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gstreamer/gst-libs/gst/basecamerabinsrc/gstcamerabinpreview.h

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camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
* 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
Fix FSF address https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 20:38:00 +00:00
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
*/
#ifndef __CAMERABIN_PREVIEW_H_
#define __CAMERABIN_PREVIEW_H_
basecamerasrc: add unstable-API warnings if GST_USE_UNSTABLE_API is not defined So people know this is unstable API even if it ends up right next to our other API.
2011-04-14 15:14:57 +00:00
#ifndef GST_USE_UNSTABLE_API
#warning "camera bin preview is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
#include <gst/gst.h>
basecamerabinsrc: GST_EXPORT -> GST_BASE_CAMERA_BIN_SRC_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:29:08 +00:00
#include "basecamerabinsrc-prelude.h"
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
basecamerabinsrc: silence g-ir-scanner warnings They're legit, but there's lots of other stuff that needs fixing up in this API, so just silence for now and add a FIXME and leave it for some other day. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1475>
2020-07-28 10:43:47 +00:00
/**
* GstCameraBinPreviewPipelineData: (skip)
*/
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
typedef struct
{
GstElement *pipeline;
GstElement *appsrc;
GstElement *filter;
GstElement *appsink;
basecamerasrc: optimize state changing speed Create preview pipeline already in initialization phase. This speeds up NULL_TO_READY state change. Also implement a separate function for setting the preview filter element. This also restricts the preview filter property to work only on NULL state.
2011-10-31 09:59:53 +00:00
GstElement *vscale;
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
GstElement *element;
basecamerabinsrc: Protection for previewpipeline when setting new preview caps Implements a state indicating flag to preview pipeline, so that new caps are not set if the pipeline is processing a preview. The caps are set as pending and applied when the next preview post is called. In this case a wait was implemented in the post_preview function, so that new preview image buffer will wait until the other previews have been posted to the application and the new caps can be used safely.
2011-04-08 12:22:11 +00:00
GstCaps *pending_preview_caps;
guint processing;
port to new gthread API
2012-01-19 10:34:26 +00:00
GMutex processing_lock;
GCond processing_cond;
basecamerabinsrc: Protection for previewpipeline when setting new preview caps Implements a state indicating flag to preview pipeline, so that new caps are not set if the pipeline is processing a preview. The caps are set as pending and applied when the next preview post is called. In this case a wait was implemented in the post_preview function, so that new preview image buffer will wait until the other previews have been posted to the application and the new caps can be used safely.
2011-04-08 12:22:11 +00:00
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
} GstCameraBinPreviewPipelineData;
basecamerabinsrc: GST_EXPORT -> GST_BASE_CAMERA_BIN_SRC_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:29:08 +00:00
GST_BASE_CAMERA_BIN_SRC_API
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
GstCameraBinPreviewPipelineData *gst_camerabin_create_preview_pipeline (GstElement * element, GstElement * filter);
basecamerabinsrc: mark symbols explicitly for export with GST_EXPORT
2017-07-17 23:31:36 +00:00
basecamerabinsrc: GST_EXPORT -> GST_BASE_CAMERA_BIN_SRC_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:29:08 +00:00
GST_BASE_CAMERA_BIN_SRC_API
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
void gst_camerabin_destroy_preview_pipeline (GstCameraBinPreviewPipelineData * preview);
basecamerabinsrc: mark symbols explicitly for export with GST_EXPORT
2017-07-17 23:31:36 +00:00
basecamerabinsrc: GST_EXPORT -> GST_BASE_CAMERA_BIN_SRC_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:29:08 +00:00
GST_BASE_CAMERA_BIN_SRC_API
camerabin: update preview buffer pushing 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.
2012-07-29 03:53:29 +00:00
gboolean gst_camerabin_preview_pipeline_post (GstCameraBinPreviewPipelineData * preview, GstSample * sample);
basecamerabinsrc: mark symbols explicitly for export with GST_EXPORT
2017-07-17 23:31:36 +00:00
basecamerabinsrc: GST_EXPORT -> GST_BASE_CAMERA_BIN_SRC_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:29:08 +00:00
GST_BASE_CAMERA_BIN_SRC_API
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
void gst_camerabin_preview_set_caps (GstCameraBinPreviewPipelineData * preview, GstCaps * caps);
basecamerabinsrc: mark symbols explicitly for export with GST_EXPORT
2017-07-17 23:31:36 +00:00
basecamerabinsrc: GST_EXPORT -> GST_BASE_CAMERA_BIN_SRC_API We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:29:08 +00:00
GST_BASE_CAMERA_BIN_SRC_API
basecamerasrc: optimize state changing speed Create preview pipeline already in initialization phase. This speeds up NULL_TO_READY state change. Also implement a separate function for setting the preview filter element. This also restricts the preview filter property to work only on NULL state.
2011-10-31 09:59:53 +00:00
gboolean gst_camerabin_preview_set_filter (GstCameraBinPreviewPipelineData * preview, GstElement * filter);
camerabin2: Move preview helper functions to basecamerabinsrc Move preview helper functions to baseacamerabinsrc so they can be reused by multiple camerabin2 sources.
2011-02-03 15:02:14 +00:00
#endif /* #ifndef __CAMERABIN_PREVIEW_H_ */
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