[FFmpeg-trac] #7888(avfilter:closed): output file's video is incorrect

[FFmpeg]

#7888: output file's video is incorrect
-------------------------------------+-------------------------------------
             Reporter:  applemax82   |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avfilter
              Version:  unspecified  |               Resolution:
                                     |  needs_more_info
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by applemax82):

 I use the above command to do transcoding, but output's video is
 incorrect.

 The source file can be downloaded from http://u.163.com/N3GUSNJN, and
 password is IeIZuu4M.

 but the following command results in correct output's video:

 ffmpeg -init_hw_device qsv=hw -filter_hw_device hw -i
 "4k_ffmpeg_h264_20m.flv" -acodec libfdk_aac -profile:a aac_he -ar 44100
 -ac 2 -ab 64000 -vcodec h264_qsv -vb 20000000 -r 25/1 -force_key_frames
 "expr:gte(t,n_forced*5)" -minrate 20000000 -maxrate 30000000 -bufsize
 40000000 -preset veryfast -profile:v high -vf "format=nv12, vpp_qsv,
 hwupload=extra_hw_frames=64,format=qsv" -vsync 1 -async 1
 -max_muxing_queue_size 2000 -threads 16 -f flv
 4k_ffmpeg_h264_qsv_debug.flv

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7888#comment:2>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker