spice: server: avoid video streaming of small images

I added a lower limit to the size of images that are being streamed.
The limit is only active in "filter" video streaming mode.
This will prevent blurry animated icons.

1 files changed, 12 insertions, 0 deletions

diff --git a/server/red_worker.c b/server/red_worker.c
index d4f9743e..9ef84a65 100644
--- a/server/red_worker.c
+++ b/server/red_worker.c
@@ -76,6 +76,7 @@
 #define RED_STREAM_FRAMES_START_CONDITION 20
 #define RED_STREAM_GRADUAL_FRAMES_START_CONDITION 0.2
 #define RED_STREAM_FRAMES_RESET_CONDITION 100
+#define RED_STREAM_MIN_SIZE (96 * 96)
 
 #define FPS_TEST_INTERVAL 1
 #define MAX_FPS 30
@@ -3460,6 +3461,17 @@ static inline void red_update_streamable(RedWorker *worker, Drawable *drawable,
         return;
     }
 
+    if (worker->streaming_video == STREAM_VIDEO_FILTER) {
+        SpiceRect* rect;
+        int size;
+
+        rect = &drawable->qxl_drawable->u.copy.src_area;
+        size = (rect->right - rect->left) * (rect->bottom - rect->top);
+        if (size < RED_STREAM_MIN_SIZE) {
+            return;
+        }
+    }
+
     drawable->streamable = TRUE;
 }