| /* GStreamer |
| * Copyright (C) <2014> Wim Taymans <wim.taymans@gmail.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * 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 |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __GST_VIDEO_SCALER_H__ |
| #define __GST_VIDEO_SCALER_H__ |
| |
| #include <gst/gst.h> |
| |
| #include <gst/video/video-format.h> |
| #include <gst/video/video-color.h> |
| #include <gst/video/video-resampler.h> |
| |
| G_BEGIN_DECLS |
| |
| /** |
| * GST_VIDEO_SCALER_OPT_DITHER_METHOD: |
| * |
| * #GST_TYPE_VIDEO_DITHER_METHOD, The dither method to use for propagating |
| * quatization errors. |
| */ |
| #define GST_VIDEO_SCALER_OPT_DITHER_METHOD "GstVideoScaler.dither-method" |
| |
| /** |
| * GstVideoScalerFlags: |
| * @GST_VIDEO_SCALER_FLAG_NONE: no flags |
| * @GST_VIDEO_SCALER_FLAG_INTERLACED: Set up a scaler for interlaced content |
| * |
| * Different scale flags. |
| */ |
| typedef enum { |
| GST_VIDEO_SCALER_FLAG_NONE = (0), |
| GST_VIDEO_SCALER_FLAG_INTERLACED = (1 << 0), |
| } GstVideoScalerFlags; |
| |
| typedef struct _GstVideoScaler GstVideoScaler; |
| |
| GST_EXPORT |
| GstVideoScaler * gst_video_scaler_new (GstVideoResamplerMethod method, |
| GstVideoScalerFlags flags, |
| guint n_taps, |
| guint in_size, guint out_size, |
| GstStructure * options); |
| |
| GST_EXPORT |
| void gst_video_scaler_free (GstVideoScaler *scale); |
| |
| GST_EXPORT |
| guint gst_video_scaler_get_max_taps (GstVideoScaler *scale); |
| |
| GST_EXPORT |
| const gdouble * gst_video_scaler_get_coeff (GstVideoScaler *scale, |
| guint out_offset, |
| guint *in_offset, |
| guint *n_taps); |
| |
| GST_EXPORT |
| void gst_video_scaler_horizontal (GstVideoScaler *scale, |
| GstVideoFormat format, |
| gpointer src, gpointer dest, |
| guint dest_offset, guint width); |
| |
| GST_EXPORT |
| void gst_video_scaler_vertical (GstVideoScaler *scale, |
| GstVideoFormat format, |
| gpointer src_lines[], gpointer dest, |
| guint dest_offset, guint width); |
| |
| GST_EXPORT |
| GstVideoScaler * gst_video_scaler_combine_packed_YUV (GstVideoScaler * y_scale, |
| GstVideoScaler *uv_scale, |
| GstVideoFormat in_format, |
| GstVideoFormat out_format); |
| |
| GST_EXPORT |
| void gst_video_scaler_2d (GstVideoScaler *hscale, |
| GstVideoScaler *vscale, |
| GstVideoFormat format, |
| gpointer src, gint src_stride, |
| gpointer dest, gint dest_stride, |
| guint x, guint y, |
| guint width, guint height); |
| |
| G_END_DECLS |
| |
| #endif /* __GST_VIDEO_SCALER_H__ */ |
