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/*
* GStreamer
* Copyright (C) 2010 Texas Instruments, Inc
* Copyright (C) 2011 Thiago Santos <thiago.sousa.santos@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_BASE_CAMERA_SRC_H__
#define __GST_BASE_CAMERA_SRC_H__
#ifndef GST_USE_UNSTABLE_API
#warning "GstBaseCameraSrc is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/gst.h>
#include <gst/gstbin.h>
#include "gstcamerabin-enum.h"
#include "gstcamerabinpreview.h"
G_BEGIN_DECLS
#define GST_TYPE_BASE_CAMERA_SRC \
(gst_base_camera_src_get_type())
#define GST_BASE_CAMERA_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_CAMERA_SRC,GstBaseCameraSrc))
#define GST_BASE_CAMERA_SRC_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_CAMERA_SRC, GstBaseCameraSrcClass))
#define GST_BASE_CAMERA_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_CAMERA_SRC,GstBaseCameraSrcClass))
#define GST_IS_BASE_CAMERA_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_CAMERA_SRC))
#define GST_IS_BASE_CAMERA_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_CAMERA_SRC))
#define GST_BASE_CAMERA_SRC_CAST(obj) \
((GstBaseCameraSrc *) (obj))
GType gst_base_camera_src_get_type (void);
typedef struct _GstBaseCameraSrc GstBaseCameraSrc;
typedef struct _GstBaseCameraSrcClass GstBaseCameraSrcClass;
#define GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME "vfsrc"
#define GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME "imgsrc"
#define GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME "vidsrc"
#define GST_BASE_CAMERA_SRC_PREVIEW_MESSAGE_NAME "preview-image"
/**
* GstBaseCameraSrc:
*/
struct _GstBaseCameraSrc
{
GstBin parent;
GstCameraBinMode mode;
gboolean capturing;
GMutex capturing_mutex;
/* Preview convert pipeline */
GstCaps *preview_caps;
gboolean post_preview;
GstElement *preview_filter;
GstCameraBinPreviewPipelineData *preview_pipeline;
/* Resolution of the buffers configured to camerabin */
gint width;
gint height;
gfloat zoom;
gfloat max_zoom;
gpointer _gst_reserved[GST_PADDING_LARGE];
};
/**
* GstBaseCameraSrcClass:
* @construct_pipeline: construct pipeline
* @setup_pipeline: configure pipeline for the chosen settings
* @set_zoom: set the zoom
* @set_mode: set the mode
*/
struct _GstBaseCameraSrcClass
{
GstBinClass parent;
/* Construct pipeline. (called in GST_STATE_CHANGE_NULL_TO_READY) Optional. */
gboolean (*construct_pipeline) (GstBaseCameraSrc *self);
/* (called in GST_STATE_CHANGE_READY_TO_PAUSED). Optional. */
gboolean (*setup_pipeline) (GstBaseCameraSrc *self);
/* Set the zoom. If set, called when changing 'zoom' property. Optional. */
void (*set_zoom) (GstBaseCameraSrc *self, gfloat zoom);
/* Set the mode. If set, called when changing 'mode' property. Optional. */
gboolean (*set_mode) (GstBaseCameraSrc *self,
GstCameraBinMode mode);
/* Set preview caps. If set, called called when setting new 'preview-caps'. Optional. */
gboolean (*set_preview) (GstBaseCameraSrc *self,
GstCaps *preview_caps);
/* Called by the handler for 'start-capture'. Mandatory. */
gboolean (*start_capture) (GstBaseCameraSrc * src);
/* Called by the handler for 'stop-capture'. Mandatory. */
void (*stop_capture) (GstBaseCameraSrc * src);
gpointer _gst_reserved[GST_PADDING_LARGE];
};
#define MIN_ZOOM 1.0f
#define MAX_ZOOM 10.0f
#define ZOOM_1X MIN_ZOOM
gboolean gst_base_camera_src_set_mode (GstBaseCameraSrc *self, GstCameraBinMode mode);
void gst_base_camera_src_setup_zoom (GstBaseCameraSrc * self);
void gst_base_camera_src_setup_preview (GstBaseCameraSrc * self, GstCaps * preview_caps);
void gst_base_camera_src_finish_capture (GstBaseCameraSrc *self);
void gst_base_camera_src_post_preview (GstBaseCameraSrc *self, GstSample * sample);
// XXX add methods to get/set img capture and vid capture caps..
#endif /* __GST_BASE_CAMERA_SRC_H__ */
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