Compressing the recorded HD broadcasts for storage

Forums › Freeview (DVB-T/DVB-S) › Compressing the recorded HD broadcasts for storage - anybody done this?

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#156674 13-Aug-2008 19:07

megui just calls x264.exe for the compression and I have not had much luck with that. Files compress okay but they end up blocky ot sticking on playback and don't talk to me about maintaining audio/video sync!

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Asmodeus

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#156834 14-Aug-2008 10:49

I believe I read that Auto Gordian Knot (AutoGK) can do one step conversion of .ts to divx/xvid but havn't tried it personally. Its great for converting DVDs though

EDIT: yes it does

Program features support of:
- DVD/VOBs(unencrypted from hdd), MPEG2, MPEG1, transport streams (including multi-program ones) and AVI/DV input sources
- XviD or DivX(5/6) output formats
- AC3, DTS, PCM, MPA input audio tracks
- AC3, DTS, MPA, CBR/VBR MP3 output audio tracks
- two audio tracks in AVI
- external (vobsub) or internal (burnt-in) subtitles (with support of forced subs)
- HDTV input/output resolutions(upto 1920x***) and frame rates (50/60fps)
- automatic crop and resize based on compressibility of the source to achieve best results
- automatic detection of input source: PAL, NTSC, FILM, HYBRID
- automatic deinterlacer and IVTC
- automatic split into CD-sized chunks for main video and external subs

eXDee

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#156933 14-Aug-2008 15:49

AutoGK didn't work for me.

lchiu7

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#156995 14-Aug-2008 17:43

eXDee: AutoGK didn't work for me.

Not surprised given the AAC-HE LATM audio we have. But so far I haven't been able to compress the AC3 audio broadcasts I get. But I wondering if it's because my reception is not good and/or my Hauppauge HVR900H is a bit flaky. Will be replacing it with a Nova 500 HD T (something like that) which is PCI card and so ought to be more stable

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hellonearthisman

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#157096 15-Aug-2008 04:34

MediaCoder is the winner so far, I converted an HD olympic clip no worries. sound in sync

StaxRip looks cool, but I need to do more test with it.

AutoGK, yuck, didn't work and didn't uninstall all the stuff it installed.

allstarnz

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#157140 15-Aug-2008 09:50

you have to strip the audio out, and remux it back in later apparently

I use Staxrip a lot, but it throws a paddy with the audio. Also the are no IDR frames which the encoders don't like either. Apparently Megui will work, but I haven't learnt how to use it properly. Also the way it did work was very very slow (1-3 FPS on a Q6600)

lchiu7

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#157145 15-Aug-2008 10:13

Iuse dgavcindex to strip out the audio and it works for AC3 and AAC-HE LATM. Then x264.exe to compress (which is what megui uses). It's slow to be sure. I get 3-4fps on AMD X2 3500. But x264 can be told to use all processors so I would have thought a Quad would run faster than that.

Found another program called besplit which can repair AC3 streams so am now trying that out to see if I can fix sync issues

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hellonearthisman

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#157341 16-Aug-2008 02:43

Mediacoderworks seems to work, mostly and is free. I don't like how it loads a website every time it loads.
Also it has some features, like when it's transcoding, it only dispalys time passed and nothing else.
That can be a worry if your not sure it's going.

I just transcode a 193MB clip to 89.7MB, it took 783 seconds (64bit amd 2.8GHZ dual core)

The other feature i got used to was having to set the output file manually each time.

but it goes

Staxrip looked good but did work for me.

lchiu7

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#157343 16-Aug-2008 06:46

Didn't work for me. Pointed it to a 4.3G .ts file that I had recorded and it said the file was 359Mb and it took about 10s to encode!

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mcraenz

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#157393 16-Aug-2008 11:25

This looks interesting:

http://www.anandtech.com/video/showdoc.aspx?i=3339

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allstarnz

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#157416 16-Aug-2008 14:08

I tried Staxrip and couldn't get it to work with the video, even a copy with the audio stripped out.

I ran out of patience with Megui.

Mediacoder seems to work nicely.

lchiu7

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#157424 16-Aug-2008 15:20

Doesn't work for me - now trying Ripbot.

If it all doesn't work I am going to invest in a 1Tb drive and be done with it! My time is worth more $200 for the drive

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haloo101

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#158501 20-Aug-2008 23:03

I am looking to convert some .ts file. trying on mediacoder now. could anyone suggest what video setting (codec, bitrate etc)
to keep HD goodness...

TinyTim

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#158699 21-Aug-2008 14:58

What are you trying to convert to?

haloo101

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#158729 21-Aug-2008 16:09

probably xvid...
i am just wondering about time it take to convert 30 mins HD show. because i ran it last night and it took almost 1 1/2 hr on mediacoder

my machine is AMD X2 on vista

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