[FFmpeg-trac] #11099(avfilter:new): streamselect filter, map parsing

[FFmpeg]

#11099: streamselect filter, map parsing
-------------------------------------+-------------------------------------
             Reporter:  ManDay       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:
             Keywords:               |  unspecified
  streamselect                       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 It seems the streamselect filter (which is important, because it is the
 only method to consistently define substitution macros!) does not parse
 the map beyond the first argument:

 {{{
 const int n = strtol(map, &p, 0);

 if (map == p)
     break;
 map = p;
 }}}

 will at most read up to the first (unspecified) seperator, whence it
 stops. Instead, I think, should read

 {{{
 if (map == p)
     break;

 map = p + (*p != '\0');
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11099>
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