mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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0a831613a8
need to pass a GstSample to the utilitary preview buffer post functions as a GstBuffer doesn't have caps anymore. The GstSample has the GstCaps and it is used to inform the preview's pipeline about the format of the input, before it gets converted to the user's requested output format.
142 lines
4.7 KiB
C
142 lines
4.7 KiB
C
/*
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* GStreamer
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* Copyright (C) 2010 Texas Instruments, Inc
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* Copyright (C) 2011 Thiago Santos <thiago.sousa.santos@collabora.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_BASE_CAMERA_SRC_H__
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#define __GST_BASE_CAMERA_SRC_H__
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#ifndef GST_USE_UNSTABLE_API
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#warning "GstBaseCameraSrc is unstable API and may change in future."
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#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
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#endif
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#include <gst/gst.h>
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#include <gst/gstbin.h>
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#include "gstcamerabin-enum.h"
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#include "gstcamerabinpreview.h"
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G_BEGIN_DECLS
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#define GST_TYPE_BASE_CAMERA_SRC \
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(gst_base_camera_src_get_type())
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#define GST_BASE_CAMERA_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_CAMERA_SRC,GstBaseCameraSrc))
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#define GST_BASE_CAMERA_SRC_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_CAMERA_SRC, GstBaseCameraSrcClass))
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#define GST_BASE_CAMERA_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_CAMERA_SRC,GstBaseCameraSrcClass))
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#define GST_IS_BASE_CAMERA_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_CAMERA_SRC))
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#define GST_IS_BASE_CAMERA_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_CAMERA_SRC))
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#define GST_BASE_CAMERA_SRC_CAST(obj) \
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((GstBaseCameraSrc *) (obj))
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GType gst_base_camera_src_get_type (void);
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typedef struct _GstBaseCameraSrc GstBaseCameraSrc;
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typedef struct _GstBaseCameraSrcClass GstBaseCameraSrcClass;
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#define GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME "vfsrc"
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#define GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME "imgsrc"
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#define GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME "vidsrc"
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#define GST_BASE_CAMERA_SRC_PREVIEW_MESSAGE_NAME "preview-image"
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/**
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* GstBaseCameraSrc:
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*/
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struct _GstBaseCameraSrc
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{
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GstBin parent;
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GstCameraBinMode mode;
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gboolean capturing;
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GMutex capturing_mutex;
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/* Preview convert pipeline */
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GstCaps *preview_caps;
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gboolean post_preview;
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GstElement *preview_filter;
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GstCameraBinPreviewPipelineData *preview_pipeline;
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/* Resolution of the buffers configured to camerabin */
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gint width;
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gint height;
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gfloat zoom;
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gfloat max_zoom;
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gpointer _gst_reserved[GST_PADDING_LARGE];
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};
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/**
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* GstBaseCameraSrcClass:
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* @construct_pipeline: construct pipeline
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* @setup_pipeline: configure pipeline for the chosen settings
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* @set_zoom: set the zoom
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* @set_mode: set the mode
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*/
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struct _GstBaseCameraSrcClass
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{
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GstBinClass parent;
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/* Construct pipeline. (called in GST_STATE_CHANGE_NULL_TO_READY) Optional. */
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gboolean (*construct_pipeline) (GstBaseCameraSrc *self);
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/* (called in GST_STATE_CHANGE_READY_TO_PAUSED). Optional. */
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gboolean (*setup_pipeline) (GstBaseCameraSrc *self);
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/* Set the zoom. If set, called when changing 'zoom' property. Optional. */
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void (*set_zoom) (GstBaseCameraSrc *self, gfloat zoom);
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/* Set the mode. If set, called when changing 'mode' property. Optional. */
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gboolean (*set_mode) (GstBaseCameraSrc *self,
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GstCameraBinMode mode);
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/* Set preview caps. If set, called called when setting new 'preview-caps'. Optional. */
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gboolean (*set_preview) (GstBaseCameraSrc *self,
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GstCaps *preview_caps);
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/* Called by the handler for 'start-capture'. Mandatory. */
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gboolean (*start_capture) (GstBaseCameraSrc * src);
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/* Called by the handler for 'stop-capture'. Mandatory. */
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void (*stop_capture) (GstBaseCameraSrc * src);
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gpointer _gst_reserved[GST_PADDING_LARGE];
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};
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#define MIN_ZOOM 1.0f
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#define MAX_ZOOM 10.0f
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#define ZOOM_1X MIN_ZOOM
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gboolean gst_base_camera_src_set_mode (GstBaseCameraSrc *self, GstCameraBinMode mode);
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void gst_base_camera_src_setup_zoom (GstBaseCameraSrc * self);
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void gst_base_camera_src_setup_preview (GstBaseCameraSrc * self, GstCaps * preview_caps);
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void gst_base_camera_src_finish_capture (GstBaseCameraSrc *self);
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void gst_base_camera_src_post_preview (GstBaseCameraSrc *self, GstSample * sample);
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// XXX add methods to get/set img capture and vid capture caps..
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#endif /* __GST_BASE_CAMERA_SRC_H__ */
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