Infoseite // AVI to MPEG: I do not kapiers



Frage von jaccomo:


Hab mal ne new here and I the question for you pros may sound dopey:

I'll do with my little Canon Ixus 50 small movies in AVI format (640 x 480 at 30 frames). With Windows Movie Maker, I start putting stuff together then. Now I have to date example an 3:08 Min movies in WMV format, makes 25 MB on disk.

In order to better be able to exchange it like I wanted to make it readable DVD Players and if possible reduce the memory requirements. So I have my views TMPGEnc 2.5 Pros and downloaded the WMV movies converted to MPEG (PAL Video CD or in the second attempt on Super Video CD PAL). In the first experiment, the movies in the presentation has become smaller (approximately 480 x 320) and still has about 28 MB. When set, Super VCD, the display is greater than 640 and OK but 60 MB.

Now I'm really confused. I thought MPEG-compressed!? Have ichs set incorrectly? I Make a fallacy? I got the wrong software? Otherwise, any hook s.der thing? I really do not kapiers!

Danke schon mal für Eure Hilfe.

Space


Antwort von Peter S.:

For VCD and SVCD There prescribe standards, the image size, repetition rate, audio frequency and data rate. Evade them from you that can read any DVD player. The data suggest more of your videos on the NTSC standard, PAL is common here. To avoid further loss of quality, you should export it in Movie Maker to AVI, the same codec as your original films. TMPEG the film can then either VCD or SVCD (here only 30 days to convert).
MFG Peter

Space


Antwort von Forrest:

"jaccomo" wrote: Now I'm really confused. I thought MPEG-compressed!?

Does it synonymous, but not as strong as WMV. Guck dir doch mal an, how big the original AVIs are and compare it with the MPEGs.

Christian

Space


Antwort von Stefan:

No catch, that's normal.

VideoCD
http://de.wikipedia.org/wiki/ Video CD

A movie of 3 minutes 8 seconds at a time has uncompressed image size of 352 × 240 (NTSC Picture) and 30 frames / s (3 min * 60 S / Min. +8 S) * 30 fps * 352 xpixels ypixels * 240 * 3 bytes / pixel = 1,429,400,000 bytes = approximately 1363 MB. Respectively. a bit rate of 30 frames / s * 352 xpixels ypixels * 240 * 3 bytes / pixel * 8 bits / pixel = 60,825,600 bits / s

If you can squeeze through the compression to 25 MB, which is not bad. Heh, that is less than 2% of the uncompressed data! The bit rate now stands at only 25 / (3 * 60 +8) * 1024 * 1024 * 8 = 1115506 bits / s. And that fits the Video CD format.

Good luck
The fat Stefan

Space


Antwort von jaccomo:

"Forrest" wrote: "jaccomo" wrote: Now I'm really confused. I thought MPEG-compressed!?
Does it synonymous, but not as strong as WMV. Guck dir doch mal an, how big the original AVIs are and compare it with the MPEGs.
Christian


Good idea, I've made. Together more than 300 MB. Hab noch 'n bissel rumgeschnipselt off but are loose 10% came of it. Ned schlecht!

Space


Antwort von jaccomo:

"Peter S." wrote: To avoid further loss of quality, you should export it in Movie Maker to AVI

Merci! That's what I once considered synonymous. There I find three settings
1) DV-AVI: (I assume you mean s.das). Since allerdingt has the file then 708 MB. More than 3 minutes then I did not even beka on a CD. Can it be?

2) high quality video (PAL): There will not contain Filesize.
3) Video for local playback (whatever that is)

Silly question: Can not you read a commercial DVD player, WMV? Since my problem would be eliminated already and I just leave everything to WMV. Or do you mean, and how are you doing this with your movies?

I have also seen that there is probably a Movie Maker 2.x. Is it worthwhile for the your opinion?

Space


Antwort von jaccomo:

"jaccomo" wrote: Can not you read a commercial DVD player, WMV?
Habs just trying times: No he can not. So CD s.in the trash.

Space


Antwort von Forrest:

"jaccomo" wrote: 1) DV-AVI: (I assume you mean s.das). Since allerdingt has the file then 708 MB. More than 3 minutes then I did not even beka on a CD. Can it be?

Yes, this is so, for DV-AVI is just the original format as it is synonymous saved on your tape. That you can then (eg with TMPGEnc) to convert (S) VCD format. So you get s.end out the best quality.

And enough disk space to cache the DV AVIs are you so determined.

Christian

Space





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