fix: Handle API changes for scalable layers output in x265 4.0

Link: https://code.videolan.org/videolan/vlc/-/merge_requests/6167
Link: https://bitbucket.org/multicoreware/x265_git/commits/c69c113960834400545bc4bce2830ff51dcb86b3

src/drivers/Qt/AviRecord.cpp

@@ -461,7 +461,14 @@ static int encode_frame( unsigned char *inBuf, int width, int height )
 	pic->stride[1] = width/2;
 	pic->stride[2] = width/2;
 
+#ifdef MAX_SCALABLE_LAYERS
+	/* Handle API changes for scalable layers output in x265 4.0 */
+	x265_picture *pics[MAX_SCALABLE_LAYERS] = {NULL};
+	pics[0] = pic;
+	ret = x265_encoder_encode( hdl, &nal, &i_nal, pic, pics );
+#else
 	ret = x265_encoder_encode( hdl, &nal, &i_nal, pic, &pic_out );
+#endif
 
 	if ( ret <= 0 )
 	{
@@ -494,7 +501,14 @@ static int close(void)
 	/* Flush delayed frames */
 	while( hdl != NULL )
 	{
-	    ret = x265_encoder_encode( hdl, &nal, &i_nal, NULL, &pic_out );
+#ifdef MAX_SCALABLE_LAYERS
+	/* Handle API changes for scalable layers output in x265 4.0 */
+	x265_picture *pics[MAX_SCALABLE_LAYERS] = {NULL};
+	pics[0] = pic;
+	ret = x265_encoder_encode( hdl, &nal, &i_nal, pic, pics );
+#else
+	ret = x265_encoder_encode( hdl, &nal, &i_nal, pic, &pic_out );
+#endif
 
 	    if ( ret <= 0 )
 	    {