[FFmpeg-trac] #7779(avfilter:new): mcdeint slow mode SIGFPE

[FFmpeg]

#7779: mcdeint slow mode SIGFPE
-------------------------------------+-------------------------------------
             Reporter:  Ilya87       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:  mcdeint      |               Blocked By:
  SIGFPE                             |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Ilya87):

 backtrace:
 {{{
 #0  0x00007ffff6a53a91 in get_dc (plane_index=<optimized out>,
 mb_y=<optimized out>, mb_x=0, s=0x7fffc9dec040)
     at libavcodec/snowenc.c:566
 #1  iterative_me (s=s at entry=0x7fffc9dec040) at libavcodec/snowenc.c:1099
 #2  0x00007ffff6a579d3 in encode_blocks (s=s at entry=0x7fffc9dec040,
 search=search at entry=1) at libavcodec/snowenc.c:1229
 #3  0x00007ffff6a59d5f in encode_frame (avctx=<optimized out>,
 pkt=<optimized out>, pict=<optimized out>, got_packet=<optimized out>)
     at libavcodec/snowenc.c:1729
 #4  0x00007ffff66627d3 in avcodec_encode_video2 (avctx=0x55555568d4c0,
 avpkt=avpkt at entry=0x7fffffffdb40, frame=0x55555635ac80,
     got_packet_ptr=got_packet_ptr at entry=0x7fffffffdb34) at
 libavcodec/encode.c:296
 #5  0x00007ffff7d01241 in filter_frame
 (inlink=inlink at entry=0x55555568ac00, inpic=<optimized out>) at
 libavfilter/vf_mcdeint.c:189
 #6  0x00007ffff7c44dcb in ff_filter_frame_framed (frame=<optimized out>,
 link=0x55555568ac00) at libavfilter/avfilter.c:1071
 #7  ff_filter_frame_to_filter (link=0x55555568ac00) at
 libavfilter/avfilter.c:1219
 #8  ff_filter_activate_default (filter=<optimized out>) at
 libavfilter/avfilter.c:1268
 #9  ff_filter_activate (filter=<optimized out>) at
 libavfilter/avfilter.c:1430
 #10 0x00007ffff7c4814d in ff_filter_graph_run_once (graph=<optimized out>)
 at libavfilter/avfiltergraph.c:1454
 #11 0x00007ffff7c48f35 in get_frame_internal (ctx=0x55555568be00,
 frame=frame at entry=0x0, flags=flags at entry=1, samples=<optimized out>)
     at libavfilter/buffersink.c:110
 #12 0x00007ffff7c49102 in av_buffersink_get_frame_flags (ctx=<optimized
 out>, frame=frame at entry=0x0, flags=flags at entry=1)
     at libavfilter/buffersink.c:121
 #13 0x00007ffff7c481f2 in avfilter_graph_request_oldest
 (graph=0x5555557bc480) at libavfilter/avfiltergraph.c:1407
 #14 0x000055555558070a in transcode_from_filter (best_ist=<synthetic
 pointer>, graph=<optimized out>) at fftools/ffmpeg.c:4613
 #15 transcode_step () at fftools/ffmpeg.c:4613
 #16 transcode () at fftools/ffmpeg.c:4689
 #17 0x000055555555f176 in main (argc=8, argv=0x7fffffffe678) at
 fftools/ffmpeg.c:4891
 (gdb)
 #0  0x00007ffff6a53a91 in get_dc (plane_index=<optimized out>,
 mb_y=<optimized out>, mb_x=0, s=0x7fffc9dec040)
     at libavcodec/snowenc.c:566
 #1  iterative_me (s=s at entry=0x7fffc9dec040) at libavcodec/snowenc.c:1099
 #2  0x00007ffff6a579d3 in encode_blocks (s=s at entry=0x7fffc9dec040,
 search=search at entry=1) at libavcodec/snowenc.c:1229
 #3  0x00007ffff6a59d5f in encode_frame (avctx=<optimized out>,
 pkt=<optimized out>, pict=<optimized out>, got_packet=<optimized out>)
     at libavcodec/snowenc.c:1729
 #4  0x00007ffff66627d3 in avcodec_encode_video2 (avctx=0x55555568d4c0,
 avpkt=avpkt at entry=0x7fffffffdb40, frame=0x55555635ac80,
     got_packet_ptr=got_packet_ptr at entry=0x7fffffffdb34) at
 libavcodec/encode.c:296
 #5  0x00007ffff7d01241 in filter_frame
 (inlink=inlink at entry=0x55555568ac00, inpic=<optimized out>) at
 libavfilter/vf_mcdeint.c:189
 #6  0x00007ffff7c44dcb in ff_filter_frame_framed (frame=<optimized out>,
 link=0x55555568ac00) at libavfilter/avfilter.c:1071
 #7  ff_filter_frame_to_filter (link=0x55555568ac00) at
 libavfilter/avfilter.c:1219
 #8  ff_filter_activate_default (filter=<optimized out>) at
 libavfilter/avfilter.c:1268
 #9  ff_filter_activate (filter=<optimized out>) at
 libavfilter/avfilter.c:1430
 #10 0x00007ffff7c4814d in ff_filter_graph_run_once (graph=<optimized out>)
 at libavfilter/avfiltergraph.c:1454
 #11 0x00007ffff7c48f35 in get_frame_internal (ctx=0x55555568be00,
 frame=frame at entry=0x0, flags=flags at entry=1, samples=<optimized out>)
     at libavfilter/buffersink.c:110
 #12 0x00007ffff7c49102 in av_buffersink_get_frame_flags (ctx=<optimized
 out>, frame=frame at entry=0x0, flags=flags at entry=1)
     at libavfilter/buffersink.c:121
 #13 0x00007ffff7c481f2 in avfilter_graph_request_oldest
 (graph=0x5555557bc480) at libavfilter/avfiltergraph.c:1407
 #14 0x000055555558070a in transcode_from_filter (best_ist=<synthetic
 pointer>, graph=<optimized out>) at fftools/ffmpeg.c:4613
 #15 transcode_step () at fftools/ffmpeg.c:4613
 #16 transcode () at fftools/ffmpeg.c:4689
 #17 0x000055555555f176 in main (argc=8, argv=0x7fffffffe678) at
 fftools/ffmpeg.c:4891
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7779#comment:1>
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