avutil/thread: fix strict_pthread_cond_timedwait

Timeout error was assumed to be fatal which it is not.
Signed-off-by: Marton Balint <cus@passwd.hu>

libavutil/thread.h

@@ -33,16 +33,19 @@
 
 #include "log.h"
 
-#define ASSERT_PTHREAD_NORET(func, ...) do {                            \
-    int ret = func(__VA_ARGS__);                                        \
-    if (ret) {                                                          \
+#define ASSERT_PTHREAD_ABORT(func, ret) do {                            \
     char errbuf[AV_ERROR_MAX_STRING_SIZE] = "";                         \
     av_log(NULL, AV_LOG_FATAL, AV_STRINGIFY(func)                       \
            " failed with error: %s\n",                                  \
            av_make_error_string(errbuf, AV_ERROR_MAX_STRING_SIZE,       \
                                 AVERROR(ret)));                         \
     abort();                                                            \
-    }                                                                   \
+} while (0)
+
+#define ASSERT_PTHREAD_NORET(func, ...) do {                            \
+    int ret = func(__VA_ARGS__);                                        \
+    if (ret)                                                            \
+        ASSERT_PTHREAD_ABORT(func, ret);                                \
 } while (0)
 
 #define ASSERT_PTHREAD(func, ...) do {                                  \
@@ -112,7 +115,10 @@ static inline int strict_pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t
 static inline int strict_pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
                                                 const struct timespec *abstime)
 {
-    ASSERT_PTHREAD(pthread_cond_timedwait, cond, mutex, abstime);
+    int ret = pthread_cond_timedwait(cond, mutex, abstime);
+    if (ret && ret != ETIMEDOUT)
+        ASSERT_PTHREAD_ABORT(pthread_cond_timedwait, ret);
+    return ret;
 }
 
 static inline int strict_pthread_once(pthread_once_t *once_control, void (*init_routine)(void))