I have noticed that Quicktime 10 is now able to open Transport Stream Video files and also search reliably within that video file(Which is something that VLC can not seem to handle). Quicktime 7, on the other hand, is not able to open the same Video File.
When I try to open that same Video File within my Cocoa Application, which is using the QTKit framework, I get the error that the selected file is not a movie file.
Are there anyways to work around this?
Also, does anyone know the difference between the Quicktime Player and the QTKit that is supplied to developers? I made the assumption that the QTKit framework would backing the player but this does not seem to be the case.
QuickTime Player should use an almost identical backing as any other app on the system: QTKit. What might be happening is that QuickTime Player in Snow Leopard is using the newly introduced QuickTime X system, rather than the more venerable QuickTime 7. Read up on QuickTime X and see if that helps. (It should boil down to specifying that you want playback only when opening the URL).
It seems that QTKit by default uses QuickTime 7 but can be made to use QuickTime X by setting the QTMovieOpenForPlaybackAttribute attribute. This will disable some quick time features like setting the selection and playing the selection but QTKit will now be able to play Transport Streams.
You can read more about it with in the following pdf.
http://macguild.org/wwdc/wwdc-2009.pdf
I understand this is quite irrelevant to the question asked. However, I hope it will help someone wandering around to know how to open a URL from a Cocoa app with the default QuickTime Player application and not the ugly QTMovieView etc. I'd to spend a good deal of time and labour googling about it but all in vain.. I hope it will save someone's day.
NSString *url = [NSString string];
url = #"http://someurl";
[[NSTask launchedTaskWithLaunchPath:#"/usr/bin/open" arguments:[NSArray arrayWithObjects:url , #"-a", #"QuickTime Player", nil]]
waitUntilExit];
Related
I am having a very frustrating issue with HTMl5 video and safari/mac.
I am using html5 video throughout the site where needed and it works/plays on every browsers bar safari on a mac (its fine on safari windows and chrome mac for example)
The videos dont stream and only play once the entire file is downloaded. At first I thought it may be to do with the index of the file being at the end and not the beginning (link html5 video = safari wants to download it all) so i tried qtindexswapper but when loading the MP4 into the program it said the MOOV/Index was in the correct position.
Anyone have any idea why safari mac has this issue?
A.
I've seen HTML5 be very picky with videos. They may play fine in a player, but not play or maybe play with no audio once embedded. This is usually due to a video not properly created/formatted. In most cases, re-creating the file in a professional level program alleviates the issue.
I am writing a Mac application that plays the streaming video.
I'll use Media player framework to play the video. Is there any way to record the video, save it and view it at a later time?
You're looking for the AVFoundation framework. Specifically, the AVCaptureSession class and related classes. Here's the manual.
for ppt presentation i want to create video for ipod touch app.
is their any possibility to create video
from Xcode using simulator
or directly from device
or any other possibility
thank you very much
Please see: Is there a way I can capture my iPhone screen as a video?
This post describes many ways to capture video. It looks like there isn't a completely intuitive way to record the video, but this post lists some of the options others have used for their applications.
I am trying to make a simple application which will store the sound said by user , say on click of record button and will play it back to him/her , say on click of play button.
Can anyone suggest me some appropriate way to do this ??
Thanks,
Miraaj
You can use QuickTime Kit's capture APIs to record a movie of the audio, and QTMovie (from the same framework) to convert it to a more conventional format for audio files and to play back both the intermediate file and the converted file.
There used to be a QuickTime Kit Programming Guide, but it didn't cover capturing and is now gone from developer.apple.com. You should file a bug against the docs.
This answer will work in a Cocoa (Mac) app. If you meant to ask about the iPhone, you should re-tag your question, as the solution will be completely different for a Cocoa app vs. a Cocoa Touch (iPhone) app.
I used direct sound to create an entire internet phone application a few years ago. Your question is far simpler, you won't have to deal with the circular buffer as critically. Direct sound is pretty main stream and you can find a lot of help with it in forums, and it's free!
So I'm porting an app from Windows to Mac, and part of the app deals with creating movie files. On Windows, there's a group of functions like ICOpen and ICConfigure, which signify to the video compression driver to open up a configuration box for the selected codec. Is there anything like that for QuickTime on Mac?
You will need to use straight Quicktime-C calls for this, but the function you want is called MovieExportDoUserDialog.
See the QTMovieExportSettings article on CocoaDev for the full details.