[FFmpeg-trac] #3413(undetermined:new): invalid read in swscale when converting from rgb24 to yuv420p

[FFmpeg]

#3413: invalid read in swscale when converting from rgb24 to yuv420p
-------------------------------------+-------------------------------------
             Reporter:  ubitux       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
  avpicture_alloc                    |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by cehoyos):

 Also reproducible with the following command lines, see ticket #3582:

 Invalid read of size 4:
 {{{
 $ valgrind ./ffmpeg_g -cpuflags mmx+sse+sse2 -f lavfi -i testsrc=s=634x320
 -frames:v 1 -pix_fmt yuv420p -f null -
 }}}
 Invalid read of size 8:
 {{{
 $ valgrind ./ffmpeg_g -cpuflags mmx+sse+sse2+ssse3 -f lavfi -i
 testsrc=s=634x320 -frames:v 1 -vcodec mpeg4 -f null -
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3413#comment:1>
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