2268db2cd0
The new fields can be accessed directly and are more intelligible. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
535 lines
16 KiB
C
535 lines
16 KiB
C
/*
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* Copyright (C) 2006-2010 Michael Niedermayer <michaelni@gmx.at>
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* 2010 James Darnley <james.darnley@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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/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 "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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#undef NDEBUG
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#include <assert.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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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 - 3;
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prev = (uint8_t*)prev1 + w - 3;
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cur = (uint8_t*)cur1 + w - 3;
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next = (uint8_t*)next1 + w - 3;
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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 - 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 - 3;
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prev = (uint16_t*)prev1 + w - 3;
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cur = (uint16_t*)cur1 + w - 3;
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next = (uint16_t*)next1 + w - 3;
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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 - 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 + 7) / 8;
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int pix_3 = 3 * df;
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int slice_h = td->h / nb_jobs;
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int slice_start = jobnr * slice_h;
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int slice_end = (jobnr == nb_jobs - 1) ? td->h : (jobnr + 1) * slice_h;
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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 - 6,
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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 >>= yadif->csp->log2_chroma_w;
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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 AVFrame *get_video_buffer(AVFilterLink *link, int w, int h)
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{
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AVFrame *frame;
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int width = FFALIGN(w, 32);
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int height = FFALIGN(h + 2, 32);
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int i;
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frame = ff_default_get_video_buffer(link, width, height);
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frame->width = w;
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frame->height = h;
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for (i = 0; i < 3; i++)
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frame->data[i] += frame->linesize[i];
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return frame;
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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 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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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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return 0;
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if (yadif->auto_enable && !yadif->cur->interlaced_frame) {
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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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!(yadif->prev = av_frame_clone(yadif->cur)))
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return AVERROR(ENOMEM);
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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->next) {
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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->cur);
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return 0;
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}
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static int poll_frame(AVFilterLink *link)
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{
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YADIFContext *yadif = link->src->priv;
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int ret, val;
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if (yadif->frame_pending)
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return 1;
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val = ff_poll_frame(link->src->inputs[0]);
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if (val <= 0)
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return val;
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//FIXME change API to not requre this red tape
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if (val == 1 && !yadif->next) {
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if ((ret = ff_request_frame(link->src->inputs[0])) < 0)
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return ret;
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val = ff_poll_frame(link->src->inputs[0]);
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if (val <= 0)
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return val;
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}
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assert(yadif->next || !val);
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if (yadif->auto_enable && yadif->next && !yadif->next->interlaced_frame)
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return val;
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return val * ((yadif->mode&1)+1);
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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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if (yadif->prev) av_frame_free(&yadif->prev);
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if (yadif->cur ) av_frame_free(&yadif->cur );
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if (yadif->next) 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_NE( AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_GRAY16LE ),
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AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUVJ440P,
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AV_NE( AV_PIX_FMT_YUV420P10BE, AV_PIX_FMT_YUV420P10LE ),
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AV_NE( AV_PIX_FMT_YUV422P10BE, AV_PIX_FMT_YUV422P10LE ),
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AV_NE( AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUV444P10LE ),
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AV_NE( AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_YUV420P16LE ),
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AV_NE( AV_PIX_FMT_YUV422P16BE, AV_PIX_FMT_YUV422P16LE ),
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AV_NE( AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUV444P16LE ),
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AV_PIX_FMT_YUVA420P,
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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));
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return 0;
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}
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static int config_props(AVFilterLink *link)
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{
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YADIFContext *s = link->src->priv;
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link->time_base.num = link->src->inputs[0]->time_base.num;
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link->time_base.den = link->src->inputs[0]->time_base.den * 2;
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link->w = link->src->inputs[0]->w;
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link->h = link->src->inputs[0]->h;
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s->csp = av_pix_fmt_desc_get(link->format);
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if (s->csp->comp[0].depth > 8) {
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s->filter_line = filter_line_c_16bit;
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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
|
|
static const AVOption options[] = {
|
|
{ "mode", NULL, OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, FLAGS },
|
|
{ "parity", NULL, OFFSET(parity), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, FLAGS, "parity" },
|
|
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, .unit = "parity" },
|
|
{ "tff", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .unit = "parity" },
|
|
{ "bff", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .unit = "parity" },
|
|
{ "auto", NULL, OFFSET(auto_enable), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass yadif_class = {
|
|
.class_name = "yadif",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const AVFilterPad avfilter_vf_yadif_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.get_video_buffer = get_video_buffer,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad avfilter_vf_yadif_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.poll_frame = poll_frame,
|
|
.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_SLICE_THREADS,
|
|
};
|