/*

     File: QTMediaSampleExporter.m

 Abstract: 

 Utility toolkit for exporting a smaple to a QT movie.

  Version: 1.2

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 Neither the name, trademarks, service marks or logos of Apple Inc. may

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 without specific prior written permission from Apple.  Except as

 expressly stated in this notice, no other rights or licenses, express or

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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE

 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION

 THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS

 FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND

 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL

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 Copyright (C) 2013 Apple Inc. All Rights Reserved.

 */

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#import "QTMediaSampleNotifications.h"

#import "QTMediaSampleExporter.h"

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

//---------------------------------------------------------------------------

@interface QTMediaSampleExporter( PrivateMethods )

- (void) progressSync;

- (void) closeSync;

@end

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

//---------------------------------------------------------------------------

@implementation  QTMediaSampleExporter( PrivateMethods )

//---------------------------------------------------------------------------

- (void) progressSync

{

    NSAutoreleasePool *pool = [NSAutoreleasePool new];

    [NSThread setThreadPriority:0.5];

    NSInteger maxItems = [mpAuthor count];

    if( maxItems > 5 )

    {

        NSRect      contentRect = NSMakeRect(0.0f, 0.0f, 400.0f, 50.0f);

        NSUInteger  styleMask   = NSTitledWindowMask | NSTexturedBackgroundWindowMask;

        NSProgressIndicator *progressIndicator = nil;

        NSPanel *progressIndicatorPanel = [[NSPanel alloc] initWithContentRect:contentRect

                                                                     styleMask:styleMask

                                                                       backing:NSBackingStoreBuffered

                                                                         defer:NO];

        if( progressIndicatorPanel )

        {

            [progressIndicatorPanel setFloatingPanel:YES];

            [progressIndicatorPanel setHidesOnDeactivate:YES];

            [progressIndicatorPanel setExcludedFromWindowsMenu:YES];

            [progressIndicatorPanel setMenu:nil];

            [progressIndicatorPanel center];

            [progressIndicatorPanel setTitle:@"Authoring a Movie..."];

            [progressIndicatorPanel setReleasedWhenClosed:YES];

            NSView *contentView = [progressIndicatorPanel contentView];

            if( contentView )

            {

                NSRect contentFrame = [contentView frame];

                contentFrame.origin.x = 10.0;

                contentFrame.origin.y = 15.0;

                contentFrame.size.width  -= 20.0;

                contentFrame.size.height -= 30.0;

                progressIndicator = [[NSProgressIndicator alloc] initWithFrame:contentFrame];

                if( progressIndicator )

                {

                    [progressIndicator setHidden:NO];

                    [progressIndicator setMaxValue:(double)(maxItems-1)];

                    [progressIndicator setMinValue:0.0];

                    [progressIndicator setIndeterminate:NO];

                    [progressIndicator setStyle:NSProgressIndicatorBarStyle];

                    [progressIndicator sizeToFit];

                    [contentView addSubview:progressIndicator];

                    [progressIndicatorPanel makeKeyAndOrderFront:nil];

                    double    currentValue  = 0.0;

                    double    previousValue = currentValue;

                    NSInteger currentItem   = maxItems;

                    while( currentItem )

                    {

                        currentValue = (double)(maxItems - currentItem);

                        if( currentValue != previousValue )

                        {

                            [progressIndicator setDoubleValue:currentValue];

                            previousValue = currentValue;

                        } // if

                        currentItem = [mpAuthor count];

                    } // while

                    [progressIndicator setHidden:YES];

                } // if

            } // if

            CGFloat alpha      = [progressIndicatorPanel alphaValue];

            CGFloat alphaDelta = 0.0000175f;

            while( alpha > 0.0f )

            {

                [progressIndicatorPanel setAlphaValue:alpha];

                alpha -= alphaDelta;

            } // while

            [progressIndicator release];

            [progressIndicatorPanel close];

        } // if

    } // if

    [pool drain];

} // progressSync

//---------------------------------------------------------------------------

- (void) closeSync

{

    NSAutoreleasePool *pool = [NSAutoreleasePool new];

    [NSThread setThreadPriority:1.0];

    [[NSNotificationCenter defaultCenter] postNotificationName:QTMediaSampleAuthorIsFinalized

                                                        object:self];

    if( [mpAuthor close] )

    {

        if( [self addReferences:[mpAuthor samples]] )

        {

            mbIsEnded = [self editsFinalize];

        } // if

    } // if

    [pool drain];

} // closeSync

//---------------------------------------------------------------------------

@end

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

//---------------------------------------------------------------------------

@implementation QTMediaSampleExporter

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Utilities

//---------------------------------------------------------------------------

//

// Make sure client goes through designated initializer

//

//---------------------------------------------------------------------------

- (id) initMediaSampleEditorWithMoviePath:(NSString *)theMoviePath

                                frameSize:(const NSSize *)theSize

                             framesPerSec:(const TimeValue)theFPS

{

    [self doesNotRecognizeSelector:_cmd];

    return( nil );

} // initMediaSampleEditorWithMoviePath

//---------------------------------------------------------------------------

//

// Initialize a frame compressor object with the specified codec,

// bounds, compressor options and timescale

//

//---------------------------------------------------------------------------

- (id) initMediaSampleExporterWithMoviePath:(NSString *)theMoviePath

                                  frameSize:(const NSSize *)theSize

                               framesPerSec:(const TimeValue)theFPS

{

    self = [super initMediaSampleEditorWithMoviePath:theMoviePath

                                           frameSize:theSize

                                        framesPerSec:theFPS];

    if( self )

    {

        mpSample = [[QTMediaSample alloc] initWithSize:theSize];

        mpAuthor = [[QTMediaSampleAuthor alloc] initMediaSampleAuthorWithPathName:theMoviePath

                                                                  mediaSampleSize:theSize];

        mpFinalizeThread = [[NSThread alloc] initWithTarget:self

                                                   selector:@selector(closeSync)

                                                     object:nil];

        mpUIThread = [[NSThread alloc] initWithTarget:self

                                             selector:@selector(progressSync)

                                               object:nil];

        m_Size          = *theSize;

        mbIsEnded       = NO;

        mbShowIndicator = NO;

    } // if

    return( self );

} // initMediaSampleExporterWithMoviePath

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Dealloc

//---------------------------------------------------------------------------

- (void) releaseMediaSampleUIThread

{

    while( [mpUIThread isExecuting] )

    {

        ;

    } // while

    if( mpUIThread )

    {

        [mpUIThread release];

        mpUIThread = nil;

    } // if

} // releaseMediaSampleUIThread

//---------------------------------------------------------------------------

- (void) releaseMediaSampleFinalizeThread

{

    while( [mpFinalizeThread isExecuting] )

    {

        ;

    } // while

    if( mpFinalizeThread )

    {

        [mpFinalizeThread release];

        mpFinalizeThread = nil;

    } // if

} // releaseMediaSampleFinalizeThread

//---------------------------------------------------------------------------

- (void) releaseMediaSample

{

    if( mpSample )

    {

        [mpSample release];

        mpSample = nil;

    } // if

} // releaseMediaSample

//---------------------------------------------------------------------------

- (void) releaseMediaSampleAuthor

{

    if( mpAuthor )

    {

        [mpAuthor release];

        mpAuthor = nil;

    } // if

} // releaseMediaSampleAuthor

//---------------------------------------------------------------------------

- (void) cleanUpExporter

{

    [self releaseMediaSampleUIThread];

    [self releaseMediaSampleFinalizeThread];

    [self releaseMediaSampleAuthor];

    [self releaseMediaSample];

} // cleanUpExporter

//---------------------------------------------------------------------------

- (void) dealloc

{

    [self cleanUpExporter];

    [super dealloc];

} // dealloc

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Accessors

//---------------------------------------------------------------------------

- (void) enableIndicator

{

    mbShowIndicator = YES;

} // enableIndicator

//---------------------------------------------------------------------------

- (void) disableIndicator

{

    mbShowIndicator = NO;

} // disableIndicator

//---------------------------------------------------------------------------

- (BOOL) isSuspended

{

    return( [mpAuthor isSuspended]  );

} // isSuspended

//---------------------------------------------------------------------------

- (NSUInteger) count

{

    return( [mpAuthor count] );

} // count

//---------------------------------------------------------------------------

- (GLvoid *) pixelBuffer

{

    return( [mpSample buffer] );

} // pixelBuffer

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Utilities

//---------------------------------------------------------------------------

- (BOOL) exportAsync

{

    BOOL isWriting = [mpAuthor writeAsync:mpSample];

    [mpSample updateTimeStamp];

    [mpSample updateIndex];

    return isWriting;

} // exportAsync

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

- (void) exportFinalize

{

    [mpFinalizeThread start];

    if( mbShowIndicator )

    {

        [mpUIThread start];

    } // if

} // exportFinalize

//---------------------------------------------------------------------------

- (BOOL) exportEnded

{

    return( mbIsEnded );

} // exportEnded

//---------------------------------------------------------------------------

@end

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------