[FFmpeg-devel] [libav-devel] [PATCH 0/20] removal of deprecated features

[Andreas Cadhalpun]

Hi,

On 28.07.2015 15:36, Vittorio Giovara wrote:
> This set contains the removal of all deprecated features marked as
> such until 2012/early 2013. This was announced several times in the
> past months and agreed at several meetings (since fosdem and recently
> at the sprint).
> 
> With more than two year span, downstream users should have had enough
> time to update their API usage (or comment otherwise).

Unfortunately this is just wishful thinking.
As it is, your proposed removal of deprecated features is going to break
about three quarters of all packages using the libav* libraries in Debian:

FF_API_PIX_FMT: 57
amide avbin avifile bino chromium-browser dff dolphin-emu dvswitch
ffmpeg2theora ffmpegthumbnailer ffmpegthumbs fuse-emulator-utils
gmerlin-avdecoder gmerlin-encoders gnash gpac gst-libav1.0 guvcview harvid
hedgewars info-beamer karlyriceditor kodi lebiniou libam7xxx libavg libde265
libextractor libquicktime linphone lives lynkeos.app mlt mplayer mplayer2 opal
openscenegraph ovito paraview performous pjproject qutecom rbdoom3bfg sflphone
strigi survex transcode vtk vtk6 vxl wxsvg x264 xjadeo xpra yorick-av
zoneminder

FF_API_AVFRAME_LAVC: 19
acoustid-fingerprinter amarok aubio blender chromaprint dvbcut gazebo
goldendict jugglemaster kino lightspark mrpt opencv shotdetect spek
squeezelite vcmi vlc xine-lib-1.2

FF_API_AUDIOCONVERT: 5
alsa-plugins cantata ffdiaporama moc mpv

FF_API_DESTRUCT_PACKET: 1
openmw

FF_API_AVFILTERBUFFER: 1
pianobar

Note that this is only counting one API per packet.

Ideally you should make sure that patches for all of them are available,
before these APIs get removed.

Considering how widespread the use of FF_API_PIX_FMT and FF_API_AVFRAME_LAVC
still is, it might make sense to delay their removal.

Best regards,
Andreas