[FFmpeg-trac] #2461(avcodec:new): VAAPI mpeg2 decoding crashes

[FFmpeg]

#2461: VAAPI mpeg2 decoding crashes
-------------------------------------+-------------------------------------
             Reporter:  BtbN         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  vaapi        |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by BtbN):

 Ok, i'm done with bisecting and ended up with the following:


 {{{
 There are only 'skip'ped commits left to test.
 The first bad commit could be any of:
 2c541554076cc8a72e7145d4da30389ca763f32f
 b7fe35c9e50e1701274364adf7280bf4a02b092b
 We cannot bisect more!
 }}}

 2c541554076c was the last commit to test, and i couldn't compile it for
 some reason, as configure suddenly started not knowing most of the options
 i usualy pass to it(Using gentoo git ebuild for easy building+testing).
 After I finaly managed to configure it, it failed to compile with

 {{{
 make: *** No rule to make target `tools/ffescape'.  Stop.
 }}}

 I then manualy tested the b7fe35c9e50e17 commit, which configures and
 builds without problems, but also has the crash on mpeg2 decode.
 On each step, i manualy applyed the fix from b066d90211 if neccessary.

 H264 decodes fine, mpeg2 always crashes. Didn't test any other codecs.
 Program used to test libavcodec was a vlc git build.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2461#comment:3>
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