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• avfilter/formats : Remove unused functions

  21 août 2020, par Andreas Rheinhardt

  avfilter/formats : Remove unused functions
  This commit removes ff_parse_sample_format(), ff_parse_time_base() and
  
  ff_query_formats_all_layouts() from libavfilter/formats.c. All of these
  
  functions were completely unused. ff_parse_time_base() has not been used
  
  at all since it had been added in 3448404a707b6e236a2ffa7b0453b3300de41b7b ;
  
  the last caller of ff_parse_sample_format has been removed in commit
  
  d1c49bcae9b7fd41df5c6804ac7f6a5c271a7c2e. And the one and only caller of
  
  ff_query_formats_all_layouts() (the asyncts filter) has been removed in
  
  commit a8fe8d6b4a35c95aa94fccde5f001041278d197c.
  Reviewed-by : Nicolas George <george@nsup.org>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavfilter/formats.c
  • [DH] libavfilter/formats.h
  • [DH] libavfilter/internal.h

• avfilter/vf_overlay : Fix double-free of AVFilterFormats on error

  7 août 2020, par Andreas Rheinhardt

  avfilter/vf_overlay : Fix double-free of AVFilterFormats on error
  The query_formats function of the overlay filter tries to allocate
  
  two lists (only one in a special case) of formats which on success
  
  are attached to more permanent objects (AVFilterLinks) for storage
  
  afterwards. If attaching a list to an AVFilterLink succeeds, it is
  
  in turn owned by the AVFilterLink (or more exactly, the AVFilterLink
  
  becomes one of the common owners of the list). Yet if attaching a list
  
  to one of its links succeeds and an error happens lateron, both lists
  
  were manually freed, whic is wrong if the list is already owned by one
  
  or more links ; these links' pointers to their lists will become dangling
  
  and there will be a double-free/use-after-free when these links are
  
  cleaned up automatically.
  This commit fixes this by removing the custom freeing code ; this will
  
  temporarily add a leaking codepath (if attaching a list not already
  
  owned by a link to a link fails, the list will leak), but this will
  
  be fixed soon by making sure that an AVFilterFormats without owner will
  
  be automatically freed when attaching it to an AVFilterLink fails.
  
  Notice that at most one list leaks because a new list is only allocated
  
  after the old list has been successfully attached to a link.
  Reviewed-by : Nicolas George <george@nsup.org>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavfilter/vf_overlay.c

• lavfi/f_ebur128 : relicense to LGPL

  26 novembre 2016, par Clément Bœsch

  lavfi/f_ebur128 : relicense to LGPL
  All copyright holders have agreed to the relicensing.
  Approved-by : Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
  
  Approved-by : David Sedacca <sedacca@comcast.net>
  
  Approved-by : Ganesh Ajjanagadde <gajjanag@mit.edu>
  
  Approved-by : Jean First <jeanfirst@gmail.com>
  
  Approved-by : Kyle Swanson <k@ylo.ph>
  
  Approved-by : Michael Niedermayer <michael@niedermayer.cc>
  
  Approved-by : Nicolas George <george@nsup.org>
  
  Approved-by : Paul B Mahol <onemda@gmail.com>
  
  Approved-by : Thilo Borgmann <thilo.borgmann@mail.de>
  

  • [DH] LICENSE.md
  • [DH] configure
  • [DH] libavfilter/f_ebur128.c