list (http://lists.qt-project.org/mailman/listinfo/interest ) and post your sample code + 122.7-hour log there. I'm sure one of the Qt engineers on the list can tell you what's happening.

Hi and welcome to devnet,

You should check what your device support, QAudioDeviceInfo gives you all the various channel counts, sample sizes etc. that are supported by the device you want to use.

@Grynium @rickywong2017
This is the way i fixed it.
Step 1: use 'apt-cache search -n gstreamer' to get the list all of the gstreamer and libgstream lib
Step 2: for each of lib in the list. Use 'apt-get install name-of-the-gstreamer-lib' to install it. After install almost the lib in the list my example run. ( i don't know which is the exactly lib i need to install. I just install all of them until my example run)
Step 3: rebuild your example and run.

I hope this help.

I got these warnings here:
Starting /home/linaro/build-qtweb-ubuntu-Debug/qtweb...
libEGL warning: DRI3: Screen seems not DRI3 capable
libEGL warning: DRI2: failed to open mali_drm (search paths /usr/lib/arm-linux-gnueabihf/dri:${ORIGIN}/dri:/usr/lib/dri)

And I also use tcpdump to capture packets,I can see the throughput from the server,but video can not play. I think this may be the decode problem but not very clear.Do I need to put some so files into the debug/plugins folder?

Any answers will be appreciated!

@tamolo You used qmake from home/Qt5.7 to build QtMultimedia, right? In this case make install should copy it to home/Qt5.7. If it did not then you still can copy the stuff manually. Actually, if you call "make install" you see what it is installing where.

Depending on your needs, QAudioOutput is rather a lightweight alternative but QMediaPlayer is indeed easier to setup and run.

Glad you found out and thanks for sharing !

Hi,

You should take a look at the bug report system to see if it something known.

Yeah. It happens when you copy&paste without double check comments and you're afraid about "it could not work" :)
Thanks!

Hi,

What system is it ? What version of GStreamer do you have installed ?

I updated a .pro file to the following state:

QT += core multimedia widgets
QT -= gui
TARGET = MetadataExtractor
CONFIG += console
CONFIG += static
TEMPLATE = app
SOURCES += main.cpp
extractor.cpp
HEADERS +=
extractor.h

Then used the macdeployqt. This issue is resolved for me.
@SGaist @Tyras @kshegunov Thanks to Everyone!

@RockAndCode said in Video plays fine on the linux device using gst-launch, but fails to play with a Qt application?:

Is there certain eglfs settings that needs to be set when running the Qt based apps on the device?

Can you tell me how and which eglfs settings need to be changed?
I am using nVidia TX1 board.

Yep, thank you but that is what I've talking about, in release about 40 ms on full HD frame. Better to find a way to get RGB frames, not YUV, but I don't know how that all works exactly.

hi and welcome
Maybe you can try with "Media Player Example" to see if it will load and play file. ?
Its available directly in creator under the examples tab. just type video in search.
It might be it dont like the format.

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

Please advise!
IL

@SGaist Well...
I wrote about my solutions to combine Qt and RtAudio and it just works but it is a bit of head breaking for me how to manage this with QIODevice.
Maybe after some time

Hi and welcome to devnet,

The nicest thing to do would be as stated in the TODO: get the information from the video encore settings control and rebuilt the plugin.

What version of Qt is it ? GStreamer 1.0 support is pretty recent so you might have to enable it when configuring depending on your Qt version

I've checked, there's currently no option to do it directly with Qt Multimedia. You might want to check the QtAV project.

Hello,
Got another problem though I have managed to cross compile Qt5 with gstreamer1.0 support it is unable to play HD videos on pi.
I checked using GST_DEBUG=3 and it seems like it still uses gstreamer0.10.
So Do anyone have got HD video playing on pi and can suggest me to get it playing??

You're welcome !

Happy coding !

@xargs1 said:

In order to get availableCameras to work, you have to first import QtMultimedia 5.4
Can we just give ListModel an empty set of bracket?
This didn't work, it says
modelData is not defined

Should I write part of the code in another QML file?

Sorry, I misunderstood your post but currently, except for QMediaRecorder, I don't know if there's a way to have the list of decoders.

Hi,

No, it indicates whether the stream is seekable

Hi @kolegs,
How did you capture the frame ?

Hi @pthinks,

I highly recommend you proofread your post.

It contains false advertising (you are not the top 2nd contributor in the forum) It contains outdated information (qt-project.org is now offline) It's full of formatting errors ("list listItem")