Boolean QTInfo_MovieHasPoster (Movie theMovie)
{
long myCount = 0L;
long myIndex = 0L;
Track myTrack = NULL;
long myUsage = 0L;
Boolean myHasPoster = true;
// make sure that some track is used in the movie poster
myCount = GetMovieTrackCount(theMovie);
for (myIndex = 1; myIndex <= myCount; myIndex++) {
myTrack = GetMovieIndTrack(theMovie, myIndex);
if (myTrack == NULL)
continue;
myUsage = GetTrackUsage(myTrack);
if (myUsage & trackUsageInPoster)
break; // we found a track with the trackUsageInPoster flag set; break out of the loop
}
if (myIndex > myCount)
myHasPoster = false; // we went thru all tracks without finding one with a poster usage
return(myHasPoster);
}
Boolean QTInfo_MovieHasPreview (Movie theMovie)
{
TimeValue myStart;
TimeValue myDuration;
long myCount = 0L;
long myIndex = 0L;
Track myTrack = NULL;
long myUsage = 0L;
Boolean myHasPreview = false;
// see if the movie has a positive preview duration
GetMoviePreviewTime(theMovie, &myStart, &myDuration);
if (myDuration > 0)
myHasPreview = true;
// make sure that some track is used in the movie preview
myCount = GetMovieTrackCount(theMovie);
for (myIndex = 1; myIndex <= myCount; myIndex++) {
myTrack = GetMovieIndTrack(theMovie, myIndex);
if (myTrack == NULL)
continue;
myUsage = GetTrackUsage(myTrack);
if (myUsage & trackUsageInPreview)
break; // we found a track with the trackUsageInPreview flag set; break out of the loop
}
if (myIndex > myCount)
myHasPreview = false; // we went thru all tracks without finding one with a preview usage
return(myHasPreview);
}
Boolean QTDR_IsMovieSelfContained (Movie theMovie)
{
long myTrackCount = 0L;
long myTrackIndex = 0L;
short myMediaRefCount = 0L;
short myMediaRefIndex = 0L;
Media myMedia = NULL;
long myAttrs = 0L;
OSErr myErr = noErr;
myTrackCount = GetMovieTrackCount(theMovie);
for (myTrackIndex = 1; myTrackIndex <= myTrackCount; myTrackIndex++) {
myMedia = GetTrackMedia(GetMovieIndTrack(theMovie, myTrackIndex));
if (myMedia != NULL) {
myErr = GetMediaDataRefCount(myMedia, &myMediaRefCount);
if (myErr == noErr) {
for (myMediaRefIndex = 1; myMediaRefIndex <= myMediaRefCount; myMediaRefIndex++) {
myErr = GetMediaDataRef(myMedia, myMediaRefIndex, NULL, NULL, &myAttrs);
if (myErr == noErr) {
if (!(myAttrs & dataRefSelfReference))
return(false);
}
}
}
}
}
return(true);
}
/*
call-seq: load(movie, index)
Loads a QuickTime track from a given movie. This is done automatically
when calling movie.tracks.
*/
static VALUE track_load(VALUE obj, VALUE movie_obj, VALUE index_obj)
{
RTRACK(obj)->track = GetMovieIndTrack(MOVIE(movie_obj), NUM2INT(index_obj));
if (!RTRACK(obj)->track)
rb_raise(eQuickTime, "Unable to fetch track for movie at index %d", NUM2INT(index_obj));
return obj;
}
void MovieGlHap::allocateVisualContext()
{
// Load HAP Movie
if( HapQTQuickTimeMovieHasHapTrackPlayable( getObj()->mMovie ) )
{
// QT Visual Context attributes
OSStatus err = noErr;
QTVisualContextRef * visualContext = (QTVisualContextRef*)&getObj()->mVisualContext;
CFDictionaryRef pixelBufferOptions = HapQTCreateCVPixelBufferOptionsDictionary();
const CFStringRef keys[] = { kQTVisualContextPixelBufferAttributesKey };
CFDictionaryRef visualContextOptions = ::CFDictionaryCreate(kCFAllocatorDefault, (const void**)&keys, (const void**)&pixelBufferOptions, sizeof(keys)/sizeof(keys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
err = QTPixelBufferContextCreate( kCFAllocatorDefault, visualContextOptions, visualContext );
::CFRelease( pixelBufferOptions );
::CFRelease( visualContextOptions );
if( err != noErr ) {
CI_LOG_E( "HAP ERROR :: " << err << " couldnt create visual context." );
return;
}
// Set the movie's visual context
err = SetMovieVisualContext( getObj()->mMovie, *visualContext );
if( err != noErr ) {
CI_LOG_E( "HAP ERROR :: " << err << " SetMovieVisualContext." );
return;
}
}
// Get codec name
for (long i = 1; i <= GetMovieTrackCount(getObj()->mMovie); i++) {
Track track = GetMovieIndTrack(getObj()->mMovie, i);
Media media = GetTrackMedia(track);
OSType mediaType;
GetMediaHandlerDescription(media, &mediaType, NULL, NULL);
if (mediaType == VideoMediaType)
{
// Get the codec-type of this track
ImageDescriptionHandle imageDescription = (ImageDescriptionHandle)NewHandle(0); // GetMediaSampleDescription will resize it
GetMediaSampleDescription(media, 1, (SampleDescriptionHandle)imageDescription);
OSType codecType = (*imageDescription)->cType;
DisposeHandle((Handle)imageDescription);
switch (codecType) {
case 'Hap1': mCodec = Codec::HAP; break;
case 'Hap5': mCodec = Codec::HAP_A; break;
case 'HapY': mCodec = Codec::HAP_Q; break;
default: mCodec = Codec::UNSUPPORTED; break;
}
}
}
// Set framerate callback
this->setNewFrameCallback( updateMovieFPS, (void*)this );
}
OSErr QTInfo_ClearPreview (Movie theMovie, MovieController theMC)
{
long myCount = 0L;
long myIndex = 0L;
Track myTrack = NULL;
long myUsage = 0L;
ComponentResult myErr = noErr;
// set the movie preview start time and duration to 0
SetMoviePreviewTime(theMovie, 0, 0);
// remove all tracks that are used *only* in the movie preview
myCount = GetMovieTrackCount(theMovie);
for (myIndex = myCount; myIndex >= 1; myIndex--) {
myTrack = GetMovieIndTrack(theMovie, myIndex);
if (myTrack == NULL)
continue;
myUsage = GetTrackUsage(myTrack);
myUsage &= trackUsageInMovie | trackUsageInPreview | trackUsageInPoster;
if (myUsage == trackUsageInPreview)
DisposeMovieTrack(myTrack);
}
// add trackUsageInPreview to any remaining tracks that are in the movie
// (so that subsequently setting the preview to a selection will include
// these tracks)
myCount = GetMovieTrackCount(theMovie);
for (myIndex = 1; myIndex <= myCount; myIndex++) {
myTrack = GetMovieIndTrack(theMovie, myIndex);
if (myTrack == NULL)
continue;
myUsage = GetTrackUsage(myTrack);
if (myUsage & trackUsageInMovie)
SetTrackUsage(myTrack, myUsage | trackUsageInPreview);
}
myErr = MCMovieChanged(theMC, theMovie);
return((OSErr)myErr);
}
short QTTarg_GetLowestLayerInMovie (Movie theMovie)
{
long myCount = 0;
long myIndex;
short myLayer = 0;
short myMinLayer = kMaxLayerNumber;
myCount = GetMovieTrackCount(theMovie);
for (myIndex = 1; myIndex <= myCount; myIndex++) {
myLayer = GetTrackLayer(GetMovieIndTrack(theMovie, myIndex));
if (myLayer < myMinLayer)
myMinLayer = myLayer;
}
return(myMinLayer);
}
QTAudioReader (InputStream* const input_, const int trackNum_)
: AudioFormatReader (input_, TRANS (quickTimeFormatName)),
ok (false),
movie (0),
trackNum (trackNum_),
lastSampleRead (0),
lastThreadId (0),
extractor (0),
dataHandle (0)
{
JUCE_AUTORELEASEPOOL
bufferList.calloc (256, 1);
#if JUCE_WINDOWS
if (InitializeQTML (0) != noErr)
return;
#endif
if (EnterMovies() != noErr)
return;
bool opened = juce_OpenQuickTimeMovieFromStream (input_, movie, dataHandle);
if (! opened)
return;
{
const int numTracks = GetMovieTrackCount (movie);
int trackCount = 0;
for (int i = 1; i <= numTracks; ++i)
{
track = GetMovieIndTrack (movie, i);
media = GetTrackMedia (track);
OSType mediaType;
GetMediaHandlerDescription (media, &mediaType, 0, 0);
if (mediaType == SoundMediaType
&& trackCount++ == trackNum_)
{
ok = true;
break;
}
}
}
if (! ok)
return;
ok = false;
lengthInSamples = GetMediaDecodeDuration (media);
usesFloatingPointData = false;
samplesPerFrame = (int) (GetMediaDecodeDuration (media) / GetMediaSampleCount (media));
trackUnitsPerFrame = GetMovieTimeScale (movie) * samplesPerFrame
/ GetMediaTimeScale (media);
OSStatus err = MovieAudioExtractionBegin (movie, 0, &extractor);
unsigned long output_layout_size;
err = MovieAudioExtractionGetPropertyInfo (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
0, &output_layout_size, 0);
if (err != noErr)
return;
HeapBlock <AudioChannelLayout> qt_audio_channel_layout;
qt_audio_channel_layout.calloc (output_layout_size, 1);
err = MovieAudioExtractionGetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
output_layout_size, qt_audio_channel_layout, 0);
qt_audio_channel_layout[0].mChannelLayoutTag = kAudioChannelLayoutTag_Stereo;
err = MovieAudioExtractionSetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioChannelLayout,
output_layout_size,
qt_audio_channel_layout);
err = MovieAudioExtractionGetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof (inputStreamDesc),
&inputStreamDesc, 0);
if (err != noErr)
return;
inputStreamDesc.mFormatFlags = kAudioFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked
| kAudioFormatFlagsNativeEndian;
inputStreamDesc.mBitsPerChannel = sizeof (SInt16) * 8;
inputStreamDesc.mChannelsPerFrame = jmin ((UInt32) 2, inputStreamDesc.mChannelsPerFrame);
inputStreamDesc.mBytesPerFrame = sizeof (SInt16) * inputStreamDesc.mChannelsPerFrame;
inputStreamDesc.mBytesPerPacket = inputStreamDesc.mBytesPerFrame;
err = MovieAudioExtractionSetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Audio,
kQTMovieAudioExtractionAudioPropertyID_AudioStreamBasicDescription,
sizeof (inputStreamDesc),
&inputStreamDesc);
if (err != noErr)
return;
Boolean allChannelsDiscrete = false;
err = MovieAudioExtractionSetProperty (extractor,
kQTPropertyClass_MovieAudioExtraction_Movie,
kQTMovieAudioExtractionMoviePropertyID_AllChannelsDiscrete,
sizeof (allChannelsDiscrete),
&allChannelsDiscrete);
if (err != noErr)
return;
bufferList->mNumberBuffers = 1;
bufferList->mBuffers[0].mNumberChannels = inputStreamDesc.mChannelsPerFrame;
bufferList->mBuffers[0].mDataByteSize = jmax ((UInt32) 4096, (UInt32) (samplesPerFrame * inputStreamDesc.mBytesPerFrame) + 16);
dataBuffer.malloc (bufferList->mBuffers[0].mDataByteSize);
bufferList->mBuffers[0].mData = dataBuffer;
sampleRate = inputStreamDesc.mSampleRate;
bitsPerSample = 16;
numChannels = inputStreamDesc.mChannelsPerFrame;
detachThread();
ok = true;
}
