PicHandle QTEffects_GetPosterPictFromFirstVideoTrackInMovieFile (FSSpec *theSpec)
{
PicHandle myPict = NULL;
Movie myMovie = NULL;
Track myTrack = NULL;
short myRefNum = 0;
OSErr myErr = noErr;
myErr = OpenMovieFile(theSpec, &myRefNum, fsRdPerm);
BailError(myErr);
myErr = NewMovieFromFile(&myMovie, myRefNum, NULL, NULL, 0, NULL);
BailError(myErr);
SetMoviePlayHints(myMovie, hintsHighQuality, hintsHighQuality);
myErr = CloseMovieFile(myRefNum);
BailError(myErr);
myErr = QTEffects_GetFirstVideoTrackInMovie(myMovie, &myTrack);
BailNil(myTrack);
myPict = GetTrackPict(myTrack, GetMoviePosterTime(myMovie));
bail:
if (myMovie != NULL)
DisposeMovie(myMovie);
return(myPict);
}
//--------------------------------------------------------
void ofQuickTimePlayer::setLoopState(ofLoopType state){
//--------------------------------------
#ifdef OF_VIDEO_PLAYER_QUICKTIME
//--------------------------------------
if( isLoaded() ){
TimeBase myTimeBase;
long myFlags = 0L;
myTimeBase = GetMovieTimeBase(moviePtr);
myFlags = GetTimeBaseFlags(myTimeBase);
switch (state) {
case OF_LOOP_NORMAL:
myFlags |= loopTimeBase;
myFlags &= ~palindromeLoopTimeBase;
SetMoviePlayHints(moviePtr, hintsLoop, hintsLoop);
SetMoviePlayHints(moviePtr, 0L, hintsPalindrome);
break;
case OF_LOOP_PALINDROME:
myFlags |= loopTimeBase;
myFlags |= palindromeLoopTimeBase;
SetMoviePlayHints(moviePtr, hintsLoop, hintsLoop);
SetMoviePlayHints(moviePtr, hintsPalindrome, hintsPalindrome);
break;
case OF_LOOP_NONE:
default:
myFlags &= ~loopTimeBase;
myFlags &= ~palindromeLoopTimeBase;
SetMoviePlayHints(moviePtr, 0L, hintsLoop |
hintsPalindrome);
break;
}
SetTimeBaseFlags(myTimeBase, myFlags);
}
//--------------------------------------
#endif
//--------------------------------------
//store the current loop state;
currentLoopState = state;
}
//--------------------------------------------------------
void ofVideoPlayer::setLoopState(int state){
//--------------------------------------
#ifdef OF_VIDEO_PLAYER_QUICKTIME
//--------------------------------------
TimeBase myTimeBase;
long myFlags = 0L;
myTimeBase = GetMovieTimeBase(moviePtr);
myFlags = GetTimeBaseFlags(myTimeBase);
switch (state) {
case OF_LOOP_NORMAL:
myFlags |= loopTimeBase;
myFlags &= ~palindromeLoopTimeBase;
SetMoviePlayHints(moviePtr, hintsLoop, hintsLoop);
SetMoviePlayHints(moviePtr, 0L, hintsPalindrome);
break;
case OF_LOOP_PALINDROME:
myFlags |= loopTimeBase;
myFlags |= palindromeLoopTimeBase;
SetMoviePlayHints(moviePtr, hintsLoop, hintsLoop);
SetMoviePlayHints(moviePtr, hintsPalindrome, hintsPalindrome);
break;
case OF_LOOP_NONE:
default:
myFlags &= ~loopTimeBase;
myFlags &= ~palindromeLoopTimeBase;
SetMoviePlayHints(moviePtr, 0L, hintsLoop |
hintsPalindrome);
break;
}
SetTimeBaseFlags(myTimeBase, myFlags);
//--------------------------------------
#else
//--------------------------------------
loopMode = state;
//--------------------------------------
#endif
//--------------------------------------
}
////////////////////////////////////////////////////////////////////////////////
// private
bool LLMediaImplQuickTime::load( const std::string url )
{
if ( url.empty() )
return false;
//In case std::string::c_str() makes a copy of the url data,
//make sure there is memory to hold it before allocating memory for handle.
//if fails, NewHandleClear(...) should return NULL.
const char* url_string = url.c_str() ;
Handle handle = NewHandleClear( ( Size )( url.length() + 1 ) );
if ( NULL == handle )
return false;
if(noErr != MemError() || NULL == *handle)
{
return false ;
}
BlockMove( url_string, *handle, ( Size )( url.length() + 1 ) );
//std::cout << "LLMediaImplQuickTime::load( " << url << " )" << std::endl;
// TODO: supposed to use NewMovieFromDataParams now
OSErr err = NewMovieFromDataRef( &mMovieHandle, newMovieActive | newMovieDontInteractWithUser | newMovieAsyncOK | newMovieIdleImportOK, nil, handle, URLDataHandlerSubType );
DisposeHandle( handle );
if ( noErr != err )
return false;
// do pre-roll actions (typically fired for streaming movies but not always)
PrePrerollMovie( mMovieHandle, 0, GetMoviePreferredRate( mMovieHandle ), moviePrePrerollCompleteCallback, ( void * )this );
// get movie rect (and check for min/max)
Rect movie_rect;
setMovieBoxEnhanced( &movie_rect );
// make a new movie controller
mMovieController = NewMovieController( mMovieHandle, &movie_rect, mcNotVisible | mcTopLeftMovie );
#if defined(__APPLE__) || defined(MACOSX)
setMediaDepth( 4 );
#else
setMediaDepth( 3 );
#endif
// tell manager about the media size
setMediaSize( movie_rect.right - movie_rect.left, movie_rect.bottom - movie_rect.top);
// movie controller
MCSetActionFilterWithRefCon( mMovieController, mcActionFilterCallBack, ( long )this );
SetMoviePlayHints( mMovieHandle, hintsAllowDynamicResize, hintsAllowDynamicResize );
// function that gets called when a frame is drawn
SetMovieDrawingCompleteProc( mMovieHandle, movieDrawingCallWhenChanged, movieDrawingCompleteCallback, ( long )this );
// emit an event to say that a media source was loaded
LLMediaEvent event( this );
mEventEmitter.update( &LLMediaObserver::onMediaLoaded, event );
// set up inital state
sizeChanged();
return true;
}
void QTCmpr_CompressSequence (WindowObject theWindowObject)
{
ComponentInstance myComponent = NULL;
GWorldPtr myImageWorld = NULL; // the graphics world we draw the images in
PixMapHandle myPixMap = NULL;
Movie mySrcMovie = NULL;
Track mySrcTrack = NULL;
Movie myDstMovie = NULL;
Track myDstTrack = NULL;
Media myDstMedia = NULL;
Rect myRect;
PicHandle myPicture = NULL;
CGrafPtr mySavedPort = NULL;
GDHandle mySavedDevice = NULL;
SCTemporalSettings myTimeSettings;
SCDataRateSettings myRateSettings;
FSSpec myFile;
Boolean myIsSelected = false;
Boolean myIsReplacing = false;
short myRefNum = -1;
StringPtr myMoviePrompt = QTUtils_ConvertCToPascalString(kQTCSaveMoviePrompt);
StringPtr myMovieFileName = QTUtils_ConvertCToPascalString(kQTCSaveMovieFileName);
MatrixRecord myMatrix;
ImageDescriptionHandle myImageDesc = NULL;
TimeValue myCurMovieTime = 0L;
TimeValue myOrigMovieTime = 0L; // current movie time, when compression is begun
short myFrameNum;
long myFlags = 0L;
long myNumFrames = 0L;
long mySrcMovieDuration = 0L; // duration of source movie
OSErr myErr = noErr;
#if USE_ASYNC_COMPRESSION
ICMCompletionProcRecord myICMComplProcRec;
ICMCompletionProcRecordPtr myICMComplProcPtr = NULL;
OSErr myICMComplProcErr = noErr;
myICMComplProcRec.completionProc = NULL;
myICMComplProcRec.completionRefCon = 0L;
#endif
if (theWindowObject == NULL)
goto bail;
//////////
//
// get the movie and the first video track in the movie
//
//////////
mySrcMovie = (**theWindowObject).fMovie;
if (mySrcMovie == NULL)
goto bail;
mySrcTrack = GetMovieIndTrackType(mySrcMovie, 1, VideoMediaType, movieTrackMediaType);
if (mySrcTrack == NULL)
goto bail;
// stop the movie; we don't want it to be playing while we're (re)compressing it
SetMovieRate(mySrcMovie, (Fixed)0L);
// get the current movie time, when compression is begun; we'll restore this later
myOrigMovieTime = GetMovieTime(mySrcMovie, NULL);
//////////
//
// configure and display the Standard Image Compression dialog box
//
//////////
// open an instance of the Standard Image Compression dialog component
myComponent = OpenDefaultComponent(StandardCompressionType, StandardCompressionSubType);
if (myComponent == NULL)
goto bail;
// turn off "best depth" option in the compression dialog, because all of our
// buffering is done at 32-bits (regardless of the depth of the source data)
//
// a more ambitious approach would be to loop through each of the video sample
// descriptions in each of the video tracks looking for the deepest depth, and
// using that for the best depth; better yet, we could find out which compressors
// were used and set one of those as the default in the compression dialog
SCGetInfo(myComponent, scPreferenceFlagsType, &myFlags);
myFlags &= ~scShowBestDepth;
SCSetInfo(myComponent, scPreferenceFlagsType, &myFlags);
// because we are recompressing a movie that may have a variable frame rate,
// we want to allow the user to leave the frame rate text field blank (in which
// case we can preserve the frame durations of the source movie); if the user
// enters a number, we will resample the movie at a new frame rate; if we don't
// clear this flag, the compression dialog will not allow zero in the frame rate field
//
// NOTE: we could have set this flag above when we cleared the scShowBestDepth flag;
// it is done here for clarity.
SCGetInfo(myComponent, scPreferenceFlagsType, &myFlags);
myFlags |= scAllowZeroFrameRate;
SCSetInfo(myComponent, scPreferenceFlagsType, &myFlags);
// get the number of video frames in the movie
myNumFrames = QTUtils_GetFrameCount(mySrcTrack);
// get the bounding rectangle of the movie, create a 32-bit GWorld with those
// dimensions, and draw the movie poster picture into it; this GWorld will be
// used for the test image in the compression dialog box and for rendering movie
// frames
myPicture = GetMoviePosterPict(mySrcMovie);
if (myPicture == NULL)
goto bail;
GetMovieBox(mySrcMovie, &myRect);
myErr = NewGWorld(&myImageWorld, 32, &myRect, NULL, NULL, 0L);
if (myErr != noErr)
goto bail;
// get the pixmap of the GWorld; we'll lock the pixmap, just to be safe
myPixMap = GetGWorldPixMap(myImageWorld);
if (!LockPixels(myPixMap))
goto bail;
// draw the movie poster image into the GWorld
GetGWorld(&mySavedPort, &mySavedDevice);
SetGWorld(myImageWorld, NULL);
EraseRect(&myRect);
DrawPicture(myPicture, &myRect);
KillPicture(myPicture);
SetGWorld(mySavedPort, mySavedDevice);
// set the picture to be displayed in the dialog box; passing NULL for the rect
// means use the entire image; passing 0 for the flags means to use the default
// system method of displaying the test image, which is currently a combination
// of cropping and scaling; personally, I prefer scaling (your mileage may vary)
SCSetTestImagePixMap(myComponent, myPixMap, NULL, scPreferScaling);
// install the custom procs, if requested
// we can install two kinds of custom procedures for use in connection with
// the standard dialog box: (1) a modal-dialog filter function, and (2) a hook
// function to handle the custom button in the dialog box
if (gUseExtendedProcs)
QTCmpr_InstallExtendedProcs(myComponent, (long)myPixMap);
// set up some default settings for the compression dialog
SCDefaultPixMapSettings(myComponent, myPixMap, true);
// clear out the default frame rate chosen by Standard Compression (a frame rate
// of 0 means to use the rate of the source movie)
myErr = SCGetInfo(myComponent, scTemporalSettingsType, &myTimeSettings);
if (myErr != noErr)
goto bail;
myTimeSettings.frameRate = 0;
SCSetInfo(myComponent, scTemporalSettingsType, &myTimeSettings);
// request image compression settings from the user; in other words, put up the dialog box
myErr = SCRequestSequenceSettings(myComponent);
if (myErr == scUserCancelled)
goto bail;
// get a copy of the temporal settings the user entered; we'll need them for some
// of our calculations (in a simpler application, we'd never have to look at them)
SCGetInfo(myComponent, scTemporalSettingsType, &myTimeSettings);
//////////
//
// adjust the data rate [to be supplied][relevant only for movies that have sound tracks]
//
//////////
//////////
//
// adjust the sample count
//
// if the user wants to resample the frame rate of the movie (as indicated a non-zero
// value in the frame rate field) calculate the number of frames and duration for the new movie
//
//////////
if (myTimeSettings.frameRate != 0) {
long myDuration = GetMovieDuration(mySrcMovie);
long myTimeScale = GetMovieTimeScale(mySrcMovie);
float myFloat = (float)myDuration * myTimeSettings.frameRate;
myNumFrames = myFloat / myTimeScale / 65536;
if (myNumFrames == 0)
myNumFrames = 1;
}
//////////
//
// get the name and location of the new movie file
//
//////////
// prompt the user for a file to put the compressed image into; in theory, the name
// should have a file extension appropriate to the type of compressed data selected by the user;
// this is left as an exercise for the reader
QTFrame_PutFile(myMoviePrompt, myMovieFileName, &myFile, &myIsSelected, &myIsReplacing);
if (!myIsSelected)
goto bail;
// delete any existing file of that name
if (myIsReplacing) {
myErr = DeleteMovieFile(&myFile);
if (myErr != noErr)
goto bail;
}
//////////
//
// create the target movie
//
//////////
myErr = CreateMovieFile(&myFile, sigMoviePlayer, smSystemScript,
createMovieFileDeleteCurFile | createMovieFileDontCreateResFile, &myRefNum, &myDstMovie);
if (myErr != noErr)
goto bail;
// create a new video movie track with the same dimensions as the entire source movie
myDstTrack = NewMovieTrack(myDstMovie,
(long)(myRect.right - myRect.left) << 16,
(long)(myRect.bottom - myRect.top) << 16, kNoVolume);
if (myDstTrack == NULL)
goto bail;
// create a media for the new track with the same time scale as the source movie;
// because the time scales are the same, we don't have to do any time scale conversions.
myDstMedia = NewTrackMedia(myDstTrack, VIDEO_TYPE, GetMovieTimeScale(mySrcMovie), 0, 0);
if (myDstMedia == NULL)
goto bail;
// copy the user data and settings from the source to the dest movie
CopyMovieSettings(mySrcMovie, myDstMovie);
// set movie matrix to identity and clear the movie clip region (because the conversion
// process transforms and composites all video tracks into one untransformed video track)
SetIdentityMatrix(&myMatrix);
SetMovieMatrix(myDstMovie, &myMatrix);
SetMovieClipRgn(myDstMovie, NULL);
// set the movie to highest quality imaging
SetMoviePlayHints(mySrcMovie, hintsHighQuality, hintsHighQuality);
myImageDesc = (ImageDescriptionHandle)NewHandleClear(sizeof(ImageDescription));
if (myImageDesc == NULL)
goto bail;
// prepare for adding frames to the movie
myErr = BeginMediaEdits(myDstMedia);
if (myErr != noErr)
goto bail;
//////////
//
// compress the image sequence
//
// we are going to step through the source movie, compress each frame, and then add
// the compressed frame to the destination movie
//
//////////
myErr = SCCompressSequenceBegin(myComponent, myPixMap, NULL, &myImageDesc);
if (myErr != noErr)
goto bail;
#if USE_ASYNC_COMPRESSION
myFlags = codecFlagUpdatePrevious + codecFlagUpdatePreviousComp + codecFlagLiveGrab;
SCSetInfo(myComponent, scCodecFlagsType, &myFlags);
#endif
// clear out our image GWorld and set movie to draw into it
SetGWorld(myImageWorld, NULL);
EraseRect(&myRect);
SetMovieGWorld(mySrcMovie, myImageWorld, GetGWorldDevice(myImageWorld));
// set current time value to beginning of the source movie
myCurMovieTime = 0;
// get a value we'll need inside the loop
mySrcMovieDuration = GetMovieDuration(mySrcMovie);
// loop through all of the interesting times we counted above
for (myFrameNum = 0; myFrameNum < myNumFrames; myFrameNum++) {
short mySyncFlag;
TimeValue myDuration;
long myDataSize;
Handle myCompressedData;
//////////
//
// get the next frame of the source movie
//
//////////
// if we are resampling the movie, step to the next frame
if (myTimeSettings.frameRate) {
myCurMovieTime = myFrameNum * mySrcMovieDuration / (myNumFrames - 1);
myDuration = mySrcMovieDuration / myNumFrames;
} else {
OSType myMediaType = VIDEO_TYPE;
myFlags = nextTimeMediaSample;
// if this is the first frame, include the frame we are currently on
if (myFrameNum == 0)
myFlags |= nextTimeEdgeOK;
// if we are maintaining the frame durations of the source movie,
// skip to the next interesting time and get the duration for that frame
GetMovieNextInterestingTime(mySrcMovie, myFlags, 1, &myMediaType, myCurMovieTime, 0, &myCurMovieTime, &myDuration);
}
SetMovieTimeValue(mySrcMovie, myCurMovieTime);
MoviesTask(mySrcMovie, 0);
MoviesTask(mySrcMovie, 0);
MoviesTask(mySrcMovie, 0);
// if data rate constraining is being done, tell Standard Compression the
// duration of the current frame in milliseconds; we only need to do this
// if the frames have variable durations
if (!SCGetInfo(myComponent, scDataRateSettingsType, &myRateSettings)) {
myRateSettings.frameDuration = myDuration * 1000 / GetMovieTimeScale(mySrcMovie);
SCSetInfo(myComponent, scDataRateSettingsType, &myRateSettings);
}
//////////
//
// compress the current frame of the source movie and add it to the destination movie
//
//////////
// if SCCompressSequenceFrame completes successfully, myCompressedData will hold
// a handle to the newly-compressed image data and myDataSize will be the size of
// the compressed data (which will usually be different from the size of the handle);
// also mySyncFlag will be a value that that indicates whether or not the frame is a
// key frame (and which we pass directly to AddMediaSample); note that we do not need
// to dispose of myCompressedData, since SCCompressSequenceEnd will do that for us
#if !USE_ASYNC_COMPRESSION
myErr = SCCompressSequenceFrame(myComponent, myPixMap, &myRect, &myCompressedData, &myDataSize, &mySyncFlag);
if (myErr != noErr)
goto bail;
#else
if (myICMComplProcPtr == NULL) {
myICMComplProcRec.completionProc = NewICMCompletionProc(QTCmpr_CompletionProc);
myICMComplProcRec.completionRefCon = (long)&myICMComplProcErr;
myICMComplProcPtr = &myICMComplProcRec;
}
myICMComplProcErr = kAsyncDefaultValue;
myErr = SCCompressSequenceFrameAsync(myComponent, myPixMap, &myRect, &myCompressedData, &myDataSize, &mySyncFlag, myICMComplProcPtr);
if (myErr != noErr)
goto bail;
// spin our wheels while we're waiting for the compress call to complete
while (myICMComplProcErr == kAsyncDefaultValue) {
EventRecord myEvent;
WaitNextEvent(0, &myEvent, 60, NULL);
SCAsyncIdle(myComponent);
}
myErr = myICMComplProcErr;
#endif
myErr = AddMediaSample(myDstMedia, myCompressedData, 0, myDataSize, myDuration, (SampleDescriptionHandle)myImageDesc, 1, mySyncFlag, NULL);
if (myErr != noErr)
goto bail;
}
// close the compression sequence; this will dispose of the image description
// and compressed data handles allocated by SCCompressSequenceBegin
SCCompressSequenceEnd(myComponent);
//////////
//
// add the media data to the destination movie
//
//////////
myErr = EndMediaEdits(myDstMedia);
if (myErr != noErr)
goto bail;
InsertMediaIntoTrack(myDstTrack, 0, 0, GetMediaDuration(myDstMedia), fixed1);
// add the movie resource to the dst movie file.
myErr = AddMovieResource(myDstMovie, myRefNum, NULL, NULL);
if (myErr != noErr)
goto bail;
// flatten the movie data [to be supplied]
// close the movie file
CloseMovieFile(myRefNum);
bail:
// close the Standard Compression component
if (myComponent != NULL)
CloseComponent(myComponent);
if (mySrcMovie != NULL) {
// restore the source movie's original graphics port and device
SetMovieGWorld(mySrcMovie, mySavedPort, mySavedDevice);
// restore the source movie's original movie time
SetMovieTimeValue(mySrcMovie, myOrigMovieTime);
}
// restore the original graphics port and device
SetGWorld(mySavedPort, mySavedDevice);
// delete the GWorld we were drawing frames into
if (myImageWorld != NULL)
DisposeGWorld(myImageWorld);
#if USE_ASYNC_COMPRESSION
if (myICMComplProcRec.completionProc != NULL)
DisposeICMCompletionUPP(myICMComplProcRec.completionProc);
#endif
free(myMoviePrompt);
free(myMovieFileName);
}