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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.
102 lines
4.1 KiB
C
102 lines
4.1 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_SCALER_H__
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#define __GST_VIDEO_SCALER_H__
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#include <gst/gst.h>
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#include <gst/video/video-format.h>
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#include <gst/video/video-color.h>
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#include <gst/video/video-resampler.h>
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G_BEGIN_DECLS
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/**
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* GST_VIDEO_SCALER_OPT_DITHER_METHOD:
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*
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* #GST_TYPE_VIDEO_DITHER_METHOD, The dither method to use for propagating
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* quatization errors.
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*/
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#define GST_VIDEO_SCALER_OPT_DITHER_METHOD "GstVideoScaler.dither-method"
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/**
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* GstVideoScalerFlags:
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* @GST_VIDEO_SCALER_FLAG_NONE: no flags
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* @GST_VIDEO_SCALER_FLAG_INTERLACED: Set up a scaler for interlaced content
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*
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* Different scale flags.
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*/
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typedef enum {
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GST_VIDEO_SCALER_FLAG_NONE = (0),
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GST_VIDEO_SCALER_FLAG_INTERLACED = (1 << 0),
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} GstVideoScalerFlags;
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typedef struct _GstVideoScaler GstVideoScaler;
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GST_VIDEO_API
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GstVideoScaler * gst_video_scaler_new (GstVideoResamplerMethod method,
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GstVideoScalerFlags flags,
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guint n_taps,
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guint in_size, guint out_size,
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GstStructure * options);
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GST_VIDEO_API
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void gst_video_scaler_free (GstVideoScaler *scale);
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GST_VIDEO_API
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guint gst_video_scaler_get_max_taps (GstVideoScaler *scale);
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GST_VIDEO_API
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const gdouble * gst_video_scaler_get_coeff (GstVideoScaler *scale,
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guint out_offset,
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guint *in_offset,
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guint *n_taps);
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GST_VIDEO_API
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void gst_video_scaler_horizontal (GstVideoScaler *scale,
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GstVideoFormat format,
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gpointer src, gpointer dest,
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guint dest_offset, guint width);
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GST_VIDEO_API
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void gst_video_scaler_vertical (GstVideoScaler *scale,
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GstVideoFormat format,
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gpointer src_lines[], gpointer dest,
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guint dest_offset, guint width);
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GST_VIDEO_API
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GstVideoScaler * gst_video_scaler_combine_packed_YUV (GstVideoScaler * y_scale,
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GstVideoScaler *uv_scale,
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GstVideoFormat in_format,
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GstVideoFormat out_format);
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GST_VIDEO_API
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void gst_video_scaler_2d (GstVideoScaler *hscale,
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GstVideoScaler *vscale,
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GstVideoFormat format,
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gpointer src, gint src_stride,
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gpointer dest, gint dest_stride,
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guint x, guint y,
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guint width, guint height);
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G_END_DECLS
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#endif /* __GST_VIDEO_SCALER_H__ */
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