[FFmpeg-trac] #3902(undetermined:closed): FFmpeg MD5 output different with same data #3

[FFmpeg]

#3902: FFmpeg MD5 output different with same data #3
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             Reporter:               |                    Owner:
  ahthovaikied                       |                   Status:  closed
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  git-master   |               Resolution:  duplicate
             Keywords:  mpeg2video   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by cehoyos):

 Replying to [comment:40 ahthovaikied]:
 > Replying to [comment:39 cehoyos]:
 > > At least on all Linux systems, you can always disable the mpeg2video
 decoder with {{{--disable-decoders --disable-hwaccels}}}, '''it makes no
 difference if you specify {{{--disable-vdpau}}}, {{{--disable-vaapi}}}'''
 or {{{--disable-xvmc}}} or not. Your original configure line only
 contained {{{--disable-decoders}}} but not {{{--disable-hwaccels}}}.
 > This is not what I foud out.
 > On my system, builds compiled with {{{--disable-decoders --disable-
 hwaccels}}} or {{{--disable-decoders --disable-vdpau --disable-vaapi}}}
 produce 0b0257acc6662c99b71e879d27705ce9

 You don't have the xvmc headers installed, meaning that {{{--disable-
 decoders --disable-vdpau --disable-vaapi}}} disables the mpeg2video
 decoder while it is not disabled on my system with this configure line. If
 you use {{{--disable-decoders --disable-hwaccels}}}, it makes no
 difference which headers you have installed, the mpeg2video decoder is
 never built.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3902#comment:41>
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