/*
* Copyright (C) 2006-2010 Michael Niedermayer <michaelni@gmx.at>
+ * 2010 James Darnley <james.darnley@gmail.com>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or modify
+ * Libav is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
- * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * with Libav; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "libavutil/cpu.h"
#include "libavutil/common.h"
+#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "yadif.h"
int mode;
/**
- * 0: bottom field first
- * 1: top field first
+ * 0: top field first
+ * 1: bottom field first
* -1: auto-detection
*/
int parity;
int frame_pending;
+ /**
+ * 0: deinterlace all frames
+ * 1: only deinterlace frames marked as interlaced
+ */
+ int auto_enable;
+
AVFilterBufferRef *cur;
AVFilterBufferRef *next;
AVFilterBufferRef *prev;
AVFilterBufferRef *out;
void (*filter_line)(uint8_t *dst,
uint8_t *prev, uint8_t *cur, uint8_t *next,
- int w, int refs, int parity, int mode);
+ int w, int prefs, int mrefs, int parity, int mode);
+
+ const AVPixFmtDescriptor *csp;
} YADIFContext;
+#define CHECK(j)\
+ { int score = FFABS(cur[mrefs-1+(j)] - cur[prefs-1-(j)])\
+ + FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\
+ + FFABS(cur[mrefs+1+(j)] - cur[prefs+1-(j)]);\
+ if (score < spatial_score) {\
+ spatial_score= score;\
+ spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\
+
+#define FILTER \
+ for (x = 0; x < w; x++) { \
+ int c = cur[mrefs]; \
+ int d = (prev2[0] + next2[0])>>1; \
+ int e = cur[prefs]; \
+ int temporal_diff0 = FFABS(prev2[0] - next2[0]); \
+ int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; \
+ int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \
+ int diff = FFMAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2); \
+ int spatial_pred = (c+e)>>1; \
+ int spatial_score = FFABS(cur[mrefs-1] - cur[prefs-1]) + FFABS(c-e) \
+ + FFABS(cur[mrefs+1] - cur[prefs+1]) - 1; \
+ \
+ CHECK(-1) CHECK(-2) }} }} \
+ CHECK( 1) CHECK( 2) }} }} \
+ \
+ if (mode < 2) { \
+ int b = (prev2[2*mrefs] + next2[2*mrefs])>>1; \
+ int f = (prev2[2*prefs] + next2[2*prefs])>>1; \
+ int max = FFMAX3(d-e, d-c, FFMIN(b-c, f-e)); \
+ int min = FFMIN3(d-e, d-c, FFMAX(b-c, f-e)); \
+ \
+ diff = FFMAX3(diff, min, -max); \
+ } \
+ \
+ if (spatial_pred > d + diff) \
+ spatial_pred = d + diff; \
+ else if (spatial_pred < d - diff) \
+ spatial_pred = d - diff; \
+ \
+ dst[0] = spatial_pred; \
+ \
+ dst++; \
+ cur++; \
+ prev++; \
+ next++; \
+ prev2++; \
+ next2++; \
+ }
+
static void filter_line_c(uint8_t *dst,
uint8_t *prev, uint8_t *cur, uint8_t *next,
- int w, int refs, int parity, int mode)
+ int w, int prefs, int mrefs, int parity, int mode)
{
int x;
uint8_t *prev2 = parity ? prev : cur ;
uint8_t *next2 = parity ? cur : next;
- for (x = 0; x < w; x++) {
- int c = cur[-refs];
- int d = (prev2[0] + next2[0])>>1;
- int e = cur[+refs];
- int temporal_diff0 = FFABS(prev2[0] - next2[0]);
- int temporal_diff1 =(FFABS(prev[-refs] - c) + FFABS(prev[+refs] - e) )>>1;
- int temporal_diff2 =(FFABS(next[-refs] - c) + FFABS(next[+refs] - e) )>>1;
- int diff = FFMAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2);
- int spatial_pred = (c+e)>>1;
- int spatial_score = FFABS(cur[-refs-1] - cur[+refs-1]) + FFABS(c-e)
- + FFABS(cur[-refs+1] - cur[+refs+1]) - 1;
-#define CHECK(j)\
- { int score = FFABS(cur[-refs-1+j] - cur[+refs-1-j])\
- + FFABS(cur[-refs +j] - cur[+refs -j])\
- + FFABS(cur[-refs+1+j] - cur[+refs+1-j]);\
- if (score < spatial_score) {\
- spatial_score= score;\
- spatial_pred= (cur[-refs +j] + cur[+refs -j])>>1;\
-
- CHECK(-1) CHECK(-2) }} }}
- CHECK( 1) CHECK( 2) }} }}
-
- if (mode < 2) {
- int b = (prev2[-2*refs] + next2[-2*refs])>>1;
- int f = (prev2[+2*refs] + next2[+2*refs])>>1;
-#if 0
- int a = cur[-3*refs];
- int g = cur[+3*refs];
- int max = FFMAX3(d-e, d-c, FFMIN3(FFMAX(b-c,f-e),FFMAX(b-c,b-a),FFMAX(f-g,f-e)) );
- int min = FFMIN3(d-e, d-c, FFMAX3(FFMIN(b-c,f-e),FFMIN(b-c,b-a),FFMIN(f-g,f-e)) );
-#else
- int max = FFMAX3(d-e, d-c, FFMIN(b-c, f-e));
- int min = FFMIN3(d-e, d-c, FFMAX(b-c, f-e));
-#endif
-
- diff = FFMAX3(diff, min, -max);
- }
-
- if (spatial_pred > d + diff)
- spatial_pred = d + diff;
- else if (spatial_pred < d - diff)
- spatial_pred = d - diff;
+ FILTER
+}
- dst[0] = spatial_pred;
+static void filter_line_c_16bit(uint16_t *dst,
+ uint16_t *prev, uint16_t *cur, uint16_t *next,
+ int w, int prefs, int mrefs, int parity, int mode)
+{
+ int x;
+ uint16_t *prev2 = parity ? prev : cur ;
+ uint16_t *next2 = parity ? cur : next;
+ mrefs /= 2;
+ prefs /= 2;
- dst++;
- cur++;
- prev++;
- next++;
- prev2++;
- next2++;
- }
+ FILTER
}
static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
YADIFContext *yadif = ctx->priv;
int y, i;
- for (i = 0; i < 3; i++) {
- int is_chroma = !!i;
- int w = dstpic->video->w >> is_chroma;
- int h = dstpic->video->h >> is_chroma;
+ for (i = 0; i < yadif->csp->nb_components; i++) {
+ int w = dstpic->video->w;
+ int h = dstpic->video->h;
int refs = yadif->cur->linesize[i];
+ int df = (yadif->csp->comp[i].depth_minus1 + 8) / 8;
+
+ if (i == 1 || i == 2) {
+ /* Why is this not part of the per-plane description thing? */
+ w >>= yadif->csp->log2_chroma_w;
+ h >>= yadif->csp->log2_chroma_h;
+ }
for (y = 0; y < h; y++) {
if ((y ^ parity) & 1) {
uint8_t *cur = &yadif->cur ->data[i][y*refs];
uint8_t *next = &yadif->next->data[i][y*refs];
uint8_t *dst = &dstpic->data[i][y*dstpic->linesize[i]];
- yadif->filter_line(dst, prev, cur, next, w, refs, parity ^ tff, yadif->mode);
+ int mode = y==1 || y+2==h ? 2 : yadif->mode;
+ yadif->filter_line(dst, prev, cur, next, w, y+1<h ? refs : -refs, y ? -refs : refs, parity ^ tff, mode);
} else {
memcpy(&dstpic->data[i][y*dstpic->linesize[i]],
- &yadif->cur->data[i][y*refs], w);
+ &yadif->cur->data[i][y*refs], w*df);
}
}
}
{
AVFilterBufferRef *picref;
int width = FFALIGN(w, 32);
- int height= FFALIGN(h+6, 32);
+ int height= FFALIGN(h+2, 32);
int i;
picref = avfilter_default_get_video_buffer(link, perms, width, height);
picref->video->h = h;
for (i = 0; i < 3; i++)
- picref->data[i] += 3 * picref->linesize[i];
+ picref->data[i] += picref->linesize[i];
return picref;
}
{
YADIFContext *yadif = ctx->priv;
AVFilterLink *link= ctx->outputs[0];
- int tff = yadif->parity == -1 ? yadif->cur->video->top_field_first : (yadif->parity^1);
+ int tff;
- if (is_second)
+ if (yadif->parity == -1) {
+ tff = yadif->cur->video->interlaced ?
+ yadif->cur->video->top_field_first : 1;
+ } else {
+ tff = yadif->parity^1;
+ }
+
+ if (is_second) {
yadif->out = avfilter_get_video_buffer(link, AV_PERM_WRITE | AV_PERM_PRESERVE |
AV_PERM_REUSE, link->w, link->h);
+ avfilter_copy_buffer_ref_props(yadif->out, yadif->cur);
+ yadif->out->video->interlaced = 0;
+ }
+
+ if (!yadif->csp)
+ yadif->csp = &av_pix_fmt_descriptors[link->format];
+ if (yadif->csp->comp[0].depth_minus1 / 8 == 1)
+ yadif->filter_line = filter_line_c_16bit;
filter(ctx, yadif->out, tff ^ !is_second, tff);
if (!yadif->cur)
return;
+ if (yadif->auto_enable && !yadif->cur->video->interlaced) {
+ yadif->out = avfilter_ref_buffer(yadif->cur, AV_PERM_READ);
+ avfilter_unref_buffer(yadif->prev);
+ yadif->prev = NULL;
+ avfilter_start_frame(ctx->outputs[0], yadif->out);
+ return;
+ }
+
if (!yadif->prev)
yadif->prev = avfilter_ref_buffer(yadif->cur, AV_PERM_READ);
if (!yadif->out)
return;
+ if (yadif->auto_enable && !yadif->cur->video->interlaced) {
+ avfilter_draw_slice(ctx->outputs[0], 0, link->h, 1);
+ avfilter_end_frame(ctx->outputs[0]);
+ return;
+ }
+
return_frame(ctx, 0);
}
return ret;
val = avfilter_poll_frame(link->src->inputs[0]);
}
- assert(yadif->next);
+ assert(yadif->next || !val);
+
+ if (yadif->auto_enable && yadif->next && !yadif->next->video->interlaced)
+ return val;
return val * ((yadif->mode&1)+1);
}
{
static const enum PixelFormat pix_fmts[] = {
PIX_FMT_YUV420P,
+ PIX_FMT_YUV422P,
+ PIX_FMT_YUV444P,
+ PIX_FMT_YUV410P,
+ PIX_FMT_YUV411P,
PIX_FMT_GRAY8,
+ PIX_FMT_YUVJ420P,
+ PIX_FMT_YUVJ422P,
+ PIX_FMT_YUVJ444P,
+ AV_NE( PIX_FMT_GRAY16BE, PIX_FMT_GRAY16LE ),
+ PIX_FMT_YUV440P,
+ PIX_FMT_YUVJ440P,
+ AV_NE( PIX_FMT_YUV420P10BE, PIX_FMT_YUV420P10LE ),
+ AV_NE( PIX_FMT_YUV422P10BE, PIX_FMT_YUV422P10LE ),
+ AV_NE( PIX_FMT_YUV444P10BE, PIX_FMT_YUV444P10LE ),
+ AV_NE( PIX_FMT_YUV420P16BE, PIX_FMT_YUV420P16LE ),
+ AV_NE( PIX_FMT_YUV422P16BE, PIX_FMT_YUV422P16LE ),
+ AV_NE( PIX_FMT_YUV444P16BE, PIX_FMT_YUV444P16LE ),
+ PIX_FMT_YUVA420P,
PIX_FMT_NONE
};
yadif->mode = 0;
yadif->parity = -1;
+ yadif->auto_enable = 0;
+ yadif->csp = NULL;
- if (args) sscanf(args, "%d:%d", &yadif->mode, &yadif->parity);
+ if (args) sscanf(args, "%d:%d:%d", &yadif->mode, &yadif->parity, &yadif->auto_enable);
yadif->filter_line = filter_line_c;
- if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX)
+ if (HAVE_SSSE3 && cpu_flags & AV_CPU_FLAG_SSSE3)
+ yadif->filter_line = ff_yadif_filter_line_ssse3;
+ else if (HAVE_SSE && cpu_flags & AV_CPU_FLAG_SSE2)
+ yadif->filter_line = ff_yadif_filter_line_sse2;
+ else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX)
yadif->filter_line = ff_yadif_filter_line_mmx;
- av_log(ctx, AV_LOG_INFO, "mode:%d parity:%d\n", yadif->mode, yadif->parity);
+ av_log(ctx, AV_LOG_INFO, "mode:%d parity:%d auto_enable:%d\n", yadif->mode, yadif->parity, yadif->auto_enable);
return 0;
}
projects / ffmpeg / blobdiff