The global semaphore was never closed/unlinked, causing permission
denied issue if the device is later used by another user. Properly
removing the semaphore when stopping the pipeline would still leave it
open in case of a crash.
With a GStreamer specific name, it was also not preventing other apps to access
the device concurrently.
Finally, if the system has multiple cards, the lock should be per card
and not global (to be confirmed).
Fixes: #3283.
Sponsored-by: Netflix Inc.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6117>
MaxDpbSize specified in A.4.2 tells upper bound of decoded picture
buffer size but does not tell actual required size.
Use max_dec_pic_buffering value as a dpb size. Some backends
such as DXVA and NVDEC might require pre-allocated DPB buffer
and unnecessary large DPB size will result in waste of GPU memory.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6101>
In rtpbin we already systematically check for all property names
except latency, correct that.
In webrtcbin we need to check before trying to use the do-retransmission
property.
This is useful for the case where an element like identity gets passed
to rtpbin's request-jitterbuffer property, when the application wants
to use webrtcbin in an SFU situation, with no reordering and no added
latency
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6112>
When allocating buffers with alignment parameters specified, it
may be necessary to overallocate memory to adjust to the requested
alignment. Previously the padding length was not included in the mmaped
buffer size, leaving unmapped bytes at the end of the buffer.
This caused intermittent SEGV faults and valgrind failures when running
the wayland_threads example.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6104>
The srt unittest test_src_listener_sink_call will sometimes fail under
valgrind with the following splat:
Memcheck, a memory error detector
Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
Parent PID: 14579
HEAP SUMMARY:
in use at exit: 799,848 bytes in 2,182 blocks
total heap usage: 64,090 allocs, 61,908 frees, 37,891,032 bytes allocated
120 bytes in 1 blocks are definitely lost in loss record 1,563 of 1,681
at 0x4842FF5: operator new(unsigned long) (vg_replace_malloc.c:422)
by 0x6031E29: srt::sync::SetThreadLocalError(CUDTException const&) (sync_posix.cpp:461)
by 0x5FCD77E: CUDT::epoll_wait(int, std::set<int, std::less<int>,
std::allocator<int> >*, std::set<int, std::less<int>,
std::allocator<int> >*, long, std::set<int, std::less<int>,
std::allocator<int> >*, std::set<int, std::less<int>, std::allocator<int> >*) [clone .cold] (api.cpp:3796)
by 0x5FE2F79: UDT::epoll_wait2(int, int*, int*, int*, int*, long, int*, int*, int*, int*) (api.cpp:4277)
by 0x5F0C626: gst_srt_object_read (gstsrtobject.c:1569)
by 0x5F0F978: gst_srt_src_fill (gstsrtsrc.c:180)
by 0x5F5A2A1: gst_base_src_default_create (gstbasesrc.c:1620)
by 0x5F5C9AE: gst_base_src_get_range (gstbasesrc.c:2630)
by 0x5F5EF5A: gst_base_src_loop (gstbasesrc.c:2959)
by 0x4918B13: gst_task_func (gsttask.c:399)
by 0x4A60B33: g_thread_pool_thread_proxy.lto_priv.0 (gthreadpool.c:354)
by 0x4A5DC41: g_thread_proxy (gthread.c:826)
by 0x4F532A4: start_thread (pthread_create.c:481)
by 0x4C71322: clone (clone.S:95)
An issue has been started against libsrt here:
https://github.com/Haivision/srt/issues/2867
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6098>
External plugin loader support for Windows is introduced
in this dev cycle. Since helper binary was not required (useless)
before this version, people may not ship the binary
with new GStreamer version, then they will observe warning message.
Instead of displaying the warning at plugin loading time,
checks helper bin earlier and disable external plugin loader
if helper binary is not installed.
Fixes: https://gitlab.freedesktop.org/gstreamer/cerbero/-/issues/448
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6083>
According to recommendation from MS, IDXGIOutputDuplication::ReleaseFrame()
needs to be called just before IDXGIOutputDuplication::AcquireNextFrame()
for performance reasons, so that driver can accumulate dirty rects
and update texture at once. But it seems to cause choppy output.
Do release acquired frame immediately once processing done,
like d3d11 implementation does.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6092>
