static PyObject *
unicap_getshutter(PyObject *self, PyObject *args)
{
unicap_handle_t handle = getHandle();
double dur = getduration(handle);
unicap_close(handle);
return PyFloat_FromDouble(dur);
}
/*
device_change_cb:
callback called when the user selected a video capture device
*/
static
void device_change_cb( UnicapgtkDeviceSelection *selection, gchar *device_id, GtkWidget *ugtk_display )
{
unicap_device_t device;
unicap_handle_t handle;
GtkWidget *property_dialog;
GtkWidget *format_selection;
GtkWidget *_window;
property_dialog = g_object_get_data( G_OBJECT( ugtk_display ), "property_dialog" );
g_assert( property_dialog );
format_selection = g_object_get_data( G_OBJECT( ugtk_display ), "format_selection" );
g_assert( format_selection );
_window = g_object_get_data( G_OBJECT( ugtk_display ), "app-window" );
g_assert( _window );
unicap_void_device( &device );
strcpy( device.identifier, device_id );
if( !SUCCESS( unicap_enumerate_devices( &device, &device, 0 ) ) ||
!SUCCESS( unicap_open( &handle, &device ) ) )
{
// device is not available anymore
g_printerr( "*** TODO: device rescan*** device not available!\n" );
return;
}
if( unicap_is_stream_locked( &device ) )
{
// could not acquire lock
unicap_close( handle );
g_printerr( "*** TODO: device rescan*** device is locked\n" );
return;
}
unicapgtk_video_display_set_handle( UNICAPGTK_VIDEO_DISPLAY( ugtk_display ), handle );
unicapgtk_property_dialog_set_handle( UNICAPGTK_PROPERTY_DIALOG( property_dialog ), handle );
unicapgtk_video_format_selection_set_handle( UNICAPGTK_VIDEO_FORMAT_SELECTION( format_selection ), handle );
unicap_close( handle );
gtk_window_set_title( GTK_WINDOW( _window ), device.identifier );
}
void print
int main (int argc, char **argv)
{
unicap_handle_t handle;
handle = open_imagingsource_camera();
print_formats(handle);
unicap_close (handle);
return 0;
}
static void unicapgtk_video_format_selection_destroy ( GtkObject *object )
{
UnicapgtkVideoFormatSelection *ugtk = UNICAPGTK_VIDEO_FORMAT_SELECTION( object );
if( ugtk->unicap_handle )
{
unicap_close( ugtk->unicap_handle );
ugtk->unicap_handle = NULL;
}
}
static PyObject *
unicap_setshutter(PyObject *self, PyObject *args)
{
unicap_handle_t handle = getHandle();
double shutter;
if(!PyArg_ParseTuple(args, "d", &shutter))
{
return NULL;
}
printf("arg was: %f\n", shutter);
setshutter(handle, shutter);
unicap_close(handle);
return PyLong_FromLong(1);
}
int UnicapCamera::Close(void)
{
if( !SUCCESS( unicap_stop_capture( *m_Handle ) ) )
{
printf( "Failed to stop capture on device: %s\n", m_Device->identifier );
}
if( !SUCCESS( unicap_close( *m_Handle ) ) )
{
printf("Failed to close the device: %s\n", m_Device->identifier );
return UNSPECIFIED_ERROR;
}
else
{
printf("UnicapCamera: %s closed\n",m_Device->identifier);
return 0;
}
}
static PyObject *
unicap_capture(PyObject *self, PyObject *args)
{
unicap_handle_t handle = getHandle();
capture(handle);
unicap_close(handle);
PyObject* imgarray = PyList_New(nrOfPixel);
int i;
for(i = 0; i < nrOfPixel; i++)
{
long l = buf[i];
PyObject* intensity = PyLong_FromLong(l);
PyList_SetItem(imgarray, i, intensity);
}
free(buf);
buf = NULL;
return imgarray;
}
static void unicapgtk_video_display_destroy( GtkObject *object )
{
UnicapgtkVideoDisplay *ugtk = UNICAPGTK_VIDEO_DISPLAY( object );
/* g_object_unref( ugtk->gc ); */
if( ugtk->capture_running )
{
unicapgtk_video_display_stop( ugtk );
}
if( ugtk->unicap_handle )
{
unicap_close( ugtk->unicap_handle );
ugtk->unicap_handle = NULL;
}
if( ugtk->backend )
{
ugtk->backend_destroy( ugtk->backend_data );
ugtk->backend = NULL;
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
int main( int argc, char **argv )
{
unicap_handle_t handle;
unicap_device_t device;
unicap_device_t device_spec;
unicap_property_t property;
unicap_property_t property_spec;
int list_only = 0;
int get_property = 0;
int value_set = 0;
int i;
int c = 0;
unicap_void_device( &device_spec );
unicap_void_property( &property );
while( c != -1 )
{
c = getopt( argc, argv, "gp:M:v:m:l" );
switch( c )
{
case 'p':
if( optarg )
{
strcpy( property.identifier, optarg );
}
break;
case 'M':
if( optarg )
{
printf( "Model: %s\n", optarg );
strcpy( device_spec.model_name, optarg );
}
else
{
print_usage( argv[0] );
exit( 1 );
}
break;
case 'v':
if( optarg )
{
sscanf( optarg, "%f", &property_spec.value );
value_set = 1;
}
else
{
print_usage( argv[0] );
exit( 1 );
}
break;
case 'm':
if( optarg )
{
strcpy( property.menu_item, optarg );
}
else
{
print_usage( argv[0] );
exit( 1 );
}
break;
case 'l':
list_only = 1;
break;
case 'g':
get_property = 1;
break;
case -1:
printf( "optind: %d\n", optind );
break;
default:
print_usage( argv[0] );
exit( 1 );
break;
}
}
//
// Enumerate all video capture devices; if more than 1 device present, ask for which device to open
//
for( i = 0; SUCCESS( unicap_enumerate_devices( &device_spec, &device, i ) ); i++ )
{
printf( "%i: %s\n", i, device.identifier );
}
if( --i > 0 )
{
printf( "Select video capture device: " );
scanf( "%d", &i );
}
if( !SUCCESS( unicap_enumerate_devices( NULL, &device, i ) ) )
{
fprintf( stderr, "Failed to get info for device '%s'\n", device.identifier );
exit( 1 );
}
/*
Acquire a handle to this device
*/
if( !SUCCESS( unicap_open( &handle, &device ) ) )
{
fprintf( stderr, "Failed to open device: %s\n", device.identifier );
exit( 1 );
}
printf( "Opened video capture device: %s\n", device.identifier );
// Initialize a property specifier structure
unicap_void_property( &property_spec );
strcpy( property_spec.identifier, property.identifier );
printf( "Supported properties: \n" );
printf( "\tName\t\tValue\n" );
//
// Print a list of all properties matching the specifier. For a "void" specifier, this matches all
// properties supported by the device
// If more than 1 property is supported, ask for which property to modify
for( i = 0; SUCCESS( unicap_enumerate_properties( handle, &property_spec, &property, i ) ); i++ )
{
unicap_get_property( handle, &property );
printf( "%i: \t%s\t\t", i, property.identifier );
switch( property.type )
{
case UNICAP_PROPERTY_TYPE_RANGE:
case UNICAP_PROPERTY_TYPE_VALUE_LIST:
printf( "%f", property.value );
break;
case UNICAP_PROPERTY_TYPE_MENU:
printf( "%s", property.menu_item );
break;
case UNICAP_PROPERTY_TYPE_FLAGS:
{
int j;
const char *flags[] =
{ "MANUAL",
"AUTO",
"ONE_PUSH",
"READ_OUT",
"ON_OFF",
"READ_ONLY",
"FORMAT_CHANGE"
};
for( j = 0; j < ( sizeof( flags ) / sizeof( char* ) ); j++ )
{
if( ( property.flags & ( 1<<j ) ) == ( 1<<j ) )
{
printf( "%s ",flags[j] );
}
}
}
break;
default:
break;
}
printf( "\n" );
}
if( --i > 1 )
{
printf( "Select a property to edit: " );
scanf( "%d", &i );
}
// Now get the description of the requested property. unicap_enumerate_property gives the
// property structure initialized to the default values. So just change the value of the
// returned property to the new one and set it using 'unicap_set_property'
if( !SUCCESS( unicap_enumerate_properties( handle, &property_spec, &property, i ) ) )
{
printf( "Failed to enumerate property\n" );
exit( -1 );
}
switch( property.type )
{
case UNICAP_PROPERTY_TYPE_RANGE:
case UNICAP_PROPERTY_TYPE_VALUE_LIST:
{
if( !value_set )
{
double new_value;
printf( "Enter new value for property '%s' ( floating point value ): ", property.identifier );
scanf( "%lf", &new_value );
property.value = new_value;
property.flags = UNICAP_FLAGS_MANUAL;
}
else
{
property.value = property_spec.value;
}
}
break;
case UNICAP_PROPERTY_TYPE_MENU:
{
printf( "Enter new value for property '%s' ( string ): ", property.identifier );
scanf( "%128s", property.menu_item );
}
break;
case UNICAP_PROPERTY_TYPE_FLAGS:
{
int i;
char buf[128];
char *str;
printf( "Enter new flags for property '%s' ( out of ", property.identifier );
for( i = 0; i < ( sizeof( property_flag_strings ) / sizeof( struct flag_string ) ); i++ )
{
if( property.flags_mask & property_flag_strings[i].flag )
{
printf( "%s ", property_flag_strings[i].name );
}
}
printf( "): " );
scanf( "%128s", buf );
str = strtok( buf, " " );
property.flags = 0;
while( str )
{
for( i = 0; i < ( sizeof( property_flag_strings ) / sizeof( struct flag_string ) ); i++ )
{
if( !strcmp( str, property_flag_strings[i].name ) )
{
property.flags |= property_flag_strings[i].flag;
break;
}
}
if( i == ( sizeof( property_flag_strings ) / sizeof( struct flag_string ) ) )
{
printf( "Unknown flag: %s\n", str );
break;
}
str = strtok( NULL, " " );
}
}
}
if( !get_property )
{
if( !SUCCESS( unicap_set_property( handle, &property ) ) )
{
printf( "Failed to set property!\n" );
}
}
else
{
char buffer[512];
int s = sizeof( buffer );
if( !SUCCESS( unicap_get_property( handle, &property ) ) )
{
printf( "Failed to set property!\n" );
}
unicap_describe_property( &property, buffer, &s );
printf( "%s\n", buffer );
}
unicap_close( handle );
return 0;
}
int main( int argc, char **argv )
{
unicap_handle_t handle;
unicap_device_t device;
unicap_format_t format_spec;
unicap_format_t format;
unicap_data_buffer_t buffer;
unicap_data_buffer_t *returned_buffer;
int i;
SDL_Surface *screen;
SDL_Overlay *overlay;
int quit=0;
/*
Enumerate available video capture devices
*/
printf( "select video device\n" );
for( i = 0; SUCCESS( unicap_enumerate_devices( NULL, &device, i ) ); i++ )
{
printf( "%i: %s\n", i, device.identifier );
}
if( --i > 0 )
{
printf( "Select video capture device: " );
scanf( "%d", &i );
}
if( !SUCCESS( unicap_enumerate_devices( NULL, &device, i ) ) )
{
fprintf( stderr, "Failed to get info for device '%s'\n", device.identifier );
exit( 1 );
}
/*
Acquire a handle to selected device
*/
if( !SUCCESS( unicap_open( &handle, &device ) ) )
{
fprintf( stderr, "Failed to open device: %s\n", device.identifier );
exit( 1 );
}
printf( "Opened video capture device: %s\n", device.identifier );
unicap_void_format( &format_spec );
/*
Get the list of video formats
*/
for( i = 0; SUCCESS( unicap_enumerate_formats( handle,
NULL,
&format, i ) );
i++ )
{
printf( "%d: %s\n",
i,
format.identifier );
}
if( --i > 0 )
{
printf( "Select video format: " );
scanf( "%d", &i );
}
if( !SUCCESS( unicap_enumerate_formats( handle, &format_spec, &format, i ) ) )
{
fprintf( stderr, "Failed to get video format %d\n", i );
exit( 1 );
}
/*
If a video format has more than one size, ask for which size to use
*/
if( format.size_count )
{
for( i = 0; i < format.size_count; i++ )
{
printf( "%d: %dx%d\n", i, format.sizes[i].width, format.sizes[i].height );
}
do
{
printf( "Select video format size: " );
scanf( "%d", &i );
}while( ( i < 0 ) && ( i > format.size_count ) );
format.size.width = format.sizes[i].width;
format.size.height = format.sizes[i].height;
}
/*
Set this video format
*/
if( !SUCCESS( unicap_set_format( handle, &format ) ) )
{
fprintf( stderr, "Failed to set video format\n" );
exit( 1 );
}
/*
Initialize the image buffer
*/
memset( &buffer, 0x0, sizeof( unicap_data_buffer_t ) );
/**
Init SDL & SDL_Overlay
**/
if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
{
fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
exit(1);
}
atexit(SDL_Quit);
screen = SDL_SetVideoMode( format.size.width, format.size.height, 32, SDL_HWSURFACE);
if ( screen == NULL ) {
fprintf(stderr, "Unable to set video mode: %s\n", SDL_GetError());
exit(1);
}
overlay = SDL_CreateYUVOverlay( format.size.width,
format.size.height,
format.fourcc,
screen );
if( overlay == NULL )
{
fprintf( stderr, "Unable to create overlay: %s\n", SDL_GetError() );
exit( 1 );
}
/*
Pass the pointer to the overlay to the unicap data buffer.
*/
buffer.data = overlay->pixels[0];
buffer.buffer_size = format.size.width * format.size.height * format.bpp / 8;
/*
Start the capture process on the device
*/
if( !SUCCESS( unicap_start_capture( handle ) ) )
{
fprintf( stderr, "Failed to start capture on device: %s\n", device.identifier );
exit( 1 );
}
while( !quit )
{
SDL_Rect rect;
SDL_Event event;
rect.x = rect.y = 0;
rect.w = format.size.width;
rect.h = format.size.height;
/*
Queue the buffer
The buffer now gets filled with image data by the capture device
*/
if( !SUCCESS( unicap_queue_buffer( handle, &buffer ) ) )
{
fprintf( stderr, "Failed to queue a buffer on device: %s\n", device.identifier );
exit( 1 );
}
/*
Wait until the image buffer is ready
*/
if( !SUCCESS( unicap_wait_buffer( handle, &returned_buffer ) ) )
{
fprintf( stderr, "Failed to wait for buffer on device: %s\n", device.identifier );
}
/*
Display the video data
*/
SDL_UnlockYUVOverlay( overlay );
SDL_DisplayYUVOverlay( overlay, &rect );
SDL_LockYUVOverlay(overlay);
while( SDL_PollEvent( &event ) )
{
if( event.type == SDL_QUIT )
{
printf( "Quit\n" );
quit=1;
}
}
}
/*
Stop the device
*/
if( !SUCCESS( unicap_stop_capture( handle ) ) )
{
fprintf( stderr, "Failed to stop capture on device: %s\n", device.identifier );
}
/*
Close the device
This invalidates the handle
*/
if( !SUCCESS( unicap_close( handle ) ) )
{
fprintf( stderr, "Failed to close the device: %s\n", device.identifier );
}
SDL_Quit();
return 0;
}
int main( int argc, char **argv )
{
unicap_handle_t handle;
unicap_device_t device;
unicap_format_t format_spec;
unicap_format_t format;
unicap_data_buffer_t buffer;
unicap_data_buffer_t *returned_buffer;
int width, height;
int i;
SDL_Surface *screen;
SDL_Overlay *overlay;
int quit=0;
int imgcnt = 0;
printf( "select video device\n" );
for( i = 0; SUCCESS( unicap_enumerate_devices( NULL, &device, i ) ); i++ )
{
printf( "%i: %s\n", i, device.identifier );
}
if( --i > 0 )
{
printf( "Select video capture device: " );
scanf( "%d", &i );
}
if( !SUCCESS( unicap_enumerate_devices( NULL, &device, i ) ) )
{
fprintf( stderr, "Failed to get info for device '%s'\n", device.identifier );
exit( 1 );
}
/*
Acquire a handle to this device
*/
if( !SUCCESS( unicap_open( &handle, &device ) ) )
{
fprintf( stderr, "Failed to open device: %s\n", device.identifier );
exit( 1 );
}
printf( "Opened video capture device: %s\n", device.identifier );
/*
Create a format specification to limit the list of formats returned by
unicap_enumerate_formats to the ones with the color format 'UYVY'
*/
unicap_void_format( &format_spec );
format_spec.fourcc = FOURCC('U','Y','V','Y');
/*
Get the list of video formats of the colorformat UYVY
*/
for( i = 0; SUCCESS( unicap_enumerate_formats( handle, &format_spec, &format, i ) ); i++ )
{
printf( "%d: %s [%dx%d]\n",
i,
format.identifier,
format.size.width,
format.size.height );
}
if( --i > 0 )
{
printf( "Select video format: " );
scanf( "%d", &i );
}
if( !SUCCESS( unicap_enumerate_formats( handle, &format_spec, &format, i ) ) )
{
fprintf( stderr, "Failed to get video format\n" );
exit( 1 );
}
/*
If a video format has more than one size, ask for which size to use
*/
if( format.size_count )
{
for( i = 0; i < format.size_count; i++ )
{
printf( "%d: %dx%d\n", i, format.sizes[i].width, format.sizes[i].height );
}
do
{
printf( "Select video format size: " );
scanf( "%d", &i );
}while( ( i < 0 ) && ( i > format.size_count ) );
format.size.width = format.sizes[i].width;
format.size.height = format.sizes[i].height;
}
/*
Set this video format
*/
if( !SUCCESS( unicap_set_format( handle, &format ) ) )
{
fprintf( stderr, "Failed to set video format\n" );
exit( 1 );
}
/*
Initialize the image buffer
*/
memset( &buffer, 0x0, sizeof( unicap_data_buffer_t ) );
/**
Init SDL & SDL_Overlay
**/
if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
{
fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
exit(1);
}
atexit(SDL_Quit);
/*
Make sure the video window does not get too big.
*/
width = MIN( format.size.width, 800 );
height = MIN( format.size.height, 600 );
screen = SDL_SetVideoMode( width, height, 32, SDL_HWSURFACE);
if ( screen == NULL ) {
fprintf(stderr, "Unable to set video mode: %s\n", SDL_GetError());
exit(1);
}
overlay = SDL_CreateYUVOverlay( format.size.width,
format.size.height, SDL_UYVY_OVERLAY, screen );
if( overlay == NULL )
{
fprintf( stderr, "Unable to create overlay: %s\n", SDL_GetError() );
exit( 1 );
}
/*
Pass the pointer to the overlay to the unicap data buffer.
*/
buffer.data = overlay->pixels[0];
buffer.buffer_size = format.size.width * format.size.height * format.bpp / 8;
/*
Start the capture process on the device
*/
if( !SUCCESS( unicap_start_capture( handle ) ) )
{
fprintf( stderr, "Failed to start capture on device: %s\n", device.identifier );
exit( 1 );
}
while( !quit )
{
SDL_Rect rect;
SDL_Event event;
rect.x = 0;
rect.y = 0;
rect.w = width;
rect.h = height;
/*
Queue the buffer
The buffer now gets filled with image data by the capture device
*/
if( !SUCCESS( unicap_queue_buffer( handle, &buffer ) ) )
{
fprintf( stderr, "Failed to queue a buffer on device: %s\n", device.identifier );
exit( 1 );
}
/*
Wait until the image buffer is ready
*/
if( !SUCCESS( unicap_wait_buffer( handle, &returned_buffer ) ) )
{
fprintf( stderr, "Failed to wait for buffer on device: %s\n", device.identifier );
}
/*
Display the video data
*/
SDL_UnlockYUVOverlay( overlay );
SDL_DisplayYUVOverlay( overlay, &rect );
while( SDL_PollEvent( &event ) )
{
switch( event.type )
{
case SDL_QUIT:
quit = 1;
break;
case SDL_MOUSEBUTTONDOWN:
{
unsigned char *pixels;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
FILE *outfile;
JSAMPROW row_pointer[1];
int row_stride;
char filename[128];
struct timeval t1, t2;
unsigned long long usecs;
sprintf( filename, "%04d.jpg", imgcnt++ );
cinfo.err = jpeg_std_error(&jerr);
/* Now we can initialize the JPEG compression object. */
jpeg_create_compress(&cinfo);
if ((outfile = fopen( filename, "wb" ) ) == NULL )
{
fprintf(stderr, "can't open %s\n", "file");
exit(1);
}
jpeg_stdio_dest(&cinfo, outfile);
cinfo.image_width = format.size.width; /* image width and height, in pixels */
cinfo.image_height = format.size.height;
cinfo.input_components = 3; /* # of color components per pixel */
cinfo.in_color_space = JCS_RGB; /* colorspace of input image */
jpeg_set_defaults(&cinfo);
pixels = malloc( format.size.width * format.size.height * 3 );
uyvy2rgb24( pixels, returned_buffer->data,
format.size.width * format.size.height * 3,
format.size.width * format.size.height * 2 );
gettimeofday( &t1, NULL );
jpeg_start_compress(&cinfo, TRUE);
while( cinfo.next_scanline < cinfo.image_height )
{
row_pointer[0] = &pixels[cinfo.next_scanline * format.size.width * 3 ];
(void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
}
jpeg_finish_compress(&cinfo);
gettimeofday( &t2, NULL );
usecs = t2.tv_sec * 1000000LL + t2.tv_usec;
usecs -= ( t1.tv_sec * 1000000LL + t1.tv_usec );
printf( "Compression took: %lld usec\n", usecs );
/* After finish_compress, we can close the output file. */
fclose(outfile);
jpeg_destroy_compress(&cinfo);
free( pixels );
}
break;
default:
break;
}
}
SDL_LockYUVOverlay(overlay);
}
/*
Stop the device
*/
if( !SUCCESS( unicap_stop_capture( handle ) ) )
{
fprintf( stderr, "Failed to stop capture on device: %s\n", device.identifier );
}
/*
Close the device
This invalidates the handle
*/
if( !SUCCESS( unicap_close( handle ) ) )
{
fprintf( stderr, "Failed to close the device: %s\n", device.identifier );
}
SDL_Quit();
return 0;
}