whip whep whap

pi/bin/whip-publisher.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ENV_FILE="${WHIP_ENV_FILE:-/var/lib/roverd/whip.env}"
+
+if [[ ! -f "$ENV_FILE" ]]; then
+	echo "Environment file ${ENV_FILE} missing; cannot publish" >&2
+	exit 1
+fi
+
+# shellcheck disable=SC1090
+source "$ENV_FILE"
+
+: "${WHIP_URL:?WHIP_URL not set in ${ENV_FILE}}"
+
+VIDEO_WIDTH="${VIDEO_WIDTH:-1280}"
+VIDEO_HEIGHT="${VIDEO_HEIGHT:-720}"
+VIDEO_FPS="${VIDEO_FPS:-30}"
+VIDEO_BITRATE="${VIDEO_BITRATE:-3000000}"
+
+LIBCAMERA_BIN="${LIBCAMERA_BIN:-/usr/bin/libcamera-vid}"
+FFMPEG_BIN="${FFMPEG_BIN:-/usr/bin/ffmpeg}"
+
+if [[ ! -x "$LIBCAMERA_BIN" ]]; then
+	echo "libcamera-vid not found at ${LIBCAMERA_BIN}" >&2
+	exit 1
+fi
+if [[ ! -x "$FFMPEG_BIN" ]]; then
+	echo "ffmpeg not found at ${FFMPEG_BIN}" >&2
+	exit 1
+fi
+
+run_pipeline() {
+	"${LIBCAMERA_BIN}" \
+		--inline \
+		--timeout 0 \
+		--width "${VIDEO_WIDTH}" \
+		--height "${VIDEO_HEIGHT}" \
+		--framerate "${VIDEO_FPS}" \
+		--bitrate "${VIDEO_BITRATE}" \
+		--codec h264 \
+		--denoise cdn_off \
+		--nopreview \
+		--output - |
+	"${FFMPEG_BIN}" \
+		-hide_banner \
+		-loglevel warning \
+		-f h264 \
+		-i pipe:0 \
+		-c:v copy \
+		-an \
+		-f whip \
+		"${WHIP_URL}"
+}
+
+while true; do
+	if run_pipeline; then
+		exit 0
+	fi
+	echo "WHIP publisher exited, restarting in 2s..." >&2
+	sleep 2
+done