Otherwise we'll get an assertion if the object behind the weak pointer
was already destroyed in the meantime as we would pass NULL as first
argument to g_object_remove_weak_pointer().
There is a deadlock if any thread from the pool tries to push
a new task while other thread is waiting for the pool of threads
to finish. With this patch the thread will get an error when it
tries to add a new task while the taskpool is being cleaned up.
Between getting the GSource with the mutex and destroying it, something
else might've destroyed it already and we would have a dangling pointer.
Keep an additional reference just in case.
Signal watches are reference counted and gst_bus_remove_watch() would
immediately remove it, breaking the reference counting. Only
gst_bus_remove_signal_watch() should be used for removing signal
watches.
GstDeviceProvider has a started_count private variable counter,
and the gst_device_provider_start() documentation emphasizes the
importance of balancing the start and stop calls.
However, when starting a provider that is already started, the
current code will never increment the counter more than once.
So you start it twice, but it will have start_count 1, which is the
maximum value it will ever see.
Then when you stop it twice, on the 2nd stop, after decrementing the
counter in gst_device_provider_stop():
else if (provider->priv->started_count < 1) {
g_critical
("Trying to stop a GstDeviceProvider %s which is already stopped",
GST_OBJECT_NAME (provider));
and the program is killed.
Fix this by incrementing the counter when starting a device provider that
was already started.
Fix corruption of meta list head when removing metas at the beginning
during iteration. Linked list handling in gst_buffer_foreach_meta
failed to track the previous entry and update the correct next pointer
when removing items from beyond the head of the list, resulting in
arbitrary list pointer corruption.
Closes#332
A pointer to a hook in this list can easily not be unique, given both
the slice-allocator reusing memory, and the OS re-using freed blocks
in malloc.
By doing many repeated add and remove of probes, this becomes very easily
reproduced.
Instead use hook_id, which *is* unique for a added GHook.
If a segment has stop == -1, then gst_segment_to_running_time()
would refuse to calculate a running time for negative rates,
but gst_segment_do_seek() allows this scenario and uses a
valid duration for calculations.
Make the 2 functions consistent by using any configured duration
to calculate a running time too in that case.
https://bugzilla.gnome.org/show_bug.cgi?id=796559
Fixes for gst_segment_position_from_running_time_full() when
converting running_times that precede the segment start (or
stop in a negative rate segment)
The return value was incorrectly negated in those cases.
Add some more unit test checks for those cases, and especially
for segments with offsets.
gst_element_post_message() takes ownership of the message so we need to increase
its refcount until we no longer require access to its data (context_type).
https://bugzilla.gnome.org/show_bug.cgi?id=797099
And only ever use the non-live values if all pads are non-live,
otherwise only use the results of all live pads.
It's unclear what one would use the values for in the non-live case, but
by this we at least pass them through correctly then.
This is a follow-up for 794944f779, which
causes wrong latency calculations if the first pad is non-live but a
later pad is actually live. In that case the live values would be
accumulated together with the values of the non-live first pad,
generally causing wrong min/max latencies to be calculated.
IDLE probes that are directly called when being added will increase /
decrease the "number of IDLE probes running" counter around the call,
but when running from the streaming thread this won't happen.
This has the effect that when running from a streaming thread it is
possible to push serialized events or data out of the pad without
problems, but otherwise it would deadlock because serialized data would
wait for the IDLE probe to finish first (it is blocking after all!).
With this change it will now always consistently deadlock instead of
just every once in a while, which should make it obvious why this
happens and prevent racy deadlocks in application code.
https://bugzilla.gnome.org/show_bug.cgi?id=796895
Probes were remembering a cookie that was used to check if the probe was
already called this time before the probes list changed. However the
same probes could've been called by another thread in between and thus
gotten a new cookie, and would then be called a second time.
https://bugzilla.gnome.org/show_bug.cgi?id=795987
strncpy() is assumed to be for strings so the compiler assumes that
it will need an extra byte for the string-terminaning NULL.
For cases where we know it's actually "binary" data, just copy it
with memcpy.
Fixes compiler warnings with gcc 8.
https://bugzilla.gnome.org/show_bug.cgi?id=795756
gst_buffer_list_new_sized(0) will cause an underflow in a calculation
which then makes it try to allocate huge amounts of memory, which
may lead to aborts.
https://bugzilla.gnome.org/show_bug.cgi?id=795758
When outputting debug logs on Windows, some sections are protected
with a non-recursive lock. Turns out though that gst_debug_message_get()
might indirectly, via our printf format extensions, call code which
in turn would try to log something when it can't handle something. If
that happens we end up in gst_debug_log_default() again recursively and
try to again take the lock that's already taken, thus deadlocking.
Format the debug message string outside of the critical section
instead to avoid this.
https://bugzilla.gnome.org/show_bug.cgi?id=784382
Remove unneeded reapplication of patterns. Besides being
superfluous (gst_debug_reset_threshold already applies
patterns) it was also wrong and didn't stop checking patterns
after the first match (broken in 67e9d139).
Also fix up unit test which checked for the wrong order.
https://bugzilla.gnome.org/show_bug.cgi?id=794717
g_object_ref() forwards the type of its argument nowadays.
./grammar.y:409:14: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
gstchildproxy.c:212:7: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
This can be used to identify buffers for which a higher percentage
of redundancy should be allocated when performing forward error
correction, or to prevent still video frames from being dropped by
elements due to QoS.
https://bugzilla.gnome.org/show_bug.cgi?id=793008
