Added some stubs.

dlls/avifil32/api.c

@@ -835,6 +835,26 @@ HRESULT WINAPI AVIStreamOpenFromFileW(PAVISTREAM *ppavi, LPCWSTR szFile,
 }
 
 /***********************************************************************
+ *		AVIStreamBeginStreaming	(AVIFIL32.@)
+ */
+LONG WINAPI AVIStreamBeginStreaming(PAVISTREAM pavi, LONG lStart, LONG lEnd, LONG lRate)
+{
+  FIXME("(%p)->(%ld,%ld,%ld)\n", pavi, lStart, lEnd, lRate);
+
+  return AVIERR_OK;
+}
+
+/***********************************************************************
+ *		AVIStreamEndStreaming	(AVIFIL32.@)
+ */
+LONG WINAPI AVIStreamEndStreaming(PAVISTREAM pavi)
+{
+  FIXME("(%p)\n", pavi);
+
+  return AVIERR_OK;
+}
+
+/***********************************************************************
  *		AVIStreamStart		(AVIFILE.130)
  *		AVIStreamStart		(AVIFIL32.@)
  */

dlls/avifil32/avifil32.spec

@@ -33,9 +33,9 @@
 @ stdcall AVISaveVW(wstr ptr ptr long ptr ptr)
 @ stub    AVISaveW
 @ stdcall AVIStreamAddRef(ptr)
-@ stub    AVIStreamBeginStreaming
+@ stdcall AVIStreamBeginStreaming(ptr long long long)
 @ stdcall AVIStreamCreate(ptr long long ptr)
-@ stub    AVIStreamEndStreaming
+@ stdcall AVIStreamEndStreaming(ptr) 
 @ stdcall AVIStreamFindSample(ptr long long)
 @ stdcall AVIStreamGetFrame(ptr long)
 @ stdcall AVIStreamGetFrameClose(ptr)