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feat: auto-detect codec — try H264, H265, then uridecodebin fallback

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Mitchell R 2026-05-10 04:11:18 +02:00
parent 888dc4a4e5
commit 8422fdce90
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1 changed files with 38 additions and 5 deletions
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43
kiosk/prototype.sh
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@ -170,11 +170,44 @@ launch_cameras() {
echo " [${name}] launching: ${rtsp_uri}"
# Try hardware decode first (Pi5 V4L2), fall back to software
gst-launch-1.0 \
uridecodebin uri="$rtsp_uri" \
caps="video/x-raw" \
! videoconvert ! waylandsink fullscreen=true \
2>&1 &
# Try H264 first (hw decode path), fall back to H265, then generic
local launched=false
for depay_chain in \
"rtph264depay ! h264parse ! avdec_h264" \
"rtph265depay ! h265parse ! avdec_h265" \
; do
echo " trying: ${depay_chain%% *}..."
timeout 5 gst-launch-1.0 \
rtspsrc location="$rtsp_uri" latency=300 protocols=tcp \
! $depay_chain \
! videoconvert ! waylandsink fullscreen=true \
2>&1 | head -5 &
local test_pid=$!
sleep 3
if kill -0 "$test_pid" 2>/dev/null; then
# Still running after 3s = success
echo " codec: ${depay_chain%% *} works"
wait "$test_pid" 2>/dev/null || true
# Now launch for real
gst-launch-1.0 \
rtspsrc location="$rtsp_uri" latency=300 protocols=tcp \
! $depay_chain \
! videoconvert ! waylandsink fullscreen=true \
2>&1 &
pids+=($!)
launched=true
break
fi
done
if [[ "$launched" == "false" ]]; then
echo " fallback: uridecodebin"
gst-launch-1.0 \
uridecodebin uri="$rtsp_uri" caps="video/x-raw" \
! videoconvert ! waylandsink fullscreen=true \
2>&1 &
pids+=($!)
fi
pids+=($!)
done