gst_base_transform_transform_caps can return NULL in various conditions
thus we should not treat its result as valid caps.
In all other places NULL is properly handled.
Previously gst_buffer_list_foreach() could modify (drop or replace)
buffers in non-writable lists, which could cause all kinds of problems
if other code also has a reference to the list and assumes that it stays
the same.
https://bugzilla.gnome.org/show_bug.cgi?id=796692
Every container of miniobjects now needs to store itself as parent in
the child object, and remove itself again at a later time.
A miniobject is only writable if there is at most one parent, and that
parent is writable itself, and if the reference count of the miniobject
is 1.
GstBuffer (for memories), GstBufferList (for buffers) and GstSample (for
caps, buffer, bufferlist) was updated accordingly.
Without this it was possible to have e.g. a bufferlist with refcount 2
in two places, modifying the same buffer with refcount 1 at the same
time.
https://bugzilla.gnome.org/show_bug.cgi?id=796692
The processing deadline is the acceptable amount of time to process the media
in a live pipeline before it reaches the sink. This is on top of the algorithmic
latency that is normally reported by the latency query. This should make
pipelines such as "v4lsrc ! xvimagesink" not claim that all frames are late
in the QoS events. Ideally, this should replace max_lateness for most applications.
https://bugzilla.gnome.org/show_bug.cgi?id=640610
The SNAP flags only make sense in combination with the KEY_UNIT flag,
and without they expose all kinds of unexpected behaviour in various
elements that don't expect this from happening.
Also warn if this ever happens.
https://bugzilla.gnome.org/show_bug.cgi?id=796558
Windows doesn't seem to have an equivalent of POLLPRI so disabled those
functions on this platform.
This API can be used, for example, to wait for video4linux events which
are using POLLPRI.
https://bugzilla.gnome.org/show_bug.cgi?id=794977
Current code was considering "can read" as having either POLLIN or POLLPRI being
set.
This may lead to client being awaken because of POLLPRI, starting a blocking
read and getting stuck because there is actually nothing to read.
This patch removes POLLPRI handling in read code and I'll add specific
API to wait for POLLPRI.
https://bugzilla.gnome.org/show_bug.cgi?id=794977
We need all relevant events of a segment to have consistent seqnum:
* GST_EVENT_SEGMENT
* GST_EVENT_EOS
If we are push-based and create a new segment, use the same seqnum
as the upstream event.
If we are pull-based, use the seqnum of that newly created segment
event everywhere
There is a possibility that the accumlation functions don't set
a seqnum. Make sure we only set/override the seqnum of the new
messages if we *have* a valid upstream seqnum to use
When using queue2 as a queue it was using GQueue with
individually allocated queue items, so two allocs for
each item. With GstQueueArray we can avoid those.
https://bugzilla.gnome.org/show_bug.cgi?id=796483
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.
https://bugzilla.gnome.org/show_bug.cgi?id=795756
GstBitWriter provides a bit writer that can write any number of
bits into a memory buffer. It provides functions for writing any
number of bits into 8, 16, 32 and 64 bit variables.
https://bugzilla.gnome.org/show_bug.cgi?id=707543
