Sample HD MPEG-1 Clip...

[CruNcher]

@digigami
look @ that thread their you find Hardware solutions
http://forum.doom9.org/showthread.php?t=95939
The Tandberg EN5990 Encoder is the most used here in Europe by Playout Stations for HD AVC
http://www.tandbergtv.com/productview.asp?n=68

[digigami]

@digigami
look @ that thread their you find Hardware solutions
http://forum.doom9.org/showthread.php?t=95939
The Tandberg EN5990 Encoder is the most used here in Europe by Playout Stations for HD AVC
http://www.tandbergtv.com/productview.asp?n=68

Only supports up to 4.0 - I think this is the 2003 spec, right?

What hardware are they using downstream at the customers home?

[Sagittaire]

H264 MP@L4.0 or HP@L4.0

Level are simply RC specifications (vbv) and maximun vector range.

Level 4.0:
Max Frame Size (sample): ~ 2 Mbs
Max sample: ~ 60 Mbps
Max Vector Range: +/- 512
Resolution: ~1280*720*60 or ~1920*1088*30 max

For H264 it's a very high max quality ... certainely for MPEG2 too.

[CruNcher]

What hardware are they using downstream at the customers home?

Hardware like this and O wonder it's HP@L4.0 ;) but it's not widely available to customers yet just 1000 units or so used in Stores and by Special selected Persons.
http://www.pacemicro.com/Corporate/products/prodinfo.asp?PID=DS810

Im more for this solutions anyway we in europe also useing the new DVB-S2 standard so we have to update this too to be able to watch Free and Paytv in HD http://www.knc1.com/d/produkte/digital_dvb_s2_plus.htm

We certainly have one major economical important factor here and that is the Soccer World Championship in 2006, it's really pushing HD on all levels here.

[russo121]

I can't see any movie in x264 mp4 form? I get an error in vlc media player version 0.8.4a - "mp4 error: MP4 plugin discarded (no moov box)" ?
I tried also nero showtime, quicktime player, wmplayer, tcpmp. I don't know how to see.. can somebody help?

Edit:
Here sample H264 High Profil

King Kong (http://multimediacom.free.fr/Download/x264HP_KingKong_720p_1500.mp4)
1280*720*25
1500 Kbps

Harry potter IV (http://multimediacom.free.fr/Download/x264HP_HPIV_720p_1250.mp4)
1280*720*25
1250 Kbps

Ice Age 2 (http://multimediacom.free.fr/Download/x264HP_IceAge_720p_1250.mp4)
1280*720*25
1250 Kbps

[dbzgundam]

My matrix (Sagittaire Matrix) seem to be the best for metric at this time. It's a HVS like matrix (HVS-good structure with lower coef for high frequencies intra/inter)

Avs script is very simple script without advanced tweak filter:
source=DirectShowSource("D:\Mes dossiers\High-Definition\ice_age_2-tlrD_h1080p.mov", fps=23.976)
source=Crop(source,12,4,-12,-4)
source=LanczosResize(source,1280,720)
source=AssumeFPS(source,25)
Return(source)

But before all it's a Libavcodec performance and not Matrix or Script performance.

First result: for same quality (metric) with HPIV at 1250 Kbps with the best AVC encoder I must use 2600 Kbps with Libavcodec MPEG2 encoder

I don't mean to go off topic, but what exactly is used to output with libav? Vdub can't do it through FFDShow for obvious reasons (This is MPEG2 afterall), so unless there's a CLI way, I don't know how. >>

On topic though, Sagittaire's MPEG2 clip certainly is amazing, for the bitrate of course... All these claims I hear about AVC being good with moderate amounts of grain at 3000kbps still seem a bit low to me... Though I am using DVD sources, not uncompressed or HD sources, 3Mbits seems to still smear at least a little bit with current implementations of x264.

MPEG2 does even worse, for obvious reasons! :D I have also tried (somewhat) to duplicate Sagittaire's results... I assume digigami's screenshot was showing Sagittaire's Matrix, so I used that in HC for encoding... Results were kind of crappy, even with the max bitrate allowed being at least 8Mbps (this time, the source was filtered anime though).

The point of all this being of course, MPEG2 is never gonna come close to getting AVC's results... Even that of well-developed ASP codecs as well (I've done HD XviD tests and they encode much better than MPEG2 equivalents). Still though... I'd like to apply Sagittaire's libavcodec settings to an SD res video... I imagine it would lead to very small (for MPEG2) DVDs. ;)