[FFmpeg-user] Is FFV1 able to encode interlaced video?
Carl Eugen Hoyos
cehoyos at ag.or.at
Mon Aug 10 09:44:16 CEST 2015
MrNice <wxcvbn2006 <at> iol.ie> writes:
> From an interlaced input (video tape) is it
> possible to capture interlaced video file
> encoded with FFV1
What device or software is delivering the input
to FFmpeg? Whatever it is, it will provide frames
(because FFmpeg only accepts frames as input).
> (using -flags +ilme+ildct)?
These are flags intended to optimize encoding for
some codecs. The test in the mailing list thread
you linked indicated that there would be no gain
implementing such flags.
The more important question is:
You are encoding frames with a lossless codec.
Why do want to capture "interlaced video"?
The lossless codec will encode your video and
it will be interlaced after decoding if it was
interlaced before encoding.
Please understand that there is a difference
between interlaced content and interlaced
encoding. There is no interlaced encoding
with FFv1 because it appears not to save any
bytes in the output file and if you have
interlaced content it will be still be
Most TV stations always use interlaced encoding
where I live, no matter if the content is
progressive or not.
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