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[Erich Eickmeyer  <1983862@xxxxxxxxxxxxxxxxxx>]

This is a very high-profile application. Note that it was removed from
Testing but not from Unstable. Additionally, it's seeded in Ubuntu
Studio. We should do whatever we can to keep it from being removed,
including updating it and applying the patch.

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https://bugs.launchpad.net/bugs/1983862

Title:
  FTBFS with ffmpeg 5.x

Status in audacity package in Ubuntu:
  New
Status in audacity package in Debian:
  Unknown

Bug description:
  https://launchpadlibrarian.net/615233650/buildlog_ubuntu-kinetic-
  amd64.audacity_2.4.2~dfsg0-5build1_BUILDING.txt.gz

  (...)
  In file included from /<<PKGBUILDDIR>>/src/AudacityApp.cpp:82:
  /<<PKGBUILDDIR>>/src/FFmpeg.h: In constructor ‘AVPacketEx::AVPacketEx()’:
  /<<PKGBUILDDIR>>/src/FFmpeg.h:892:21: warning: ‘void av_init_packet(AVPacket*)’ is deprecated [-Wdeprecated-declarations]
    892 |       av_init_packet(this);
        |       ~~~~~~~~~~~~~~^~~~~~
  In file included from /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:45,
                   from /<<PKGBUILDDIR>>/src/FFmpeg.h:53:
  /usr/include/x86_64-linux-gnu/libavcodec/packet.h:506:6: note: declared here
    506 | void av_init_packet(AVPacket *pkt);
        |      ^~~~~~~~~~~~~~
  /<<PKGBUILDDIR>>/src/FFmpeg.h: In member function ‘void AVPacketEx::reset()’:
  /<<PKGBUILDDIR>>/src/FFmpeg.h:919:7: error: ‘av_free_packet’ was not declared in this scope; did you mean ‘av_new_packet’?
    919 |       av_free_packet(this);
        |       ^~~~~~~~~~~~~~
        |       av_new_packet
  /<<PKGBUILDDIR>>/src/FFmpeg.h: In member function ‘void AVPacketEx::steal(AVPacketEx&&)’:
  /<<PKGBUILDDIR>>/src/FFmpeg.h:926:21: warning: ‘void av_init_packet(AVPacket*)’ is deprecated [-Wdeprecated-declarations]
    926 |       av_init_packet(&that);
        |       ~~~~~~~~~~~~~~^~~~~~~
  /usr/include/x86_64-linux-gnu/libavcodec/packet.h:506:6: note: declared here
    506 | void av_init_packet(AVPacket *pkt);
        |      ^~~~~~~~~~~~~~

  FFmpeg 5.0 changed the API and it required a big patch for audacity:
  https://github.com/audacity/audacity/pull/3121/files

  Note that patch is on top of master, and Debian/Ubuntu still carry old
  version 2.4.2. To fix this, the package needs to be first updated to
  3.1.3 (or later), and then have that patch applied.

  Upstream issue (now resolved): https://github.com/audacity/audacity/issues/2445
  Debian RC bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1004598

  audacity was removed from debian testing today:
  https://tracker.debian.org/news/1352473/audacity-removed-from-testing/

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