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

FFmpeg trac at avcodec.org
Fri Aug 29 21:12:00 CEST 2014


#3902: FFmpeg MD5 output different with same data #3
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             Reporter:               |                    Owner:
  ahthovaikied                       |                   Status:  new
                 Type:  defect       |                Component:  avformat
             Priority:  normal       |               Resolution:
              Version:  git-master   |               Blocked By:
             Keywords:  md5 mpeg2    |  Reproduced by developer:  0
  ac3 mkv                            |
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by ahthovaikied):

 I dis some more testing and it seems the MD5 start to differ when FFmpeg
 is linked with '''both''' libvaapi and libvdpau.

 On the corei7:
 * with base configuration + {{{--disable-vaapi --disable-vdpau}}}, I get
 726d4f2a3d79e000e0bbde6397311bb2 like the atom => looks like the right
 "reference" MD5
 * with base configuration + {{{--disable-vaapi}}}, I get
 0b0257acc6662c99b71e879d27705ce9
 * with base configuration + {{{--disable-vdpau}}}, I get
 0b0257acc6662c99b71e879d27705ce9

 What do you think?

 Also I don't understand how these libraries are involved in the demuxing
 process.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3902#comment:8>
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