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http://ftp.x.org/contrib/applications/xscreensaver-3.26.tar.gz
[xscreensaver]
/
utils
/
sgivideo.c
diff --git
a/utils/sgivideo.c
b/utils/sgivideo.c
index 9fc0b781eacdc53af22fb36349858bcd5a9d572f..38b0c669e9b0a2249a717f20409652b4d3225d9c 100644
(file)
--- a/
utils/sgivideo.c
+++ b/
utils/sgivideo.c
@@
-318,13
+318,19
@@
grab_video_frame(Screen *screen, Visual *visual, Drawable dest)
{
int i;
VLServer server = vlOpenVideo (NULL);
{
int i;
VLServer server = vlOpenVideo (NULL);
+
+ if (!server) return False;
+
for (i = 0; i < 5; i++) /* if we get all black images, retry up to
five times. */
{
VLDevList dl;
int j;
for (i = 0; i < 5; i++) /* if we get all black images, retry up to
five times. */
{
VLDevList dl;
int j;
- vlGetDeviceList(server, &dl);
- vlCloseVideo(server);
+
+ j = vlGetDeviceList(server, &dl);
+ vlCloseVideo(server);
+ if (j < 0) return False;
+
for (j = 0; j < dl.numDevices; j++)
{
VLDevice *d = &dl.devices[j];
for (j = 0; j < dl.numDevices; j++)
{
VLDevice *d = &dl.devices[j];