[MacDV] Video conversion suggestions for iPad2

[Conlon Brett]

Thanks for the suggestions, Nick!

I downloaded the app and have set up all my options.

I'm not sure if the below screenshot will make it to the list or get stripped out so I'll give it a go.

Just in case it doesn't, the video bitrate shows as 1775Kbps (=1.73Mbps). So you're saying that this should be my designated bitrate?

When I review the bitrate on some of my recordings video (opened in MPEG Streamclip then Get Info) I can see bitrate values like 13Mbps (Amazing Race) and 10Mbps (Mythbusters) and 15Mbps (The Pink Panther Strikes Again). That seems much higher than the Adobe app reports.

Here's the screenshot:

	[I had to resend this email with the screenshot stripped coz it sat waiting for the listmum's approval (WHICH NEVER CAME!!!!!)]

Anyway, I'm all ears for your suggestions.

Ta!

Brett


On 29/09/2011, at 2:07 AM, Nick Scalise wrote:

> You did not list a video bit rate. I think that is where you may find
> some file size savings.
> 
> Go here for help on choosing bit rates:
> 
> http://www.adobe.com/devnet/flash/apps/flv_bitrate_calculator.html
> 
> In that page is an Adobe Air app that you can run from your desktop to
> calculate bit rates. It has lots of options to refine your bitrate.
> 
> The direct link to the Air app on that page is here:
> 
> http://www.videoRx.com/apps/air/BitrateStarterRx.air
> 
> After downloading the .air file, double click and it will install.
> 
> Another thing to keep in mind is your pixel size of the movie. You
> want both dimensions to be evenly divisible by 16 for best quality.
> Your size (1024x576) is, just wanted to mention it if you decide to go
> smaller.
> 
> Theres a chart for that too, here:
> 
> http://www.flashsupport.com/books/fvst/files/tools/video_sizes.html
> 
> Lastly, this may be labeled for flash, but you choose h.264 in the
> settings, which is what you are creating. I don't think the wrapper
> has anything to do with image quality.
> 
> On Wed, Sep 28, 2011 at 9:15 AM, Conlon Brett <brettnlis at bigpond.com> wrote:
>> Hiya,
>> 
>> Here's a legitimate question to drown out all the recent SPAM flooding the forum. :)
>> 
>> I'm looking for your suggestions on what are some good settings I should use when converting my recordings to video files for watching on my iPad.
>> 
>> Here's some facts:
>> 
>> The recorder is a PVR (Topfield 2400) and it captures video streams as raw files (no conversions).
>> 
>> I clean them up in MPEG Streamclip (Start/finish/ads) and then save them as TS so that there is no re-encoding of files. I can then watch these on my telly through my Topfield.
>> 
>> Now I want to convert a bunch of them to view on my iPad2.
>> 
>> I've tried HandBrake but the video files show all sort of wierdness then seem to lock up the Video app on the iPad, then it unexpectedly quits.
>> 
>> I've tried using MPEG Streamclip and the results are pretty good but the file sizes are sometimes twice as big as the original.
>> 
>> For example, a 2 minute test sample I'm playing with is about 50MB as a .ts file. When I process it as a Quicktime file with the following settings it becomes 91MB:
>> Quality = 70%
>> Compression = H.264
>> Sound = MPEG-4 AAC (192kbps)
>> Frame Size = 1024x576 (16:9)
>> Deinterlace = ON
>> 
>> If the quality is set to 50% (the default value) the file size is 40MB but the video quality is distractingly poor in detailed or fast-moving scenes.
>> 
>> Does anyone have any good suggestions or even alternative (Mac) solutions for easily/quickly converting video files for their iPad.
>> 
>> Do any of the Roxio products work well for their cost?
>> 
>> Thanks a bunch!
>> 
>> Cojcolds
>> 
>> BTW, is there a good short file out there that can be downloaded which is good for encoding testing, ie. it has some motion, fine detail, gradual gradients etc?
> 
> -- 
> Nick Scalise
> nscalise at gmail.com
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