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authorClément Bœsch <u@pkh.me>2018-04-21 21:42:19 +0200
committerClément Bœsch <u@pkh.me>2018-04-26 19:41:19 +0200
commit71fa82bed62f812d30aee26f3c6385e2ec890ebb (patch)
treec31086aa145158b69342c779a9e174dccb741e43 /libavutil/threadmessage.c
parent02e4970bc9d3215f862a5d64ec48922d98eb17c1 (diff)
downloadffmpeg-71fa82bed62f812d30aee26f3c6385e2ec890ebb.tar.gz
lavu/threadmessage: add av_thread_message_queue_nb_elems()
Diffstat (limited to 'libavutil/threadmessage.c')
-rw-r--r--libavutil/threadmessage.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/libavutil/threadmessage.c b/libavutil/threadmessage.c
index 872e9392b1..764b7fb813 100644
--- a/libavutil/threadmessage.c
+++ b/libavutil/threadmessage.c
@@ -102,6 +102,19 @@ void av_thread_message_queue_free(AVThreadMessageQueue **mq)
#endif
}
+int av_thread_message_queue_nb_elems(AVThreadMessageQueue *mq)
+{
+#if HAVE_THREADS
+ int ret;
+ pthread_mutex_lock(&mq->lock);
+ ret = av_fifo_size(mq->fifo);
+ pthread_mutex_unlock(&mq->lock);
+ return ret / mq->elsize;
+#else
+ return AVERROR(ENOSYS);
+#endif
+}
+
#if HAVE_THREADS
static int av_thread_message_queue_send_locked(AVThreadMessageQueue *mq,