static PyObject*
symbol_get_long (zbarSymbol *self,
void *closure)
{
int val;
if(!closure)
val = zbar_symbol_get_quality(self->zsym);
else
val = zbar_symbol_get_count(self->zsym);
return(PyInt_FromLong(val));
}
static inline int zbar_gtk_process_image (ZBarGtk *self,
zbar_image_t *image)
{
ZBarGtkPrivate *zbar = ZBAR_GTK_PRIVATE(self->_private);
if(!image)
return(-1);
zbar_image_t *tmp = zbar_image_convert(image, fourcc('Y','8','0','0'));
if(!tmp)
return(-1);
zbar_image_scanner_recycle_image(zbar->scanner, image);
int rc = zbar_scan_image(zbar->scanner, tmp);
zbar_image_set_symbols(image, zbar_image_get_symbols(tmp));
zbar_image_destroy(tmp);
if(rc < 0)
return(rc);
gdk_threads_enter();
if(rc && zbar->thread) {
/* update decode results */
const zbar_symbol_t *sym;
for(sym = zbar_image_first_symbol(image);
sym;
sym = zbar_symbol_next(sym))
if(!zbar_symbol_get_count(sym)) {
zbar_symbol_type_t type = zbar_symbol_get_type(sym);
const char *data = zbar_symbol_get_data(sym);
g_signal_emit(self, zbar_gtk_signals[DECODED], 0,
type, data);
/* FIXME skip this when unconnected? */
gchar *text = g_strconcat(zbar_get_symbol_name(type),
zbar_get_addon_name(type),
":",
data,
NULL);
g_signal_emit(self, zbar_gtk_signals[DECODED_TEXT], 0, text);
g_free(text);
}
}
if(zbar->window) {
rc = zbar_window_draw(zbar->window, image);
gtk_widget_queue_draw(GTK_WIDGET(self));
}
else
rc = -1;
gdk_threads_leave();
return(rc);
}
static void data_handler (zbar_image_t *img, const void *userdata)
{
const zbar_symbol_t *sym = zbar_image_first_symbol(img);
assert(sym);
int n = 0;
for(; sym; sym = zbar_symbol_next(sym)) {
if(zbar_symbol_get_count(sym))
continue;
zbar_symbol_type_t type = zbar_symbol_get_type(sym);
if(type == ZBAR_PARTIAL)
continue;
if(!format) {
printf("%s:", zbar_get_symbol_name(type));
if(fwrite(zbar_symbol_get_data(sym),
zbar_symbol_get_data_length(sym),
1, stdout) != 1)
continue;
}
else if(format == RAW) {
if(fwrite(zbar_symbol_get_data(sym),
zbar_symbol_get_data_length(sym),
1, stdout) != 1)
continue;
}
else if(format == XML) {
if(!n)
printf("<index num='%u'>\n", zbar_image_get_sequence(img));
zbar_symbol_xml(sym, &xml_buf, &xml_len);
if(fwrite(xml_buf, xml_len, 1, stdout) != 1)
continue;
}
printf("\n");
n++;
}
if(format == XML && n)
printf("</index>\n");
fflush(stdout);
if(!quiet && n)
fprintf(stderr, BELL);
}
JNIEXPORT jint JNICALL
Java_net_sourceforge_zbar_Symbol_getCount (JNIEnv *env,
jobject obj)
{
return(zbar_symbol_get_count(GET_PEER(Symbol, obj)));
}
static GstFlowReturn
gst_zbar_transform_frame_ip (GstVideoFilter * vfilter, GstVideoFrame * frame)
{
GstZBar *zbar = GST_ZBAR (vfilter);
gpointer data;
gint stride, height;
zbar_image_t *image;
const zbar_symbol_t *symbol;
int n;
image = zbar_image_create ();
/* all formats we support start with an 8-bit Y plane. zbar doesn't need
* to know about the chroma plane(s) */
data = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
height = GST_VIDEO_FRAME_HEIGHT (frame);
zbar_image_set_format (image, GST_MAKE_FOURCC ('Y', '8', '0', '0'));
zbar_image_set_size (image, stride, height);
zbar_image_set_data (image, (gpointer) data, stride * height, NULL);
/* scan the image for barcodes */
n = zbar_scan_image (zbar->scanner, image);
if (n == 0)
goto out;
/* extract results */
symbol = zbar_image_first_symbol (image);
for (; symbol; symbol = zbar_symbol_next (symbol)) {
zbar_symbol_type_t typ = zbar_symbol_get_type (symbol);
const char *data = zbar_symbol_get_data (symbol);
gint quality = zbar_symbol_get_quality (symbol);
GST_DEBUG_OBJECT (zbar, "decoded %s symbol \"%s\" at quality %d",
zbar_get_symbol_name (typ), data, quality);
if (zbar->cache && zbar_symbol_get_count (symbol) != 0)
continue;
if (zbar->message) {
GstMessage *m;
GstStructure *s;
/* post a message */
s = gst_structure_new ("barcode",
"timestamp", G_TYPE_UINT64, GST_BUFFER_TIMESTAMP (frame->buffer),
"type", G_TYPE_STRING, zbar_get_symbol_name (typ),
"symbol", G_TYPE_STRING, data, "quality", G_TYPE_INT, quality, NULL);
m = gst_message_new_element (GST_OBJECT (zbar), s);
gst_element_post_message (GST_ELEMENT (zbar), m);
}
}
out:
/* clean up */
zbar_image_scanner_recycle_image (zbar->scanner, image);
zbar_image_destroy (image);
return GST_FLOW_OK;
}
/* API lock is already held */
int _zbar_process_image (zbar_processor_t *proc,
zbar_image_t *img)
{
uint32_t force_fmt = proc->force_output;
int nsyms, rc;
if(img) {
zbar_image_t *tmp;
uint32_t format = zbar_image_get_format(img);
zprintf(16, "processing: %.4s(%08lx) %dx%d @%p\n",
(char*)&format, format,
zbar_image_get_width(img), zbar_image_get_height(img),
zbar_image_get_data(img));
/* FIXME locking all other interfaces while processing is conservative
* but easier for now and we don't expect this to take long...
*/
tmp = zbar_image_convert(img, fourcc('Y','8','0','0'));
if(!tmp)
goto error;
if(proc->syms) {
zbar_symbol_set_ref(proc->syms, -1);
proc->syms = NULL;
}
zbar_image_scanner_recycle_image(proc->scanner, img);
nsyms = zbar_scan_image(proc->scanner, tmp);
_zbar_image_swap_symbols(img, tmp);
zbar_image_destroy(tmp);
tmp = NULL;
if(nsyms < 0)
goto error;
proc->syms = zbar_image_scanner_get_results(proc->scanner);
if(proc->syms)
zbar_symbol_set_ref(proc->syms, 1);
if(_zbar_verbosity >= 8) {
const zbar_symbol_t *sym = zbar_image_first_symbol(img);
while(sym) {
zbar_symbol_type_t type = zbar_symbol_get_type(sym);
int count = zbar_symbol_get_count(sym);
zprintf(8, "%s%s: %s (%d pts) (q=%d) (%s)\n",
zbar_get_symbol_name(type),
zbar_get_addon_name(type),
zbar_symbol_get_data(sym),
zbar_symbol_get_loc_size(sym),
zbar_symbol_get_quality(sym),
(count < 0) ? "uncertain" :
(count > 0) ? "duplicate" : "new");
sym = zbar_symbol_next(sym);
}
}
if(nsyms) {
/* FIXME only call after filtering */
_zbar_mutex_lock(&proc->mutex);
_zbar_processor_notify(proc, EVENT_OUTPUT);
_zbar_mutex_unlock(&proc->mutex);
if(proc->handler)
proc->handler(img, proc->userdata);
}
if(force_fmt) {
zbar_symbol_set_t *syms = img->syms;
img = zbar_image_convert(img, force_fmt);
if(!img)
goto error;
img->syms = syms;
zbar_symbol_set_ref(syms, 1);
}
}
/* display to window if enabled */
rc = 0;
if(force_fmt && img)
zbar_image_destroy(img);
return(rc);
error:
return(err_capture(proc, SEV_ERROR, ZBAR_ERR_UNSUPPORTED,
__func__, "unknown image format"));
}
static GstFlowReturn
gst_skor_sink_transform_frame_ip (GstVideoFilter * vfilter, GstVideoFrame * frame)
{
GstSkorSink *sink = GST_SKORSINK (vfilter);
gpointer data;
gint stride, height;
zbar_image_t *image;
const zbar_symbol_t *symbol;
int n;
image = zbar_image_create ();
/* all formats we support start with an 8-bit Y plane. zbar doesn't need
* to know about the chroma plane(s) */
data = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
height = GST_VIDEO_FRAME_HEIGHT (frame);
zbar_image_set_format (image, GST_MAKE_FOURCC ('Y', '8', '0', '0'));
zbar_image_set_size (image, stride, height);
zbar_image_set_data (image, (gpointer) data, stride * height, NULL);
/* scan the image for barcodes */
n = zbar_scan_image (sink->scanner, image);
if (G_UNLIKELY (n == -1)) {
GST_WARNING_OBJECT (sink, "Error trying to scan frame. Skipping");
goto out;
}
if (n == 0)
goto out;
/* extract results */
symbol = zbar_image_first_symbol (image);
for (; symbol; symbol = zbar_symbol_next (symbol)) {
zbar_symbol_type_t typ = zbar_symbol_get_type (symbol);
const char *data = zbar_symbol_get_data (symbol);
gint quality = zbar_symbol_get_quality (symbol);
GST_DEBUG_OBJECT (sink, "decoded %s symbol \"%s\" at quality %d",
zbar_get_symbol_name (typ), data, quality);
if (sink->cache && zbar_symbol_get_count (symbol) != 0)
continue;
if (sink->data_consumer)
sink->data_consumer (data);
if (sink->message) {
GstMessage *m;
GstStructure *s;
GstSample *sample;
GstCaps *sample_caps;
s = gst_structure_new ("barcode",
"timestamp", G_TYPE_UINT64, GST_BUFFER_TIMESTAMP (frame->buffer),
"type", G_TYPE_STRING, zbar_get_symbol_name (typ),
"symbol", G_TYPE_STRING, data, "quality", G_TYPE_INT, quality, NULL);
if (sink->attach_frame) {
/* create a sample from image */
sample_caps = gst_video_info_to_caps (&frame->info);
sample = gst_sample_new (frame->buffer, sample_caps, NULL, NULL);
gst_caps_unref (sample_caps);
gst_structure_set (s, "frame", GST_TYPE_SAMPLE, sample, NULL);
gst_sample_unref (sample);
}
m = gst_message_new_element (GST_OBJECT (sink), s);
gst_element_post_message (GST_ELEMENT (sink), m);
} else if (sink->attach_frame)
GST_WARNING_OBJECT (sink,
"attach-frame=true has no effect if message=false");
}
out:
/* clean up */
zbar_image_scanner_recycle_image (sink->scanner, image);
zbar_image_destroy (image);
return GST_FLOW_OK;
}
