diff --git a/linphone/mediastreamer2/src/videostream.c b/linphone/mediastreamer2/src/videostream.c
index 92faf54a9..34a9a0f8c 100644
--- a/linphone/mediastreamer2/src/videostream.c
+++ b/linphone/mediastreamer2/src/videostream.c
@@ -128,7 +128,7 @@ static void video_steam_process_rtcp(VideoStream *stream, mblk_t *m){
 				unsigned int ij;
 				float flost;
 				ij=report_block_get_interarrival_jitter(rb);
-				flost=100.0*report_block_get_fraction_lost(rb)/256.0;
+				flost=(float)(100.0*report_block_get_fraction_lost(rb)/256.0);
 				ms_message("interarrival jitter=%u , lost packets percentage since last report=%f ",ij,flost);
 				if (stream->adapt_bitrate) video_stream_adapt_bitrate(stream,ij,flost);
 			}
@@ -360,7 +360,7 @@ VideoStream * video_preview_start(MSWebCam *device, MSVideoSize disp_size){
 	VideoStream *stream = (VideoStream *)ms_new0 (VideoStream, 1);
 	MSVideoSize vsize=disp_size;
 	MSPixFmt format;
-	float fps=29.97;
+	float fps=(float)29.97;
 	int mirroring=1;
 
 	/* creates the filters */
diff --git a/linphone/mediastreamer2/src/winvideo2.c b/linphone/mediastreamer2/src/winvideo2.c
index a5ec16c4f..eb64ae2ae 100755
--- a/linphone/mediastreamer2/src/winvideo2.c
+++ b/linphone/mediastreamer2/src/winvideo2.c
@@ -366,11 +366,11 @@ static void vfw_process(MSFilter * obj){
 	int cur_frame;
 
 	if (s->frame_count==-1){
-		s->start_time=obj->ticker->time;
+		s->start_time=(float)obj->ticker->time;
 		s->frame_count=0;
 	}
 
-	cur_frame=((obj->ticker->time-s->start_time)*s->fps/1000.0);
+	cur_frame=(int)((obj->ticker->time-s->start_time)*s->fps/1000.0);
 	if (cur_frame>s->frame_count){
 		mblk_t *om=NULL;
 		/*keep the most recent frame if several frames have been captured */
@@ -385,7 +385,7 @@ static void vfw_process(MSFilter * obj){
 			ms_mutex_unlock(&s->mutex);
 		}
 		if (om!=NULL){
-			timestamp=obj->ticker->time*90;/* rtp uses a 90000 Hz clockrate for video*/
+			timestamp=(uint32_t)(obj->ticker->time*90);/* rtp uses a 90000 Hz clockrate for video*/
 			mblk_set_timestamp_info(om,timestamp);
 			ms_queue_put(obj->outputs[0],om);
 		}