how to auto convert HDPVR .ts to mp4 1280x720 in gbpvr?

[Jake]

tvshowman, keep up the great work. I just finally got my DVR all setup to record and channel change my STB via Firewire after going through hoop after hoop.
I would interested in this too as these HD files do take up a lot of space.

Keep us updated.

[tvshowman]

tvshowman, keep up the great work. I just finally got my DVR all setup to record and channel change my STB via Firewire after going through hoop after hoop.
I would interested in this too as these HD files do take up a lot of space.

Keep us updated.

Thanks man!

Keep in mind that you will need a min dual core to get any kinda time results...

most who are decoding playback HDTV will meet those requirements.

I am trying to figure out a good resolution and so far 1080x1080 is what i am falling back on and the downside is the encoder not optimized for anything ***x1080 - meaning under 20 frames encoding. 1280x690 is quicker but the dvd comparison earlier makes sense so we want more lines somehow... My HDTV provider is not great to start and I use HDPVR's recordings as the meadium and 1080x1080 using gbpvr fill ratio looks as close as can be at 3200kb/s to the HDPVR's recording result.

Original HDPVR recording 105 megs
Converted result
39 megs

My test HDPVR file is 105 megs and the encoded result is 39megs and at 29.9fps and It is hard to tell difference. But it is true. It it is not 1920x1080 it isn't.

If the coder will optimize for the xxxx X 1080 algorithm look out!!!

My conversion saves 60% disc space so ya it is well worth it.

cost... 20fps conversion on q6600

[tvshowman]

Well I have been re-encoding some HDTV HDPVR files and getting pretty good results.


<Conversion name="handbreak" exe="HandBrakeCLI.exe" cmd="{SOURCE_FILE} -t 1 -c 1 -f mp4 -w 1280 -l 690 -e x264 -b 2500 -r 29.97 -a 1 -E faac -B 160 -R 0 -6 dpl2 -D 1 -x ref=2:bframes=2:me=umh -v -o {DEST_FILE}" targetExtension=".mp4" />



I've converted 18.4gigs into 6.09gig
2009 MTV Video Music Awards_20090920_00050235.ts - 9,685 megs
2009 MTV Video Music Awards_20090920_00050235.mp4 - 3,077 megs

Survivor Samoa_20090917_17001800.ts - 3,583 megs
Survivor Samoa_20090917_17001800.mp4 - 1,170 megs

The Tonight Show With Conan OBrien_20090917_20352137.ts - 3,582 megs
The Tonight Show With Conan OBrien_20090917_20352137.mp4 - 1,206 megs

Worlds Coastlines From Above_20090920_07300800.ts - 2,520 megs
Worlds Coastlines From Above_20090920_07300800.mp4 - 897 megs

There is a command line version here
http://handbrake.fr/downloads.php

And the guide is here
http://trac.handbrake.fr/wiki/CLIGuide

I am unable to get transcoding onto gbpvr by adding the following command into config and dumping the hanbreak into third party dir....

Code:

<Conversion name="handbreak" exe="HandBrakeCLI.exe" cmd="{SOURCE_FILE} -t 1 -c 1 -f mp4 -w 1280 -l 690 -e x264 -b 2500 -r 29.97 -a 1 -E faac -B 160 -R 0 -6 dpl2 -D 1 -x ref=2:bframes=2:me=umh -v -o {DEST_FILE}" targetExtension=".mp4" />

I think the only way it could work is by pointing to a batch file but i have no clue how to make those.

I can't even figure out how to create it and have it run in low priority

Any coding guru's want to lend a hand?

[tvshowman]

It is either power off and immediately hit the ok/select button or power off and menu. One is the diagnostics menu and the other gives you the output format.

Thanks for your help!

It was power off and menu(settings button)

I would have never thought of those.

I am testing now at 720p Picture looks ok and file size seems much smaller....

Might be easiest just to record at 720p and skip encoding again.

cheers

[tvshowman]

well after a while forcing the hd terminal in 720p mode I am absolutely sure that I do not want to watch HDTV in 720p. It just looks like ok DVD quality and does not give me the feel that 1080i does in face and definition.

forcing 720p and watching hd broadcasts made many shows look just plain...

with that said I have finally agreed on an ok compression kb's & picture size format for the show's that works pretty good for my hdtv provider.

1280x690 @ 3,000kbs

if you are using handbreak you can add those numbers into the prgram and make sure to uncheck 2 pass and you are good to go.

I compressed a 10gig movie down to 2.5gigs and the definition looked way better than forcing the hd terminal to record at 720p

I also changed my default recording compression in the hdpvr to:
Bitrate1080i=13000000
BitratePeak1080i=15000000
BitrateMode1080i=VBR

Bitrate720p=13000000
BitratePeak720p=15000000
BitrateMode720p=VBR

still no luck with a command line script to encode a movie to h264 in pvrx2

[UncleJohnsBand]

Thanks sub for the info.

martint123 thanks for the handbreak tip. I compressed an hour long video from HDTV down to 1280x690 at 23.975 fps bitrate 1,536 kb

Video looks great and file size went from 3,663 megs to 744megs

Took about one hour and 15 minutes to encode the one hour clip on a q6600.

Going to do it now on the cult concert I just recorded

Now if I can figure out how handbreak does it and get it into a command line I will try it on the dual core pvr and see if it kills it or if the pvr runs fine while encoding.

thanks everyone

If you figure out the command line let us know.....I would be interested as well.

[Graham]

I can't even figure out how to create it and have it run in low priority

Type start /? at a Command Prompt. I have no idea whether the start command can be incorporated into GBPVR transcoding but you seem like a try, try and try again kinda guy ...

[UncleJohnsBand]

Type start /? at a Command Prompt. I have no idea whether the start command can be incorporated into GBPVR transcoding but you seem like a try, try and try again kinda guy ...

You should be able to.....I had a test one setup at one point for Handbrake but couldn't get it the way I wanted it.

[tvshowman]

I can see it working by making gbpvr point to a batch file and the batch file wouild need to rename the file to a temp.ts and use that for the handbreak commands. it seems handbreak won't trigger with the %1 ....

I should also add that I am using
1280x690 3,000kb's and 29.93fps and only one pass.

I never bothered to wait twice as long for any 2 pass and these parameters seem to work well for me.

Survivor Samoa_20090917_17001800.ts 3,353megs
Survivor Samoa_20090917_17001800.mp4 1,170 megs

I am going to convert a 9 gig 1080i movie called doomsday in handbreak and see how good it looks.

[UncleJohnsBand]

I can see it working by making gbpvr point to a batch file and the batch file wouild need to rename the file to a temp.ts and use that for the handbreak commands. it seems handbreak won't trigger with the %1 ....

I should also add that I am using
1280x690 3,000kb's and 29.93fps and only one pass.

I never bothered to wait twice as long for any 2 pass and these parameters seem to work well for me.

Survivor Samoa_20090917_17001800.ts 3,353megs
Survivor Samoa_20090917_17001800.mp4 1,170 megs

I am going to convert a 9 gig 1080i movie called doomsday in handbreak and see how good it looks.

I think %1 won't work becuase it appears the HandbrakeCLI (command line interface) is looking just for the path:

-i or --input: input is all important. You must include it, followed by a filepath (like /Volumes/MOVIE or ~/Movies/VIDEO_TS).

instead of %1 use %~p1 .....this will supply just the path of %1 or %~f1 which will pass the fully qualified path name of %1