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libavfilter
interlace.h
Go to the documentation of this file.
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* @file
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* progressive to interlaced content filter, inspired by heavy debugging of
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* tinterlace filter.
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*/
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#ifndef AVFILTER_INTERLACE_H
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#define AVFILTER_INTERLACE_H
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#include "
libavutil/common.h
"
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#include "
libavutil/imgutils.h
"
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#include "
libavutil/opt.h
"
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#include "
avfilter.h
"
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#include "
formats.h
"
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#include "
internal.h
"
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#include "
video.h
"
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enum
ScanMode
{
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MODE_TFF
= 0,
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MODE_BFF
= 1,
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};
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enum
FieldType
{
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FIELD_UPPER
= 0,
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FIELD_LOWER
= 1,
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};
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typedef
struct
InterlaceContext
{
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const
AVClass
*
class
;
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enum
ScanMode
scan
;
// top or bottom field first scanning
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int
lowpass
;
// enable or disable low pass filterning
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AVFrame
*
cur
, *
next
;
// the two frames from which the new one is obtained
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void
(*
lowpass_line
)(
uint8_t
*
dstp
, ptrdiff_t linesize,
const
uint8_t
*
srcp
,
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const
uint8_t
*srcp_above,
const
uint8_t
*srcp_below);
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}
InterlaceContext
;
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void
ff_interlace_init_x86
(
InterlaceContext
*interlace);
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#endif
/* AVFILTER_INTERLACE_H */
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