[FFmpeg-trac] #9029(avformat:new): ffmpeg can not open file while PotPlayer and VLC Player can

[FFmpeg]

#9029: ffmpeg can not open file while PotPlayer and VLC Player can
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             Reporter:  popova-      |                    Owner:
  ksiusha912                         |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  flv          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by fulinjie):

 Replying to [comment:1 popova-ksiusha912]:
 > [https://www.mediafire.com/file/7b7w8ssio32qo2p/sample.flv/file]
 > Video file here.
 > 21.83 MB, can't make it an attachment.
 >
 HI,

 This seems to be related with 87f0c8280:
 "ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS" differs from
 "ist->st->codec_info_nb_frames", if extradata is not extracted correctly.

 Would you please help to verify the patch in [1]?


 [1]
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/20210124130033.1086545-1-linjie.justin.fu@gmail.com/

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Ticket URL: <https://trac.ffmpeg.org/ticket/9029#comment:3>
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