llmediaimplgstreamervidplug.h
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- /**
- * @file llmediaimplgstreamervidplug.h
- * @brief Video-consuming static GStreamer plugin for gst-to-LLMediaImpl
- *
- * @cond
- * $LicenseInfo:firstyear=2007&license=viewergpl$
- *
- * Copyright (c) 2007-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- * @endcond
- */
- #ifndef __GST_SLVIDEO_H__
- #define __GST_SLVIDEO_H__
- #if LL_GSTREAMER010_ENABLED
- extern "C" {
- #include <gst/gst.h>
- #include <gst/video/video.h>
- #include <gst/video/gstvideosink.h>
- }
- G_BEGIN_DECLS
- /* #defines don't like whitespacey bits */
- #define GST_TYPE_SLVIDEO
- (gst_slvideo_get_type())
- #define GST_SLVIDEO(obj)
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SLVIDEO,GstSLVideo))
- #define GST_SLVIDEO_CLASS(klass)
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SLVIDEO,GstSLVideoClass))
- #define GST_IS_SLVIDEO(obj)
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SLVIDEO))
- #define GST_IS_SLVIDEO_CLASS(klass)
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SLVIDEO))
- typedef struct _GstSLVideo GstSLVideo;
- typedef struct _GstSLVideoClass GstSLVideoClass;
- typedef enum {
- SLV_PF_UNKNOWN = 0,
- SLV_PF_RGBX = 1,
- SLV_PF_BGRX = 2,
- SLV__END = 3
- } SLVPixelFormat;
- const int SLVPixelFormatBytes[SLV__END] = {1, 4, 4};
- struct _GstSLVideo
- {
- GstVideoSink video_sink;
- GstCaps *caps;
- int fps_n, fps_d;
- int par_n, par_d;
- int height, width;
- SLVPixelFormat format;
- // SHARED WITH APPLICATION:
- // Access to the following should be protected by GST_OBJECT_LOCK() on
- // the GstSLVideo object, and should be totally consistent upon UNLOCK
- // (i.e. all written at once to reflect the current retained frame info
- // when the retained frame is updated.)
- bool retained_frame_ready; // new frame ready since flag last reset. (*TODO: could get the writer to wait on a semaphore instead of having the reader poll, potentially making dropped frames somewhat cheaper.)
- unsigned char* retained_frame_data;
- int retained_frame_allocbytes;
- int retained_frame_width, retained_frame_height;
- SLVPixelFormat retained_frame_format;
- // sticky resize info
- bool resize_forced_always;
- int resize_try_width;
- int resize_try_height;
- };
- struct _GstSLVideoClass
- {
- GstVideoSinkClass parent_class;
- };
- GType gst_slvideo_get_type (void);
- void gst_slvideo_init_class (void);
- G_END_DECLS
- #endif // LL_GSTREAMER010_ENABLED
- #endif /* __GST_SLVIDEO_H__ */