WWDC2004 Session 719

Transcript

Kind: captions Language: en well good afternoon everybody welcome session 719 QuickTime Pro in your workflow I'm Amy Nugent product manager from Apple for the core media technologies and I'm here to welcome you today to a session by francesco steve on we're very lucky to have him he's been involved with Quicktime both professionally and as an educator for more years and i think he would prefer I don't reveal how everyone please extend a warm welcome to Francesco and we'll have a great session and do Q&A at the end thank you very much good afternoon everyone first of all let me get used to the microphone so so that's the first thing it's going to take you a couple of minutes to do that but what we're going to do today or my plan for the session is to raise awareness that QuickTime is involved in most of the multimedia productions that you might be doing or other people might be doing sometimes it's under the under the hood and people don't know about that but in most cases that that's what happens another thing that I want to cover is is what you can do with QuickTime Pro that you could do another software but you don't necessarily need to do it in that software an example is having to go to Final Cut Pro to edit or to put together a series of slides or a series of images you could do that with QuickTime Pro without having to wait for the long boot Final Cut Pro oh I mean of a QuickTime Pro Final Cut Pro sorry about that and in some cases QuickTime Pro is actually faster to use than than those applications on just the example of booting up Final Cut opposite to the player so what you will be learning in this session is what is QuickTime Pro how and when you may want to use QuickTime Pro instead of other applications and how it's also involved in the typical workflow which goes from acquisition editing authoring and explaining the medium so QuickTime is involved in all of those cases and I have a few tips and tricks here and there that do relate to the workflow so because it's workflow my topic is my topics are going to be jumping all over the planes from editing to or rather from acquiring to editing authoring and deployment and therefore I'm going to be using a number of applications final cut a lot of it with QuickTime Player and so forth so I'm going to be jumping back and forward between applications so this light represents the Final Cut Pro not Final Cut Pro QuickTime Pro is involved in the whole process from the acquisition to the deployment this slide originally came when OS 10 was was released or announced actually and one of the important things that I want to point here is that QuickTime is at right on top of Darwin which means that it's very very close to the OS and relatively apart from the applications and the reason why I'm saying this is because think of QuickTime as a big engine that a number of applications can get access to so so keep that in mind in terms of QuickTime what is QuickTime Pro QuickTime Pro it's not just a player you've get you've gotten a number of description about what QuickTime is and what QuickTime Pro is but one of the things that it does is unlocks the professional as they call it capabilities of the QuickTime Player and the QuickTime plug-in as well as preview so so how many people knew that preview was what part of QuickTime Pro usually not many people know that but once you get a license for QuickTime Pro you can actually do exporting out of preview for the most part is not that useful there is one feature which is to export what they call a QuickTime image file and and you can do that with a QuickTime Pro or with previewing QuickTime Pro now in terms of of the workflow on in terms of acquiring assets as you should know by now and if you don't I'm telling you right now QuickTime has a really wide gamut of file formats that that it can import over 200 media which means that you could be bringing in flash or JPEGs or tip files or pic files text video of course even a vis and so forth so in terms of the acquiring process it's not only the acquisition of digitizing video but also bringing in existing files like that that that you may have so so how is QuickTime Pro involved or how is quicktime involved and I have this other slide which which has a better representation how all of the applications get access to the engine the QuickTime engine that is under the OS and I think at this moment I'd like to switch over to my machine over here and what I'm going to do here is I have my eyesight running here and I've got this a really simple application that I download from the developer site at Apple and if everything works alright oh ok this is working for you did application what it does it just gets access to the digitizer in QuickTime and the reason why I'm showing you this guys is because it's a very simple application that gets access to that that layer that QuickTime later that I show you earlier and and it's QuickTime the one that should be doing the digitize now in this case I'm seeing not to be having too much luck here so I'm going to quit that and I'm going to ask you guys to switch over to this lights piece ok so what I was trying to show you here is it was that the application was getting access to the QuickTime engine to the rendering or actually within the country in the acquisition of the assets but this is another example that I really like to show in terms of bringing media or how QuickTime gets to acquire media that doesn't necessarily need to be video so has anybody tried opening a PDF file for example with a QuickTime Player well that's something that you can do and the important thing that I want to stress here is that it is QuickTime the one that is doing the opening of a PDF file so if I could switch back to the demo machine clicks thank you now what I have here this is Final Cut Pro I've got a timeline there with two DV files but rather what I want to do is I have another PDF file on the hard drive this is the developer documentation for QuickTime 6 on a PDF document and as you can see it has a number of number of pages it's a documentation for QuickTime 6 on a PDF but one of the things that you could do you can actually drag and drop the PDF file into Final Cut Pro and now you have a PDF in Final Cut Pro I'm not exactly sure what you want to do that there may be some cases where you actually have sources coming from a PDF file that actually has a number of pages but again this is what I want to do here is is from the acquisition point of view I'm acquiring a PDF out into the Final Cut Pro application and I can dump it into my timeline that's a little bit wide just zoom back from here oops so now as you can see I have a PDF document inside my my timeline so can I switch back to the slides please this is what I was trying to do with with acquiring video from hack TV activies a free application that you developers can download from Apple it's meant for developers as an example of code how they can integrate the digitizing capabilities of QuickTime into their applications I'm not a programmer rather I'm a content creator and for content creators if you guys want to try that application you can download it it's really tiny and for example plugging your eyesight or another video camera or if you have a digitizing board you can use that to capture content with with QuickTime now in terms of acquiring assets I had mentioned the idea of bringing in a series of images and what I'm going to do here is I'm going to import a series of images that we're taking from a still camera so this is not video it's rather taking from from a still camera so I'm going to ask if I can switch back to the demo machine thank you very much and import medium so I have here a number of pictures where we're taking outside of my window in Vancouver and if you can look at which is one of the pictures and let's see the actual science it's a really large image and this is a typical time sequence or timeline sequence that was shot I think every two minutes the pictures were taking so what I'm going to do in this case is I'm going to make a series or rather a time-lapse movie with a quicktime player if you wanted to do this in Final Cut Pro you could bring all of the images into Final Cut Pro change you have to go into Final Cut Pro preferences change the settings for how long you want individual images to be or still images to be and then lay your images onto the timeline in this case the process is going to be slightly different back in the QuickTime Player there's this option in the front of the file pulldown minute says open image sequence and the idea here is just to select the first image in the sequence and have all of them sequentially named so in this case is capture 0 0 91 92 and so forth all the way to 165 so I'm only selecting the first image and Final Cut Pro is asking me what frame rate I want now I could go for the typical frame rate of video which would be roughly 30 frames per second but instead if I do that I'm going to have a really really short movie that is going to play really really fast so instead of doing that rather what I'm going to do is I'm going to switch to 6 frames per second and and have that movie a little bit longer so each frame stays just a little bit longer on the screen so off it goes and as you can see it's a huge huge huge image maybe the easiest way to do this is to try to resize so in this case I was able to acquire by my series of images into a linear QuickTime movie it's really large and we just bring it to half size which barely fits on the screen here and if I play it as you can see it's it's the two series of of images so there you go that's a nice day in Vancouver one of those days are being arranged so you have to take pictures of a that doesn't rain in Vancouver really any Canadians by the way in the audience right on well happy kind of the day all right in terms of a brief tip that I have for you guys when when you're acquiring content from Final Cut Pro or with Final Cut Pro is as you guys know when you're shooting your content before you shoot you should have your viewer videotapes Striped which means having timecode laid onto them onto the videotape so when you start shooting you don't have a broken timecode so if I can switch back to the slides please so a little tip that I have for you guys when you're working with Final Cut Pro or rather if you have Final Cut Pro to stripe your tapes you just use this little feature in the Edit to tape option under Final Cut Pro by pressing on that little tiny black button what it would do is would print black frames onto the whole tape and will actually lay down a timecode track onto onto the tape so when you go shooting with that tape don't get broken timecode and this is very important when you get into the acquisition process and when you go on and capture your your content into Final Cut Pro that way you won't have problems with with broken timecode so that's it for that position content now I'm going to talk about the editing process in front of weathering in the QuickTime Player and instead of doing the typical thing of actually showing you how to copy and paste frames and fast-forward or go frame by frame in the QuickTime Player rather I'm going to refer you to the help system in QuickTime Player another thing that I see actually Lynda Weinman here so I can always refer you to her book on QuickTime so which which talks about up anything with with QuickTime Player but rather what I want to focus is the concept of reference movies one of the things that is great with Quicktime that sometimes is misunderstood is that QuickTime can work with what is called reference movies which means that the media doesn't necessarily need to be duplicated onto the drive you can actually have it written only once onto the drive so it would be an example of what you can do the idea of reference movies is that you can have the media written only once onto onto the hard drive and depending on where it comes from you can actually take that same year to different applications without having to rerender the media or without having to duplicate the media and the hard drive so if I can switch back to to the slides come into the demo machine clicks thank you so what I have here is a movie that it's actually made out of I don't know how many images were wearing my folder but it's a series of images and when I play it it's actually making a reference to each one of those files onto the hard drive so a typical process would be to actually save or export this movie as a self-contained which by doing that would actually duplicate the media and the hard drive it would keep my original images and then make a new copy of this large movie but rather one of the things that I can do now is save this document just click on save without options save normally I'm going to save it to the desktop so I can find it reference moving very moving and movie and in this case what it's doing or what it did and just go back to the finder here really quickly it made this document but if you take a look at the file size it's really really tiny only 44k on on disk and the reason for that is because the file itself is actually making a reference to each one of them of the documents of the QuickTime movies sure all right so I sound different do I sound older I sound louder I think okay so what I was trying to show you here is is the reference that this document is actually making to all of my picture files elsewhere on the harddrive and as you can see here in the QuickTime or rather in the movie properties window I can see all of the files are actually being referenced from this original document now the whole idea of this doing this in terms of a workflow is I don't need to duplicate or I don't need to make a new really large file to be able to take it for example what I had in my slide before into compressor into After Effects or into anything else what I can do is I can take this reference movie into compressor and use that as my source instead of having to render having to save as a new copy of the document onto the hard drive so if I can switch back to the lights please so this is what I just did in this case I say what what QuickTime calls save is not safe normally or as normally which means making those those reference files now another thing that you can do or to put it more in typical cases with Final Cut Pro is doing the exact same process that I did but rather with Final Cut Pro so if I can switch back to the demo machine this is my Final Cut Pro timeline and I have let me get rid of the PDF and zoom into my timeline so it's actually a bit more interesting so what I have here is two two DV files some titles and let's say that we want to compress those things so that we want to let maybe take them to after-effects or maybe take them to another application on the same machine for compression maybe squeeze if you want to if you want to use squeeze for for the lever on the web I'm going to do a reference moving out of Final Cut Pro in this case and the process would be to go into the export option select QuickTime movie which they change the wording in in in Final Cut Pro for get rid of all of that noise and this is how you make a reference movie so it doesn't take as much Drive things you simply uncheck that thing where it says make movie self-contained you uncheck that thing and you uncheck that recompress all frames so by doing this it's going to be saved into my folder actually didn't put it onto the desktop well you didn't even see that the the progress bar because it went so quickly the only thing that it did it it wrote a really tiny reference movie even though it has a Final Cut Pro icon it is a QuickTime movie and if you take a look at the files that this thing is being referenced to it's actually referenced to my sequence to my VB file and to my demo we found that our elsewhere on the hard drive and the whole media is here everything is here but if I take a look on the finder the file size of this little tiny reference movie would be comparable to the one that we had before a little bit larger one megabyte there's something rendered in there so as you can see in terms of our workflow you can save a lot of drive space by by using this this method here so can I switch to the slides please so that's how you can make reference movies on Final Cut Pro one important thing about reference will be solid mention it later but this works great only when you're working on the same machine this is the making the reference movies out of the QuickTime Player which does exactly the same thing slightly different interface slightly different wording but it does the exact same thing now a few tips on on editing for quicktime particularly for deployment also the QuickTime that you're going to be doing is going to be for web deployment or it's going to be for cd-rom deployment or for DVD which means compressing the content and this tutorial - doesn't have to do much with QuickTime Pro as as per se but it has to do with video digital video in general and definitely what you want to do is is avoid changes on the screen that's that would be the best way of summarizing all of that stuff that is on the on the slide here so in two words avoid changes if you have fast motion if you have fast text or if you have scrolling text you may want to avoid those same thing with dissolves and complex or transitions those are going to have a terrible impact when you get to the compression part of your of your project now another thing also related to - editing has to deal with previewing DV in info resolution has anybody actually noticed you have a DV file you open it up in the QuickTime Player and it looks really bad really pixelated I get this a lot of times with my students they they see their files particularly one with text or the kind of the files that have text and those are the files that I made if I can switch back to the demo machine please what I have here is the two DV files that I show you earlier maybe this one helps keeping here there we go and I don't know if you guys can know this particular you guys on the front here you're going to notice that the text looks kind of like blurry on the edges which in this case is a DB file but don't be scared all the media is actually there you don't have to panic you don't have to go and render these humongous file with with maybe the animation codec Tibet to get the quality that the DB file should have in fact the quality and all the data of your DV file is there what QuickTime does rather for the sake of of of speed and playback speed real-time playback speed is it sacrifices some of the quality so it can play in real-time so if you guys want to really check out the quality of your files and this is just for previewing purposes what you can do is is turn on a property of the video track so what I did this here is I went into the movie pulldown menu on the QuickTime Player get movie properties and this is a property for the video track one of the things that you're going to see it's a DV file 720 by 480 ntsc and this is optimises quality and by default it has that high quality checkbox disabled when you turn it on now you get to see the full quality of your video now in this case you can actually see the inter links of your DV file that's that's actually the reason why I use this example here to show how the inter links disappears or not and take a look at the edges of all the text I'm not sure if you guys at the end can actually see the detail here I have another example and it's happening that it's doing the exact same thing which is just showing a preview mode without without rendering all the quality now when you turn that on you actually get to see even the two fields so so don't be scared all your qualities there now one thing about this this checkbox in most cases when you're previewing your content playing it back on the QuickTime Player you don't want to have that enabled because by enabling that check was for you're telling QuickTime to do is give me the data regardless off of the framerate so by enabling that high quality checkbox what QuickTime is going to do is going to try to render every single field of every single frame and therefore taking more CPU so so it's great just for previewing individual images making sure that the quality and your edges and and your text be so sharp as you're expecting but for playback purpose is much better to disable it as as the default is and I'm just playing that will give you them full-time rendering or full-time playback on on QuickTime Player okay so where am i okay now let's move on onto the editing side of things so if I can switch back to the slides please for the authoring QuickTime Player is relatively limited in terms of authoring but you can still do some of some of the of of the authoring and one of the things that I personally love about the QuickTime Player is that it could be an excellent learning tool and excellent learning to buy by seeing what other people have done in the past or with their own files so what I'm going to do here is if I can switch back to the demo machine I'm launching Safari and I'm going to go and download one of the movie trailers from the Apple site and to tour - it really doesn't matter which sort of matters which file I download but I'm going to wait for it I'm not going to play now I'm going to wait for the whole download to happen and I'm going to use QuickTime Player Pro just to analyze how this movie was compressed this way I can get a pretty good sense of what other people have done to get great quality video if I don't know exactly for example what frame rate to choose or what battery to choose or or what window size to choose so I'm going to use this as a as a learning tool it's going to take a few more seconds actually we may be able to play it so if we can get sound for this machine of egos ago I've become I sometimes don't talk to another living soul some days or trust no one nothing it's great life wasted bull gram was the artist man I've ever known and I've known if do you believe me where you going what do you think he would do he changed happy he won't be back I don't know we're really very either he's got enough his brother's manic asking questions or overbearing he's back Justina dumped ever underestimate will brain is a fierce man will go the distance this is kill people I knew him you know what I want to know why he died away he died it was suicide but you're not sure I was there anything I started odd - you know a nose weapon what could he possibly find out Tommy there's nothing to tell don't lie to me he's dead does it matter who matters what kind of man am I looking for each gun took like his brother [Music] people like us now change you're wrong you're wrong about most things most of the time [Music] someone's going to diet just have to wrap behind either did about where you can breathe is day it'll destroy you what are you doing here [Music] okay so there you go you have a really nice movie compressed by somebody else and let's say that you want to work with your own content and try to at least learn what these guys have done with their file so what I'm going to do here is is save this file as a QuickTime movie or as a source it really doesn't matter that much up to the desktop so I can find it and using the QuickTime Player I'll be able to figure out a number of information or a number of pieces of data about this this movie just do some housekeeping here so I'm going to get that movie properties window again there's information about the annotations particularly image I'm interested in the video track and the soundtrack so for the video track we can find out the format so in this case we're learning that this guy's use a Sorenson video 3 codec there may be reasons why these guys chose maybe to use Sorenson 3 instead of mpeg-4 we can also see the size 480 by 360 so in terms of our workflow we can actually get those numbers down and maybe use them as a as a tryout to see how it works out framerate in this case the movie is 24 frames per second and if you were to download the smaller movie usually you would get to see something like 12 frames per second for the encoded version a little bit of a note here that doesn't necessarily mean that if you shoot your DV file or your content with video you should compress to 24 frames in this case there compression is done to 24 frames basically because their source is the film that was actually shot at 24 frames per second so if you're going to be working with video rather you should be working with multiples or submultiples rather of the original frame rate so if you were working with video it would be 30 or 29 97 15 and so forth another thing that we can find here this is this is most important is the data rate this guy's chose for for the video and in this case they're using a data rate of 180 kilobytes per second and now you have to be a little bit careful with that number here because QuickTime Player traditionally died and has always seen ever provided a data rate in kilobytes per second and we're using with networks you're actually dealing with kilobits per second so there's there's an Eightfold difference in here so if you want to get that better 18 in kilobits per second you would have to actually multiply that by 8 which is a really really high data rate that's why the video looks so nice I'm going to come back and talk about that data rate in a minute now for the sound side of things we can also find out the format in this case it was compressed with a cue design music - that was the correct that was used they decided to go mono for some reason I guess to save to save bandwidth and maybe the reason to use cue design - and so engine 3 that these guys chose wants to be able to be compatible with older versions of QuickTime for example QuickTime 5 more information regarding moving or again the soundtrack is the sample size which is 44 point 1 kilohertz and for some reason QuickTime doesn't tell you anymore the sample size most likely its 16-bit as to where the file size or the data rate we can see that the sound part of the movie takes 2.1 megabytes and the data rate of the soundtrack is a 15.6 kilobytes per second so in terms of a word plugin what you could do is take these numbers take them into your movies and try compressing them with those settings and and at least it's a great starting point as to where what you should be doing to tweak your your settings for compression so if I can go back to the slides please so this one we've done we've used the movie properties to learn from somebody else's work which is a great tool now one of the things that are one of the options that you have in the QuickTime Player when you're compressing content is to export the movie instead of saving ass and there are two major differences about the exporting and an and the save as option in the case of exporting what you will be doing is you would actually be compressing the content to a specific color that you choose or you will be hinting a movie that has already been compressed the hinting part is is for for a QuickTime streaming server but for the most part when you're exporting the important thing is that your recompressing the content so watch out for that when you go file export you're actually recompressing another thing that you could do with a regular with the export process you can resize your content to match some other window size the same thing is applying a filter and the important thing here is that it generates new media meaning it actually goes through the through a process a compression process most more specifically so if I can go back to them to the switch to the demo machine clicks what I have here again is the series of frames that I had made before and I'm going to go through the exporting process and particular I'm going to make an emphasis on the data rate trying to explain that a little bit so let's say that I want to compress this movie that I want to make this movie that right now references all of my single frames let's say that I want to make a web version of this and target an audience that is maybe running at 200 kilobits per second actually I should know what batteries I'm going to be targeting let's say that we rather going to target somebody that it's running on a 350 kilo bit per second bandwidth connection so I'm going to save this onto the desktop and I'm going to call it web movie I'm exporting as a movie to QuickTime moving now in this case I went to the file export option which means that I'm going to recompress I'm going to make new media out of this but clicking on the options button I can choose the different settings and let me change the size first so let's say that we're targeting three hundred and 50 kilobit per second audience somebody that would be on a fairly good ADSL connection so I'm going to change the size of this humongous movie to something more manageable like 256 by 192 so that's going to be a relatively small size but should yield really nice quality for for a three hundred and fifty kilo bit per second battery now I'm going to change the settings for the video and there are a ton of codecs that are available for you depending on what you want to do so for deployment most of the times you would want to focus on either Sorenson 3 Pro if you do have a pro version and another great alternative is to use mpeg-4 so I'm going to use mpeg-4 for the time being now frames per second in this case my framerate I don't know if you remember but my frame rate was actually 6 frames per second so I'm going to leave it at best and what best does it actually leaves the original frame of the movie as is so it'll maintain the original frame rate if you had if my source was actually video it would be kept at the original 2997 now these two options down here are usually a point of confusion now who doesn't know what that keyframe every frames mean everybody knows okay a few of you guys don't know well that keyframe every 24 frames actually has to do with with the codec what the codec does is it tries to analyze one frame and then the consequent the following frames so if there are no changes in the following frame all right if there are a few changes in the following frames what the codec does just saves those changes without having to save the full frame so keyframe every whatever number what is that what it does is it actually refreshes that original frame of video so it has a new starting point for comparison of the following frames as a rule of thumb every every 10 seconds is is perfectly fine so if I'm running at 60 frames per second and I want to keep it at every 10 seconds I would want to enter in this particular Kings I want to keyframe every 60 frames now this is this is this is it this is where where the rubber meets the road as they say and it has to do with the calculation of the data rate for the video so I'm going to switch over to the slide please and do a little bit of an explanation here so here we go it's a little bit of math it's really basic matter don't worry we say that we wanted to target a data rate of 350 kilo bits per second so that means that we're going to have audio and video that when you add them up each that up to about 350 kilo bits per second now in this case III split it up in 310 kilobits per second for the video and about 40 kilo bits per second for the audio now in this case I'm kind of like maybe what I should do is I should I should open up a DB movie instead of all of the slides that I have here because they don't have any sound actually I don't have anything with sound but anyway so in a typical situation I'm dividing here 310 kilobits per second for the video and 40 kilo bits per second for the audio so when you add them up it goes to 350 now the problem is that the QuickTime interface here where it says limited data rate it says limit data rate to whatever kilobytes per second but we were doing our calculations in kilobits per second so the secret here is to divide the 310 kilo the kilo bits per second that we had or that we want to target if we divide that by eight that gives us thirty eight point seventy five kilo bits per second so that's the number that we have to enter in the quicktime player user interface if we were to enter three ten it would actually give us a movie eight times as large as what we would be expecting which is not what we want so this is a typical typical point of confusion I've seen throughout the years from from my students they enter the 310 and boom the movie looks amazing definitely because you have an eight times the battery that you're expecting but the father is just undeliverable over the web so if I could switch back to the to the computer here what I would be entering in this case it would be that thirty eight point seventy five kilobytes per second that should match up to to the 310 kilobits per second so so that's a very important process that or not process but step that I definitely wanted to mention when delivering the content over the web now in this case I don't have any sound but if I was to use the let me actually try to get a movie that does have sound to show you the interface and I think this one does have sound or if he has a soundtrack even though he has no sound file export onto the desktop options we said mpeg-4 now this would definitely relate to this life that I had before I said soft multiple of the original frame rate so I'm going to drop it down to 15 frames per second rule of thumb off of a keyframe every 10 seconds that will be at around 150 and the battery that we had specified was 38 point 75 kilobytes per second now for the sound side of things I'm going to use mpeg-4 sound which is top-notch particularly at lower data rates so where am I missing here we go Apple mpeg-4 audio and this is kind of weird because the video did give me the option for the data rate in kilo bytes per second but when you get into the audio codec in this particular case and I think it actually most of the audio codecs would actually allow you to enter the the battery this is what is bitrate in kilo bits per second so QuickTime Player is a little bit confusing in this case by giving you one battery or one one unit in one case and another unit in another case so so watch out for that now from the site that I had before I said that the audio would take about or we take 40 kilo bits per second plus the other three ten from the video to add up for the three ten 350 so I'm selecting 40 kilobits per second and what the bitrate really means it means how much data is going to be taken to store the sound which is very different to the sample rate the sample rate has to do for those audio guys too how often is the computer actually storing a sample from from the original file and one of the things that the QuickTime Player does in this case it actually shows you involved what would be the optimum sample size or sample rate for that particular bitrate that you selected so in this case it's suggesting that I entered 20 200 50 kilohertz for my 40 kilo bits per second so I'm only back now this is another somebody was asking about this the other thing is what the hell does good better and best mean anyone test well what this means is and this is just for the mpeg-4 audio codec here in the QuickTime Player what it does it makes a trade-off between speed against quality so if you're in a rush go and select good but most of it your compression video you're not so much in a rush you definitely want to leave the video or the quick or the computer to do the best the best work for you so selecting best what it does it takes a little bit of longer but it does better or a best as it says there a process when it does the compression of the sound so there we go now this is also kind of confusing because I have a sample rate over here and I also had another sample rate over here so that's somewhat confusing so I'm matching the making sure that they do match and I'm gonna let go so I'm going to compress this movie won't take that long on the desktop just a few seconds long but what I want to see is if my data rate whoops was at one yeah that was the one I forgot to change the size remember that's why it looks so bad but the file size wise it should be my 350 kilo bits per second that I was expecting so if I get the movie properties appropriately for the whole movie should be the for the full size it's actually lower let me get the calculator just to actually do it right and we have the 36.1 kilobytes per second bytes per second right to get that into kilobits per second we would need to multiply that by 8 and in this case it's 288 kilobits per second so the movie itself ended up being somewhat lower from what I was expecting so so that's definitely good because you wouldn't be won't it would definitely match the audience the target data rate of the audience that I was looking for and and it would not take that much space on my hard drive now mind you that this is a demo with a really short movie so that's why the numbers are are relatively off there's no audio that's true there was there's no audio there well there is an audio track but but it's silent which is weird that's that that's another point of a white so small thanks a lot now another thing is in terms of the other of the workflow a huge element is Apple script and I really hope that you guys had gone to the AppleScript session that was earlier today because Apple script is most important especially if you're an Apple script you can do amazing stuff with a QuickTime Player so if I can switch back to the slides really quickly please in this case Apple provides a series or a collection of Apple scripts already written which are great surprisingly enough they had not updated them since QuickTime 5 but nevertheless they are very much useful today so that's the URL where you can get them from the Apple site just go Apple comm / Apple script / QuickTime and you'll be able to download this really really powerful collection of scripts so what this scripts do is they are divided in a number of files one of some of them which do run directly off the QuickTime Player and some other that some others that they run as as as applets so if I can switch back to them to the demo machine please thank you very much now in this case I downloaded earlier the Apple scripts on the Apple site and another thing that I did is in the Apple script folder of the Applications folder on your Macintosh there is this thing that says install script menu when you run that little tiny app it provides you with this little tiny AppleScript pulldown menu that now appears throughout the OS so let's see let me what am I going to do here we try to see this as a small movie that I had done earlier or not come on come on don't crash what I want to do is I want to apply a couple of Apple scripts that have already pre have already been pre-written for me or for us actually okay this thing is not responding so let me try that again [Music] okay hopefully this is going to work doesn't seem a my Kherson turn into a beach ball now go figure and the machine is somewhat sluggish anyway one of the scripts that has been or that it has been provided for for you is this is another question that I had the other day at the lab if somebody was asking how to make a movie safe disable so that when you put it on your website people view it but they don't save it onto their hard drive but that's a feature that QuickTime Pro offerings and there are a number of ways that you can get access to that little flag one of them is using live stage pro another one is if you're running always 9:00 you can do it with a little free app from from Apple called plug-in helper or you can also do it with Apple script which is what I'm going to try to do here but somehow this thing is not working for me so let me try that again okay I'm not going to compress the movie what I was going to do is I was going to compress the movie or use the compressed version and and apply my Apple script but I can apply my Apple script also to this movie so let's do two more things apart from making it safe disable I want to make it so that when it plays it goes full screen and another thing is that when it finishes playing it actually closes down so there's no chance that are giving relatively little chance for the user to to save my movie onto their hard drive so now that I have installed the AppleScript I'm extensions here I have these options as a QuickTime Player script and some of them they are organized by the type of functionality that you want to do so in this case I think it's under properties autoplay is one of them so I'm going to change the autoplay of this movie by default any QuickTime movie set by off or set to off so I'm going to change that to on so as one of the movie opens you should start playing automatically ok so that's actually being applied to my movie we said that we wanted to take it fullscreen as soon as it started as soon as it launched so that would be I think that's another property off of the movie oops robberies and at the presentation mode normal eluded normal okay prop rings presentation sighs all right that fits the screen so I want to go fullscreen okay so that sets it to go fullscreen and the last thing that I'm going to do is I'm gonna save disable and I think that's another property here right or we also said that we're going to do auto closed when done and I don't see that the save disabled is dance and auto close to true oh boy where was that option for safe disable actually I can do that from the droplet that is over here in the apple scripts that were downloaded Apple scripts droplets media type playback so as you can see some of the options that I actually did in the player I can actually change them as I drop it so I can grab a series of movies not only the one that I have in the foreground and and dump them on to my onto the droplets that the Apple has created here save as uneditable so that's the one so I'm gonna save this movie now and then dumped it into my or into the droplet to make it safe disabled save all those those changes so that was the one on the desktop so by dragging it on top of the applet now you should make it say the table so it's warning you once you do that you won't be able to recover your movie you won't be able to edit it you won't be able to extract the video track or anything else let's go so there you go so now if I open the movie you should go fullscreen it should play the whole thing and at the end you should quit OOP good not well it should be safe disabled now yeah I cannot change it anymore I would have to go back to the original but in this case I want to see if it gives me an error it should return an error saying that I cannot save it there you go so at least he gave me that error so that means that I cannot save it even if I put this movie in a web server or on a play on on the plug-in on the QuickTime plug-in you would not give me that option that that I had originally asked as save disabled so unfortunately the other scripts were not applied somehow and now that it's been saved disabled I cannot apply those scripts anyway it won't be able to save them but but in this case the point that I'm trying to make here is is that the Apple script that an apple provides are amazing its animation collection I don't know if you guys were were able to see the different types of Apple scripts as I was dragging or as I was looking for the one on my hard drive but there's a ton of Apple scripts that have been pre-written for you and the great thing about these Apple scripts is that you can still go and open them and edit them or learn from them if if you if you definitely want to try that out personally I'm not an Apple script guy is Apple script is so easy that I don't understand it for some reason it's supposed to be too close to English but I don't know if my accent is the one that doesn't work here but nevertheless the Apple scripts that they have been pre-written written by it by by Apple are perfect okay moving on can I switch to the slides please so that was Apple script now in terms of authoring mixing media types usually is a must when working with QuickTime and we're working with QuickTime Pro now most of the times when you would be doing advanced authoring you would be using some other applications like live stage Pro or I shell or some other applications for your for your authoring but in this case what I'm going to do is I'm going to make what I have is I have a QuickTime VR movie all of the stuff that we've seen before was video and sound but in this case I have a QuickTime VR movie and I've made this little flash animation that looks kind of like a target that just goes into the center so if I can switch back to the demo machine thank you very much this is what I've got I've got two movies here one of them is a flash track it's really tiny if we take a look at the file size on this document it's just 324 bytes for the SWF so this is the typical flash fife I think or flash for file doesn't do anything it just has a great background and a little ball that goes into the center and on the other hand I have this other QuickTime VR movie where I want to add this flash animation on top of the QuickTime VR and always stay there so has anybody ever done something like this plus in adding flash to a QuickTime VR with a QuickTime Player anybody great perfect so this is what you need to do the logic is is this the logic is to bring the flash into the clipboard then paste it on top of everything else onto the QuickTime VR now if I wanted to do that without changing the QuickTime VR right now I'm on the flash so I would go file AI mean edit copy so that brings it into the clipboard and if I wanted to just paste there or add it on top of the VR QuickTime does not allow me QuickTime VR is actually all disabled and the reason for that is because the to be able to have the Edit pulldown menu you actually have to have a typical QuickTime controller down there you have to have a timeline which of course QuickTime VR don't have QuickTime vrs don't have any timeline date there they render on the fly so the secret is to actually change the controller here one of the properties of alpha movie is the controller that it uses so I'm getting the movie problems for the QuickTime VR and one of the properties for the movie itself is the type of controller so I'm going to go to the movie controller and I don't know if you noticed but the QuickTime VR controller now becomes a linear video controller if you play it nothing happens it's just whatever it's seeing at that moment but now I can add on of this my flash so first of all I wanted to add it on top of everything so I'm going to select the whole timeline select all you see that the whole gray timeline gets selected now I want to add scaled which means whatever it's in the clipboard make it match my timeline add scaled right now we have the flash on top of everything else one of the great features about flash is that by default it contains an alpha Channel so the gray background that's just a background in my flash document but I can actually turn off that that background by applying its own alpha Channel so I'm switching to the properties of the flash track over here and one of the properties is the graphics mode and by the way to be able to change this properties for the flash track I still have to have the QuickTime control or the movie controller active so and as you can see there's a straight alpha that we can take advantage of the Alpha check the Alpha track in the alpha channel sorry on the flash track on the SWF on the Swift file and two more things that we need to do more one of them is if I was to go back and change the controller back to the QuickTime VR I would still not be able to play it back or have the QuickTime VR controller or controls as you can see I'm clicking and I'm dragging and nothing's happening and the reason for that is because the flash track is actually capturing the click so let me see if I can change that flash I'm going as another property for the flash track it's the only one that says properties here it says mouse capture enabled if I disable that the clinic is going to go through the flash track into my QuickTime vr so now I have a target me now don't you the great thing about this whole idea is that because it's a flash track on top of the VR the VR is actually a really high resolution I was using the free application that came with my Canon camera to stitch this VR but if I go full size or even full screen because the flash is it's a vector based on you mentioned it scales beautifully and the VR being high quality it still looks quite nice and nevermind the bottom so as you can see in this case we have the flash track on top of the QuickTime VR track something that you should not do is do this on a g4 because my VR is too large and I'm applying this alpha channel which adds a lot of CPU so that's what I love about this g5 and that's why I wanted to use this g5 to show this demo here but nevertheless when a PC would actually be so much smoother than been on the mattress because of the Alpha Channel so I hope that you really liked that one I personally loved that that example of just mixing the VR with with the flash so I've got just a few more minutes to show something else and if I can switch back to the slides blinks in this case I'm talking about save as when you go and save as a movie you have the different options of faster compress movie Heather and and what this does when you go and save as what it does it just copies the media of the existing file into into a new file now there are 15 more minutes so I still have 15 more minutes right Amy 10 minutes okay so in 10 minutes what I want to do is is the following I want to talk about deployment so far I haven't been able to get to the deployment even though it's most important and in this case I'm going to add myself with a few more applications and this is what I want to do you guys have seen on the Apple site that when you go to a movie or in the movie trailer site depending on the bandwidth that you've selected for your for your particular machine it would give you a small movie or a large

• movie well one of the things that you

could do is use those reference movies to deploy in different languages so what I want to do is I have two movies here one in English and one in Spanish it's the same QuickTime VR that I've shown you earlier but with text in English and in Spanish and what I want to do is I want to embed these movies on an HTML page and depending on the language of the user I want either of the movies to two to playback so I'm going to do this really quickly first off I'm show you this this slide here the applications that I'm going to use is this application called make ref movie from Apple which is available on the free tools and tips of the QuickTime site I'm going to use the QuickTime Player to create a dummy movie and I'm going to use this other application called page out X from QT Bridge to write the HTML for me has anybody ever useful or rather has anybody not seen that application before okay you guys are going to love it because it writes HTML no problem much better than than what you would be able to do with other applications okay so I'm going to start from from the bottom of my of my diagram back to the top where I have the two movies this is the one in English and as you can see it just has text in English at the top and what I did is I I brought in a flash track and I've got a Spanish version so so this one should be selected either or depending on the user's language so the first thing that I'm going to do is that reference movie and the reference movie is going to select either or depending on on the language of the user and that's where I use the application called make ref movie so when you watch make ref movie it asks you to save a movie in this case is it's a brand new movie that I'm going to create is going to contain no media I didn't and it's going to refer to either of the other two movies depending on the language of the user and I'm going to call that how do I call it I call it cutie cutie source on my diagram cutie source dot a movie and this movie is going to refer to a to vis so I'm going to drag both the eyes the one in Spanish and the one in English and I'm just going to drop them into the user interface and they appear here now this application allows you to select the type of or one of the movies either of the movies depending on a bunch of criteria and usually people use the battery for the bandwidth available to the user in this case I'm actually going to use language so this is the one in Spanish you can see the name over here this is the Spanish movie so I'm going to select this movie only if the user has a Spanish OS and I'm going to select the English version I could actually leave it unspecified pretty much just in any other kings and that's pretty much it we don't have to do anything else by setting those those preferences we should get either of the movies depending on the user settings so I'm going to quit this application save the changes and it should have made the reference movie now this reference will be fine if I launch it right now it gives me the English version but if I change the preferences I don't know if I can do that without an admin password if I change the OS to Spanish up at the very top you just got a love always then let me get a quick QuickTime Player and launch it a second time now it should be in Spanish although this thing is not behaving properly click templates in English for some bizarre reason but as you can see now my movie opens up in Spanish because I change my settings to Spanish so I've got that reference movie now going if I can go back to the slides please so I've got the Spanish the english movie and the QT source movie that I've made now what I need to do is I need to make a dummy movie that when the user clicks on that movie then it launches either the English or the Spanish movie which which by the fact on that movie is going to be the one embedded into the QuickTime rather into the HTML document so what I've done here before is I've made a thank you very much what I've done here before is I've made a big file of of the kitchen there I'm not going to open it in preview rather I'm going to drag and drop it onto the QuickTime Player to open up the pic file in the QuickTime Player now for the embedding what I want is the QuickTime plug-in to initialize therefore what I need to embed is going to be a QuickTime movie so right now it's a big file but if you go and save as it wraps it around it wraps the big file around the dot MOV extension so it actually turns it into a QuickTime movie that contains a pic file I should be putting it into my folder that contains all of the other files and I'm going to call this file my source this is the one I was going to be embedded in the source tag of my HTML there we go so this is going to be what it's called a poster movie this is the one that is actually going to be embedded into the HTML the user when they click that poster movie in effect is going to call the source movie and and that one is actually going to check if it's in English or in Spanish so we've got all the media from from my diagram ready to go the only thing that I need to finish up is the HTML and this is where page art comes to claims and what this application does it write the object and the embed tag for you and this guy said Qt bridge are always on top of QuickTime way faster and way better than than what you would find in [Music] applications like Dreamweaver that's supposed to have an embed and an object tag for a QuickTime which they take forever to update these guys on the other hand are are always on the ball so I'm gonna embed the source movie I'm just going to drag and drop it into my picture application as you can see gives me the name it figures out the height in the width and let's let's set all all the properties so what we want is when you click on this to actually have an H ref so when you click on the movie it should it should actually target the reference movie that it's going to figure out if it's in English and Spanish just going to paste the name over there and you could potentially Act you could potentially go to the QuickTime Player let's go to the QuickTime playing so it actually can go fullscreen or the user can take it fullscreen and let me get rid of the controller so you will show the code there's all the HTML for the object and the embed tag for that particular movie that we've made so I'm just going to copy that stuff copy I've already made a an index page that doesn't contain anything let me just open up text a bit and hopefully texture it here we go oh wow there's nothing there it has to do with the preferences I think clean text okay let me try that again okay that's what happens when you depend on text of it and not BBEdit for your the other preference which one is the other preference yeah you know everything thank you very much that's a good thing of having a really live audience there we go so we have all the HTML that I was expecting so I've got I just have the header there and now you should be able just to paste my whoa relatively large code that contains everything else in there and as you can see it already wrote the class ID for the ActiveX control II wrote the source the height the width and the embed tag for the whole thing all over again safe so when you launch that you click on it it fears out that I have my computer in Spanish and it gives me the Spanish version on the other hand if I change the settings of the computer to English which I should when I click on that I'm expecting to see the English version still the Spanish version let me quit the player let me quit this thing too and in keys with an English version of the VR and that pretty much concludes my presentation thanks Francesco so one can go to the slide speaks about quarter to five there are buses coming for the campus bash tonight which you'll meet downstairs I you don't have to rush to get down there so if you have questions for Francesco what we can do is we can take them off stage maybe out in the hallway take a few and then you guys can head down have fun tonight down in Cupertino thanks again francesco thank you very much [Applause]