gstreamer/gst/videoscale/vs_image.h
Ravi Kiran K N f16cf75194 videoscale: support lanczos method for NV formats
Support lanczos scaling method for NV12 and NV21 formats.
Scale the 'Y' plane and scale 'NV' plane.
Implementation for submethods - int16, int32, float and double

https://bugzilla.gnome.org/show_bug.cgi?id=737400
2014-09-26 13:05:18 +01:00

182 lines
8.8 KiB
C

/*
* Image Scaling Functions
* Copyright (c) 2005 David A. Schleef <ds@schleef.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __VS_IMAGE_H__
#define __VS_IMAGE_H__
#include <glib.h>
#include <_stdint.h>
typedef struct _VSImage VSImage;
struct _VSImage {
uint8_t *real_pixels;
int real_width;
int real_height;
int border_left, border_right;
int border_top, border_bottom;
uint8_t *pixels;
int width;
int height;
gsize stride;
};
G_GNUC_INTERNAL void vs_image_scale_nearest_RGBA (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_RGBA (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_lanczos_AYUV (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf,
double sharpness,
gboolean dither,
int submethod,
double a,
double sharpen);
G_GNUC_INTERNAL void vs_image_scale_lanczos_AYUV64 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf,
double sharpness,
gboolean dither,
int submethod,
double a,
double sharpen);
G_GNUC_INTERNAL void vs_image_scale_nearest_RGB (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_RGB (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_YUYV (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_YUYV (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_UYVY (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_UYVY (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_NV12 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_NV12 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_Y (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_Y (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_lanczos_Y (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf,
double sharpness,
gboolean dither,
int submethod,
double a,
double sharpen);
G_GNUC_INTERNAL void vs_image_scale_lanczos_NV (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf,
double sharpness,
gboolean dither,
int submethod,
double a,
double sharpen);
G_GNUC_INTERNAL void vs_image_scale_nearest_RGB565 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_RGB565 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_RGB555 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_RGB555 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_Y16 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_Y16 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_AYUV16 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_linear_AYUV16 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf);
G_GNUC_INTERNAL void vs_image_scale_nearest_AYUV64 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf8);
G_GNUC_INTERNAL void vs_image_scale_linear_AYUV64 (const VSImage * dest,
const VSImage * src,
uint8_t * tmpbuf8);
#endif