86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
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/*
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* Copyright (c) 2011 Stefano Sabatini
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* Copyright (c) 2010 Baptiste Coudurier
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* Copyright (c) 2003 Michael Zucchi <notzed@ximian.com>
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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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* temporal field interlace filter, ported from MPlayer/libmpcodecs
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*/
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#ifndef AVFILTER_TINTERLACE_H
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#define AVFILTER_TINTERLACE_H
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#include "libavutil/bswap.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "drawutils.h"
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#include "avfilter.h"
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#define TINTERLACE_FLAG_VLPF 01
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#define TINTERLACE_FLAG_CVLPF 2
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#define TINTERLACE_FLAG_EXACT_TB 4
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#define TINTERLACE_FLAG_BYPASS_IL 8
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enum VLPFilter {
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VLPF_OFF = 0,
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VLPF_LIN = 1,
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VLPF_CMP = 2,
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};
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enum TInterlaceMode {
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MODE_MERGE = 0,
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MODE_DROP_EVEN,
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MODE_DROP_ODD,
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MODE_PAD,
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MODE_INTERLEAVE_TOP,
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MODE_INTERLEAVE_BOTTOM,
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MODE_INTERLACEX2,
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MODE_MERGEX2,
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MODE_NB,
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};
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enum InterlaceScanMode {
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MODE_TFF = 0,
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MODE_BFF,
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};
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typedef struct TInterlaceContext {
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const AVClass *class;
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int mode; ///< TInterlaceMode, interlace mode selected
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AVRational preout_time_base;
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int flags; ///< flags affecting interlacing algorithm
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int lowpass; ///< legacy interlace filter lowpass mode
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int frame; ///< number of the output frame
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int vsub; ///< chroma vertical subsampling
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AVFrame *cur;
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AVFrame *next;
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uint8_t *black_data[4]; ///< buffer used to fill padded lines
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int black_linesize[4];
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FFDrawContext draw;
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FFDrawColor color;
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const AVPixFmtDescriptor *csp;
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void (*lowpass_line)(uint8_t *dstp, ptrdiff_t width, const uint8_t *srcp,
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ptrdiff_t mref, ptrdiff_t pref, int clip_max);
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} TInterlaceContext;
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void ff_tinterlace_init_x86(TInterlaceContext *interlace);
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#endif /* AVFILTER_TINTERLACE_H */
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