Commit graph

8 commits

Author SHA1 Message Date
Carlos Rafael Giani
cea5d19665 switchbin: Rework gst_switch_bin_get_allowed_caps() to limit path lock
Previously, the path lock was held even while issuing caps queries to
other elements. This can lead to deadlocks in more complex pipelines.
Avoid this by reworking gst_switch_bin_get_allowed_caps() to acquire
references to switchbin paths and then releasing the path lock.
Subsequent operations in that function then act on the acquired
references, thus eliminating the need for holding the path lock for
the entirety of that function.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Carlos Rafael Giani
cfe484d983 switchbin: Always respond to caps query with all allowed caps
The caps query specifies _all_ caps that the element can handle, not just
caps from the current path element. If for example a switchbin has two
paths, with one having an element that handles video/x-h264, and another
path whose element handles video/x-raw, and the second path is the
current path, then the existing code would report only video/x-raw as
supported. Fix this by report all allowed caps, even if there is a
current path defined.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Carlos Rafael Giani
c994f27f34 switchbin: Update and improve documentation
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Carlos Rafael Giani
fcc3420929 switchbin: Forward filter caps to internal caps queries
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Carlos Rafael Giani
d0b9f9fc27 switchbin: Rework allowed-caps computation to allow for passthrough paths
The rationale is that a passthrough path (= one with no element) behaves
as if the switchbin's sink- and srcpad were one. In particular, internal
caps queries (needed for computing the allowed caps) then go to the peers
instead to path elements. Rework gst_switch_bin_get_allowed_caps () for
a clear handling of NULL path elements and for proper dataflow passthrough
and caps & accept-caps query handling.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Carlos Rafael Giani
0f279cdb86 switchbin: Improve filter caps application
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Carlos Rafael Giani
9429a69f1c switchbin: Remove leftover drop probe code bits
The drop probe was present in early switchbin versions to implement paths
that drop dataflow. However, this feature turned out to be too problematic
and thus was removed. Some bits remained though. This commit removes those
bits and clarifies that in the current switchbin version, a NULL path
element instead means passthrough.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4632>
2024-02-08 18:33:29 +00:00
Thibault Saunier
019971a3c7 Move files from gst-plugins-bad into the "subprojects/gst-plugins-bad/" subdir 2021-09-24 16:14:36 -03:00
Renamed from gst/switchbin/gstswitchbin.c (Browse further)