[FFmpeg-trac] #7776(undetermined:new): ffplay -autoexit -t 5 not working with large I-frame interval input video

FFmpeg trac at avcodec.org
Fri Mar 8 19:22:48 EET 2019

#7776: ffplay -autoexit -t 5 not working with large I-frame interval input video
             Reporter:  JouMxyzptlk  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  minor        |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  autoexit     |               Blocked By:
  miss exit                          |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by JouMxyzptlk):

 In the youtube video I hit ESC after five seconds to exit the video.
 You can see the last line jumping around the values until "A-V: -4.354":
 4.99 A-V: -4.354 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0
 It is counting the negative time up.

 I rechecked right not: It is still doing that strange thing, but only for
 less than a half second now instead of forever. On the same machine, not
 even a reboot.
 "A-V:" is between -0.282 and -0.341 when ffplay exits. Shouldn't that
 always be the same?

 It never exited that testing video four hours ago when I tested before
 creating the bug and creating the video. I saw the "A-V:" go below -30
 seconds until I hit ESC.
 Since I saw many reports about that I thought I had the actual reason
 since I had a difference between keyframe intervals up to 240 videos and
 others with smaller keyframe intervals.

 This bug seems to be weird. I bet it will happen again.

Ticket URL: <https://trac.ffmpeg.org/ticket/7776#comment:2>
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