Backport of "video-converter: Various fixes for interlaced scaling" into 1.16
requested to merge tpm/gst-plugins-base:backport-mr-466-into-1.16-interlaced-scaling-fast-paths into 1.16
Backport of !466 (merged) "video-converter: Various fixes for interlaced scaling".
Commits:
- 565b797f video-converter: Use interlaced scalers for vertical scaling if needed
- 255beae3 video-converter: Don't use fast-path halfing/doubling rescalers for interlaced planar formats
- c9f13298 video-scaler: Correctly handle interlaced vertical scalers in gst_video_scaler_2d()
- bcc1d666 video-converter: Scaling-only fast-paths for planar formats are keeping interlacing
- 2bc1b388 video-converter: Use G_N_ELEMENTS instead of writing it out manually