[FFmpeg-user] v360 expressions

Michael Koch astroelectronic at t-online.de
Tue Feb 25 13:26:03 EET 2020


Am 25.02.2020 um 11:37 schrieb Paul B Mahol:
> On 2/25/20, Paul B Mahol <onemda at gmail.com> wrote:
>> On 2/25/20, Michael Koch <astroelectronic at t-online.de> wrote:
>>> Am 25.02.2020 um 10:40 schrieb Paul B Mahol:
>>>> On 2/25/20, Michael Koch <astroelectronic at t-online.de> wrote:
>>>>> Paul,
>>>>>
>>>>>> On 2/19/20, Michael Koch <astroelectronic at t-online.de> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> would it be possible to allow expressions for the yaw, pitch and roll
>>>>>>> parameters in the v360 filter? I have a project where I need these
>>>>>>> angles to be a function of time.
>>>>>>>
>>>>>> Nope, would make filter 10x times slower.
>>>>> Would it always slow down the filter, or only if these expressions are
>>>>> actually a function of time?
>>>>> Some nice effects would be possible when the angles and/or field of
>>>>> view
>>>>> could be functions of time.
>>>>> A "eval" option (like in "eq" filter) could be added to specify when to
>>>>> evaluate the expressions, and the default would be "init" for fast
>>>>> processing.
>>>>>
>>>> Eval is evil. It is not gonna be added.
>>> And what about sendcmd / commands?
>>>
>> Will look into adding it.
> Done.

Great. I'll test it as soon as possible.

Michael



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