mirror of
https://github.com/FFmpeg/FFmpeg.git
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681e008d06
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
550 lines
18 KiB
C
550 lines
18 KiB
C
/*
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* Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at>
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* 2010 James Darnley <james.darnley@gmail.com>
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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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#include "libavutil/avassert.h"
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#include "libavutil/cpu.h"
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#include "libavutil/common.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.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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#include "yadif.h"
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typedef struct ThreadData {
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AVFrame *frame;
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int plane;
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int w, h;
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int parity;
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int tff;
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} ThreadData;
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#define CHECK(j)\
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{ int score = FFABS(cur[mrefs - 1 + (j)] - cur[prefs - 1 - (j)])\
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+ FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\
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+ FFABS(cur[mrefs + 1 + (j)] - cur[prefs + 1 - (j)]);\
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if (score < spatial_score) {\
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spatial_score= score;\
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spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\
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/* The is_not_edge argument here controls when the code will enter a branch
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* which reads up to and including x-3 and x+3. */
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#define FILTER(start, end, is_not_edge) \
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for (x = start; x < end; x++) { \
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int c = cur[mrefs]; \
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int d = (prev2[0] + next2[0])>>1; \
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int e = cur[prefs]; \
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int temporal_diff0 = FFABS(prev2[0] - next2[0]); \
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int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; \
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int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \
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int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \
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int spatial_pred = (c+e) >> 1; \
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\
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if (is_not_edge) {\
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int spatial_score = FFABS(cur[mrefs - 1] - cur[prefs - 1]) + FFABS(c-e) \
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+ FFABS(cur[mrefs + 1] - cur[prefs + 1]) - 1; \
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CHECK(-1) CHECK(-2) }} }} \
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CHECK( 1) CHECK( 2) }} }} \
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}\
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\
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if (!(mode&2)) { \
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int b = (prev2[2 * mrefs] + next2[2 * mrefs])>>1; \
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int f = (prev2[2 * prefs] + next2[2 * prefs])>>1; \
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int max = FFMAX3(d - e, d - c, FFMIN(b - c, f - e)); \
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int min = FFMIN3(d - e, d - c, FFMAX(b - c, f - e)); \
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\
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diff = FFMAX3(diff, min, -max); \
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} \
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\
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if (spatial_pred > d + diff) \
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spatial_pred = d + diff; \
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else if (spatial_pred < d - diff) \
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spatial_pred = d - diff; \
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\
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dst[0] = spatial_pred; \
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\
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dst++; \
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cur++; \
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prev++; \
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next++; \
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prev2++; \
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next2++; \
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}
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static void filter_line_c(void *dst1,
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void *prev1, void *cur1, void *next1,
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int w, int prefs, int mrefs, int parity, int mode)
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{
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uint8_t *dst = dst1;
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uint8_t *prev = prev1;
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uint8_t *cur = cur1;
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uint8_t *next = next1;
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int x;
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uint8_t *prev2 = parity ? prev : cur ;
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uint8_t *next2 = parity ? cur : next;
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/* The function is called with the pointers already pointing to data[3] and
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* with 6 subtracted from the width. This allows the FILTER macro to be
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* called so that it processes all the pixels normally. A constant value of
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* true for is_not_edge lets the compiler ignore the if statement. */
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FILTER(0, w, 1)
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}
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#define MAX_ALIGN 8
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static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1,
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int w, int prefs, int mrefs, int parity, int mode)
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{
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uint8_t *dst = dst1;
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uint8_t *prev = prev1;
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uint8_t *cur = cur1;
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uint8_t *next = next1;
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int x;
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uint8_t *prev2 = parity ? prev : cur ;
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uint8_t *next2 = parity ? cur : next;
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/* Only edge pixels need to be processed here. A constant value of false
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* for is_not_edge should let the compiler ignore the whole branch. */
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FILTER(0, 3, 0)
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dst = (uint8_t*)dst1 + w - (MAX_ALIGN-1);
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prev = (uint8_t*)prev1 + w - (MAX_ALIGN-1);
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cur = (uint8_t*)cur1 + w - (MAX_ALIGN-1);
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next = (uint8_t*)next1 + w - (MAX_ALIGN-1);
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prev2 = (uint8_t*)(parity ? prev : cur);
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next2 = (uint8_t*)(parity ? cur : next);
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FILTER(w - (MAX_ALIGN-1), w - 3, 1)
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FILTER(w - 3, w, 0)
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}
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static void filter_line_c_16bit(void *dst1,
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void *prev1, void *cur1, void *next1,
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int w, int prefs, int mrefs, int parity,
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int mode)
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{
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uint16_t *dst = dst1;
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uint16_t *prev = prev1;
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uint16_t *cur = cur1;
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uint16_t *next = next1;
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int x;
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uint16_t *prev2 = parity ? prev : cur ;
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uint16_t *next2 = parity ? cur : next;
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mrefs /= 2;
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prefs /= 2;
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FILTER(0, w, 1)
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}
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static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1,
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int w, int prefs, int mrefs, int parity, int mode)
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{
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uint16_t *dst = dst1;
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uint16_t *prev = prev1;
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uint16_t *cur = cur1;
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uint16_t *next = next1;
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int x;
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uint16_t *prev2 = parity ? prev : cur ;
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uint16_t *next2 = parity ? cur : next;
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mrefs /= 2;
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prefs /= 2;
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FILTER(0, 3, 0)
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dst = (uint16_t*)dst1 + w - (MAX_ALIGN/2-1);
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prev = (uint16_t*)prev1 + w - (MAX_ALIGN/2-1);
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cur = (uint16_t*)cur1 + w - (MAX_ALIGN/2-1);
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next = (uint16_t*)next1 + w - (MAX_ALIGN/2-1);
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prev2 = (uint16_t*)(parity ? prev : cur);
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next2 = (uint16_t*)(parity ? cur : next);
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FILTER(w - (MAX_ALIGN/2-1), w - 3, 1)
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FILTER(w - 3, w, 0)
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}
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static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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YADIFContext *s = ctx->priv;
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ThreadData *td = arg;
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int refs = s->cur->linesize[td->plane];
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int df = (s->csp->comp[td->plane].depth_minus1 + 8) / 8;
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int pix_3 = 3 * df;
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int slice_start = (td->h * jobnr ) / nb_jobs;
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int slice_end = (td->h * (jobnr+1)) / nb_jobs;
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int y;
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/* filtering reads 3 pixels to the left/right; to avoid invalid reads,
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* we need to call the c variant which avoids this for border pixels
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*/
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for (y = slice_start; y < slice_end; y++) {
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if ((y ^ td->parity) & 1) {
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uint8_t *prev = &s->prev->data[td->plane][y * refs];
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uint8_t *cur = &s->cur ->data[td->plane][y * refs];
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uint8_t *next = &s->next->data[td->plane][y * refs];
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uint8_t *dst = &td->frame->data[td->plane][y * td->frame->linesize[td->plane]];
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int mode = y == 1 || y + 2 == td->h ? 2 : s->mode;
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s->filter_line(dst + pix_3, prev + pix_3, cur + pix_3,
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next + pix_3, td->w - (3 + MAX_ALIGN/df-1),
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y + 1 < td->h ? refs : -refs,
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y ? -refs : refs,
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td->parity ^ td->tff, mode);
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s->filter_edges(dst, prev, cur, next, td->w,
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y + 1 < td->h ? refs : -refs,
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y ? -refs : refs,
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td->parity ^ td->tff, mode);
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} else {
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memcpy(&td->frame->data[td->plane][y * td->frame->linesize[td->plane]],
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&s->cur->data[td->plane][y * refs], td->w * df);
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}
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}
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return 0;
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}
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static void filter(AVFilterContext *ctx, AVFrame *dstpic,
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int parity, int tff)
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{
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YADIFContext *yadif = ctx->priv;
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ThreadData td = { .frame = dstpic, .parity = parity, .tff = tff };
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int i;
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for (i = 0; i < yadif->csp->nb_components; i++) {
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int w = dstpic->width;
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int h = dstpic->height;
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if (i == 1 || i == 2) {
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w = FF_CEIL_RSHIFT(w, yadif->csp->log2_chroma_w);
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h = FF_CEIL_RSHIFT(h, yadif->csp->log2_chroma_h);
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}
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td.w = w;
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td.h = h;
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td.plane = i;
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ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(h, ctx->graph->nb_threads));
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}
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emms_c();
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}
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static int return_frame(AVFilterContext *ctx, int is_second)
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{
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YADIFContext *yadif = ctx->priv;
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AVFilterLink *link = ctx->outputs[0];
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int tff, ret;
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if (yadif->parity == -1) {
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tff = yadif->cur->interlaced_frame ?
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yadif->cur->top_field_first : 1;
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} else {
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tff = yadif->parity ^ 1;
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}
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if (is_second) {
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yadif->out = ff_get_video_buffer(link, link->w, link->h);
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if (!yadif->out)
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return AVERROR(ENOMEM);
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av_frame_copy_props(yadif->out, yadif->cur);
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yadif->out->interlaced_frame = 0;
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}
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filter(ctx, yadif->out, tff ^ !is_second, tff);
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if (is_second) {
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int64_t cur_pts = yadif->cur->pts;
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int64_t next_pts = yadif->next->pts;
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if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
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yadif->out->pts = cur_pts + next_pts;
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} else {
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yadif->out->pts = AV_NOPTS_VALUE;
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}
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}
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ret = ff_filter_frame(ctx->outputs[0], yadif->out);
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yadif->frame_pending = (yadif->mode&1) && !is_second;
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return ret;
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}
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static int checkstride(YADIFContext *yadif, const AVFrame *a, const AVFrame *b)
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{
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int i;
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for (i = 0; i < yadif->csp->nb_components; i++)
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if (a->linesize[i] != b->linesize[i])
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return 1;
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return 0;
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}
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static void fixstride(AVFilterLink *link, AVFrame *f)
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{
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AVFrame *dst = ff_default_get_video_buffer(link, f->width, f->height);
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if(!dst)
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return;
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av_frame_copy_props(dst, f);
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av_image_copy(dst->data, dst->linesize,
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(const uint8_t **)f->data, f->linesize,
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dst->format, dst->width, dst->height);
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av_frame_unref(f);
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av_frame_move_ref(f, dst);
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av_frame_free(&dst);
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}
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static int filter_frame(AVFilterLink *link, AVFrame *frame)
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{
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AVFilterContext *ctx = link->dst;
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YADIFContext *yadif = ctx->priv;
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av_assert0(frame);
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if (yadif->frame_pending)
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return_frame(ctx, 1);
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if (yadif->prev)
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av_frame_free(&yadif->prev);
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yadif->prev = yadif->cur;
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yadif->cur = yadif->next;
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yadif->next = frame;
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if (!yadif->cur &&
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!(yadif->cur = av_frame_clone(yadif->next)))
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return AVERROR(ENOMEM);
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if (checkstride(yadif, yadif->next, yadif->cur)) {
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av_log(ctx, AV_LOG_VERBOSE, "Reallocating frame due to differing stride\n");
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fixstride(link, yadif->next);
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}
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if (checkstride(yadif, yadif->next, yadif->cur))
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fixstride(link, yadif->cur);
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if (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))
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fixstride(link, yadif->prev);
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if (checkstride(yadif, yadif->next, yadif->cur) || (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))) {
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av_log(ctx, AV_LOG_ERROR, "Failed to reallocate frame\n");
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return -1;
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}
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if ((yadif->deint && !yadif->cur->interlaced_frame) || ctx->is_disabled) {
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yadif->out = av_frame_clone(yadif->cur);
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if (!yadif->out)
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return AVERROR(ENOMEM);
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av_frame_free(&yadif->prev);
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if (yadif->out->pts != AV_NOPTS_VALUE)
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yadif->out->pts *= 2;
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return ff_filter_frame(ctx->outputs[0], yadif->out);
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}
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if (!yadif->prev)
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return 0;
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yadif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h);
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if (!yadif->out)
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return AVERROR(ENOMEM);
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av_frame_copy_props(yadif->out, yadif->cur);
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yadif->out->interlaced_frame = 0;
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if (yadif->out->pts != AV_NOPTS_VALUE)
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yadif->out->pts *= 2;
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return return_frame(ctx, 0);
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}
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static int request_frame(AVFilterLink *link)
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{
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AVFilterContext *ctx = link->src;
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YADIFContext *yadif = ctx->priv;
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if (yadif->frame_pending) {
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return_frame(ctx, 1);
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return 0;
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}
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do {
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int ret;
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if (yadif->eof)
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return AVERROR_EOF;
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ret = ff_request_frame(link->src->inputs[0]);
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if (ret == AVERROR_EOF && yadif->cur) {
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AVFrame *next = av_frame_clone(yadif->next);
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if (!next)
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return AVERROR(ENOMEM);
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next->pts = yadif->next->pts * 2 - yadif->cur->pts;
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filter_frame(link->src->inputs[0], next);
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yadif->eof = 1;
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} else if (ret < 0) {
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return ret;
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}
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} while (!yadif->prev);
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return 0;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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YADIFContext *yadif = ctx->priv;
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av_frame_free(&yadif->prev);
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av_frame_free(&yadif->cur );
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av_frame_free(&yadif->next);
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}
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static int query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUV422P,
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AV_PIX_FMT_YUV444P,
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AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUV411P,
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AV_PIX_FMT_GRAY8,
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AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVJ422P,
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AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_GRAY16,
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AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUVJ440P,
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AV_PIX_FMT_YUV420P9,
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AV_PIX_FMT_YUV422P9,
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AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_YUV420P10,
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AV_PIX_FMT_YUV422P10,
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AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV420P12,
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AV_PIX_FMT_YUV422P12,
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AV_PIX_FMT_YUV444P12,
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AV_PIX_FMT_YUV420P14,
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AV_PIX_FMT_YUV422P14,
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AV_PIX_FMT_YUV444P14,
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AV_PIX_FMT_YUV420P16,
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AV_PIX_FMT_YUV422P16,
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AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_YUVA422P,
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AV_PIX_FMT_YUVA444P,
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AV_PIX_FMT_GBRP,
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AV_PIX_FMT_GBRAP,
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AV_PIX_FMT_NONE
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};
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ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int config_props(AVFilterLink *link)
|
|
{
|
|
AVFilterContext *ctx = link->src;
|
|
YADIFContext *s = link->src->priv;
|
|
|
|
link->time_base.num = link->src->inputs[0]->time_base.num;
|
|
link->time_base.den = link->src->inputs[0]->time_base.den * 2;
|
|
link->w = link->src->inputs[0]->w;
|
|
link->h = link->src->inputs[0]->h;
|
|
|
|
if(s->mode&1)
|
|
link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1});
|
|
|
|
if (link->w < 3 || link->h < 3) {
|
|
av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
s->csp = av_pix_fmt_desc_get(link->format);
|
|
if (s->csp->comp[0].depth_minus1 / 8 == 1) {
|
|
s->filter_line = filter_line_c_16bit;
|
|
s->filter_edges = filter_edges_16bit;
|
|
} else {
|
|
s->filter_line = filter_line_c;
|
|
s->filter_edges = filter_edges;
|
|
}
|
|
|
|
if (ARCH_X86)
|
|
ff_yadif_init_x86(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#define OFFSET(x) offsetof(YADIFContext, x)
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
|
|
|
|
#define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, unit }
|
|
|
|
static const AVOption yadif_options[] = {
|
|
{ "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=YADIF_MODE_SEND_FRAME}, 0, 3, FLAGS, "mode"},
|
|
CONST("send_frame", "send one frame for each frame", YADIF_MODE_SEND_FRAME, "mode"),
|
|
CONST("send_field", "send one frame for each field", YADIF_MODE_SEND_FIELD, "mode"),
|
|
CONST("send_frame_nospatial", "send one frame for each frame, but skip spatial interlacing check", YADIF_MODE_SEND_FRAME_NOSPATIAL, "mode"),
|
|
CONST("send_field_nospatial", "send one frame for each field, but skip spatial interlacing check", YADIF_MODE_SEND_FIELD_NOSPATIAL, "mode"),
|
|
|
|
{ "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=YADIF_PARITY_AUTO}, -1, 1, FLAGS, "parity" },
|
|
CONST("tff", "assume top field first", YADIF_PARITY_TFF, "parity"),
|
|
CONST("bff", "assume bottom field first", YADIF_PARITY_BFF, "parity"),
|
|
CONST("auto", "auto detect parity", YADIF_PARITY_AUTO, "parity"),
|
|
|
|
{ "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=YADIF_DEINT_ALL}, 0, 1, FLAGS, "deint" },
|
|
CONST("all", "deinterlace all frames", YADIF_DEINT_ALL, "deint"),
|
|
CONST("interlaced", "only deinterlace frames marked as interlaced", YADIF_DEINT_INTERLACED, "deint"),
|
|
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(yadif);
|
|
|
|
static const AVFilterPad avfilter_vf_yadif_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad avfilter_vf_yadif_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.request_frame = request_frame,
|
|
.config_props = config_props,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_yadif = {
|
|
.name = "yadif",
|
|
.description = NULL_IF_CONFIG_SMALL("Deinterlace the input image."),
|
|
.priv_size = sizeof(YADIFContext),
|
|
.priv_class = &yadif_class,
|
|
.uninit = uninit,
|
|
.query_formats = query_formats,
|
|
.inputs = avfilter_vf_yadif_inputs,
|
|
.outputs = avfilter_vf_yadif_outputs,
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|