[FFmpeg-trac] #4869(undetermined:new): Capture with error msg: Application provided invalid, non monotonically increasing

[FFmpeg]

#4869: Capture with error msg: Application provided invalid, non monotonically
increasing
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             Reporter:  MrNice       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug: I try to capture from a S-VHS player and Dazzle
 DVC100, audio directly connected from the player to the input line of the
 integrated audio card.

 When I run the command I get the following pattern:
 -Error message in red
 Application provided invalid, non monotonically increasing dts to muxer in
 stream 0:
 Then a frame is dropped
 Then I get a lot of warning messages in yellow
 Past duration 0.xxxxxx too large
 where 0.xxxxxx increase from 0.6xxxx to 0.9xxxx
 Then stop

 To test more accurately, I removed the tape from the player and got a
 blue, still image with the program number wrote in white. This still image
 is very stable, no static.

 When I run the command to capture the still image I get the above pattern
 at regular time.
 See the first log

 Then I removed the last part of the command
 -aspect 4:3 -f sdl "Dazzle output"
 I get the above pattern WITHOUT the error message in red but still with
 the warning and frame drop.
 See the second log

 When I remove all related to audio (input / output) the error is still
 present.

 How to reproduce:
 ./ffmpeg -report -f pulse -ar 44100 -ac 2 -channel_layout stereo
 -thread_queue_size 512 -itsoffset -0.20 -i alsa_input.pci-0000_00_14.2
 .analog-stereo -f v4l2 -ts mono2abs -channel 1 -video_size 720x576
 -pix_fmt yuyv422 -thread_queue_size 512 -i /dev/video0 -c:v ffv1 -level 3
 -aspect 4:3 -pix_fmt yuv422p -c:a pcm_s16le /Store3/Test/t_`date
 +%Y%m%d_%H%M`.mkv -aspect 4:3 -f sdl "Dazzle output"

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Ticket URL: <https://trac.ffmpeg.org/ticket/4869>
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