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Refactor logic to use multiple streams in the same pipeline

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Now it's possible to connect to N streams in the same pipeline. Each new connection will create a new NDI receiver except if it's a empty slot in the receiver.

Each receiver has two slots one to connect to audio and other to connect to video to the same stream.
This commit is contained in:
Daniel Vilar 2018-08-20 09:25:15 +02:00
parent ba45931830
commit 07a8b8a274
5 changed files with 113 additions and 75 deletions
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3
gst-plugin-ndi/Cargo.toml
View file

@ -1,7 +1,7 @@
[package]
name = "gst-plugin-ndi"
version = "0.1.0"
authors = ["Ruben Gonzalez <rubenrua@teltek.es>"]
authors = ["Ruben Gonzalez <rubenrua@teltek.es>", "Daniel Vilar <daniel.peiteado@teltek.es>"]
repository = "https://gitlab.teltek.es/rubenrua/ndi-rs.git"
license = "unknow" # TODO MIT/Apache-2.0
@ -12,6 +12,7 @@ gstreamer = "0.11"
gstreamer-base = "0.11"
gstreamer-video = "0.11"
gstreamer-audio = "0.11"
lazy_static = "1.1.0"
byte-slice-cast = "0.1" # TODO delete
num-traits = "0.2" # TODO delete

115
gst-plugin-ndi/src/lib.rs
View file

@ -56,46 +56,64 @@ static mut ndi_struct: Ndi = Ndi{
start_pts: 0,
};
struct ndi_receiver_info{
stream_name: String,
ip: String,
video: bool,
audio: bool,
ndi_instance: NdiInstance,
id: i8,
}
lazy_static! {
static ref hashmap_receivers: Mutex<HashMap<String, NdiInstance>> = {
static ref hashmap_receivers: Mutex<HashMap<i8, ndi_receiver_info>> = {
let mut m = HashMap::new();
Mutex::new(m)
};
}
fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream_name: String) -> bool{
static mut id_receiver: i8 = 0;
fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream_name: String) -> i8{
unsafe {
gst_debug!(cat, obj: element, "Starting NDI connection...");
let mut map = hashmap_receivers.lock().unwrap();
//FIXME It's possible to connect more than one source if an audiosrc is active
let mut receivers = hashmap_receivers.lock().unwrap();
let mut audio = false;
if (element.get_name().contains("ndiaudiosrc")){
let mut video = false;
id_receiver += 1;
//FIXME Search for another way to know if the source is an audio or a video source
if (element.get_name().contains("audiosrc")){
audio = true;
}
else
{
video = true;
}
if (map.contains_key(&stream_name) || map.contains_key(&ip)){
if (map.contains_key(&stream_name)){
let recv = map.get(&stream_name).unwrap();
audio = recv.audio;
for val in receivers.values_mut(){
if (val.ip == ip || val.stream_name == stream_name){
if ((val.audio && val.video) || (val.audio && audio) || (val.video && video)){
break;
}
else {
if (video){
val.video = video;
}
else{
val.audio = audio;
}
return val.id;
}
}
else if (map.contains_key(&ip)){
let recv = map.get(&ip).unwrap();
audio = recv.audio;
}
if (audio){
println!("We already have an source, but we need to add an audio source to the pipeline. So we need to reutilize the source...");
return true;
}
else{
println!("Already connected to {}{}", ip, stream_name);
return false;
}
}
}
if !NDIlib_initialize() {
gst_element_error!(element, gst::CoreError::Negotiation, ["Cannot run NDI: NDIlib_initialize error"]);
return false;
// return false;
return 0;
}
let mut source: NDIlib_source_t = NDIlib_source_t{p_ndi_name: ptr::null(),
@ -107,7 +125,8 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
let ip_ptr = CString::new(ip.clone()).unwrap();
if pNDI_find.is_null() {
gst_element_error!(element, gst::CoreError::Negotiation, ["Cannot run NDI: NDIlib_find_create_v2 error"]);
return false;
// return false;
return 0;
}
let mut total_sources: u32 = 0;
@ -120,7 +139,8 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
// We need at least one source
if p_sources.is_null() {
gst_element_error!(element, gst::CoreError::Negotiation, ["Error getting NDIlib_find_get_current_sources"]);
return false;
// return false;
return 0;
}
let mut no_source: isize = -1;
@ -133,7 +153,8 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
}
if no_source == -1 {
gst_element_error!(element, gst::CoreError::Negotiation, ["Stream name not found"]);
return false;
// return false;
return 0;
}
gst_debug!(cat, obj: element, "Total sources in network {}: Connecting to NDI source with name '{}' and address '{}'", total_sources,
@ -163,7 +184,8 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
if pNDI_recv.is_null() {
//println!("Cannot run NDI: NDIlib_recv_create_v3 error.");
gst_element_error!(element, gst::CoreError::Negotiation, ["Cannot run NDI: NDIlib_recv_create_v3 error"]);
return false;
// return false;
return 0;
}
// Destroy the NDI finder. We needed to have access to the pointers to p_sources[0]
@ -173,7 +195,7 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
let tally_state: NDIlib_tally_t = Default::default();
NDIlib_recv_set_tally(pNDI_recv, &tally_state);
// Enable Hardwqre Decompression support if this support has it. Please read the caveats in the documentation
// Enable Hardware Decompression support if this support has it. Please read the caveats in the documentation
// regarding this. There are times in which it might reduce the performance although on small stream numbers
// it almost always yields the same or better performance.
let data = CString::new("<ndi_hwaccel enabled=\"true\"/>").unwrap();
@ -185,8 +207,7 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
NDIlib_recv_send_metadata(pNDI_recv, &enable_hw_accel);
map.insert(source_name.clone(), NdiInstance{recv: pNDI_recv, audio: audio});
map.insert(source_ip.clone(), NdiInstance{recv: pNDI_recv, audio: audio});
receivers.insert(id_receiver, ndi_receiver_info{stream_name: source_name.clone(), ip: source_ip.clone(), video:video, audio: audio, ndi_instance: NdiInstance{recv: pNDI_recv}, id: id_receiver});
// let start = SystemTime::now();
// let since_the_epoch = start.duration_since(UNIX_EPOCH)
@ -195,26 +216,34 @@ fn connect_ndi(cat: gst::DebugCategory , element: &BaseSrc, ip: String, stream
// ndi_struct.start_pts = Some(since_the_epoch.as_secs() * 1000000000 +
// since_the_epoch.subsec_nanos() as u64);
gst_debug!(cat, obj: element, "Started NDI connection");
return true;
return id_receiver;
}
}
fn stop_ndi(cat: gst::DebugCategory , element: &BaseSrc) -> bool{
fn stop_ndi(cat: gst::DebugCategory , element: &BaseSrc, id: i8) -> bool{
gst_debug!(cat, obj: element, "Closing NDI connection...");
unsafe{
let recv = match ndi_struct.recv{
None => {
//TODO Update gst_element_error with one more descriptive
//println!("pNDI_recv no encontrado");
//gst_element_error!(element, gst::CoreError::Negotiation, ["No encontramos ndi recv"]);
let mut receivers = hashmap_receivers.lock().unwrap();
{
let val = receivers.get_mut(&id).unwrap();
if val.video && val.audio{
if (element.get_name().contains("audiosrc")){
val.audio = false;
}
else{
val.video = false;
}
return true;
}
Some(ref recv) => recv.clone(),
};
let pNDI_recv = recv.recv;
NDIlib_recv_destroy(pNDI_recv);
ndi_struct.recv = None;
NDIlib_destroy();
let recv = &val.ndi_instance;
let pNDI_recv = recv.recv;
NDIlib_recv_destroy(pNDI_recv);
// ndi_struct.recv = None;
NDIlib_destroy();
}
receivers.remove(&id);
gst_debug!(cat, obj: element, "Closed NDI connection");
return true;
}

33
gst-plugin-ndi/src/ndiaudiosrc.rs
View file

@ -28,6 +28,7 @@ use hashmap_receivers;
struct Settings {
stream_name: String,
ip: String,
id_receiver: i8,
}
impl Default for Settings {
@ -35,6 +36,7 @@ impl Default for Settings {
Settings {
stream_name: String::from("Fixed ndi stream name"),
ip: String::from(""),
id_receiver: 0,
}
}
}
@ -260,16 +262,23 @@ impl NdiAudioSrc {
// Reset state
*self.state.lock().unwrap() = Default::default();
let settings = self.settings.lock().unwrap();
return connect_ndi(self.cat, element, settings.ip.clone(), settings.stream_name.clone());
let mut settings = self.settings.lock().unwrap();
settings.id_receiver = connect_ndi(self.cat, element, settings.ip.clone(), settings.stream_name.clone());
if settings.id_receiver == 0{
return false;
}
else{
return true;
}
}
// Called when shutting down the element so we can release all stream-related state
fn stop(&self, element: &BaseSrc) -> bool {
// Reset state
*self.state.lock().unwrap() = Default::default();
stop_ndi(self.cat, element);
let settings = self.settings.lock().unwrap();
stop_ndi(self.cat, element, settings.id_receiver.clone());
// Commented because when adding ndi destroy stopped in this line
//*self.state.lock().unwrap() = Default::default();
true
@ -320,16 +329,12 @@ impl NdiAudioSrc {
fn fixate(&self, element: &BaseSrc, caps: gst::Caps) -> gst::Caps {
//We need to set the correct caps resolution and framerate
unsafe{
let map = hashmap_receivers.lock().unwrap();
let receivers = hashmap_receivers.lock().unwrap();
let settings = self.settings.lock().unwrap();
let mut id = &settings.stream_name;
if (&settings.ip != ""){
id = &settings.ip;
}
let recv = map.get(id).unwrap();
let recv = &receivers.get(&settings.id_receiver).unwrap().ndi_instance;
let pNDI_recv = recv.recv;
let mut timestamp_data = self.timestamp_data.lock().unwrap();
let audio_frame: NDIlib_audio_frame_v2_t = Default::default();
@ -380,13 +385,15 @@ impl NdiAudioSrc {
Some(ref info) => info.clone(),
};
unsafe{
let map = hashmap_receivers.lock().unwrap();
let receivers = hashmap_receivers.lock().unwrap();
let mut id = &_settings.stream_name;
if (&_settings.ip != ""){
id = &_settings.ip;
}
let recv = map.get(id).unwrap();
let recv = &receivers.get(&_settings.id_receiver).unwrap().ndi_instance;
let pNDI_recv = recv.recv;

2
gst-plugin-ndi/src/ndilib.rs
View file

@ -152,7 +152,7 @@ pub type NDIlib_recv_instance_t = *mut ::std::os::raw::c_void;
//Rust wrapper around *mut ::std::os::raw::c_void
pub struct NdiInstance {
pub recv: NDIlib_recv_instance_t,
pub audio: bool,
// pub audio: bool,
}
unsafe impl ::std::marker::Send for NdiInstance {}

35
gst-plugin-ndi/src/ndivideosrc.rs
View file

@ -29,6 +29,7 @@ use hashmap_receivers;
struct Settings {
stream_name: String,
ip: String,
id_receiver: i8,
}
impl Default for Settings {
@ -36,6 +37,7 @@ impl Default for Settings {
Settings {
stream_name: String::from("Fixed ndi stream name"),
ip: String::from(""),
id_receiver: 0,
}
}
}
@ -266,15 +268,23 @@ impl NdiVideoSrc {
// Reset state
*self.state.lock().unwrap() = Default::default();
let settings = self.settings.lock().unwrap();
return connect_ndi(self.cat, element, settings.ip.clone(), settings.stream_name.clone());
let mut settings = self.settings.lock().unwrap();
settings.id_receiver = connect_ndi(self.cat, element, settings.ip.clone(), settings.stream_name.clone());
if settings.id_receiver == 0{
return false;
}
else{
return true;
}
}
// Called when shutting down the element so we can release all stream-related state
fn stop(&self, element: &BaseSrc) -> bool {
// Reset state
*self.state.lock().unwrap() = Default::default();
stop_ndi(self.cat, element);
let settings = self.settings.lock().unwrap();
stop_ndi(self.cat, element, settings.id_receiver.clone());
// Commented because when adding ndi destroy stopped in this line
//*self.state.lock().unwrap() = Default::default();
true
@ -326,16 +336,12 @@ impl NdiVideoSrc {
fn fixate(&self, element: &BaseSrc, caps: gst::Caps) -> gst::Caps {
//We need to set the correct caps resolution and framerate
unsafe{
let map = hashmap_receivers.lock().unwrap();
let receivers = hashmap_receivers.lock().unwrap();
let settings = self.settings.lock().unwrap();
let mut id = &settings.stream_name;
if (&settings.ip != ""){
id = &settings.ip;
}
let recv = map.get(id).unwrap();
let recv = &receivers.get(&settings.id_receiver).unwrap().ndi_instance;
let pNDI_recv = recv.recv;
let mut timestamp_data = self.timestamp_data.lock().unwrap();
let video_frame: NDIlib_video_frame_v2_t = Default::default();
@ -387,14 +393,9 @@ impl NdiVideoSrc {
Some(ref info) => info.clone(),
};
unsafe{
let map = hashmap_receivers.lock().unwrap();
let mut id = &_settings.stream_name;
if (&_settings.ip != ""){
id = &_settings.ip;
}
let recv = map.get(id).unwrap();
let receivers = hashmap_receivers.lock().unwrap();
let recv = &receivers.get(&_settings.id_receiver).unwrap().ndi_instance;
let pNDI_recv = recv.recv;
let pts: u64;