Re: [FFmpeg-devel] [PATCH] avfilter/fifo: Remove (a)fifo filters

[Andreas Rheinhardt <andreas.rheinhardt@outlook.com>]

Muhammad Faiz:
> On Fri, Mar 8, 2024 at 5:40 PM Andreas Rheinhardt <
> andreas.rheinhardt@outlook.com> wrote:
> 
>> Muhammad Faiz:
>>> On Tue, Feb 6, 2024 at 3:58 PM Andreas Rheinhardt <
>>> andreas.rheinhardt@outlook.com> wrote:
>>>
>>>> Andreas Rheinhardt:
>>>>> Obsolete since 4ca1fb9d2a91757c8c4c34dd456abf340e3f765f.
>>>>>
>>>>> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
>>>>> ---
>>>>>  doc/filters.texi         |   9 ---
>>>>>  libavfilter/Makefile     |   1 -
>>>>>  libavfilter/allfilters.c |   2 -
>>>>>  libavfilter/fifo.c       | 165 ---------------------------------------
>>>>>  4 files changed, 177 deletions(-)
>>>>>  delete mode 100644 libavfilter/fifo.c
>>>>>
>>>>
>>>> Will apply in a few days unless there are objections.
>>>>
>>>> - Andreas
>>>>
>>>>
>>> This breaks backward compatibility.
>>>
>>> Please revert.
>>>
>>> Thank's.
>>
>> What breaks that can't simply be fixed by removing the (a)fifo filter
>> from the filterchain?
>>
>> - Andreas
>>
>>
> I use afifo to optimize memory usage.
> And backward incompatible change should only be allowed with deprecation
> periods and major version bump.
> 

Deprecation periods etc. are only common for API breaks; we do not
guarantee that any particular filter etc. stays available and therefore
occasionally remove them without deprecation. Examples of this are the
removal of libopenjpeg in 60ccb3fe787, the removal of libwavpackenc in
45070eec4c or the removal of the XvMC hardware acceleration in
be95df12bb06 (the last commit was accompanied by cefa595361db9 and
b648ece34b6f which deprecated the parts of XvMC that were part of the
public API and therefore subject to the API stability contract).

- Andreas

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