[FFmpeg-user] Inverse Telecine with ffmpeg

[Paul B Mahol]

On 8/9/13, James Board <jpboard2 at yahoo.com> wrote:
>>The info you provide was not enough to provide any detailed help.
>
>>How you extract higher quality JPEG images when using nemcoder? Is it
>>using lavc internal encoder?
>
> Lets ignore the JPEG images for now.  The bigger problem is the ffmpeg
> Inverse
> Telecine is getting rid of good video frames, not only the duplicated
> frames.
>
>>If for whatever reason nemcoder works in your specific scenario does not
>> mean
>>that ffmpeg result is worse.
>>
>>So far I have not found that fieldmatch + decimate gives poor results
>>and I assume
>>its working perfectly.
>
> Have you checked the number of frames in your Telecined vs Inverse
> Telecined video?  In my case, the ffmpeg Inverse Telecine is dropping
> a lot more video frames that the mencoder Inverse Telecine.  This is
> a big problem for me, (I don't understand how anyone would think
> otherwise).  Can you send me the command you use to 'tune' the Inverse
> Telecine with ffmpeg?  Thanks.

Perhaps decimate filter is too aggressive, do yet get correct output
without it?