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

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

Muhammad Faiz:
> On Fri, Mar 8, 2024 at 10:46 PM Andreas Rheinhardt <
> andreas.rheinhardt@outlook.com> wrote:
> 
>> 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
>>
>>
> It seems that all of them are external dependent components. So, I think
> that non external dependent components should be treated differently.
> Also, what is the urgency of (a)fifo removal?
> 

The reason for removing these features is that they have outlived their
usefulness; so have the (a)fifo filters.

- Andreas

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