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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
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<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
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<title>Movie From DataRef - /Completed Lab/CreateMovie.c</title>
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/QuickTime/index.html">QuickTime</a> > <a href="../../samplecode/QuickTime/idxMovieBasics-date.html">Movie Basics</a> > <A HREF="javascript:location.replace('index.html');">Movie From DataRef</A> >
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<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">Movie From DataRef</div></h1></td>
</tr>
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<table width="680" border="0" cellpadding="0" cellspacing="0">
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<td id="scdetails">
<h2>/Completed Lab/CreateMovie.c</h2>
<form name="scpopupmenu" onSubmit="return false;" method=post>
<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/Application Files/ComApplication.c</option>
<option value="listing2.html">/Application Files/ComApplication.h</option>
<option value="listing3.html">/Application Files/ComResource.h</option>
<option value="listing4.html">/Application Files/MacApplication.r</option>
<option value="listing5.html">/Clippings/CreateMovie.c/AsyncMovieLoading.txt</option>
<option value="listing6.html">/Clippings/CreateMovie.c/CreateDataRef.txt</option>
<option value="listing7.html">/Clippings/CreateMovie.c/CreateDataRefVars.txt</option>
<option value="listing8.html">/Clippings/CreateMovie.c/CreateMovieFromDataRef.txt</option>
<option value="listing9.html">/Common Files/ComFramework.c</option>
<option value="listing10.html">/Common Files/ComFramework.h</option>
<option value="listing11.html">/Common Files/MacFramework.c</option>
<option value="listing12.html">/Common Files/MacFramework.h</option>
<option value="listing13.html">/Common Files/MacPrefix.h</option>
<option value="listing14.html">/Common Files/plist:carb.r</option>
<option value="listing15.html">/Common Files/QTUtilities.c</option>
<option value="listing16.html">/Common Files/QTUtilities.h</option>
<option value="listing17.html">/Common Files/WinFramework.c</option>
<option value="listing18.html">/Common Files/WinFramework.h</option>
<option value="listing19.html">/Common Files/WinPrefix.h</option>
<option value="listing20.html">/Completed Lab/CreateMovie.c</option>
<option value="listing21.html">/Completed Lab/CreateMovie.h</option>
<option value="listing22.html">/Start Code/CreateMovie.c</option>
<option value="listing23.html">/Start Code/CreateMovie.h</option></select>
</p>
</form>
<p><strong><a href="Movie_From_DataRef.zip">Download Sample</a></strong> (“Movie_From_DataRef.zip”, 593.0K)<BR>
<strong><a href="Movie_From_DataRef.dmg">Download Sample</a></strong> (“Movie_From_DataRef.dmg”, 964.3K)</p>
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<tr>
<td scope="row">
<!--googleon: index -->
<pre class="sourcecodebox">/*
File: CreateMovie.c
Contains: QuickTime CreateMovie sample code
Written by: Scott Kuechle
(based heavily on QuickTime sample code in Inside Macintosh: QuickTime)
Copyright: © 1998 by Apple Computer, Inc. All rights reserved
Change History (most recent first)
<3> 09/30/98 rtm tweaked calls to CreateMovieFIle and AddMovieResource to create single-fork movies
<2> 09/28/98 rtm changes for Metrowerks compiler
<1> 06/26/98 srk first file
*/
/************************************************************
* *
* INCLUDE FILES *
* *
*************************************************************/
#if !defined(_MSC_VER) && _WIN32
#include <Win32Headers.mch>
#define TARGET_OS_WIN32 1
#else
#include <ConditionalMacros.h>
#endif
#if TARGET_OS_WIN32
#include <QTML.h>
#define STRICT
#include <windows.h>
#endif
#include "MacTypes.h"
#include "MacMemory.h"
#include "Errors.h"
#include "Fonts.h"
#include "QuickDraw.h"
#include "Resources.h"
#include "Gestalt.h"
#include "FixMath.h"
#include "Sound.h"
#include "string.h"
#include "Movies.h"
#include "ImageCompression.h"
#include "Script.h"
#include "TextUtils.h"
#include "Processes.h"
#include "CreateMovie.h"
#include "QTUtilities.h"
#include "MacFramework.h"
/************************************************************
* *
* FUNCTION PROTOTYPES *
* *
*************************************************************/
#if TARGET_OS_MAC
static void Utils_Macintosh_DisplayMsg(char *msg);
static void InitMacToolbox (void);
#else if TARGET_OS_WIN32
static void Utils_Win32_DisplayMsg(char *msg);
#endif
/************************************************************
* *
* CONSTANTS *
* *
*************************************************************/
#define kMsgDialogRsrcID 129
#define kMsgItemID 3
#define kPrompt "Enter movie file name:"
#define kMovieFileName "MovieFile.mov"
#define kResName "Movie Resource"
/*
Sample Player's creator type since it is the movie player
of choice. You can use your own creator type, of course.
*/
#define kMyCreatorType FOUR_CHAR_CODE('TVOD')
/************************************************************
* *
* FUNCTIONS *
* *
*************************************************************/
/************************************************************
* *
* CheckError() *
* *
* Displays error message if an error occurred *
* *
*************************************************************/
void CheckError(OSErr error, char *msg)
{
if (error == noErr)
{
return;
}
if (strlen(msg) > 0)
{
#if TARGET_OS_MAC
Utils_Macintosh_DisplayMsg(msg);
#else if TARGET_OS_WIN32
Utils_Win32_DisplayMsg(msg);
#endif
ExitToShell();
}
}
/************************************************************
* *
* CreateAMovie() *
* *
* Creates a QuickTime movie with both a sound & video *
* track *
* *
*************************************************************/
Boolean CreateAMovie (void)
{
Point where = {100,100};
Movie theMovie = nil;
short resRefNum = 0;
short resId = movieInDataForkResID;
FSSpec fsspec;
StringPtr fileName = QTUtils_ConvertCToPascalString ("MovieFile.mov");
Boolean isSelected = false;
Boolean isReplaceing = false;
OSErr err = noErr;
const unsigned char url[] =
"rtsp://a1884.q.kamai.net/7/1884/52/37e1726c/stream.qtv.apple.com/channels/disney/akamai/091499/toystory_180.mov";
Handle dataRef = nil;
long loadState;
ComponentResult result;
Track firstProblemTrack;
// Create a data reference which we will use to create our movie. In this case,
// we'll construct a URL data reference. The URL data reference
// is simply a handle whose data is a URL describing a movie.
dataRef = NewHandleClear(StrLength(url) + 1);
CheckError(MemError(), "NewHandleClear error");
BlockMoveData(url, *dataRef, StrLength(url) + 1);
// Create the movie file using a URL data reference. This
// URL is added to the movie as a streaming movie track.
// We make sure and pass the newMovieAsyncOK flag to enable
// us to query the state of the movie as it loads via the
// GetMovieLoadState function.
err = NewMovieFromDataRef(&theMovie,
newMovieActive | newMovieAsyncOK,
nil,
dataRef,
URLDataHandlerSubType);
// Handle asynchronous movie loading here. We use the new
// GetMovieLoadState function to determine the load state
// of the movie.
do
{
long newLoadState;
// Get new load state to see if there was a change in
// state.
newLoadState = GetMovieLoadState(theMovie);
if (newLoadState != loadState)
{
loadState = newLoadState;
if (loadState < 0)
{
// failed to load the movie - this will cause
// us to drop out of this loop and report an
// error
}
if (loadState < kMovieLoadStatePlayable)
{
// we need to keep tasking the movie so it gets
// time to load
MoviesTask(theMovie, 0);
}
if (loadState < kMovieLoadStateComplete)
{
// we just became playable
}
if (loadState >= kMovieLoadStateComplete)
{
// now we know all media data is available
// this will drop us out of this loop so we
// can display the movie
}
}
}
while ((loadState > kMovieLoadStateError) && (loadState < kMovieLoadStateComplete));
CheckError(err, "NewMovieFromDataRef error");
// dispose of our data reference handle since it is no longer needed
DisposeHandle(dataRef);
result = GetMovieStatus (theMovie, &firstProblemTrack);
// if GetMovieLoadState from above returned kMovieLoadStateError, and
// GetMovieStatus returns nil for the firstProblemTrack parameter we
// know an error occurred
if ((loadState == kMovieLoadStateError) && (firstProblemTrack == nil))
{
CheckError(-1, "NewMovieFromDataRef error");
}
// create a default FSSpec
FSMakeFSSpec(0, 0L, fileName, &fsspec);
bail:
free(fileName);
return(QTFrame_OpenMovieInWindow(theMovie, &fsspec));
}
/************************************************************
* *
* FUNCTION: Utils_Macintosh_DisplayMsg *
* *
* PURPOSE: Displays Macintosh error messages *
* *
*************************************************************/
#if TARGET_OS_MAC
static void Utils_Macintosh_DisplayMsg(char *msg)
{
DialogPtr theDlog;
Handle item = NULL;
Rect box;
Str255 theString;
theDlog = GetNewDialog(kMsgDialogRsrcID, NULL, (WindowPtr)-1);
if (theDlog != NULL)
{
short itemType;
GetDialogItem(theDlog, kMsgItemID, &itemType, &item, &box);
if (item != NULL)
{
short itemHit;
c2pstrcpy(theString, msg);
SetDialogItemText(item, theString);
ModalDialog(NULL, &itemHit);
DisposeDialog(theDlog);
}
}
}
#endif
/************************************************************
* *
* FUNCTION: Utils_Win32_DisplayMsg *
* *
* PURPOSE: Displays error messages for Win95/NT sample *
* code *
* *
*************************************************************/
#if TARGET_OS_WIN32
static void Utils_Win32_DisplayMsg(char *msg)
{
MessageBox(NULL, msg, "", MB_OK);
}
#endif
</pre>
<!--googleoff: index -->
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<td><div style="width: 100%; height: 1px; background-color: #919699; margin-top: 5px; margin-bottom: 15px"></div></td>
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<th>Did this document help you?</th>
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<td>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/Movie_From_DataRef/listing20.html%3Fid%3DDTS10001039-1.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/Movie_From_DataRef/listing20.html%3Fid%3DDTS10001039-1.0&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/Movie_From_DataRef/listing20.html%3Fid%3DDTS10001039-1.0&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
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