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Diffstat (limited to 'indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h')
| -rw-r--r-- | indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h | 105 |
1 files changed, 105 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..29d65fa4e9 --- /dev/null +++ b/indra/media_plugins/gstreamer010/llmediaimplgstreamervidplug.h @@ -0,0 +1,105 @@ +/** + * @file llmediaimplgstreamervidplug.h + * @brief Video-consuming static GStreamer plugin for gst-to-LLMediaImpl + * + * @cond + * $LicenseInfo:firstyear=2007&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + * @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__ */ |