Edward Hervey 32bf29d64d urisourcebin: Allow more cases for posting stream-collection
Previously urisourcebin only allows stream-collections messages from adaptive
demuxers or sources to be posted.

This commit also allows the case where they come from a single parsebin. We
still want to prevent it in the case where they are multiple parsebins, since
that would require some form of aggregation to show a single/unified collection.

In order to avoid a regression with uridecodebin3 behavior, we also implement
support for GST_QUERY_SELECTABLE, so that uridecodebin3 can figure out whether
it should let GST_MESSAGE_STREAM_COLLECTION flow upwards (because app/user could
react on it) or whether it drops it in order for decodebin3 to do the collection
aggregation and posting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7597>
2024-10-02 19:40:48 +00:00
..
2023-06-23 01:27:03 +00:00