fix(call): enable direct video and shorten portmap probe

desktop/src-tauri/src/engine.rs

@@ -759,7 +759,7 @@ impl CallEngine {
                 t_ms = call_t0.elapsed().as_millis(),
                 "first-join diag: direct P2P — skipping relay handshake (QUIC TLS is the encryption layer)"
             );
-            (None, transport)
+            (Some(wzp_proto::CodecId::H264Baseline), transport)
         };
         crate::emit_call_debug(
             &app,
@@ -1869,8 +1869,9 @@ impl CallEngine {
         ));
 
         // Video send task (Android) — mirror of the desktop branch. Only
-        // spawns when the relay handshake negotiated a video codec; on
+        // spawns when a video codec is available. Relay calls negotiate this
-        // direct P2P video is currently disabled.
+        // in the media handshake; direct P2P uses the common H264 baseline
+        // codec because the relay handshake is intentionally skipped.
         let camera_tx = if let Some(vid_codec) = _negotiated_video_codec {
             let (tx, mut rx) = tokio::sync::mpsc::channel::<wzp_video::encoder::VideoFrame>(4);
             let vid_transport = transport.clone();
@@ -2172,11 +2173,7 @@ impl CallEngine {
                 "video:send_disabled",
                 serde_json::json!({
                     "t_ms": call_t0.elapsed().as_millis(),
-                    "reason": if is_direct_p2p {
+                    "reason": "no_video_codec_negotiated",
-                        "direct_p2p_skips_relay_handshake"
-                    } else {
-                        "no_video_codec_negotiated"
-                    },
                     "platform": "android",
                 }),
             );
@@ -2310,7 +2307,7 @@ impl CallEngine {
                 (hs.video_codec, transport)
             } else {
                 info!("direct P2P — skipping relay handshake (QUIC TLS is the encryption layer)");
-                (None, transport)
+                (Some(wzp_proto::CodecId::H264Baseline), transport)
             };
         crate::emit_call_debug(
             &_app,
@@ -3050,9 +3047,9 @@ impl CallEngine {
             event_cb.clone(),
         ));
 
-        // Video send task — active only when the handshake negotiated a video codec.
+        // Video send task — active when a video codec is available. Relay calls
-        // Camera frames arrive via camera_tx; the task encodes and packetizes them.
+        // negotiate this in the media handshake; direct P2P uses the common H264
-        // Blocker 4 (camera capture) will push frames into this channel.
+        // baseline codec because the relay handshake is intentionally skipped.
         let camera_tx = if let Some(vid_codec) = _negotiated_video_codec {
             let (tx, mut rx) = tokio::sync::mpsc::channel::<wzp_video::encoder::VideoFrame>(4);
             let vid_transport = transport.clone();
@@ -3354,11 +3351,7 @@ impl CallEngine {
                 "video:send_disabled",
                 serde_json::json!({
                     "t_ms": call_t0.elapsed().as_millis(),
-                    "reason": if is_direct_p2p {
+                    "reason": "no_video_codec_negotiated",
-                        "direct_p2p_skips_relay_handshake"
-                    } else {
-                        "no_video_codec_negotiated"
-                    },
                     "platform": "desktop",
                 }),
             );

desktop/src-tauri/src/lib.rs

@@ -2462,8 +2462,13 @@ async fn place_call(
             .map(|la| la.port())
             .unwrap_or(0);
         if v4_port > 0 {
-            match wzp_client::portmap::acquire_port_mapping(v4_port, None).await {
+            match tokio::time::timeout(
-                Ok(mapping) => {
+                std::time::Duration::from_millis(750),
+                wzp_client::portmap::acquire_port_mapping(v4_port, None),
+            )
+            .await
+            {
+                Ok(Ok(mapping)) => {
                     let addr = mapping.external_addr.to_string();
                     tracing::info!(%addr, protocol = ?mapping.protocol, "place_call: port mapping acquired");
                     emit_call_debug(
@@ -2475,10 +2480,19 @@ async fn place_call(
                     );
                     Some(addr)
                 }
-                Err(e) => {
+                Ok(Err(e)) => {
                     tracing::debug!(error = %e, "place_call: port mapping unavailable (normal on most networks)");
                     None
                 }
+                Err(_) => {
+                    tracing::debug!("place_call: port mapping quick probe timed out");
+                    emit_call_debug(
+                        &app,
+                        "place_call:portmap_timeout",
+                        serde_json::json!({ "timeout_ms": 750 }),
+                    );
+                    None
+                }
             }
         } else {
             None
@@ -2705,8 +2719,13 @@ async fn answer_call(
                 .map(|la| la.port())
                 .unwrap_or(0);
             if v4_port > 0 {
-                match wzp_client::portmap::acquire_port_mapping(v4_port, None).await {
+                match tokio::time::timeout(
-                    Ok(mapping) => {
+                    std::time::Duration::from_millis(750),
+                    wzp_client::portmap::acquire_port_mapping(v4_port, None),
+                )
+                .await
+                {
+                    Ok(Ok(mapping)) => {
                         tracing::info!(
                             addr = %mapping.external_addr,
                             protocol = ?mapping.protocol,
@@ -2714,10 +2733,19 @@ async fn answer_call(
                         );
                         Some(mapping.external_addr.to_string())
                     }
-                    Err(e) => {
+                    Ok(Err(e)) => {
                         tracing::debug!(error = %e, "answer_call: port mapping unavailable");
                         None
                     }
+                    Err(_) => {
+                        tracing::debug!("answer_call: port mapping quick probe timed out");
+                        emit_call_debug(
+                            &app,
+                            "answer_call:portmap_timeout",
+                            serde_json::json!({ "timeout_ms": 750 }),
+                        );
+                        None
+                    }
                 }
             } else {
                 None