/*

 File: main.c

 Abstract: Contains code showing how to create a QuickTime movie from a

           data file containing just the video frames.

 Version: 1.0

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 */ 

#include <TargetConditionals.h>

#if TARGET_OS_WIN32

    #include <stdlib.h>

    #include <stdio.h>

    #include <QuickTimeComponents.h>

    #include <QTML.h>

    #define STRICT

    #include <windows.h>

#else

    #import <QuickTime/QuickTime.h>

#endif

static const int            kFrameWidth         = 200; // your frameWidth

static const int            kFrameHeight        = 240; // your frameHeight

static const TimeScale      kMediaTimeScale     = 600; // your media time scale

static const TimeValue      kDurationPerSample  = 60;  // your duration per sample

static const long           kNumberOfSamples    = 60;  // your number of samples

static const OSType         kCodecType          = 'raw ';   // your codec type 

OSErr makeMovieFromVideoFramesFile(char *inDestMovieFile);

void makeDataRefFromFullPath(char *inFilePath, Handle *outDataRef, OSType *outDataRefType);

/*

Main

Parses command line input parameters looking for a specified

path to a video frames file. Then it calls QuickTime routines

to create a QuickTime movie from this video frames file.

*/

int main (int argc, char * const argv[]) 

{

    OSErr err;

    char *inFile = nil;

    int i;

    // look for the "-input" parameter which designates the video frames file

    for (i = 1; i < argc; i++)

    {

        if ( (0 == strncmp("-input", argv[i], 2)) && i + 1 < argc )

            inFile = (char*)argv[++i];

    }

    if (NULL == inFile)

    {

        fprintf(stderr, "CreateMovieFromReferences -input /path/to/inputVideoFramesfile\n");

        err = paramErr;

        goto bail;

    }

    // create a QuickTime movie from the video frames file

    err = makeMovieFromVideoFramesFile(inFile);

bail:

    return err;

}

/*

makeMovieFromVideoFramesFile

Creates a movie from a file of contiguous video frames

inDestMovieFile - Your raw video frames file. Once the program has finished, this file

will be converted "in place" to a QuickTime movie.

Note: your video frames file must have the first 16 bytes of your your video frames should

be overwritten with the bit pattern that QuickTime will later recognize as the start of the

'mdat' atom, which it will patch when the movie resource is appended to the file (see the 

"Read Me" file associated with this sample code for more details). Then the first compressed 

video sample can be written at byte offset 16.

*/

OSErr makeMovieFromVideoFramesFile(char *inDestMovieFile)

{

    Handle                  dataRef = NULL;

    OSType                  dataRefType;

    ImageDescriptionHandle  videoDescH = NULL;

    OSErr                   err;

#if TARGET_OS_WIN32

    err = InitializeQTML(0);

    if ((err = GetMoviesError()) != noErr) goto bail;

#endif

    err = EnterMovies();

    if ((err = GetMoviesError()) != noErr) goto bail;

    // create a data reference from the full path to the video frames file

    makeDataRefFromFullPath(inDestMovieFile, &dataRef, &dataRefType);

    if (dataRef == NULL) goto bail;

    Movie m = NewMovie(0);

    if ((err = GetMoviesError()) != noErr) goto bail;

    // create the video track for the movie

    Track videoT = NewMovieTrack( m, Long2Fix(kFrameWidth), Long2Fix(kFrameHeight), kNoVolume);

    if ((err = GetMoviesError()) != noErr) goto bail;

    // create the video track media

    Media videoM = NewTrackMedia( videoT, VideoMediaType, kMediaTimeScale, dataRef, dataRefType);

    if ((err = GetMoviesError()) != noErr) goto bail;

    videoDescH = (ImageDescriptionHandle)NewHandleClear(sizeof(ImageDescription));

    if (videoDescH == NULL) goto bail;

    // create the ImageDescription that will describe our video track media samples

    videoDescH[0]->idSize = sizeof(ImageDescription);

    videoDescH[0]->cType = kCodecType; // the codec type for your data 

    videoDescH[0]->temporalQuality = codecNormalQuality;

    videoDescH[0]->spatialQuality = codecNormalQuality;

    videoDescH[0]->width = kFrameWidth;

    videoDescH[0]->height = kFrameHeight;

    videoDescH[0]->hRes = 72L << 16;

    videoDescH[0]->vRes = 72L << 16;

    videoDescH[0]->depth = 32;

    videoDescH[0]->clutID = -1;

    SampleReference64Record videoRef;

    videoRef.dataOffset.hi = 0; videoRef.dataOffset.lo = 0;

    videoRef.dataSize = (kFrameWidth*kFrameHeight*4) * kNumberOfSamples; 

    videoRef.durationPerSample = kDurationPerSample;

    videoRef.numberOfSamples = kNumberOfSamples;

    videoRef.sampleFlags = 0;

    // now add all of our media samples to the movie data file.

    err = AddMediaSampleReferences64(videoM, (SampleDescriptionHandle)videoDescH,

                            1, &videoRef, 0);

    if (err != noErr) goto bail;

    TimeValue mediaDuration = kNumberOfSamples * kDurationPerSample;

    // inserts a reference to our media samples into the track.

    err = InsertMediaIntoTrack(videoT, 0, 0, mediaDuration, 

                fixed1);    // media's rate (1.0 = media's natural playback rate).

    if (err != noErr) goto bail;

    DataHandler outDataHandler;

    // opens a data handler for our movie storage (the video frames file)

    err = OpenMovieStorage (dataRef, dataRefType, kDataHCanWrite, &outDataHandler );

    if (err != noErr) goto bail;

    // add a movie to our movie storage container

    err = AddMovieToStorage (m, outDataHandler );

    if (err != noErr) goto bail;

    err = CloseMovieStorage (outDataHandler);

    outDataHandler = NULL;

bail:

    if (videoDescH)

    {

        DisposeHandle((Handle)videoDescH);

    }

    return err;

}

/*

makeDataRefFromFullPath

Creates a data reference from a full path string.

inFilePath - pointer to the full path C-string

outDataRef - on return this contains the data reference handle

outDataRefType - on return this contains the data reference type

*/

void makeDataRefFromFullPath(char *inFilePath, Handle *outDataRef, OSType *outDataRefType)

{

    *outDataRef = NULL;

    /* The default encoding for the system; 

        untagged 8-bit characters are usually in this encoding */

    CFStringEncoding sysEncoding = CFStringGetSystemEncoding();

    CFStringRef destFileRef = CFStringCreateWithCString (

                                   kCFAllocatorDefault,

                                   inFilePath,

                                   sysEncoding

                                );

    if (NULL == destFileRef)

    {

        return;

    }

    // Create data reference for our raw frames file

    QTNewDataReferenceFromFullPathCFString(destFileRef, kQTNativeDefaultPathStyle, 0, outDataRef, outDataRefType);

    CFRelease(destFileRef);

}