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rpicamsrc: deviceprovider: check if camera is detected and supported

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This commit is contained in:
Tim-Philipp Müller 2014-10-30 00:45:18 +00:00
parent 8e9c8663f8
commit 27c35a8ff3
3 changed files with 18 additions and 3 deletions
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2
sys/rpicamsrc/RaspiCamControl.c
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@ -1094,7 +1094,7 @@ static int raspicamcontrol_get_mem_gpu(void)
* @param supported None-zero if software supports the camera
* @param detected None-zero if a camera has been detected
*/
static void raspicamcontrol_get_camera(int *supported, int *detected)
void raspicamcontrol_get_camera(int *supported, int *detected)
{
char response[80] = "";
if (vc_gencmd(response, sizeof response, "get_camera") == 0)

1
sys/rpicamsrc/RaspiCamControl.h
View file

@ -147,6 +147,7 @@ void raspicamcontrol_dump_parameters(const RASPICAM_CAMERA_PARAMETERS *params);
void raspicamcontrol_set_defaults(RASPICAM_CAMERA_PARAMETERS *params);
void raspicamcontrol_check_configuration(int min_gpu_mem);
void raspicamcontrol_get_camera(int *supported, int *detected);
// Individual setting functions
int raspicamcontrol_set_saturation(MMAL_COMPONENT_T *camera, int saturation);

18
sys/rpicamsrc/gstrpicamsrcdeviceprovider.c
View file

@ -27,6 +27,8 @@
#if GST_CHECK_VERSION (1,4,0)
#include "RaspiCapture.h"
/* FIXME: translations */
#define _(s) s
@ -54,15 +56,27 @@ gst_rpi_cam_src_device_provider_class_init (GstRpiCamSrcDeviceProviderClass * kl
static void
gst_rpi_cam_src_device_provider_init (GstRpiCamSrcDeviceProvider * provider)
{
/* nothing to do here yet */
raspicapture_init ();
}
static GList *
gst_rpi_cam_src_device_provider_probe (GstDeviceProvider * provider)
{
GstRpiCamSrcDevice *device;
int supported = 0, detected = 0;
raspicamcontrol_get_camera (&supported, &detected);
if (!detected) {
GST_INFO ("No Raspberry Pi camera module detected.");
return NULL;
} else if (!supported) {
GST_WARNING ("Raspberry Pi camera module not supported, make sure to enable it.");
return NULL;
}
GST_INFO ("Raspberry Pi camera module detected and supported.");
/* FIXME: check if camera module is usable and supported */
device = gst_rpi_cam_src_device_new ();
return g_list_append (NULL, device);