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Do not hang forever when the card delivers no new data.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16963 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar
2005-11-10 20:32:47 +00:00
parent 0a85f24278
commit cf440b521e
1 changed files with 4 additions and 0 deletions
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libmpdemux/tvi_v4l2.c
+4
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@@ -1360,6 +1360,7 @@ static void *video_grabber(void *data)
priv_t *priv = (priv_t*)data;
long long skew, prev_skew, xskew, interval, prev_interval, delta;
int i;
int err_count = 0;
int framesize = priv->format.fmt.pix.height*priv->format.fmt.pix.width*
pixfmt2depth(priv->format.fmt.pix.pixelformat)/8;
fd_set rdset;
@@ -1546,9 +1547,11 @@ static void *video_grabber(void *data)
return NULL;
}
#define MAX_LOOP 50
static double grab_video_frame(priv_t *priv, char *buffer, int len)
{
double interval;
int loop_cnt = 0;
if (priv->first) {
pthread_create(&priv->video_grabber_thread, NULL, video_grabber, priv);
@@ -1557,6 +1560,7 @@ static double grab_video_frame(priv_t *priv, char *buffer, int len)
while (priv->video_cnt == 0) {
usleep(10000);
if (loop_cnt++ > MAX_LOOP) return 0;
}
pthread_mutex_lock(&priv->video_buffer_mutex);