With ffmpeg as backend, when looping is enabled in Qt, the seekbar fails to function properly.

Upon enabling looping functionality in Qt, the seekbar becomes dysfunctional beyond the initial iteration. Initially, when media playback begins, the seekbar accurately reflects the progress of the media content, allowing users to seek through the content as expected. However, once the media reaches the end and loops back to the beginning for subsequent iterations, the seekbar freezes or remains stuck at its initial position. Consequently, users are unable to utilize the seekbar to navigate through the media during subsequent loops.

Steps to Reproduce:

1. Open the "mediaplayer" example project in Qt.
2. Specify looping functionality in the videoOutput component.
3. Compile and run the code for the desktop environment.
4. Open a media file using the player.
5. Play the media file.

Expected Result:

• The media file plays continuously in a loop.
• The seekbar should accurately reflect the progress of the media content and allow users to navigate through it even during subsequent iterations.

Actual Result:

• After the first iteration, the seekbar becomes unresponsive.
• Although the video continues to play in a loop, the seekbar remains stuck at the end of the media content.
• Users are unable to utilize the seekbar to navigate through the media content during subsequent iterations, significantly impairing the user experience.