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-rw-r--r--common/av_log.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/common/av_log.c b/common/av_log.c
index 0dbda72866..5ae8f13263 100644
--- a/common/av_log.c
+++ b/common/av_log.c
@@ -134,8 +134,9 @@ static void mp_msg_av_log_callback(void *ptr, int level, const char *fmt,
struct mp_log *log = get_av_log(ptr);
if (mp_msg_test(log, mp_level)) {
- if (log_print_prefix)
- mp_msg(log, mp_level, "%s: ", avc ? avc->item_name(ptr) : "?");
+ const char *prefix = avc ? avc->item_name(ptr) : NULL;
+ if (log_print_prefix && prefix)
+ mp_msg(log, mp_level, "%s: ", prefix);
log_print_prefix = fmt[strlen(fmt) - 1] == '\n';
mp_msg_va(log, mp_level, fmt, vl);