static gboolean
device_select (GstOSXVideoSrc * src)
{
Str63 pstr;
ComponentResult err;
gchar *sgname;
int inputIndex;
/* if there's no device id set, attempt to select default device */
if (!src->device_id && !device_set_default (src))
return FALSE;
if (!parse_device_id (src->device_id, &sgname, &inputIndex)) {
GST_ERROR_OBJECT (src, "unable to parse device id: [%s]", src->device_id);
return FALSE;
}
c2pstrcpy (pstr, sgname);
g_free (sgname);
err = SGSetChannelDevice (src->video_chan, (StringPtr) & pstr);
if (err != noErr) {
GST_ERROR_OBJECT (src, "SGSetChannelDevice returned %d", (int) err);
return FALSE;
}
err = SGSetChannelDeviceInput (src->video_chan, inputIndex);
if (err != noErr) {
GST_ERROR_OBJECT (src, "SGSetChannelDeviceInput returned %d", (int) err);
return FALSE;
}
return TRUE;
}
// Create the Sequence Grabber Audio Channel
void QuicktimeLiveImageStream::createSequenceGrabberAudioChannel()
{
// Check capability and setting of Sequence Grabber
GDHandle origDevice;
CGrafPtr origPort;
// Create GWorld
GetGWorld (&origPort, &origDevice);
SetGWorld (m_gw, NULL); // set current graphics port to offscreen
// Setup
// Get a video channel
ComponentResult result = SGNewChannel (m_gSeqGrabber, SoundMediaType, &m_gSoundChannel);
if ((m_gSoundChannel != nil) && (result == noErr))
{
result = SGInitChannel(m_gSoundChannel, m_gSeqGrabber);
// result = SGSetChannelUsage (m_gSoundChannel, seqGrabPreview );
// Usage
if (g_s_use_sg_record)
result = SGSetChannelUsage (m_gSoundChannel, seqGrabRecord | seqGrabLowLatencyCapture);
else
{
result = SGSetChannelUsage (m_gSoundChannel, seqGrabPreview | seqGrabRecord | seqGrabLowLatencyCapture);
}
// Get
Str255 deviceName;
Str255 inputName;
short inputNumber;
result = SGGetChannelDeviceAndInputNames(m_gSoundChannel, deviceName, inputName, &inputNumber);
// Set
// OSG_DEBUG << "Setting up audio component from input prefs" << std::endl;
result = SGSetChannelDevice (m_gSoundChannel, m_soundDeviceIDStr);
result = SGSetChannelDeviceInput(m_gSoundChannel, m_soundDeviceInputID);
// Set the volume low to prevent feedback when we start the preview,
// in case the mic is anywhere near the speaker.
short volume = 0;
result = SGGetChannelVolume (m_gSoundChannel, &volume);
// result = SGSetChannelVolume (m_gSoundChannel, 255);
// Inform
result = SGChangedSource (m_gSeqGrabber, m_gSoundChannel);
}
else
{
OSG_FATAL << "Could not create SGNewChannel for Sound Channel" << std::endl;
}
// Set GWorld back
SetGWorld(origPort, origDevice);
}
// Create the Sequence Grabber Video Channel
void QuicktimeLiveImageStream::createSequenceGrabberVideoChannel()
{
// Check capability and setting of Sequence Grabber
GDHandle origDevice;
CGrafPtr origPort;
// Create GWorld
GetGWorld (&origPort, &origDevice);
SetGWorld (m_gw, NULL); // set current graphics port to offscreen
// Setup
// Get a video channel
ComponentResult result = SGNewChannel (m_gSeqGrabber, VideoMediaType, &m_gVideoChannel);
if ((m_gVideoChannel != nil) && (result == noErr))
{
result = SGInitChannel(m_gVideoChannel, m_gSeqGrabber);
Rect gActiveVideoRect;
// Usage
if (g_s_use_sg_record)
result = SGSetChannelUsage (m_gVideoChannel, seqGrabRecord | seqGrabLowLatencyCapture);
else
{
result = SGSetChannelUsage (m_gVideoChannel, seqGrabPreview);
}
// result = SGSetUseScreenBuffer(m_gVideoChannel, FALSE);
// Set
OSG_DEBUG << "Setting up vdig from input prefs" << std::endl;
result = SGSetChannelDevice ( m_gVideoChannel, m_videoDeviceIDStr);
result = SGSetChannelDeviceInput( m_gVideoChannel, m_videoDeviceInputID);
// result = SGSetChannelPlayFlags ( m_gVideoChannel, channelPlayFast | channelPlayHighQuality | channelPlayAllData);
result = SGSetChannelPlayFlags ( m_gVideoChannel, channelPlayFast );
VideoDigitizerComponent vdig = SGGetVideoDigitizerComponent(m_gVideoChannel);
VideoDigitizerError vid_err;
vid_err = VDSetInputStandard (vdig, palIn);
OSG_DEBUG << "Setup vdig from input prefs:" << std::endl;
print_video_component_capability(vdig);
result = SGVideoDigitizerChanged( m_gVideoChannel);
result = SGGetSrcVideoBounds ( m_gVideoChannel, &gActiveVideoRect);
result = SGSetChannelBounds ( m_gVideoChannel, &gActiveVideoRect);
result = SGChangedSource (m_gSeqGrabber, m_gVideoChannel);
Fixed frame_rate;
result = SGGetFrameRate (m_gVideoChannel, &frame_rate);
result = SGSetFrameRate (m_gVideoChannel, 100);
//
// Sound
/*
long sound_id;
Str255 sound_driver_name;
char* sound_driver_name_cstr;
vid_err = VDGetSoundInputSource(vdig, (long)m_videoDeviceInputID, &sound_id);
vid_err = VDGetSoundInputDriver(vdig, sound_driver_name);
sound_driver_name_cstr = pstr_printable(sound_driver_name);
OSG_DEBUG << "vdig sound driver name :" << sound_driver_name_cstr << std::endl;
OSG_DEBUG << "vdig sound driver id :" << sound_id << std::endl;
*/
}
else
{
OSG_FATAL << "Could not create SGNewChannel for Video Channel" << std::endl;
}
// Set GWorld back
SetGWorld(origPort, origDevice);
}
//--------------------------------------------------------------------
bool ofVideoGrabber::qtSelectDevice(int deviceNumber, bool didWeChooseADevice){
//note - check for memory freeing possibly needed for the all SGGetChannelDeviceList mac stuff
// also see notes in listDevices() regarding new enunemeration method.
//Generate a device list and enumerate
//all devices availble to the channel
SGDeviceList deviceList;
SGGetChannelDeviceList(gVideoChannel, sgDeviceListIncludeInputs, &deviceList);
unsigned char pascalName[256];
unsigned char pascalNameInput[256];
int numDevices = (*deviceList)->count;
if(numDevices == 0){
ofLog(OF_LOG_ERROR, "error: No catpure devices found");
return false;
}
int deviceCount = 0;
for(int i = 0 ; i < numDevices; ++i)
{
SGDeviceName nameRec;
nameRec = (*deviceList)->entry[i];
SGDeviceInputList deviceInputList = nameRec.inputs;
int numInputs = 0;
if( deviceInputList ) numInputs = ((*deviceInputList)->count);
memcpy(pascalName, (*deviceList)->entry[i].name, sizeof(char) * 256);
memset(pascalNameInput, 0, sizeof(char)*256);
//this means we can use the capture method
if(nameRec.flags != sgDeviceNameFlagDeviceUnavailable){
//if we have a capture 'device' (qt's word not mine - I would prefer 'system' ) that is ready to be used
//we go through its inputs to list all physical devices - as there could be more than one!
for(int j = 0; j < numInputs; j++){
//if our 'device' has inputs we get their names here
if( deviceInputList ){
SGDeviceInputName inputNameRec = (*deviceInputList)->entry[j];
memcpy(pascalNameInput, inputNameRec.name, sizeof(char) * 256);
}
//if the device number matches we try and setup the device
//if we didn't specifiy a device then we will try all devices till one works!
if( deviceCount == deviceNumber || !didWeChooseADevice ){
ofLog(OF_LOG_NOTICE, "attempting to open device[%i] %s - %s", deviceCount, p2cstr(pascalName), p2cstr(pascalNameInput) );
OSErr err1 = SGSetChannelDevice(gVideoChannel, pascalName);
OSErr err2 = SGSetChannelDeviceInput(gVideoChannel, j);
int successLevel = 0;
//if there were no errors then we have opened the device without issue
if ( err1 == noErr && err2 == noErr){
successLevel = 2;
}
//parameter errors are not fatal so we will try and open but will caution the user
else if ( (err1 == paramErr || err1 == noErr) && (err2 == noErr || err2 == paramErr) ){
successLevel = 1;
}
//the device is opened!
if ( successLevel > 0 ){
deviceName = (char *)p2cstr(pascalName);
deviceName += "-";
deviceName += (char *)p2cstr(pascalNameInput);
if(successLevel == 2)ofLog(OF_LOG_NOTICE, "device opened successfully");
else ofLog(OF_LOG_WARNING, "device opened with some paramater errors - should be fine though!");
//no need to keep searching - return that we have opened a device!
return true;
}else{
//if we selected a device in particular but failed we want to go through the whole list again - starting from 0 and try any device.
//so we return false - and try one more time without a preference
if( didWeChooseADevice ){
ofLog(OF_LOG_WARNING, "problems setting device[%i] %s - %s *****", deviceNumber, p2cstr(pascalName), p2cstr(pascalNameInput));
return false;
}else{
ofLog(OF_LOG_WARNING, "unable to open device, trying next device");
}
}
}
//we count this way as we need to be able to distinguish multiple inputs as devices
deviceCount++;
}
}else{
//ofLog(OF_LOG_ERROR, "(unavailable) device[%i] %s", deviceCount, p2cstr(pascalName) );
deviceCount++;
}
}
return false;
}
void pix_videoDarwin :: InitSeqGrabber()
{
OSErr anErr;
Rect m_srcRect = {0,0, m_vidYSize, m_vidXSize};
SGDeviceList devices;
short deviceIndex,inputIndex;
short deviceCount = 0;
SGDeviceInputList theSGInputList = NULL;
bool showInputsAsDevices;
// UserData *uD;
/*
int num_components = 0;
Component c = 0;
ComponentDescription cd;
cd.componentType = SeqGrabComponentType;
cd.componentSubType = 0;
cd.componentManufacturer = 0;
cd.componentFlags = 0;
cd.componentFlagsMask = 0;
while((c = FindNextComponent(c, &cd)) != 0) {
num_components++; } // add component c to the list.
// post("number of SGcomponents: %d",num_components);
*/
m_sg = OpenDefaultComponent(SeqGrabComponentType, 0);
if(m_sg==NULL){
error("could not open default component");
return;
}
anErr = SGInitialize(m_sg);
if(anErr!=noErr){
error("could not initialize SG error %d",anErr);
return;
}
anErr = SGSetDataRef(m_sg, 0, 0, seqGrabDontMakeMovie);
if (anErr != noErr){
error("dataref failed with error %d",anErr);
}
anErr = SGNewChannel(m_sg, VideoMediaType, &m_vc);
if(anErr!=noErr){
error("could not make new SG channnel error %d",anErr);
return;
}
anErr = SGGetChannelDeviceList(m_vc, sgDeviceListIncludeInputs, &devices);
if(anErr!=noErr){
error("could not get SG channnel Device List");
}else{
deviceCount = (*devices)->count;
deviceIndex = (*devices)->selectedIndex;
logpost(NULL, 3, "SG channnel Device List count %d index %d",deviceCount,deviceIndex);
int i;
for (i = 0; i < deviceCount; i++){
logpost(NULL, 3, "SG channnel Device List %.*s",
(*devices)->entry[i].name[0],
(*devices)->entry[i].name+1);
}
SGGetChannelDeviceAndInputNames(m_vc, NULL, NULL, &inputIndex);
showInputsAsDevices = ((*devices)->entry[deviceIndex].flags) & sgDeviceNameFlagShowInputsAsDevices;
theSGInputList = ((SGDeviceName *)(&((*devices)->entry[deviceIndex])))->inputs; //fugly
//we should have device names in big ass undocumented structs
//walk through the list
//for (i = 0; i < deviceCount; i++){
for (i = 0; i < inputIndex; i++){
logpost(NULL, 3, "SG channnel Input Device List %d %.*s",
i,
(*theSGInputList)->entry[i].name[0],
(*theSGInputList)->entry[i].name+1);
}
}
//this call sets the input device
if (m_inputDevice > 0 && m_inputDevice < deviceCount) //check that the device is not out of bounds
//anErr = SGSetChannelDeviceInput(m_vc,m_inputDevice);
logpost(NULL, 3, "SGSetChannelDevice trying %s",
(*devices)->entry[m_inputDevice].name[0],
(*devices)->entry[m_inputDevice].name+1);
anErr = SGSetChannelDevice(m_vc, (*devices)->entry[m_inputDevice].name);
if(anErr!=noErr) error("SGSetChannelDevice returned error %d",anErr);
anErr = SGSetChannelDeviceInput(m_vc,m_inputDeviceChannel);
if(anErr!=noErr) error("SGSetChannelDeviceInput returned error %d",anErr);
/* //attempt to save SG settings to disk
NewUserData(uD);
SGGetSettings(m_sg,uD,0);
short uDCount;
uDCount = CountUserDataType(*uD,sgClipType);
post("UserDataType count %d",uDCount);
Handle myHandle;
PutUserDataIntoHandle(*uD,myHandle);
int myFile;
myFile = open("/Users/lincoln/Documents/temp",O_CREAT | O_RDWR, 0600);
write(myFile,myHandle,4096);
close(myFile);
*/
//grab the VDIG info from the SGChannel
m_vdig = SGGetVideoDigitizerComponent(m_vc);
vdigErr = VDGetDigitizerInfo(m_vdig,&m_vdigInfo); //not sure if this is useful
Str255 vdigName;
memset(vdigName,0,255);
vdigErr = VDGetInputName(m_vdig,m_inputDevice,vdigName);
logpost(NULL, 3, "vdigName is %s",vdigName); // pascal string?
Rect vdRect;
vdigErr = VDGetDigitizerRect(m_vdig,&vdRect);
logpost(NULL, 3, "digitizer rect is top %d bottom %d left %d right %d",vdRect.top,vdRect.bottom,vdRect.left,vdRect.right);
vdigErr = VDGetActiveSrcRect(m_vdig,0,&vdRect);
logpost(NULL, 3, "active src rect is top %d bottom %d left %d right %d",vdRect.top,vdRect.bottom,vdRect.left,vdRect.right);
anErr = SGSetChannelBounds(m_vc, &m_srcRect);
if(anErr!=noErr){
error("could not set SG ChannelBounds ");
}
anErr = SGSetVideoRect(m_vc, &m_srcRect);
if(anErr!=noErr){
error("could not set SG Rect ");
}
anErr = SGSetChannelUsage(m_vc, seqGrabPreview);
if(anErr!=noErr){
error("could not set SG ChannelUsage ");
}
switch (m_quality){
case 0:
anErr = SGSetChannelPlayFlags(m_vc, channelPlayNormal);
post("set SG NormalQuality");
break;
case 1:
anErr = SGSetChannelPlayFlags(m_vc, channelPlayHighQuality);
post("set SG HighQuality");
break;
case 2:
anErr = SGSetChannelPlayFlags(m_vc, channelPlayFast);
post("set SG FastQuality");
break;
case 3:
anErr = SGSetChannelPlayFlags(m_vc, channelPlayAllData);
post("set SG PlayAlldata");
break;
}
if (m_colorspace==GL_BGRA_EXT){
m_pixBlock.image.xsize = m_vidXSize;
m_pixBlock.image.ysize = m_vidYSize;
m_pixBlock.image.setCsizeByFormat(GL_RGBA_GEM);
m_pixBlock.image.reallocate();
m_rowBytes = m_vidXSize*4;
anErr = QTNewGWorldFromPtr (&m_srcGWorld,
k32ARGBPixelFormat,
&m_srcRect,
NULL,
NULL,
0,
m_pixBlock.image.data,
m_rowBytes);
post ("using RGB");
}else{
m_pixBlock.image.xsize = m_vidXSize;
m_pixBlock.image.ysize = m_vidYSize;
m_pixBlock.image.csize = 2;
m_pixBlock.image.format = GL_YCBCR_422_APPLE;
#ifdef __VEC__
m_pixBlock.image.type = GL_UNSIGNED_SHORT_8_8_REV_APPLE;
#else
m_pixBlock.image.type = GL_UNSIGNED_SHORT_8_8_APPLE;
#endif
m_pixBlock.image.reallocate();
m_rowBytes = m_vidXSize*2;
anErr = QTNewGWorldFromPtr (&m_srcGWorld,
// k422YpCbCr8CodecType,
k422YpCbCr8PixelFormat,
// '2vuy',
// kComponentVideoUnsigned,
&m_srcRect,
NULL,
NULL,
0,
m_pixBlock.image.data,
m_rowBytes);
post ("using YUV");
}
if (anErr!= noErr)
{
error("%d error at QTNewGWorldFromPtr", anErr);
return;
}
if (NULL == m_srcGWorld)
{
error("could not allocate off screen");
return;
}
SGSetGWorld(m_sg,(CGrafPtr)m_srcGWorld, NULL);
SGStartPreview(m_sg); //moved to starttransfer?
m_haveVideo = 1;
}