use software decoding for mpeg4 part2 with nvidia accel (#1229)

CHANGELOG.md

@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix local show library scanning with non-english season folder names, e.g. `Staffel 02`
 - Fix bug where local libraries would merge with media server libraries when the same file was added to both libraries
 - Fix transcoding some 10-bit content from media servers using VAAPI acceleration
+- Fix decoding of MPEG-4 Part 2 (e.g. DivX) content using NVIDIA acceleration
 
 ### Changed
 - Use Poster artwork for XMLTV if available

ErsatzTV.FFmpeg/Capabilities/NvidiaHardwareCapabilities.cs

@@ -45,7 +45,8 @@ public class NvidiaHardwareCapabilities : IHardwareCapabilities
             
             VideoFormat.Vc1 => true,
             
-            VideoFormat.Mpeg4 => true,
+            // too many issues with odd mpeg4 content, so use software
+            VideoFormat.Mpeg4 => false,
             
             // ampere is required for av1 decoding
             VideoFormat.Av1 => _architecture >= 86,