[FFmpeg-trac] #10238(undetermined:new): mszh: yuv420 compressed file fails to decode when width is not multiple of 4

[FFmpeg]

#10238: mszh: yuv420 compressed file fails to decode when width is not multiple of
4
-------------------------------------+-------------------------------------
             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            |
-------------------------------------+-------------------------------------
 attached 306x306 files decodes visually correctly with VirtualDub +
 original VFW, but in this case the output from VirtualDub "Export/Raw
 video..." is not identical for both of the files

 the same story about attached two 304x306 samples, which decodes visually
 ok with FFmpeg/VirtualDub, but the raw output is not identical for both of
 them

 {{{
 ./ffmpeg -i mszh_306_306_yuv420.avi -y out.avi
 ffmpeg version N-109867-g5247dab6b1 Copyright (c) 2000-2023 the FFmpeg
 developers
   built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
   configuration:
   libavutil      58.  1.100 / 58.  1.100
   libavcodec     60.  2.100 / 60.  2.100
   libavformat    60.  2.100 / 60.  2.100
   libavdevice    60.  0.100 / 60.  0.100
   libavfilter     9.  1.100 /  9.  1.100
   libswscale      7.  0.100 /  7.  0.100
   libswresample   4.  9.100 /  4.  9.100
 Input #0, avi, from 'mszh_306_306_yuv420.avi':
   Metadata:
     software        : Lavf60.2.100
   Duration: 00:00:00.33, start: 0.000000, bitrate: 27166 kb/s
   Stream #0:0: Video: mszh (MSZH / 0x485A534D), yuv420p, 306x306, 23.97
 fps, 23.97 tbr, 23.97 tbn
 Stream mapping:
   Stream #0:0 -> #0:0 (mszh (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 [mszh @ 0x55df7e4309c0] Decoded size differs (140454 != 140452)
 [mszh @ 0x55df7e454180] Decoded size differs (140454 != 140452)
 [mszh @ 0x55df7e477940] Decoded size differs (140454 != 140452)
 Error while decoding stream #0:0: Invalid data found when processing input
     Last message repeated 2 times
 [mszh @ 0x55df7e49b100] Decoded size differs (140454 != 140452)
 Error while decoding stream #0:0: Invalid data found when processing input
 [mszh @ 0x55df7e4be8c0] Decoded size differs (140454 != 140452)
 Error while decoding stream #0:0: Invalid data found when processing input
 [mszh @ 0x55df7e4e2080] Decoded size differs (140454 != 140452)
 Error while decoding stream #0:0: Invalid data found when processing input
 [mszh @ 0x55df7e505840] Decoded size differs (140454 != 140452)
 Error while decoding stream #0:0: Invalid data found when processing input
 [mszh @ 0x55df7e529000] Decoded size differs (140454 != 140452)
 Error while decoding stream #0:0: Invalid data found when processing input
 Output #0, avi, to 'out.avi':
   Metadata:
     software        : Lavf60.2.100
     ISFT            : Lavf60.2.100
   Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 306x306, q=2-31,
 200 kb/s, 23.97 fps, 23.97 tbn
     Metadata:
       encoder         : Lavc60.2.100 mpeg4
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
 frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=
 -0.0kbframe=    0 fps=0.0 q=0.0 Lsize=       6kB time=-577014:32:22.77
 bitrate=N/A speed=N/A
 video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)
 Conversion failed!
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10238>
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