How to play two gifs sequentially in qt C++

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My requirement is to play two gifs sequentially one after another. After second one finished again it should start the first one. Check the below code. Here I have to play abc.gif and def.gif respectively. Can you please provide the solution for this.

QMovie movie = new QMovie("/root/abc.gif");

if (!movie->isValid())
{
qDebug()<<"Movie is Inavlid";
}
ui->label_banner->setMovie(movie);

movie->start();
ui->stackedWidget->setCurrentIndex(4);

if (movie->currentFrameNumber() == movie->frameCount()-1)
{
movie = new QMovie("/root/def.gif");

if (!movie->isValid())
{
qDebug()<<"Movie is Inavlid";
}
ui->label_banner->setMovie(movie);

movie->start();
ui->stackedWidget->setCurrentIndex(4);
}

What I have tried:

QMovie movie = new QMovie("/root/abc.gif");

if (!movie->isValid())
{
qDebug()<<"Movie is Inavlid";
}
ui->label_banner->setMovie(movie);

movie->start();
ui->stackedWidget->setCurrentIndex(4);

if (movie->currentFrameNumber() == movie->frameCount()-1)
{
movie = new QMovie("/root/def.gif");

if (!movie->isValid())
{
qDebug()<<"Movie is Inavlid";
}
ui->label_banner->setMovie(movie);

movie->start();
ui->stackedWidget->setCurrentIndex(4);
}

Posted 11-Jul-19 2:02am

Member 13740197

Updated 11-Jul-19 2:30am

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Richard MacCutchan · Accepted Answer · 2019-07-11T02:30:00

Solution 1

Create a 'play function that checks the movie is valid and plays it. Then you just need something like

C++

char* movies[] = { "/root/abc.gif", "/root/def.gif" }
for (int i = 0; ; i = i==1 ? 0 : 1)
{
    play(movies[i]);
}

Posted 11-Jul-19 2:30am

Richard MacCutchan

Comments

Member 13740197 12-Jul-19 1:30am

Hi,

Thanks for the answer. I have tried with your code but I am unable to play GIFs.Below is the play function. I am printing i value, it is printing continuously 0 and 1 but the gif is not playing. Can you please tell me how to solve this.

void play(char *gif)
{

movie = new QMovie(gif);
if (!movie->isValid())
{
qDebug()<<"Movie is Inavlid";
}
ui->label_banner->setMovie(movie);

movie->start();
ui->stackedWidget->setCurrentIndex(4);
}

Richard MacCutchan 12-Jul-19 2:52am

Sorry, but I do not know QT, so I have no idea why that code is not working.