mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-16 16:02:54 +02:00
b331b62931
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
/*****************************************************************************
|
|
* algo_basic.h : Basic algorithms for the VLC deinterlacer
|
|
*****************************************************************************
|
|
* Copyright (C) 2000-2011 the VideoLAN team
|
|
* $Id$
|
|
*
|
|
* Author: Sam Hocevar <sam@zoy.org>
|
|
* Damien Lucas <nitrox@videolan.org> (Bob, Blend)
|
|
* Laurent Aimar <fenrir@videolan.org> (Bob, Blend)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
|
*****************************************************************************/
|
|
|
|
#ifndef VLC_DEINTERLACE_ALGO_BASIC_H
|
|
#define VLC_DEINTERLACE_ALGO_BASIC_H 1
|
|
|
|
/**
|
|
* \file
|
|
* Basic deinterlace algorithms: Discard, Bob, Linear, Mean and Blend.
|
|
*/
|
|
|
|
/* Forward declarations */
|
|
struct filter_t;
|
|
struct picture_t;
|
|
|
|
/*****************************************************************************
|
|
* Functions
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* RenderDiscard: only keep top or bottom field, discard the other.
|
|
*
|
|
* For a 2x (framerate-doubling) near-equivalent, see RenderBob().
|
|
*
|
|
* @param p_filter The filter instance. Must be non-NULL.
|
|
* @param p_outpic Output frame. Must be allocated by caller.
|
|
* @param p_pic Input frame. Must exist.
|
|
* @param i_field Keep which field? 0 = top field, 1 = bottom field.
|
|
* @see RenderBob()
|
|
* @see Deinterlace()
|
|
*/
|
|
void RenderDiscard( filter_t *p_filter,
|
|
picture_t *p_outpic, picture_t *p_pic, int i_field );
|
|
|
|
/**
|
|
* RenderBob: basic framerate doubler.
|
|
*
|
|
* Creates an illusion of full vertical resolution while running.
|
|
*
|
|
* For a 1x (non-doubling) near-equivalent, see RenderDiscard().
|
|
*
|
|
* @param p_filter The filter instance. Must be non-NULL.
|
|
* @param p_outpic Output frame. Must be allocated by caller.
|
|
* @param p_pic Input frame. Must exist.
|
|
* @param i_field Render which field? 0 = top field, 1 = bottom field.
|
|
* @see RenderLinear()
|
|
* @see Deinterlace()
|
|
*/
|
|
void RenderBob( filter_t *p_filter,
|
|
picture_t *p_outpic, picture_t *p_pic, int i_field );
|
|
|
|
/**
|
|
* RenderLinear: Bob with linear interpolation.
|
|
*
|
|
* There is no 1x (non-doubling) equivalent for this filter.
|
|
*
|
|
* @param p_filter The filter instance. Must be non-NULL.
|
|
* @param p_outpic Output frame. Must be allocated by caller.
|
|
* @param p_pic Input frame. Must exist.
|
|
* @param i_field Render which field? 0 = top field, 1 = bottom field.
|
|
* @see RenderBob()
|
|
* @see Deinterlace()
|
|
*/
|
|
void RenderLinear( filter_t *p_filter,
|
|
picture_t *p_outpic, picture_t *p_pic, int i_field );
|
|
|
|
/**
|
|
* RenderMean: half-resolution blender.
|
|
*
|
|
* Renders the mean of the top and bottom fields.
|
|
*
|
|
* Obviously, there is no 2x equivalent for this filter.
|
|
*
|
|
* @param p_filter The filter instance. Must be non-NULL.
|
|
* @param p_outpic Output frame. Must be allocated by caller.
|
|
* @param p_pic Input frame. Must exist.
|
|
* @see Deinterlace()
|
|
*/
|
|
void RenderMean( filter_t *p_filter,
|
|
picture_t *p_outpic, picture_t *p_pic );
|
|
|
|
/**
|
|
* RenderBlend: full-resolution blender.
|
|
*
|
|
* The first line is copied; for the rest of the lines, line N
|
|
* is the mean of lines N and N-1 in the input.
|
|
*
|
|
* Obviously, there is no 2x equivalent for this filter.
|
|
*
|
|
* @param p_filter The filter instance. Must be non-NULL.
|
|
* @param p_outpic Output frame. Must be allocated by caller.
|
|
* @param p_pic Input frame. Must exist.
|
|
* @see Deinterlace()
|
|
*/
|
|
void RenderBlend( filter_t *p_filter,
|
|
picture_t *p_outpic, picture_t *p_pic );
|
|
|
|
#endif
|