[Ffmpeg-devel] MPEG 2 Quality Issues

Baptiste Coudurier baptiste.coudurier
Fri Dec 1 16:45:54 CET 2006


herve.flores wrote:
>>> [...]
>> Is -top really needed here?

Not at all.

> most of time, contents of DV is interlaced (and most of time DV is
> bottom-field-first)
> if you don't write the field order, ffmpeg will produce a progressive
> output (and you'll see beautifull "comb's effect" during reading on TV ;-))

Wrong. Using either ildct, ilme or alt will produce interlaced content
if codec supports it (mpeg2, mpeg4)

without specify -top, it will be default to -1 and therefore ffmpeg will
keep previous field order.


Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
SMARTJOG S.A.                                    http://www.smartjog.com
Key fingerprint                 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA
Phone: +33 1 49966312

More information about the ffmpeg-devel mailing list