[FFmpeg-cvslog] ffplay: reset external clock to unknown on start

[Marton Balint]

ffmpeg | branch: master | Marton Balint <cus at passwd.hu> | Fri Dec 21 00:32:18 2012 +0100| [0ca4e9f014839ce26a3975e67a32c36b289d8801] | committer: Marton Balint

ffplay: reset external clock to unknown on start

Fixes a delay and initial frame drops on starting realtime streams with
external clock.

Signed-off-by: Marton Balint <cus at passwd.hu>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0ca4e9f014839ce26a3975e67a32c36b289d8801
---

 ffplay.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ffplay.c b/ffplay.c
index f9ea20d..5f4f111 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -2835,7 +2835,8 @@ static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
 
     is->continue_read_thread = SDL_CreateCond();
 
-    update_external_clock_pts(is, 0.0);
+    //FIXME: use a cleaner way to signal obsolete external clock...
+    update_external_clock_pts(is, (double)AV_NOPTS_VALUE);
     update_external_clock_speed(is, 1.0);
     is->audio_current_pts_drift = -av_gettime() / 1000000.0;
     is->video_current_pts_drift = is->audio_current_pts_drift;