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ae429de8f6
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/* GStreamer
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* Copyright (C) <2014> Wim Taymans <wim.taymans@gmail.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_DITHER_H__
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#define __GST_VIDEO_DITHER_H__
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#include <gst/gst.h>
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#include <gst/video/video-prelude.h>
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G_BEGIN_DECLS
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/**
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* GstVideoDitherMethod:
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* @GST_VIDEO_DITHER_NONE: no dithering
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* @GST_VIDEO_DITHER_VERTERR: propagate rounding errors downwards
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* @GST_VIDEO_DITHER_FLOYD_STEINBERG: Dither with floyd-steinberg error diffusion
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* @GST_VIDEO_DITHER_SIERRA_LITE: Dither with Sierra Lite error diffusion
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* @GST_VIDEO_DITHER_BAYER: ordered dither using a bayer pattern
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*
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* Different dithering methods to use.
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*/
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typedef enum {
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GST_VIDEO_DITHER_NONE,
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GST_VIDEO_DITHER_VERTERR,
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GST_VIDEO_DITHER_FLOYD_STEINBERG,
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GST_VIDEO_DITHER_SIERRA_LITE,
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GST_VIDEO_DITHER_BAYER,
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} GstVideoDitherMethod;
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/**
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* GstVideoDitherFlags:
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* @GST_VIDEO_DITHER_FLAG_NONE: no flags
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* @GST_VIDEO_DITHER_FLAG_INTERLACED: the input is interlaced
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* @GST_VIDEO_DITHER_FLAG_QUANTIZE: quantize values in addition to adding dither.
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*
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* Extra flags that influence the result from gst_video_chroma_resample_new().
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*/
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typedef enum {
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GST_VIDEO_DITHER_FLAG_NONE = 0,
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GST_VIDEO_DITHER_FLAG_INTERLACED = (1 << 0),
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GST_VIDEO_DITHER_FLAG_QUANTIZE = (1 << 1),
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} GstVideoDitherFlags;
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typedef struct _GstVideoDither GstVideoDither;
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/* circular dependency, need to include this after defining the enums */
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#include <gst/video/video-format.h>
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GST_VIDEO_API
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GstVideoDither * gst_video_dither_new (GstVideoDitherMethod method,
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GstVideoDitherFlags flags,
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GstVideoFormat format,
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guint quantizer[GST_VIDEO_MAX_COMPONENTS],
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guint width);
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GST_VIDEO_API
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void gst_video_dither_free (GstVideoDither *dither);
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GST_VIDEO_API
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void gst_video_dither_line (GstVideoDither *dither,
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gpointer line, guint x, guint y, guint width);
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G_END_DECLS
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#endif /* __GST_VIDEO_DITHER_H__ */
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