gstreamer/gst/camerabin2/gstwrappercamerabinsrc.h
Thiago Santos 9863feb328 camerabin2: Implement previewing
Implement previewing functionality using 2 properties. A boolean
(post-previews) that indicates if previews should be posted, and a
GstCaps (preview-caps) to provide the desired preview caps.

wrappercamerabinsrc implements previewing by supplying the captured
image to a pipeline to adapt it to the required caps before posting.
2011-01-24 14:50:29 -03:00

130 lines
3.6 KiB
C

/*
* GStreamer
* Copyright (C) 2010 Texas Instruments, Inc
* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
*
* 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_WRAPPER_CAMERA_BIN_SRC_H__
#define __GST_WRAPPER_CAMERA_BIN_SRC_H__
#include <gst/gst.h>
#include <gst/basecamerabinsrc/gstbasecamerasrc.h>
#include "camerabingeneral.h"
G_BEGIN_DECLS
#define GST_TYPE_WRAPPER_CAMERA_BIN_SRC \
(gst_wrapper_camera_bin_src_get_type())
#define GST_WRAPPER_CAMERA_BIN_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WRAPPER_CAMERA_BIN_SRC,GstWrapperCameraBinSrc))
#define GST_WRAPPER_CAMERA_BIN_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WRAPPER_CAMERA_BIN_SRC,GstWrapperCameraBinSrcClass))
#define GST_IS_WRAPPER_CAMERA_BIN_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WRAPPER_CAMERA_BIN_SRC))
#define GST_IS_WRAPPER_CAMERA_BIN_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WRAPPER_CAMERA_BIN_SRC))
GType gst_wrapper_camera_bin_src_get_type (void);
typedef struct _GstWrapperCameraBinSrc GstWrapperCameraBinSrc;
typedef struct _GstWrapperCameraBinSrcClass GstWrapperCameraBinSrcClass;
enum GstVideoRecordingStatus {
GST_VIDEO_RECORDING_STATUS_DONE,
GST_VIDEO_RECORDING_STATUS_STARTING,
GST_VIDEO_RECORDING_STATUS_RUNNING,
GST_VIDEO_RECORDING_STATUS_FINISHING
};
/**
* GstWrapperCameraBinSrc:
*
*/
struct _GstWrapperCameraBinSrc
{
GstBaseCameraSrc parent;
GstCameraBinMode mode;
GstPad *vfsrc;
GstPad *imgsrc;
GstPad *vidsrc;
/* video recording controls */
gint video_rec_status;
/* image capture controls */
gint image_capture_count;
/* source elements */
GstElement *src_vid_src;
GstElement *src_filter;
GstElement *src_zoom_crop;
GstElement *src_zoom_scale;
GstElement *src_zoom_filter;
GstElement *output_selector;
gboolean elements_created;
guint src_event_probe_id;
GstPad *outsel_imgpad;
GstPad *outsel_vidpad;
GstPadEventFunction srcpad_event_func;
/* Application configurable elements */
GstElement *app_vid_src;
/* Caps that videosrc supports */
GstCaps *allowed_caps;
/* Optional base crop for frames. Used to crop frames e.g.
due to wrong aspect ratio, before the crop related to zooming. */
gint base_crop_top;
gint base_crop_bottom;
gint base_crop_left;
gint base_crop_right;
/* Caps applied to capsfilters when in view finder mode */
GstCaps *view_finder_caps;
/* Caps applied to capsfilters when taking still image */
GstCaps *image_capture_caps;
gboolean image_renegotiate;
gboolean video_renegotiate;
/* Preview convert pipeline */
GstCameraBinPreviewPipelineData *preview_pipeline;
gboolean post_previews;
GstCaps *preview_caps;
};
/**
* GstWrapperCameraBinSrcClass:
*
*/
struct _GstWrapperCameraBinSrcClass
{
GstBaseCameraSrcClass parent;
};
gboolean gst_wrapper_camera_bin_src_plugin_init (GstPlugin * plugin);
#endif /* __GST_WRAPPER_CAMERA_BIN_SRC_H__ */