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added some property setting and getting

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This commit is contained in:
Ilya Lavrenov 2015-08-16 21:25:36 +03:00
parent c19ed39a78
commit 75fcedf0ed
1 changed files with 43 additions and 7 deletions
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50
modules/highgui/src/cap_gstreamer.cpp
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@ -145,6 +145,7 @@ protected:
gpointer data); gpointer data);
GstElement* pipeline; GstElement* pipeline;
GstElement* uridecodebin; GstElement* uridecodebin;
GstElement* v4l2src;
GstElement* color; GstElement* color;
GstElement* sink; GstElement* sink;
#if GST_VERSION_MAJOR > 0 #if GST_VERSION_MAJOR > 0
@ -168,6 +169,7 @@ void CvCapture_GStreamer::init()
{ {
pipeline = NULL; pipeline = NULL;
uridecodebin = NULL; uridecodebin = NULL;
v4l2src = NULL;
color = NULL; color = NULL;
sink = NULL; sink = NULL;
#if GST_VERSION_MAJOR > 0 #if GST_VERSION_MAJOR > 0
@ -707,14 +709,18 @@ bool CvCapture_GStreamer::open( int type, const char* filename )
if (strstr(name, "opencvsink") != NULL || strstr(name, "appsink") != NULL) if (strstr(name, "opencvsink") != NULL || strstr(name, "appsink") != NULL)
{ {
sink = GST_ELEMENT ( gst_object_ref (element) ); sink = GST_ELEMENT ( gst_object_ref (element) );
done = sink && color;
} }
else if (strstr(name, COLOR_ELEM_NAME) != NULL) else if (strstr(name, COLOR_ELEM_NAME) != NULL)
{ {
color = GST_ELEMENT ( gst_object_ref (element) ); color = GST_ELEMENT ( gst_object_ref (element) );
done = sink && color; }
else if (strstr(name, "v4l") != NULL)
{
v4l2src = GST_ELEMENT ( gst_object_ref (element) );
} }
g_free(name); g_free(name);
done = sink && color && v4l2src;
} }
#if GST_VERSION_MAJOR > 0 #if GST_VERSION_MAJOR > 0
g_value_unset (&value); g_value_unset (&value);
@ -884,7 +890,7 @@ double CvCapture_GStreamer::getProperty( int propId )
if(!pipeline) { if(!pipeline) {
CV_WARN("GStreamer: no pipeline"); CV_WARN("GStreamer: no pipeline");
return false; return 0;
} }
switch(propId) { switch(propId) {
@ -893,7 +899,7 @@ double CvCapture_GStreamer::getProperty( int propId )
status = gst_element_query_position(sink, FORMAT, &value); status = gst_element_query_position(sink, FORMAT, &value);
if(!status) { if(!status) {
CV_WARN("GStreamer: unable to query position of stream"); CV_WARN("GStreamer: unable to query position of stream");
return false; return 0;
} }
return value * 1e-6; // nano seconds to milli seconds return value * 1e-6; // nano seconds to milli seconds
case CV_CAP_PROP_POS_FRAMES: case CV_CAP_PROP_POS_FRAMES:
@ -901,7 +907,7 @@ double CvCapture_GStreamer::getProperty( int propId )
status = gst_element_query_position(sink, FORMAT, &value); status = gst_element_query_position(sink, FORMAT, &value);
if(!status) { if(!status) {
CV_WARN("GStreamer: unable to query position of stream"); CV_WARN("GStreamer: unable to query position of stream");
return false; return 0;
} }
return value; return value;
case CV_CAP_PROP_POS_AVI_RATIO: case CV_CAP_PROP_POS_AVI_RATIO:
@ -909,7 +915,7 @@ double CvCapture_GStreamer::getProperty( int propId )
status = gst_element_query_position(sink, FORMAT, &value); status = gst_element_query_position(sink, FORMAT, &value);
if(!status) { if(!status) {
CV_WARN("GStreamer: unable to query position of stream"); CV_WARN("GStreamer: unable to query position of stream");
return false; return 0;
} }
return ((double) value) / GST_FORMAT_PERCENT_MAX; return ((double) value) / GST_FORMAT_PERCENT_MAX;
case CV_CAP_PROP_FRAME_WIDTH: case CV_CAP_PROP_FRAME_WIDTH:
@ -928,6 +934,21 @@ double CvCapture_GStreamer::getProperty( int propId )
case CV_CAP_PROP_CONTRAST: case CV_CAP_PROP_CONTRAST:
case CV_CAP_PROP_SATURATION: case CV_CAP_PROP_SATURATION:
case CV_CAP_PROP_HUE: case CV_CAP_PROP_HUE:
if (v4l2src)
{
const gchar * propName =
propId == CV_CAP_PROP_BRIGHTNESS ? "brightness" :
propId == CV_CAP_PROP_CONTRAST ? "contrast" :
propId == CV_CAP_PROP_SATURATION ? "saturation" :
propId == CV_CAP_PROP_HUE ? "hue" : NULL;
if (propName)
{
gint32 value32 = 0;
g_object_get(G_OBJECT(v4l2src), propName, &value32, NULL);
return value32;
}
}
case CV_CAP_PROP_GAIN: case CV_CAP_PROP_GAIN:
case CV_CAP_PROP_CONVERT_RGB: case CV_CAP_PROP_CONVERT_RGB:
break; break;
@ -944,7 +965,7 @@ double CvCapture_GStreamer::getProperty( int propId )
#undef FORMAT #undef FORMAT
return false; return 0;
} }
/*! /*!
@ -1023,6 +1044,21 @@ bool CvCapture_GStreamer::setProperty( int propId, double value )
case CV_CAP_PROP_CONTRAST: case CV_CAP_PROP_CONTRAST:
case CV_CAP_PROP_SATURATION: case CV_CAP_PROP_SATURATION:
case CV_CAP_PROP_HUE: case CV_CAP_PROP_HUE:
if (v4l2src)
{
const gchar * propName =
propId == CV_CAP_PROP_BRIGHTNESS ? "brightness" :
propId == CV_CAP_PROP_CONTRAST ? "contrast" :
propId == CV_CAP_PROP_SATURATION ? "saturation" :
propId == CV_CAP_PROP_HUE ? "hue" : NULL;
if (propName)
{
gint32 value32 = cv::saturate_cast<gint32>(value);
g_object_set(G_OBJECT(v4l2src), propName, &value32, NULL);
return true;
}
}
case CV_CAP_PROP_GAIN: case CV_CAP_PROP_GAIN:
case CV_CAP_PROP_CONVERT_RGB: case CV_CAP_PROP_CONVERT_RGB:
break; break;