fix: filter rtspsrc pads — only link video to decodebin, skip audio

This commit is contained in:
Mitchell R 2026-05-10 20:51:29 +02:00
parent 877596fc15
commit 246febcc80

View file

@ -38,12 +38,22 @@ pub fn create_camera_pipeline(name: &str, rtsp_uri: &str) -> Option<(Pipeline, E
let decode_weak = decode.downgrade();
let pn = pipeline_name.clone();
src.connect_pad_added(move |_src, pad| {
info!("[{pn}] rtspsrc pad added: {}", pad.name());
let name = pad.name().to_string();
info!("[{pn}] rtspsrc pad added: {name}");
// Only link video pads — check caps for application/x-rtp with video media
let caps = pad.current_caps().unwrap_or_else(|| pad.query_caps(None));
let caps_str = caps.to_string();
if !caps_str.contains("media=(string)video") && !caps_str.contains("encoding-name=(string)H26") {
info!("[{pn}] skipping non-video pad: {caps_str}");
return;
}
let Some(decode) = decode_weak.upgrade() else { return };
let sink_pad = decode.static_pad("sink").unwrap();
if !sink_pad.is_linked() {
match pad.link(&sink_pad) {
Ok(_) => info!("[{pn}] rtspsrc→decodebin linked"),
Ok(_) => info!("[{pn}] rtspsrc→decodebin linked (video)"),
Err(e) => error!("[{pn}] rtspsrc→decodebin link failed: {e:?}"),
}
}
@ -76,7 +86,7 @@ pub fn create_camera_pipeline(name: &str, rtsp_uri: &str) -> Option<(Pipeline, E
// Watch bus for errors
let pn3 = pipeline_name.clone();
let bus = pipeline.bus().unwrap();
bus.add_watch_local(move |_bus, msg| {
let _guard = bus.add_watch_local(move |_bus, msg| {
use gst::MessageView;
match msg.view() {
MessageView::Error(err) => {
@ -96,6 +106,9 @@ pub fn create_camera_pipeline(name: &str, rtsp_uri: &str) -> Option<(Pipeline, E
})
.ok()?;
// Leak the guard so it lives as long as the pipeline
std::mem::forget(_guard);
info!("[{pipeline_name}] pipeline created for {rtsp_uri}");
Some((pipeline, sink))
}