diff --git a/binding.gyp b/binding.gyp
index b5aaf6d..2d8af4b 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -1,7 +1,7 @@
 {
   "targets": [{
     "target_name" : "beamcoder",
-    "sources" : [ "src/beamcoder.cc", "src/beamcoder_util.cc", 
+    "sources" : [ "src/beamcoder.cc", "src/beamcoder_util.cc",
                   "src/log.cc" ,
                   "src/governor.cc", "src/demux.cc",
                   "src/decode.cc", "src/filter.cc",
@@ -90,10 +90,12 @@
     }],
     ['OS=="mac"', {
       "include_dirs" : [
-        "/opt/homebrew/Cellar/ffmpeg/5.0/include"
+        "/usr/local/Cellar/ffmpeg@5/5.1.3/include/",
+        "/opt/homebrew/Cellar/ffmpeg@5/5.1.3/include/",
       ],
       "library_dirs": [
-        "/opt/homebrew/Cellar/ffmpeg/5.0/lib",
+        "/usr/local/Cellar/ffmpeg@5/5.1.3/lib/",
+        "/opt/homebrew/Cellar/ffmpeg@5/5.1.3/lib/",
       ]
     }],
   ]
diff --git a/install_ffmpeg.js b/install_ffmpeg.js
index 6e375c9..be18bfa 100644
--- a/install_ffmpeg.js
+++ b/install_ffmpeg.js
@@ -99,7 +99,7 @@ async function win32() {
     if (e.code === 'EEXIST') return;
     else throw e;
   });
-  
+
   const ffmpegFilename = 'ffmpeg-5.x-win64-shared';
   await access(`ffmpeg/${ffmpegFilename}`, fs.constants.R_OK).catch(async () => {
     const html = await getHTML('https://github.com/BtbN/FFmpeg-Builds/wiki/Latest', 'latest autobuilds');
@@ -180,12 +180,13 @@ async function darwin() {
   console.log('Checking for FFmpeg dependencies via HomeBrew.');
   let output;
   let returnMessage;
-  
+
   try {
-    output = await exec('brew list ffmpeg');
+    output = await exec('brew list ffmpeg@5');
     returnMessage = 'FFmpeg already present via Homebrew.';
   } catch (err) {
-    if (err.stderr !== 'Error: No such keg: /usr/local/Cellar/ffmpeg\n') {
+    if (err.stderr.indexOf('Error: No such keg') === -1 &&
+        err.stderr.indexOf('ffmpeg@5') === -1) {
       console.error(err);
       console.log('Either Homebrew is not installed or something else is wrong.\nExiting');
       process.exit(1);
@@ -193,7 +194,7 @@ async function darwin() {
 
     console.log('FFmpeg not installed. Attempting to install via Homebrew.');
     try {
-      output = await exec('brew install nasm pkg-config texi2html ffmpeg');
+      output = await exec('brew install nasm pkg-config texi2html ffmpeg@5');
       returnMessage = 'FFmpeg installed via Homebrew.';
     } catch (err) {
       console.log('Failed to install ffmpeg:\n');
diff --git a/types/Filter.d.ts b/types/Filter.d.ts
index 61ade20..c41d2e3 100644
--- a/types/Filter.d.ts
+++ b/types/Filter.d.ts
@@ -265,8 +265,8 @@ export interface VideoInputParam extends InputParam {
 	height: number
 	pixelFormat: string
 	pixelAspect: Array<number>
-	hw_device_ctx: HWDeviceContext // Optional
-	swPixelFormat: string // Optional
+	hw_device_ctx?: HWDeviceContext // Optional
+	swPixelFormat?: string // Optional
 }
 /** The required parameters for setting up audio filter inputs */
 export interface AudioInputParam extends InputParam {