From 3886064f3313704e1a83a58c83b786a182c8f9f3 Mon Sep 17 00:00:00 2001
From: Nicolas Mowen <nickmowen213@gmail.com>
Date: Thu, 30 May 2024 10:15:33 -0600
Subject: [PATCH] Limit ffmpeg thread counts for secondary ffmpeg processes

---
 frigate/events/audio.py    | 4 +++-
 frigate/output/birdseye.py | 4 ++++
 frigate/output/camera.py   | 4 ++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/frigate/events/audio.py b/frigate/events/audio.py
index fc8f38dad..074b44735 100644
--- a/frigate/events/audio.py
+++ b/frigate/events/audio.py
@@ -50,11 +50,13 @@ def get_ffmpeg_command(ffmpeg: FfmpegConfig) -> list[str]:
         or get_ffmpeg_arg_list(ffmpeg.input_args)
     )
     return (
-        ["ffmpeg", "-vn"]
+        ["ffmpeg", "-vn", "-threads", "1"]
         + input_args
         + ["-i"]
         + [ffmpeg_input.path]
         + [
+            "-threads",
+            "1",
             "-f",
             f"{AUDIO_FORMAT}",
             "-ar",
diff --git a/frigate/output/birdseye.py b/frigate/output/birdseye.py
index 809ded174..2b17a4cf1 100644
--- a/frigate/output/birdseye.py
+++ b/frigate/output/birdseye.py
@@ -134,6 +134,8 @@ class FFMpegConverter(threading.Thread):
 
         ffmpeg_cmd = [
             "ffmpeg",
+            "-threads",
+            "1",
             "-f",
             "rawvideo",
             "-pix_fmt",
@@ -142,6 +144,8 @@ class FFMpegConverter(threading.Thread):
             f"{in_width}x{in_height}",
             "-i",
             "pipe:",
+            "-threads",
+            "1",
             "-f",
             "mpegts",
             "-s",
diff --git a/frigate/output/camera.py b/frigate/output/camera.py
index b63e0983a..b9c607375 100644
--- a/frigate/output/camera.py
+++ b/frigate/output/camera.py
@@ -31,6 +31,8 @@ class FFMpegConverter(threading.Thread):
 
         ffmpeg_cmd = [
             "ffmpeg",
+            "-threads",
+            "1",
             "-f",
             "rawvideo",
             "-pix_fmt",
@@ -39,6 +41,8 @@ class FFMpegConverter(threading.Thread):
             f"{in_width}x{in_height}",
             "-i",
             "pipe:",
+            "-threads",
+            "1",
             "-f",
             "mpegts",
             "-s",