sheervideo: 8bv 4:4:4 progressive decodes incorrectly

[ami_stuff]

the output from progressive file looks incorrectly (interlaced file decodes ok)

C:\>ffmpeg -i D:\8bv444_progressive.mov out.avi
ffmpeg version N-80398-ge07b8d6 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.5.0 (GCC) 20100414 (Fedora MinGW 4.5.0-1.fc14)
  configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build --arch=
x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686-pc-min
gw32-gcc' --enable-pthreads --enable-memalign-hack --enable-runtime-cpudetect --
enable-cross-compile --enable-static --disable-shared --extra-libs='-lws2_32 -lw
inmm -lpthread' --extra-cflags='--static -I/var/www/users/research/ffmpeg/snapsh
ots/build/include' --extra-ldflags='-static -L/var/www/users/research/ffmpeg/sna
pshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-version3 --
enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-li
bvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable-li
bopencore-amrwb --enable-libmp3lame --enable-libfreetype --enable-libvpx --disab
le-decoder=libvpx
  libavutil      55. 24.100 / 55. 24.100
  libavcodec     57. 46.100 / 57. 46.100
  libavformat    57. 38.102 / 57. 38.102
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 46.102 /  6. 46.102
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  1.100 /  2.  1.100
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\8bv444_progressive.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2016-06-23 01:14:16
  Duration: 00:00:10.00, start: 0.000000, bitrate: 3513 kb/s
    Stream #0:0(eng): Video: sheervideo (Shr2 / 0x32726853), yuv444p(bt470bg/smp
te240m/bt709), 640x480, 3512 kb/s, 2 fps, 2 tbr, 600 tbn, 600 tbc (default)
    Metadata:
      creation_time   : 2016-06-23 01:14:16
      handler_name    : Procedura obs│ugi skrˇtˇw danych Apple
      encoder         : Sheer Y'CbCr 8bu 4:4:4p
[avi @ 0x2d60460] Using AVStream.codec to pass codec parameters to muxers is dep
recated, use AVStream.codecpar instead.
Output #0, avi, to 'out.avi':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    ISFT            : Lavf57.38.102
    Stream #0:0(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 640x480, q=2-31
, 200 kb/s, 2 fps, 2 tbn, 2 tbc (default)
    Metadata:
      creation_time   : 2016-06-23 01:14:16
      handler_name    : Procedura obs│ugi skrˇtˇw danych Apple
      encoder         : Lavc57.46.100 mpeg4
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
Stream mapping:
  Stream #0:0 -> #0:0 (sheervideo (native) -> mpeg4 (native))
Press [q] to stop, [?] for help
frame=   20 fps=0.0 q=2.0 Lsize=      59kB time=00:00:10.00 bitrate=  48.0kbits/
s speed= 213x
video:53kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing ov
erhead: 11.480408%

[Elon Musk]

Fixed in 260de8a264b7525d6ce5a16f3a46d612f03d1a49.