add audo detection node

__init__.py

@@ -1,7 +1,8 @@
 from .predefined_resolution_node import NODE_CLASS_MAPPINGS as RESOLUTION_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS as RESOLUTION_DISPLAY_MAPPINGS
 from .none_constant_node import NODE_CLASS_MAPPINGS as NONE_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS as NONE_DISPLAY_MAPPINGS
+from .video_has_audio_node import NODE_CLASS_MAPPINGS as VIDEO_AUDIO_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS as VIDEO_AUDIO_DISPLAY_MAPPINGS
 
-NODE_CLASS_MAPPINGS = {**RESOLUTION_MAPPINGS, **NONE_MAPPINGS}
-NODE_DISPLAY_NAME_MAPPINGS = {**RESOLUTION_DISPLAY_MAPPINGS, **NONE_DISPLAY_MAPPINGS}
+NODE_CLASS_MAPPINGS = {**RESOLUTION_MAPPINGS, **NONE_MAPPINGS, **VIDEO_AUDIO_MAPPINGS}
+NODE_DISPLAY_NAME_MAPPINGS = {**RESOLUTION_DISPLAY_MAPPINGS, **NONE_DISPLAY_MAPPINGS, **VIDEO_AUDIO_DISPLAY_MAPPINGS}
 
 __all__ = ['NODE_CLASS_MAPPINGS', 'NODE_DISPLAY_NAME_MAPPINGS']

video_has_audio_node.py

@@ -0,0 +1,77 @@
+import subprocess
+import json
+import shutil
+
+
+class VideoHasAudioNode:
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "input_file": ("STRING", {
+                    "default": "",
+                    "multiline": False,
+                    "forceInput": False
+                }),
+            }
+        }
+
+    RETURN_TYPES = ("BOOLEAN", "INT")
+    RETURN_NAMES = ("has_audio", "int_value")
+    FUNCTION = "detect_audio"
+    CATEGORY = "utils"
+
+    @classmethod
+    def IS_CHANGED(cls, input_file):
+        return input_file
+
+    def detect_audio(self, input_file):
+        has_audio = self._probe_has_audio(input_file)
+        return (has_audio, 1 if has_audio else 0)
+
+    def _probe_has_audio(self, input_file):
+        if not input_file or not input_file.strip():
+            return False
+
+        ffprobe = shutil.which("ffprobe") or "ffprobe"
+        cmd = [
+            ffprobe,
+            "-v", "error",
+            "-select_streams", "a",
+            "-show_entries", "stream=index",
+            "-of", "json",
+            input_file,
+        ]
+
+        try:
+            result = subprocess.run(
+                cmd,
+                capture_output=True,
+                text=True,
+                check=True,
+            )
+        except FileNotFoundError:
+            raise RuntimeError(
+                "ffprobe not found. Please install ffmpeg and ensure ffprobe is on PATH."
+            )
+        except subprocess.CalledProcessError as e:
+            raise RuntimeError(
+                f"ffprobe failed for '{input_file}': {e.stderr.strip()}"
+            )
+
+        try:
+            data = json.loads(result.stdout or "{}")
+        except json.JSONDecodeError:
+            return False
+
+        streams = data.get("streams") or []
+        return len(streams) > 0
+
+
+NODE_CLASS_MAPPINGS = {
+    "VideoHasAudio": VideoHasAudioNode
+}
+
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "VideoHasAudio": "Video Has Audio"
+}