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View Full Version : How to lower Reframes of an MPEG-4 AVC without re-encoding?


pwnsweet
27th March 2010, 04:19
Hi everyone,

I have a simple problem. I have 30 mp4's with the following characteristics:

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 39mn 21s
Bit rate mode : Variable
Bit rate : 368 Kbps
Width : 352 pixels
Height : 264 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.158
Stream size : 104 MiB (74%)
Language : English
Encoded date : UTC 2009-10-21 06:13:37
Tagged date : UTC 2009-10-21 06:13:37

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 39mn 21s
Bit rate mode : Constant
Bit rate : 127 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Stream size : 35.8 MiB (25%)
Language : English
Encoded date : UTC 2009-10-21 06:13:37
Tagged date : UTC 2009-10-21 06:13:37


In it's current state, this video will not play on my Sony PSP because it contains 16 Reframes. The same video with only 3 Reframes works on my PSP. Re-encoding all 30 videos is not an option. Therefore I have two questions:

1. Is it possible to change these videos so that they only have 3 Reframes instead of 16 without re-encoding, and;

2. If it's possible, what's the easiest, noob friendly way of doing it such that the resultant file has the same (or as close to it as possible) video and audio quality of the original?

Dark Shikari
27th March 2010, 04:26
1. Is it possible to change these videos so that they only have 3 Reframes instead of 16 without re-encoding, and;no .

pwnsweet
27th March 2010, 04:28
OK! thanks for the quick reply!