Why is there no sound in the qwebview?

Mucahit

Hello all,

I've a qt project. I use qwebview in that project. Although i could play video on qwebview, i couldn't get sound. Is there anyone to help me ? Thank you .

SGaist

Hi,

What version of Qt ?
What OS ?
How did you install it ?
On what device ?

Mucahit

Hi,

My version is Qt Creator 4.8.2 based on Qt 5.11.3(GCC 8.3.0,32 Bit)
My operating system is Raspbian
My device is Raspberry Pi Compute Module CM3
I got my voice with low pass and high pass circuits that I installed in the pwm outputs of the card. I get sound when I play it with Omxplayer.

jsulm

@Mucahit You forgot to mention Qt version you're using (you will not find it in "About Qt Creator..." dialog).

Mucahit

Hi,

How can I learn Qt version ? I thought I would find About Qt Creator.

jsulm

@Mucahit said in Why is there no sound in the qwebview?:

About Qt Creator

This only shows Qt version which was used to build QtCreator.
What Qt version did you install?
If you do not know then go to "Tools/Options.../Kits" and check the Kit you're using.

Mucahit

Thank you,

I checked, writes like : Qt 5.11.3 in PATH (qt5) /usr/lib/qt5/bin/qmake

jsulm

@Mucahit Playing video with some other application (like VCL) does work properly on your RPi?

Mucahit

Yes,

For example when i execute this code in terminal 'omxplayer sound.mp4' , i am getting sound.But when i play the url of the same song on qwebview i can't get sound.
url :https://www.youtube.com/watch?v=yipFQVjan4A

jsulm

@Mucahit Could be that you're missing some GStreamer plug-ins. Do you see any warnings/errors in terminal when running your app?

Mucahit

I am getting only libEGl warning. But for the first time I heard about the gstreamer plugin you mentioned. How can i install it on my Compute Module ?

Konstantin Tokarev

@Mucahit Does sound work if you play file with gst-play-1.0? If not, try installing gst-omx plugins.

jsulm

@Mucahit said in Why is there no sound in the qwebview?:

How can i install it on my Compute Module ?

Since it's Debian use "apt-get install". You can use "apt-get search gstreamer" to search for GStreamer packages.

Konstantin Tokarev

AFAIK right command is apt-cache search, not apt-get search

jsulm

@Konstantin-Tokarev According to the apt manpage on my Ubuntu 18.04 "apt search" can be used to search for available packages. "apt-cache search" is also valid.

Mucahit

Sorry for the late return. I will write here if it works or not, when I try.

Mucahit

Thanks for your help it really worked !!!! Solved.

Konstantin Tokarev

So what did actually help? Have you installed gst-omx or?

Mucahit

Frankly I don't know this because I made a lot of changes to my card and it started working when I last restarted.

lopoloki

@jsulm said in Why is there no sound in the qwebview?:

@Mucahit You forgot to mentio https://kodi.software/ https://nox.tips/n Qt version you're using (you will not find it in "About Qt Creator..." dialog).

@Mucahit You forgot to mention Qt version you're using (you will not find it in "About Qt Creator..." dialog).