[FFmpeg-trac] #7458(ffmpeg:new): Can't concatenate the single list fragment of videos

[FFmpeg]

#7458: Can't concatenate the single list fragment of videos
--------------------------------+--------------------------------------
             Reporter:  RmBeer  |                     Type:  defect
               Status:  new     |                 Priority:  important
            Component:  ffmpeg  |                  Version:  git-master
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
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 VIDEOS:
 https://ptpb.pw/7N0K.xz - rename to comp.tar.xz

 TEXT FILE cconct.txt:
 file fr1b.mp4
 file fr2.mp4
 file fr3b.mp4
 file fr4b.mp4
 file fr5b.mp4
 file fr6b.mp4
 file fr7b.mp4
 file fr8b.mp4
 file fr9b.mp4

 COMMAND:
 ffmpeg -f concat -safe 0 -i cconct.txt caca.mp4

 RESULT:
 Something videos is cut in other different times, and fill the rest of
 times with the last frame.

 COMMAND:
 ffmpeg -i fr1b.mp4 -i fr2.mp4 -i fr3b.mp4 -i fr4b.mp4 -i fr5b.mp4 -i
 fr6b.mp4 -i fr7b.mp4 -i fr8b.mp4 -i fr9b.mp4 -filter_complex '[0:0] [0:0]
 [0:0] [0:0] [0:0] [0:0] [0:0] [0:0] [0:0] concat=n=9' caca.mp4

 RESULT:
 frame=  139 fps=0.0 q=29.0 size=       0kB time=00:00:02.86 bitrate=
 0.1kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 335 times
 frame=  298 fps=296 q=29.0 size=       0kB time=00:00:08.16 bitrate=
 0.0kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1343 times
 frame=  466 fps=308 q=29.0 size=     256kB time=00:00:13.76 bitrate=
 152.4kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1319 times
 frame=  631 fps=314 q=29.0 size=     256kB time=00:00:19.26 bitrate=
 108.9kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1303 times
 frame=  794 fps=316 q=29.0 size=     256kB time=00:00:24.70 bitrate=
 84.9kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1311 times
 frame=  958 fps=318 q=29.0 size=     512kB time=00:00:30.16 bitrate=
 139.1kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1287 times
 frame= 1119 fps=318 q=29.0 size=     512kB time=00:00:35.53 bitrate=
 118.0kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1335 times
 frame= 1286 fps=320 q=29.0 size=     512kB time=00:00:41.10 bitrate=
 102.1kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1351 times
 frame= 1455 fps=322 q=29.0 size=     768kB time=00:00:46.73 bitrate=
 134.6kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 1327 times
 frame= 1621 fps=322 q=29.0 size=     768kB time=00:00:52.26 bitrate=
 120.4kbits/[Parsed_concat_0 @ 0x56257918b680] Buffer queue overflow,
 dropping.
     Last message repeated 343 times
 [out_0_0 @ 0x562579193980] 100 buffers queued in out_0_0, something may be
 wrong.
 [out_0_0 @ 0x562579193980] 1000 buffers queued in out_0_0, something may
 be wrong.
 More than 1000 frames duplicated

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Ticket URL: <https://trac.ffmpeg.org/ticket/7458>
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