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802028081c
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.
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/*
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* GStreamer
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* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
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* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
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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 __CAMERABIN_PREVIEW_H_
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#define __CAMERABIN_PREVIEW_H_
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#ifndef GST_USE_UNSTABLE_API
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#warning "camera bin preview 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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typedef struct
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{
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GstElement *pipeline;
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GstElement *appsrc;
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GstElement *filter;
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GstElement *capsfilter;
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GstElement *appsink;
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GstElement *element;
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GstCaps *pending_preview_caps;
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guint processing;
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GMutex *processing_lock;
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GCond *processing_cond;
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} GstCameraBinPreviewPipelineData;
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GstCameraBinPreviewPipelineData *gst_camerabin_create_preview_pipeline (GstElement * element, GstElement * filter);
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void gst_camerabin_destroy_preview_pipeline (GstCameraBinPreviewPipelineData * preview);
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gboolean gst_camerabin_preview_pipeline_post (GstCameraBinPreviewPipelineData * preview, GstBuffer * buffer);
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void gst_camerabin_preview_set_caps (GstCameraBinPreviewPipelineData * preview, GstCaps * caps);
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#endif /* #ifndef __CAMERABIN_PREVIEW_H_ */
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