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how to convert mp4 to avi?

Posted: Sat Jun 18, 2011 3:41 am
by jjforums
what settings i should put? i've tried some many ways but it doesn't work...

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Re: how to convert mp4 to avi?

Posted: Sat Jun 18, 2011 10:08 am
by meRobs
Hi, welcome to the forum.
I suggest you begin by trying the two suggestions for AVI in the Encoding Guide: viewtopic.php?f=17&t=9643.
Try either one on a small file first.
If this works, as it should, then alter each setting one at a time (bitrate, etc) until you get what you want.
Good luck

Re: how to convert mp4 to avi?

Posted: Sun Jun 19, 2011 12:13 am
by jjforums
I've followed the settings but I got this error when I try to run AVI file:

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Media Type 0:
--------------------------
Video: 8x0 25.00fps 2004kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Video {73646976-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {10000004-0000-0010-8000-00AA00389B71}
formattype: FORMAT_VideoInfo {05589F80-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 196113
cbFormat: 88

VIDEOINFOHEADER:
rcSource: (0,0)-(0,0)
rcTarget: (0,0)-(0,0)
dwBitRate: 2004475
dwBitErrorRate: 0
AvgTimePerFrame: 400000

BITMAPINFOHEADER:
biSize: 40
biWidth: 8
biHeight: 0
biPlanes: 1
biBitCount: 24
biCompression:
biSizeImage: 0
biXPelsPerMeter: 0
biYPelsPerMeter: 0
biClrUsed: 0
biClrImportant: 0

pbFormat:
0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0020: fb 95 1e 00 00 00 00 00 80 1a 06 00 00 00 00 00 û•......€.......
0030: 28 00 00 00 08 00 00 00 00 00 00 00 01 00 18 00 (...............
0040: 04 00 00 10 00 00 00 00 00 00 00 00 00 00 00 00 ................
0050: 00 00 00 00 00 00 00 00 ........


Re: how to convert mp4 to avi?

Posted: Sun Jun 19, 2011 8:27 am
by ysbinns
Hi, I used the your last settings (posted on Sat) on an MP4 file that contains H264 video and LC-AAC 6 channel sound. You didn't specify how many audio channels you used. That is in the Sound tab. I used Stereo. It converted just fine with no errors. I am using build 5158. Unfortunately each build seems to have it's own unique set of problems since many things always change in each build. What build are you using?

Re: how to convert mp4 to avi?

Posted: Sun Jun 19, 2011 9:56 am
by meRobs
jjforums:
As you could see from the Test Report (viewtopic.php?f=17&t=10383) 4 builds of MediaCoder since 5000 failed to convert properly.
Since you failed to mention the build you use, as requested in the rules, I had assumed you had the latest, 5166.
In this build, I just re-tried the settings given for both AVI choices in the Encoding Guide. They worked.

What are the details for your MP4 source file, as displayed in the Properties panel?
Which of the two AVI settings did you try (AVI-1 or AVI-2)?
What is the last print-out of (beginning with Media Type 0)?

Re: how to convert mp4 to avi?

Posted: Sun Jun 19, 2011 10:22 am
by meRobs
As a second check in build 5166, I converted an AVC/AAC/MP4 file into an Xvid/AVI. It worked.