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-rw-r--r--libmpcodecs/dec_teletext.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/libmpcodecs/dec_teletext.c b/libmpcodecs/dec_teletext.c
index 446f2ed0f6..e676990a02 100644
--- a/libmpcodecs/dec_teletext.c
+++ b/libmpcodecs/dec_teletext.c
@@ -88,7 +88,16 @@
#include <math.h>
#include <stdio.h>
+#ifdef HAVE_PTHREADS
+// pthreads are needed for async updates from v4l(2)
+// FIXME: try to avoid using pthread calls when running only a single
+// thread as e.g. with DVB teletext
#include <pthread.h>
+#else
+#define pthread_mutex_init(m, p)
+#define pthread_mutex_lock(m)
+#define pthread_mutex_unlock(m)
+#endif
#include "dec_teletext.h"
#include "mp_msg.h"
@@ -138,7 +147,9 @@ typedef struct {
int pll_fixed;
/// vbi stream properties (buffer size,bytes per line, etc)
tt_stream_props* ptsp;
+#ifdef HAVE_PTHREADS
pthread_mutex_t buffer_mutex;
+#endif
tt_page** ptt_cache;
unsigned char* ptt_cache_first_subpage;