[MEncoder-users] interlaced/non-interlaced

[James Hastings-Trew]

  On 10-10-06 9:19 AM, Toerless Eckert wrote:
> On Wed, Oct 06, 2010 at 01:48:33AM -0500, Andrew Berg wrote:
>> It's inefficient because takes power and CPU cycles to deinterlace. With
>> hardware players, this isn't a huge issue, but it's unnecessary overhead
>> for software players.
> To me that is the cost of maximizing quality.
> Show me any TV station that's sending out it's interlaced
> material deinterlaced. Or DVDs for that matter.
>
>> If you're not seeing any combing, then it's very likely the video is
>> progressive.
> No. I am quite certain it is interlaced. Heck, mplayer already tells
> me the stream is 25fps. When i play it back with vlc, it shows me the
> stram has 50 frames/sigh) (*sigh*). Now where is the player that correctly
> tells me that is 50 FIELDS/sec interlaced and where i can single frame through
> the picture ;-))
There are no flags in PAL video that differentiate 25fps progressive vs. 
50 fields per second. That's an NTSC thing. All you can do is manually 
observe the material and deinterlace where necessary.