[FFmpeg-trac] #7385(undetermined:new): Memory leak using decode vp8

[FFmpeg]

#7385: Memory leak using decode vp8
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  zhuqingliang                       |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  leak         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by fulinjie):

 This issue could be reproduced by vp80-02-inter-1418.ivf which is
 available:
 https://github.com/webmproject/vp8-test-
 vectors/blob/master/vp80-02-inter-1418.ivf

 It seems that decoding failures of function "vaEndPicture" lead to the
 error returns without releasing the slice_buffers.

 A patch has been commited for this issue.

 commit: bd9830712604a7463432c4c09a5c41903eb2a628
 {{{
 diff --git a/libavcodec/vaapi_decode.c b/libavcodec/vaapi_decode.c
 index d0a6b5817d..700cd5c681 100644
 --- a/libavcodec/vaapi_decode.c
 +++ b/libavcodec/vaapi_decode.c
 @@ -216,6 +216,11 @@  fail_with_picture:
  fail:
      ff_vaapi_decode_destroy_buffers(avctx, pic);
  fail_at_end:
 +    pic->nb_param_buffers = 0;
 +    pic->nb_slices        = 0;
 +    pic->slices_allocated = 0;
 +    av_freep(&pic->slice_buffers);
 +
      return err;
  }
 }}}

 The decoding failure is caused by iHD driver. i965 driver works well on
 this clip.

 Will report an issue on iHD driver.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7385#comment:4>
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