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Diffstat (limited to 'indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h')
| -rw-r--r-- | indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h b/indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h new file mode 100644 index 0000000000..f6d55b8758 --- /dev/null +++ b/indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h @@ -0,0 +1,109 @@ +/** + * @file llmediaimplgstreamervidplug.h + * @brief Video-consuming static GStreamer plugin for gst-to-LLMediaImpl + * + * $LicenseInfo:firstyear=2007&license=viewergpl$ + * + * Copyright (c) 2007-2009, 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. + * $/LicenseInfo$ + */ + +#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; + 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__ */ |