// MyController.m

// Part of QTCompressionOptionsWindowTest

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#import "MyController.h"

@implementation MyController

#pragma mark ---- property accessors ----

@synthesize displayName = mDisplayName;

@synthesize isRecording = mIsRecording;

#pragma mark ---- initialization ----

- (void)awakeFromNib

{

    BOOL success = NO;

    NSError *error;

    // create the capture session

    mCaptureSession = [[QTCaptureSession alloc] init];

    // *** connect inputs and outputs to the session

    // find a video device

    QTCaptureDevice *device = [QTCaptureDevice defaultInputDeviceWithMediaType:QTMediaTypeVideo];

    if (device) {

        success = [device open:&error];

        if (!success) {

            NSLog(@"%@\n", error);

            return;

        }

        // add the video device to the session as device input

        mCaptureDeviceInput = [[QTCaptureDeviceInput alloc] initWithDevice:device];

        success = [mCaptureSession addInput:mCaptureDeviceInput error:&error];

        if (!success) {

            NSLog(@"%@\n", error);

            return;

        }

    }

    // create the movie file output and add it to the session

    mCaptureMovieFileOutput = [[QTCaptureMovieFileOutput alloc] init];

    success = [mCaptureSession addOutput:mCaptureMovieFileOutput error:&error];

    if (!success) {

        NSLog(@"%@\n", error);

        return;

    }

    // set the controller be the movie file output delegate

    [mCaptureMovieFileOutput setDelegate:self];

    // associate the capture view in the UI with the session

    [mCaptureView setCaptureSession:mCaptureSession];

    // start the capture session running

    [mCaptureSession startRunning];

    // ******** Compression Options Window *****

    // create our window with the media type and set ourselves as the delegate

    // you could also instantiate the window directly in the nib and hook up the delegate

    // simply call showWindow or setMediaType if you want to change the list of compression options shown

    mCompressionOptionsWindow = [[QTCompressionOptionsWindow alloc] initWithMediaType:[[[mCaptureMovieFileOutput connections] lastObject] mediaType]];

    if (nil == mCompressionOptionsWindow) {

        NSLog(@"Compression Options Window did not load!\n");

        return;

    }

    [mCompressionOptionsWindow setDelegate:self];

    // set initial UI text

    self.displayName = @"Device Native";

    // we want the options window to be centered on the screen

    [[mCompressionOptionsWindow window] center];

}

#pragma mark ---- actions ----

// called when the "Record" button is pressed to initiate recording

- (IBAction)startRecording:(id)sender

{

    self.isRecording = YES; // started recording so update UI

    // set up a 5 second timer

    [NSTimer scheduledTimerWithTimeInterval:5.0 target:self selector:@selector(stopRecording:) userInfo:nil repeats:NO];

    // tell the file output object to record to specfied location

    [mCaptureMovieFileOutput recordToOutputFileURL:[NSURL fileURLWithPath:@"/Users/Shared/QTCompressionOptionsWindowTestMovie.mov"]];

}

// display the options window

- (IBAction)showCompressionOptionsWindow:(id)sender 

{

    [mCompressionOptionsWindow showWindow:sender];

}

// tell the file output object to stop recording

- (void)stopRecording:(NSTimer *)inTimer

{

    [mCaptureMovieFileOutput recordToOutputFileURL:nil];

}

#pragma mark ---- delegates ----

#pragma mark QTCompressionOptionsWindow

// when the options window is closed this delegate method gets called

// ask for the chosen QTCompressionOptions object and configure the

// file output object accordingly

- (void)compressionOptionsWindowDidClose:(id)sender

{

    QTCompressionOptions *myCompressionOptions = [sender compressionOptions];

    if (nil != myCompressionOptions) {

        [mCaptureSession stopRunning];

        [mCaptureMovieFileOutput setCompressionOptions:myCompressionOptions forConnection:[[mCaptureMovieFileOutput connections] lastObject]];

        [mCaptureSession startRunning];

        // update the main window UI so it displays the chosen compression type

        self.displayName = [myCompressionOptions localizedDisplayName];

        NSLog(@"%@\n", [myCompressionOptions localizedDisplayName]);

    } else {

        NSLog(@"Bad Compression Options Object Returned!\n");

    }

}

#pragma mark QTCaptureFileOutput

// called whenever a file is finished successfully

// if the file was finished due to an error, the error is described in the error parameter

// otherwise, the error parameter equals nil

- (void)captureOutput:(QTCaptureFileOutput *)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL forConnections:(NSArray *)connections dueToError:(NSError *)error

{

    // this results in QTPlayer displaying the newly recorded file

    [[NSWorkspace sharedWorkspace] openURL:outputFileURL];

    self.isRecording = NO;  // stopped recording so update UI

}

#pragma mark NSApplication

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender

{

    return YES;

}

#pragma mark ---- notifications ----

#pragma mark NSWindow

// main window about to close so shut down capture

- (void)windowWillClose:(NSNotification *)notification

{

    [mCaptureSession stopRunning];

    [[mCaptureDeviceInput device] close];

    // not really required since we just quit

    // the app, but good for completeness

    [mCompressionOptionsWindow setDelegate:nil];

    [mCompressionOptionsWindow release];

}

@end