Am 15.06.2015 um 14:02 schrieb tim nicholson:
On 15/06/15 09:39, Christoph Gerstbauer wrote:
1.) Please can you tell me YOUR used syntaxes for IMX30/40/50 for PAL
and NTSC? I want to compare it to mine.
Mine look remarkably similar to yours except for the ommission of 'ilme'
which makes no sense for an I frame only format.
Maybe the ffmpeg documentation is not correct?
"ILME: Force interlacing support in encoder (MPEG-2 and MPEG-4 only).
Use this option if your input file is interlaced and you want to keep
the interlaced format for minimum losses. The alternative is to
deinterlace the input stream with-deinterlace, but deinterlacing
introduces losses."
Our IMX50 source will be always interlaced. But what does ILME have
to to with Intra frame encoding (I-frame)? Does ILME only works for
Hmmm. the docs describe 'ilme' twice; in Section 11 (Codec Options) it
simply states:-
‘ilme’ Apply interlaced motion estimation.
For an I frame only format motion estimation is not applicable. So I
would say that ilme has nothing to do with Intra frame encoding.
GOP structures in MPEG2 and MPEG4? If yes, this should be explained
in the documentation, I think. But it isnt.
Unless the flag performs some other undocumented fuction as well it
ought to be redundant.
Hm do you know who implemented ilme?
Otherwise, what do you think? is it better to delete it from the syntax
or not?
Best Regards
Christoph
_______________________________________________
ffmpeg-user mailing list
[email protected]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user
