convert any video format to flv successfully - Page 2

CTYves · 9th August 2008, 14:11

Is there a command that makes it respect the fps of the input video?

dat720 · 9th August 2008, 14:18

if you leave the fps command out it will use the input fps, but mencoder see's that video as 100fps, which is why the video finishes playing before the audio after it's been encoded.

dat720 · 9th August 2008, 14:28

Code:

"D:\VidTools\AutoMen\mencoder.exe" %1 -o "%~dpn1.youtube.flv" -mc 0 -demuxer lavf -of lavf -ovc lavc -lavcopts vcodec=flv:vbitrate=448:autoaspect:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:precmp=2:cmp=2:subcmp=2:preme=2 -vf scale=320:240 -oac mp3lame -lameopts abr:br=56 -srate 22050

This command has better results, the demuxer is specified as lavf, which seems to have better success detecting the fps, but the audio is still choppy, even tho it is now using lame and not libmp3lame..... im stumped.

CTYves · 9th August 2008, 14:36

Yes, it is. I tried it with "-srate 44100" too, but that didn't help. Same choppyness.

manono · 11th August 2008, 11:04

Quote:

Originally Posted by dat720

Here is the Transformers trailer i did but it seems youtube totally raped the video, it looks much better from the original flv....

It looks better when you play the "High Quality" MP4 version:

http://www.youtube.com/watch?v=0lf9BBS7eDk&fmt=18

Not much better, but a little bit. You could get much better results by uploading a higher resolution video for them to reencode. They recommend 640x480, although I make mine 512x384 usually (or some widescreen equivalent like 640x272 or whatever). And they say they prefer XviD/DivX AVIs. Their reencoded "High Quality" MP4s have a 480 width, so you'd best upload something with at least that width.

dat720 · 11th August 2008, 11:39

I was under the assumption that if you uploaded a compliant mp4 it left it alone rather than recoding.....

manono · 11th August 2008, 12:05

Nah, they reencode everything these days. Didn't your nasty looking trailer tell you as much? I'm sure what you uploaded didn't look like that.

Of course, that trailer was pretty difficult to compress, but it would still look quite a bit better (the High Quality version, anyway, and not the Standard Version), if you uploaded a higher resolution source for them to ruin.

Their Standard Quality is 320x240 FLV, so not much point in uploading a 320x240 MP4. Their High Quality is 480x360 MP4. One of them is. Their other High Quality version is 480x360 FLV, but they may be phasing them out. I uploaded 4 videos today and none had the High Quality FLV made available, only High Quality MP4.

dat720 · 11th August 2008, 12:39

Well yeah it did, but in the past i've uploaded content which looked just as good as the original......

I might reencode that 1080p trailer and see how it looks after a upload at 640x480 or something.

That is after this x264 encode finishes, it's only got 2000 minutes to go :/ i'm so buying a quad with my next pay check

9th August 2008, 14:11	#21 \| Link
CTYves mx rider Join Date: Jul 2008 Posts: 11	Is there a command that makes it respect the fps of the input video? __________________ Upload your mororized sports video to www.carbtube.com and earn a little money on the side from them.

9th August 2008, 14:28	#23 \| Link
dat720 Registered User Join Date: Jan 2008 Posts: 870	Code: "D:\VidTools\AutoMen\mencoder.exe" %1 -o "%~dpn1.youtube.flv" -mc 0 -demuxer lavf -of lavf -ovc lavc -lavcopts vcodec=flv:vbitrate=448:autoaspect:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:precmp=2:cmp=2:subcmp=2:preme=2 -vf scale=320:240 -oac mp3lame -lameopts abr:br=56 -srate 22050 This command has better results, the demuxer is specified as lavf, which seems to have better success detecting the fps, but the audio is still choppy, even tho it is now using lame and not libmp3lame..... im stumped.

9th August 2008, 14:36	#24 \| Link
CTYves mx rider Join Date: Jul 2008 Posts: 11	Yes, it is. I tried it with "-srate 44100" too, but that didn't help. Same choppyness. __________________ Upload your mororized sports video to www.carbtube.com and earn a little money on the side from them.

11th August 2008, 12:39	#28 \| Link
dat720 Registered User Join Date: Jan 2008 Posts: 870	Well yeah it did, but in the past i've uploaded content which looked just as good as the original...... I might reencode that 1080p trailer and see how it looks after a upload at 640x480 or something. That is after this x264 encode finishes, it's only got 2000 minutes to go :/ i'm so buying a quad with my next pay check Last edited by dat720; 11th August 2008 at 12:42.

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9th August 2008, 14:18	#22 \| Link
dat720 Registered User Join Date: Jan 2008 Posts: 870	if you leave the fps command out it will use the input fps, but mencoder see's that video as 100fps, which is why the video finishes playing before the audio after it's been encoded.

11th August 2008, 11:39	#26 \| Link
dat720 Registered User Join Date: Jan 2008 Posts: 870	I was under the assumption that if you uploaded a compliant mp4 it left it alone rather than recoding.....

11th August 2008, 12:05	#27 \| Link
manono Moderator Join Date: Oct 2001 Location: Hawaii Posts: 7,410	Nah, they reencode everything these days. Didn't your nasty looking trailer tell you as much? I'm sure what you uploaded didn't look like that. Of course, that trailer was pretty difficult to compress, but it would still look quite a bit better (the High Quality version, anyway, and not the Standard Version), if you uploaded a higher resolution source for them to ruin. Their Standard Quality is 320x240 FLV, so not much point in uploading a 320x240 MP4. Their High Quality is 480x360 MP4. One of them is. Their other High Quality version is 480x360 FLV, but they may be phasing them out. I uploaded 4 videos today and none had the High Quality FLV made available, only High Quality MP4.