Advice on compressing screen capture movies for web ?

Hello everyone,
I just am curious about what is the best way to go for compressing screen captures so that they maintain the best clarity for text. I've gone back and forth between MP4 (improved) and quicktime movies set to h.264... I am just curious what the general opinion here of what is best to use? It seems that MP4 improved produces larger files with less quality... Also it was a little confusing to see that compressor's h264 option is for "apple devices" or "dvd studio pro" and thus doesn't offer streaming as an option as it does with mp4-- so the only way to properly produce h264 files for web is to use the quicktime option and select h264 as it's compression type? Is this correct?
-patrick

What is the frame size of your source clip, and what frame size have you chosen for your output?
Exactly what settings have you tried so far? Please share some details
I would recommend using the Apple > Other Workflows > Web > Download > QuickTime 7 compatible > H.264 LAN as a starting point.
Set a frame size (i.e. 1280x800, 1024x768 or 768x480, if you have a widescreen computer display) and adjust the video bitrate accordingly. The frame size you choose, should be divisible by 16, 8 or 4, for best quality. Have a look at this article for more info on that: http://www.flashsupport.com/books/fvst/files/tools/video_sizes.html
For more info about H.246 and macroblocks, have a look at http://en.wikipedia.org/wiki/H.264
For more details on getting the most out of H.264, have a look at the Apple tutorial Creating Amazing Video Content with H.264.
1. Find the frame size you would like to end up with
2. Adjust the video bitrate accordingly (set the keyframe interval to automatic)
3. Enable Frame Controls in the Inspector window, and set the Resize Filter to Better or Best (gives you much better quality on downscaling, than without frame controls - do a test and see for your self)
An other good tip, is to set an in/out point in the Preview window in Compressor, with a duration of maybe about 10 secs. That way you do not need to encode the whole clip just to test your settings. Add multiple settings, before you submit the batch. When it is done, see which one you think looks the best compared to file size.

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How to compress a quicktime movie for youtube

how do you compress a quicktime movie for youtube?
dimensions: 1920 x 1080
codecs: apple prores 422, linear pcm
Color profiles: hd (1-1-1)
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Snapz Pro X screen capture Movies into FCEHD

I make educational tutorials for educators. I also created a weekly vodcast/show with a FCE HD intro. I wish to import the SnapzProX 2.0.3 (SP) vids into the FCEHD intro and export for vodcast for web streaming. My vodcast will premeir in the fall of 2007.
I found that SP seems to best export to FCEHD as an animated movie file. However, I am unsure of how to get the best quality mp4 when exporting from FCEHD. What are the best settings to get a 640 X 480 web video. I can go smaller, but in many cases my teachers wish to see a larger video so they can read the text on the screen. Am I stuck with a tiny 320 x 280 window for tutorials on the web?
I tried manually upping the size when exporting to mp4 and the video was extremely blurry.
File size is an issue... my tutorials are short (about 2-5 minutes) annd I wish to keep them under 20MB.
I watch Atomic learning vids (www.atomiclearning.com)that are fairly clear and can stream from the web. I called them and they also use Snapz ProX for screen capture.
Any ideas on how to export from FCEHD to the web and still have a fairly clear video?

The codec with the best quality to size ratio is H264. This is what the trailers on Apple's quicktime site are made with, and is capable of very high quality results with (relatively) small file sizes. However, it requires that people have Quicktime 7 installed in order to view it. To support older versions of Quicktime, I would next recommend the mpeg4 codec at around 300Kb/s. You might have some trouble staying under 20MBs at 640x480, though.
You mentioned blurry video when you uprezed to 640x480. You must remember to always convert from your highest resolution. If you converted a file from 320x240 to 640x480, it will get very distorted and pixelated. Also, if you're coming out of SP at a resolution smaller than 640x480, you will also get bad results. Remember to always record at the highest resolution/quality possible.
There is never any one size fits all here. It all depends on what the source material is (graphics and low movement always compress better than live action and high movement. Screen text tends to compress poorly), and what the needs of your viewers are (size vs bandwidth). So your best bet would be to run a lot of tests with a multitude of configurations on a short sample of your project. Then pick the one that seems most suitable.
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Please help! Screen Capture resolution for Flash

Hi,
When I screen capture [using RoBo ScreenCapture] either web
pages off the Net, or dialog boxes of programs [I'm using Flash for
a presentation instead of PP] the images are pixelated or fuzzy or
well, not good enough.
Let me explain In using RoBo, I make the capture at the
highest Jpeg resolution possible. When I bring the jpeg into Flash
[import directly into Library] and bring on the stage, I have to
resize the image because it is too big for the stage [being
800X600]. The projector I will be using for the presentation is
800X600.so I set the stage for that.
When I publish the file and review it [setting my monitor to
800X600] the images look terrible.
Maybe I should explain that when I do the screen captures at
first, my monitor is set at 1600X1200.
Should I set it at 800X600 when doing the captures first? I
mean, does this affect the final output of the resolution of the
jpg's when they are placed in Flash after the capture and import
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I have had to make captures of web pages, so I have my
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My questions are:
1. Should I do the captures with the monitor set at 800X600
if the Flash stage is 800X600? If so, why?
2. If the projector resolution is 800X600, can I set my Flash
stage at a higher size [resolution], say 1024X768? Will that
actually affect the resolution when the Flash movie is projected on
a projector with an 800X600 resolution if the Flash movie stage is
larger?
3. What affects the final resolution output of the BMP images
[jpeg's] in Flash for a presentation like I am doing?
4. What size should I capture the images at so I don't have
to resize them in Flash?
WHAH! I just want this presentation to be successful. It's a
training session on educating folks on computer virus
prevention/protection from and ID theft, something this world is in
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Thanks in advance form anyone who can help me,
Ellen

> Maybe I should explain that when I do the screen
captures at first, my
> monitor
> is set at 1600X1200.
> Should I set it at 800X600 when doing the captures
first?
A screen capture captures whatever number of pixels you are
grabbing. If
your monitor is 1600x1200 and you capture the entire screen,
then the
resolution you have captures is 1600x1200.
Then two things are happening:
1) you are making it a JPG, which is lossy compresion
2) you are shrinking it to 800 x 600.
To shrink it, Flash has to 'throw away' 75% of the pixels of
the original.
So, no matter what, you are ending up with a lower resolution
image than
what you started with.
> 1. Should I do the captures with the monitor set at
800X600 if the Flash
> stage
> is 800X600? If so, why?
That would make sense. Why? You can only show 800x600 pixels
in your final
presentation. What's the point of capturing more than that?
> 2. If the projector resolution is 800X600, can I set my
Flash stage at a
> higher size [resolution], say 1024X768? Will that
actually affect the
> resolution when the Flash movie is projected on a
projector with an
> 800X600
> resolution if the Flash movie stage is larger?
If the images are that resolution, then yes, if you increase
the size of the
flash file, you should be able to see all of the pixels at
that particular
resolution.
> 3. What affects the final resolution output of the BMP
images [jpeg's] in
> Flash for a presentation like I am doing?
As long as you bring the images in at 100%, the available
resolution of the
images shouldn't change at all.
> 4. What size should I capture the images at so I don't
have to resize them
> in
> Flash?
'Actual' size.
> WHAH! I just want this presentation to be successful.
It's a training
> session
> on educating folks on computer virus
prevention/protection from and ID
> theft,
> something this world is in dire need of!
I'm not sure what RoBo is, but have you considered using a
product like
RoboDemo for this type of thing? That should handle
everything for you.
-Darrel

Screen-captured movies are pixelated

I am capturing video from my screen as I navigate within a software application (we are making training videos). The Quicktime movie that is produced at the end of the capture is flawless, but when I bring it into Final Cut Express, the final movie is pixelated and un-readable. I am using an application called iShowU to do the capture and have the video set at MAX and 40 frames/sec.
Has anyone had success capturing video from the screen and incorporating that video into Final Cut Express? I am also having similar trouble with images exported from PowerPoint, even when they are exported at 1200DPI PNG.
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If you intend to output on video, like tape or DVD, then the way to do the screen capture is to rent a scan converter and record in a digital video medium, either on tape or directly to computer in a correct standard video format.
If you're going to deliver on the web then you can use computer resolution to scan your material. You would however then need to work with a resolution independent editing application that can work in different codecs that are suitable for this, like Final Cut Pro.
If you are only doing simple editing and trimming you might also be able to use the QuickTime Pro player to trim and assemble screen captures.

Importing Screen Capture Movies

Hi. I'm a very new user to Final Cut. I'm trying to make very simple 1 to 2 minute demos of how our company's software works. I've experimented with i show u and snapz pro for capturing screen activity. When I playback the captured .mov files w/ Quick Time they look great. As if I were actually looking at my monitor. When I import them into Final Cut Express, they look like *****! I've used files that were compressed with H.264, DVPRO NTSC and even uncompressed .mov files. Once I render them, they are not clear at all. What might I be doing wrong?

This is very difficult to do well with FCE. It's much better in FCP.
What size are you making the captures? FCE is resolution specific, so ideally you should make them at 1280x720 using the Apple Intermediate Codec.
When you import the files, what frame rate appears using iShowU and SnapzPro? Check item properties of the clips.

Need latest protocol for preparing movie for web in X

Hello. The basic problem is slow start on You Tube. My general question concerns preparing a movie for the web; not restricted to You Tube.
In FCP 7, it was export using QT conversion, to Quick Time Movie using broadband Med or most recent settings, choose H264, choose custom size 16:9 HD 1280 x 720p, prepare head for internet streaming by choosing quick start ,
adjust settings, and save. Then, Open .mov (usually 1 G for 3 minutes) in QT, choose export to web, transcode, and send 50-100 Mb M4V or sometimes MP4 to Host. No problem.
When I open an .mov prepared in X, the QT Player no longer allows the same options as it did when processing 7 movies. Am I missing something? I click export to web with the new system and it just starts in coding.
I appreciate the automatic features of X, but am having problems with both stutter start and a few more upload problems that I see as temporary.
Thx. www.youtube.com/user/edwardshaw1
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Ed

Check your Applications > Utilities folder. That's where the OSX Installer moved Quicktime 7 (also known as Quicktime Player) when Quicktime X became the standard player. Your pro license should still be activated. If you don't find it there and you have a Snow Leopard (or earlier) installer disk, you can find QT7 in the Extras folder. Make sure you do NOT overwrite Quicktime X when you move or install QT7 (both are originally named "Quicktime Player" - but you can rename the older Quicktime Player to "Quicktime Player 7" before moving it into your Applications folder.)
The problem with MPEG Streamclip and other "third party" conversion software (like ClipWrap and Smart Converter) is they use FFMPEG open source x.264 codecs. Apple's H.264 codec is superior (arguably, marginally better... but better.)
YouTube will "respect" your upload if it's already done well (to their specifications.) Otherwise, their software will recompress it.
In QT7Pro, you settings should be:
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Frame Rate 30 (or 29.97) fps (29.97 is the "true" 30...) [Even if your project is 720/60p - YT wants 30]
Keyframes: Automatic
Frame Reordering : OFF!
Data Rate: (I'll get back to this)
Optimized for: Streaming (only allowed with Best Quality encoding setting)
Quality: (if you specify a data rate, you only can use "High" -- and you *should* specify a data rate)
Encoding: Best Quality (Multi-pass)
Audio:
Format: AAC
Channels: Stereo (don't think it matters)
Rate: 44.1KHz
[show advanced settings]
Render settings (doesn't matter - normal is fine)
MPEG-4 AAC Encoder Settings:
I use Variable bit rate ; Sound Quality at 128 - 160kbps (about 2/3's to Best on the slider)
(you can use a constant bit rate - i think YT allows up to about 192kbps, but I don't "push it")
If you fall within these parameters, YT is not likely to futz with your vid, you'll get what you put up.
Now, for the Data Rates:
For 1080/30p (29.97p) I've found that 4Mbits/sec is adequate for most video (most of mine are tutorials). If you have sections of your video that have something like trees blowing in the wind shot against a bright blue sky -- you will definitely need a much higher data rate (check your transitions too, they can be subject to some nasty blocking/artifacting when highly compressed). To figure out how much, take a 5 second clip* of the highest action and transcode it at - start at 12.5Mbits/sec (or 12,500 kbits/sec) - and see if you notice any "blocking" - if you do, crank up the data rate another 500-1000kbits/sec (or more if it's pretty bad). If you don't — try optimizing your compression by reducing the data rate until blocking appears. You shouldn't need to exceed 18Mbits/sec... Upload your 5 sec clip to youtube and see if it works out okay. If so, just delete it. Transcode your video to those specs and upload to youtube. Remember your settings - they'll serve you well.
For 720 video, 3200kbits/sec is a good starting point. 480 - 1500 kbits/sec. and so on...
Bandwidth (aka data rate) is **key** to good video. The more compressed your video is, the more YT likes it. The more YT likes your video, the more likely they'll leave it alone and just pass it straight through. (I have seen them pass through data rates up to 18Mbits/sec. Just follow their rules.)
[*In Quicktime 7 Pro, you can set an in and out point anywhere in your video by typing 'i' for the in point and 'o' for the out. Copy (Command-C) the selection. Command N to create a new player and paste - and you have your 5 (or whatever) second clip.]

Optimum Settings for Creating .MOV for Web

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Thank you for your reply. I take it then that current default settings are OK.

Video screen capture capability for ios5??

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Screen capturing method for InDesign files

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Thanks,
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Compressing movies for web use

I have just finished a movie which is now about 6 gb. I do not have a .mac or iweb account. I am looking to upload this on youtube or myspace. However, it needs to be down to about 100 mb.
How can I convert this to a wv format or anything of lower quality??
thanks.

III. hand for iSquint...
have a look in its options:
1) select "for TV"… that generates an mpeg4 ("iPod" generates h264)
2) push Quality slider to the far right, max... click expert options (my user interface is German, correct?)
3) youtube.com requires 320x240
4) bitrate & fps: you reduce the final file size with that; and you set the quality.. NTSC has 30fps, but 15fps cuts the size in half... but movements aren't as smooth...
for publishing that files on your own site, 500-700 kB/s result excellent quality, 200kB/s still acceptable 8depends on content & your personal threshhold)...
my experience with youtube.com: it adds ALLWAYS compression artifacts... no sense to go beyond 300-400 kB/sec
5) you should choose deinterlace
and you can spare some MB by reducing audio quality, I do use 60kB/sec, 22050HZ, mono...
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Best screen capture resolution for FCP

I'm making some tutorials of various computer software.
I'm going to edit them with FCP.
I'm using the MAC built in SHIFT-COMMAND - 3 or 4
in order to snap stills off my screen, and then
import into Final Cut Pro to edit the tutorials with.
The stills, once in the timeline, look pretty fuzzy and
unuseable.
What have others used in terms of resolution, format and such in order to end up with captures off your screen that you'll bring into FCP that end up looking good if you're
going to end up going to video or DVD?
I also have SNAP PRO X to work with, but I still haven't
found the right format or resolution to get around this problem.
Any input would be appreciated.
Thanks.

Without going into DPI (which is really meaningless in FCP land...as has been argued again and again and again...although if you MUST apply a value just stick in 72, but really it has no effect) the pixel dimensions of stills to import for FCP FULL FRAME are 720x534. Because stills have square pixels and FCP uses rectangular ones. If you want to do any movement on the stills, just increase the dimensions PROPORTIONALLY. 2x would be 1440 x 1064.
Oh, and as for the blurry issue:
#2 Playback is blurry
Shane's Stock Answer #2:
ONLY JUDGE THE QUALITY OF YOUR MATERIAL ON AN EXTERNAL NTSC MONITOR, OR AT LEAST A TV.
1. Disable overlays on the canvas
2. Make sure you've rendered everything (no green bars at the top of the timeline
http://docs.info.apple.com/article.html?artnum=24787
DV footage requires large amounts of data and many computations. In order to maintain frame rate and be viewable at a normal size, only about one-fourth of the DV data is used in displaying the movie to the screen. However, the DV footage is still at full quality, and is best viewed thru a TV or NTSC monitor routed thru your camera or deck.
For this, and other exciting stock answers visit www.proapptips.com

Advice on compressing screen capture movies for web ?

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