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rpicamsrc: Basic orientation interface support

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The (h,v)flip attributes are now supported through this interface.
It should also be possible to support (h,v)center attributes using the
ROI properties.
This commit is contained in:
Philippe Normand 2015-05-11 11:16:52 +02:00 committed by Tim-Philipp Müller
parent 1a4870d13d
commit cda483cb3c
2 changed files with 147 additions and 1 deletions
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78
sys/rpicamsrc/gstrpicamsrc.c
View file

@ -188,6 +188,7 @@ static void gst_rpi_cam_src_finalize (GObject *object);
static void gst_rpi_cam_src_colorbalance_init (GstColorBalanceInterface *
iface);
static void gst_rpi_cam_src_orientation_init (GstVideoOrientationInterface * iface);
static void gst_rpi_cam_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -210,7 +211,9 @@ static gboolean gst_rpi_cam_src_send_event (GstElement * element,
G_DEFINE_TYPE_WITH_CODE (GstRpiCamSrc, gst_rpi_cam_src,
GST_TYPE_PUSH_SRC,
G_IMPLEMENT_INTERFACE (GST_TYPE_COLOR_BALANCE,
gst_rpi_cam_src_colorbalance_init));
gst_rpi_cam_src_colorbalance_init);
G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_ORIENTATION,
gst_rpi_cam_src_orientation_init));
#define C_ENUM(v) ((gint) v)
@ -583,6 +586,79 @@ gst_rpi_cam_src_colorbalance_init (GstColorBalanceInterface * iface)
iface->get_balance_type = gst_rpi_cam_src_colorbalance_get_balance_type;
}
static gboolean
gst_rpi_cam_src_orientation_get_hflip (GstVideoOrientation * orientation, gboolean * flip)
{
GstRpiCamSrc *src = GST_RPICAMSRC (orientation);
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_RPICAMSRC (src), FALSE);
g_mutex_lock (&src->config_lock);
*flip = src->capture_config.camera_parameters.hflip;
g_mutex_unlock (&src->config_lock);
return TRUE;
}
static gboolean
gst_rpi_cam_src_orientation_get_vflip (GstVideoOrientation * orientation, gboolean * flip)
{
GstRpiCamSrc *src = GST_RPICAMSRC (orientation);
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_RPICAMSRC (src), FALSE);
g_mutex_lock (&src->config_lock);
*flip = src->capture_config.camera_parameters.vflip;
g_mutex_unlock (&src->config_lock);
return TRUE;
}
static gboolean
gst_rpi_cam_src_orientation_set_hflip (GstVideoOrientation * orientation, gboolean flip)
{
GstRpiCamSrc *src = GST_RPICAMSRC (orientation);
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_RPICAMSRC (src), FALSE);
g_mutex_lock (&src->config_lock);
src->capture_config.camera_parameters.hflip = flip;
src->capture_config.change_flags |= PROP_CHANGE_ORIENTATION;
g_mutex_unlock (&src->config_lock);
return TRUE;
}
static gboolean
gst_rpi_cam_src_orientation_set_vflip (GstVideoOrientation * orientation, gboolean flip)
{
GstRpiCamSrc *src = GST_RPICAMSRC (orientation);
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_RPICAMSRC (src), FALSE);
g_mutex_lock (&src->config_lock);
src->capture_config.camera_parameters.vflip = flip;
src->capture_config.change_flags |= PROP_CHANGE_ORIENTATION;
g_mutex_unlock (&src->config_lock);
return TRUE;
}
static void
gst_rpi_cam_src_orientation_init (GstVideoOrientationInterface * iface)
{
iface->get_hflip = gst_rpi_cam_src_orientation_get_hflip;
iface->set_hflip = gst_rpi_cam_src_orientation_set_hflip;
iface->get_vflip = gst_rpi_cam_src_orientation_get_vflip;
iface->set_vflip = gst_rpi_cam_src_orientation_set_vflip;
/* TODO: hcenter / vcenter support */
}
static void
gst_rpi_cam_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)

70
tests/examples/rpicamsrc/test_orientation.c Normal file
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@ -0,0 +1,70 @@
/*
* Copyright (c) 2015, Igalia S.L
* Author: Philippe Normand <philn@igalia.com>
* Licence: LGPL. (See COPYING.LGPL)
*/
#include <glib.h>
#include <gst/gst.h>
#include <gst/video/videoorientation.h>
#define PIPELINE "rpicamsrc name=src preview=0 fullscreen=0 ! h264parse ! omxh264dec ! glimagesink sync=0"
void configure_orientation(GstVideoOrientation* orientation)
{
gboolean flip;
if (gst_video_orientation_get_hflip(orientation, &flip)) {
g_print("current hflip: %s\n", flip ? "enabled" : "disabled");
if (g_getenv("HFLIP"))
gst_video_orientation_set_hflip(orientation, TRUE);
gst_video_orientation_get_hflip(orientation, &flip);
g_print("new hflip: %s\n", flip ? "enabled" : "disabled");
}
if (gst_video_orientation_get_vflip(orientation, &flip)) {
g_print("current vflip: %s\n", flip ? "enabled" : "disabled");
if (g_getenv("VFLIP"))
gst_video_orientation_set_vflip(orientation, TRUE);
gst_video_orientation_get_vflip(orientation, &flip);
g_print("new vflip: %s\n", flip ? "enabled" : "disabled");
}
}
int main(int argc, char** argv)
{
GMainLoop* loop;
GstElement* pipeline;
GError* error = NULL;
GstElement* src;
GstVideoOrientation* orientation;
gst_init(&argc, &argv);
loop = g_main_loop_new(NULL, FALSE);
pipeline = gst_parse_launch(PIPELINE, &error);
if (error != NULL) {
g_printerr("Error parsing '%s': %s", PIPELINE, error->message);
g_error_free(error);
return -1;
}
gst_element_set_state(pipeline, GST_STATE_PLAYING);
src = gst_bin_get_by_name(GST_BIN(pipeline), "src");
if (!src) {
g_printerr("Source element not found\n");
return -2;
}
orientation = GST_VIDEO_ORIENTATION(src);
configure_orientation(orientation);
g_main_loop_run(loop);
gst_object_unref(src);
gst_element_set_state(pipeline, GST_STATE_NULL);
return 0;
}