[MPlayer-users] Scaling an interlaced DVCPRO25

[Darío Martín]

DVCPRO25 format has a constant bitrate of 25 mbps. The 4:1:1 is also
mandatory for that format (DVCPRO50 is 4:2:2 and DV is 4:2:0). The
video I get with this command is correctly formated and well
recognized by my player. However, some artifacts severe degrade the
quality of the image. Deinterlacing is not a good option either
because, altough by this way I don't get artifacts, the quality of the
image is degraded by the deinterlacing process.


On Fri, Apr 23, 2010 at 10:23 AM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Darío Martín <dariomartin <at> gmail.com> writes:
>
>> mencoder original.dv -of lavf -lavfopts format=dv -ofps 25 -vf
>> il=d:d,scale=:432,il=i:i,expand=:576,harddup -oac pcm -ovc lavc
>> -lavcopts vcodec=dvvideo:format=411p:ildct -o converted.dv
>>
>> However I get some strange artifacts when I play it in a interlaced display.
>
> While I believe you are using the il filter correctly, you should consider
> de-interlacing with yadif, that might improve quality overall.
> Apart from that, are you setting video-bitrate somewhere? Or doesn't this work
> with dvvideo? And what about 411p - isn't that the worst colour space?
>
> Carl Eugen
>
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