[vdr] OT: Finnish Yle HD olympics channel..

Seppo Ingalsuo seppo.ingalsuo at iki.fi
Tue Aug 12 15:18:15 CEST 2008


Pasi Kärkkäinen wrote:
>
> Actually interlaced video kinda makes sense for sports and other live
> video.. you get 50 fields per second, so the movement is smooth..  
>   
720p50 or even 720p60 would give superior motion with in practise better 
vertical resolution than 1080i. It would better to let the video encoder 
lose data in a controlled way than rudely alternating between two 540 
line fields with interlaced video. Also now when carbon footprint 
matters it's insane to double every set top box / HDTV power consumption 
at recipient side for doing magical motion vectors based tricks in 
trying to restore the 1080 line image.
> If you look at interlaced video on a progressive display, then you need to do pretty
> heavy deinterlacing, preferrably using "full motion" methods to get 50 or
> 100 fps output.. takes a lot of CPU. Check http://www.100fps.com
>
> Where did you get that stream from btw? 
>   
Recorded from Anixe HD yesterday.
> Digita is broadcasting this channel as 720p in DVB-T.. dunno if it's 25 fps or 50 fps.. 
> Hopefully not 25 fps..  
>
> In what format is that Arte HD? 
>   

At the moment

VIDEO:  [H264]  1280x720  0bpp  50.000 fps    0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 256.0 kbit/16.67% (ratio: 32000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
AO: [oss] 48000Hz 2ch s16le (2 bytes per sample)

But that was an old B/W film so not real HD content.

BR,
Seppo

> -- Pasi
>
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