mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
2da5bf4c2f
This complex (-1 2 6 2 -1) filter slightly less reduces interlace 'twitter' but better retain detail and subjective sharpness impression compared to the linear (1 2 1) filter. Signed-off-by: Thomas Mundt <tmundt75@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* progressive to interlaced content filter, inspired by heavy debugging of
|
|
* tinterlace filter.
|
|
*/
|
|
|
|
#ifndef AVFILTER_INTERLACE_H
|
|
#define AVFILTER_INTERLACE_H
|
|
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/opt.h"
|
|
|
|
#include "avfilter.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
enum ScanMode {
|
|
MODE_TFF = 0,
|
|
MODE_BFF = 1,
|
|
};
|
|
|
|
enum FieldType {
|
|
FIELD_UPPER = 0,
|
|
FIELD_LOWER = 1,
|
|
};
|
|
|
|
enum VLPFilter {
|
|
VLPF_OFF = 0,
|
|
VLPF_LIN = 1,
|
|
VLPF_CMP = 2,
|
|
};
|
|
|
|
typedef struct InterlaceContext {
|
|
const AVClass *class;
|
|
enum ScanMode scan; // top or bottom field first scanning
|
|
int lowpass; // enable or disable low pass filtering
|
|
AVFrame *cur, *next; // the two frames from which the new one is obtained
|
|
void (*lowpass_line)(uint8_t *dstp, ptrdiff_t linesize, const uint8_t *srcp,
|
|
ptrdiff_t mref, ptrdiff_t pref);
|
|
} InterlaceContext;
|
|
|
|
void ff_interlace_init_x86(InterlaceContext *interlace);
|
|
|
|
#endif /* AVFILTER_INTERLACE_H */
|