[FFmpeg-devel] [PATCH 2/5] ffplay: reset external clock to unknown on start

Marton Balint cus at passwd.hu
Wed Dec 26 00:46:21 CET 2012


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

Signed-off-by: Marton Balint <cus at passwd.hu>
---
 ffplay.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ffplay.c b/ffplay.c
index 070fbd7..07275a2 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;
-- 
1.7.10.4



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