FORUMS: list search recent posts

Adobe Media Encoder FLV deinterlacing

COW Forums : Compression Techniques

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Matt Radbourne
Adobe Media Encoder FLV deinterlacing
on Oct 20, 2009 at 10:50:29 am

Hi all
I'm filming a documentary for web delivery. I have two questions:

Firstly-
I'm shooting in PAL DV, editing in FCP, exporting to Quicktime Movie (PAL DV), using Compressor to deinterlace, shrink this video down to web res and change framerate etc, but keeping the bitrate and quality as high as possible. I'm exporting from compressor as Quicktime. I'm then using Adobe Media Encoder CS4 to drop the bitrate down and convert to an FLV but retaining the framerate and frame size from the Compressor output. Is this a good workflow? Any improvements?

Second question-
My colleague has exported some interlaced files from Compressor and fed them through my FLV preset in Adobe Media Encoder for use on the web. Do FLV presets in Adobe Media Encoder automatically deinterlace interlaced .MOVs? Or does the FLV basically stay interlaced but badge itself as 'progressive'? I can see field controls for the F4V presets but not FLV.

Many thanks
Matt


Return to posts index

cowcowcowcow
Craig Seeman
Re: Adobe Media Encoder FLV deinterlacing
on Oct 20, 2009 at 1:15:45 pm

I'm not sure why you're using Adobe Media Encoder at all.
Use Compressor and target your output frame size and bit rate. H.264 .mov works as Flash 9. This has been the case since December 2007. Nothing else need be done. Make sure you use Compressor's "Frame Controls" to deinterlace.

http://labs.adobe.com/wiki/index.php/Flash_Player:9:Update:H.264

http://labs.adobe.com/wiki/index.php/Flash_Player:9:Update:H.264#Q:_Will_Fl...

Q: Will Flash Player 9 Update 3 support non-FLV files?

A: Yes, with this update, Flash Player will also support files derived from the standard MPEG-4 container format such as MP4, M4A, MOV, MP4V, 3GP, 3G2 if they contain H.264 video and/or HE-AAC encoded audio.





Return to posts index

Matt Radbourne
Re: Adobe Media Encoder FLV deinterlacing
on Oct 20, 2009 at 4:01:33 pm

Thanks Craig
I'll have a read.

In the very short term, I have been asked for FLV files so do you think my workflow fits this brief well?

Also, can anyone help with my other question? - Whether FLV presets in Adobe Media Encoder automatically deinterlace interlaced .MOVs or stay interlaced but get badged as 'progressive'?

Big thanks


Return to posts index


Craig Seeman
Re: Adobe Media Encoder FLV deinterlacing
on Oct 20, 2009 at 4:44:00 pm

Rather than doing two rounds of compression why not use the source in Adobe Media Encoder then. I guess at issue is the quality of the deinterlacer, and scaling. I wouldn't be surprised if both of those are better in Compressor Frame Controls.

The alternative would be using Telestream Episode which has an excellent deinterlacer and does FLV VP6 Flash 8. That's the same VP6 in Adobe Media Encoder. Alas one would have to purchase Episode but the fact it would simply your workflow and avoid having to create a intermediary compression might make it worth it if you're going to be doing this often and quality is important.

If you're stuck dealing with your current workflow (and you wouldn't be if you used H.264 Flash 9) you could do something "odd" like target an output in Compressor to Apple ProRes. I think that might give you better results than a heavily compressed H.264 file. I haven't tested this workflow (because I have Episode and I do use H.264 for all my Flash compression now as well) but it's worth a look see.



Return to posts index

Matt Radbourne
Re: Adobe Media Encoder FLV deinterlacing
on Oct 21, 2009 at 8:40:58 am

Okay, after a bit of research into Adobe Media Encoder CS4, I believe the On2 VP6 FLVs are automatically deinterlaced.

"Adobe Media Encoder deinterlaces video before encoding whenever you choose to encode an interlaced source to a noninterlaced output."
http://help.adobe.com/en_US/AdobeMediaEncoder/4.0/WS877FE27E-DDE6-4c35-9158...

Adobe have said:
"Always render a deinterlaced (progressive) version of your video before encoding to FLV."
http://www.adobe.com/designcenter/dialogbox/encode_video_02.html

...but I believe this is referring to Adobe Flash Video Encoder CS3, which actually contains a 'deinterlace' checkbox for VP6 files. I'm guessing they removed this option in Media Encoder CS4 because nobody really needs to generate interlaced FLVs.

Does this sound plausible?


Return to posts index

Paul Nelson
Re: Adobe Media Encoder FLV deinterlacing
on Dec 2, 2009 at 2:53:22 pm

I have been playing with AME for a couple days now with extremely frustrating results. I was hoping it would be a replacement for my current FLV workflow which is using the Quicktime Macromedia Studio 8 encoder through Cleaner 6.5.

So far my opinion is that AME is a very weak attempt at an encoding option. It probably works well enough if you are using files from Premiere, but we use Avid. AME doesn't like the default Avid codec exports and I've had to create a custom export template so that AME even recognizes the video track, and you have to be sure to flag the aspect ratio because the "resize" feature is a joke. It only lets you resize according to the inherent aspect ratio. I.E. if you have an anamorphic file you CAN'T resize it in AME. It simply adds black around your video. LAME.

But you are asking about deinterlacing, which is also driving me nuts. Thus far, no matter what settings I export my QTs out of Avid, AME does NOT deinterlace the file. Or, if it is doing, it does so very, very poorly so it still looks interlaced to me. I'm still experimenting with other codec exports to see if it can deinterlace anything at all.

Over all I am less than impressed with AME. It's speed is great, and it offers 2-pass encoding. But the options and functionality are crippling in my opinion.



Return to posts index


Craig Seeman
Re: Adobe Media Encoder FLV deinterlacing
on Dec 2, 2009 at 3:34:01 pm

As I mention above, try Telestream Episode Windows version. It's get an awesome deinterlacer. Understand though that often the best deinterlacing isn't the simple push of a button or click of a box. Episode's deinterlacer is major tweakable. The free trial limits the duration of exports.



Return to posts index

Paul Nelson
Re: Adobe Media Encoder FLV deinterlacing
on Dec 2, 2009 at 3:38:01 pm

Will take a look at that. We are a Mac shop, so not sure if they have a Mac version. The other option is, of course, go right to the source and use ON2's Flix. Was just hoping not to spend more money after buying CS4 production suite. You'd think that since Adobe has taken over Flash, that their software would be a little more robust and flexible.

Thanks for the info.


Return to posts index

Matt Radbourne
Re: Adobe Media Encoder FLV deinterlacing
on Dec 2, 2009 at 6:42:50 pm

Yeah. The resize quality in AME is shocking too sadly. Blurry as you like. I'm doing everything I can in Compressor.

Matt Radbourne
Media Designer
CEM, UK


Return to posts index


Craig Seeman
Re: Adobe Media Encoder FLV deinterlacing
on Dec 2, 2009 at 7:23:59 pm

Thought you were Windows. Telestream Episode is cross platform (both Mac and Windows).



Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]