Is there a MPEG2 to MPEG2 transcoder out there?

[booji]

I've recently been capturing DVB-T sources, edit them with VideoRedo, Tweak them with DVDPatcher and Burn them on to DVD. So far i've been pleased with the results.

OK the quality is only as good as the Bitrate but its an easy 2 or 3 step method of Archiving my fav bits from TV. In the analogue Virtualdub Capture days I would spend so long tweaking levels and writing AVS scripts that I didnt even get around to finishing the encode!

Now getting to my problem, sometimes my captured Mpeg2 stream (or collection of small cuptures) is bigger than a DVD5.
DVDshrink and Nero is excellent for transcoding since you can set the quality of each film. The problem is Nero and DVDshrink only seem to trancode for DVD material not plain Mpeg2. To get around the problem I would do a simple DVD author in TMPGEnc with the original DVB-t Mpeg streams then run them thought Nero to shrink the DVD to the desired length.

I would either leave it DVD or if I wanted to the Transcoded MPEG streams I would just extract them from the VOBS.

Is there an easier way of doing this? I'm really just looking for an Mpeg2 to Mpegs2 transcoder.

[booji]

oops......just found rejig 0.5f. Just doing a test now to compare it to the Nero (via DVD author) recode I did earlier.

[booji]

Dissapointed with rejig results compared with Nero/DVDshrink.

Anybody know of an alternative transcoder?

[kotrtim]

mencoder - a very good mpeg-2 encoder
You must be very familiar with command lines... don't ask me, coz I don't know, anyway I just give you this link in case you can figure out how to use it ... wait for other replies

http://ffdshow.faireal.net/mirror/mplayer/

videolan can compress to mpeg-2 also, ithink

http://videolan.org/

just go for Fiile -> Wizard

they are all free

[SeeMoreDigital]

Do you just want to burn your DVB-T captured sources to DVD?

If so there's no real reason to re-encode the streams, you could try using: -
DGIndex to "de-mux" your sources to elementary streams (MPEG-2 video.m2v and MPEG-1/Layer-2 audio.mpa) And then...


MuxMan to "re-mux" the elementary streams to a full DVD VOB set


You might have to do some tweeking to correct the audio lengths with another tool if they fall out of MuxMan's delay range.... but the method works ;)


Cheers

[booji]

I've got no problem with getting the *.ts stream to mpeg, vob etc VideoRedo does a great job. I've made several DVDs this way, with no re-compression/trancode needed.

Its just when my compiled DVD is over DVD5 size. I would like a simple transcoder to shrink it a bit. I Know I could go down to CCE re-encode route but I want a 1 click fast solution. Its a pity Nero Recode/Nero Vision doesnt recognise Mpeg2 DVD complient streams and just transcode them but it doesnt. It treats them the same as any other Video stream and tries to re-encode them. Hopefully Nero might add this feature. Untill tell I'll continue to Shrink the authored DVDs if necessary.

[vigi_lante]

You should try "Super MPEG2 Transcoder". Let me know what you think about the quality.

Unfortunally, it's not freeware, and my trial period expired. So, I'm also looking for another solution.

[setarip_old]

@vigi_lante

You're recommending this commercial program, so I presume you've found it to be useful. Now that your free trial period has expired, perhaps you should consider purchasing it for $25US...

[vigi_lante]

Actually, the price is $35, not $25.

It's a very useful software indeed. I would love to buy it. But I cannot afford such an expense, mainly considering my country reality.

[SeeMoreDigital]

Have any of you guys heard about and/or used an application called MPEG-2 Requantizer Component 1.1 (http://www.solveigmm.com/?Products&id=MPEG2Requant).


Cheers

[Guest]

How many bucks are they asking for it? I didn't see any pricing.

[setarip_old]

@vigi_lante

If a $10 reduction in price would make the difference as to whether you can afford the software, check out the following link:

http://www.sellshareware.com/ProgramInfo.asp?PrID=74392

[Guest]

$35, according to the secure order page, overriding the come-on of $25.

[vigi_lante]

Exactly.

[Dmitry Vergheles]

Have any of you guys heard about and/or used an application called MPEG-2 Requantizer Component 1.1 (http://www.solveigmm.com/?Products&id=MPEG2Requant).


Cheers

Take a look here:

http://forum.doom9.org/showthread.php?t=90199&highlight=requantizer
http://forums.dvbowners.com/index.php?showtopic=4057
http://forums.dvbowners.com/index.php?showtopic=3033

[booji]

I took a look at MPEG-2 Requantizer Component 1.1. and Super MPEG2 Transcoder before I posted the original question. Both were not that great. No where near the level of DVDshrink or Nero.

[Rockas]

Have you tried my "SynthEditor"?... I'm not sure it can do what you want but... take a look at my signature :D

[vigi_lante]

Rockas...

I know SynthEditor works with an encoder (HC Enc), and not a transcoder. But it's possible to encode the video, reducing the bitrate, but leaving everything else untouched (resolution, interlaced, etc), just like a transcoder ?

I will give it a try. Looks like it could work perfectly. You can input a MPEG2 stream, and output a MPEG2 stream. Choosing a target size.

Of course it is not as fast as DVDshrink or Nero, but I'm sure the picture quality would be much better.

Obrigado!

[Rockas]

But it's possible to encode the video, reducing the bitrate, but leaving everything else untouched (resolution, interlaced, etc), just like a transcoder ?
Well.. it is prepared to deal with (I hope :D) the standard resolutions... the rest of the properties are the ones detected by DGIndex.

Of course it is not as fast as DVDshrink or Nero, but I'm sure the picture quality would be much better.
Well... I guess that if the output is not good enough for you... then you must reduce the length of the video 'cause it will be very hard to make it better :)

edit: but pleas remember that you are dealing with a "Beta Stage Application" :)

[vigi_lante]

Rockas...

A lot of DVB broadcasts have non-standard resolutions, like 480x480 or 544x480.

Right now I'm working with a 544x480 video. I keeped the same resolution. But inside the SynthVideo.avs file, there is this line...

"LanczosResize(Clip1,544,480)"

So, this line will make no difference at all ? Since it's using the same resolution of the source video (and I guess the command line for LanczosResize to deal with pure interlaced video is different).

Inside the "file name.avs" there is also this line...

"ConvertToYUY2()"

And I would like to know if this is right for pure interlaced video, instead of ConvertToYUY2(interlaced=true).

[Rockas]

"LanczosResize(Clip1,544,480)"

So, this line will make no difference at all ? Since it's using the same resolution of the source video (and I guess the command line for LanczosResize to deal with pure interlaced video is different).
Sorry... i forgot I added the otpion of keeping original resolution :o

"ConvertToYUY2()"

And I would like to know if this is right for pure interlaced video, instead of ConvertToYUY2(interlaced=true).
No... don't worry about that... when you press Encode a new avs will be created "SynthVideo.avs"... you'll find that the colorspace will be changed to "ConvertToYV12(Interlaced=True)" if you select to encode as interlaced, of course ;)