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-rw-r--r--libavformat/rtspenc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/rtspenc.c b/libavformat/rtspenc.c
index d76ae872eb..cc6e729e8c 100644
--- a/libavformat/rtspenc.c
+++ b/libavformat/rtspenc.c
@@ -51,7 +51,8 @@ int ff_rtsp_setup_output_streams(AVFormatContext *s, const char *addr)
char *sdp;
AVFormatContext sdp_ctx, *ctx_array[1];
- s->start_time_realtime = av_gettime();
+ if (s->start_time_realtime == 0 || s->start_time_realtime == AV_NOPTS_VALUE)
+ s->start_time_realtime = av_gettime();
/* Announce the stream */
sdp = av_mallocz(SDP_MAX_SIZE);