Blue_MiSfit
5th February 2007, 04:24
Hey everyone,
So a friend of mine has me working up a procedure for him to put his DVDs on his iPod, so that he can take them with him, and play them on a TV with the video out dock.
Anyway, he has a 5g (not a 5.5), so that means for good resolution (over 320x240) vanilla MPEG-4 is required, no more than 1500kbit, and no bframes, CQMs, or other advanced settings. Fine.
I decided to shoot for a 640x_ resolution, as this is a good compromise between 320 and 720, and is pretty "standard" - whatever that means. 1500kbit should ensure good quality with this resolution for most material.
Indeed when I do a 2 pass encode with either vdub or megui (xvid_encraw) everything looks great. Very watchable, albeit not quite what I'm used to with full resolution high bitrate x264 with ffdshow's lanczos + noise.
The strange thing is that even though the output of both encoders (vfw and xvid_encraw) plays just fine on my PC, and even in quicktime, no matter what settings I use for xvid_encraw, I cannot get it to play correctly on the iPod.
Whatever I use, playback is totally b0rked, with green evilness all over the place, and frames decoding out of order... hard to describe, but violently evil. Then, the same settings (encoded with vdub and muxed to mp4 with yamb) work perfectly.
I'm wondering if anyone else had run into this, and if a solution is known. I taught my friend how to use MeGUI, and it's a lot simpler than doing everything manually with vdub.
~MiSfit
So a friend of mine has me working up a procedure for him to put his DVDs on his iPod, so that he can take them with him, and play them on a TV with the video out dock.
Anyway, he has a 5g (not a 5.5), so that means for good resolution (over 320x240) vanilla MPEG-4 is required, no more than 1500kbit, and no bframes, CQMs, or other advanced settings. Fine.
I decided to shoot for a 640x_ resolution, as this is a good compromise between 320 and 720, and is pretty "standard" - whatever that means. 1500kbit should ensure good quality with this resolution for most material.
Indeed when I do a 2 pass encode with either vdub or megui (xvid_encraw) everything looks great. Very watchable, albeit not quite what I'm used to with full resolution high bitrate x264 with ffdshow's lanczos + noise.
The strange thing is that even though the output of both encoders (vfw and xvid_encraw) plays just fine on my PC, and even in quicktime, no matter what settings I use for xvid_encraw, I cannot get it to play correctly on the iPod.
Whatever I use, playback is totally b0rked, with green evilness all over the place, and frames decoding out of order... hard to describe, but violently evil. Then, the same settings (encoded with vdub and muxed to mp4 with yamb) work perfectly.
I'm wondering if anyone else had run into this, and if a solution is known. I taught my friend how to use MeGUI, and it's a lot simpler than doing everything manually with vdub.
~MiSfit