I have an MP4 file encoded with the h264 codec.
Which format is it easiest to convert to and which program do I use to do this?
Thanks in advance,
M93
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 10 of 10
Thread
-
-
I want to convert it to an AVI (XviD codec). I have tried XviD4PSP but the quality is horrible.
-
Source file:
The target settings I want are:
XviD4 codec, 1500kbps bitrate, any audio settings, AVI container -
I have a feeling it has a variable framerate but I don't know how to use Variable Framerate Rx with AviDemux.
When I try to use AviDemux, the audio is out of sych. -
Is this for playback on a standalone player ?
Xvid4PSP doesn't resize by default, so if you want to play this back on a standalone player you will have to first resize to a maximum width of 720 pixels. When you use the resize option in Xvid4PSP, remember to Apply the change before you click OK.
I see no evidence of VFR, and sync problems could come from elsewhere. 1500 kbps should be OK at 720 x nnn, however there is no way to encode to Xvid without taking a quality hit if you want to play back on most standalone equipment. The restrictions simply don't allow for it. If this isn't for standalone playback then you need to use a much higher bitrate at that resolution.
Finally, any encode from one lossy format to another will cost you quality. If you are trying to squeeze it at the same time, the cost will be high.Read my blog here.
-
Yeah, that was my thought as well, before reading your response - bitrate too low for resolution too high. What puzzles me is why newcomers always blame the software when they have no idea how to use it, or even what they're doing at all. I wonder what the original video bitrate was. GSpot will say. 5000? More?
And if you want a defined and good XviD quality, then make a constant quant encode. At that original resolution, I'll bet that a decent quant 3 encode will come out with a much greater bitrate/filesize. In XviD4PSP:
Video Encoding->XviD 2.0 Extreme->Hit the "E" button just to the right
Encoding Mode->Constant Quality
Quantizer->3
That's one way to do it, anyway, and there are other settings you might want to adjust, like the resolution. Set it maybe to 656x272 or similar, if for standalone playback.
The target settings I want are... -
File size isn't a problem.
Anyway, the file is converting now and it'll be done in a couple of hours. I did "3-Pass Bitrate" at 1500 with resolution of 720x296 so it's taking a while.
I'll post my results soon. Thanks for the help. -
if really file size isn't a problem , then I suggest you try manono's suggestion and go quality encoding , you don't have to worry about the right bitrate and it's only 1 pass.
In x264 it's called CRF (constant rate factor),
in xvid it's Constant Quantizer (CQ) , it's not quite exactly the same but both are quality encoding
I must admit however that it's a small problem in program like meGUI that most encoding preset are bitrate mode and when you're new to such programs , it's a big step starting to tweak settings to have quality presets!
Similar Threads
-
H264/Mp4 conversion to Avi have big probs
By wolf422 in forum Video ConversionReplies: 7Last Post: 7th Nov 2009, 21:37 -
MKV [h264/aac] to mp4 conversion problems...
By DestructoEH in forum Video ConversionReplies: 6Last Post: 12th May 2009, 20:19 -
Mov h264 to MP4/h264 Conversion
By Scooter_NJ in forum Video ConversionReplies: 2Last Post: 26th Mar 2009, 11:07 -
H264/AC3 (MKV) to H264/AAC (MP4) ?
By jccca in forum Video ConversionReplies: 10Last Post: 13th Dec 2008, 20:06 -
h264 (MP4) to XviD (AVI) Conversion Trouble
By m93 in forum Video ConversionReplies: 5Last Post: 12th Dec 2008, 11:21