[FFmpeg-devel] [PATCH] avfilter: Port mp=softpulldown to lavfi

Paul B Mahol onemda at gmail.com
Thu Jan 29 11:35:11 CET 2015


On 1/29/15, Paul B Mahol <onemda at gmail.com> wrote:
> On 1/29/15, Michael Niedermayer <michaelni at gmx.at> wrote:
>> On Wed, Jan 28, 2015 at 03:13:27PM +0000, Paul B Mahol wrote:
>>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>>> ---
>>> Bit-exact with mp=softpulldown except first frame which is uninitialized
>>> data in mp filter.
>>
>>> TODO: pts needs update, workaround is to use setpts filter.
>>
>> patch LGTM except the pts / time_base issue
>
> mp=softpulldown sets all frames to MP_NOPTS_VALUE.
>
> I do not see way how to set filter to use variable frame rate, which
> is possible as repeat_pict can change during stream.
>

I can mimic mp=softpulldown behavior but I'm not sure if such filter is
useful as original mp=softpulldown was designed to work only with Mencoder.
>>
>> [...]
>>
>> --
>> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>>
>> Those who are too smart to engage in politics are punished by being
>> governed by those who are dumber. -- Plato
>>
>


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