PV390-1 20gig Transcode needed

[vecha]

I recently lost a CD that contained a program that was able to trasncode video files into the needed MPEG4 at 25 FPS using audio G.711...i have not been able to find any program to change my video files to that...


if anyone knows what I can do...a program I can download...or anything It'd be greatly appreaciated.

[redwudz]

You may have a difficult time using that particular audio codec with most encoders. And I'm not sure which MPEG4 codec you are referring to, there are dozens of them.

But it appears you want a very compact file, especially the audio. I would look into SUPER. It can compress down files to play on cell phones, if wanted, and has quite a few options for the higher compression formats.

If you have a specific MPEG4 format, let us know, but SUPER may be a good replacement for your lost program. And it's freeware, so you have little to lose by trying it.

And welcome to our forums.

[vecha]

it is a nice program...but the PV390-1 still won't load the video file...

All i know is that it must be mpeg4 at 25fps with the g.711 audio codec....

[basisi]

I have bought same one coming with transcoder software. Actually it uses 'ffmpeg[0.4.8]' with parameters below:

-s 320x240 -vn -vcodec mpeg4 -r 25 -b 1500 -sameq -aspect 4:3 -acodec pcm_s16le -y -ab 320 -ar 8018 -ac 2
-s 320x240 -an -vcodec mpeg4 -r 25 -b 1500 -sameq -aspect 4:3 -acodec pcm_s16le -y -ab 320 -ar 8018 -ac 2
-s 320x240 -vcodec mpeg4 -r 25 -b 1500 -sameq -aspect 4:3 -acodec pcm_s16le -y -ab 320 -ar 8018 -ac 2
where
-vcodec mpeg4 means DIVX codec
value of -r and -b depends on the transcoder settings
transcoder calls ffmpeg 3 times; 1)with -vn 2)with -an 3)combine 1 and 2.

After that the transcoder seems to modify tags of ffmpeg's output:
1) Delete JUNKs
2) Add ISFT tag (size=17) with 'TRANSCODER-AVI' and 0x00 0x00 0x00
3) Add a JUNK (size=1674) with date-time at last 16 bytes
4) Modify the size of strf tag on audio to 20 bytes

So transcoding is too hard if you don't have technical knowledges.

You try?
At first you can find ffmpeg and call it like:
ffmpeg -i MovieOnPc.mpg -s 320x240 -vcodec mpeg4 -r 30 -b 300 -acodc pcm_s16le -ar 8018 -ac 2 For390.avi
After that you should modify For390.avi by some RIFF editor.

If you can't find RIFF editor, I might help you with my tag modifier. (I made it but haven't posted anywhere because it is just for me.)