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041231fcd6
I'm writing a cuda implementation of yadif, and while this
obviously has a very different implementation of the actual
filtering, all the frame management is unchanged. To avoid
duplicating that logic, let's make it shareable.
From the perspective of the existing filter, the only real change
is introducing a function pointer for the filter() function so it
can be specified for the specific filter.
(cherry picked from commit 598f0f3927)
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/*
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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
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_YADIF_H
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#define AVFILTER_YADIF_H
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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enum YADIFMode {
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YADIF_MODE_SEND_FRAME = 0, ///< send 1 frame for each frame
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YADIF_MODE_SEND_FIELD = 1, ///< send 1 frame for each field
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YADIF_MODE_SEND_FRAME_NOSPATIAL = 2, ///< send 1 frame for each frame but skips spatial interlacing check
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YADIF_MODE_SEND_FIELD_NOSPATIAL = 3, ///< send 1 frame for each field but skips spatial interlacing check
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};
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enum YADIFParity {
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YADIF_PARITY_TFF = 0, ///< top field first
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YADIF_PARITY_BFF = 1, ///< bottom field first
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YADIF_PARITY_AUTO = -1, ///< auto detection
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};
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enum YADIFDeint {
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YADIF_DEINT_ALL = 0, ///< deinterlace all frames
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YADIF_DEINT_INTERLACED = 1, ///< only deinterlace frames marked as interlaced
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};
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typedef struct YADIFContext {
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const AVClass *class;
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int mode; ///< YADIFMode
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int parity; ///< YADIFParity
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int deint; ///< YADIFDeint
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int frame_pending;
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AVFrame *cur;
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AVFrame *next;
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AVFrame *prev;
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AVFrame *out;
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void (*filter)(AVFilterContext *ctx, AVFrame *dstpic, int parity, int tff);
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/**
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* Required alignment for filter_line
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*/
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void (*filter_line)(void *dst,
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void *prev, void *cur, void *next,
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int w, int prefs, int mrefs, int parity, int mode);
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void (*filter_edges)(void *dst, void *prev, void *cur, void *next,
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int w, int prefs, int mrefs, int parity, int mode);
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const AVPixFmtDescriptor *csp;
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int eof;
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uint8_t *temp_line;
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int temp_line_size;
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} YADIFContext;
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void ff_yadif_init_x86(YADIFContext *yadif);
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int ff_yadif_filter_frame(AVFilterLink *link, AVFrame *frame);
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int ff_yadif_request_frame(AVFilterLink *link);
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extern const AVOption ff_yadif_options[];
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#endif /* AVFILTER_YADIF_H */
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