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Best way to Convert AVCHD (.MTS) >> H.264 SD (MP4)?
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JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 11, 2008 12:17 Posts View users profile Send private message Reply with quote
Can anyone tell me how to keep the best quality (for DVD purposes) when using TMPEGEnc 4.0?

Quality is poor when my .mts fiel is converted to mp4 file.
Should I convert the file to another format?

Thanks!

Soopafresh
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Joined: 01 Jan 2004
Location: United States
Post Posted: Feb 11, 2008 12:22 Posts Comp View users profile Send private message Reply with quote
Upload a bit of the bad looking video <5MB

JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 11, 2008 12:38 Posts View users profile Send private message Reply with quote
It's not terrible, but looks nothing like the original. Here's just a small clip.

dvd.mp4

Soopafresh
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Joined: 01 Jan 2004
Location: United States
Post Posted: Feb 11, 2008 12:40 Posts Comp View users profile Send private message Reply with quote
Here's an example of converting MTS to Mpeg2


The AVCHD source

00003_cut2.mts

The MPEG2 Result

00003_cut2.m2v

JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 11, 2008 12:45 Posts View users profile Send private message Reply with quote
Looks good. How are you converting it to a m2v file? I must be doing something different by converting to mp4.

Which mpeg option are you selecting as the output?

jagabo
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Joined: 09 Dec 2005
Location: none
Post Posted: Feb 11, 2008 13:04 Posts Comp View users profile Send private message Reply with quote
JOHNTOUPS wrote:
Looks good. How are you converting it to a m2v file? I must be doing something different by converting to mp4.

For one thing he's using a much larger frame size, 720x480. Your MP4 clip was only 352x288. When both are blown up to full screen size his will be much sharper.

Secondly, he's using a much higher bitrate. AVC is more efficient than MPEG2 but you're still using too little bitrate for your material.

It's hard to tell from the small sample, but it looks like it was originally interlaced video and has been deinterlaced by a not so good method.

Soopafresh
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Joined: 01 Jan 2004
Location: United States
Post Posted: Feb 11, 2008 13:26 Posts Comp View users profile Send private message Reply with quote
Not too many modifications - Just the stuff in green has been modified from the default settings



and





MP4 Rules

With MP4, you normally DON'T want to interlace if your output is MP4 h264. To maintain the proper aspect ratio, you want to resize to 720x400, 640x352, or 480x272

If you're encoding to MP4 AVC, try these settings as an example



Which gives you

00003_cut2.mp4

JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 11, 2008 14:21 Posts View users profile Send private message Reply with quote
Thank you for the help! Those different options worked nice.

Correct me if I'm wrong, but by using the output "HDV Format MPEG File" I may get the best picture, but it will create a larger file size?

Soopafresh
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Joined: 01 Jan 2004
Location: United States
Post Posted: Feb 11, 2008 14:31 Posts Comp View users profile Send private message Reply with quote
HDV format MPEG2 will give you a big picture, but you won't be able to play it on a DVD player.

JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 11, 2008 14:45 Posts View users profile Send private message Reply with quote
"HDV-HD2 Format" created a file which I saved as (.mpg) - I was then able to burn to a DVD using ConvertXtoDVD.

Picture plays great.

JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 12, 2008 08:01 Posts View users profile Send private message Reply with quote
Can someone explain what is "Motion search precision" listed in TMPGenc? Thanks!

jagabo
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Joined: 09 Dec 2005
Location: none
Post Posted: Feb 12, 2008 08:06 Posts Comp View users profile Send private message Reply with quote
JOHNTOUPS wrote:
Can someone explain what is "Motion search precision" listed in TMPGenc? Thanks!

One of the techniques used to reduce the amount of information stored for each frame is to locate blocks of pixels that have moved. Rather than encoding the entire block the encoder can just tell the decoder to move the block from the old location to the new one. Motion Search Precision controls how far the encoder looks for movement. The farther the encoder has to look, the longer it will take. This is the setting that has the largest effect on encoding time. And the slowest settings usually make only a tiny improvement in file size or video quality (compared to the medium settings).

JOHNTOUPS
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Joined: 09 Feb 2008
Location: United States
Post Posted: Feb 12, 2008 08:27 Posts View users profile Send private message Reply with quote
Thank you for the explanation! If I'm reading this correctly, the "low" setting in TMPGEnc will be poorest quality, but fastest.....While the "Highest" setting will be the best quality, but slowest?

jagabo
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Joined: 09 Dec 2005
Location: none
Post Posted: Feb 12, 2008 10:55 Posts Comp View users profile Send private message Reply with quote
JOHNTOUPS wrote:
Thank you for the explanation! If I'm reading this correctly, the "low" setting in TMPGEnc will be poorest quality, but fastest.....While the "Highest" setting will be the best quality, but slowest?

Yes. You get the biggest improvements going from Lowest to Low or Motion Estimate Search to Normal. Above that takes much longer for very little improvement.

denya
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Joined: 09 Mar 2008
Location: Sweden
Post Posted: Mar 09, 2008 09:45 Posts Comp View users profile Send private message Reply with quote
I have installed the tmpgenc 4.0.
installed the klite codec (though under 2. Choose H.264 >> CoreAVC didnt exist for me. I could not choose coreavc, only ffdshow) CoreAVC is installed on my computer.

when I start tmpgenc 4.0 and add a mts file(from panasonic sd5 cam) it says under Audio:"There is no audio data"
I can encode to a mpg file and I get a good quality movie, but without sound.

I can play the raw mts file in media player classic and i get sound (picture a bit distorted)

Can someone please help me with the sound part, I really do not want to split up the movie to audio and movie file before I start with tmpgenc. I want this to be a one click encode job.

Soopafresh
Dismember


Joined: 01 Jan 2004
Location: United States
Post Posted: Mar 09, 2008 17:29 Posts Comp View users profile Send private message Reply with quote
Try this method. Feed the .AVS file to tmpgencxpress

http://forum.videohelp.com/topic346331.html

The audio also has good sync:

00072.mp4

tdavid232
Member


Joined: 15 May 2008
Location: Hungary
Post Posted: May 16, 2008 12:58 Posts Comp View users profile Send private message Reply with quote
ran007 wrote:
boltjames, check your private message inbox. If anyone else is experiencing this, I can send you the two config files for TMPGEnc 4 to fix you up. Just send me a private message


Hi ran007!

I saw you posted that you got a solution for encoding files to MPEG-4 AVC, which are bigger than 720x576. smile.gif Could you share this solution please?

I have been researching 12 hours a day for the last 2 weeks, for the ideal solution to taking a PAL DV footage from a camcorder and converting it into WMV, MPG, MP4, and MP4 for Ipod. TMPGenc Xpress seems to be ideal, as it's quality and speed are better than the rest.

My biggest problems are;
1. I figured that I should convert my original PAL DV to 768x576 square pixels and deinterlaced. I applied a little stretch, so it fills the screen and doesn't leave those nasty black masks on top and bottom. But I need this converted into MP4 and TMPGEnc doesn't allow you anything bigger than 720x576. Mov is out of the question, as the result it produces is horrible and huge, compared to the 1 pass constant quantization MP4. How can I solve this?

2. Ipod and Iphone. They drive me up the wall!!! Why doesn't TMPGEnc have presets for these? I haven't been able to produce a file from TMPGEnc that played on an Iphone or Ipod. So I resorted to using Quicktime Pro, but I hate the fact that you cannot adjust settings in it when exporting to Ipod or Iphone. Who has a good solution for something like this???

Thanks
David

tdavid232
Member


Joined: 15 May 2008
Location: Hungary
Post Posted: May 16, 2008 13:49 Posts Comp View users profile Send private message Reply with quote
I just did a quick test. Can anybody confirm that any of these play on an Ipod or Iphone?

http://www.4shared.com/dir/7075088/9a463a15/sharing.html

Thanks
David

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