[FFmpeg-trac] #6192(swscale:new): bus error core dump in swscale optimizations on arm

FFmpeg trac at avcodec.org
Tue Feb 28 22:47:37 EET 2017

#6192: bus error core dump in swscale optimizations on arm
             Reporter:  peterbennett  |                    Owner:
                 Type:  defect        |                   Status:  new
             Priority:  normal        |                Component:  swscale
              Version:  3.2.1         |               Resolution:
             Keywords:  crash         |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |

Comment (by peterbennett):

 I tested this with the ffmpeg executable and I cannot reproduce it that
 way. I traced through ffmpeg and it does call the sws_scale in a slightly
 different way. When running the command line through ffmpeg there is the
 following message
  [swscaler @ 0xad1c0] No accelerated colorspace conversion found from
 yuv420p to bgra.
 The command line I used is
  ffmpeg -ss 2.0 -i /path/filename -frames 1 -pix_fmt bgra imagefile.bmp
 It produces an image file without failure, and seems to be the same thing
 we are trying to do.
 I do not know the cause of our error. We have a workaround and if you see
 no bug in ffmpeg here, please close the ticket.

Ticket URL: <https://trac.ffmpeg.org/ticket/6192#comment:5>
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