codecs: h264decoder: Add util macro for frame/field picture identification

Add a macro to check whether given GstH264Picture is for frame or field
decoding.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1810>

d3d11window: Prefer full color range for display target colorspace

We don't need to preserve input color range for transformed target
color space. Also some GPUs doesn't seem to be happy with 16-235
color range for RGB color space.
Also, since our default display target color space is
DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709, choosing full color range
would make more sense.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1814>

wpe: Don't crash when running on X11.

Don't assume the available EGL display is a wayland display -
instead, check the the GStreamer GL context is EGL, and then
use gst_gl_display_egl_from_gl_display to create a
GstGLDisplayEGL from that, which also adds refcounting
around the underlying EGLDisplay.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1385

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1752>

va: allocator: dmabuf: log unknown surface format

It is possible that surface format is not assigned, keeping its default
GStreamer value: unknown, but gst_video_format_to_string() doesn't print
unknown format, so this patch does it manually.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1811>

va: allocator: dmabuf: destroy VASurface if no pooled buffer

When gst_va_dmabuf_allocator_setup_buffer_full() receives info (not NULL) it is
supposed that this buffer is not part of the allocator pool, so it has to be
de-allocated as soon it is freed.

This patch sets the destroy notify of the assigned GstVaBufferSurface if info is
not NULL.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1811>

vah264dec: Allow missing reference picture

baseclass might provide reference picture list with null picture.
Ensure picture before filling picture information.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1809>

codecs: h264decoder: Don't give up to decode due to missing reference picture

Missing reference picture is very common thing for broken/malformed stream.
Decoder should be able to keep decoding if it's not a very critical error.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1809>

mpegtsdemux: Fix off by one error

Turns out timestamps of zero are valid :) Fixes issues with streams where the
PTS/DTS would be equal to the first PCR.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1807>

d3d11h264dec: Add support for interlaced stream

Add support for interlaced stream.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Add support for interlaced stream

Initial support for interlaced stream. Subclass should implement
new_field_picture() vfunc. Otherwise, baseclass will assume that
subclass doesn't support interlaced stream.

Restrictions:
* Reference picture modification process for interlaced stream
  is not implemented yet
* PAFF (Picture Adaptive Frame Field) is not properly implemented.
* Field display ordering (e.g., top-field-first) decision should
  be enhanced via picture timing SEI parsing
* Gap in field picture should be handled

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Rename DPB methods

Clarify wheter it's for picture(field) or frame in order to
support interlaced stream, because DPB size is frame unit, not picture
in case of interlaced stream.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Remove interlaced stream related constraints

... and add new_field_picture() vfunc so that ensure interlaced
decoding support by subclass.
The method will be used later with interlaced stream support.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Move to inline GstH264DecoderClass documentation

Don't duplicate documentation for class vfunc. Hotdoc doesn't seem
to be happy with duplicated documentation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Store reference picture type using enum value

Managing reference picture type by using two variables
(ref and long_term) seems to be redundant and that can be
represented by using a single enum value.

This is to sync this implementation with gstreamer-vaapi so that
make comparison between this and gstreamer-vaapi easier and also
in order to minimize the change required for subclass to be able
to support interlaced.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Minor documentation fix

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>

codecs: h264decoder: Remove DPB size related spammy debug message

It's not informative at all if SPS wasn't updated. Also we are printing
DPB size related debug message in another place already.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1806>

h264parse: try harder to update timecode

NumClockTS is the maximum number of timecodes the pic_timing SEI
can carry, but it is perfectly OK for it to carry fewer, and have
one of the clock_timestamp_flags set to 0.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1804>

h264parse: fix installing of update-timecode property

Simply fixes a typo that did not have any adverse effect,
and avoid hardcoding initializer

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1805>

codecs: h264decoder: Don't fill gap picture if it's not allowed

We should fill gap picture only if sps->gaps_in_frame_num_value_allowed_flag
is set.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1801>

openjpegenc: store stripe offset when encoding image

The decoder can simply read this offset after decoding
to know where to blit the stripe to the full frame

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1800>

openjpegenc: take subsampling into account when calculating stripe height

We calculate minimum of (stripe height * sub sampling) across all components
to ensure that all component dimensions are consistent with sub-sampling.
The last stripe for each component is simply the remaining height.

limit wavelet resolutions for "thin" stripes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1800>

openjpegenc: fix memory leak from mstream

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1800>

openjpegenc: fail negotation in handle_frame if alignment mismatch

If encoder is in stripe mode, then downstream must also support stripe

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1800>

nvcodec: Fix various typo

Not sure where the DECOCER came from

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1803>

va: comments to explain code

There are a couple part where code seems, at least to me, a bit oscure or
confusing. So let's better add an explanation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1802>

adaptivedemux: Don't calculate bitrate for header/index fragments

They are generally substantially smaller than regular fragments, and therefore
we end up pushing totally wrong bitrates downstream.

Fixes erratic buffering issues with DASH introduced by
66f5e874352016e29f555e3ce693b23474e476db

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1021>

adaptivedemux: Store QoS values on the element

Storing it per-stream requires taking the manifest lock which can apparenly be
hold for aeons. And since the QoS event comes from the video rendering thread
we *really* do not want to do that.

Storing it as-is in the element is fine, the important part is knowing the
earliest time downstream.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1021>

adaptivedemux: Don't calculate bitrate for header/index fragments

They are generally substantially smaller than regular fragments, and therefore
we end up pushing totally wrong bitrates downstream.

Fixes erratic buffering issues with DASH introduced by
66f5e874352016e29f555e3ce693b23474e476db

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1786>

hlsdemux: Don't double-free variant streams on errors

If an error happened switching to a new variant, we switch back to the previous
one ... except it will be unreffed when settin git.

In order to avoid such issues, keep a reference to the old variant until we're
sure we don't need it anymore

Fixes cases of double-free on variants and its contents

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1799>

codecs: vp8decoder: Fix two typo of struct name.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1797>

gsta2dpsink: Fix GstPad leak

The sinkpad returned by a call to gst_element_get_static_pad needs to be
unrefed.

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

bluez: a2dpsink: Add support for LDAC to a2dpsink

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

bluez: avdtpsink: Add support for LDAC to avdtpsink

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

ext: Add LDAC encoder

LDAC is an audio coding technology developed by Sony that enables the
transmission of High-Resolution (Hi-Res) audio contents over Bluetooth.

Currently Adaptive Bit Rate (ABR) as supported by libldac encoder is not
implemented.

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

mpegdemux: Set duration on seeking query if possible

Set duration on seeking query in the same way as duration query handler.
Otherwise application might get confused as if the duration is unknown.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1791>

webrtc: Update libnice version requirement to 0.1.17

Since !1366 nice_agent_get_sockets() is used, which requires 0.1.17.
Update the version requirement accordingly.

Fixes #1459.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1792>

hlsdemux: Re-use streams if possible

When switching variants, try to re-use existing streams/pads instead of creating
new ones. When dealing with urisourcebin and decodebin3 this is not only the
expected way but also avoids a lot of buffering/hang issues.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1757>

m3u8: Make a debug function usable elsewhere

The rest of the code might want to use this

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1757>

qroverlay: Generate documentation

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Add a qroverlay element that allows overlaying any data

This moves `gstqroverlay.c` to `gstdebugqroverlay.c` and implements
a simple `gstqroverlay` element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Rename qroverlay to debugqroverlay

The element is specially focus on debugging purposes and not a generique QR overlay

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Factor out qroverlay logic to a base class

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Factor out qroverlay logic to a base class

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Make subclassable

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Port to VideoFilter

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Make default pizel-size 3

Otherwise zbar isn't able to read the produced qrcodes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Cleanup the way we build the json using json-glib

And reindent the .h file removing tabs

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Fix copyright

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Fix some warnings

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Minor renaming and documentation fixes

Matching usual namings

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

qroverlay: Import from gst-qroverlay

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1730>

nvcodec: Add VP9 stateless decoder element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1738>

nvcodec: nvdecoder: Move to refcount based GstNvDecoderFrame

This refcount based way would be helpful for sharing nvdec frame among
multiple codec pictures and later zero-copy use case.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1738>

nvcodec: nvdecoder: Get rid of G_GNUC_INTERNAL

default is visibility=hidden. Don't need to use G_GNUC_INTERNAL
for new code therefore.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1738>

nvcodec: Add VP8 stateless decoder element

Like other nvcodec stateless decoders, the rank of this new nvvp8sldec
element will be secondary for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1738>

nvcodec: nvsldec: Fix typo in debug message

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1738>

mpegtspacketizer: Handle PCR issues with adaptive streams

A lot of content producers out there targetting "adaptive streaming" are riddled
with non-compliant PCR streams (essentially all the players out there just use
PTS/DTS and don't care about the PCR).

In order to gracefully cope with these, we detect them appropriately and any
small (< 15s) PCR resets get gracefully ignored.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1785>

nvcodec: leave g_once_init when all quarks are initialized

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1782>

codecs: h264decoder: Fix missing drain handling in bumping

Should've included in the commit 5527cc4a2e7ce8eeee1d8a717f99252477d6015f

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1783>

codecs: h264decoder: Try reference picture marking process in any case

... even if there is some invalid conditions
(because of broken stream, our implementation fault or so).
Otherwise baseclass will keep such reference pictures and
it would result to DPB full.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1783>

examples: Properly handle extended descriptors

By checking the extended tag. Provides a bit more information (if extended tag
is known)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1781>

d3d11h264dec: Fix for MbaffFrameFlag and FrameNumList

As per spec 7.4.3 Slice header semantics, the flag value is derived as
MbaffFrameFlag = (mb_adaptive_frame_field_flag && !field_pic_flag)
and DXVA uses the value.
Regarding FrameNumList, in case of long-term ref, FrameNumList[i]
value should be long_term_frame_idx not long_term_pic_num.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1780>

codecs: h264decoder: Reset frame number per MMCO type 5

It should be cleared so that avoid wrong frame gap detection
for following pictures.

Passing 4 more conformance bitstream tests
* MR2_TANDBERG_E
* MR3_TANDBERG_B
* MR4_TANDBERG_C
* MR5_TANDBERG_C

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1768>

codecs: h264decoder: Fix for MMCO type 2

As per 8.2.5.4.2, we should mark a picture which has
LongTermPicNum == long_term_pic_num as "unused for reference",
not pic_num.

Passing conformance bitstream test with MR2_MW_A

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1768>

codecs: h264picture: Add more trace log

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1768>

decklink: correct framerate 2KDCI 23.98

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1771>

doc: player: mention that get_pipeline method needs unref

All other methods in docs clearly mention that an unref is needed, so should `get_pipeline()`. #1450

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1764>

player: call ref_sink on pipeline

Otherwise `gst_player_get_pipeline()` will return a floating reference which may confuse bindings and lead to crash.

Fixes #1450

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1763>

meson: Enable some MSVC warnings for parity with GCC/Clang

This makes it easier to do development with MSVC by making it warn
on common issues that GCC/Clang error out for in our CI configuration.

Continuation from https://gitlab.freedesktop.org/gstreamer/gst-build/-/merge_requests/223

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1760>

va: Add HEVC decoding support

This add HEVC decoding support into the new VA plugin. This implementation has
been tested using the ITU comformance test (through fluster). It fails all
MAIN10 tests, as this is not implemented yet along with the following:

CONFWIN_A_Sony_1 (looks fine, but md5sum is incorrect)
PICSIZE_A_Bossen_1 (height too high)
PICSIZE_B_Bossen_1 (same)
VPSSPSPPS_A_MainConcept_1 (parser issue)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1714>

h265parser: Fix wrong warning message

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1714>

h265decoder: Remove unsued WpOffsetHalfRangeC

This is only needed for VA implementation of weight tables and isn't used
within the base class.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1714>

codecs: h264decoder: Rework for DPB management

Sync with recent h265decoder DPB implementation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1761>

codecs: h264decoder: Remove unused pts variable

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1761>

aiffparse: Also set a channel mask for 2 channels

And only do add debug output at FIXME level when using the fallback
channel mask, not for those defined in the AIFF spec.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1756>

webrtc: Add properties to change the socket buffer sizes to ice object

libnice doesn't touch the kernel buffer sizes. When dealing with RTP data,
it's generally advisable to increase them to avoid dropping packets locally.
This is especially important when running multiple higher bitrate streams at
the same time.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1366>

vkdeviceprovider: Avoid deadlock on physical device

Don't hold the object lock on the vk physical device while
constructing a GstVulkanDevice around it, as
GstVulkanDevice can make calls on the physical device that
require the object lock.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1754>

codecs: h265picture: Minor update for coding style

It's GstH265Dpb, not GstH265Decoder

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1755>

codecs: h265decoder: Make GstVideoCodecFrame hold the last reference of the buffer

The functionality of passing the last reference of GstH265Picture
was silently dropped by the commit eeffd91109a409063e866337452eedd392649775
This commit will make it work again.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1755>

codecs: h265decoder: Clear GstVideoCodecFrame on DPB clear if needed

h265decoder might need to clear DPB depending on context even if
it's not flushing case. So associated GstVideoCodecFrame needs to be
released in case non-flushing case.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1755>

codecs: h265decoder: Don't drain DPB on EOB/EOS/IDR nalu

DPB bumping decision per end-of-bitstream, end-of-sequence or IDR nal
should done by spec. In short, draining on EOB/EOS/IDR is undefined
behavior as per spec.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1755>

h265decoder: Complete dependent slice header

This will save the last independent slice and fill in the missing
information for dependent slices. This was left over during the porting
from gstreamer-vaapi. The private variable prev_independent_slice was
already there.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1750>

h265decoder: Prevent possible infinite loop

Theoretically, one could produce a broken stream that would lead to
infinite in the specified algorithm to calculate l0/l1 reference lists.
This patch will pearly exit if this condition is met.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1750>

h265parse: Add missing const qualifier

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1750>

Revert "d3d11decoder: Use D3D11/DXGI standard colorimetry"

This reverts commit a52fc6deeda203add520cb59ae0026d109ecda95.

The change breaks H264/HEVC conformance bitstream tests

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1753>

wlvideoformat: fix DMA format convertor

In the most of case, this typo would work. But for
ARGB8888 and XRGB8888, which shm format is not based on fourcc,
which would never appear in format enumeration.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1751>

d3d11decoder: Use D3D11/DXGI standard colorimetry

D3D11/DXGI supports smaller set of colorimetry than all possible
combination. This restriction would make more streams convertible
by using ID3D11VideoProcessor

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1743>

d3d11window: Use ID3D11VideoProcessor only if device supports corresponding conversion

... and drop support for ID3D11VideoProcessor if device doesn't
support ID3D11VideoContext1 interface and therefore we cannot
query conversion supportability.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1743>

d3d11h{264,265}dec: Submit picture level parameters only once

Submit PICTURE_PARAMETERS and INVERSE_QUANTIZATION_MATRIX
buffers only once per picture. Multiple submission is redundant.
Also this modification would fix broken hevc decoding with
dependent slice.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1749>

codecs: h265decocer: Rework for DPB management

* Move all DPB bumping process into GstH265Dpb internal
* Handle DPB add process in GstH265Dpb struct
* Make implementation to be 1:1 mappable with hevc specification
* Fix wrong DPB bumping implementation especially when no_output_of_prior_pics_flag
  was specified.

With fixes from Nicolas Dufresne <nicolas.dufresne@collabora.com>

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1748>

d3d11decoder: Get rid of framerate field from pad template

Framerate is optional value and we don't have any framerate
related restriction for those elements. This commit is to fix
negotiation failure when upstream doesn't set framerate on caps.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1747>

tests: Don't set dtlsenc state before linking.

Link the dtlsenc in the testsuite before setting it to paused, as it
starts a pad task that can generate a not-linked error otherwise.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1744>

dtls: Catch bus errors and fail instead of hanging.

If the DTLS elements fail, they post a bus error and don't signal any
key negotiation. Catch the bus error and fail the test early instead
of letting it hang and time out.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1741>

sctp: Do downward state change logic after chaining up.

Call the parent state_change function first when changing state
downward, to make sure that the element has stopped before cleaning
it up.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1741>

dtls: Avoid bio_buffer assertion on shutdown.

On shutdown, a previous iteration of dtsl_connection_process()
might be incomplete and leave a partial bio_buffer behind.

If the DTLS connection is already marked closed, drop out
of dtls_connection_process early without asserting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1741>

webrtc: Fix a race on shutdown.

The main context can disappear in gst_webrtc_bin_enqueue_task()
between checking the is_closed flag and enqueueing a source on the
main context. Protect the main context with the object lock instead
of the PC lock, and hold a ref briefly to make sure it stays alive.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1741>

webrtc: Set the DSCP markings based on the priority

This matches how the WebRTC javascript API works and the Chrome implementation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1707>

rtpsender: Add API to set the priority

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1707>

rtptransceiver: Store the SSRC of the current stream

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1707>

webrtc: Save the media kind in the transceiver

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1707>