mirrors/gst-plugins-rs
mirrors/gst-plugins-rs
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git synced 2024-06-02 21:39:23 +00:00
Code Issues Projects Releases Wiki Activity

Merge branch 'master' of https://github.com/teltek/gst-plugin-ndi

Browse source
This commit is contained in:
Sebastian Dröge 2022-10-12 21:27:56 +03:00
parent e49138516c 9c540d8abb
commit 7a90500fe7
20 changed files with 6520 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
net/ndi/Cargo.toml Normal file
View file

@ -0,0 +1,33 @@
[package]
name = "gst-plugin-ndi"
version = "1.0.0"
authors = ["Ruben Gonzalez <rubenrua@teltek.es>", "Daniel Vilar <daniel.peiteado@teltek.es>", "Sebastian Dröge <sebastian@centricular.com>"]
repository = "https://github.com/teltek/gst-plugin-ndi"
license = "LGPL"
description = "NewTek NDI Plugin"
edition = "2018"
[dependencies]
glib = "0.15"
gst = { package = "gstreamer", version = "0.18", features = ["v1_12"] }
gst-base = { package = "gstreamer-base", version = "0.18" }
gst-audio = { package = "gstreamer-audio", version = "0.18" }
gst-video = { package = "gstreamer-video", version = "0.18", features = ["v1_12"] }
byte-slice-cast = "1"
once_cell = "1.0"
byteorder = "1.0"
[build-dependencies]
gst-plugin-version-helper = "0.7"
[features]
default = ["interlaced-fields", "reference-timestamps", "sink"]
interlaced-fields = ["gst/v1_16", "gst-video/v1_16"]
reference-timestamps = ["gst/v1_14"]
sink = ["gst/v1_18", "gst-base/v1_18"]
advanced-sdk = []
[lib]
name = "gstndi"
crate-type = ["cdylib"]
path = "src/lib.rs"

504
net/ndi/LICENSE Normal file
View file

@ -0,0 +1,504 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
When we speak of free software, we are referring to freedom of use,
not price. Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of
it in new free programs; and that you are informed that you can do
these things.
To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights. These restrictions translate to certain responsibilities for
you if you distribute copies of the library or if you modify it.
For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you. You must make sure that they, too, receive or can get the source
code. If you link other code with the library, you must provide
complete object files to the recipients, so that they can relink them
with the library after making changes to the library and recompiling
it. And you must show them these terms so they know their rights.
We protect your rights with a two-step method: (1) we copyright the
library, and (2) we offer you this license, which gives you legal
permission to copy, distribute and/or modify the library.
To protect each distributor, we want to make it very clear that
there is no warranty for the free library. Also, if the library is
modified by someone else and passed on, the recipients should know
that what they have is not the original version, so that the original
author's reputation will not be affected by problems that might be
introduced by others.
Finally, software patents pose a constant threat to the existence of
any free program. We wish to make sure that a company cannot
effectively restrict the users of a free program by obtaining a
restrictive license from a patent holder. Therefore, we insist that
any patent license obtained for a version of the library must be
consistent with the full freedom of use specified in this license.
Most GNU software, including some libraries, is covered by the
ordinary GNU General Public License. This license, the GNU Lesser
General Public License, applies to certain designated libraries, and
is quite different from the ordinary General Public License. We use
this license for certain libraries in order to permit linking those
libraries into non-free programs.
When a program is linked with a library, whether statically or using
a shared library, the combination of the two is legally speaking a
combined work, a derivative of the original library. The ordinary
General Public License therefore permits such linking only if the
entire combination fits its criteria of freedom. The Lesser General
Public License permits more lax criteria for linking other code with
the library.
We call this license the "Lesser" General Public License because it
does Less to protect the user's freedom than the ordinary General
Public License. It also provides other free software developers Less
of an advantage over competing non-free programs. These disadvantages
are the reason we use the ordinary General Public License for many
libraries. However, the Lesser license provides advantages in certain
special circumstances.
For example, on rare occasions, there may be a special need to
encourage the widest possible use of a certain library, so that it becomes
a de-facto standard. To achieve this, non-free programs must be
allowed to use the library. A more frequent case is that a free
library does the same job as widely used non-free libraries. In this
case, there is little to gain by limiting the free library to free
software only, so we use the Lesser General Public License.
In other cases, permission to use a particular library in non-free
programs enables a greater number of people to use a large body of
free software. For example, permission to use the GNU C Library in
non-free programs enables many more people to use the whole GNU
operating system, as well as its variant, the GNU/Linux operating
system.
Although the Lesser General Public License is Less protective of the
users' freedom, it does ensure that the user of a program that is
linked with the Library has the freedom and the wherewithal to run
that program using a modified version of the Library.
The precise terms and conditions for copying, distribution and
modification follow. Pay close attention to the difference between a
"work based on the library" and a "work that uses the library". The
former contains code derived from the library, whereas the latter must
be combined with the library in order to run.
GNU LESSER GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License Agreement applies to any software library or other
program which contains a notice placed by the copyright holder or
other authorized party saying it may be distributed under the terms of
this Lesser General Public License (also called "this License").
Each licensee is addressed as "you".
A "library" means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs
(which use some of those functions and data) to form executables.
The "Library", below, refers to any such software library or work
which has been distributed under these terms. A "work based on the
Library" means either the Library or any derivative work under
copyright law: that is to say, a work containing the Library or a
portion of it, either verbatim or with modifications and/or translated
straightforwardly into another language. (Hereinafter, translation is
included without limitation in the term "modification".)
"Source code" for a work means the preferred form of the work for
making modifications to it. For a library, complete source code means
all the source code for all modules it contains, plus any associated
interface definition files, plus the scripts used to control compilation
and installation of the library.
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running a program using the Library is not restricted, and output from
such a program is covered only if its contents constitute a work based
on the Library (independent of the use of the Library in a tool for
writing it). Whether that is true depends on what the Library does
and what the program that uses the Library does.
1. You may copy and distribute verbatim copies of the Library's
complete source code as you receive it, in any medium, provided that
you conspicuously and appropriately publish on each copy an
appropriate copyright notice and disclaimer of warranty; keep intact
all the notices that refer to this License and to the absence of any
warranty; and distribute a copy of this License along with the
Library.
You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange for a
fee.
2. You may modify your copy or copies of the Library or any portion
of it, thus forming a work based on the Library, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) The modified work must itself be a software library.
b) You must cause the files modified to carry prominent notices
stating that you changed the files and the date of any change.
c) You must cause the whole of the work to be licensed at no
charge to all third parties under the terms of this License.
d) If a facility in the modified Library refers to a function or a
table of data to be supplied by an application program that uses
the facility, other than as an argument passed when the facility
is invoked, then you must make a good faith effort to ensure that,
in the event an application does not supply such function or
table, the facility still operates, and performs whatever part of
its purpose remains meaningful.
(For example, a function in a library to compute square roots has
a purpose that is entirely well-defined independent of the
application. Therefore, Subsection 2d requires that any
application-supplied function or table used by this function must
be optional: if the application does not supply it, the square
root function must still compute square roots.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Library,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Library, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote
it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Library.
In addition, mere aggregation of another work not based on the Library
with the Library (or with a work based on the Library) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may opt to apply the terms of the ordinary GNU General Public
License instead of this License to a given copy of the Library. To do
this, you must alter all the notices that refer to this License, so
that they refer to the ordinary GNU General Public License, version 2,
instead of to this License. (If a newer version than version 2 of the
ordinary GNU General Public License has appeared, then you can specify
that version instead if you wish.) Do not make any other change in
these notices.
Once this change is made in a given copy, it is irreversible for
that copy, so the ordinary GNU General Public License applies to all
subsequent copies and derivative works made from that copy.
This option is useful when you wish to copy part of the code of
the Library into a program that is not a library.
4. You may copy and distribute the Library (or a portion or
derivative of it, under Section 2) in object code or executable form
under the terms of Sections 1 and 2 above provided that you accompany
it with the complete corresponding machine-readable source code, which
must be distributed under the terms of Sections 1 and 2 above on a
medium customarily used for software interchange.
If distribution of object code is made by offering access to copy
from a designated place, then offering equivalent access to copy the
source code from the same place satisfies the requirement to
distribute the source code, even though third parties are not
compelled to copy the source along with the object code.
5. A program that contains no derivative of any portion of the
Library, but is designed to work with the Library by being compiled or
linked with it, is called a "work that uses the Library". Such a
work, in isolation, is not a derivative work of the Library, and
therefore falls outside the scope of this License.
However, linking a "work that uses the Library" with the Library
creates an executable that is a derivative of the Library (because it
contains portions of the Library), rather than a "work that uses the
library". The executable is therefore covered by this License.
Section 6 states terms for distribution of such executables.
When a "work that uses the Library" uses material from a header file
that is part of the Library, the object code for the work may be a
derivative work of the Library even though the source code is not.
Whether this is true is especially significant if the work can be
linked without the Library, or if the work is itself a library. The
threshold for this to be true is not precisely defined by law.
If such an object file uses only numerical parameters, data
structure layouts and accessors, and small macros and small inline
functions (ten lines or less in length), then the use of the object
file is unrestricted, regardless of whether it is legally a derivative
work. (Executables containing this object code plus portions of the
Library will still fall under Section 6.)
Otherwise, if the work is a derivative of the Library, you may
distribute the object code for the work under the terms of Section 6.
Any executables containing that work also fall under Section 6,
whether or not they are linked directly with the Library itself.
6. As an exception to the Sections above, you may also combine or
link a "work that uses the Library" with the Library to produce a
work containing portions of the Library, and distribute that work
under terms of your choice, provided that the terms permit
modification of the work for the customer's own use and reverse
engineering for debugging such modifications.
You must give prominent notice with each copy of the work that the
Library is used in it and that the Library and its use are covered by
this License. You must supply a copy of this License. If the work
during execution displays copyright notices, you must include the
copyright notice for the Library among them, as well as a reference
directing the user to the copy of this License. Also, you must do one
of these things:
a) Accompany the work with the complete corresponding
machine-readable source code for the Library including whatever
changes were used in the work (which must be distributed under
Sections 1 and 2 above); and, if the work is an executable linked
with the Library, with the complete machine-readable "work that
uses the Library", as object code and/or source code, so that the
user can modify the Library and then relink to produce a modified
executable containing the modified Library. (It is understood
that the user who changes the contents of definitions files in the
Library will not necessarily be able to recompile the application
to use the modified definitions.)
b) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (1) uses at run time a
copy of the library already present on the user's computer system,
rather than copying library functions into the executable, and (2)
will operate properly with a modified version of the library, if
the user installs one, as long as the modified version is
interface-compatible with the version that the work was made with.
c) Accompany the work with a written offer, valid for at
least three years, to give the same user the materials
specified in Subsection 6a, above, for a charge no more
than the cost of performing this distribution.
d) If distribution of the work is made by offering access to copy
from a designated place, offer equivalent access to copy the above
specified materials from the same place.
e) Verify that the user has already received a copy of these
materials or that you have already sent this user a copy.
For an executable, the required form of the "work that uses the
Library" must include any data and utility programs needed for
reproducing the executable from it. However, as a special exception,
the materials to be distributed need not include anything that is
normally distributed (in either source or binary form) with the major
components (compiler, kernel, and so on) of the operating system on
which the executable runs, unless that component itself accompanies
the executable.
It may happen that this requirement contradicts the license
restrictions of other proprietary libraries that do not normally
accompany the operating system. Such a contradiction means you cannot
use both them and the Library together in an executable that you
distribute.
7. You may place library facilities that are a work based on the
Library side-by-side in a single library together with other library
facilities not covered by this License, and distribute such a combined
library, provided that the separate distribution of the work based on
the Library and of the other library facilities is otherwise
permitted, and provided that you do these two things:
a) Accompany the combined library with a copy of the same work
based on the Library, uncombined with any other library
facilities. This must be distributed under the terms of the
Sections above.
b) Give prominent notice with the combined library of the fact
that part of it is a work based on the Library, and explaining
where to find the accompanying uncombined form of the same work.
8. You may not copy, modify, sublicense, link with, or distribute
the Library except as expressly provided under this License. Any
attempt otherwise to copy, modify, sublicense, link with, or
distribute the Library is void, and will automatically terminate your
rights under this License. However, parties who have received copies,
or rights, from you under this License will not have their licenses
terminated so long as such parties remain in full compliance.
9. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Library or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Library (or any work based on the
Library), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Library or works based on it.
10. Each time you redistribute the Library (or any work based on the
Library), the recipient automatically receives a license from the
original licensor to copy, distribute, link with or modify the Library
subject to these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties with
this License.
11. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Library at all. For example, if a patent
license would not permit royalty-free redistribution of the Library by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Library.
If any portion of this section is held invalid or unenforceable under any
particular circumstance, the balance of the section is intended to apply,
and the section as a whole is intended to apply in other circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
12. If the distribution and/or use of the Library is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Library under this License may add
an explicit geographical distribution limitation excluding those countries,
so that distribution is permitted only in or among countries not thus
excluded. In such case, this License incorporates the limitation as if
written in the body of this License.
13. The Free Software Foundation may publish revised and/or new
versions of the Lesser General Public License from time to time.
Such new versions will be similar in spirit to the present version,
but may differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Library
specifies a version number of this License which applies to it and
"any later version", you have the option of following the terms and
conditions either of that version or of any later version published by
the Free Software Foundation. If the Library does not specify a
license version number, you may choose any version ever published by
the Free Software Foundation.
14. If you wish to incorporate parts of the Library into other free
programs whose distribution conditions are incompatible with these,
write to the author to ask for permission. For software which is
copyrighted by the Free Software Foundation, write to the Free
Software Foundation; we sometimes make exceptions for this. Our
decision will be guided by the two goals of preserving the free status
of all derivatives of our free software and of promoting the sharing
and reuse of software generally.
NO WARRANTY
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random
Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

81
net/ndi/README.md Normal file
View file

@ -0,0 +1,81 @@
GStreamer NDI Plugin for Linux
====================
*Compiled and tested with NDI SDK 4.0, 4.1 and 5.0*
This is a plugin for the [GStreamer](https://gstreamer.freedesktop.org/) multimedia framework that allows GStreamer to receive a stream from a [NDI](https://www.newtek.com/ndi/) source. This plugin has been developed by [Teltek](http://teltek.es/) and was funded by the [University of the Arts London](https://www.arts.ac.uk/) and [The University of Manchester](https://www.manchester.ac.uk/).
Currently the plugin has a source element for receiving from NDI sources, a sink element to provide an NDI source and a device provider for discovering NDI sources on the network.
Some examples of how to use these elements from the command line:
```console
# Information about the elements
$ gst-inspect-1.0 ndi
$ gst-inspect-1.0 ndisrc
$ gst-inspect-1.0 ndisink
# Discover all NDI sources on the network
$ gst-device-monitor-1.0 -f Source/Network:application/x-ndi
# Audio/Video source pipeline
$ gst-launch-1.0 ndisrc ndi-name="GC-DEV2 (OBS)" ! ndisrcdemux name=demux demux.video ! queue ! videoconvert ! autovideosink demux.audio ! queue ! audioconvert ! autoaudiosink
# Audio/Video sink pipeline
$ gst-launch-1.0 videotestsrc is-live=true ! video/x-raw,format=UYVY ! ndisinkcombiner name=combiner ! ndisink ndi-name="My NDI source" audiotestsrc is-live=true ! combiner.audio
```
Feel free to contribute to this project. Some ways you can contribute are:
* Testing with more hardware and software and reporting bugs
* Doing pull requests.
Compilation of the NDI element
-------
To compile the NDI element it's necessary to install Rust, the NDI SDK and the following packages for gstreamer:
```console
$ apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
gstreamer1.0-plugins-base
```
To install the required NDI library there are two options:
1. Download NDI SDK from NDI website and move the library to the correct location.
2. Use a [deb package](https://github.com/Palakis/obs-ndi/releases/download/4.5.2/libndi3_3.5.1-1_amd64.deb) made by the community. Thanks to [NDI plugin for OBS](https://github.com/Palakis/obs-ndi).
To install Rust, you can follow their documentation: https://www.rust-lang.org/en-US/install.html
Once all requirements are met, you can build the plugin by executing the following command from the project root folder:
```
cargo build
export GST_PLUGIN_PATH=`pwd`/target/debug
gst-inspect-1.0 ndi
```
By default GStreamer 1.18 is required, to use an older version. You can build with `$ cargo build --no-default-features --features whatever_you_want_to_enable_of_the_above_features`
If all went ok, you should see info related to the NDI element. To make the plugin available without using `GST_PLUGIN_PATH` it's necessary to copy the plugin to the gstreamer plugins folder.
```console
$ cargo build --release
$ sudo install -o root -g root -m 644 target/release/libgstndi.so /usr/lib/x86_64-linux-gnu/gstreamer-1.0/
$ sudo ldconfig
$ gst-inspect-1.0 ndi
```
More info about GStreamer plugins written in Rust:
----------------------------------
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs
License
-------
This plugin is licensed under the LGPL - see the [LICENSE](LICENSE) file for details
Acknowledgments
-------
* University of the Arts London and The University of Manchester.
* Sebastian Dröge (@sdroege).

3
net/ndi/build.rs Normal file
View file

@ -0,0 +1,3 @@
fn main() {
gst_plugin_version_helper::info()
}

269
net/ndi/src/device_provider/imp.rs Normal file
View file

@ -0,0 +1,269 @@
use gst::prelude::*;
use gst::subclass::prelude::*;
use gst::{gst_error, gst_log, gst_trace};
use once_cell::sync::OnceCell;
use std::sync::atomic;
use std::sync::Mutex;
use std::thread;
use once_cell::sync::Lazy;
use crate::ndi;
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
gst::DebugCategory::new(
"ndideviceprovider",
gst::DebugColorFlags::empty(),
Some("NewTek NDI Device Provider"),
)
});
#[derive(Debug)]
pub struct DeviceProvider {
thread: Mutex<Option<thread::JoinHandle<()>>>,
current_devices: Mutex<Vec<super::Device>>,
find: Mutex<Option<ndi::FindInstance>>,
is_running: atomic::AtomicBool,
}
#[glib::object_subclass]
impl ObjectSubclass for DeviceProvider {
const NAME: &'static str = "NdiDeviceProvider";
type Type = super::DeviceProvider;
type ParentType = gst::DeviceProvider;
fn new() -> Self {
Self {
thread: Mutex::new(None),
current_devices: Mutex::new(vec![]),
find: Mutex::new(None),
is_running: atomic::AtomicBool::new(false),
}
}
}
impl ObjectImpl for DeviceProvider {}
impl GstObjectImpl for DeviceProvider {}
impl DeviceProviderImpl for DeviceProvider {
fn metadata() -> Option<&'static gst::subclass::DeviceProviderMetadata> {
static METADATA: Lazy<gst::subclass::DeviceProviderMetadata> = Lazy::new(|| {
gst::subclass::DeviceProviderMetadata::new("NewTek NDI Device Provider",
"Source/Audio/Video/Network",
"NewTek NDI Device Provider",
"Ruben Gonzalez <rubenrua@teltek.es>, Daniel Vilar <daniel.peiteado@teltek.es>, Sebastian Dröge <sebastian@centricular.com>")
});
Some(&*METADATA)
}
fn probe(&self, _device_provider: &Self::Type) -> Vec<gst::Device> {
self.current_devices
.lock()
.unwrap()
.iter()
.map(|d| d.clone().upcast())
.collect()
}
fn start(&self, device_provider: &Self::Type) -> Result<(), gst::LoggableError> {
let mut thread_guard = self.thread.lock().unwrap();
if thread_guard.is_some() {
gst_log!(CAT, obj: device_provider, "Device provider already started");
return Ok(());
}
self.is_running.store(true, atomic::Ordering::SeqCst);
let device_provider_weak = device_provider.downgrade();
let mut first = true;
*thread_guard = Some(thread::spawn(move || {
let device_provider = match device_provider_weak.upgrade() {
None => return,
Some(device_provider) => device_provider,
};
let imp = DeviceProvider::from_instance(&device_provider);
{
let mut find_guard = imp.find.lock().unwrap();
if find_guard.is_some() {
gst_log!(CAT, obj: &device_provider, "Already started");
return;
}
let find = match ndi::FindInstance::builder().build() {
None => {
gst_error!(CAT, obj: &device_provider, "Failed to create Find instance");
return;
}
Some(find) => find,
};
*find_guard = Some(find);
}
loop {
let device_provider = match device_provider_weak.upgrade() {
None => break,
Some(device_provider) => device_provider,
};
let imp = DeviceProvider::from_instance(&device_provider);
if !imp.is_running.load(atomic::Ordering::SeqCst) {
break;
}
imp.poll(&device_provider, first);
first = false;
}
}));
Ok(())
}
fn stop(&self, _device_provider: &Self::Type) {
if let Some(_thread) = self.thread.lock().unwrap().take() {
self.is_running.store(false, atomic::Ordering::SeqCst);
// Don't actually join because that might take a while
}
}
}
impl DeviceProvider {
fn poll(&self, device_provider: &super::DeviceProvider, first: bool) {
let mut find_guard = self.find.lock().unwrap();
let find = match *find_guard {
None => return,
Some(ref mut find) => find,
};
if !find.wait_for_sources(if first { 1000 } else { 5000 }) {
gst_trace!(CAT, obj: device_provider, "No new sources found");
return;
}
let sources = find.get_current_sources();
let mut sources = sources.iter().map(|s| s.to_owned()).collect::<Vec<_>>();
let mut current_devices_guard = self.current_devices.lock().unwrap();
let mut expired_devices = vec![];
let mut remaining_sources = vec![];
// First check for each device we previously knew if it's still available
for old_device in &*current_devices_guard {
let old_device_imp = Device::from_instance(old_device);
let old_source = old_device_imp.source.get().unwrap();
if !sources.contains(&*old_source) {
gst_log!(
CAT,
obj: device_provider,
"Source {:?} disappeared",
old_source
);
expired_devices.push(old_device.clone());
} else {
// Otherwise remember that we had it before already and don't have to announce it
// again. After the loop we're going to remove these all from the sources vec.
remaining_sources.push(old_source.to_owned());
}
}
for remaining_source in remaining_sources {
sources.retain(|s| s != &remaining_source);
}
// Remove all expired devices from the list of cached devices
current_devices_guard.retain(|d| !expired_devices.contains(d));
// And also notify the device provider of them having disappeared
for old_device in expired_devices {
device_provider.device_remove(&old_device);
}
// Now go through all new devices and announce them
for source in sources {
gst_log!(CAT, obj: device_provider, "Source {:?} appeared", source);
let device = super::Device::new(&source);
device_provider.device_add(&device);
current_devices_guard.push(device);
}
}
}
#[derive(Debug)]
pub struct Device {
source: OnceCell<ndi::Source<'static>>,
}
#[glib::object_subclass]
impl ObjectSubclass for Device {
const NAME: &'static str = "NdiDevice";
type Type = super::Device;
type ParentType = gst::Device;
fn new() -> Self {
Self {
source: OnceCell::new(),
}
}
}
impl ObjectImpl for Device {}
impl GstObjectImpl for Device {}
impl DeviceImpl for Device {
fn create_element(
&self,
_device: &Self::Type,
name: Option<&str>,
) -> Result<gst::Element, gst::LoggableError> {
let source_info = self.source.get().unwrap();
let element = glib::Object::with_type(
crate::ndisrc::NdiSrc::static_type(),
&[
("name", &name),
("ndi-name", &source_info.ndi_name()),
("url-address", &source_info.url_address()),
],
)
.unwrap()
.dynamic_cast::<gst::Element>()
.unwrap();
Ok(element)
}
}
impl super::Device {
fn new(source: &ndi::Source<'_>) -> super::Device {
let display_name = source.ndi_name();
let device_class = "Source/Audio/Video/Network";
let element_class =
glib::Class::<gst::Element>::from_type(crate::ndisrc::NdiSrc::static_type()).unwrap();
let templ = element_class.pad_template("src").unwrap();
let caps = templ.caps();
// Put the url-address into the extra properties
let extra_properties = gst::Structure::builder("properties")
.field("ndi-name", &source.ndi_name())
.field("url-address", &source.url_address())
.build();
let device = glib::Object::new::<super::Device>(&[
("caps", &caps),
("display-name", &display_name),
("device-class", &device_class),
("properties", &extra_properties),
])
.unwrap();
let device_impl = Device::from_instance(&device);
device_impl.source.set(source.to_owned()).unwrap();
device
}
}

26
net/ndi/src/device_provider/mod.rs Normal file
View file

@ -0,0 +1,26 @@
use glib::prelude::*;
mod imp;
glib::wrapper! {
pub struct DeviceProvider(ObjectSubclass<imp::DeviceProvider>) @extends gst::DeviceProvider, gst::Object;
}
unsafe impl Send for DeviceProvider {}
unsafe impl Sync for DeviceProvider {}
glib::wrapper! {
pub struct Device(ObjectSubclass<imp::Device>) @extends gst::Device, gst::Object;
}
unsafe impl Send for Device {}
unsafe impl Sync for Device {}
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
gst::DeviceProvider::register(
Some(plugin),
"ndideviceprovider",
gst::Rank::Primary,
DeviceProvider::static_type(),
)
}

159
net/ndi/src/lib.rs Normal file
View file

@ -0,0 +1,159 @@
mod device_provider;
pub mod ndi;
#[cfg(feature = "sink")]
mod ndisink;
#[cfg(feature = "sink")]
mod ndisinkcombiner;
#[cfg(feature = "sink")]
pub mod ndisinkmeta;
mod ndisrc;
mod ndisrcdemux;
pub mod ndisrcmeta;
pub mod ndisys;
pub mod receiver;
use crate::ndi::*;
use crate::ndisys::*;
use crate::receiver::*;
use std::time;
use once_cell::sync::Lazy;
#[derive(Debug, Eq, PartialEq, Ord, PartialOrd, Hash, Clone, Copy, glib::Enum)]
#[repr(u32)]
#[enum_type(name = "GstNdiTimestampMode")]
pub enum TimestampMode {
#[enum_value(name = "Receive Time / Timecode", nick = "receive-time-vs-timecode")]
ReceiveTimeTimecode = 0,
#[enum_value(name = "Receive Time / Timestamp", nick = "receive-time-vs-timestamp")]
ReceiveTimeTimestamp = 1,
#[enum_value(name = "NDI Timecode", nick = "timecode")]
Timecode = 2,
#[enum_value(name = "NDI Timestamp", nick = "timestamp")]
Timestamp = 3,
#[enum_value(name = "Receive Time", nick = "receive-time")]
ReceiveTime = 4,
}
#[derive(Debug, Eq, PartialEq, Ord, PartialOrd, Hash, Clone, Copy, glib::Enum)]
#[repr(u32)]
#[enum_type(name = "GstNdiRecvColorFormat")]
pub enum RecvColorFormat {
#[enum_value(name = "BGRX or BGRA", nick = "bgrx-bgra")]
BgrxBgra = 0,
#[enum_value(name = "UYVY or BGRA", nick = "uyvy-bgra")]
UyvyBgra = 1,
#[enum_value(name = "RGBX or RGBA", nick = "rgbx-rgba")]
RgbxRgba = 2,
#[enum_value(name = "UYVY or RGBA", nick = "uyvy-rgba")]
UyvyRgba = 3,
#[enum_value(name = "Fastest", nick = "fastest")]
Fastest = 4,
#[enum_value(name = "Best", nick = "best")]
Best = 5,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v1", nick = "compressed-v1")]
CompressedV1 = 6,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v2", nick = "compressed-v2")]
CompressedV2 = 7,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v3", nick = "compressed-v3")]
CompressedV3 = 8,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v3 with audio", nick = "compressed-v3-with-audio")]
CompressedV3WithAudio = 9,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v4", nick = "compressed-v4")]
CompressedV4 = 10,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v4 with audio", nick = "compressed-v4-with-audio")]
CompressedV4WithAudio = 11,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v5", nick = "compressed-v5")]
CompressedV5 = 12,
#[cfg(feature = "advanced-sdk")]
#[enum_value(name = "Compressed v5 with audio", nick = "compressed-v5-with-audio")]
CompressedV5WithAudio = 13,
}
impl From<RecvColorFormat> for NDIlib_recv_color_format_e {
fn from(v: RecvColorFormat) -> Self {
match v {
RecvColorFormat::BgrxBgra => NDIlib_recv_color_format_BGRX_BGRA,
RecvColorFormat::UyvyBgra => NDIlib_recv_color_format_UYVY_BGRA,
RecvColorFormat::RgbxRgba => NDIlib_recv_color_format_RGBX_RGBA,
RecvColorFormat::UyvyRgba => NDIlib_recv_color_format_UYVY_RGBA,
RecvColorFormat::Fastest => NDIlib_recv_color_format_fastest,
RecvColorFormat::Best => NDIlib_recv_color_format_best,
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV1 => NDIlib_recv_color_format_ex_compressed,
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV2 => NDIlib_recv_color_format_ex_compressed_v2,
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV3 => NDIlib_recv_color_format_ex_compressed_v3,
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV3WithAudio => {
NDIlib_recv_color_format_ex_compressed_v3_with_audio
}
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV4 => NDIlib_recv_color_format_ex_compressed_v4,
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV4WithAudio => {
NDIlib_recv_color_format_ex_compressed_v4_with_audio
}
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV5 => NDIlib_recv_color_format_ex_compressed_v5,
#[cfg(feature = "advanced-sdk")]
RecvColorFormat::CompressedV5WithAudio => {
NDIlib_recv_color_format_ex_compressed_v5_with_audio
}
}
}
}
fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
if !ndi::initialize() {
return Err(glib::bool_error!("Cannot initialize NDI"));
}
device_provider::register(plugin)?;
ndisrc::register(plugin)?;
ndisrcdemux::register(plugin)?;
#[cfg(feature = "sink")]
{
ndisinkcombiner::register(plugin)?;
ndisink::register(plugin)?;
}
Ok(())
}
static DEFAULT_RECEIVER_NDI_NAME: Lazy<String> = Lazy::new(|| {
format!(
"GStreamer NDI Source {}-{}",
env!("CARGO_PKG_VERSION"),
env!("COMMIT_ID")
)
});
#[cfg(feature = "reference-timestamps")]
static TIMECODE_CAPS: Lazy<gst::Caps> =
Lazy::new(|| gst::Caps::new_simple("timestamp/x-ndi-timecode", &[]));
#[cfg(feature = "reference-timestamps")]
static TIMESTAMP_CAPS: Lazy<gst::Caps> =
Lazy::new(|| gst::Caps::new_simple("timestamp/x-ndi-timestamp", &[]));
gst::plugin_define!(
ndi,
env!("CARGO_PKG_DESCRIPTION"),
plugin_init,
concat!(env!("CARGO_PKG_VERSION"), "-", env!("COMMIT_ID")),
"LGPL",
env!("CARGO_PKG_NAME"),
env!("CARGO_PKG_NAME"),
env!("CARGO_PKG_REPOSITORY"),
env!("BUILD_REL_DATE")
);

1184
net/ndi/src/ndi.rs Normal file
View file

File diff suppressed because it is too large Load diff

363
net/ndi/src/ndisink/imp.rs Normal file
View file

@ -0,0 +1,363 @@
use glib::subclass::prelude::*;
use gst::prelude::*;
use gst::subclass::prelude::*;
use gst::{gst_debug, gst_error, gst_info, gst_trace};
use gst_base::prelude::*;
use gst_base::subclass::prelude::*;
use std::sync::Mutex;
use once_cell::sync::Lazy;
use crate::ndi::SendInstance;
static DEFAULT_SENDER_NDI_NAME: Lazy<String> = Lazy::new(|| {
format!(
"GStreamer NDI Sink {}-{}",
env!("CARGO_PKG_VERSION"),
env!("COMMIT_ID")
)
});
#[derive(Debug)]
struct Settings {
ndi_name: String,
}
impl Default for Settings {
fn default() -> Self {
Settings {
ndi_name: DEFAULT_SENDER_NDI_NAME.clone(),
}
}
}
struct State {
send: SendInstance,
video_info: Option<gst_video::VideoInfo>,
audio_info: Option<gst_audio::AudioInfo>,
}
pub struct NdiSink {
settings: Mutex<Settings>,
state: Mutex<Option<State>>,
}
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
gst::DebugCategory::new("ndisink", gst::DebugColorFlags::empty(), Some("NDI Sink"))
});
#[glib::object_subclass]
impl ObjectSubclass for NdiSink {
const NAME: &'static str = "NdiSink";
type Type = super::NdiSink;
type ParentType = gst_base::BaseSink;
fn new() -> Self {
Self {
settings: Mutex::new(Default::default()),
state: Mutex::new(Default::default()),
}
}
}
impl ObjectImpl for NdiSink {
fn properties() -> &'static [glib::ParamSpec] {
static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| {
vec![glib::ParamSpecString::new(
"ndi-name",
"NDI Name",
"NDI Name to use",
Some(DEFAULT_SENDER_NDI_NAME.as_ref()),
glib::ParamFlags::READWRITE,
)]
});
PROPERTIES.as_ref()
}
fn set_property(
&self,
_obj: &Self::Type,
_id: usize,
value: &glib::Value,
pspec: &glib::ParamSpec,
) {
match pspec.name() {
"ndi-name" => {
let mut settings = self.settings.lock().unwrap();
settings.ndi_name = value
.get::<String>()
.unwrap_or_else(|_| DEFAULT_SENDER_NDI_NAME.clone());
}
_ => unimplemented!(),
};
}
fn property(&self, _obj: &Self::Type, _id: usize, pspec: &glib::ParamSpec) -> glib::Value {
match pspec.name() {
"ndi-name" => {
let settings = self.settings.lock().unwrap();
settings.ndi_name.to_value()
}
_ => unimplemented!(),
}
}
}
impl GstObjectImpl for NdiSink {}
impl ElementImpl for NdiSink {
fn metadata() -> Option<&'static gst::subclass::ElementMetadata> {
static ELEMENT_METADATA: Lazy<gst::subclass::ElementMetadata> = Lazy::new(|| {
gst::subclass::ElementMetadata::new(
"NDI Sink",
"Sink/Audio/Video",
"Render as an NDI stream",
"Sebastian Dröge <sebastian@centricular.com>",
)
});
Some(&*ELEMENT_METADATA)
}
fn pad_templates() -> &'static [gst::PadTemplate] {
static PAD_TEMPLATES: Lazy<Vec<gst::PadTemplate>> = Lazy::new(|| {
let caps = gst::Caps::builder_full()
.structure(
gst::Structure::builder("video/x-raw")
.field(
"format",
&gst::List::new(&[
&gst_video::VideoFormat::Uyvy.to_str(),
&gst_video::VideoFormat::I420.to_str(),
&gst_video::VideoFormat::Nv12.to_str(),
&gst_video::VideoFormat::Nv21.to_str(),
&gst_video::VideoFormat::Yv12.to_str(),
&gst_video::VideoFormat::Bgra.to_str(),
&gst_video::VideoFormat::Bgrx.to_str(),
&gst_video::VideoFormat::Rgba.to_str(),
&gst_video::VideoFormat::Rgbx.to_str(),
]),
)
.field("width", &gst::IntRange::<i32>::new(1, std::i32::MAX))
.field("height", &gst::IntRange::<i32>::new(1, std::i32::MAX))
.field(
"framerate",
&gst::FractionRange::new(
gst::Fraction::new(0, 1),
gst::Fraction::new(std::i32::MAX, 1),
),
)
.build(),
)
.structure(
gst::Structure::builder("audio/x-raw")
.field("format", &gst_audio::AUDIO_FORMAT_F32.to_str())
.field("rate", &gst::IntRange::<i32>::new(1, i32::MAX))
.field("channels", &gst::IntRange::<i32>::new(1, i32::MAX))
.field("layout", &"interleaved")
.build(),
)
.build();
let sink_pad_template = gst::PadTemplate::new(
"sink",
gst::PadDirection::Sink,
gst::PadPresence::Always,
&caps,
)
.unwrap();
vec![sink_pad_template]
});
PAD_TEMPLATES.as_ref()
}
}
impl BaseSinkImpl for NdiSink {
fn start(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
let mut state_storage = self.state.lock().unwrap();
let settings = self.settings.lock().unwrap();
let send = SendInstance::builder(&settings.ndi_name)
.build()
.ok_or_else(|| {
gst::error_msg!(
gst::ResourceError::OpenWrite,
["Could not create send instance"]
)
})?;
let state = State {
send,
video_info: None,
audio_info: None,
};
*state_storage = Some(state);
gst_info!(CAT, obj: element, "Started");
Ok(())
}
fn stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
let mut state_storage = self.state.lock().unwrap();
*state_storage = None;
gst_info!(CAT, obj: element, "Stopped");
Ok(())
}
fn unlock(&self, _element: &Self::Type) -> Result<(), gst::ErrorMessage> {
Ok(())
}
fn unlock_stop(&self, _element: &Self::Type) -> Result<(), gst::ErrorMessage> {
Ok(())
}
fn set_caps(&self, element: &Self::Type, caps: &gst::Caps) -> Result<(), gst::LoggableError> {
gst_debug!(CAT, obj: element, "Setting caps {}", caps);
let mut state_storage = self.state.lock().unwrap();
let state = match &mut *state_storage {
None => return Err(gst::loggable_error!(CAT, "Sink not started yet")),
Some(ref mut state) => state,
};
let s = caps.structure(0).unwrap();
if s.name() == "video/x-raw" {
let info = gst_video::VideoInfo::from_caps(caps)
.map_err(|_| gst::loggable_error!(CAT, "Couldn't parse caps {}", caps))?;
state.video_info = Some(info);
state.audio_info = None;
} else {
let info = gst_audio::AudioInfo::from_caps(caps)
.map_err(|_| gst::loggable_error!(CAT, "Couldn't parse caps {}", caps))?;
state.audio_info = Some(info);
state.video_info = None;
}
Ok(())
}
fn render(
&self,
element: &Self::Type,
buffer: &gst::Buffer,
) -> Result<gst::FlowSuccess, gst::FlowError> {
let mut state_storage = self.state.lock().unwrap();
let state = match &mut *state_storage {
None => return Err(gst::FlowError::Error),
Some(ref mut state) => state,
};
if let Some(ref info) = state.video_info {
if let Some(audio_meta) = buffer.meta::<crate::ndisinkmeta::NdiSinkAudioMeta>() {
for (buffer, info, timecode) in audio_meta.buffers() {
let frame = crate::ndi::AudioFrame::try_from_buffer(info, buffer, *timecode)
.map_err(|_| {
gst_error!(CAT, obj: element, "Unsupported audio frame");
gst::FlowError::NotNegotiated
})?;
gst_trace!(
CAT,
obj: element,
"Sending audio buffer {:?} with timecode {} and format {:?}",
buffer,
if *timecode < 0 {
gst::ClockTime::NONE.display()
} else {
Some(gst::ClockTime::from_nseconds(*timecode as u64 * 100)).display()
},
info,
);
state.send.send_audio(&frame);
}
}
// Skip empty/gap buffers from ndisinkcombiner
if buffer.size() != 0 {
let timecode = element
.segment()
.downcast::<gst::ClockTime>()
.ok()
.and_then(|segment| {
segment
.to_running_time(buffer.pts())
.zip(element.base_time())
})
.and_then(|(running_time, base_time)| running_time.checked_add(base_time))
.map(|time| (time.nseconds() / 100) as i64)
.unwrap_or(crate::ndisys::NDIlib_send_timecode_synthesize);
let frame = gst_video::VideoFrameRef::from_buffer_ref_readable(buffer, info)
.map_err(|_| {
gst_error!(CAT, obj: element, "Failed to map buffer");
gst::FlowError::Error
})?;
let frame = crate::ndi::VideoFrame::try_from_video_frame(&frame, timecode)
.map_err(|_| {
gst_error!(CAT, obj: element, "Unsupported video frame");
gst::FlowError::NotNegotiated
})?;
gst_trace!(
CAT,
obj: element,
"Sending video buffer {:?} with timecode {} and format {:?}",
buffer,
if timecode < 0 {
gst::ClockTime::NONE.display()
} else {
Some(gst::ClockTime::from_nseconds(timecode as u64 * 100)).display()
},
info
);
state.send.send_video(&frame);
}
} else if let Some(ref info) = state.audio_info {
let timecode = element
.segment()
.downcast::<gst::ClockTime>()
.ok()
.and_then(|segment| {
segment
.to_running_time(buffer.pts())
.zip(element.base_time())
})
.and_then(|(running_time, base_time)| running_time.checked_add(base_time))
.map(|time| (time.nseconds() / 100) as i64)
.unwrap_or(crate::ndisys::NDIlib_send_timecode_synthesize);
let frame =
crate::ndi::AudioFrame::try_from_buffer(info, buffer, timecode).map_err(|_| {
gst_error!(CAT, obj: element, "Unsupported audio frame");
gst::FlowError::NotNegotiated
})?;
gst_trace!(
CAT,
obj: element,
"Sending audio buffer {:?} with timecode {} and format {:?}",
buffer,
if timecode < 0 {
gst::ClockTime::NONE.display()
} else {
Some(gst::ClockTime::from_nseconds(timecode as u64 * 100)).display()
},
info,
);
state.send.send_audio(&frame);
} else {
return Err(gst::FlowError::Error);
}
Ok(gst::FlowSuccess::Ok)
}
}

19
net/ndi/src/ndisink/mod.rs Normal file
View file

@ -0,0 +1,19 @@
use glib::prelude::*;
mod imp;
glib::wrapper! {
pub struct NdiSink(ObjectSubclass<imp::NdiSink>) @extends gst_base::BaseSink, gst::Element, gst::Object;
}
unsafe impl Send for NdiSink {}
unsafe impl Sync for NdiSink {}
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
gst::Element::register(
Some(plugin),
"ndisink",
gst::Rank::None,
NdiSink::static_type(),
)
}

634
net/ndi/src/ndisinkcombiner/imp.rs Normal file
View file

@ -0,0 +1,634 @@
use glib::prelude::*;
use glib::subclass::prelude::*;
use gst::prelude::*;
use gst::subclass::prelude::*;
use gst::{gst_debug, gst_error, gst_trace, gst_warning};
use gst_base::prelude::*;
use gst_base::subclass::prelude::*;
use once_cell::sync::Lazy;
use std::mem;
use std::sync::Mutex;
static CAT: once_cell::sync::Lazy<gst::DebugCategory> = once_cell::sync::Lazy::new(|| {
gst::DebugCategory::new(
"ndisinkcombiner",
gst::DebugColorFlags::empty(),
Some("NDI sink audio/video combiner"),
)
});
struct State {
// Note that this applies to the currently pending buffer on the pad and *not*
// to the current_video_buffer below!
video_info: Option<gst_video::VideoInfo>,
audio_info: Option<gst_audio::AudioInfo>,
current_video_buffer: Option<(gst::Buffer, gst::ClockTime)>,
current_audio_buffers: Vec<(gst::Buffer, gst_audio::AudioInfo, i64)>,
}
pub struct NdiSinkCombiner {
video_pad: gst_base::AggregatorPad,
audio_pad: Mutex<Option<gst_base::AggregatorPad>>,
state: Mutex<Option<State>>,
}
#[glib::object_subclass]
impl ObjectSubclass for NdiSinkCombiner {
const NAME: &'static str = "NdiSinkCombiner";
type Type = super::NdiSinkCombiner;
type ParentType = gst_base::Aggregator;
fn with_class(klass: &Self::Class) -> Self {
let templ = klass.pad_template("video").unwrap();
let video_pad =
gst::PadBuilder::<gst_base::AggregatorPad>::from_template(&templ, Some("video"))
.build();
Self {
video_pad,
audio_pad: Mutex::new(None),
state: Mutex::new(None),
}
}
}
impl ObjectImpl for NdiSinkCombiner {
fn constructed(&self, obj: &Self::Type) {
obj.add_pad(&self.video_pad).unwrap();
self.parent_constructed(obj);
}
}
impl GstObjectImpl for NdiSinkCombiner {}
impl ElementImpl for NdiSinkCombiner {
fn metadata() -> Option<&'static gst::subclass::ElementMetadata> {
static ELEMENT_METADATA: Lazy<gst::subclass::ElementMetadata> = Lazy::new(|| {
gst::subclass::ElementMetadata::new(
"NDI Sink Combiner",
"Combiner/Audio/Video",
"NDI sink audio/video combiner",
"Sebastian Dröge <sebastian@centricular.com>",
)
});
Some(&*ELEMENT_METADATA)
}
fn pad_templates() -> &'static [gst::PadTemplate] {
static PAD_TEMPLATES: Lazy<Vec<gst::PadTemplate>> = Lazy::new(|| {
let caps = gst::Caps::builder("video/x-raw")
.field(
"format",
&gst::List::new(&[
&gst_video::VideoFormat::Uyvy.to_str(),
&gst_video::VideoFormat::I420.to_str(),
&gst_video::VideoFormat::Nv12.to_str(),
&gst_video::VideoFormat::Nv21.to_str(),
&gst_video::VideoFormat::Yv12.to_str(),
&gst_video::VideoFormat::Bgra.to_str(),
&gst_video::VideoFormat::Bgrx.to_str(),
&gst_video::VideoFormat::Rgba.to_str(),
&gst_video::VideoFormat::Rgbx.to_str(),
]),
)
.field("width", &gst::IntRange::<i32>::new(1, i32::MAX))
.field("height", &gst::IntRange::<i32>::new(1, i32::MAX))
.field(
"framerate",
&gst::FractionRange::new(
gst::Fraction::new(1, i32::MAX),
gst::Fraction::new(i32::MAX, 1),
),
)
.build();
let src_pad_template = gst::PadTemplate::with_gtype(
"src",
gst::PadDirection::Src,
gst::PadPresence::Always,
&caps,
gst_base::AggregatorPad::static_type(),
)
.unwrap();
let video_sink_pad_template = gst::PadTemplate::with_gtype(
"video",
gst::PadDirection::Sink,
gst::PadPresence::Always,
&caps,
gst_base::AggregatorPad::static_type(),
)
.unwrap();
let caps = gst::Caps::builder("audio/x-raw")
.field("format", &gst_audio::AUDIO_FORMAT_F32.to_str())
.field("rate", &gst::IntRange::<i32>::new(1, i32::MAX))
.field("channels", &gst::IntRange::<i32>::new(1, i32::MAX))
.field("layout", &"interleaved")
.build();
let audio_sink_pad_template = gst::PadTemplate::with_gtype(
"audio",
gst::PadDirection::Sink,
gst::PadPresence::Request,
&caps,
gst_base::AggregatorPad::static_type(),
)
.unwrap();
vec![
src_pad_template,
video_sink_pad_template,
audio_sink_pad_template,
]
});
PAD_TEMPLATES.as_ref()
}
fn release_pad(&self, element: &Self::Type, pad: &gst::Pad) {
let mut audio_pad_storage = self.audio_pad.lock().unwrap();
if audio_pad_storage.as_ref().map(|p| p.upcast_ref()) == Some(pad) {
gst_debug!(CAT, obj: element, "Release audio pad");
self.parent_release_pad(element, pad);
*audio_pad_storage = None;
}
}
}
impl AggregatorImpl for NdiSinkCombiner {
fn create_new_pad(
&self,
agg: &Self::Type,
templ: &gst::PadTemplate,
_req_name: Option<&str>,
_caps: Option<&gst::Caps>,
) -> Option<gst_base::AggregatorPad> {
let mut audio_pad_storage = self.audio_pad.lock().unwrap();
if audio_pad_storage.is_some() {
gst_error!(CAT, obj: agg, "Audio pad already requested");
return None;
}
let sink_templ = agg.pad_template("audio").unwrap();
if templ != &sink_templ {
gst_error!(CAT, obj: agg, "Wrong pad template");
return None;
}
let pad =
gst::PadBuilder::<gst_base::AggregatorPad>::from_template(templ, Some("audio")).build();
*audio_pad_storage = Some(pad.clone());
gst_debug!(CAT, obj: agg, "Requested audio pad");
Some(pad)
}
fn start(&self, agg: &Self::Type) -> Result<(), gst::ErrorMessage> {
let mut state_storage = self.state.lock().unwrap();
*state_storage = Some(State {
audio_info: None,
video_info: None,
current_video_buffer: None,
current_audio_buffers: Vec::new(),
});
gst_debug!(CAT, obj: agg, "Started");
Ok(())
}
fn stop(&self, agg: &Self::Type) -> Result<(), gst::ErrorMessage> {
// Drop our state now
let _ = self.state.lock().unwrap().take();
gst_debug!(CAT, obj: agg, "Stopped");
Ok(())
}
fn next_time(&self, _agg: &Self::Type) -> Option<gst::ClockTime> {
// FIXME: What to do here? We don't really know when the next buffer is expected
gst::ClockTime::NONE
}
fn clip(
&self,
agg: &Self::Type,
agg_pad: &gst_base::AggregatorPad,
mut buffer: gst::Buffer,
) -> Option<gst::Buffer> {
let segment = match agg_pad.segment().downcast::<gst::ClockTime>() {
Ok(segment) => segment,
Err(_) => {
gst_error!(CAT, obj: agg, "Only TIME segments supported");
return Some(buffer);
}
};
let pts = buffer.pts();
if pts.is_none() {
gst_error!(CAT, obj: agg, "Only buffers with PTS supported");
return Some(buffer);
}
let duration = buffer.duration();
gst_trace!(
CAT,
obj: agg_pad,
"Clipping buffer {:?} with PTS {} and duration {}",
buffer,
pts.display(),
duration.display(),
);
let state_storage = self.state.lock().unwrap();
let state = match &*state_storage {
Some(ref state) => state,
None => return None,
};
let duration = if duration.is_some() {
duration
} else if let Some(ref audio_info) = state.audio_info {
gst::ClockTime::SECOND.mul_div_floor(
buffer.size() as u64,
audio_info.rate() as u64 * audio_info.bpf() as u64,
)
} else if let Some(ref video_info) = state.video_info {
if video_info.fps().numer() > 0 {
gst::ClockTime::SECOND.mul_div_floor(
video_info.fps().denom() as u64,
video_info.fps().numer() as u64,
)
} else {
gst::ClockTime::NONE
}
} else {
unreachable!()
};
gst_debug!(
CAT,
obj: agg_pad,
"Clipping buffer {:?} with PTS {} and duration {}",
buffer,
pts.display(),
duration.display(),
);
if agg_pad == &self.video_pad {
let end_pts = pts
.zip(duration)
.and_then(|(pts, duration)| pts.checked_add(duration));
segment.clip(pts, end_pts).map(|(start, stop)| {
{
let buffer = buffer.make_mut();
buffer.set_pts(start);
buffer.set_duration(
stop.zip(start)
.and_then(|(stop, start)| stop.checked_sub(start)),
);
}
buffer
})
} else if let Some(ref audio_info) = state.audio_info {
gst_audio::audio_buffer_clip(
buffer,
segment.upcast_ref(),
audio_info.rate(),
audio_info.bpf(),
)
} else {
// Can't really have audio buffers without caps
unreachable!();
}
}
fn aggregate(
&self,
agg: &Self::Type,
timeout: bool,
) -> Result<gst::FlowSuccess, gst::FlowError> {
// FIXME: Can't really happen because we always return NONE from get_next_time() but that
// should be improved!
assert!(!timeout);
// Because peek_buffer() can call into clip() and that would take the state lock again,
// first try getting buffers from both pads here
let video_buffer_and_segment = match self.video_pad.peek_buffer() {
Some(video_buffer) => {
let video_segment = self.video_pad.segment();
let video_segment = match video_segment.downcast::<gst::ClockTime>() {
Ok(video_segment) => video_segment,
Err(video_segment) => {
gst_error!(
CAT,
obj: agg,
"Video segment of wrong format {:?}",
video_segment.format()
);
return Err(gst::FlowError::Error);
}
};
Some((video_buffer, video_segment))
}
None if !self.video_pad.is_eos() => {
gst_trace!(CAT, obj: agg, "Waiting for video buffer");
return Err(gst_base::AGGREGATOR_FLOW_NEED_DATA);
}
None => None,
};
let audio_buffer_segment_and_pad;
if let Some(audio_pad) = self.audio_pad.lock().unwrap().clone() {
audio_buffer_segment_and_pad = match audio_pad.peek_buffer() {
Some(audio_buffer) if audio_buffer.size() == 0 => {
// Skip empty/gap audio buffer
audio_pad.drop_buffer();
gst_trace!(CAT, obj: agg, "Empty audio buffer, waiting for next");
return Err(gst_base::AGGREGATOR_FLOW_NEED_DATA);
}
Some(audio_buffer) => {
let audio_segment = audio_pad.segment();
let audio_segment = match audio_segment.downcast::<gst::ClockTime>() {
Ok(audio_segment) => audio_segment,
Err(audio_segment) => {
gst_error!(
CAT,
obj: agg,
"Audio segment of wrong format {:?}",
audio_segment.format()
);
return Err(gst::FlowError::Error);
}
};
Some((audio_buffer, audio_segment, audio_pad))
}
None if !audio_pad.is_eos() => {
gst_trace!(CAT, obj: agg, "Waiting for audio buffer");
return Err(gst_base::AGGREGATOR_FLOW_NEED_DATA);
}
None => None,
};
} else {
audio_buffer_segment_and_pad = None;
}
let mut state_storage = self.state.lock().unwrap();
let state = match &mut *state_storage {
Some(ref mut state) => state,
None => return Err(gst::FlowError::Flushing),
};
let (mut current_video_buffer, current_video_running_time_end, next_video_buffer) =
if let Some((video_buffer, video_segment)) = video_buffer_and_segment {
let video_running_time = video_segment.to_running_time(video_buffer.pts()).unwrap();
match state.current_video_buffer {
None => {
gst_trace!(CAT, obj: agg, "First video buffer, waiting for second");
state.current_video_buffer = Some((video_buffer, video_running_time));
drop(state_storage);
self.video_pad.drop_buffer();
return Err(gst_base::AGGREGATOR_FLOW_NEED_DATA);
}
Some((ref buffer, _)) => (
buffer.clone(),
Some(video_running_time),
Some((video_buffer, video_running_time)),
),
}
} else {
match (&state.current_video_buffer, &audio_buffer_segment_and_pad) {
(None, None) => {
gst_trace!(
CAT,
obj: agg,
"All pads are EOS and no buffers are queued, finishing"
);
return Err(gst::FlowError::Eos);
}
(None, Some((ref audio_buffer, ref audio_segment, _))) => {
// Create an empty dummy buffer for attaching the audio. This is going to
// be dropped by the sink later.
let audio_running_time =
audio_segment.to_running_time(audio_buffer.pts()).unwrap();
let video_segment = self.video_pad.segment();
let video_segment = match video_segment.downcast::<gst::ClockTime>() {
Ok(video_segment) => video_segment,
Err(video_segment) => {
gst_error!(
CAT,
obj: agg,
"Video segment of wrong format {:?}",
video_segment.format()
);
return Err(gst::FlowError::Error);
}
};
let video_pts =
video_segment.position_from_running_time(audio_running_time);
if video_pts.is_none() {
gst_warning!(CAT, obj: agg, "Can't output more audio after video EOS");
return Err(gst::FlowError::Eos);
}
let mut buffer = gst::Buffer::new();
{
let buffer = buffer.get_mut().unwrap();
buffer.set_pts(video_pts);
}
(buffer, gst::ClockTime::NONE, None)
}
(Some((ref buffer, _)), _) => (buffer.clone(), gst::ClockTime::NONE, None),
}
};
if let Some((audio_buffer, audio_segment, audio_pad)) = audio_buffer_segment_and_pad {
let audio_info = match state.audio_info {
Some(ref audio_info) => audio_info,
None => {
gst_error!(CAT, obj: agg, "Have no audio caps");
return Err(gst::FlowError::NotNegotiated);
}
};
let audio_running_time = audio_segment.to_running_time(audio_buffer.pts());
let duration = gst::ClockTime::SECOND.mul_div_floor(
audio_buffer.size() as u64 / audio_info.bpf() as u64,
audio_info.rate() as u64,
);
let audio_running_time_end = audio_running_time
.zip(duration)
.and_then(|(running_time, duration)| running_time.checked_add(duration));
if audio_running_time_end
.zip(current_video_running_time_end)
.map(|(audio, video)| audio <= video)
.unwrap_or(true)
{
let timecode = agg
.base_time()
.zip(audio_running_time)
.map(|(base_time, audio_running_time)| {
((base_time.nseconds() + audio_running_time.nseconds()) / 100) as i64
})
.unwrap_or(crate::ndisys::NDIlib_send_timecode_synthesize);
gst_trace!(
CAT,
obj: agg,
"Including audio buffer {:?} with timecode {}: {} <= {}",
audio_buffer,
timecode,
audio_running_time_end.display(),
current_video_running_time_end.display(),
);
state
.current_audio_buffers
.push((audio_buffer, audio_info.clone(), timecode));
audio_pad.drop_buffer();
// If there is still video data, wait for the next audio buffer or EOS,
// otherwise just output the dummy video buffer directly.
if current_video_running_time_end.is_some() {
return Err(gst_base::AGGREGATOR_FLOW_NEED_DATA);
}
}
// Otherwise finish this video buffer with all audio that has accumulated so
// far
}
let audio_buffers = mem::take(&mut state.current_audio_buffers);
if !audio_buffers.is_empty() {
let current_video_buffer = current_video_buffer.make_mut();
crate::ndisinkmeta::NdiSinkAudioMeta::add(current_video_buffer, audio_buffers);
}
if let Some((video_buffer, video_running_time)) = next_video_buffer {
state.current_video_buffer = Some((video_buffer, video_running_time));
drop(state_storage);
self.video_pad.drop_buffer();
} else {
state.current_video_buffer = None;
drop(state_storage);
}
gst_trace!(
CAT,
obj: agg,
"Finishing video buffer {:?}",
current_video_buffer
);
agg.finish_buffer(current_video_buffer)
}
fn sink_event(
&self,
agg: &Self::Type,
pad: &gst_base::AggregatorPad,
event: gst::Event,
) -> bool {
use gst::EventView;
match event.view() {
EventView::Caps(caps) => {
let caps = caps.caps_owned();
let mut state_storage = self.state.lock().unwrap();
let state = match &mut *state_storage {
Some(ref mut state) => state,
None => return false,
};
if pad == &self.video_pad {
let info = match gst_video::VideoInfo::from_caps(&caps) {
Ok(info) => info,
Err(_) => {
gst_error!(CAT, obj: pad, "Failed to parse caps {:?}", caps);
return false;
}
};
// 2 frames latency because we queue 1 frame and wait until audio
// up to the end of that frame has arrived.
let latency = if info.fps().numer() > 0 {
gst::ClockTime::SECOND
.mul_div_floor(2 * info.fps().denom() as u64, info.fps().numer() as u64)
.unwrap_or(80 * gst::ClockTime::MSECOND)
} else {
// let's assume 25fps and 2 frames latency
80 * gst::ClockTime::MSECOND
};
state.video_info = Some(info);
drop(state_storage);
agg.set_latency(latency, gst::ClockTime::NONE);
// The video caps are passed through as the audio is included only in a meta
agg.set_src_caps(&caps);
} else {
let info = match gst_audio::AudioInfo::from_caps(&caps) {
Ok(info) => info,
Err(_) => {
gst_error!(CAT, obj: pad, "Failed to parse caps {:?}", caps);
return false;
}
};
state.audio_info = Some(info);
}
}
// The video segment is passed through as-is and the video timestamps are preserved
EventView::Segment(segment) if pad == &self.video_pad => {
let segment = segment.segment();
gst_debug!(CAT, obj: agg, "Updating segment {:?}", segment);
agg.update_segment(segment);
}
_ => (),
}
self.parent_sink_event(agg, pad, event)
}
fn sink_query(
&self,
agg: &Self::Type,
pad: &gst_base::AggregatorPad,
query: &mut gst::QueryRef,
) -> bool {
use gst::QueryView;
match query.view_mut() {
QueryView::Caps(_) if pad == &self.video_pad => {
// Directly forward caps queries
let srcpad = agg.static_pad("src").unwrap();
return srcpad.peer_query(query);
}
_ => (),
}
self.parent_sink_query(agg, pad, query)
}
fn negotiate(&self, _agg: &Self::Type) -> bool {
// No negotiation needed as the video caps are just passed through
true
}
}

19
net/ndi/src/ndisinkcombiner/mod.rs Normal file
View file

@ -0,0 +1,19 @@
use glib::prelude::*;
mod imp;
glib::wrapper! {
pub struct NdiSinkCombiner(ObjectSubclass<imp::NdiSinkCombiner>) @extends gst_base::Aggregator, gst::Element, gst::Object;
}
unsafe impl Send for NdiSinkCombiner {}
unsafe impl Sync for NdiSinkCombiner {}
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
gst::Element::register(
Some(plugin),
"ndisinkcombiner",
gst::Rank::None,
NdiSinkCombiner::static_type(),
)
}

142
net/ndi/src/ndisinkmeta.rs Normal file
View file

@ -0,0 +1,142 @@
use gst::prelude::*;
use std::fmt;
use std::mem;
#[repr(transparent)]
pub struct NdiSinkAudioMeta(imp::NdiSinkAudioMeta);
unsafe impl Send for NdiSinkAudioMeta {}
unsafe impl Sync for NdiSinkAudioMeta {}
impl NdiSinkAudioMeta {
pub fn add(
buffer: &mut gst::BufferRef,
buffers: Vec<(gst::Buffer, gst_audio::AudioInfo, i64)>,
) -> gst::MetaRefMut<Self, gst::meta::Standalone> {
unsafe {
// Manually dropping because gst_buffer_add_meta() takes ownership of the
// content of the struct
let mut params = mem::ManuallyDrop::new(imp::NdiSinkAudioMetaParams { buffers });
let meta = gst::ffi::gst_buffer_add_meta(
buffer.as_mut_ptr(),
imp::ndi_sink_audio_meta_get_info(),
&mut *params as *mut imp::NdiSinkAudioMetaParams as glib::ffi::gpointer,
) as *mut imp::NdiSinkAudioMeta;
Self::from_mut_ptr(buffer, meta)
}
}
pub fn buffers(&self) -> &[(gst::Buffer, gst_audio::AudioInfo, i64)] {
&self.0.buffers
}
}
unsafe impl MetaAPI for NdiSinkAudioMeta {
type GstType = imp::NdiSinkAudioMeta;
fn meta_api() -> glib::Type {
imp::ndi_sink_audio_meta_api_get_type()
}
}
impl fmt::Debug for NdiSinkAudioMeta {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("NdiSinkAudioMeta")
.field("buffers", &self.buffers())
.finish()
}
}
mod imp {
use glib::translate::*;
use once_cell::sync::Lazy;
use std::mem;
use std::ptr;
pub(super) struct NdiSinkAudioMetaParams {
pub buffers: Vec<(gst::Buffer, gst_audio::AudioInfo, i64)>,
}
#[repr(C)]
pub struct NdiSinkAudioMeta {
parent: gst::ffi::GstMeta,
pub(super) buffers: Vec<(gst::Buffer, gst_audio::AudioInfo, i64)>,
}
pub(super) fn ndi_sink_audio_meta_api_get_type() -> glib::Type {
static TYPE: Lazy<glib::Type> = Lazy::new(|| unsafe {
let t = from_glib(gst::ffi::gst_meta_api_type_register(
b"GstNdiSinkAudioMetaAPI\0".as_ptr() as *const _,
[ptr::null::<std::os::raw::c_char>()].as_ptr() as *mut *const _,
));
assert_ne!(t, glib::Type::INVALID);
t
});
*TYPE
}
unsafe extern "C" fn ndi_sink_audio_meta_init(
meta: *mut gst::ffi::GstMeta,
params: glib::ffi::gpointer,
_buffer: *mut gst::ffi::GstBuffer,
) -> glib::ffi::gboolean {
assert!(!params.is_null());
let meta = &mut *(meta as *mut NdiSinkAudioMeta);
let params = ptr::read(params as *const NdiSinkAudioMetaParams);
ptr::write(&mut meta.buffers, params.buffers);
true.into_glib()
}
unsafe extern "C" fn ndi_sink_audio_meta_free(
meta: *mut gst::ffi::GstMeta,
_buffer: *mut gst::ffi::GstBuffer,
) {
let meta = &mut *(meta as *mut NdiSinkAudioMeta);
ptr::drop_in_place(&mut meta.buffers);
}
unsafe extern "C" fn ndi_sink_audio_meta_transform(
dest: *mut gst::ffi::GstBuffer,
meta: *mut gst::ffi::GstMeta,
_buffer: *mut gst::ffi::GstBuffer,
_type_: glib::ffi::GQuark,
_data: glib::ffi::gpointer,
) -> glib::ffi::gboolean {
let meta = &*(meta as *mut NdiSinkAudioMeta);
super::NdiSinkAudioMeta::add(gst::BufferRef::from_mut_ptr(dest), meta.buffers.clone());
true.into_glib()
}
pub(super) fn ndi_sink_audio_meta_get_info() -> *const gst::ffi::GstMetaInfo {
struct MetaInfo(ptr::NonNull<gst::ffi::GstMetaInfo>);
unsafe impl Send for MetaInfo {}
unsafe impl Sync for MetaInfo {}
static META_INFO: Lazy<MetaInfo> = Lazy::new(|| unsafe {
MetaInfo(
ptr::NonNull::new(gst::ffi::gst_meta_register(
ndi_sink_audio_meta_api_get_type().into_glib(),
b"GstNdiSinkAudioMeta\0".as_ptr() as *const _,
mem::size_of::<NdiSinkAudioMeta>(),
Some(ndi_sink_audio_meta_init),
Some(ndi_sink_audio_meta_free),
Some(ndi_sink_audio_meta_transform),
) as *mut gst::ffi::GstMetaInfo)
.expect("Failed to register meta API"),
)
});
META_INFO.0.as_ptr()
}
}

632
net/ndi/src/ndisrc/imp.rs Normal file
View file

@ -0,0 +1,632 @@
use gst::prelude::*;
use gst::subclass::prelude::*;
use gst::{gst_debug, gst_error};
use gst_base::prelude::*;
use gst_base::subclass::base_src::CreateSuccess;
use gst_base::subclass::prelude::*;
use std::sync::Mutex;
use std::{i32, u32};
use once_cell::sync::Lazy;
use crate::ndisys;
use crate::ndisrcmeta;
use crate::Buffer;
use crate::Receiver;
use crate::ReceiverControlHandle;
use crate::ReceiverItem;
use crate::RecvColorFormat;
use crate::TimestampMode;
use crate::DEFAULT_RECEIVER_NDI_NAME;
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
gst::DebugCategory::new(
"ndisrc",
gst::DebugColorFlags::empty(),
Some("NewTek NDI Source"),
)
});
#[derive(Debug, Clone)]
struct Settings {
ndi_name: Option<String>,
url_address: Option<String>,
connect_timeout: u32,
timeout: u32,
max_queue_length: u32,
receiver_ndi_name: String,
bandwidth: ndisys::NDIlib_recv_bandwidth_e,
color_format: RecvColorFormat,
timestamp_mode: TimestampMode,
}
impl Default for Settings {
fn default() -> Self {
Settings {
ndi_name: None,
url_address: None,
receiver_ndi_name: DEFAULT_RECEIVER_NDI_NAME.clone(),
connect_timeout: 10000,
timeout: 5000,
max_queue_length: 10,
bandwidth: ndisys::NDIlib_recv_bandwidth_highest,
color_format: RecvColorFormat::UyvyBgra,
timestamp_mode: TimestampMode::ReceiveTimeTimecode,
}
}
}
struct State {
video_info: Option<crate::VideoInfo>,
video_caps: Option<gst::Caps>,
audio_info: Option<crate::AudioInfo>,
audio_caps: Option<gst::Caps>,
current_latency: Option<gst::ClockTime>,
receiver: Option<Receiver>,
}
impl Default for State {
fn default() -> State {
State {
video_info: None,
video_caps: None,
audio_info: None,
audio_caps: None,
current_latency: gst::ClockTime::NONE,
receiver: None,
}
}
}
pub struct NdiSrc {
settings: Mutex<Settings>,
state: Mutex<State>,
receiver_controller: Mutex<Option<ReceiverControlHandle>>,
}
#[glib::object_subclass]
impl ObjectSubclass for NdiSrc {
const NAME: &'static str = "NdiSrc";
type Type = super::NdiSrc;
type ParentType = gst_base::BaseSrc;
fn new() -> Self {
Self {
settings: Mutex::new(Default::default()),
state: Mutex::new(Default::default()),
receiver_controller: Mutex::new(None),
}
}
}
impl ObjectImpl for NdiSrc {
fn properties() -> &'static [glib::ParamSpec] {
static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| {
vec![
glib::ParamSpecString::new(
"ndi-name",
"NDI Name",
"NDI stream name of the sender",
None,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecString::new(
"url-address",
"URL/Address",
"URL/address and port of the sender, e.g. 127.0.0.1:5961",
None,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecString::new(
"receiver-ndi-name",
"Receiver NDI Name",
"NDI stream name of this receiver",
Some(&*DEFAULT_RECEIVER_NDI_NAME),
glib::ParamFlags::READWRITE,
),
glib::ParamSpecUInt::new(
"connect-timeout",
"Connect Timeout",
"Connection timeout in ms",
0,
u32::MAX,
10000,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecUInt::new(
"timeout",
"Timeout",
"Receive timeout in ms",
0,
u32::MAX,
5000,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecUInt::new(
"max-queue-length",
"Max Queue Length",
"Maximum receive queue length",
0,
u32::MAX,
10,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecInt::new(
"bandwidth",
"Bandwidth",
"Bandwidth, -10 metadata-only, 10 audio-only, 100 highest",
-10,
100,
100,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecEnum::new(
"color-format",
"Color Format",
"Receive color format",
RecvColorFormat::static_type(),
RecvColorFormat::UyvyBgra as u32 as i32,
glib::ParamFlags::READWRITE,
),
glib::ParamSpecEnum::new(
"timestamp-mode",
"Timestamp Mode",
"Timestamp information to use for outgoing PTS",
TimestampMode::static_type(),
TimestampMode::ReceiveTimeTimecode as i32,
glib::ParamFlags::READWRITE,
),
]
});
PROPERTIES.as_ref()
}
fn constructed(&self, obj: &Self::Type) {
self.parent_constructed(obj);
// Initialize live-ness and notify the base class that
// we'd like to operate in Time format
obj.set_live(true);
obj.set_format(gst::Format::Time);
}
fn set_property(
&self,
obj: &Self::Type,
_id: usize,
value: &glib::Value,
pspec: &glib::ParamSpec,
) {
match pspec.name() {
"ndi-name" => {
let mut settings = self.settings.lock().unwrap();
let ndi_name = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing ndi-name from {:?} to {:?}",
settings.ndi_name,
ndi_name,
);
settings.ndi_name = ndi_name;
}
"url-address" => {
let mut settings = self.settings.lock().unwrap();
let url_address = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing url-address from {:?} to {:?}",
settings.url_address,
url_address,
);
settings.url_address = url_address;
}
"receiver-ndi-name" => {
let mut settings = self.settings.lock().unwrap();
let receiver_ndi_name = value.get::<Option<String>>().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing receiver-ndi-name from {:?} to {:?}",
settings.receiver_ndi_name,
receiver_ndi_name,
);
settings.receiver_ndi_name =
receiver_ndi_name.unwrap_or_else(|| DEFAULT_RECEIVER_NDI_NAME.clone());
}
"connect-timeout" => {
let mut settings = self.settings.lock().unwrap();
let connect_timeout = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing connect-timeout from {} to {}",
settings.connect_timeout,
connect_timeout,
);
settings.connect_timeout = connect_timeout;
}
"timeout" => {
let mut settings = self.settings.lock().unwrap();
let timeout = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing timeout from {} to {}",
settings.timeout,
timeout,
);
settings.timeout = timeout;
}
"max-queue-length" => {
let mut settings = self.settings.lock().unwrap();
let max_queue_length = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing max-queue-length from {} to {}",
settings.max_queue_length,
max_queue_length,
);
settings.max_queue_length = max_queue_length;
}
"bandwidth" => {
let mut settings = self.settings.lock().unwrap();
let bandwidth = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing bandwidth from {} to {}",
settings.bandwidth,
bandwidth,
);
settings.bandwidth = bandwidth;
}
"color-format" => {
let mut settings = self.settings.lock().unwrap();
let color_format = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing color format from {:?} to {:?}",
settings.color_format,
color_format,
);
settings.color_format = color_format;
}
"timestamp-mode" => {
let mut settings = self.settings.lock().unwrap();
let timestamp_mode = value.get().unwrap();
gst_debug!(
CAT,
obj: obj,
"Changing timestamp mode from {:?} to {:?}",
settings.timestamp_mode,
timestamp_mode
);
if settings.timestamp_mode != timestamp_mode {
let _ = obj.post_message(gst::message::Latency::builder().src(obj).build());
}
settings.timestamp_mode = timestamp_mode;
}
_ => unimplemented!(),
}
}
fn property(&self, _obj: &Self::Type, _id: usize, pspec: &glib::ParamSpec) -> glib::Value {
match pspec.name() {
"ndi-name" => {
let settings = self.settings.lock().unwrap();
settings.ndi_name.to_value()
}
"url-address" => {
let settings = self.settings.lock().unwrap();
settings.url_address.to_value()
}
"receiver-ndi-name" => {
let settings = self.settings.lock().unwrap();
settings.receiver_ndi_name.to_value()
}
"connect-timeout" => {
let settings = self.settings.lock().unwrap();
settings.connect_timeout.to_value()
}
"timeout" => {
let settings = self.settings.lock().unwrap();
settings.timeout.to_value()
}
"max-queue-length" => {
let settings = self.settings.lock().unwrap();
settings.max_queue_length.to_value()
}
"bandwidth" => {
let settings = self.settings.lock().unwrap();
settings.bandwidth.to_value()
}
"color-format" => {
let settings = self.settings.lock().unwrap();
settings.color_format.to_value()
}
"timestamp-mode" => {
let settings = self.settings.lock().unwrap();
settings.timestamp_mode.to_value()
}
_ => unimplemented!(),
}
}
}
impl GstObjectImpl for NdiSrc {}
impl ElementImpl for NdiSrc {
fn metadata() -> Option<&'static gst::subclass::ElementMetadata> {
static ELEMENT_METADATA: Lazy<gst::subclass::ElementMetadata> = Lazy::new(|| {
gst::subclass::ElementMetadata::new(
"NewTek NDI Source",
"Source/Audio/Video/Network",
"NewTek NDI source",
"Ruben Gonzalez <rubenrua@teltek.es>, Daniel Vilar <daniel.peiteado@teltek.es>, Sebastian Dröge <sebastian@centricular.com>",
)
});
Some(&*ELEMENT_METADATA)
}
fn pad_templates() -> &'static [gst::PadTemplate] {
static PAD_TEMPLATES: Lazy<Vec<gst::PadTemplate>> = Lazy::new(|| {
let src_pad_template = gst::PadTemplate::new(
"src",
gst::PadDirection::Src,
gst::PadPresence::Always,
&gst::Caps::builder("application/x-ndi").build(),
)
.unwrap();
vec![src_pad_template]
});
PAD_TEMPLATES.as_ref()
}
fn change_state(
&self,
element: &Self::Type,
transition: gst::StateChange,
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
match transition {
gst::StateChange::PausedToPlaying => {
if let Some(ref controller) = *self.receiver_controller.lock().unwrap() {
controller.set_playing(true);
}
}
gst::StateChange::PlayingToPaused => {
if let Some(ref controller) = *self.receiver_controller.lock().unwrap() {
controller.set_playing(false);
}
}
gst::StateChange::PausedToReady => {
if let Some(ref controller) = *self.receiver_controller.lock().unwrap() {
controller.shutdown();
}
}
_ => (),
}
self.parent_change_state(element, transition)
}
}
impl BaseSrcImpl for NdiSrc {
fn negotiate(&self, element: &Self::Type) -> Result<(), gst::LoggableError> {
element
.set_caps(&gst::Caps::builder("application/x-ndi").build())
.map_err(|_| gst::loggable_error!(CAT, "Failed to negotiate caps",))
}
fn unlock(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
gst_debug!(CAT, obj: element, "Unlocking",);
if let Some(ref controller) = *self.receiver_controller.lock().unwrap() {
controller.set_flushing(true);
}
Ok(())
}
fn unlock_stop(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
gst_debug!(CAT, obj: element, "Stop unlocking",);
if let Some(ref controller) = *self.receiver_controller.lock().unwrap() {
controller.set_flushing(false);
}
Ok(())
}
fn start(&self, element: &Self::Type) -> Result<(), gst::ErrorMessage> {
*self.state.lock().unwrap() = Default::default();
let settings = self.settings.lock().unwrap().clone();
if settings.ndi_name.is_none() && settings.url_address.is_none() {
return Err(gst::error_msg!(
gst::LibraryError::Settings,
["No NDI name or URL/address given"]
));
}
let receiver = Receiver::connect(
element.upcast_ref(),
settings.ndi_name.as_deref(),
settings.url_address.as_deref(),
&settings.receiver_ndi_name,
settings.connect_timeout,
settings.bandwidth,
settings.color_format.into(),
settings.timestamp_mode,
settings.timeout,
settings.max_queue_length as usize,
);
match receiver {
None => Err(gst::error_msg!(
gst::ResourceError::NotFound,
["Could not connect to this source"]
)),
Some(receiver) => {
*self.receiver_controller.lock().unwrap() =
Some(receiver.receiver_control_handle());
let mut state = self.state.lock().unwrap();
state.receiver = Some(receiver);
Ok(())
}
}
}
fn stop(&self, _element: &Self::Type) -> Result<(), gst::ErrorMessage> {
if let Some(ref controller) = self.receiver_controller.lock().unwrap().take() {
controller.shutdown();
}
*self.state.lock().unwrap() = State::default();
Ok(())
}
fn query(&self, element: &Self::Type, query: &mut gst::QueryRef) -> bool {
use gst::QueryView;
match query.view_mut() {
QueryView::Scheduling(ref mut q) => {
q.set(gst::SchedulingFlags::SEQUENTIAL, 1, -1, 0);
q.add_scheduling_modes(&[gst::PadMode::Push]);
true
}
QueryView::Latency(ref mut q) => {
let state = self.state.lock().unwrap();
let settings = self.settings.lock().unwrap();
if let Some(latency) = state.current_latency {
let min = if matches!(
settings.timestamp_mode,
TimestampMode::ReceiveTimeTimecode | TimestampMode::ReceiveTimeTimestamp
) {
latency
} else {
gst::ClockTime::ZERO
};
let max = settings.max_queue_length as u64 * latency;
gst_debug!(
CAT,
obj: element,
"Returning latency min {} max {}",
min,
max
);
q.set(true, min, max);
true
} else {
false
}
}
_ => BaseSrcImplExt::parent_query(self, element, query),
}
}
fn create(
&self,
element: &Self::Type,
_offset: u64,
_buffer: Option<&mut gst::BufferRef>,
_length: u32,
) -> Result<CreateSuccess, gst::FlowError> {
let recv = {
let mut state = self.state.lock().unwrap();
match state.receiver.take() {
Some(recv) => recv,
None => {
gst_error!(CAT, obj: element, "Have no receiver");
return Err(gst::FlowError::Error);
}
}
};
let res = recv.capture();
let mut state = self.state.lock().unwrap();
state.receiver = Some(recv);
match res {
ReceiverItem::Buffer(buffer) => {
let buffer = match buffer {
Buffer::Audio(mut buffer, info) => {
if state.audio_info.as_ref() != Some(&info) {
let caps = info.to_caps().map_err(|_| {
gst::element_error!(
element,
gst::ResourceError::Settings,
["Invalid audio info received: {:?}", info]
);
gst::FlowError::NotNegotiated
})?;
state.audio_info = Some(info);
state.audio_caps = Some(caps);
}
{
let buffer = buffer.get_mut().unwrap();
ndisrcmeta::NdiSrcMeta::add(
buffer,
ndisrcmeta::StreamType::Audio,
state.audio_caps.as_ref().unwrap(),
);
}
buffer
}
Buffer::Video(mut buffer, info) => {
let mut latency_changed = false;
if state.video_info.as_ref() != Some(&info) {
let caps = info.to_caps().map_err(|_| {
gst::element_error!(
element,
gst::ResourceError::Settings,
["Invalid audio info received: {:?}", info]
);
gst::FlowError::NotNegotiated
})?;
state.video_info = Some(info);
state.video_caps = Some(caps);
latency_changed = state.current_latency != buffer.duration();
state.current_latency = buffer.duration();
}
{
let buffer = buffer.get_mut().unwrap();
ndisrcmeta::NdiSrcMeta::add(
buffer,
ndisrcmeta::StreamType::Video,
state.video_caps.as_ref().unwrap(),
);
}
drop(state);
if latency_changed {
let _ = element.post_message(
gst::message::Latency::builder().src(element).build(),
);
}
buffer
}
};
Ok(CreateSuccess::NewBuffer(buffer))
}
ReceiverItem::Timeout => Err(gst::FlowError::Eos),
ReceiverItem::Flushing => Err(gst::FlowError::Flushing),
ReceiverItem::Error(err) => Err(err),
}
}
}

19
net/ndi/src/ndisrc/mod.rs Normal file
View file

@ -0,0 +1,19 @@
use glib::prelude::*;
mod imp;
glib::wrapper! {
pub struct NdiSrc(ObjectSubclass<imp::NdiSrc>) @extends gst_base::BaseSrc, gst::Element, gst::Object;
}
unsafe impl Send for NdiSrc {}
unsafe impl Sync for NdiSrc {}
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
gst::Element::register(
Some(plugin),
"ndisrc",
gst::Rank::None,
NdiSrc::static_type(),
)
}

312
net/ndi/src/ndisrcdemux/imp.rs Normal file
View file

@ -0,0 +1,312 @@
use gst::prelude::*;
use gst::subclass::prelude::*;
use gst::{gst_debug, gst_error, gst_log};
use std::sync::Mutex;
use once_cell::sync::Lazy;
use crate::ndisrcmeta;
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
gst::DebugCategory::new(
"ndisrcdemux",
gst::DebugColorFlags::empty(),
Some("NewTek NDI Source Demuxer"),
)
});
#[derive(Default)]
struct State {
combiner: gst_base::UniqueFlowCombiner,
video_pad: Option<gst::Pad>,
video_caps: Option<gst::Caps>,
audio_pad: Option<gst::Pad>,
audio_caps: Option<gst::Caps>,
}
pub struct NdiSrcDemux {
sinkpad: gst::Pad,
state: Mutex<State>,
}
#[glib::object_subclass]
impl ObjectSubclass for NdiSrcDemux {
const NAME: &'static str = "NdiSrcDemux";
type Type = super::NdiSrcDemux;
type ParentType = gst::Element;
fn with_class(klass: &Self::Class) -> Self {
let templ = klass.pad_template("sink").unwrap();
let sinkpad = gst::Pad::builder_with_template(&templ, Some("sink"))
.flags(gst::PadFlags::FIXED_CAPS)
.chain_function(|pad, parent, buffer| {
NdiSrcDemux::catch_panic_pad_function(
parent,
|| Err(gst::FlowError::Error),
|self_, element| self_.sink_chain(pad, element, buffer),
)
})
.event_function(|pad, parent, event| {
NdiSrcDemux::catch_panic_pad_function(
parent,
|| false,
|self_, element| self_.sink_event(pad, element, event),
)
})
.build();
Self {
sinkpad,
state: Mutex::new(State::default()),
}
}
}
impl ObjectImpl for NdiSrcDemux {
fn constructed(&self, obj: &Self::Type) {
self.parent_constructed(obj);
obj.add_pad(&self.sinkpad).unwrap();
}
}
impl GstObjectImpl for NdiSrcDemux {}
impl ElementImpl for NdiSrcDemux {
fn metadata() -> Option<&'static gst::subclass::ElementMetadata> {
static ELEMENT_METADATA: Lazy<gst::subclass::ElementMetadata> = Lazy::new(|| {
gst::subclass::ElementMetadata::new(
"NewTek NDI Source Demuxer",
"Demuxer/Audio/Video",
"NewTek NDI source demuxer",
"Sebastian Dröge <sebastian@centricular.com>",
)
});
Some(&*ELEMENT_METADATA)
}
fn pad_templates() -> &'static [gst::PadTemplate] {
static PAD_TEMPLATES: Lazy<Vec<gst::PadTemplate>> = Lazy::new(|| {
let sink_pad_template = gst::PadTemplate::new(
"sink",
gst::PadDirection::Sink,
gst::PadPresence::Always,
&gst::Caps::builder("application/x-ndi").build(),
)
.unwrap();
let audio_src_pad_template = gst::PadTemplate::new(
"audio",
gst::PadDirection::Src,
gst::PadPresence::Sometimes,
&gst::Caps::builder("audio/x-raw").build(),
)
.unwrap();
let video_src_pad_template = gst::PadTemplate::new(
"video",
gst::PadDirection::Src,
gst::PadPresence::Sometimes,
&gst::Caps::builder("video/x-raw").build(),
)
.unwrap();
vec![
sink_pad_template,
audio_src_pad_template,
video_src_pad_template,
]
});
PAD_TEMPLATES.as_ref()
}
fn change_state(
&self,
element: &Self::Type,
transition: gst::StateChange,
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
let res = self.parent_change_state(element, transition)?;
match transition {
gst::StateChange::PausedToReady => {
let mut state = self.state.lock().unwrap();
for pad in [state.audio_pad.take(), state.video_pad.take()]
.iter()
.flatten()
{
element.remove_pad(pad).unwrap();
}
*state = State::default();
}
_ => (),
}
Ok(res)
}
}
impl NdiSrcDemux {
fn sink_chain(
&self,
pad: &gst::Pad,
element: &super::NdiSrcDemux,
mut buffer: gst::Buffer,
) -> Result<gst::FlowSuccess, gst::FlowError> {
gst_log!(CAT, obj: pad, "Handling buffer {:?}", buffer);
let meta = buffer.make_mut().meta_mut::<ndisrcmeta::NdiSrcMeta>().ok_or_else(|| {
gst_error!(CAT, obj: element, "Buffer without NDI source meta");
gst::FlowError::Error
})?;
let mut events = vec![];
let srcpad;
let mut add_pad = false;
let mut state = self.state.lock().unwrap();
let caps = meta.caps();
match meta.stream_type() {
ndisrcmeta::StreamType::Audio => {
if let Some(ref pad) = state.audio_pad {
srcpad = pad.clone();
} else {
gst_debug!(CAT, obj: element, "Adding audio pad with caps {}", caps);
let klass = element.element_class();
let templ = klass.pad_template("audio").unwrap();
let pad = gst::Pad::builder_with_template(&templ, Some("audio"))
.flags(gst::PadFlags::FIXED_CAPS)
.build();
let mut caps_event = Some(gst::event::Caps::new(&caps));
self.sinkpad.sticky_events_foreach(|ev| {
if ev.type_() < gst::EventType::Caps {
events.push(ev.clone());
} else {
if let Some(ev) = caps_event.take() {
events.push(ev);
}
if ev.type_() != gst::EventType::Caps {
events.push(ev.clone());
}
}
std::ops::ControlFlow::Continue(gst::EventForeachAction::Keep)
});
state.audio_caps = Some(caps.clone());
state.audio_pad = Some(pad.clone());
let _ = pad.set_active(true);
for ev in events.drain(..) {
let _ = pad.store_sticky_event(&ev);
}
state.combiner.add_pad(&pad);
add_pad = true;
srcpad = pad;
}
if state.audio_caps.as_ref() != Some(&caps) {
gst_debug!(CAT, obj: element, "Audio caps changed to {}", caps);
events.push(gst::event::Caps::new(&caps));
state.audio_caps = Some(caps);
}
}
ndisrcmeta::StreamType::Video => {
if let Some(ref pad) = state.video_pad {
srcpad = pad.clone();
} else {
gst_debug!(CAT, obj: element, "Adding video pad with caps {}", caps);
let klass = element.element_class();
let templ = klass.pad_template("video").unwrap();
let pad = gst::Pad::builder_with_template(&templ, Some("video"))
.flags(gst::PadFlags::FIXED_CAPS)
.build();
let mut caps_event = Some(gst::event::Caps::new(&caps));
self.sinkpad.sticky_events_foreach(|ev| {
if ev.type_() < gst::EventType::Caps {
events.push(ev.clone());
} else {
if let Some(ev) = caps_event.take() {
events.push(ev);
}
if ev.type_() != gst::EventType::Caps {
events.push(ev.clone());
}
}
std::ops::ControlFlow::Continue(gst::EventForeachAction::Keep)
});
state.video_caps = Some(caps.clone());
state.video_pad = Some(pad.clone());
let _ = pad.set_active(true);
for ev in events.drain(..) {
let _ = pad.store_sticky_event(&ev);
}
state.combiner.add_pad(&pad);
add_pad = true;
srcpad = pad;
}
if state.video_caps.as_ref() != Some(&caps) {
gst_debug!(CAT, obj: element, "Video caps changed to {}", caps);
events.push(gst::event::Caps::new(&caps));
state.video_caps = Some(caps);
}
}
}
drop(state);
meta.remove().unwrap();
if add_pad {
element.add_pad(&srcpad).unwrap();
}
for ev in events {
srcpad.push_event(ev);
}
let res = srcpad.push(buffer);
let mut state = self.state.lock().unwrap();
state.combiner.update_pad_flow(&srcpad, res)
}
fn sink_event(&self,
pad: &gst::Pad,
element: &super::NdiSrcDemux,
event: gst::Event
) -> bool {
use gst::EventView;
gst_log!(CAT, obj: pad, "Handling event {:?}", event);
if let EventView::Eos(_) = event.view() {
if element.num_src_pads() == 0 {
// error out on EOS if no src pad are available
gst::element_error!(
element,
gst::StreamError::Demux,
["EOS without available srcpad(s)"]
);
}
}
pad.event_default(Some(element), event)
}
}

19
net/ndi/src/ndisrcdemux/mod.rs Normal file
View file

@ -0,0 +1,19 @@
use glib::prelude::*;
mod imp;
glib::wrapper! {
pub struct NdiSrcDemux(ObjectSubclass<imp::NdiSrcDemux>) @extends gst::Element, gst::Object;
}
unsafe impl Send for NdiSrcDemux {}
unsafe impl Sync for NdiSrcDemux {}
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
gst::Element::register(
Some(plugin),
"ndisrcdemux",
gst::Rank::Primary,
NdiSrcDemux::static_type(),
)
}

158
net/ndi/src/ndisrcmeta.rs Normal file
View file

@ -0,0 +1,158 @@
use gst::prelude::*;
use std::fmt;
use std::mem;
#[repr(transparent)]
pub struct NdiSrcMeta(imp::NdiSrcMeta);
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub enum StreamType {
Audio,
Video,
}
unsafe impl Send for NdiSrcMeta {}
unsafe impl Sync for NdiSrcMeta {}
impl NdiSrcMeta {
pub fn add<'a>(
buffer: &'a mut gst::BufferRef,
stream_type: StreamType,
caps: &gst::Caps,
) -> gst::MetaRefMut<'a, Self, gst::meta::Standalone> {
unsafe {
// Manually dropping because gst_buffer_add_meta() takes ownership of the
// content of the struct
let mut params = mem::ManuallyDrop::new(imp::NdiSrcMetaParams {
caps: caps.clone(),
stream_type,
});
let meta = gst::ffi::gst_buffer_add_meta(
buffer.as_mut_ptr(),
imp::ndi_src_meta_get_info(),
&mut *params as *mut imp::NdiSrcMetaParams as glib::ffi::gpointer,
) as *mut imp::NdiSrcMeta;
Self::from_mut_ptr(buffer, meta)
}
}
pub fn stream_type(&self) -> StreamType {
self.0.stream_type
}
pub fn caps(&self) -> gst::Caps {
self.0.caps.clone()
}
}
unsafe impl MetaAPI for NdiSrcMeta {
type GstType = imp::NdiSrcMeta;
fn meta_api() -> glib::Type {
imp::ndi_src_meta_api_get_type()
}
}
impl fmt::Debug for NdiSrcMeta {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("NdiSrcMeta")
.field("stream_type", &self.stream_type())
.field("caps", &self.caps())
.finish()
}
}
mod imp {
use super::StreamType;
use glib::translate::*;
use once_cell::sync::Lazy;
use std::mem;
use std::ptr;
pub(super) struct NdiSrcMetaParams {
pub caps: gst::Caps,
pub stream_type: StreamType,
}
#[repr(C)]
pub struct NdiSrcMeta {
parent: gst::ffi::GstMeta,
pub(super) caps: gst::Caps,
pub(super) stream_type: StreamType,
}
pub(super) fn ndi_src_meta_api_get_type() -> glib::Type {
static TYPE: Lazy<glib::Type> = Lazy::new(|| unsafe {
let t = from_glib(gst::ffi::gst_meta_api_type_register(
b"GstNdiSrcMetaAPI\0".as_ptr() as *const _,
[ptr::null::<std::os::raw::c_char>()].as_ptr() as *mut *const _,
));
assert_ne!(t, glib::Type::INVALID);
t
});
*TYPE
}
unsafe extern "C" fn ndi_src_meta_init(
meta: *mut gst::ffi::GstMeta,
params: glib::ffi::gpointer,
_buffer: *mut gst::ffi::GstBuffer,
) -> glib::ffi::gboolean {
assert!(!params.is_null());
let meta = &mut *(meta as *mut NdiSrcMeta);
let params = ptr::read(params as *const NdiSrcMetaParams);
ptr::write(&mut meta.stream_type, params.stream_type);
ptr::write(&mut meta.caps, params.caps);
true.into_glib()
}
unsafe extern "C" fn ndi_src_meta_free(
meta: *mut gst::ffi::GstMeta,
_buffer: *mut gst::ffi::GstBuffer,
) {
let meta = &mut *(meta as *mut NdiSrcMeta);
ptr::drop_in_place(&mut meta.stream_type);
ptr::drop_in_place(&mut meta.caps);
}
unsafe extern "C" fn ndi_src_meta_transform(
_dest: *mut gst::ffi::GstBuffer,
_meta: *mut gst::ffi::GstMeta,
_buffer: *mut gst::ffi::GstBuffer,
_type_: glib::ffi::GQuark,
_data: glib::ffi::gpointer,
) -> glib::ffi::gboolean {
false.into_glib()
}
pub(super) fn ndi_src_meta_get_info() -> *const gst::ffi::GstMetaInfo {
struct MetaInfo(ptr::NonNull<gst::ffi::GstMetaInfo>);
unsafe impl Send for MetaInfo {}
unsafe impl Sync for MetaInfo {}
static META_INFO: Lazy<MetaInfo> = Lazy::new(|| unsafe {
MetaInfo(
ptr::NonNull::new(gst::ffi::gst_meta_register(
ndi_src_meta_api_get_type().into_glib(),
b"GstNdiSrcMeta\0".as_ptr() as *const _,
mem::size_of::<NdiSrcMeta>(),
Some(ndi_src_meta_init),
Some(ndi_src_meta_free),
Some(ndi_src_meta_transform),
) as *mut gst::ffi::GstMetaInfo)
.expect("Failed to register meta API"),
)
});
META_INFO.0.as_ptr()
}
}

326
net/ndi/src/ndisys.rs Normal file
View file

@ -0,0 +1,326 @@
#![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
#[cfg_attr(
all(target_arch = "x86_64", target_os = "windows"),
link(name = "Processing.NDI.Lib.x64")
)]
#[cfg_attr(
all(target_arch = "x86", target_os = "windows"),
link(name = "Processing.NDI.Lib.x86")
)]
#[cfg_attr(
not(any(target_os = "windows", target_os = "macos")),
link(name = "ndi")
)]
extern "C" {
pub fn NDIlib_initialize() -> bool;
pub fn NDIlib_destroy();
pub fn NDIlib_find_create_v2(
p_create_settings: *const NDIlib_find_create_t,
) -> NDIlib_find_instance_t;
pub fn NDIlib_find_destroy(p_instance: NDIlib_find_instance_t);
pub fn NDIlib_find_wait_for_sources(
p_instance: NDIlib_find_instance_t,
timeout_in_ms: u32,
) -> bool;
pub fn NDIlib_find_get_current_sources(
p_instance: NDIlib_find_instance_t,
p_no_sources: *mut u32,
) -> *const NDIlib_source_t;
pub fn NDIlib_recv_create_v3(
p_create_settings: *const NDIlib_recv_create_v3_t,
) -> NDIlib_recv_instance_t;
pub fn NDIlib_recv_destroy(p_instance: NDIlib_recv_instance_t);
pub fn NDIlib_recv_set_tally(
p_instance: NDIlib_recv_instance_t,
p_tally: *const NDIlib_tally_t,
) -> bool;
pub fn NDIlib_recv_send_metadata(
p_instance: NDIlib_recv_instance_t,
p_metadata: *const NDIlib_metadata_frame_t,
) -> bool;
pub fn NDIlib_recv_capture_v3(
p_instance: NDIlib_recv_instance_t,
p_video_data: *mut NDIlib_video_frame_v2_t,
p_audio_data: *mut NDIlib_audio_frame_v3_t,
p_metadata: *mut NDIlib_metadata_frame_t,
timeout_in_ms: u32,
) -> NDIlib_frame_type_e;
pub fn NDIlib_recv_free_video_v2(
p_instance: NDIlib_recv_instance_t,
p_video_data: *mut NDIlib_video_frame_v2_t,
);
pub fn NDIlib_recv_free_audio_v3(
p_instance: NDIlib_recv_instance_t,
p_audio_data: *mut NDIlib_audio_frame_v3_t,
);
pub fn NDIlib_recv_free_metadata(
p_instance: NDIlib_recv_instance_t,
p_metadata: *mut NDIlib_metadata_frame_t,
);
pub fn NDIlib_recv_get_queue(
p_instance: NDIlib_recv_instance_t,
p_total: *mut NDIlib_recv_queue_t,
);
pub fn NDIlib_send_create(
p_create_settings: *const NDIlib_send_create_t,
) -> NDIlib_send_instance_t;
pub fn NDIlib_send_destroy(p_instance: NDIlib_send_instance_t);
pub fn NDIlib_send_send_video_v2(
p_instance: NDIlib_send_instance_t,
p_video_data: *const NDIlib_video_frame_v2_t,
);
pub fn NDIlib_send_send_audio_v3(
p_instance: NDIlib_send_instance_t,
p_audio_data: *const NDIlib_audio_frame_v3_t,
);
}
pub type NDIlib_find_instance_t = *mut ::std::os::raw::c_void;
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_find_create_t {
pub show_local_sources: bool,
pub p_groups: *const ::std::os::raw::c_char,
pub p_extra_ips: *const ::std::os::raw::c_char,
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_source_t {
pub p_ndi_name: *const ::std::os::raw::c_char,
pub p_url_address: *const ::std::os::raw::c_char,
}
#[repr(i32)]
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub enum NDIlib_frame_type_e {
NDIlib_frame_type_none = 0,
NDIlib_frame_type_video = 1,
NDIlib_frame_type_audio = 2,
NDIlib_frame_type_metadata = 3,
NDIlib_frame_type_error = 4,
NDIlib_frame_type_status_change = 100,
}
pub type NDIlib_recv_bandwidth_e = i32;
pub const NDIlib_recv_bandwidth_metadata_only: NDIlib_recv_bandwidth_e = -10;
pub const NDIlib_recv_bandwidth_audio_only: NDIlib_recv_bandwidth_e = 10;
pub const NDIlib_recv_bandwidth_lowest: NDIlib_recv_bandwidth_e = 0;
pub const NDIlib_recv_bandwidth_highest: NDIlib_recv_bandwidth_e = 100;
pub type NDIlib_recv_color_format_e = u32;
pub const NDIlib_recv_color_format_BGRX_BGRA: NDIlib_recv_color_format_e = 0;
pub const NDIlib_recv_color_format_UYVY_BGRA: NDIlib_recv_color_format_e = 1;
pub const NDIlib_recv_color_format_RGBX_RGBA: NDIlib_recv_color_format_e = 2;
pub const NDIlib_recv_color_format_UYVY_RGBA: NDIlib_recv_color_format_e = 3;
pub const NDIlib_recv_color_format_fastest: NDIlib_recv_color_format_e = 100;
pub const NDIlib_recv_color_format_best: NDIlib_recv_color_format_e = 101;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed: NDIlib_recv_color_format_e = 300;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v2: NDIlib_recv_color_format_e = 301;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v3: NDIlib_recv_color_format_e = 302;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v3_with_audio: NDIlib_recv_color_format_e = 304;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v4: NDIlib_recv_color_format_e = 303;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v4_with_audio: NDIlib_recv_color_format_e = 305;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v5: NDIlib_recv_color_format_e = 307;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_recv_color_format_ex_compressed_v5_with_audio: NDIlib_recv_color_format_e = 308;
const fn make_fourcc(fourcc: &[u8; 4]) -> u32 {
((fourcc[0] as u32) << 0)
| ((fourcc[1] as u32) << 8)
| ((fourcc[2] as u32) << 16)
| ((fourcc[3] as u32) << 24)
}
pub type NDIlib_FourCC_video_type_e = u32;
pub const NDIlib_FourCC_video_type_UYVY: NDIlib_FourCC_video_type_e = make_fourcc(b"UYVY");
pub const NDIlib_FourCC_video_type_UYVA: NDIlib_FourCC_video_type_e = make_fourcc(b"UYVA");
pub const NDIlib_FourCC_video_type_P216: NDIlib_FourCC_video_type_e = make_fourcc(b"P216");
pub const NDIlib_FourCC_video_type_PA16: NDIlib_FourCC_video_type_e = make_fourcc(b"PA16");
pub const NDIlib_FourCC_video_type_YV12: NDIlib_FourCC_video_type_e = make_fourcc(b"YV12");
pub const NDIlib_FourCC_video_type_I420: NDIlib_FourCC_video_type_e = make_fourcc(b"I420");
pub const NDIlib_FourCC_video_type_NV12: NDIlib_FourCC_video_type_e = make_fourcc(b"NV12");
pub const NDIlib_FourCC_video_type_BGRA: NDIlib_FourCC_video_type_e = make_fourcc(b"BGRA");
pub const NDIlib_FourCC_video_type_BGRX: NDIlib_FourCC_video_type_e = make_fourcc(b"BGRX");
pub const NDIlib_FourCC_video_type_RGBA: NDIlib_FourCC_video_type_e = make_fourcc(b"RGBA");
pub const NDIlib_FourCC_video_type_RGBX: NDIlib_FourCC_video_type_e = make_fourcc(b"RGBX");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_SHQ0_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"SHQ0");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_SHQ2_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"SHQ2");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_SHQ7_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"SHQ7");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_SHQ0_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"shq0");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_SHQ2_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"shq2");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_SHQ7_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"shq7");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_H264_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"H264");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_H264_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"h264");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_HEVC_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"HEVC");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_HEVC_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"hevc");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_H264_alpha_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"A264");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_H264_alpha_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"a264");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_HEVC_alpha_highest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"AEVC");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_video_type_ex_HEVC_alpha_lowest_bandwidth: NDIlib_FourCC_video_type_e =
make_fourcc(b"aevc");
pub type NDIlib_FourCC_audio_type_e = u32;
pub const NDIlib_FourCC_audio_type_FLTp: NDIlib_FourCC_video_type_e = make_fourcc(b"FLTp");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_audio_type_AAC: NDIlib_FourCC_audio_type_e = 0x000000ff;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_FourCC_audio_type_Opus: NDIlib_FourCC_audio_type_e = make_fourcc(b"Opus");
#[cfg(feature = "advanced-sdk")]
pub type NDIlib_compressed_FourCC_type_e = u32;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_compressed_FourCC_type_H264: NDIlib_compressed_FourCC_type_e =
make_fourcc(b"H264");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_compressed_FourCC_type_HEVC: NDIlib_compressed_FourCC_type_e =
make_fourcc(b"HEVC");
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_compressed_FourCC_type_AAC: NDIlib_compressed_FourCC_type_e = 0x000000ff;
#[repr(u32)]
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub enum NDIlib_frame_format_type_e {
NDIlib_frame_format_type_progressive = 1,
NDIlib_frame_format_type_interleaved = 0,
NDIlib_frame_format_type_field_0 = 2,
NDIlib_frame_format_type_field_1 = 3,
}
pub const NDIlib_send_timecode_synthesize: i64 = ::std::i64::MAX;
pub const NDIlib_recv_timestamp_undefined: i64 = ::std::i64::MAX;
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_recv_create_v3_t {
pub source_to_connect_to: NDIlib_source_t,
pub color_format: NDIlib_recv_color_format_e,
pub bandwidth: NDIlib_recv_bandwidth_e,
pub allow_video_fields: bool,
pub p_ndi_recv_name: *const ::std::os::raw::c_char,
}
pub type NDIlib_recv_instance_t = *mut ::std::os::raw::c_void;
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_send_create_t {
pub p_ndi_name: *const ::std::os::raw::c_char,
pub p_groups: *const ::std::os::raw::c_char,
pub clock_video: bool,
pub clock_audio: bool,
}
pub type NDIlib_send_instance_t = *mut ::std::os::raw::c_void;
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_tally_t {
pub on_program: bool,
pub on_preview: bool,
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_recv_queue_t {
pub video_frames: i32,
pub audio_frames: i32,
pub metadata_frames: i32,
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_metadata_frame_t {
pub length: ::std::os::raw::c_int,
pub timecode: i64,
pub p_data: *const ::std::os::raw::c_char,
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_video_frame_v2_t {
pub xres: ::std::os::raw::c_int,
pub yres: ::std::os::raw::c_int,
pub FourCC: NDIlib_FourCC_video_type_e,
pub frame_rate_N: ::std::os::raw::c_int,
pub frame_rate_D: ::std::os::raw::c_int,
pub picture_aspect_ratio: ::std::os::raw::c_float,
pub frame_format_type: NDIlib_frame_format_type_e,
pub timecode: i64,
pub p_data: *const ::std::os::raw::c_char,
pub line_stride_or_data_size_in_bytes: ::std::os::raw::c_int,
pub p_metadata: *const ::std::os::raw::c_char,
pub timestamp: i64,
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_audio_frame_v3_t {
pub sample_rate: ::std::os::raw::c_int,
pub no_channels: ::std::os::raw::c_int,
pub no_samples: ::std::os::raw::c_int,
pub timecode: i64,
pub FourCC: NDIlib_FourCC_audio_type_e,
pub p_data: *const ::std::os::raw::c_float,
pub channel_stride_or_data_size_in_bytes: ::std::os::raw::c_int,
pub p_metadata: *const ::std::os::raw::c_char,
pub timestamp: i64,
}
#[cfg(feature = "advanced-sdk")]
#[repr(packed)]
#[derive(Debug, Copy, Clone)]
pub struct NDIlib_compressed_packet_t {
pub version: u32,
pub fourcc: NDIlib_compressed_FourCC_type_e,
pub pts: i64,
pub dts: i64,
pub reserved: u64,
pub flags: u32,
pub data_size: u32,
pub extra_data_size: u32,
}
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_compressed_packet_flags_keyframe: u32 = 1;
#[cfg(feature = "advanced-sdk")]
pub const NDIlib_compressed_packet_version_0: u32 = 44;

1618
net/ndi/src/receiver.rs Normal file
View file

File diff suppressed because it is too large Load diff