Test results Positve! Downscale HDV to SD at DVinfo.net

Herman Van Deventer · February 22nd, 2007, 01:08 PM

Positive test Results with freeware Mpeg streamclip (Windows).

Import file / export as avi. / Use Apple dvcpro PAL/NTSC codec /
Quality slider / Frame blending , Better downscaling , Interlace / Deinterlace
Field dominance and all the frame size presets available.

Editing on Prem Pro 2 and Prospect / Downscale all my final avi's via
Steamclip before encoding with TMPG or Cinemacraft.

Viva !

Ervin Farkas · February 23rd, 2007, 01:38 PM

MPEG Streamclip is pretty close to VirtualDub in resizing quality. I did some tests today, and it looks sharper, but at the same time it has more compression artifacts than my VDub test file... Do you know what resizing filter is Streamclip using?

Herman Van Deventer · February 23rd, 2007, 06:08 PM

According to Streamclip interface / professional 2d fir scaler.

i convert my prospect hd avi files with streamclip / have not tested m2t files .

Thanks for feedback.

Herman.

Devon Lyon · February 24th, 2007, 11:08 AM

I've had very good results skipping the Vdub step and just taking my full HDV Cineform file into TMPEGEnc (Tsunami) and using that program to down rez a HDV file to a SD 16:9 DVD. It is much much better than Premier Pro's encoding to MPEG2 for DVD. I was using the Vdub step but don't see any real loss in quality by just skipping it and going right to TMPEGEnc. Thoughts? Anyone else had similar results?

Herman Van Deventer · February 24th, 2007, 11:30 AM

The route and reason i,am using Streamclip to resize //

My cineform avi's via streamclip and then encoded in cinemacraf.
Cinemacraft do not accept Cineform avi,s therefore i push my clips via
Mpeg steamclip where i can utilize the unlimited pass encoding /1-3 or four
times for real outstanding results. The timefactor / encoding speeds at
multipass encoding suits my workflow.

Cinemacraft allows me to do a scematic bitrate analysis of the encoded
footage afterwards where i can acces a problem area of the encoding
based on the encoding analysis to tweak and re encode that specific
section.

Herman.

Paul Doherty · February 25th, 2007, 02:14 AM

Quote:

Originally Posted by Herman Van Deventer

Cinemacraft allows me to do a scematic bitrate analysis of the encoded
footage afterwards where i can acces a problem area of the encoding
based on the encoding analysis to tweak and re encode that specific
section.

Herman.

Herman, that sounds interesting. I didn't know you could do that with Cinemacraft - which version are you using?

Herman Van Deventer · February 25th, 2007, 04:38 AM

Cinemacraft SP vers. 2 70. 02.10

February 22nd, 2007, 01:08 PM	#1
Herman Van Deventer Major Player Join Date: Nov 2006 Location: cape town South-Africa Posts: 251	Test results Positve! Downscale HDV to SD Positive test Results with freeware Mpeg streamclip (Windows). Import file / export as avi. / Use Apple dvcpro PAL/NTSC codec / Quality slider / Frame blending , Better downscaling , Interlace / Deinterlace Field dominance and all the frame size presets available. Editing on Prem Pro 2 and Prospect / Downscale all my final avi's via Steamclip before encoding with TMPG or Cinemacraft. Viva !

February 23rd, 2007, 01:38 PM	#2
Ervin Farkas Inner Circle Join Date: Aug 2005 Location: Atlanta/USA Posts: 2,515	MPEG Streamclip is pretty close to VirtualDub in resizing quality. I did some tests today, and it looks sharper, but at the same time it has more compression artifacts than my VDub test file... Do you know what resizing filter is Streamclip using? __________________ Ervin Farkas www.AtlantaLegalVideo.com

February 23rd, 2007, 06:08 PM	#3
Herman Van Deventer Major Player Join Date: Nov 2006 Location: cape town South-Africa Posts: 251	Ervin According to Streamclip interface / professional 2d fir scaler. i convert my prospect hd avi files with streamclip / have not tested m2t files . Thanks for feedback. Herman.

February 24th, 2007, 11:08 AM	#4
Devon Lyon Major Player Join Date: May 2005 Location: Oregon Posts: 213	I've had very good results skipping the Vdub step and just taking my full HDV Cineform file into TMPEGEnc (Tsunami) and using that program to down rez a HDV file to a SD 16:9 DVD. It is much much better than Premier Pro's encoding to MPEG2 for DVD. I was using the Vdub step but don't see any real loss in quality by just skipping it and going right to TMPEGEnc. Thoughts? Anyone else had similar results? __________________ Lyon Films www.LyonFilms.com;

February 24th, 2007, 11:30 AM	#5
Herman Van Deventer Major Player Join Date: Nov 2006 Location: cape town South-Africa Posts: 251	Straight TMPG / V/Dub / & Streamclip The route and reason i,am using Streamclip to resize // My cineform avi's via streamclip and then encoded in cinemacraf. Cinemacraft do not accept Cineform avi,s therefore i push my clips via Mpeg steamclip where i can utilize the unlimited pass encoding /1-3 or four times for real outstanding results. The timefactor / encoding speeds at multipass encoding suits my workflow. Cinemacraft allows me to do a scematic bitrate analysis of the encoded footage afterwards where i can acces a problem area of the encoding based on the encoding analysis to tweak and re encode that specific section. Herman.

February 25th, 2007, 04:38 AM	#7
Herman Van Deventer Major Player Join Date: Nov 2006 Location: cape town South-Africa Posts: 251	Cinemacraft version Cinemacraft SP vers. 2 70. 02.10

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