Fix incorrect timestamp calculation in Qwen3VL Processor (#43659)
Fixes #43519
The Qwen3VL processor was incorrectly using 'merge_size' (spatial merging)
instead of 'temporal_patch_size' (temporal grouping) when calculating
video frame timestamps.
When calculating timestamps:
- 'temporal_patch_size' groups consecutive frames together temporally
- 'merge_size' groups pixels spatially
Using the wrong parameter would produce incorrect timestamp values
because the temporal grouping factor differs from the spatial one.
The fix changes the _calculate_timestamps call to use
'self.video_processor.temporal_patch_size' as suggested in the issue.