[test] Add offline processing integration test

integration_tests/Cargo.toml

@@ -44,3 +44,4 @@ signal-hook = { workspace = true }
 tokio-tungstenite = "0.21.0"
 wgpu = { workspace = true }
 image = { workspace = true }
+regex = "1.10.6"

integration_tests/src/compositor_instance.rs

@@ -1,7 +1,7 @@
 use anyhow::{anyhow, Result};
 use crossbeam_channel::Sender;
 use live_compositor::{
-    config::{read_config, LoggerConfig, LoggerFormat},
+    config::{read_config, Config, LoggerConfig, LoggerFormat},
     logger::{self, FfmpegLogLevel},
     server::run_api,
     state::ApiState,
@@ -31,10 +31,11 @@ impl Drop for CompositorInstance {
 }
 
 impl CompositorInstance {
-    pub fn start() -> Self {
+    /// api port in config is overwritten
+    pub fn start(config: Option<Config>) -> Self {
         init_compositor_prerequisites();
         let api_port = get_free_port();
-        let mut config = read_config();
+        let mut config = config.unwrap_or(read_config());
         config.api_port = api_port;
 
         info!("Starting LiveCompositor Integration Test with config:\n{config:#?}",);

integration_tests/src/tests.rs

@@ -1,6 +1,76 @@
 mod audio_only;
+mod offline_processing;
 mod push_input_before_start;
 mod required_inputs;
 mod schedule_update;
 mod unregistering;
 mod video_audio;
+
+use crossbeam_channel::Sender;
+use futures_util::{SinkExt as _, StreamExt as _};
+use tokio_tungstenite::tungstenite;
+
+pub fn start_server_msg_listener(port: u16, event_sender: Sender<tungstenite::Message>) {
+    std::thread::Builder::new()
+        .name("Websocket Thread".to_string())
+        .spawn(move || {
+            tokio::runtime::Runtime::new()
+                .unwrap()
+                .block_on(async { server_msg_listener(port, event_sender).await });
+        })
+        .unwrap();
+}
+
+async fn server_msg_listener(port: u16, event_sender: Sender<tungstenite::Message>) {
+    let url = format!("ws://127.0.0.1:{}/ws", port);
+
+    let (ws_stream, _) = tokio_tungstenite::connect_async(url)
+        .await
+        .expect("Failed to connect");
+
+    let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel();
+    let (mut outgoing, mut incoming) = ws_stream.split();
+
+    let sender_task = tokio::spawn(async move {
+        while let Some(msg) = rx.recv().await {
+            if let tungstenite::Message::Close(None) = &msg {
+                let _ = outgoing.send(msg).await;
+                return;
+            }
+            match outgoing.send(msg).await {
+                Ok(()) => (),
+                Err(e) => {
+                    println!("Send Loop: {:?}", e);
+                    let _ = outgoing.send(tungstenite::Message::Close(None)).await;
+                    return;
+                }
+            }
+        }
+    });
+
+    let receiver_task = tokio::spawn(async move {
+        while let Some(result) = incoming.next().await {
+            match result {
+                Ok(tungstenite::Message::Close(_)) => {
+                    let _ = tx.send(tungstenite::Message::Close(None));
+                    return;
+                }
+                Ok(tungstenite::Message::Ping(data)) => {
+                    if tx.send(tungstenite::Message::Pong(data)).is_err() {
+                        return;
+                    }
+                }
+                Err(_) => {
+                    let _ = tx.send(tungstenite::Message::Close(None));
+                    return;
+                }
+                Ok(msg) => {
+                    event_sender.send(msg).unwrap();
+                }
+            }
+        }
+    });
+
+    sender_task.await.unwrap();
+    receiver_task.await.unwrap();
+}

integration_tests/src/tests/audio_only.rs

@@ -13,7 +13,7 @@ use crate::{
 #[test]
 pub fn audio_mixing_with_offset() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "audio_mixing_with_offset_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let input_2_port = instance.get_port();
     let output_port = instance.get_port();
@@ -112,7 +112,7 @@ pub fn audio_mixing_with_offset() -> Result<()> {
 #[test]
 pub fn audio_mixing_no_offset() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "audio_mixing_no_offset_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let input_2_port = instance.get_port();
     let output_port = instance.get_port();
@@ -213,7 +213,7 @@ pub fn audio_mixing_no_offset() -> Result<()> {
 #[test]
 pub fn single_input_opus() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "single_input_opus_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let output_port = instance.get_port();
 
@@ -295,7 +295,7 @@ pub fn single_input_opus() -> Result<()> {
 #[test]
 pub fn single_input_aac() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "single_input_aac_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let output_port = instance.get_port();
 

integration_tests/src/tests/offline_processing.rs

@@ -0,0 +1,149 @@
+use std::{
+    fs::{self},
+    path::Path,
+    process::Command,
+};
+
+use anyhow::{anyhow, Result};
+use live_compositor::config::read_config;
+use log::info;
+use regex::Regex;
+use serde_json::json;
+use tokio_tungstenite::tungstenite;
+
+use crate::{tests::start_server_msg_listener, CompositorInstance};
+
+const BUNNY_URL: &str =
+    "https://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4";
+
+#[test]
+pub fn offline_processing() -> Result<()> {
+    const OUTPUT_FILE: &str = "/tmp/offline_processing_output.mp4";
+    if Path::new(OUTPUT_FILE).exists() {
+        fs::remove_file(OUTPUT_FILE)?;
+    };
+
+    let mut config = read_config();
+    config.queue_options.ahead_of_time_processing = true;
+    config.queue_options.never_drop_output_frames = true;
+    let instance = CompositorInstance::start(Some(config));
+    let (msg_sender, msg_receiver) = crossbeam_channel::unbounded();
+    start_server_msg_listener(instance.api_port, msg_sender);
+
+    instance.send_request(
+        "input/input_1/register",
+        json!({
+            "type": "mp4",
+            "url": BUNNY_URL,
+            "required": true
+        }),
+    )?;
+
+    instance.send_request(
+        "output/output_1/register",
+        json!({
+            "type": "mp4",
+            "path": OUTPUT_FILE,
+            "video": {
+                "resolution": {
+                    "width": 640,
+                    "height": 320
+                },
+                "encoder": {
+                    "type": "ffmpeg_h264",
+                    "preset": "ultrafast",
+                },
+                "initial": {
+                    "root": {
+                       "type": "view",
+                       "children": [{
+                            "type": "rescaler",
+                            "child": {
+                                "type": "input_stream",
+                                "input_id": "input_1"
+                            }
+                        }]
+                    }
+                },
+                "send_eos_when": { "all_inputs": true }
+            },
+            "audio": {
+                "encoder": {
+                    "type": "aac",
+                    "channels": "stereo"
+                },
+                "initial": {
+                    "inputs": [{ "input_id": "input_1" }]
+                },
+                "send_eos_when": { "all_inputs": true }
+            }
+        }),
+    )?;
+
+    instance.send_request(
+        "input/input_1/unregister",
+        json!({
+            "schedule_time_ms": 2000
+        }),
+    )?;
+    instance.send_request(
+        "output/output_1/unregister",
+        json!({
+            "schedule_time_ms": 2000
+        }),
+    )?;
+
+    instance.send_request("start", json!({}))?;
+
+    for msg in msg_receiver.iter() {
+        if let tungstenite::Message::Text(msg) = msg {
+            if msg.contains("\"type\":\"OUTPUT_DONE\",\"output_id\":\"output_1\"") {
+                info!("breaking");
+                break;
+            }
+        }
+    }
+
+    let command_output = Command::new("ffprobe")
+        .args(["-v", "error", "-show_format", OUTPUT_FILE])
+        .output()
+        .map_err(|e| anyhow!("Invalid mp4 file. FFprobe error: {}", e))?;
+
+    if !command_output.status.success() {
+        return Err(anyhow!(
+            "Invalid mp4 file. FFprobe error: {}",
+            String::from_utf8_lossy(&command_output.stderr)
+        ));
+    }
+
+    let output_str = String::from_utf8_lossy(&command_output.stdout);
+    let (duration, bit_rate) = extract_ffprobe_info(&output_str)?;
+
+    if !(1.9..=2.1).contains(&duration) {
+        return Err(anyhow!("Invalid duration: {}", duration));
+    }
+    if !(950_000..=980_000).contains(&bit_rate) {
+        return Err(anyhow!("Invalid bit rate: {}", bit_rate));
+    }
+
+    Ok(())
+}
+
+fn extract_ffprobe_info(output: &str) -> Result<(f64, u64)> {
+    let re_duration = Regex::new(r"duration=(\d+\.\d+)").unwrap();
+    let re_bit_rate = Regex::new(r"bit_rate=(\d+)").unwrap();
+
+    let duration: f64 = re_duration
+        .captures(output)
+        .and_then(|caps| caps.get(1))
+        .map(|m| m.as_str().parse().unwrap_or(0.0))
+        .ok_or_else(|| anyhow!("Failed to extract duration"))?;
+
+    let bit_rate: u64 = re_bit_rate
+        .captures(output)
+        .and_then(|caps| caps.get(1))
+        .map(|m| m.as_str().parse().unwrap_or(0))
+        .ok_or_else(|| anyhow!("Failed to extract bit rate"))?;
+
+    Ok((duration, bit_rate))
+}

integration_tests/src/tests/push_input_before_start.rs

@@ -18,7 +18,7 @@ use crate::{
 #[test]
 pub fn push_input_before_start_tcp() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "push_entire_input_before_start_tcp.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_port = instance.get_port();
     let output_port = instance.get_port();
 
@@ -103,7 +103,7 @@ pub fn push_input_before_start_tcp() -> Result<()> {
 #[test]
 pub fn push_input_before_start_udp() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "push_entire_input_before_start_udp.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_port = instance.get_port();
     let output_port = instance.get_port();
 
@@ -188,7 +188,7 @@ pub fn push_input_before_start_udp() -> Result<()> {
 #[test]
 pub fn push_input_before_start_tcp_no_offset() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "push_entire_input_before_start_tcp_without_offset.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_port = instance.get_port();
     let output_port = instance.get_port();
 
@@ -273,7 +273,7 @@ pub fn push_input_before_start_tcp_no_offset() -> Result<()> {
 #[test]
 pub fn push_input_before_start_udp_no_offset() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "push_entire_input_before_start_udp_without_offset.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_port = instance.get_port();
     let output_port = instance.get_port();
 

integration_tests/src/tests/required_inputs.rs

@@ -14,7 +14,7 @@ use serde_json::json;
 #[test]
 pub fn required_inputs_no_offset() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "required_inputs_no_offset_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let input_2_port = instance.get_port();
     let output_port = instance.get_port();
@@ -131,7 +131,7 @@ pub fn required_inputs_no_offset() -> Result<()> {
 #[test]
 pub fn required_inputs_with_offset() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "required_inputs_with_offset_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let input_2_port = instance.get_port();
     let output_port = instance.get_port();
@@ -252,7 +252,7 @@ pub fn required_inputs_with_offset() -> Result<()> {
 #[test]
 pub fn optional_inputs_no_offset_flaky() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "optional_inputs_no_offset_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let input_2_port = instance.get_port();
     let output_port = instance.get_port();

integration_tests/src/tests/schedule_update.rs

@@ -14,7 +14,7 @@ use serde_json::json;
 #[test]
 pub fn schedule_update() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "schedule_update_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_1_port = instance.get_port();
     let input_2_port = instance.get_port();
     let output_port = instance.get_port();

integration_tests/src/tests/unregistering.rs

@@ -13,7 +13,7 @@ use serde_json::json;
 #[test]
 pub fn unregistering() -> Result<()> {
     const OUTPUT_DUMP_FILE: &str = "unregistering_test_output.rtp";
-    let instance = CompositorInstance::start();
+    let instance = CompositorInstance::start(None);
     let input_port = instance.get_port();
     let output_port = instance.get_port();