Second Life viewer sources 1.18.1.2

1 files changed, 101 insertions, 0 deletions

diff --git a/linden/indra/llmedia/llmediaimplgstreamervidplug.h b/linden/indra/llmedia/llmediaimplgstreamervidplug.h
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+/**
+ * @file llmediaimplgstreamervidplug.h
+ * @brief Video-consuming static GStreamer plugin for gst-to-LLMediaImpl
+ *
+ * Copyright (c) 2007-2007, 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
+ */
+
+#ifndef __GST_SLVIDEO_H__
+#define __GST_SLVIDEO_H__
+
+#if LL_GSTREAMER_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.)
+        U8*  retained_frame_data;
+        int  retained_frame_allocbytes;
+        int  retained_frame_width, retained_frame_height;
+        SLVPixelFormat retained_frame_format;
+};
+
+struct _GstSLVideoClass 
+{
+        GstVideoSink parent_class;
+};
+
+GType gst_slvideo_get_type (void);
+
+void gst_slvideo_init_class (void);
+
+G_END_DECLS
+
+#endif // LL_GSTREAMER_ENABLED
+
+#endif /* __GST_SLVIDEO_H__ */