Docker: Fix video recording in Node consume high CPU

Video/video.sh

@@ -14,7 +14,7 @@ VIDEO_CONFIG_DIRECTORY=${VIDEO_CONFIG_DIRECTORY:-"/opt/bin"}
 UPLOAD_DESTINATION_PREFIX=${UPLOAD_DESTINATION_PREFIX:-$SE_UPLOAD_DESTINATION_PREFIX}
 UPLOAD_PIPE_FILE_NAME=${SE_UPLOAD_PIPE_FILE_NAME:-"uploadpipe"}
 SE_SERVER_PROTOCOL=${SE_SERVER_PROTOCOL:-"http"}
-poll_interval=${SE_VIDEO_POLL_INTERVAL:-1}
+poll_interval=${SE_VIDEO_POLL_INTERVAL:-2}
 max_attempts=${SE_VIDEO_WAIT_ATTEMPTS:-50}
 file_ready_max_attempts=${SE_VIDEO_FILE_READY_WAIT_ATTEMPTS:-5}
 wait_uploader_shutdown_max_attempts=${SE_VIDEO_WAIT_UPLOADER_SHUTDOWN_ATTEMPTS:-5}
@@ -229,8 +229,11 @@ if [[ "${VIDEO_UPLOAD_ENABLED}" != "true" ]] && [[ "${VIDEO_FILE_NAME}" != "auto
   wait_for_display
   video_file="$VIDEO_FOLDER/$VIDEO_FILE_NAME"
   # exec replaces the video.sh process with ffmpeg, this makes easier to pass the process termination signal
-  ffmpeg -hide_banner -loglevel warning -flags low_delay -threads 2 -fflags nobuffer+genpts -strict experimental -y -f x11grab \
-    -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET} -pix_fmt yuv420p "$video_file" &
+  ffmpeg -hide_banner -loglevel warning -threads ${SE_FFMPEG_THREADS:-1} -thread_queue_size 512 \
+    -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \
+    -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \
+    -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \
+    -pix_fmt yuv420p -movflags +faststart "$video_file" &
   FFMPEG_PID=$!
   if ps -p $FFMPEG_PID >/dev/null; then
     wait $FFMPEG_PID
@@ -262,8 +265,11 @@ else
         log_node_response
         video_file="${VIDEO_FOLDER}/$video_file_name"
         echo "$(date -u +"${ts_format}") [${process_name}] - Starting to record video"
-        ffmpeg -hide_banner -loglevel warning -flags low_delay -threads 2 -fflags nobuffer+genpts -strict experimental -y -f x11grab \
-          -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET} -pix_fmt yuv420p "$video_file" &
+        ffmpeg -hide_banner -loglevel warning -threads ${SE_FFMPEG_THREADS:-1} -thread_queue_size 512 \
+          -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \
+          -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \
+          -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \
+          -pix_fmt yuv420p -movflags +faststart "$video_file" &
         FFMPEG_PID=$!
         if ps -p $FFMPEG_PID >/dev/null; then
           recording_started="true"
@@ -281,6 +287,8 @@ else
     elif [[ $recording_started = "true" ]]; then
       echo "$(date -u +"${ts_format}") [${process_name}] - Video recording in progress"
       sleep ${poll_interval}
+    else
+      sleep ${poll_interval}
     fi
   done
   stop_if_recording_inprogress

tests/docker-compose-v3-dev-arm64.yml

@@ -17,6 +17,7 @@ services:
       - SE_EVENT_BUS_HOST=selenium-hub
       - SE_VNC_NO_PASSWORD=true
       - SE_NODE_ENABLE_MANAGED_DOWNLOADS=true
+      - SE_RECORD_VIDEO=true
 
   firefox:
     deploy:
@@ -32,6 +33,7 @@ services:
       - SE_EVENT_BUS_HOST=selenium-hub
       - SE_VNC_NO_PASSWORD=true
       - SE_NODE_ENABLE_MANAGED_DOWNLOADS=true
+      - SE_RECORD_VIDEO=true
 
   selenium-hub:
     image: selenium/hub:4.33.0-20250525

tests/docker-compose-v3-get-started-arm64.yml

@@ -5,11 +5,9 @@ services:
   chrome:
     deploy:
       mode: replicated
-      replicas: 1
+      replicas: 3
     image: selenium/node-chromium:latest
     shm_size: 2gb
-    ports:
-      - "5900:5900"
     depends_on:
       - selenium-hub
     volumes:
@@ -23,11 +21,9 @@ services:
   firefox:
     deploy:
       mode: replicated
-      replicas: 1
+      replicas: 3
     image: selenium/node-firefox:latest
     shm_size: 2gb
-    ports:
-      - "5901:5900"
     depends_on:
       - selenium-hub
     volumes:

tests/get_started.py

@@ -29,7 +29,7 @@ def run_browser_instance(browser, grid_url):
     elif browser == "edge":
         options = EdgeOptions()
     options.enable_bidi = True
-    options.enable_downloads = True
+    options.enable_downloads = False
 
     while True:
         driver = webdriver.Remote(