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3 commits

Author SHA1 Message Date
Matthew Waters
9d867356df gl/bufferpool: add configuration to extend buffer lifetime before reuse
Fixes a potential GPU stall if an immediately freed texture/buffer is
attempted to be reused immediately by the CPU, e.g. when uploading.

Problematic scenario is this:
1. element does GPU processing reading from texture
2. frees the buffer back to the pool
3. pool acquire returns the just released buffer
4. GPU processing then has to wait for the previous GPU operation to
   complete causing a stall

If there was a reliable way to know whether a buffer had been finished
with across all GPU drivers, we would use it.  However as that does not
exist, this workaround is to keep the released buffer unusable until the
next released buffer.

This is the same approach as is used in the qml (Qt5) elements.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5144>
2023-08-31 01:24:38 +00:00
Matthew Waters
b291efe44b gldownload: handle passthrough without a critical
With passthrough mode, gldownload/glbasefilter may not ever retrieve a
relevant GstGLContext as it doesn't actually query the surrounding
elements.  Guard against that.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4791>
2023-06-07 22:15:39 +00:00
Thibault Saunier
2fd28195ca Move files from gst-plugins-base into the "subprojects/gst-plugins-base/" subdir 2021-09-24 16:13:26 -03:00
Renamed from ext/gl/gstgldownloadelement.c (Browse further)