[FFmpeg-trac] #8982(undetermined:new): Video Sync Support

[FFmpeg]

#8982: Video Sync Support
-------------------------------------+-------------------------------------
             Reporter:  villmer      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  important    |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  Stereo, 3d,  |               Blocked By:
  360, synchronize                   |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by villmer):

 The following code above produces the following:

 Input #0, video4linux2,v4l2, from '/dev/video0':
 y_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250
 keyint_min=20 scenec
 ut=0 intra_refresh=0 rc=abr mbtree=0 bitrate=2000 ratetol=1.0 qcomp=0.60
 qpmin=0 q
 pmax=69 qpstep=4 ip_ratio=1.40 aq=0
 Output #0, mp4, to 'video.mp4':
   Metadata:
     encoder         : Lavf58.20.100
     Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
 2048x1024, q=
 -1--1, 2000 kb/s, 20 fps, 10240 tbn, 20 tbc (default)
     Metadata:
       encoder         : Lavc58.35.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 0 vbv_delay: -1
 [libx264 @ 0xa8fd00] non-strictly-monotonic PTS
 [mp4 @ 0xa8f3d0] Non-monotonous DTS in output stream 0:0; previous: 0,
 current: 0;
  changing to 1. This may result in incorrect timestamps in the output
 file.
 frame=   11 fps=0.0 q=29.0 size=       0kB time=00:00:00.10 bitrate=
 3.8kbits/s
 frame=   25 fps= 23 q=26.0 size=       0kB time=00:00:00.80 bitrate=
 0.5kbits/s
 frame=   35 fps= 22 q=24.0 size=     256kB time=00:00:01.30
 bitrate=1613.4kbits/s
 frame=   45 fps= 21 q=25.0 size=     256kB time=00:00:01.80
 bitrate=1165.2kbits/s
 frame=   49 fps= 20 q=-1.0 Lsize=     505kB time=00:00:02.35
 bitrate=1759.0kbits/s
  speed=0.971x
 video:504kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing ove
 rhead: 0.199724%
 [libx264 @ 0xa8fd00] frame I:1     Avg QP:36.00  size: 20426
 [libx264 @ 0xa8fd00] frame P:48    Avg QP:26.79  size: 10306
 [libx264 @ 0xa8fd00] mb I  I16..4: 100.0%  0.0%  0.0%
 [libx264 @ 0xa8fd00] mb P  I16..4:  3.9%  0.0%  0.0%  P16..4: 21.1%  0.0%
 0.0%  0
 .0%  0.0%    skip:75.0%
 [libx264 @ 0xa8fd00] final ratefactor: 27.71
 [libx264 @ 0xa8fd00] coded y,uvDC,uvAC intra: 10.7% 27.0% 1.4% inter: 7.6%
 10.0% 0
 .2%
 [libx264 @ 0xa8fd00] i16 v,h,dc,p: 51% 22% 12% 15%
 [libx264 @ 0xa8fd00] i8c dc,h,v,p: 60% 20% 14%  5%
 [libx264 @ 0xa8fd00] kb/s:1716.99
 Exiting normally, received signal 2.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8982#comment:5>
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