[FFmpeg-user] FFmpeg Architecture

[Mark Filipak]

On 13/02/2024 14.13, Reindl Harald wrote:
> 
> Am 13.02.24 um 19:39 schrieb Paul B Mahol:
>> On Tue, Feb 13, 2024 at 7:21 PM Mark Filipak <markfilipak.imdb at gmail.com>
>> wrote:
>>
>>> On 13/02/2024 03.24, Paul B Mahol wrote:
>>>> On Tue, Feb 13, 2024 at 12:37 AM Carl Zwanzig <cpz at tuunq.com> wrote:
>>>
>>> Paul, Carl, I assume you are both familiar with the source code. I'm not.
>>>
>>> Fact: '-ss'-before-'-i' and '-i'-before-'-ss' _do_ give different results.
>>> I suggested that the
>>> difference might result from the way that FFmpeg is designed.
>>>
>>
>> Not fact, your logic and math skills are really poor, reconsider additional
>> real educational summer camp.
> 
> params *before* "-i" are *input params*
> params *after* "-i" are *output params*
> 
> that has *always* been the case at least for 15 years and so it's logical that you can't place a 
> param at a random position by common sense and expect the same result

Thank you, Harald. I knew that but your gentle reminder is welcome. It has helped me to better see 
the problem.

'-i'-before-'-ss' is not honoring '-copyts' and possibly '-muxdelay 0' so the output's PTSs do not 
match what '-ss' is asking for because '-ss' is citing input PTSs. Is that what you're 'saying'?

--Mark.