[FFmpeg-devel] [PATCH] [PATCH] lavfi: add inverse telecine filter

Himangi Saraogi himangi774 at gmail.com
Wed Mar 11 01:42:16 CET 2015

On 11 March 2015 at 04:00, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Himangi Saraogi <himangi774 <at> gmail.com> writes:
> > +    {"pattern", "pattern that describe for how many
> > fields a frame is to be displayed", OFFSET(pattern),
> This works fine in a quick test.
> An additional parameter could be "start_frame" to
> allow using the filter after a stream was cut.
> For example: Assuming the default "32" value for
> telecine, your current detelecine filter only works
> if the stream is uncut or if exactly a multiple of
> five frames was cut (from the beginning). Add an
> option that allows to choose the starting point in
> the telecine pattern.

Sure, I missed this.

> Warnings are shown when vf_detelecine.c is compiled,
> please remove them.
Fixed locally.

Another important clarification is for the case when the pattern has a 1 or
a 0. In the 0 case,  I am currently just missing the frames in the output
as there is no way to recover them. However, for the 1 case, one of the
fields of a frame is missing. in the output, I can fill the second field
with the nearest frame, but is there a better solution?

Thank you, Carl Eugen
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