virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-26 19:01:44 +02:00
Code Issues Releases Activity
ebe78e3ef0
FFmpeg/libavfilter/vf_w3fdif.c
Andreas Rheinhardt 790f793844 avutil/common: Don't auto-include mem.h 
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00

629 lines
22 KiB
C
Raw Blame History

/*
* Copyright (C) 2012 British Broadcasting Corporation, All Rights Reserved
* Author of de-interlace algorithm: Jim Easterbrook for BBC R&D
* Based on the process described by Martin Weston for BBC R&D
* Author of FFmpeg filter: Mark Himsley for BBC Broadcast Systems Development
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
#include "w3fdif.h"
typedef struct W3FDIFContext {
const AVClass *class;
int filter; ///< 0 is simple, 1 is more complex
int mode; ///< 0 is frame, 1 is field
int parity; ///< frame field parity
int deint; ///< which frames to deinterlace
int linesize[4]; ///< bytes of pixel data per line for each plane
int planeheight[4]; ///< height of each plane
int field; ///< which field are we on, 0 or 1
int eof;
int nb_planes;
AVFrame *prev, *cur, *next; ///< previous, current, next frames
int32_t **work_line; ///< lines we are calculating
int nb_threads;
int max;
W3FDIFDSPContext dsp;
} W3FDIFContext;
#define OFFSET(x) offsetof(W3FDIFContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#define CONST(name, help, val, u) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, .unit = u }
static const AVOption w3fdif_options[] = {
{ "filter", "specify the filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, .unit = "filter" },
CONST("simple", NULL, 0, "filter"),
CONST("complex", NULL, 1, "filter"),
{ "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, .unit = "mode"},
CONST("frame", "send one frame for each frame", 0, "mode"),
CONST("field", "send one frame for each field", 1, "mode"),
{ "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=-1}, -1, 1, FLAGS, .unit = "parity" },
CONST("tff", "assume top field first", 0, "parity"),
CONST("bff", "assume bottom field first", 1, "parity"),
CONST("auto", "auto detect parity", -1, "parity"),
{ "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, .unit = "deint" },
CONST("all", "deinterlace all frames", 0, "deint"),
CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"),
{ NULL }
};
AVFILTER_DEFINE_CLASS(w3fdif);
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUVJ411P,
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV440P10,
AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
AV_PIX_FMT_YUV440P12,
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
AV_PIX_FMT_NONE
};
static void filter_simple_low(int32_t *work_line,
uint8_t *in_lines_cur[2],
const int16_t *coef, int linesize)
{
int i;
for (i = 0; i < linesize; i++) {
*work_line = *in_lines_cur[0]++ * coef[0];
*work_line++ += *in_lines_cur[1]++ * coef[1];
}
}
static void filter_complex_low(int32_t *work_line,
uint8_t *in_lines_cur[4],
const int16_t *coef, int linesize)
{
int i;
for (i = 0; i < linesize; i++) {
*work_line = *in_lines_cur[0]++ * coef[0];
*work_line += *in_lines_cur[1]++ * coef[1];
*work_line += *in_lines_cur[2]++ * coef[2];
*work_line++ += *in_lines_cur[3]++ * coef[3];
}
}
static void filter_simple_high(int32_t *work_line,
uint8_t *in_lines_cur[3],
uint8_t *in_lines_adj[3],
const int16_t *coef, int linesize)
{
int i;
for (i = 0; i < linesize; i++) {
*work_line += *in_lines_cur[0]++ * coef[0];
*work_line += *in_lines_adj[0]++ * coef[0];
*work_line += *in_lines_cur[1]++ * coef[1];
*work_line += *in_lines_adj[1]++ * coef[1];
*work_line += *in_lines_cur[2]++ * coef[2];
*work_line++ += *in_lines_adj[2]++ * coef[2];
}
}
static void filter_complex_high(int32_t *work_line,
uint8_t *in_lines_cur[5],
uint8_t *in_lines_adj[5],
const int16_t *coef, int linesize)
{
int i;
for (i = 0; i < linesize; i++) {
*work_line += *in_lines_cur[0]++ * coef[0];
*work_line += *in_lines_adj[0]++ * coef[0];
*work_line += *in_lines_cur[1]++ * coef[1];
*work_line += *in_lines_adj[1]++ * coef[1];
*work_line += *in_lines_cur[2]++ * coef[2];
*work_line += *in_lines_adj[2]++ * coef[2];
*work_line += *in_lines_cur[3]++ * coef[3];
*work_line += *in_lines_adj[3]++ * coef[3];
*work_line += *in_lines_cur[4]++ * coef[4];
*work_line++ += *in_lines_adj[4]++ * coef[4];
}
}
static void filter_scale(uint8_t *out_pixel, const int32_t *work_pixel, int linesize, int max)
{
int j;
for (j = 0; j < linesize; j++, out_pixel++, work_pixel++)
*out_pixel = av_clip(*work_pixel, 0, 255 * 256 * 128) >> 15;
}
static void filter16_simple_low(int32_t *work_line,
uint8_t *in_lines_cur8[2],
const int16_t *coef, int linesize)
{
uint16_t *in_lines_cur[2] = { (uint16_t *)in_lines_cur8[0], (uint16_t *)in_lines_cur8[1] };
int i;
linesize /= 2;
for (i = 0; i < linesize; i++) {
*work_line = *in_lines_cur[0]++ * coef[0];
*work_line++ += *in_lines_cur[1]++ * coef[1];
}
}
static void filter16_complex_low(int32_t *work_line,
uint8_t *in_lines_cur8[4],
const int16_t *coef, int linesize)
{
uint16_t *in_lines_cur[4] = { (uint16_t *)in_lines_cur8[0],
(uint16_t *)in_lines_cur8[1],
(uint16_t *)in_lines_cur8[2],
(uint16_t *)in_lines_cur8[3] };
int i;
linesize /= 2;
for (i = 0; i < linesize; i++) {
*work_line = *in_lines_cur[0]++ * coef[0];
*work_line += *in_lines_cur[1]++ * coef[1];
*work_line += *in_lines_cur[2]++ * coef[2];
*work_line++ += *in_lines_cur[3]++ * coef[3];
}
}
static void filter16_simple_high(int32_t *work_line,
uint8_t *in_lines_cur8[3],
uint8_t *in_lines_adj8[3],
const int16_t *coef, int linesize)
{
uint16_t *in_lines_cur[3] = { (uint16_t *)in_lines_cur8[0],
(uint16_t *)in_lines_cur8[1],
(uint16_t *)in_lines_cur8[2] };
uint16_t *in_lines_adj[3] = { (uint16_t *)in_lines_adj8[0],
(uint16_t *)in_lines_adj8[1],
(uint16_t *)in_lines_adj8[2] };
int i;
linesize /= 2;
for (i = 0; i < linesize; i++) {
*work_line += *in_lines_cur[0]++ * coef[0];
*work_line += *in_lines_adj[0]++ * coef[0];
*work_line += *in_lines_cur[1]++ * coef[1];
*work_line += *in_lines_adj[1]++ * coef[1];
*work_line += *in_lines_cur[2]++ * coef[2];
*work_line++ += *in_lines_adj[2]++ * coef[2];
}
}
static void filter16_complex_high(int32_t *work_line,
uint8_t *in_lines_cur8[5],
uint8_t *in_lines_adj8[5],
const int16_t *coef, int linesize)
{
uint16_t *in_lines_cur[5] = { (uint16_t *)in_lines_cur8[0],
(uint16_t *)in_lines_cur8[1],
(uint16_t *)in_lines_cur8[2],
(uint16_t *)in_lines_cur8[3],
(uint16_t *)in_lines_cur8[4] };
uint16_t *in_lines_adj[5] = { (uint16_t *)in_lines_adj8[0],
(uint16_t *)in_lines_adj8[1],
(uint16_t *)in_lines_adj8[2],
(uint16_t *)in_lines_adj8[3],
(uint16_t *)in_lines_adj8[4] };
int i;
linesize /= 2;
for (i = 0; i < linesize; i++) {
*work_line += *in_lines_cur[0]++ * coef[0];
*work_line += *in_lines_adj[0]++ * coef[0];
*work_line += *in_lines_cur[1]++ * coef[1];
*work_line += *in_lines_adj[1]++ * coef[1];
*work_line += *in_lines_cur[2]++ * coef[2];
*work_line += *in_lines_adj[2]++ * coef[2];
*work_line += *in_lines_cur[3]++ * coef[3];
*work_line += *in_lines_adj[3]++ * coef[3];
*work_line += *in_lines_cur[4]++ * coef[4];
*work_line++ += *in_lines_adj[4]++ * coef[4];
}
}
static void filter16_scale(uint8_t *out_pixel8, const int32_t *work_pixel, int linesize, int max)
{
uint16_t *out_pixel = (uint16_t *)out_pixel8;
int j;
linesize /= 2;
for (j = 0; j < linesize; j++, out_pixel++, work_pixel++)
*out_pixel = av_clip(*work_pixel, 0, max) >> 15;
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
W3FDIFContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int ret, i, depth, nb_threads;
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
return ret;
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
s->planeheight[0] = s->planeheight[3] = inlink->h;
if (inlink->h < 3) {
av_log(ctx, AV_LOG_ERROR, "Video of less than 3 lines is not supported\n");
return AVERROR(EINVAL);
}
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
nb_threads = ff_filter_get_nb_threads(ctx);
s->work_line = av_calloc(nb_threads, sizeof(*s->work_line));
if (!s->work_line)
return AVERROR(ENOMEM);
s->nb_threads = nb_threads;
for (i = 0; i < s->nb_threads; i++) {
s->work_line[i] = av_calloc(FFALIGN(s->linesize[0], 32), sizeof(*s->work_line[0]));
if (!s->work_line[i])
return AVERROR(ENOMEM);
}
depth = desc->comp[0].depth;
s->max = ((1 << depth) - 1) * 256 * 128;
if (depth <= 8) {
s->dsp.filter_simple_low = filter_simple_low;
s->dsp.filter_complex_low = filter_complex_low;
s->dsp.filter_simple_high = filter_simple_high;
s->dsp.filter_complex_high = filter_complex_high;
s->dsp.filter_scale = filter_scale;
} else {
s->dsp.filter_simple_low = filter16_simple_low;
s->dsp.filter_complex_low = filter16_complex_low;
s->dsp.filter_simple_high = filter16_simple_high;
s->dsp.filter_complex_high = filter16_complex_high;
s->dsp.filter_scale = filter16_scale;
}
#if ARCH_X86
ff_w3fdif_init_x86(&s->dsp, depth);
#endif
return 0;
}
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = ctx->inputs[0];
W3FDIFContext *s = ctx->priv;
outlink->time_base = av_mul_q(inlink->time_base, (AVRational){1, 2});
if (s->mode)
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){2, 1});
return 0;
}
/*
* Filter coefficients from PH-2071, scaled by 256 * 128.
* Each set of coefficients has a set for low-frequencies and high-frequencies.
* n_coef_lf[] and n_coef_hf[] are the number of coefs for simple and more-complex.
* It is important for later that n_coef_lf[] is even and n_coef_hf[] is odd.
* coef_lf[][] and coef_hf[][] are the coefficients for low-frequencies
* and high-frequencies for simple and more-complex mode.
*/
static const int8_t n_coef_lf[2] = { 2, 4 };
static const int16_t coef_lf[2][4] = {{ 16384, 16384, 0, 0},
{ -852, 17236, 17236, -852}};
static const int8_t n_coef_hf[2] = { 3, 5 };
static const int16_t coef_hf[2][5] = {{ -2048, 4096, -2048, 0, 0},
{ 1016, -3801, 5570, -3801, 1016}};
typedef struct ThreadData {
AVFrame *out, *cur, *adj;
} ThreadData;
static int deinterlace_plane_slice(AVFilterContext *ctx, void *arg,
int jobnr, int nb_jobs, int plane)
{
W3FDIFContext *s = ctx->priv;
ThreadData *td = arg;
AVFrame *out = td->out;
AVFrame *cur = td->cur;
AVFrame *adj = td->adj;
const int filter = s->filter;
uint8_t *in_line, *in_lines_cur[5], *in_lines_adj[5];
uint8_t *out_line, *out_pixel;
int32_t *work_line, *work_pixel;
uint8_t *cur_data = cur->data[plane];
uint8_t *adj_data = adj->data[plane];
uint8_t *dst_data = out->data[plane];
const int linesize = s->linesize[plane];
const int height = s->planeheight[plane];
const int cur_line_stride = cur->linesize[plane];
const int adj_line_stride = adj->linesize[plane];
const int dst_line_stride = out->linesize[plane];
const int start = (height * jobnr) / nb_jobs;
const int end = (height * (jobnr+1)) / nb_jobs;
const int max = s->max;
const int interlaced = !!(cur->flags & AV_FRAME_FLAG_INTERLACED);
const int tff = s->field == (s->parity == -1 ? interlaced ? !!(cur->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST) : 1 :
s->parity ^ 1);
int j, y_in, y_out;
/* copy unchanged the lines of the field */
y_out = start + (tff ^ (start & 1));
in_line = cur_data + (y_out * cur_line_stride);
out_line = dst_data + (y_out * dst_line_stride);
while (y_out < end) {
memcpy(out_line, in_line, linesize);
y_out += 2;
in_line += cur_line_stride * 2;
out_line += dst_line_stride * 2;
}
/* interpolate other lines of the field */
y_out = start + ((!tff) ^ (start & 1));
out_line = dst_data + (y_out * dst_line_stride);
while (y_out < end) {
/* get low vertical frequencies from current field */
for (j = 0; j < n_coef_lf[filter]; j++) {
y_in = (y_out + 1) + (j * 2) - n_coef_lf[filter];
while (y_in < 0)
y_in += 2;
while (y_in >= height)
y_in -= 2;
in_lines_cur[j] = cur_data + (y_in * cur_line_stride);
}
work_line = s->work_line[jobnr];
switch (n_coef_lf[filter]) {
case 2:
s->dsp.filter_simple_low(work_line, in_lines_cur,
coef_lf[filter], linesize);
break;
case 4:
s->dsp.filter_complex_low(work_line, in_lines_cur,
coef_lf[filter], linesize);
}
/* get high vertical frequencies from adjacent fields */
for (j = 0; j < n_coef_hf[filter]; j++) {
y_in = (y_out + 1) + (j * 2) - n_coef_hf[filter];
while (y_in < 0)
y_in += 2;
while (y_in >= height)
y_in -= 2;
in_lines_cur[j] = cur_data + (y_in * cur_line_stride);
in_lines_adj[j] = adj_data + (y_in * adj_line_stride);
}
work_line = s->work_line[jobnr];
switch (n_coef_hf[filter]) {
case 3:
s->dsp.filter_simple_high(work_line, in_lines_cur, in_lines_adj,
coef_hf[filter], linesize);
break;
case 5:
s->dsp.filter_complex_high(work_line, in_lines_cur, in_lines_adj,
coef_hf[filter], linesize);
}
/* save scaled result to the output frame, scaling down by 256 * 128 */
work_pixel = s->work_line[jobnr];
out_pixel = out_line;
s->dsp.filter_scale(out_pixel, work_pixel, linesize, max);
/* move on to next line */
y_out += 2;
out_line += dst_line_stride * 2;
}
return 0;
}
static int deinterlace_slice(AVFilterContext *ctx, void *arg,
int jobnr, int nb_jobs)
{
W3FDIFContext *s = ctx->priv;
for (int p = 0; p < s->nb_planes; p++)
deinterlace_plane_slice(ctx, arg, jobnr, nb_jobs, p);
return 0;
}
static int filter(AVFilterContext *ctx, int is_second)
{
W3FDIFContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out, *adj;
ThreadData td;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out)
return AVERROR(ENOMEM);
av_frame_copy_props(out, s->cur);
#if FF_API_INTERLACED_FRAME
FF_DISABLE_DEPRECATION_WARNINGS
out->interlaced_frame = 0;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
out->flags &= ~AV_FRAME_FLAG_INTERLACED;
if (!is_second) {
if (out->pts != AV_NOPTS_VALUE)
out->pts *= 2;
} else {
int64_t cur_pts = s->cur->pts;
int64_t next_pts = s->next->pts;
if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
out->pts = cur_pts + next_pts;
} else {
out->pts = AV_NOPTS_VALUE;
}
}
adj = s->field ? s->next : s->prev;
td.out = out; td.cur = s->cur; td.adj = adj;
ff_filter_execute(ctx, deinterlace_slice, &td, NULL,
FFMIN(s->planeheight[1], s->nb_threads));
if (s->mode)
s->field = !s->field;
return ff_filter_frame(outlink, out);
}
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
AVFilterContext *ctx = inlink->dst;
W3FDIFContext *s = ctx->priv;
int ret;
av_frame_free(&s->prev);
s->prev = s->cur;
s->cur = s->next;
s->next = frame;
if (!s->cur) {
s->cur = av_frame_clone(s->next);
if (!s->cur)
return AVERROR(ENOMEM);
}
if (!s->prev)
return 0;
if ((s->deint && !(s->cur->flags & AV_FRAME_FLAG_INTERLACED)) || ctx->is_disabled) {
AVFrame *out = av_frame_clone(s->cur);
if (!out)
return AVERROR(ENOMEM);
av_frame_free(&s->prev);
if (out->pts != AV_NOPTS_VALUE)
out->pts *= 2;
return ff_filter_frame(ctx->outputs[0], out);
}
ret = filter(ctx, 0);
if (ret < 0 || s->mode == 0)
return ret;
return filter(ctx, 1);
}
static int request_frame(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
W3FDIFContext *s = ctx->priv;
int ret;
if (s->eof)
return AVERROR_EOF;
ret = ff_request_frame(ctx->inputs[0]);
if (ret == AVERROR_EOF && s->cur) {
AVFrame *next = av_frame_clone(s->next);
if (!next)
return AVERROR(ENOMEM);
next->pts = s->next->pts * 2 - s->cur->pts;
filter_frame(ctx->inputs[0], next);
s->eof = 1;
} else if (ret < 0) {
return ret;
}
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
{
W3FDIFContext *s = ctx->priv;
int i;
av_frame_free(&s->prev);
av_frame_free(&s->cur );
av_frame_free(&s->next);
for (i = 0; i < s->nb_threads; i++)
av_freep(&s->work_line[i]);
av_freep(&s->work_line);
}
static const AVFilterPad w3fdif_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
.config_props = config_input,
},
};
static const AVFilterPad w3fdif_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
.request_frame = request_frame,
},
};
const AVFilter ff_vf_w3fdif = {
.name = "w3fdif",
.description = NULL_IF_CONFIG_SMALL("Apply Martin Weston three field deinterlace."),
.priv_size = sizeof(W3FDIFContext),
.priv_class = &w3fdif_class,
.uninit = uninit,
FILTER_INPUTS(w3fdif_inputs),
FILTER_OUTPUTS(w3fdif_outputs),
FILTER_PIXFMTS_ARRAY(pix_fmts),
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
.process_command = ff_filter_process_command,
};
Reference in New Issue View Git Blame Copy Permalink