From 49fdd9c3dec1253a294cceb7fd6348137ff5414d Mon Sep 17 00:00:00 2001
From: Brad Stein <Brad.Stein@gmail.com>
Date: Tue, 6 Jan 2026 09:47:41 -0300
Subject: [PATCH] client: allow webcam resolution overrides

---
 client/src/input/camera.rs | 32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)

diff --git a/client/src/input/camera.rs b/client/src/input/camera.rs
index ee949fa..61120cf 100644
--- a/client/src/input/camera.rs
+++ b/client/src/input/camera.rs
@@ -7,6 +7,13 @@ use gstreamer as gst;
 use gstreamer_app as gst_app;
 use lesavka_common::lesavka::VideoPacket;
 
+fn env_u32(name: &str, default: u32) -> u32 {
+    std::env::var(name)
+        .ok()
+        .and_then(|v| v.parse::<u32>().ok())
+        .unwrap_or(default)
+}
+
 pub struct CameraCapture {
     #[allow(dead_code)] // kept alive to hold PLAYING state
     pipeline: gst::Pipeline,
@@ -28,23 +35,30 @@ impl CameraCapture {
         // (NVIDIA → VA-API → software x264).
         let (enc, kf_prop, kf_val) = Self::choose_encoder();
         tracing::info!("📸 using encoder element: {enc}");
+        let width = env_u32("LESAVKA_CAM_WIDTH", 1280);
+        let height = env_u32("LESAVKA_CAM_HEIGHT", 720);
+        let fps = env_u32("LESAVKA_CAM_FPS", 30).max(1);
         let have_nvvidconv = gst::ElementFactory::find("nvvidconv").is_some();
         let (src_caps, preenc) = match enc {
             // ───────────────────────────────────────────────────────────────────
             // Jetson (has nvvidconv)      Desktop (falls back to videoconvert)
             // ───────────────────────────────────────────────────────────────────
             "nvh264enc" if have_nvvidconv =>
-                ("video/x-raw(memory:NVMM),format=NV12,width=1280,height=720",
-                "nvvidconv !"),
+                (format!(
+                    "video/x-raw(memory:NVMM),format=NV12,width={width},height={height},framerate={fps}/1"
+                ), "nvvidconv !"),
             "nvh264enc" /* else */ =>
-                ("video/x-raw,format=NV12,width=1280,height=720",
-                "videoconvert !"),
+                (format!(
+                    "video/x-raw,format=NV12,width={width},height={height},framerate={fps}/1"
+                ), "videoconvert !"),
             "vaapih264enc" =>
-                ("video/x-raw,format=NV12,width=1280,height=720",
-                "videoconvert !"),
+                (format!(
+                    "video/x-raw,format=NV12,width={width},height={height},framerate={fps}/1"
+                ), "videoconvert !"),
             _ =>
-                ("video/x-raw,width=1280,height=720",
-                "videoconvert !"),
+                (format!(
+                    "video/x-raw,width={width},height={height},framerate={fps}/1"
+                ), "videoconvert !"),
         };
 
         // let desc = format!(
@@ -65,7 +79,7 @@ impl CameraCapture {
              queue max-size-buffers=30 leaky=downstream ! \
              appsink name=asink emit-signals=true max-buffers=60 drop=true"
         );
-        tracing::info!(%enc, ?desc, "📸 using encoder element");
+        tracing::info!(%enc, width, height, fps, ?desc, "📸 using encoder element");
 
         let pipeline: gst::Pipeline = gst::parse::launch(&desc)
             .context("gst parse_launch(cam)")?