ffmpeg: init simple filter graph before trying to extract framerate from its output.

[ffmpeg] / libavformat / udp.c

diff --git a/libavformat/udp.c b/libavformat/udp.c
index 5b5c7cb7dfc1aed3f71ea0c3e980be54757d3c62..bd7665ef740d28fd6fbb2f079eaaca89df9e87b2 100644 (file)
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -41,6 +41,10 @@
 #include <pthread.h>
 #endif
 
+#ifndef HAVE_PTHREAD_CANCEL
+#define HAVE_PTHREAD_CANCEL 0
+#endif
+
 #ifndef IPV6_ADD_MEMBERSHIP
 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
 #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
@@ -496,6 +500,10 @@ static int udp_open(URLContext *h, const char *uri, int flags)
             /* assume if no digits were found it is a request to enable it */
             if (buf == endptr)
                 s->overrun_nonfatal = 1;
+            if (!HAVE_PTHREAD_CANCEL)
+                av_log(h, AV_LOG_WARNING,
+                       "'overrun_nonfatal' option was set but it is not supported "
+                       "on this build (pthread support is required)\n");
         }
         if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
             s->ttl = strtol(buf, NULL, 10);
@@ -514,6 +522,10 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         }
         if (av_find_info_tag(buf, sizeof(buf), "fifo_size", p)) {
             s->circular_buffer_size = strtol(buf, NULL, 10)*188;
+            if (!HAVE_PTHREAD_CANCEL)
+                av_log(h, AV_LOG_WARNING,
+                       "'circular_buffer_size' option was set but it is not supported "
+                       "on this build (pthread support is required)\n");
         }
         if (av_find_info_tag(buf, sizeof(buf), "localaddr", p)) {
             av_strlcpy(localaddr, buf, sizeof(localaddr));