Add GstBufferMapInfo to be used with g_auto()

We need a separate typedef for this feature because GstMapInfo itself
can be initialized by gst_memory_map() in which case info.memory should
not be unreffed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2412>

gst-inspect: Fix inspection of third-party plugins

Since commit de57657de1d1916503b4ad451ac13a3e191465f8 inspecting a third-party
plugin would trigger a segfault (Address boundary error) due to the missing
sentinel in the list of GStreamer modules.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2636>

d3d11decoder: Check 16K resolution support

16K decoding is supported by some GPUs

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2629>

ges/gstframepositioner: don't create one compositor per frame meta

Instead, cache the looked up operator property

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2623>

d3d11decoder: Add support for non-zero crop-{x,y} position

AVC and HEVC define crop rectangle and the x/y coordinates might
not be zero. This commit will address the non-zero x/y offset coordinates
via GstVideoCropMeta if downstream supports the meta and d3d11 memory.
Otherwise decoder will copy decoded texture into output frame.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2624>

d3d11converter: Implement filling border color

Equivalent to GST_VIDEO_CONVERTER_OPT_BORDER_ARGB and
GST_VIDEO_CONVERTER_OPT_FILL_BORDER options of GstVideoConverter

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2622>

d3d11converter: Objectify converter

... and set conversion options via property

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2622>

d3d11shader: Remove GstD3D11Quad helper object

It's not very generic to be used for various scenario. Use native D3D11
APIs directly instead.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2622>

d3d11compositor: Don't use GstD3D11Quad

The helper object will be removed

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2622>

d3d11overlaycompositor: Fix HLSL compiler warning

warning X3206: 'Sample': implicit truncation of vector type

And don't use GstD3D11Quad since it will result in redundant API calls

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2622>

cccombiner: expose output-padding property

When schedule=true and output-padding=false, cccombiner will not
inject padding in the output closed caption meta stream.

The property has no effect when schedule=false.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1621>

rtpsession: properly initialise favor-new property

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2625>

hlsdemux2: Look for mpegts synchronization point further

Some mpeg-ts streams have extra data at the beginning. While it's not ideal, we
should be able to cope with it.

Therefore increase the initial search window for at least 4 consecutive
synchronization points to 1kB.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2626>

webrtcbin: Limit sink query to sink pads

This allows the reception of streams that don't exactly match
the codec preferences. In particular, the ssrc in the codec preferences
is local sender SSRC, the other side is expected to send a different SSRC.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2615>

avviddec, video.c, h265parse: Workaround for broken field-based interlaced encoders

Some encoders (e.g. Makito) have H265 field-based interlacing, but then
also specify an 1:2 pixel aspect ratio. That makes it kind-of work with
decoders that don't properly support field-based decoding, but makes us
end up with the wrong aspect ratio if we implement everything properly.
As a workaround, detect 1:2 pixel aspect ratio for field-based
interlacing, and check if making that 1:1 would make the new display
aspect ratio common. In that case, we override it with 1:1.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2577>

gst-env.py: drop 'gst-' prefix from branch name in prompt

Probably leftover from the days where we would have a gst-foo.sh
script to set up the devenv for a particular checkout/branch.

Kind of confusing now if you're working on a named branch and
it just adds an extra gst- prefix in the prompt.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2594>

docs: ensure coretracers plugin index page is index.html

And not blank.html

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2592>

docs: make sure rtspclientsink plugin docs index page is called index.html

.. instead of plugin-index.html.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2592>

gst-inspect: print link to documentation for gstreamer elements

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2592>

srtsrc: add "keep-listening" property to avoid EOS on disconnect

The property 'keep-listening' avoids EOS
when the remote client disconnects.

It can be useful to a keep a pipeline alive
when the srt connection drops remotely.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/967>

srtsrc: remove dead code

Remove code useless since
132e3a1af9deb1d2cdf84d22b954967207bcc03a

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/967>

qsvh264dec: Use newly added avcC data parsing API

Use gst_h264_parser_parse_decoder_config_record() method to parse
codec_data.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2449>

h264parse: Use newly added avcC data parsing API

Use gst_h264_parser_parse_decoder_config_record() method to parse
codec_data.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2449>

h264decoder: Use newly added avcC data parsing API

Use gst_h264_parser_parse_decoder_config_record() method to parse
codec_data.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2449>

h264parser: Add an API for AVCDecoderConfigurationRecord parsing

Add a method for AVC configuration date parsing

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2449>

matroskademux: Avoid integer-overflow resulting in heap corruption in WavPack header handling code

blocksize + WAVPACK4_HEADER_SIZE might overflow gsize, which then
results in allocating a very small buffer. Into that buffer blocksize
data is memcpy'd later which then causes out of bound writes and can
potentially lead to anything from crashes to remote code execution.

Thanks to Adam Doupe for analyzing and reporting the issue.

CVE: CVE-2022-1920

https://gstreamer.freedesktop.org/security/sa-2022-0004.html

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1226

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2612>

qtdemux: Fix integer overflows in zlib decompression code

Various variables were of smaller types than needed and there were no
checks for any overflows when doing additions on the sizes. This is all
checked now.

In addition the size of the decompressed data is limited to 200MB now as
any larger sizes are likely pathological and we can avoid out of memory
situations in many cases like this.

Also fix a bug where the available output size on the next iteration in
the zlib decompression code was provided too large and could
potentially lead to out of bound writes.

Thanks to Adam Doupe for analyzing and reporting the issue.

CVE: tbd

https://gstreamer.freedesktop.org/security/sa-2022-0003.html

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2610>

matroskademux: Fix integer overflows in zlib/bz2/etc decompression code

Various variables were of smaller types than needed and there were no
checks for any overflows when doing additions on the sizes. This is all
checked now.

In addition the size of the decompressed data is limited to 120MB now as
any larger sizes are likely pathological and we can avoid out of memory
situations in many cases like this.

Also fix a bug where the available output size on the next iteration in
the zlib/bz2 decompression code was provided too large and could
potentially lead to out of bound writes.

Thanks to Adam Doupe for analyzing and reporting the issue.

CVE: CVE-2022-1922, CVE-2022-1923, CVE-2022-1924, CVE-2022-1925

https://gstreamer.freedesktop.org/security/sa-2022-0002.html

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2610>

avidemux: Fix integer overflow resulting in heap corruption in DIB buffer inversion code

Check that width*bpp/8 doesn't overflow a guint and also that
height*stride fits into the provided buffer without overflowing.

Thanks to Adam Doupe for analyzing and reporting the issue.

CVE: CVE-2022-1921

See https://gstreamer.freedesktop.org/security/sa-2022-0001.html

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1224

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2608>

queuearray: Fix potential heap overflow when expanding GstQueueArray

Check that elt_size*newsize doesn't overflow when expanding a
GstQueueArray, which has the potential for a heap overwrite.

Co-authored-by: Sebastian Dröge <sebastian@centricular.com>
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1232

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2606>

smpte: Fix integer overflow with possible heap corruption in GstMask creation.

Check that width*height*sizeof(guint32) doesn't overflow when
allocated user_data for mask, potential for heap overwrite when
inverting.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1231

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2603>

decklinkvideosink: Fix selection of > PAL widescreen modes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2601>

docs: harness: Fix example

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2602>

decodebin3: fix EOS event sequence

See docs:
https://gstreamer.freedesktop.org/documentation/additional/design/seqnums.html?gi-language=c#seqnums-sequence-numbers

Per docs:
When a sink element receives an EOS event and creates a new EOS
message to post, it should copy the seqnum from the event to the
message because the EOS message is a consequence of the EOS event
being received.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2588>

vaapi: Do not disable the whole vpp when some va operations not available.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2578>

adaptivedemux2: Prevent duplicate symbols on static builds

Uses prelude header files with #defines to rename DASH and MSS
symbols duplicated in their old standalone versions.
Also redefines soup-related functions when building it for
adaptivedemux2 to prevent symbol conflicts there.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2534>

va: basedec: Select output format with the used chroma in decoder.

Currently, video format is decided with downstream caps intersection,
but that's not correct since chroma is not considered. The video
decoders have to decide the output format given the used chroma, not
by the downstream caps negotiation.

This patch changes that. Still, caps feature is selected by caps
negotiation, then, with the preferred caps feature, the output format
is search within that caps feature.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2569>

multiqueue: fix potential crash on shutdown

The mq we get out of the weak ref might be NULL if we're
shutting down, which could cause assertion failures or
crashes.

It might also cause miscompilations where the compiler just
optimises away the NULL check because it jumps to a code path
that then dereferences the pointer which clearly isn't going
to work. Seems like something like this happens with gcc 11.

Fixes #1262

Co-authored-by: Doug Nazar <nazard@nazar.ca>
Co-authored-by: Sebastian Dröge <sebastian@centricular.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2599>

.editorconfig: Add some indentation settings

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1812>

multiqueue: fix warning: ‘is_query’ may be used uninitialized in this function

Fixes:
../plugins/elements/gstmultiqueue.c: In function ‘gst_multi_queue_loop’:
../plugins/elements/gstmultiqueue.c:2394:19: warning: ‘is_query’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 2394 |     if (object && !is_query)
      |                   ^~~~~~~~~

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2593>

adaptivedemux2: Improve reverse playback buffering.

In reverse playback, store the lowest running time in each GOP
as the input_time for buffering purposes. That means we end up
storing at least a complete GOP before declaring buffering
100%

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2510>

adaptivedemux2: reverse playback running times

Account for running time moving non-monotonically in
reverse playback by tracking the highest running time
seen at each point.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2510>

vulkan: add vulkan overlay compositor element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

vkfullscreenquad: add support for disabling clearing

e.g. if drawing over the top of an existing image, we don'w want to
clear.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

vkfullscreenquad: support setting blend operations

Allows e.g. blending with an existing image.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

vkfullscreenaud: create the vulkan command pool upfront

Allows outside to reuse the same command buffer pool much more easily.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

vulkan: add some missing GAutoPtr definitions

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

vulkan: remove unneeded #ifdef for GAutoPtr

Not necessary anymore as we depend on a new enough Glib version

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

vulkan: move element register definition to relevant element headers

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2470>

d3d11converter: Add support for colorimetry conversion

Handle color primaries and gamma functions.
HDR <-> SDR conversion (tone mapping) should be implemented as well
but not a part of this patch.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2581>

d3d11convert: Don't passthrough if colorimetry conversion is required

Different input/output colorimetry requires conversion

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2581>

d3d11window: Use SDR colorspace whenever possible

PQ uses completely different light level scale
and it should not be used for SDR bt2020.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2581>

d3d11converter: Rewrite conversion object

Rewriting GstD3D11Converter (equivalent to GstVideoConverter)
to optimize some conversion path and clean up.

* Extract YUV <-> RGB conversion matrix building method to
  utils. It will be used by other implementation
* Use calculated offset values for YCbCr <-> YPbPr conversion
  instead of hardcoded values
* Handle color range adjustment
* Move transform matrix building helper function to utils.
  The method will be used by other elements
* Use single constant buffer. Multiple constatne buffer for
  conversion pipeline is almost pointless
* Remove lots of duplicated HLSL code and split pixel shader
  code path into sampling -> colorspace conversion ->
  shader output packing
* Avoid floating point precision error around UV coordinates
* Optimize RGB -> YUV conversion path

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2581>

v4l2codecs: Add P010 pixel format

Copy V4L2_PIX_FMT_P010 define from linux header.
V4L2_PIX_FMT_P010 is the little endian definition of P010 so map
it GST_VIDEO_FORMAT_P010_10LE.
Add it v4l2 default video formats to allows v4l2 decoders to
enumerate and use it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2590>

docs: update technical howto in moving-plugins

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2583>

ci: Disable werror for documentation build

The documentation build is running on an ancient Fedora 30 image that
cannot be updated at present, and it's now triggering deprecation
warnings in system headers:

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2568#note_1418956

Disable werror here, it's not actually useful.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2568>

clock: Use g_atomic_rc_box for refcounting entry clocks

g_atomic_rc_box was added in GLib 2.58, and we require 2.62 now, so we
can fix the FIXME and use this.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2568>

Bump GLib requirement to >= 2.62

Can't require 2.64 yet because of
https://gitlab.freedesktop.org/gstreamer/cerbero/-/issues/323

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2568>

decklink: Add support for 4K DCI, 8K/UHD2 and 8K DCI modes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2570>

qsvencoder: Do not copy if input is D3D11 texture

In case that input is D3D11 texture, QSV seems to work regardless
of the alignment. Actually the alignment requirement seems to make
only sense for system memory.
Other Intel GPU dependent implementations (new VA encoder, and MediaFoundation)
do not require such alignment nor other vendor specific ones (NVENC and AMF)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2540>

d3d11decoder: Fix for alternate interlacing signalling

Don't set d3d11+interlace caps feature. None of d3d11 elements
support it

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2579>

d3d11: Add d3d11testsrc element

Adding Direct3D11 based videotestsrc element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2554>

-bad/docs: be more selective about header files to exclude

A few header files in -bad contain comments that start with the
/** gtk-doc pattern, but should not actually be parsed (and warned
about as such).

Previously, we were using far-reaching wildcard patterns to avoid
parsing those, but this had the unintended side effect of also
excluding legitimate files, and creating confusion when comments
were not parsed from those.

Switch to excluding specific files instead.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2576>

fix trivial distination -> destination

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2573>

osxaudio: remove usage of goto

It is easier to follow the code without the goto now

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2251>

osxaudio: support hidden devices

macOS features hidden devices. These are devices that will
not be shown in the macOS UIs and that cannot be retrieved
without having the specific UID of the hidden device. There
are cases when you might want to have a hidden device, for example
when having a virtual speaker that forwards the data to a virtual
hidden input device from which you can then grab the audio.
The blackhole project supports these hidden devices and
this patch provides a way that if the device id is a hidden
device it will use it instead of check the hardware list of devices
to understand if the device is valid.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2251>

osx: fix indent

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2251>

osxaudio: iterate device only if needed

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2251>

osxaudio: reduce scope of default device id variable

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2251>

amc: Add H.265 encoder mapping.

Add mime type mapping to enable the use of Android H.265 encoders

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2511>

msdkdec: Decoder should use its own pool when downstream allocator is not recognizable

Msdkdec should use it own pool when the allocation from downstream query
is not any msdk_allocator (i.e. msdk_video_allocator,
msdk_dmabuf_allocator and msdk_system_allocator). Otherwise, when using
pipeline "msdkh264dec ! vah264enc !" to transcode a not 16-bit-aligned
stream (i.e. 1920x1080), the transcoding will fail due to the size
mismatch issue between decoder pool and encoder pool.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2451>

gtk: Fix double-free when OpenGL can't be initialised

gtk_gl_area_get_error() doesn't return a copy of the error, but just the
error. If initialising OpenGL fails, then GtkGstGLWidget will consume
the error, and cause GTK to try and display freed memory.

==50914== Invalid read of size 8
==50914==    at 0x4C4CB8A: gtk_gl_area_draw_error_screen (gtkglarea.c:663)
==50914==    by 0x4C4CB8A: gtk_gl_area_draw (gtkglarea.c:687)
==50914==    by 0x4E061CA: gtk_widget_draw_internal (gtkwidget.c:7084)
==50914==    by 0x4BAEFB1: gtk_container_propagate_draw (gtkcontainer.c:3854)
==50914==    by 0x4D4B6BF: gtk_stack_render (gtkstack.c:2207)
==50914==    by 0x4BB4B03: gtk_css_custom_gadget_draw (gtkcsscustomgadget.c:159)
==50914==    by 0x4BBA4C4: gtk_css_gadget_draw (gtkcssgadget.c:885)
==50914==    by 0x4D4D780: gtk_stack_draw (gtkstack.c:2119)
==50914==    by 0x4E061CA: gtk_widget_draw_internal (gtkwidget.c:7084)
==50914==    by 0x4BAEFB1: gtk_container_propagate_draw (gtkcontainer.c:3854)
==50914==    by 0x4BAF0C3: gtk_container_draw (gtkcontainer.c:3674)
==50914==    by 0x4E061CA: gtk_widget_draw_internal (gtkwidget.c:7084)
==50914==    by 0x4BAEFB1: gtk_container_propagate_draw (gtkcontainer.c:3854)
==50914==  Address 0x187a0818 is 8 bytes inside a block of size 16 free'd
==50914==    at 0x48480E4: free (vg_replace_malloc.c:872)
==50914==    by 0x49A5B8C: g_free (gmem.c:218)
==50914==    by 0x49C1013: g_slice_free1 (gslice.c:1183)
==50914==    by 0x4990DE4: g_error_free (gerror.c:870)
==50914==    by 0x4990FE9: g_clear_error (gerror.c:1052)
==50914==    by 0x1A489780: _get_gl_context (gtkgstglwidget.c:540)
==50914==    by 0x1A4863CB: gst_gtk_invoke_func (gstgtkutils.c:39)
==50914==    by 0x49A3834: g_main_context_invoke_full (gmain.c:6137)
==50914==    by 0x1A486450: gst_gtk_invoke_on_main (gstgtkutils.c:59)
==50914==    by 0x1A48A29E: gtk_gst_gl_widget_init_winsys (gtkgstglwidget.c:632)
==50914==    by 0x1A4887E7: gst_gtk_gl_sink_start (gstgtkglsink.c:267)
==50914==    by 0x6579810: gst_base_sink_change_state (gstbasesink.c:5662)
==50914==  Block was alloc'd at
==50914==    at 0x484586F: malloc (vg_replace_malloc.c:381)
==50914==    by 0x49A9278: g_malloc (gmem.c:125)
==50914==    by 0x49C1BA5: g_slice_alloc (gslice.c:1072)
==50914==    by 0x49C3BCC: g_slice_alloc0 (gslice.c:1098)
==50914==    by 0x499096B: g_error_allocate (gerror.c:708)
==50914==    by 0x4990AF1: UnknownInlinedFun (gerror.c:722)
==50914==    by 0x4990AF1: g_error_copy (gerror.c:892)
==50914==    by 0x4C4B9F9: gtk_gl_area_set_error (gtkglarea.c:1036)
==50914==    by 0x4C4BAF7: gtk_gl_area_real_create_context (gtkglarea.c:346)
==50914==    by 0x4B21B28: _gtk_marshal_OBJECT__VOIDv (gtkmarshalers.c:2730)
==50914==    by 0x4920B78: UnknownInlinedFun (gclosure.c:893)
==50914==    by 0x4920B78: g_signal_emit_valist (gsignal.c:3406)
==50914==    by 0x4920CB2: g_signal_emit (gsignal.c:3553)
==50914==    by 0x4C4B927: gtk_gl_area_realize (gtkglarea.c:308)

Reproduced by running:
MESA_GL_VERSION_OVERRIDE=2.7 totem

See https://gitlab.gnome.org/GNOME/totem/-/issues/522

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2565>

va: Update plugin cache.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2522>

vah264enc: Guard logging functions

.. and use spec for rate control rather than static switch.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2522>

vah264enc: Support default and none rate control.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2522>

va: encoder: Rate control property.

Fixes: #1241
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2522>

webrtcbin: Add a prepare-data-channel GObject signal

This new signal allows data-channel consumers to configure signal handlers on a
newly created data-channel, before any data or state change has been notified.

The webrtcin unit-tests were refactored to make use of this new signal.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2427>

webrtcdatachannel: Chain to parent class constructed

And add a debug log statement.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2427>

flvdemux: Make use of the streams API if used in a streams-aware bin

This allows adding audio/video streams after 6s.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2559>

decklinkvideosink: Add 3G-SDI Level A output support

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2544>

Docs: Add the design document for DMA buffer sharing.

Co-authored-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Co-authored-by: Victor Jaquez <vjaquez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1431>

h264parser: Fix memory leaks in parse_user_data_unregistered().

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2551>

rtmp2: Fix allocation of GstRtmpMeta

Use the right size.

On 64-bit platforms, `GstMetaInfo` is larger than `GstRtmpMeta`, which
masked this bug. On 32-bit platforms, it causes crashes. Thanks to
@maxatka for discovering this.

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1721
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2553>

aacparse: Avoid mismatch between src_caps and output_header_type

If our downstream caps didn't intersect, we attempted to convert between
raw and ADTS stream formats, if possible. If the caps still did not
intersect, we then used the modified `src_caps` but left the
`output_header_type` unmodified.

This caused a mismatch between caps and actual stream format.

Avoid this by first copying the `src_caps` to `convcaps` for the
additional intersection tests, replacing `src_caps` if we succeed.

While we're here, clean up the code a bit and remove the `codec_data`
field from outgoing ADTS caps.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2550>

flvdemux: Actually make use of the debug category

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2552>

gstwaylandsink: Add support for the "render-rectangle" property

We already implement the `set_render_rectangle` videooverlay interface,
thus install the videooverlay property accordingly.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2479>

gstwayland: Move reusable parts of the waylandsink into a library

In preparation for the new element `GstGtkWaylandSink`, move reusable
parts out of `GstWaylandSink` into the already exisiting but very
barebone library.

Notable changes include:
 - the `GstWaylandVideo` interface was dropped
 - support for `wl-shell` was dropped
 - lots of renaming in order to match established naming patterns
 - lots of code modernisations, reducing boilerplate
 - members were made private wherever possible

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2479>

opencv: Allow building against 4.6.x

Replace the broken version checks with one modeled after
`GLIB_CHECK_VERSION`.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2557>

validate: Fix running as a tracer

We need to rebuild runner.c as this is where the plugin is defined

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2555>

webrtcbin: Reject answers that don't contain the same number of m-line as offer

Otherwise, it segfaults later. Also add test to validate this.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2526>

rfbsrc: add uri interface

Adding a uri interface enables plugging in RFB/VNC sources to anything
that makes use of uridecodebin:

gst-play-1.0 rfb://:password@10.40.216.180:5903?shared=1

Use userinfo to pass user (ignored) and password, other key/value pairs
can be encoded in the query part of the URI (see shared)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1963>

gst-env: Add support for PowerShell 7

The executable binary name of "PowerShell 7" is "pwsh.exe"
which is different from system default installed
"Windows PowerShell (version 5.x or older)"

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2545>

videoparse: rename from _free to _clear

The function does not free the structure but the data
contained within.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

video: add new video-sei.h header to the list of video_headers

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

h264parse: fix leak in user data unregistered

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

test: update tests to include the new meta

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

Fix documentation

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

h264parse: add unit test for Precision Time Stamp in SEI messages

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

h264parse: fix copying of data and UUID

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>

h264parse: add support Precision Time Stamp in SEI messages

Expose User Data Unregistered as a new Meta and add
API to parse Precision Time Stamp (ST 0604).

Fixes #927

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1458>