Detect: Checkpoint untested Windows GPU detection

ffmpeg/_detect.py

@@ -54,6 +54,8 @@ HWACCEL_OUTPUT_FORMATS = {
     'vaapi': 'vaapi'}
 
 GPU_PRODUCT_RE = re.compile(r'(?P<chip>[^[]+)(\[(?P<board>[^]]+)\]|)')
+GPU_WMI_PROPERTIES = dict(
+    vendor='AdapterCompatibility', board='VideoProcessor')
 
 # Loaded from JSON
 DATA = None
@@ -86,6 +88,17 @@ def detect_gpus():
                 if not gpu['board']:
                     gpu['board'] = gpu.pop('chip')
 
+    elif plat_sys == 'Windows':
+        import wmi
+        for controller in wmi.WMI().Win32_VideoController():
+            gpu = {}
+            for key, wmi_prop in GPU_WMI_PROPERTIES.items():
+                value = controller.wmi_property(wmi_prop).value
+                if value:
+                    gpu[key] = value
+            if gpu:
+                gpus.append(gpu)
+
     else:
         # TODO Other platforms
         raise NotImplementedError(

setup.py

@@ -72,6 +72,9 @@ setup(
     long_description=long_description,
     install_requires=['future'],
     extras_require={
+        'detect': [
+            "pywin32; sys_platform == 'Windows'",
+            "wmi; sys_platform == 'Windows'"],
         'dev': [
             'future==0.17.1',
             'numpy==1.16.4',