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Saturday 27.9.2025 / 04:57
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afterdawn.com > forums > archived forums > divx / xvid > mpeg4
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jack3216
Junior Member
_ 		19. October 2006 @ 11:36 _ Link to this message    Send private message to this user   
I have a AVI video i downloaded i need to convert to MPEG4 excuse my ignorance but could someone explain how to do this
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celtic_d
AfterDawn Addict
_ 		19. October 2006 @ 16:30 _ Link to this message    Send private message to this user   
Depends what you mean by MPEG4.
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jack3216
Junior Member
_ 		19. October 2006 @ 17:52 _ Link to this message    Send private message to this user   
I am having problems with AR of a video i have downloaded it does not fit my full TV screen i was told to download MPEG4 Modifier but AVI file must be in MPEG4 format to use it. Please excuse my ignorance but i would appreciate someones help and advice
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celtic_d
AfterDawn Addict
_ 		20. October 2006 @ 02:43 _ Link to this message    Send private message to this user   
Ok in those terms MPEG4 means ASP MPEG-4 video in an AVI container. Presumably you are talking about a SAP which would generally mean that the video already fits that criteria. Best guess would be that you have a DivX3 (MS MPEG-4 V3(not actually MPEG-4 despite the name)) AVI. There is a modified version of ffmpeg that can convert rather than re-encode to ISO MPEG-4. Changing the AR in MPEG4Modifier just changes a flag though. Upto the player to read it and resize. Also if you did need to re-encode you may as well resize whilst you are doing it, so no need for MPEG4Modifier.
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jack3216
Junior Member
_ 		20. October 2006 @ 03:56 _ Link to this message    Send private message to this user   
Thank you for your knowledgeable reply. Please excsuse my ignorance. MPEG4 MODIFIER states it is a M4 file whatever that s. Also could you explain how to resize thank you
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celtic_d
AfterDawn Addict
_ 		20. October 2006 @ 08:43 _ Link to this message    Send private message to this user   
M4? If it is an AVI file then the video stream will have a FourCC code. eg. DX50, DIV3, mp43, etc.

For resizing I would use AVISynth.
Something like:
avisource("orig.avi")
lanczos4resize(w,h)
encoder and then remux the original audio (assuming it doesn't need re-encoding).
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