Commit 1fbc5e76 authored by Mathieu Duponchelle's avatar Mathieu Duponchelle 🐸 Committed by Sebastian Dröge

examples: add rtpfec example

Fixes https://github.com/sdroege/gstreamer-rs/pull/73
parent 828f639c
#[macro_use]
extern crate gstreamer as gst;
use gst::prelude::*;
extern crate glib;
use std::env;
use std::error::Error as StdError;
#[path = "../examples-common.rs"]
mod examples_common;
extern crate failure;
use failure::Error;
#[macro_use]
extern crate failure_derive;
#[derive(Debug, Fail)]
#[fail(display = "Missing element {}", _0)]
struct MissingElement(&'static str);
#[derive(Debug, Fail)]
#[fail(display = "No such pad {} in {}", _0, _1)]
struct NoSuchPad(&'static str, String);
#[derive(Debug, Fail)]
#[fail(display = "Unknown payload type {}", _0)]
struct UnknownPT(u32);
#[derive(Debug, Fail)]
#[fail(display = "Usage: {} (play | record) DROP_PROBABILITY", _0)]
struct UsageError(String);
#[derive(Debug, Fail)]
#[fail(display = "Received error from {}: {} (debug: {:?})", src, error, debug)]
struct ErrorMessage {
src: String,
error: String,
debug: Option<String>,
#[cause] cause: glib::Error,
}
fn make_element<'a, P: Into<Option<&'a str>>>(
factory_name: &'static str,
element_name: P,
) -> Result<gst::Element, Error> {
match gst::ElementFactory::make(factory_name, element_name.into()) {
Some(elem) => Ok(elem),
None => Err(Error::from(MissingElement(factory_name))),
}
}
fn get_static_pad(element: &gst::Element, pad_name: &'static str) -> Result<gst::Pad, Error> {
match element.get_static_pad(pad_name) {
Some(pad) => Ok(pad),
None => {
let element_name = element.get_name();
Err(Error::from(NoSuchPad(pad_name, element_name)))
}
}
}
fn get_request_pad(element: &gst::Element, pad_name: &'static str) -> Result<gst::Pad, Error> {
match element.get_request_pad(pad_name) {
Some(pad) => Ok(pad),
None => {
let element_name = element.get_name();
Err(Error::from(NoSuchPad(pad_name, element_name)))
}
}
}
fn connect_rtpbin_srcpad(src_pad: &gst::Pad, sink: &gst::Element) -> Result<(), Error> {
let name = src_pad.get_name();
let split_name = name.split("_");
let split_name = split_name.collect::<Vec<&str>>();
let pt = split_name[5].parse::<u32>()?;
match pt {
96 => {
let sinkpad = get_static_pad(sink, "sink")?;
src_pad.link(&sinkpad).into_result()?;
Ok(())
}
_ => Err(Error::from(UnknownPT(pt))),
}
}
fn make_fec_decoder(rtpbin: &gst::Element, sess_id: u32) -> Result<gst::Element, Error> {
let fecdec = make_element("rtpulpfecdec", None)?;
let internal_storage = rtpbin
.emit("get-internal-storage", &[&sess_id.to_value()])
.unwrap()
.unwrap();
fecdec.set_property("storage", &internal_storage.to_value())?;
fecdec.set_property("pt", &100u32.to_value())?;
Ok(fecdec)
}
fn example_main() -> Result<(), Error> {
gst::init()?;
let args: Vec<_> = env::args().collect();
if args.len() != 3 {
return Err(Error::from(UsageError(args[0].clone())));
}
let drop_probability = args[2].parse::<f32>()?;
let pipeline = gst::Pipeline::new(None);
let src = make_element("udpsrc", None)?;
let netsim = make_element("netsim", None)?;
let rtpbin = make_element("rtpbin", None)?;
let depay = make_element("rtpvp8depay", None)?;
let dec = make_element("vp8dec", None)?;
let conv = make_element("videoconvert", None)?;
let scale = make_element("videoscale", None)?;
let filter = make_element("capsfilter", None)?;
pipeline.add_many(&[
&src,
&netsim,
&rtpbin,
&depay,
&dec,
&conv,
&scale,
&filter,
])?;
gst::Element::link_many(&[&depay, &dec, &conv, &scale, &filter])?;
match args[1].as_str() {
"play" => {
let sink = make_element("autovideosink", None)?;
pipeline.add(&sink)?;
filter.link(&sink)?;
}
"record" => {
let enc = make_element("x264enc", None)?;
let mux = make_element("matroskamux", None)?;
let sink = make_element("filesink", None)?;
pipeline.add_many(&[&enc, &mux, &sink])?;
gst::Element::link_many(&[&filter, &enc, &mux, &sink])?;
sink.set_property("location", &"out.mkv".to_value())?;
enc.set_property_from_str("tune", "zerolatency");
eprintln!("Recording to out.mkv");
}
_ => return Err(Error::from(UsageError(args[0].clone()))),
}
src.link(&netsim)?;
rtpbin.connect("new-storage", false, |values| {
let storage = values[1].get::<gst::Element>().expect("Invalid argument");
storage
.set_property("size-time", &250_000_000u64.to_value())
.unwrap();
None
})?;
rtpbin.connect("request-pt-map", false, |values| {
let pt = values[2].get::<u32>().expect("Invalid argument");
match pt {
100 => Some(
gst::Caps::new_simple(
"application/x-rtp",
&[
("media", &"video"),
("clock-rate", &90000i32),
("is-fec", &true),
],
).to_value(),
),
96 => Some(
gst::Caps::new_simple(
"application/x-rtp",
&[
("media", &"video"),
("clock-rate", &90000i32),
("encoding-name", &"VP8"),
],
).to_value(),
),
_ => None,
}
})?;
rtpbin.connect("request-fec-decoder", false, |values| {
let rtpbin = values[0].get::<gst::Element>().expect("Invalid argument");
let sess_id = values[1].get::<u32>().expect("Invalid argument");
match make_fec_decoder(&rtpbin, sess_id) {
Ok(elem) => Some(elem.to_value()),
Err(err) => {
gst_element_error!(
rtpbin,
gst::LibraryError::Failed,
("Failed to make FEC decoder"),
["{}", err]
);
None
}
}
})?;
let srcpad = get_static_pad(&netsim, "src")?;
let sinkpad = get_request_pad(&rtpbin, "recv_rtp_sink_0")?;
srcpad.link(&sinkpad).into_result()?;
let depay_clone = depay.clone();
rtpbin.connect_pad_added(move |rtpbin, src_pad| {
match connect_rtpbin_srcpad(&src_pad, &depay_clone) {
Ok(_) => (),
Err(err) => {
gst_element_error!(
rtpbin,
gst::LibraryError::Failed,
("Failed to link srcpad"),
["{}", err]
);
()
}
}
});
let rtp_caps = gst::Caps::new_simple("application/x-rtp", &[("clock-rate", &90000i32)]);
let video_caps =
gst::Caps::new_simple("video/x-raw", &[("width", &1920i32), ("height", &1080i32)]);
src.set_property("address", &"127.0.0.1".to_value())?;
src.set_property("caps", &rtp_caps.to_value())?;
netsim.set_property("drop-probability", &drop_probability.to_value())?;
rtpbin.set_property("do-lost", &true.to_value())?;
filter.set_property("caps", &video_caps.to_value())?;
let bus = pipeline
.get_bus()
.expect("Pipeline without bus. Shouldn't happen!");
let ret = pipeline.set_state(gst::State::Playing);
assert_ne!(ret, gst::StateChangeReturn::Failure);
while let Some(msg) = bus.timed_pop(gst::CLOCK_TIME_NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => break,
MessageView::Error(err) => {
return Err(
ErrorMessage {
src: msg.get_src()
.map(|s| s.get_path_string())
.unwrap_or(String::from("None")),
error: err.get_error().description().into(),
debug: err.get_debug(),
cause: err.get_error(),
}.into(),
);
}
MessageView::StateChanged(s) => match msg.get_src() {
Some(element) => if element == pipeline && s.get_current() == gst::State::Playing {
eprintln!("PLAYING");
gst::debug_bin_to_dot_file(
&pipeline,
gst::DebugGraphDetails::all(),
"client-playing",
);
},
None => (),
},
_ => (),
}
}
let ret = pipeline.set_state(gst::State::Null);
assert_ne!(ret, gst::StateChangeReturn::Failure);
Ok((()))
}
fn main() {
match examples_common::run(example_main) {
Ok(r) => r,
Err(e) => eprintln!("Error! {}", e),
}
}
#[macro_use]
extern crate gstreamer as gst;
use gst::prelude::*;
extern crate glib;
use std::error::Error as StdError;
#[path = "../examples-common.rs"]
mod examples_common;
use std::env;
extern crate failure;
use failure::Error;
#[macro_use]
extern crate failure_derive;
#[derive(Debug, Fail)]
#[fail(display = "Missing element {}", _0)]
struct MissingElement(&'static str);
#[derive(Debug, Fail)]
#[fail(display = "No such pad {} in {}", _0, _1)]
struct NoSuchPad(&'static str, String);
#[derive(Debug, Fail)]
#[fail(display = "Usage: {} URI FEC_PERCENTAGE", _0)]
struct UsageError(String);
#[derive(Debug, Fail)]
#[fail(display = "Received error from {}: {} (debug: {:?})", src, error, debug)]
struct ErrorMessage {
src: String,
error: String,
debug: Option<String>,
#[cause] cause: glib::Error,
}
fn make_element<'a, P: Into<Option<&'a str>>>(
factory_name: &'static str,
element_name: P,
) -> Result<gst::Element, Error> {
match gst::ElementFactory::make(factory_name, element_name.into()) {
Some(elem) => Ok(elem),
None => Err(Error::from(MissingElement(factory_name))),
}
}
fn get_static_pad(element: &gst::Element, pad_name: &'static str) -> Result<gst::Pad, Error> {
match element.get_static_pad(pad_name) {
Some(pad) => Ok(pad),
None => {
let element_name = element.get_name();
Err(Error::from(NoSuchPad(pad_name, element_name)))
}
}
}
fn get_request_pad(element: &gst::Element, pad_name: &'static str) -> Result<gst::Pad, Error> {
match element.get_request_pad(pad_name) {
Some(pad) => Ok(pad),
None => {
let element_name = element.get_name();
Err(Error::from(NoSuchPad(pad_name, element_name)))
}
}
}
fn connect_decodebin_pad(src_pad: &gst::Pad, sink: &gst::Element) -> Result<(), Error> {
let sinkpad = get_static_pad(&sink, "sink")?;
src_pad.link(&sinkpad).into_result()?;
Ok(())
}
fn make_fec_encoder(fec_percentage: u32) -> Result<gst::Element, Error> {
let fecenc = make_element("rtpulpfecenc", None)?;
fecenc.set_property("pt", &100u32.to_value())?;
fecenc.set_property("mux-seq", &true.to_value())?;
fecenc.set_property("multipacket", &true.to_value())?;
fecenc.set_property("percentage", &fec_percentage.to_value())?;
Ok(fecenc)
}
fn example_main() -> Result<(), Error> {
gst::init()?;
let args: Vec<_> = env::args().collect();
if args.len() != 3 {
return Err(Error::from(UsageError(args[0].clone())));
}
let uri = &args[1];
let fec_percentage = args[2].parse::<u32>()?;
let pipeline = gst::Pipeline::new(None);
let src = make_element("uridecodebin", None)?;
let conv = make_element("videoconvert", None)?;
let q1 = make_element("queue", None)?;
let enc = make_element("vp8enc", None)?;
let q2 = make_element("queue", None)?;
let pay = make_element("rtpvp8pay", None)?;
let rtpbin = make_element("rtpbin", None)?;
let sink = make_element("udpsink", None)?;
pipeline.add_many(&[&src, &conv, &q1, &enc, &q2, &pay, &rtpbin, &sink])?;
conv.link(&q1)?;
q1.link(&enc)?;
enc.link(&pay)?;
pay.link(&q2)?;
rtpbin.connect("request-fec-encoder", false, move |values| {
let rtpbin = values[0].get::<gst::Element>().expect("Invalid argument");
match make_fec_encoder(fec_percentage) {
Ok(elem) => Some(elem.to_value()),
Err(err) => {
gst_element_error!(
rtpbin,
gst::LibraryError::Failed,
("Failed to make FEC encoder"),
["{}", err]
);
None
}
}
})?;
let srcpad = get_static_pad(&q2, "src")?;
let sinkpad = get_request_pad(&rtpbin, "send_rtp_sink_0")?;
srcpad.link(&sinkpad).into_result()?;
let srcpad = get_static_pad(&rtpbin, "send_rtp_src_0")?;
let sinkpad = get_static_pad(&sink, "sink")?;
srcpad.link(&sinkpad).into_result()?;
let convclone = conv.clone();
src.connect_pad_added(move |decodebin, src_pad| {
match connect_decodebin_pad(&src_pad, &convclone) {
Ok(_) => (),
Err(err) => {
gst_element_error!(
decodebin,
gst::LibraryError::Failed,
("Failed to link decodebin srcpad"),
["{}", err]
);
()
}
}
});
let video_caps = gst::Caps::new_simple("video/x-raw", &[]);
src.set_property_from_str("pattern", "ball");
sink.set_property("host", &"127.0.0.1".to_value())?;
sink.set_property("sync", &true.to_value())?;
enc.set_property("keyframe-max-dist", &30i32.to_value())?;
enc.set_property("threads", &12i32.to_value())?;
enc.set_property("cpu-used", &(-16i32).to_value())?;
enc.set_property("deadline", &1i64.to_value())?;
enc.set_property_from_str("error-resilient", "default");
src.set_property("expose-all-streams", &false.to_value())?;
src.set_property("caps", &video_caps.to_value())?;
src.set_property("uri", &uri.to_value())?;
let bus = pipeline
.get_bus()
.expect("Pipeline without bus. Shouldn't happen!");
let ret = pipeline.set_state(gst::State::Playing);
assert_ne!(ret, gst::StateChangeReturn::Failure);
while let Some(msg) = bus.timed_pop(gst::CLOCK_TIME_NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => break,
MessageView::Error(err) => {
return Err(
ErrorMessage {
src: msg.get_src()
.map(|s| s.get_path_string())
.unwrap_or(String::from("None")),
error: err.get_error().description().into(),
debug: err.get_debug(),
cause: err.get_error(),
}.into(),
);
}
MessageView::StateChanged(s) => match msg.get_src() {
Some(element) => if element == pipeline && s.get_current() == gst::State::Playing {
eprintln!("PLAYING");
gst::debug_bin_to_dot_file(
&pipeline,
gst::DebugGraphDetails::all(),
"server-playing",
);
},
None => (),
},
_ => (),
}
}
let ret = pipeline.set_state(gst::State::Null);
assert_ne!(ret, gst::StateChangeReturn::Failure);
Ok((()))
}
fn main() {
match examples_common::run(example_main) {
Ok(r) => r,
Err(e) => eprintln!("Error! {}", e),
}
}
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