[FFmpeg-trac] #11413(undetermined:new): lead: problem with "interleave" mode

[FFmpeg]

#11413: lead: problem with "interleave" mode
-------------------------------------+-------------------------------------
             Reporter:  ami_stuff    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I will attache two samples:

 "lead_interleave_always.avi" file was encoded with "interleave" option set
 to "always" in the lead's encoder

 "lead_interleave_never.avi" file was encoded with "interleave" option set
 to "never" in the lead's encoder

 ffmpeg decodes "lead_interleave_always.avi" file with visual misaligments,
 original codec decodes it correctly


 {{{
 ./ffmpeg -i lead_interleave_always.avi -y out.avi
 ffmpeg version N-118204-geab65379bf Copyright (c) 2000-2024 the FFmpeg
 developers
   built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
   configuration:
   libavutil      59. 53.100 / 59. 53.100
   libavcodec     61. 28.100 / 61. 28.100
   libavformat    61.  9.102 / 61.  9.102
   libavdevice    61.  4.100 / 61.  4.100
   libavfilter    10.  6.101 / 10.  6.101
   libswscale      8. 13.100 /  8. 13.100
   libswresample   5.  4.100 /  5.  4.100
 Input #0, avi, from 'lead_interleave_always.avi':
   Metadata:
     software        : VirtualDubMod 1.5.10.2 (build 2542/release)
   Duration: 00:00:01.48, start: 0.000000, bitrate: 9426 kb/s
   Stream #0:0: Video: lead (LEAD / 0x4441454C), yuv444p, 300x300, 9636
 kb/s, 25 fps, 25 tbr, 25 tbn
 Stream mapping:
   Stream #0:0 -> #0:0 (lead (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 Output #0, avi, to 'out.avi':
   Metadata:
     software        : VirtualDubMod 1.5.10.2 (build 2542/release)
     ISFT            : Lavf61.9.102
   Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p(tv, progressive),
 300x300, q=2-31, 200 kb/s, 25 fps, 25 tbn
     Metadata:
       encoder         : Lavc61.28.100 mpeg4
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
 [out#0/avi @ 0x557c82071cc0] video:164KiB audio:0KiB subtitle:0KiB other
 streams:0KiB global headers:0KiB muxing overhead: 3.931224%
 frame=   37 fps=0.0 q=24.8 Lsize=     170KiB time=00:00:01.48 bitrate=
 942.3kbits/s speed=42.2x
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11413>
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