From 1ebcf32998127e4c53c52688ceed663c8ddf88ce Mon Sep 17 00:00:00 2001
From: Koushik Dutta <koushd@gmail.com>
Date: Fri, 26 May 2023 14:16:50 -0700
Subject: [PATCH] python-codecs: fix vaapi gray output

---
 plugins/python-codecs/package-lock.json            |  4 ++--
 plugins/python-codecs/package.json                 |  2 +-
 plugins/python-codecs/src/gstreamer_postprocess.py | 10 ++++++++--
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/plugins/python-codecs/package-lock.json b/plugins/python-codecs/package-lock.json
index 6b9d35730..13faa1d17 100644
--- a/plugins/python-codecs/package-lock.json
+++ b/plugins/python-codecs/package-lock.json
@@ -1,12 +1,12 @@
 {
    "name": "@scrypted/python-codecs",
-   "version": "0.1.63",
+   "version": "0.1.64",
    "lockfileVersion": 3,
    "requires": true,
    "packages": {
       "": {
          "name": "@scrypted/python-codecs",
-         "version": "0.1.63",
+         "version": "0.1.64",
          "devDependencies": {
             "@scrypted/sdk": "file:../../sdk"
          }
diff --git a/plugins/python-codecs/package.json b/plugins/python-codecs/package.json
index bbd8efa34..a976bff8f 100644
--- a/plugins/python-codecs/package.json
+++ b/plugins/python-codecs/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@scrypted/python-codecs",
-   "version": "0.1.63",
+   "version": "0.1.64",
    "description": "Python Codecs for Scrypted",
    "keywords": [
       "scrypted",
diff --git a/plugins/python-codecs/src/gstreamer_postprocess.py b/plugins/python-codecs/src/gstreamer_postprocess.py
index 41dc4e25e..786464990 100644
--- a/plugins/python-codecs/src/gstreamer_postprocess.py
+++ b/plugins/python-codecs/src/gstreamer_postprocess.py
@@ -172,8 +172,14 @@ class VaapiPostProcess():
         vaapipostproc.set_property('height', outputHeight)
 
         # not sure vaapi supports non-rgba across all hardware...
-        # (11): rgba             - GST_VIDEO_FORMAT_RGBA
-        vaapipostproc.set_property('format', 11)
+        # GST_VIDEO_FORMAT_RGBA (11) – rgb with alpha channel last
+        # GST_VIDEO_FORMAT_GRAY8 (25) – 8-bit grayscale
+
+        format = toCapsFormat(options)
+        if format == 'GRAY8':
+            vaapipostproc.set_property('format', 25)
+        else:
+            vaapipostproc.set_property('format', 11)
 
         if crop:
             left = int(crop['left'])