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ffplay: add delay multiple times to frame_timer if it is less than current time

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If the picture queue is empty, or when the calculated delay is 0, frame_timer
is not increased but we are still displaying the old frame. When we eventually
get a frame, where the computed delay is positive, so we don't need to drop any
more frames, then it is best to update frame_timer to be as near as the current
time as it can.

This way we dont't have to wait several frames to add the necesarry delays to
frame_timer to reach current time, therefore there are no extra frame drops
after reaching a positive delay.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2011-10-09 16:52:28 +02:00
parent d2d8e1e599
commit abb0e4f637
1 changed files with 2 additions and 1 deletions
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3
ffplay.c
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@ -1142,7 +1142,8 @@ retry:
return; return;
is->frame_last_pts = vp->pts; is->frame_last_pts = vp->pts;
is->frame_timer += delay; if (delay > 0)
is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
/* update current video pts */ /* update current video pts */
is->video_current_pts = vp->pts; is->video_current_pts = vp->pts;