FFMPEG Deinterlace

[Tom4]

For Deinterlacing mp4.

I have been using:

ffmpeg -i C:\IN.mp4  -filter:v bwdif=mode=send_field:parity=auto:deint=all C:\OUT.mp4

Found the code with an online search.
It appeared to be the most recent advice.
Seems to works pretty good.

Just wanted to know if anybody has any updated code,

or knowledge of settings that could be useful?



--------------
Just as a side note:
A lot of mp4 can have very clear horizontal interlace lines crossing moving objects,
but Media Info says Progressive.

The above code works well, but any extra settings are welcomed.

[Tom4]

Options:

send_frame
[Output one frame for each frame.]

Or;

send_field
[Output one frame for each field.]

Can anybody elaborate on these options?

[Tom4]

11.18 bwdif
Deinterlace the input video ("bwdif" stands for "Bob Weaver Deinterlacing Filter").
Motion adaptive deinterlacing based on yadif with the use of w3fdif and cubic interpolation algorithms. It accepts the following parameters:

mode
The interlacing mode to adopt. It accepts one of the following values:

0, send_frame
Output one frame for each frame.
1, send_field
Output one frame for each field.

The default value is send_field.

parity
The picture field parity assumed for the input interlaced video. It accepts one of the following values:

0, tff
Assume the top field is first.
1, bff
Assume the bottom field is first.
-1, auto
Enable automatic detection of field parity.

The default value is auto. If the interlacing is unknown or the decoder does not export this information, top field first will be assumed.

deint
Specify which frames to deinterlace. Accepts one of the following values:

0, all
Deinterlace all frames.
1, interlaced
Only deinterlace frames marked as interlaced.

The default value is all.

[Selur]

Can anybody elaborate on these options?

0, send_frame -> Output one frame for each frame.
=> So the filter will first create one frame per field and then drop one of the interpolated fields. <> same-rate-deinterlacing.)
1, send_field -> Output one frame for each field.
=> So the filter will first create one frame per field. <> double-rate-deinterlacing <> bob-deintelacing.

A lot of mp4 can have very clear horizontal interlace lines crossing moving objects,
but Media Info says Progressive.

Fingers crossed that the content acutally is interlaced and just wrongly flagged and not interlaced content encoded progressively.