How to play a video continuously using mplayer in qt

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Hi,

I have a requirement to play a video continuously using mplayer. I am using Qt 4.7 in a Linux environment. For this, I have taken playvideo function as below.

C++

void Widget::playvideo()
{
   ret = system("mplayer /path/to/video.avi");
   qDebug()<<"ret="<<ret;
   playvideo();
}

From one button click, I am calling this playvideo function. After system call, I am calling again playvideo function. Here playvideo function is calling without finishing video but my requirement is to call playvideo function after finishing video playing. I am unable to achieving this. Can you please help me how to solve this.

What I have tried:

C++

void Widget::playvideo()
{
   ret = system("mplayer /path/to/video.avi");
   qDebug()<<"ret="<<ret;
   playvideo();
}

Posted 23-Jul-19 20:04pm

Member 13740197

Updated 23-Jul-19 22:18pm

phil.o

v2

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Comments

Peter_in_2780 24-Jul-19 2:33am

Have you tried "mplayer -loop 0 /path/to/video" ?
According to the docs, -loop 0 will loop that video forever.
Stopping it is a different issue.

Member 13740197 24-Jul-19 6:21am

Thanks for the answer. When I used this -loop 0 working fine but after sometime I am getting below error. I am using linux POS device, below is uname -a output
Linux companyname 3.0.35-2666-gbdde708 #43 PREEMPT Sat May 19 10:11:22 IST 2018 armv7l GNU/Linux

Can you please help how to resolve this error.

Error:
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...

MPlayer interrupted by signal 2 in module: ao2_init
Can't restore text mode: Invalid argument

Peter_in_2780 24-Jul-19 8:03am

Sorry, I can't help with that. You might do better in a forum related to your hardware and linux.

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