tracing: add hooks for gst_pad_chain() / gst_pad_chain_list()

This allows tracing buffers when they arrive in a pad instead of just
when they are pushed out of a pad.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2682>

v4l2videodec: replace multiple decoder bug warnings by a single warning
(warning due to incorrectly dropped frames at initial caps adjustment)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2517>

v4l2codecs: enumerate all possible formats

Some decoder may also allow to (down) scale the decoded video.
Use VIDIOC_ENUM_FRAMESIZES iotcl to enumerate the possible output
formats resolutions.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2589>

nvcodec: Add cuda-device-id read-only property to stateless decoders

... and remove unnecessary intermediate subclass from class hierarchy

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2665>

nvcodec: Add cuda-device-id read-only property to CUVID decoders

Similar to the other hardware decoder plugins, provides assigned
device id via property

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2665>

adaptivedemux2: Ignore stopped stream flow state

When calculating the combined stream flow state
for a period, don't consider stopped streams.

Fixes switching to the next period in DASH streams
with multiple video/audio/subtitle streams.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2684>

adaptivedemux2: Clean up stream parsebins on finalize

Remove the parsebin for a stream from the overall
bin when cleaning up the stream, to avoid
keeping around old ones when moving between periods

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2676>

adaptivedemux2: Fix memory leaks and use-after-free

Fix various small memory leaks, and an invalid
access to GstEvent after giving away the ref
via gst_pad_push_event()

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2676>

hlsdemux2: Fix potential segfault

Fix a potential segfault if we receive a ISO-FF stream
with moof before moov.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2676>

hlsdemux2: Fix memory leaks

Clean up various memory leaks

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2676>

hlsdemux2: Free current_segment on finalize

Avoid a memory leak by making sure to release the
current segment on exit if non-NULL

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2676>

coding style: allow declarations after statement

See https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1243/
and https://gitlab.freedesktop.org/gstreamer/gstreamer-project/-/issues/78

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2683>

d3d11convert: Add support for GstVideoCropMeta

Performs crop, scale, and color space conversion all in
a single render pipeline. Note that cropping related property is not
added in this element (which will make negotiation very complicated),
but user can configure videocrop element for crop meta to be attached
on each buffer.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2678>

d3d11videosink: Fix for force-aspect-ratio setting when rendering on shared texture

Set specified force-aspect-ratio value on window object
in case of shared texture rendering as well

Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1304
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2671>

mfvideoenc: Fix broken encoding when resolution is not an even number

Width and height values of 4:2:0 subsampled YUV format should be even number,
and if it's not the case, there should be padding which is not a contiguous memory layout.
Do copy input frames to MediaFoundation's memory in that case for now.

Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1165
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2661>

videorate: remove property-value quotes

Fixes warnings like:
Received a structure string that contains '="0.5"'. Reading as a gdouble value, rather than a string value. This is undesired behaviour, and with GStreamer 1.22  onward, this will be interpreted as a string value instead because it is wrapped in '"' quotes. If you want to guarantee this value is read as a string, before this change, use '=(string)"0.5"' instead. If you want to read in a gdouble value, leave its value unquoted.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2621>

adaptivedemux2: track: Fix buffering time calc before output

Use the lowest track input time as the output
time when calculating track buffering levels
before anything has been dequeued.

Fixes multi-period DASH not advancing to the
next period in some cases.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2650>

adaptivedemux2: track: Add period number to most debug statements

Store the period number the track belongs to, and
add it in various debug statements

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2650>

adaptivedemux2: stream: Don't take TRACKS_LOCK when sending EOS event

The stream tracks list can't change while we're
iterating it from the scheduling thread,
and the event handler immediately takes the
tracks lock, causing a deadlock.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2650>

hlsdemux2: Improve media playlist updates

* When dealing with rendition streams, we attempt to synchronize the media
  playlist against the variant stream. This helps with speeding up the correct
  initial fragment search and avoids issues when streams at activated at a much
  later time.
* Also add checks for variant stream existence before attempting to use them

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: Only seek on selected streams

When handling seeks, there is no need to seek on unselected streams. If they
later get activated they will be properly seek onto

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

tests: check: Update hlsdemux2 tests for playlist changes

We no longer do auto-magic fallbacks when synchronizing a disconnected
playlist. It is handled at a higher level.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: Fix debug return statement

Due to latest commits res could have been NULL.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: No longer re-add segments from before the playlist

When updating playlists, there is a possibility that the playlists don't
perfectly align, but the last entry of the previous playlist is *just* before
the first entry of the new playlist.

In those cases, we still can transfer the timing information from one playlist
to another, but we do not want to return that segment as being the matching one.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: Use variant stream as support for synchronizing playlists

When matching playlists, there is a possibility that rendition streams will not
have been updated in time (for example because that stream started later, or
playback was paused). This would cause several playback failures and seeking
failures.

In order to still fall back on our feet, attempt to synchronize that rendition
playlist against the current variant playlist. This will attempt to match the
stream time using SN/DNS/PDT/...

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: Detect synchronization loss

If we have been updating too slowly and have gone out of the current live
window, inform the baseclass accordingly.

This is different from the case where we have been updating quicker than what
the server provides.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: More improvement/fixes to position tracking

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

adaptivedemux2: Handle loss of synchronization

Add a new custom GstFlowReturn so that subclasses can notify that they have lost
live synchronization.

When that happens, do a flushing seek back to the live position

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

adaptivedemux2: Fix SNAP seek handling

* Since only flushing seeks are allowed, the "current" position is always the
  global output position (and not "some" stream current position).

* In terms of figuring out to which stream to "snap" to, we can send it to any
  selected stream. Removes the requirement of this function to a specific output
  pad.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: Fix position tracking

Remove the "pending advance" hack and instead rely on the base stream current
position to track our position (instead of a potentially NULL "current
segment").

Also ensure the media playlists are always refreshed with valid stream time,
even if there is no current segment.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

hlsdemux2: Add a new method to synchronize two media playlist

This allows transfering the stream time of the playlist to an updated
variant/rendition.

This allows updating that information without having a "current segment"

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

adaptivedemux2: Initialize and use stream start/current position

The stream start and current position would be properly set when seeking or
activating a stream after playback started. But it would never be properly
initialized.

Set it to NONE initially to indicate to subclasses that no position has been
tracked yet. This will allow them to detect initial stream usage.

Futhermore, once the initial streams setup is done, make sure that it is set to
a valid initial value:
* The minimum stream time in live
* Or else the period start

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2679>

v4l2videodec: Fix activation of internal pool

If the driver does not support VIDIOC_CREATE_BUFS ioctl, the pool
configuration may get changed, which requires a validation. This would
fail to activate a pool in a case it shouldn't normally fail unless we
are out of memory.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2456>

dv, opusparse: fix duplicate symbols in static build

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1262

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2670>

d3d11: Enumerate devices via native DXGI API

D3D11CreateDevice() can fail for some reason (e.g., buggy GPU driver)
and then gst_d3d11_device_new() will return nullptr.
Use DXGI API directly instead of relying on the gst_d3d11_device_new()

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2663>

examples: Add an example for application texture sharing

This example shows GstD3D11BufferPool usage and a way of
D3D11 texture sharing between application and GStreamer via appsrc.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2646>

examples: Add d3d11decoder zero-copy rendering example

This example code demonstrates D3D11 device sharing between
application and GStreamer. Application can access texture
using appsink and it can be rendered on application's window without
any copy operation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2646>

d3d11: Add a helper method for GstContext creation

Add gst_d3d11_context_new() method for application to create
GstContext using GstD3D11Device.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2646>

d3d11memory: Add support for wrapping application texture

Add gst_d3d11_allocator_alloc_wrapped() method to support wrapping
application texture using GstD3D11Memory without copy.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2646>

d3d11: Install library headers

Our Direct3D11 abstraction layer has been improved and
it gained good shape from API point of view.
Also, On Windows, GstD3D11 has various advantages over GstGL
in terms of compatibility/stability/feature/performance.
Note that WGL implementation is known to be buggy for some
drivers/vendors/scenario (that's a reason why Google implemented ANGLE).
Moreover, GstGL is not fully optimized for Windows unfortunately.

It's the time to open this interface to application developers
for various optimized processing using our Direct3D11
infrastructure.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2646>

d3d11: Update gst_d3d11_allocation_params_new() interface

Define GST_D3D11_ALLOCATION_FLAG_DEFAULT (0) value instead of
casting enum type everywhere. And pass D3D11_RESOURCE_MISC_FLAG value

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2646>

va: postproc: add scale-method property

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2654>

va: filter/postproc: move unconditional props to vavpp

Only conditional/dynamic properties should be installed/handled
by vafilter.  Thus, move and install the unconditional/static
properties in vavpp.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2654>

va: compositor/filter: use scale method setter

Use the filter's scale method member instead of the sample's member.

Removes the filter_flags member from the composite sample.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2654>

va: filter: add scale method field and setter

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2654>

va: Add vajpegdec element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>

va: allocator: Add hack for no fourcc when surface creation.

This patch adds general mechanism for handling specific hacks. In this
case for jpeg decoder in i965 driver, which cannot create surfaces
with fourcc specified.

From jpeg decoder to the allocator, which creates the surfaces,
there's a non-simple path: basedec pseudo-class adds a hacks guint32
which will be set by actual elements (vajpegdec, in this case) and
basedec will always set the hack to the allocator when the allocator
is instantiated.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>

va: Add RGBP format definition.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>

va: caps: Add jpeg fields in coded caps.

Given the supported rt formats in a profile/entrypoint config it's
possible to know the supported JPEG colorspace and subsampling. This
patch adds this information in coded caps to a safer autoplugging
after jpegparser.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>

va: Add jpegdecoder base class.

This base class is intented for hardware accelerated decoders, but since
only VA uses it, it will be kept internally in va plugin.

It follows the same logic as the others video decoders in the library but.
as JPEG are independet images, there's no need to handle a DBP so no need
of a picture object. Instead a scan object is added with all the structures
required to decode the image (huffman and quant tables, mcus, etc.).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>

va: build: Remove duplicated source.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1575>

cudamemorycopy: Make sure writable caps before removing fields

The caps to be modified may not be writable when D3D11/GL/NVMM
are all disabled.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2664>

tests: skip unit tests for dependency-less elements that have been disabled

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1136

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2660>

examples: don't try and build jack examples if jack was disabled

Fixes meson build ERROR: Unknown variable "libjack_dep".

Fixes #1301

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2656>

va: allocator: Use always lseek to get dmabuf size.

Gallium drivers historically have reported strange dmabuf sizes, from always
zero to the whole frame (multiple fds). The simplest solution is to use lseek
SEEK_END to get the prime descriptor size.

Also the allocator raises a warning if both values differ in order to report
it to driver.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2574>

va: allocator: Fix translation of VADRMPRIMESurfaceDescriptor

VADRMPRIMESurfaceDescriptor structure describes the offsets from the
point of view of the specific handle (DMABuf). While GstVideoInfo
(and the meta) describes offsets from the point of the view of the
GstBuffer, an aggregate of all the GstMemory (1 per handle).

This changes combined with [Mesa Fix](https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16813)
fixes decoding failure with AMD driver.

Fixes #1223

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2574>

d3d11: Revert staging buffer pool implementation

The staging buffer pool implementation was added to improve
throughput performance since we can avoid per-frame
CPU copy operation via staging texture but it turned out that
we can not make it thread safe. See
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1182

Reverting the staging texture implementation as it does not show
any visible value.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2651>

qsvdecoder: Fix system memory alignment

Do right padding, not left

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2651>

d3d11decoder: Fix texture download

Stride applied to src/dst was reversed

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2651>

jpegparse: Add YUV440 sampling support.

Found some samples with this sampling, so in order to support it,
JPEG2000 header cannot be used anymore, a this patch also adds the
enums for each supported colorspace and sampling, avoiding hacks.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2641>

gst: add missing define guard

If compiled with -Dgstreamer:gst_debug=false and we have
GST_REMOVE_DISABLED defined we will get the following compiler error:

```
[...]/libgstreamer-1.0.so.0.2100.0.p/gst.c.o: in function `gst_deinit':
[...]/gst/gst.c:1258: undefined reference to `_priv_gst_debug_cleanup'
[...] hidden symbol `_priv_gst_debug_cleanup' isn't defined
```

Add the missing define guard to avoid this.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2648>

va: Use driver implementation macro rather than function.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2642>

bin: Fix race conditions in tests

The latency messages are non-deterministic and can arrive before/after
async-done or during state-changes as they are posted by e.g. sinks from
their streaming thread but bins are finishing asynchronous state changes
from a secondary helper thread.

To solve this, expect latency messages at any time and assert that we
receive one at some point during the test.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2643>

h265parse: Fix uninitialized width and height when update src caps.

The commit b90d0274 introduces uninitialized width and height when we
consider to change the "pixel-aspect-ratio" for some interlaced stream.
We need to check the resolution in the src caps, and if no resolution
info found, there is no need to consider the aspect ratio.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2630>

d3d11: Fix some typos

Fix up spelling and d3d11testsrc class meta.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2644>

element: Fix requesting of pads with string templates

Previously it was only possible to request them with the exact template
name, e.g. 'src_%s', but not with "instantiated" names that would match
this template, e.g.'src_foo_bar'.

This is now possible and a test was added for this, in addition to
fixing a previously invalid test.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2635>

d3d11compositor: Performance optimization

Removing glvideomixer-like nuance (it was initially referenced)
and rewriting element since it's not an optimal design at all
from performance point of view.

* Remove wrapper bin (and internal conversion/upload/download elements)
  which will waste CPU/GPU resources. Conversion/blending can be done by the
  d3d11compositor element at once.
* Add support YUV blending without RGB conversion.
  The RGB <-> YUV conversion is completely unnecessary since YUV textures
  support blending as well.
* Remove complicated blending operation properties since it's hard
  to use from application point of view. Instead, adding "operator" property
  like what compositor element does.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2631>

d3d11converter: Fix alpha factor update

converter should set entire constant buffer values since it's mapped
with write-discard flag

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2631>

gstwaylandsink: Add rotate-method property

Similar to and inspired by glimagesink and gtkglsink.

Using the Wayland buffer transform API allows to offload
rotate operations to the Wayland compositor. This can have
several advantages:
 - The Wayland compositor may be able to use hardware plane
   capabilities to do the rotation.
 - In case of pre-rotated content on rotated outputs the
   rotations may equal out, potentially allowing the
   compositor to use hardware planes even if they don't
   support rotate operations.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2543>

Add GstMemoryMapInfo to be used with g_auto()

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

GstVideoFrame: Add g_auto() support

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

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>