[Fedora 40] videoPlayer example does not play backwards when using negative speed using the mouse.

[PaoloMolinari]

The video player example does not play backwards with negative speed. As soon as the speed is set to negative the following error appears:

(videoPlayerExample:1245556): GStreamer-CRITICAL **: 20:01:26.076: gst_segment_position_from_running_time_full: assertion 'segment->format == format' failed

(videoPlayerExample:1245556): GStreamer-CRITICAL **: 20:01:26.076: gst_segment_do_seek: assertion 'segment->format == format' failed

The error does not occur every frame, only when the speed changes of sign. Once the speed returns to be positive the player works normally (the example does not crash).

Fedora 40
gst-launch-1.0 version 1.24.11
GStreamer 1.24.11

[artificiel]

confirmed on Arch Linux / GST 1.24.12. no quick fix here...

the reported frame goes above 218 like 342/218 so it seems lower level, also there is interaction with the EOS callback (in gstHandleMessage()) to re-seek the clip upon ending -- yet the GST docs do not seem to imply that EOS is emitted when reaching the beginning in a reverse-play situation.