MLT 7.30.0
mlt_luma_map.c File Reference

functions to generate and read luma-wipe transition maps More...

#include "mlt_luma_map.h"
#include "mlt_pool.h"
#include "mlt_types.h"
#include <ctype.h>
#include <stdlib.h>
#include <string.h>

Macros

#define HALF_USHRT_MAX   (1 << 15)

Functions

int mlt_luma_map_from_pgm (const char *filename, uint16_t **map, int *width, int *height)
 Load the luma map from PGM stream.
void mlt_luma_map_from_yuv422 (uint8_t *image, uint16_t **map, int width, int height)
 Generate a 16-bit luma map from an 8-bit image.
void mlt_luma_map_init (mlt_luma_map self)
mlt_luma_map mlt_luma_map_new (const char *path)
uint16_t * mlt_luma_map_render (mlt_luma_map self)
static int sqrti (int n)

Detailed Description

functions to generate and read luma-wipe transition maps

Copyright (C) 2003-2019 Meltytech, LLC

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; either version 2.1 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 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

Macro Definition Documentation

◆ HALF_USHRT_MAX

#define HALF_USHRT_MAX   (1 << 15)

Function Documentation

◆ mlt_luma_map_from_pgm()

int mlt_luma_map_from_pgm ( const char * filename,
uint16_t ** map,
int * width,
int * height )

Load the luma map from PGM stream.

◆ mlt_luma_map_from_yuv422()

void mlt_luma_map_from_yuv422 ( uint8_t * image,
uint16_t ** map,
int width,
int height )

Generate a 16-bit luma map from an 8-bit image.

◆ mlt_luma_map_init()

void mlt_luma_map_init ( mlt_luma_map self)

◆ mlt_luma_map_new()

mlt_luma_map mlt_luma_map_new ( const char * path)

◆ mlt_luma_map_render()

uint16_t * mlt_luma_map_render ( mlt_luma_map self)

◆ sqrti()

int sqrti ( int n)
inlinestatic