[FFmpeg-trac] #5125(undetermined:new): mpg frames flick

[FFmpeg]

#5125: mpg frames flick
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             Reporter:  rhbc73       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by rhbc73):

 Replying to [comment:2 cehoyos]:
 > I tested the following:
 > {{{
 > $ ffplay -autoexit a30.mpg
 > ffplay version N-77711-gc3c22be Copyright (c) 2003-2016 the FFmpeg
 developers
 >   built with gcc 4.7 (SUSE Linux)
 >   configuration: --enable-gpl
 >   libavutil      55. 12.100 / 55. 12.100
 >   libavcodec     57. 21.100 / 57. 21.100
 >   libavformat    57. 21.101 / 57. 21.101
 >   libavdevice    57.  0.100 / 57.  0.100
 >   libavfilter     6. 23.100 /  6. 23.100
 >   libswscale      4.  0.100 /  4.  0.100
 >   libswresample   2.  0.101 /  2.  0.101
 >   libpostproc    54.  0.100 / 54.  0.100
 > [NULL @ 0x7fd7b8001dc0] start time for stream 0 is not set in
 estimate_timings_from_pts
 > Input #0, mpeg, from 'a30.mpg':
 >   Duration: 00:00:29.96, start: 0.540000, bitrate: 2938 kb/s
 >     Stream #0:0[0x1bf]: Data: dvd_nav_packet
 >     Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv), 720x576
 [SAR 1:1 DAR 5:4], max. 9000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
 >   30.50 M-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
 > }}}
 > While I don't understand the word ''flick'' I didn't see anything out of
 the ordinary (just a static image), please elaborate!

 Hi,

 Please just play https://dl.dropboxusercontent.com/u/89678527/a30.mpg
 using ffplay in full screen mode. Ideally, you should see "still" playback
 - because each frame is same. But actually you can see (especially at the
 low part of screen) some scene change (small difference between frames),
 you can see the changes several times per second!

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Ticket URL: <https://trac.ffmpeg.org/ticket/5125#comment:3>
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