[FFmpeg-trac] #2672(avfilter:closed): Incompatible avfilter_graph_parse()

[FFmpeg]

#2672: Incompatible avfilter_graph_parse()
-------------------------------------+-------------------------------------
             Reporter:  ubitux       |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  important    |                Component:  avfilter
              Version:  git-master   |               Resolution:  fixed
             Keywords:  api libav    |               Blocked By:
  fork abi                           |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------
Changes (by saste):

 * analyzed:  0 => 1
 * keywords:   => api libav fork abi
 * status:  new => closed
 * resolution:   => fixed
 * reproduced:  0 => 1


Comment:

 Replying to [ticket:2672 ubitux]:
 > In 6119b23a, API was broken (on purpose):
 >
 > {{{
 >  int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
 > -                         AVFilterInOut *inputs, AVFilterInOut *outputs,
 > +                         AVFilterInOut **inputs, AVFilterInOut
 **outputs,
 >                           void *log_ctx);
 > }}}
 >
 > While that API break was not really a problem at that time, the Libav
 fork already existed and didn't pick that change. This causes an API
 incompatibility between the two projects, which needs to be fixed somehow.
 >
 > AFAICT there is unfortunately no clean way to do that. Best we can do
 seems to be to restore the prototype automatically at next major bump (but
 that might break a lot of apps). Note that some applications are already
 using this new prototypes.

 Should be fixed in:
 {{{
 commit 838bd731393a29a41a86ff15ccf972f967306319
 Author: Stefano Sabatini <stefasab at gmail.com>
 Date:   Tue Jul 2 01:39:14 2013 +0200

     lavfi: create Libav-API compatibility layer for avfilter_graph_parse()
 at the next bump

     Add function avfilter_graph_parse_ptr() and favor it in place of
     avfilter_graph_parse(), which will be restored with the old/Libav
     signature at the next bump.

     If HAVE_INCOMPATIBLE_LIBAV_API is enabled it will use the
     Libav-compatible signature for avfilter_graph_parse().

     At the next major bump the current implementation of
     avfilter_graph_parse() should be dropped in favor of the Libav/old
     implementation.

     Should address trac ticket #2672.
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2672#comment:7>
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