First decent version of the module
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+36
-33
@@ -4,6 +4,7 @@ PROVIDER_DST="/data/local/tmp/virtual_camera_provider"
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LIB_DST="/data/local/tmp/virtualcam_libs"
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BOOT_LOG="$MODDIR/boot.log"
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MODULE_PROP="$MODDIR/module.prop"
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DISABLE_FLAG="/data/local/tmp/virtualcam_disabled"
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log() {
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echo "[$(date)] $*" >> "$BOOT_LOG"
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@@ -11,40 +12,44 @@ log() {
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log "service.sh starting"
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# Clear any stale disable flag from a previous session
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# This ensures the module always starts fresh after boot
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rm -f /data/local/tmp/virtualcam_disabled
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# Wait for boot to settle
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sleep 30
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# Load v4l2loopback if not already loaded (safe here, boot is complete)
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# Load v4l2loopback if not already loaded
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if ! lsmod 2>/dev/null | grep -q v4l2loopback; then
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log "service: loading v4l2loopback"
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insmod "$MODDIR/v4l2loopback.ko" devices=2 video_nr=0,1 card_label="VirtualCam" exclusive_caps=0 2>/dev/null && \
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log "service: v4l2loopback loaded" || log "service: v4l2loopback load failed"
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fi
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# Configure v4l2loopback for seamless loop transitions:
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# sustain_framerate=1 repeats the last written frame when the writer pauses
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# timeout=0 prevents kernel from injecting black timeout images
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sleep 2 # Wait for device nodes to appear
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# Configure v4l2loopback
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sleep 2
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if [ -c /dev/video0 ]; then
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v4l2-ctl -d /dev/video0 -c sustain_framerate=1 >/dev/null 2>&1 || true
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v4l2-ctl -d /dev/video0 -c timeout=0 >/dev/null 2>&1 || true
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log "service: v4l2loopback configured (sustain_framerate=1, timeout=0)"
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log "service: v4l2loopback configured"
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fi
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# Start feeder FIRST so /dev/video0 has a format set before provider starts
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# This prevents mmap EACCES in V4L2 reader
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if [ -f "/data/local/tmp/virtualcam_config.json" ]; then
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log "service: starting feeder before provider"
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/system/bin/sh "$MODDIR/control.sh" start_feeder >/dev/null 2>&1
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fi
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# Start feeder then provider at boot (unless disabled flag exists)
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if [ ! -f "$DISABLE_FLAG" ]; then
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if [ -f "/data/local/tmp/virtualcam_config.json" ]; then
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log "service: starting feeder before provider"
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/system/bin/sh "$MODDIR/control.sh" start_feeder >/dev/null 2>&1
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fi
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# Now start provider (feeder already writing, so mmap will succeed)
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if ! pgrep -f virtual_camera_provider >/dev/null 2>&1 && [ -x "$PROVIDER_DST" ]; then
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log "service: starting provider"
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nohup env LD_LIBRARY_PATH="$LIB_DST" "$PROVIDER_DST" \
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-d /dev/video0 -w 1920 -h 1080 -i virtual \
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</dev/null >/dev/null 2>&1 &
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log "service: provider launched"
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if ! pgrep -f virtual_camera_provider >/dev/null 2>&1 && [ -x "$PROVIDER_DST" ]; then
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log "service: starting provider"
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nohup env LD_LIBRARY_PATH="$LIB_DST" "$PROVIDER_DST" \
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-d /dev/video0 -w 1920 -h 1080 -i virtual \
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</dev/null >/dev/null 2>&1 &
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log "service: provider launched"
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fi
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else
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log "service: disabled flag exists, skipping auto-start"
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fi
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# Periodic watchdog + description update
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@@ -54,7 +59,6 @@ while true; do
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V4L2=$(lsmod 2>/dev/null | grep -q v4l2loopback && echo 1 || echo 0)
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SVC=$(service list 2>/dev/null | grep -q "virtual/0" && echo 1 || echo 0)
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# Determine status
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if [ -n "$PROVIDER_PID" ] && [ "$SVC" = "1" ]; then
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STATUS="active"
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elif [ -n "$PROVIDER_PID" ] || [ "$SVC" = "1" ]; then
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@@ -78,21 +82,21 @@ while true; do
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fi
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fi
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# Restart provider if dead
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if [ -z "$PROVIDER_PID" ] && [ -x "$PROVIDER_DST" ]; then
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log "service: provider died, restarting"
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nohup env LD_LIBRARY_PATH="$LIB_DST" "$PROVIDER_DST" \
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-d /dev/video0 -w 1920 -h 1080 -i virtual \
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</dev/null >/dev/null 2>&1 &
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# Only auto-restart if not disabled
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if [ ! -f "$DISABLE_FLAG" ] && [ ! -f "/data/local/tmp/virtualcam_feeder_disabled" ]; then
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if [ -z "$FEEDER_PID" ] && [ -f "/data/local/tmp/virtualcam_config.json" ]; then
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log "service: auto-starting feeder"
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/system/bin/sh "$MODDIR/control.sh" start_feeder >/dev/null 2>&1
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fi
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fi
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# Auto-start feeder if not running and config exists
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if [ -z "$FEEDER_PID" ] && [ -f "/data/local/tmp/virtualcam_config.json" ]; then
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log "service: auto-starting feeder"
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/system/bin/sh "$MODDIR/control.sh" start_feeder >/dev/null 2>&1
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if [ -z "$FEEDER_PID" ] && [ -f "/data/local/tmp/virtualcam_config.json" ]; then
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log "service: auto-starting feeder"
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/system/bin/sh "$MODDIR/control.sh" start_feeder >/dev/null 2>&1
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fi
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fi
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# Memory check: kill provider/feeder if RSS exceeds 512MB (safety limit)
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# Memory check
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for pid in $PROVIDER_PID $FEEDER_PID; do
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[ -z "$pid" ] && continue
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rss_kb=$(cat /proc/$pid/status 2>/dev/null | grep VmRSS | awk '{print $2}')
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@@ -102,14 +106,13 @@ while true; do
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fi
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done
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# Check if stock HAL came back and kill it
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# Kill stock HAL if it reappears
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STOCK_PIDS=$(ps -A | grep -i "camera.provider" | grep -v "virtual_camera_provider" | awk '{print $1}')
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if [ -n "$STOCK_PIDS" ]; then
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for pid in $STOCK_PIDS; do
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log "service: killing stock HAL PID $pid"
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kill -9 "$pid" 2>/dev/null || true
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done
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# Try to stop the service via property if possible
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setprop ctl.stop vendor.camera-provider-2-7-google 2>/dev/null || true
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setprop ctl.stop vendor.camera-provider-pixel 2>/dev/null || true
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fi
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