static OSErr SpriteUtils_GetImageGroupID (QTAtomContainer theKeySample, QTAtom theImagesContainerAtom, short theImageIndex, long *theGroupID)
{
QTAtom myImageAtom, myImageGroupAtom;
OSErr myErr = noErr;
myImageAtom = QTFindChildByIndex(theKeySample, theImagesContainerAtom, kSpriteImageAtomType, theImageIndex, NULL);
if (myImageAtom == 0) {
myErr = cannotFindAtomErr;
goto bail;
}
myImageGroupAtom = QTFindChildByIndex(theKeySample, myImageAtom, kSpriteImageGroupIDAtomType, 1, NULL);
if (myImageGroupAtom == 0)
*theGroupID = 0;
else {
myErr = QTCopyAtomDataToPtr(theKeySample, myImageGroupAtom, false, sizeof(*theGroupID), (Ptr)theGroupID, NULL);
if (myErr != noErr)
goto bail;
*theGroupID = EndianU32_BtoN(*theGroupID); // return native endian long
}
bail:
return(myErr);
}
void pix_videoDarwin :: brightnessMess(float X)
{
QTAtomContainer atomContainer;
QTAtom featureAtom;
VDIIDCFeatureSettings settings;
ComponentDescription desc;
ComponentResult result = paramErr;
//check if device is IIDC
GetComponentInfo((Component)m_vdig, &desc, NULL, NULL, NULL);
if (vdSubtypeIIDC != desc.componentSubType){
m_brightness = (unsigned short)(65536. * X);
VDSetBrightness(m_vdig,&m_brightness);
VDGetBrightness(m_vdig,&m_brightness);
post("brightness is %d",m_brightness);
}
else
{
//IIDC stuff
//these things are as stubborn as they are stupid - find one that conforms to spec!
//vdIIDCFeatureBrightness
result = VDIIDCGetFeaturesForSpecifier(m_vdig, vdIIDCFeatureBrightness, &atomContainer);
if (noErr != result) {
error("VDIIDCGetFeaturesForSpecifier returned %d",result);
}
featureAtom = QTFindChildByIndex(atomContainer, kParentAtomIsContainer,
vdIIDCAtomTypeFeature, 1, NULL);
if (0 == featureAtom) error("featureAtom not found");
result = QTCopyAtomDataToPtr(atomContainer,
QTFindChildByID(atomContainer, featureAtom,
vdIIDCAtomTypeFeatureSettings,
vdIIDCAtomIDFeatureSettings, NULL),
true, sizeof(settings), &settings, NULL);
settings.state.flags = (vdIIDCFeatureFlagOn |
vdIIDCFeatureFlagManual |
vdIIDCFeatureFlagRawControl);
settings.state.value = X;
result = QTSetAtomData(atomContainer,
QTFindChildByID(atomContainer, featureAtom,
vdIIDCAtomTypeFeatureSettings,
vdIIDCAtomIDFeatureSettings, NULL),
sizeof(settings), &settings);
result = VDIIDCSetFeatures(m_vdig, atomContainer);
}
}
void pix_videoDarwin :: gainMess(float X)
{
QTAtomContainer atomContainer;
QTAtom featureAtom;
VDIIDCFeatureSettings settings;
ComponentDescription desc;
ComponentResult result = paramErr;
//check if device is IIDC
GetComponentInfo((Component)m_vdig, &desc, NULL, NULL, NULL);
if (vdSubtypeIIDC == desc.componentSubType){
//IIDC stuff
//vdIIDCFeatureGain
result = VDIIDCGetFeaturesForSpecifier(m_vdig, vdIIDCFeatureWhiteBalanceU, &atomContainer);
if (noErr != result) {
error("VDIIDCGetFeaturesForSpecifier vdIIDCFeatureExposure returned %d",result);
}
featureAtom = QTFindChildByIndex(atomContainer, kParentAtomIsContainer,
vdIIDCAtomTypeFeature, 1, NULL);
if (0 == featureAtom) error("featureAtom vdIIDCFeatureExposure not found");
result = QTCopyAtomDataToPtr(atomContainer,
QTFindChildByID(atomContainer, featureAtom,
vdIIDCAtomTypeFeatureSettings,
vdIIDCAtomIDFeatureSettings, NULL),
true, sizeof(settings), &settings, NULL);
settings.state.flags = (vdIIDCFeatureFlagOn |
vdIIDCFeatureFlagManual |
vdIIDCFeatureFlagRawControl);
settings.state.value = X;
result = QTSetAtomData(atomContainer,
QTFindChildByID(atomContainer, featureAtom,
vdIIDCAtomTypeFeatureSettings,
vdIIDCAtomIDFeatureSettings, NULL),
sizeof(settings), &settings);
result = VDIIDCSetFeatures(m_vdig, atomContainer);
}
}
