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client: add MJPG camera input

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This commit is contained in:
Brad Stein 2026-01-06 16:19:55 -03:00
parent 6a76be3c38
commit d8b0d739a5
1 changed files with 32 additions and 10 deletions
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42
client/src/input/camera.rs
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@ -31,9 +31,19 @@ impl CameraCapture {
None => "/dev/video0".into(),
};
// let (enc, raw_caps) = Self::pick_encoder();
// (NVIDIA → VA-API → software x264).
let (enc, kf_prop, kf_val) = Self::choose_encoder();
let use_mjpg = std::env::var("LESAVKA_CAM_MJPG").is_ok()
|| std::env::var("LESAVKA_CAM_FORMAT")
.ok()
.map(|v| matches!(v.to_ascii_lowercase().as_str(), "mjpg" | "mjpeg" | "jpeg"))
.unwrap_or(false);
let (enc, kf_prop, kf_val) = if use_mjpg {
("x264enc", "key-int-max", "30")
} else {
Self::choose_encoder()
};
if use_mjpg {
tracing::info!("📸 using MJPG source with software encode");
}
tracing::info!("📸 using encoder element: {enc}");
let width = env_u32("LESAVKA_CAM_WIDTH", 1280);
let height = env_u32("LESAVKA_CAM_HEIGHT", 720);
@ -72,13 +82,25 @@ impl CameraCapture {
// * nvh264enc needs NVMM memory caps;
// * vaapih264enc wants system-memory caps;
// * x264enc needs the usual raw caps.
let desc = format!(
"v4l2src device={dev} do-timestamp=true ! {src_caps} ! \
{preenc} {enc} {kf_prop}={kf_val} ! \
h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! \
queue max-size-buffers=30 leaky=downstream ! \
appsink name=asink emit-signals=true max-buffers=60 drop=true"
);
let desc = if use_mjpg {
format!(
"v4l2src device={dev} do-timestamp=true ! \
image/jpeg,width={width},height={height} ! \
jpegdec ! videorate ! video/x-raw,framerate={fps}/1 ! \
videoconvert ! {enc} {kf_prop}={kf_val} ! \
h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! \
queue max-size-buffers=30 leaky=downstream ! \
appsink name=asink emit-signals=true max-buffers=60 drop=true"
)
} else {
format!(
"v4l2src device={dev} do-timestamp=true ! {src_caps} ! \
{preenc} {enc} {kf_prop}={kf_val} ! \
h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! \
queue max-size-buffers=30 leaky=downstream ! \
appsink name=asink emit-signals=true max-buffers=60 drop=true"
)
};
tracing::info!(%enc, width, height, fps, ?desc, "📸 using encoder element");
let pipeline: gst::Pipeline = gst::parse::launch(&desc)