msdk: add a helper function to get codename of the platform

The features supported in MSDK vary from platform to platform. We may
support some features based on the codename of the platform in future.

diff --git a/sys/msdk/msdk.c b/sys/msdk/msdk.c
index bffdcda..bc560bc 100644 (file)
--- a/sys/msdk/msdk.c
+++ b/sys/msdk/msdk.c
@@ -148,6 +148,24 @@ msdk_status_to_string (mfxStatus status)
   return "undefined error";
 }
 
+mfxU16
+msdk_get_platform_codename (mfxSession session)
+{
+  mfxU16 codename = MFX_PLATFORM_UNKNOWN;
+
+#if (MFX_VERSION >= 1019)
+  {
+    mfxStatus status;
+    mfxPlatform platform = { 0 };
+    status = MFXVideoCORE_QueryPlatform (session, &platform);
+    if (MFX_ERR_NONE == status)
+      codename = platform.CodeName;
+  }
+#endif
+
+  return codename;
+}
+
 void
 msdk_close_session (mfxSession session)
 {
@@ -169,6 +187,7 @@ msdk_open_session (mfxIMPL impl)
   };
   mfxIMPL implementation;
   mfxStatus status;
+  mfxU16 codename;
 
   static const gchar *implementation_names[] = {
     "AUTO", "SOFTWARE", "HARDWARE", "AUTO_ANY", "HARDWARE_ANY", "HARDWARE2",
@@ -194,17 +213,13 @@ msdk_open_session (mfxIMPL impl)
     GST_ERROR ("Query version failed (%s)", msdk_status_to_string (status));
     goto failed;
   }
-#if (MFX_VERSION >= 1019)
-  {
-    mfxPlatform platform = { 0 };
-    status = MFXVideoCORE_QueryPlatform (session, &platform);
-    if (MFX_ERR_NONE == status) {
-      GST_INFO ("Detected MFX platform with device code %d", platform.CodeName);
-    } else {
-      GST_WARNING ("Platform auto-detection failed with MFX status %d", status);
-    }
-  }
-#endif
+
+  codename = msdk_get_platform_codename (session);
+
+  if (codename != MFX_PLATFORM_UNKNOWN)
+    GST_INFO ("Detected MFX platform with device code %d", codename);
+  else
+    GST_WARNING ("Unknown MFX platform");
 
   GST_INFO ("MFX implementation: 0x%04x (%s)", implementation,
       implementation_names[MFX_IMPL_BASETYPE (implementation)]);

diff --git a/sys/msdk/msdk.h b/sys/msdk/msdk.h
index 8483847..87867f6 100644 (file)
--- a/sys/msdk/msdk.h
+++ b/sys/msdk/msdk.h
@@ -104,6 +104,9 @@ gboolean
 gst_msdk_load_plugin (mfxSession session, const mfxPluginUID * uid,
     mfxU32 version, const gchar * plugin);
 
+mfxU16
+msdk_get_platform_codename (mfxSession session);
+
 G_END_DECLS
 
 #endif /* __MSDK_H__ */