[FFmpeg-devel] Evolution of lavfi's design and API

Paul B Mahol onemda at gmail.com
Sat Jun 2 19:38:38 EEST 2018

On 5/2/18, Paul B Mahol <onemda at gmail.com> wrote:
> On 9/11/16, Paul B Mahol <onemda at gmail.com> wrote:
>> On 9/10/16, Nicolas George <george at nsup.org> wrote:
>>> Le quartidi 24 fructidor, an CCXXIV, Paul B Mahol a ecrit :
>>>> So everybody agrees, we should proceed.
>>> I am proceeding, but as you can see in the patch, there is still a fair
>>> amount of work to be done. Still, people can help if they want to speed
>>> things up, especially since a significant part of the work is design
>>> decisions that I can not do alone and will need to be discussed.
>>> What needs to be done (using this mail as a notepad, but including the
>>> tasks
>>> where help is required):
>>> - Finish documenting the scheduling and make sure the implementation
>>> matches
>>>   the documentation.
>>> - Discuss if "private_fields.h" is acceptable or decide another
>>> solution.
>>> - Clearly identify and isolate the parts of the scheduling that are
>>> needed
>>>   only for request_frame()/request_frame() compatibility.
>>> - Decide exactly what parts of the scheduling are the responsibility of
>>>   filters (possibly in the compatibility activate function) and what
>>> parts
>>>   are handled by the framework.
>>> - Think ahead about threading and use wrapper to access fields that will
>>>   require locking or synchronization.
>>> - Think about features whose need I realized while trying to get it
>>> working:
>>>   distinguish productive / processing activation, synchronize several
>>> filter
>>>   graphs.
>>> Please feel free to ask details about any of these points: not only
>>> would
>>> getting interest help me stay motivated, but discussing implementation
>>> details and explaining the design would help me having a clear idea of
>>> the
>>> whole system.
>> For start removal of recursiveness is mostly I'm interested in.
>> What needs to be done for that, can I help somehow?
> Hi,
> So what's remain to be done to have frame threading in lavfi?


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