urisourcebin: Document and rename fields

Removes ambiguity when reading the code

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

urisourcebin: Remove unused lock/list

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

urisourcebin: Check for live source when generating element

Instead of at a later stage

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

urisourcebin: Streamline demuxer removal

And since remove_source also removes the dmeuxer, we no longer need to call it
in addition

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

urisourcebin: Clarify function name and arguments

* The "need_queue" variable is only used in one place, move it there
* Clarify the fact the function also exposes raw_pads

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

urisourcebin: Error out if a source doesn't expose pads

Looks like this fell through the cracks. If a source element doesn't have
dynamic pads and doesn't provide any source pad ... we should properly error
out.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

tsdemux: Push GST_EVENT_STREAM_COLLECTION

Demuxers that are not streams-aware will have that handled by parsebin. This
created a difference in results downstream between streams-aware and
non-streams-aware demuxers

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

adaptivedemux2: Notify that we are streams-aware

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2784>

v4l2codecs: Allow output caps to be updated

This change allow output caps to be updated even though we stay in
streaming state. This is needed so that any upstream updated to fields
like framerate, hdr data, etc. can result in a downstream caps event
being pushed.

Previously, any of these changes was being ignored and the downstream
caps would not reflect it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>

nvdecoder: Handle input caps change

Update output caps if it's notified by baseclass

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>

nvdecoder: Don't hold decoder output state

It's not referenced by this implementation

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>

examples: Add test code to verify decoder caps update

Sample command lines
* Configures pipeline with video encoder
decoder-caps-update \
  --encoder="video/x-raw,format=NV12 ! qsvh264enc" \
  --decoder=d3d11h264dec \
  --videosink=d3d11videosink

* Playing exisiting file
decoder-caps-update \
  --location=test_file.mp4 \
  --decoder=d3d11h264dec \
  --videosink=d3d11videosink

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>

d3d11decoder: Handle input caps change

Update output caps if it's notified by baseclass

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>

codecs: Keep track of non-decoding-essential input state change

In theory, input caps can be updated anytime at non-keyframe or
sequence boundary, such as HDR10 metadata, framerate, aspect-ratio
or so. Those information update might not trigger ::new_sequence()
or subclass may ignore the changes.

By this commit, input state change will be tracked by baseclass
and subclass will be able to know the non-decoding-essential
update by checking the codec specific picture struct
on ::output_picture()

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>

Revert "mpegtspacketizer: memcmp potentially seen_before data"

This reverts commit fcad4cc646a23e4e621ec5e8485958ab78d98090.

This was wrong is so many ways.

* The memcmp was badly used (it should use == 0 to check the data is identical,
  and not != 0)
* There was no boundary checks on the present stream section_data when passing
  it to memcmp.
* The return value should have been TRUE (i.e. we have done all checks, none of
  them failed, therefore the section has been seen before)
* stream->section_data would *always* be NULL if the section had already been
  processed

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1559

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3421>

mpegts: Check is program is identical before updating

There is no need to update the program if it's identical :)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3421>

rtspsrc: Fix regression when using hostname in the location property

When the address can't be parsed as an IP address, it should just be
treated as a hostname and used as-is.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1576

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3420>

avviddec: Report a latency even without upstream framerate

There are cases where upstream will not provide a framerate, or it won't be
fixed. But if there is latency introduced by the decoder we do want to report
it.

Therefore use the framerate stored in the actual decoder, which will have a
default.

Fixes hangs when playing back such streams with decodebin3 (where the multiqueue
will not have been informed of that downstream latency and not grow accordingly)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3391>

v4l2videodec: Fixes three H.264/HEVC ITU conformance tests

Postpone the cleanup of any consecutive sequence of lost frames
which starts at frame 0, until frame 100 is dequeued from driver.

This allows fluster tests JVT/CVWP2_TOSHIBA_E, JVC/CVWP3_TOSHIBA_E
and HEVC/POC_A_Bossen_3 that sends out-of-order frames to successfully
complete  (e.g., test of Amphion vpu driver).

Fixes #1569

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3398>

rtpjitterbuffer: Add test for rescheduling timers to negative times

This tests the changes introduced by 4d3b8d1129d8b863e4156cd0334e93257b9d0cc4
for issue #571.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3416>

rtpjitterbuffer: Reschedule timers when updating their offset

As EXPECTED timers are skipped the order of the timers relative to each
other can change if there are EXPECTED timers and rescheduling needs to
happen.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1422

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3416>

wavparse: Do not run all typefinders for all output

In order to figure out if the "raw" audio contained within the wav
container is actually DTS, wavparse calls the typefinder helper
except that means it runs all typefinders.

Since it only cares about checking for DTS, we should only run the
audio/x-dts typefinder (if present). Commit 858e516 did not really
fix things.

Use the new type helper with the caps to fix this.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3417>

typefindhelper: Fix docs/annotations for the new functions

Follow-up for https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3296

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3418>

rtspsrc: Consistently set seqnums on events

Set udpsrc seqnums on all events sent to the udpsrc's, and before
forwarding events out of rtspsrc set the latest seek seqnum on them if
any.

Also produce a consistent seqnum in rtspsrc from the very beginning.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3409>

rtspsrc: Make segment event writable before overriding the seqnum and use the proper API to do so

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3409>

rtspsrc: Intercept and handle events when using no manager too

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3409>

rtspsrc: Don't blindly copy over sticky events from manager pad to external source pad

This would get around the code that modifies some events when they go
through the ghost pad's proxypad. Instead go via the event function.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3409>

rtspsrc: Don't make udpsrc segment events writable just to retrieve their seqnum

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3409>

rtspsrc: Reset EOS flag also on FLUSH_STOP and not only on ssrc-active

Also don't bother not sending EOS if EOS was sent already:
gst_pad_push_event() takes care of that for us already.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3409>

pbutils: Fix vp9 mime mapping when caps when no chroma-site.

It's possible to have 4:2:0 chroma format without chroma-site in caps, but it
isn't validated by the current code. This patch fixes it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3405>

gdkpixbufoverlay: fix docs - changing images at runtime is supported

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3415>

videodecoder: Consider having output data when the subclass drops a frame

The subclass might drop a frame for QoS reasons (e.g. vpxdec) and if all
frames are dropped because of that it wouldn't make sense to post an
error message on EOS.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3408>

codectimestamper: Remove duplicated GstSegment struct

Use the one in priv struct. And use gst_segment_is_equal()
to compare GstSegment

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3380>

h264/5timestamper: provide a workaround for h264/5parse producing pts=NONE buffers

A workaround for
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/649
and
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/287
which is hard to change baseparse behaviour for both video and audio
parsers.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3380>

rtpjitterbuffer: Unlock timer waits on flushing

If there is a pending EOS wait for example, we would never unblock on flushing

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3401>

inspect: Print default value of ValueArray properties

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3377>

nvcodec: Update plugin cache

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

tests: cudaconvert: Update test code

Adding more formats, and rescale test with borders

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

cudaconvertscale, cudascale: Add "add-borders" property and support 8bits RGB planar formats

Adding "add-borders" property which is identical to that of
videoscale and this will be enabled by default.
And adding RGBP/BGRP/GBR/GBRA format support.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

cuda: Rewrite colorspace/rescale object

Rewriting GstCudaConverter object, since the old implementation was not
well organized and it's hard to add new features.
Moreover, the conversion operations were not very optimized.

Major change of this implementation:
* Remove redundant intermediate conversion operations such as
  any RGB -> ARGB(64) conversion or any YUV -> Y444 (or 16bits Y444).
  That's not required most of cases. The only required case is
  converting 24bits (such as RGB/BGR) packed format to 32bits format
  because CUDA texture object does not support sampling 24bits format
* Use normalized sample fetching (i.e., [0, 1] range float value)
  and also normalized coordinates system for CUDA texture.
  It's consistent with the other graphics APIs such as Direct3D
  and OpenGL, that makes sampling operations much easier.
* Support a kind of viewport and adopt math for colorspace conversion
  from GstD3D11 implementation

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

cudaupload,cudadownload: Add support for planar 8bits RGB formats

Defines RGBP, BGRP, and GBR formats, which have the same memory
layout as already supported Y444. And defines GBRA format as well
which needs just one additional alpha plane

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

cudacontext: Store texture alignment

it was missed in the previous refactoring

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

cudaconvert, cudascale: Port to GstCudaBaseCovert baseclass

Don't need to hold duplicated code in the source tree

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

cuda: Add convertscale element

GstCudaConverter object can do colorspace conversion and scale at once.
Adding new element "cudaconvertscale" to do that, this can
save unnecessary GPU operation if colorspace conversion and
rescale is required for given input stream format.

Most of codes are taken from d3d11convert element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3389>

typefindhelper: Use the new GstTypeFind * API

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3296>

typefindhelper: Introduce a new API for working with a GstTypeFind *

Introduce a new API that can return a GstTypeFind * with helper functions
and data set around buffer data.

While at it, drop factory field from GstTypeFindBufHelper. While it was
useful for logging, it was not passed through function arguments and keeping
it for logging would require an additional API increasing the API surface
and making it harder to use.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3296>

typefindhelper: Add helpers to improve type finding given the caps

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3296>

typefindhelper: Update annotation for function parameters

Fix the nullable/optional situation. allow-none is deprecated and
replaced by either or both of the others.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3296>

validate-scenario: Avoid timeouts on EOS

If there is an EOS and the next action is waiting for a playback time, execute
it since we are guaranteed the position won't change anymore.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3403>

gstplay: add warning message details check before post it

For some warning message which has no detail data, need check to avoid printing critical log.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3382>

tests: Add DASH MPD baseURL with query test

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1147>

mpdparser: Fix missing baseURL query

When no initializationURL or mediaURL, return baseURL that also
contains original URI query if available. This fixes a problem
where URI query was being omitted in the HTTP requests.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1147>

mpdparser: Be consistent about returning duplicated URL

Instead of returning a "const gchar" or a "gchar" that should not be freed, always
return a duplicated string as those functions were used together with g_strdup anyway.

This is needed to prepare support for returning modified strings in next commit.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1147>

mpdparser: Return correct mediaURL value

This fixes a problem where get_mediaURL was returning NULL when segmentURL
was unavailable instead of baseURL as a fallback.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1147>

d3d11converter: Fix YUY2 conversion error

Always configure shader conversion path, then fallback to the
shader path if processor is not available

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3392>

d3d11: Add support for planar RGB formats

Adding RGBP, BGRP, GBR, GBR_10LE, GBR_12LE, GBRA, GBRA_10LE, and
GBRA_12LE format support

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3392>

d3d11screencapturesrc: Update plugin cache

Missed in
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3360

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3392>

oggdemux: Don't leak incoming EOS event

If we're going to drop it ... then do drop it :)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3400>

matroskademux: Handle element's duration query.

This is small regression from commit f7abd81a.

When calling `gst_element_query()` no pad is associated with that query, but the
current code always forwards the query to the associated pad, which is NULL in
previous case. This patch checks for the pad before forwarding the query.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3404>

aesdec: Fix padding removal for per-buffer-padding=FALSE

When per-buffer-padding is FALSE, the OpenSSL context needs
to be told to remove any padding at the end of the ciphertext

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1243

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3406>

adaptivedemux2: Fix parent object leak

gst_object_get_parent() method is transfer-full, thus unref is needed

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3396>

pbutils/encoding-profile: Streamline cleanup

Cleanup all local variables in one place, and ensure failure cases go through there.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

avvidenc: Don't leak AVPacket on EOF

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

avcfg: Don't leak the support GArray when registering flag/enums

* Only create it if we are attempting to put values in it
* If we sucessfully registered the values, only free the GArray
* IF we didn't, also free the backing memory

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcodebin: Use const arguments for clarity

And rename it when it classhes with existing local variable

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcodebin: Don't leak GstStream

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcode: Don't leak caps

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcode: Don't leak timer

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

validate-scenario: Don't leak GFile

And use specific variables for clarity in loops.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

validate: Don't leak discoverer information

The various streaminfo were being overwritten without being unreffed first

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

mpegtsbase: Don't leak GList

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

validate: Don't deinit too early

If we are going to use the validate functions ... do that *before*
deinit'ing.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

streamsynchronizer: Don't leak the syncstream object

It was leaked when breaking out early when handling GST_EVENT_STREAM_START

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

uritranscodebin: Don't leak uris, profile, sinkpad and filters

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcodebin: Don't leak profile

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcodebin: Actually free the TranscodingStream structure

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

transcoder: Don't leak API bus and GMainLoop

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

avvidenc: Don't leak filename

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

encodebasebin: Don't leak muxer pad

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

pbutils/encoding-profile: Don't leak string array

It was never freed

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

streams: Reset stream id field on finalize

If debugging is activated, the parent class finalize might attempt to read it

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>

meson: d3d11: Clarify the message for WGC support check

Even Windows10 SDK seems to have required symbols depending on installed
SDK version

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3376>

d3d11screencapturesrc: Fix build error with MSVC x86

Delete the code for now. Note that the code block is unnecessary already

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3375>

Updated the Pango broken link

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2723>

Updated the GObject tutorial link

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2723>

rawvideoparse: Fix support for sub-sampled tile

This element was missed as it does not use the new helpers to calculate the
plane size. The code is relatively simple though, so adding support for
subsample tiles was easy enough.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3385>

webrtc/datachannel: handle error messages from appsrc/sink

Fixes a possible race where closing a data channel may produce e.g.
not-linked errors.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3381>

sctpdec: fix stream reset (src pad removal) if no data is ever received

If we don't receive any data from usrsctp, then there will be no src pad
for the stream id and the stream reset will fail to remove the relevant
src pad.  Workaround by first attempting to add the relevant src pad, then
almost immediately removing it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3381>

test: Correct the test suite name of the h264 and h265 bitwriter.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3384>

videocrop, videobox: Simplify navigation event handling and support touch events

Signed-off-by: Colin Kinloch <colin.kinloch@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3053>

va: Fix vapostproc navigation event co-ordinate mapping

Signed-off-by: Colin Kinloch <colin.kinloch@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3053>

vaapi: Use gst_video_orientation_from_tag to parse orientation

Signed-off-by: Colin Kinloch <colin.kinloch@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3053>

videoflip: Use gst_video_orientation_from_tag to parse orientation

Signed-off-by: Colin Kinloch <colin.kinloch@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3053>

va: Use gst_video_orientation_from_tag to parse orientation

Signed-off-by: Colin Kinloch <colin.kinloch@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3053>

msdkvpp: delete the macros to make video memory work on Windows

Since gst_msdk_import_to_msdk_surface has been implemented for d3d11, we
delete the macros to make it work on Windows.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3231>

msdkvpp: modify the way of copying system memory to msdk surface

Replace video_copy with memcpy to fix the issue when the sizes of the
src frame and dst frame don't match. Moreover, for Windows, you have to
do the copy first and call gst_msdk_import_to_msdk_surface later.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3231>

msdkvpp: add d3d11 support during negotiation

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3231>

msdkvpp: add d3d11 video memory to sink and src caps

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3231>

msdkvpp: delete use_sinkpad_va and use_srcpad_va

This two variables are no longer useful. Delete them for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3231>

msdkenc: modify the way of copying system memory to msdk surface

Replace video_copy with memcpy to fix the issue when the sizes of the
src frame and dst frame don't match. Moreover, for Windows, you have to
do the copy first and call gst_msdk_import_to_msdk_surface later.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3231>