python-codecs: use non hw accelerated h265 by default

plugins/python-codecs/src/gstreamer.py

@@ -316,6 +316,7 @@ async def generateVideoFramesGstreamer(
     options: scrypted_sdk.VideoFrameGeneratorOptions = None,
     filter: Any = None,
     h264Decoder: str = None,
+    h265Decoder: str = None,
     postProcessPipeline: str = None,
 ) -> scrypted_sdk.VideoFrame:
     ffmpegInput: scrypted_sdk.FFmpegInput = (
@@ -367,6 +368,17 @@ async def generateVideoFramesGstreamer(
                 decoder = "vtdec_hw"
             else:
                 decoder = "avdec_h264 output-corrupt=false"
+    elif videoCodec == "h265":
+        setDecoderClearDefault(h265Decoder)
+
+        if not decoder:
+            # hw acceleration is "safe" to use on mac, but not
+            # on other hosts where it may crash.
+            # defaults must be safe.
+            if platform.system() == "Darwin":
+                decoder = "vtdec_hw"
+            else:
+                decoder = "avdec_h265 output-corrupt=false"
     else:
         # decodebin may pick a hardware accelerated decoder, which isn't ideal
         # so use a known software decoder for h264 and decodebin for anything else.

plugins/python-codecs/src/main.py

@@ -62,6 +62,7 @@ class GstreamerGenerator(
             options,
             filter,
             self.storage.getItem("h264Decoder"),
+            self.storage.getItem("h265Decoder"),
             self.storage.getItem("postProcessPipeline"),
         )
 
@@ -81,6 +82,20 @@ class GstreamerGenerator(
                 ],
                 "combobox": True,
             },
+            {
+                "key": "h265Decoder",
+                "title": "H25 Decoder",
+                "description": "The Gstreamer pipeline to use to decode H265 video.",
+                "value": self.storage.getItem("h265Decoder") or "Default",
+                "choices": [
+                    "Default",
+                    "decodebin",
+                    "vtdec_hw",
+                    "nvh265dec",
+                    "vaapih265dec",
+                ],
+                "combobox": True,
+            },
             {
                 "key": "postProcessPipeline",
                 "title": "Post Process Pipeline",
@@ -229,11 +244,12 @@ class CodecFork:
         options: scrypted_sdk.VideoFrameGeneratorOptions,
         filter: Any,
         h264Decoder: str,
+        h265Decoder: str,
         postProcessPipeline: str,
     ) -> scrypted_sdk.VideoFrame:
         async for data in self.generateVideoFrames(
             gstreamer.generateVideoFramesGstreamer(
-                mediaObject, options, filter, h264Decoder, postProcessPipeline
+                mediaObject, options, filter, h264Decoder, h265Decoder, postProcessPipeline
             ),
             "gstreamer",
             options and options.get("firstFrameOnly"),