[FFmpeg-devel] [PATCH] avfilter: add framerate video filter
adf.lists at gmail.com
Sun Aug 30 13:45:35 CEST 2015
Carl Eugen Hoyos wrote:
> Robert Krüger <krueger <at> lesspain.de> writes:
>> The only other thing I noticed was that the stream seams to be
>> marked as interlaced when it comes out of the first il filter,
>> which causes warnings like these:
>> [Parsed_framerate_1 <at> 0x7fa4e3426080] Interlaced frame found -
>> the output will not be correct.
> This sounds like an issue to me but we probably need an option for il
> to disable changing the interlaced flag if another usecase for the
> filter was found.
Isn't fields being marked as interlaced correct though?
I mean it's not progressive video that is produced, as each field is
offset by one line and anything that could process correctly, still
needs to know whether a field is top or bottom.
I don't know whether the framerate filter can handle fields or not, if
it can, there should be code that takes account of top/bottom. If there
isn't that code then I guess it really does need de-interlaced
progressive full height frames as input.
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