Comment # 2 on bug 1143556 from Antonio Larrosa

Note that our libav package has this in %prep:
rm -Rf libavcodec libavdevice libavfilter libavformat libavresample libavutil
libswscale

And then the ffmpeg libraries are used to generate only the libav-tools
package.

I tested the poc files in Leap 15.0 and TW. In both cases, error messages are
shown and no crash happens, so we don't seem to be affected:

> avconv -i poc2-SegFaultOnPcNearNull.qt -f /dev/null 
avconv version 12.3, Copyright (c) 2000-2018 the Libav developers
  built on Mar 26 2018 12:39 with gcc 7 (SUSE Linux)
Trailing options were found on the commandline.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x56432a96e680] stream 0, offset 0x10b8: partial
file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x56432a96e680] Could not find codec parameters for
stream 1 (Video: mjpeg (mjpa / 0x61706A6D), none(bt470bg/unknown/unknown, top
first), 160x120, 36 kb/s): unspecifi  ed pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'poc2-SegFaultOnPcNearNull.qt':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2012-10-29T23:55:03.000000Z
  Duration: 07:47:14.03, start: 0.000000, bitrate: 0 kb/s
    Stream #0:0(eng): Audio: qdm2 (QDM2 / 0x324D4451), 48000 Hz, 2 channels
(default)
    Metadata:
      rotate          : 0.222935
      creation_time   : 2012-10-29T23:55:03.000000Z
      handler_name    : Procedura obs���ugi skr���t���w danych Apple
    Stream #0:1(eng): Video: mjpeg (mjpa / 0x61706A6D),
none(bt470bg/unknown/unknown, top first), 160x120, 36 kb/s, 0.25 fps, 0.25 tbr,
1 tbn, 1 tbc (default)
    Metadata:
      rotate          : 0.222935
      creation_time   : 2012-10-29T23:55:03.000000Z
      handler_name    : Procedura obs���ugi skr���t���w danych Apple
      encoder         : Motion JPEG A
    Side data:
      displaymatrix: rotation of -0.22 degrees
At least one output file must be specified


> avconv -i poc3-FloatingPointException -f /dev/null 
avconv version 12.3, Copyright (c) 2000-2018 the Libav developers
  built on Mar 26 2018 12:39 with gcc 7 (SUSE Linux)
Trailing options were found on the commandline.
Ignoring attempt to set invalid timebase 1/0 for st:0
[ape @ 0x55bb8c0fc680] Could not find codec parameters for stream 0 (Audio: ape
(APE  / 0x20455041), 1 channels): unspecified sample format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, ape, from 'poc3-FloatingPointException':
  Duration: 03:04:56.93, start: 0.000000, bitrate: 0 kb/s
    Stream #0:0: Audio: ape (APE  / 0x20455041), 1 channels
At least one output file must be specified

So I suggest marking this as resolved/invalid