Commit graph

6 commits

Author SHA1 Message Date
Olivier Crête
91815710dd analyticsmeta: Make the GstAnalyticsRelatableMtdData struct private
Only ask the subclass about how much space they need, this way we can keep
the allocation details more private.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5863>
2024-01-10 18:19:38 -05:00
Olivier Crête
f5d5f2cf1a meta: Add API to register metas in two steps
And also remove the specific registration APIs for
serializable meta.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5830>
2023-12-19 22:41:31 +00:00
Olivier Crête
2a9c4e3270 meta: Move the clear operation to its own vfunc
Some transforms always assumed that the transformation was some kind
of copy. So adding a "clear" operation didn't work out in practice.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5830>
2023-12-19 22:41:31 +00:00
Daniel Morin
4425562661 analytics: fix analytics-meta re-use
- Fix alignment error when source and destination analytics-meta have the same
  relation order.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5767>
2023-12-06 18:25:16 +00:00
Daniel Morin
aaee569087 analytics: replace id type from gint to guint
- Replace all id type from gint to guint
- Fix annotation for GstAnalyticsODMtdData

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5758>
2023-12-04 10:14:59 -05:00
Daniel Morin
d23a90cb16 analytics: base class for analytics meta
- GstAnalyticRelationMeta is a base class for analytics
  meta. It's able to store analytics results (GstAnalyticRelatableMtd)
  and describe the relation between each analysis results.
- GstAnalysisRelationMeta also contain an algorithm able to explore
  analysis results relation using a bfs.
- Relation(edge) between analysis results (vertice) are stored in an adjacency-matrix
  that allow to quickly identify if two analysis results are related and by
  which relation they related. It also work for indirect relation
  and can provide the path of analysis results by which two
  analysis results are related.
- One allocation per buffer to store analysis results. Here we rely on
  the application to guess how much space will be required to store all
  analysis results. This is something that could be improved
  significantly but it's a starting point.
- Define common analysis results, classification, object-detection,
  tracking that are subclass of GstAnalyticRelatableMtd. The also
  provide exemple of how to extend GstAnalyticRelatableMtd to have them
  benefit for the mechanim to express relation with other analysis
  results.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4962>
2023-11-21 18:04:53 +00:00