mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-03-23 04:24:35 +02:00
avfilter: add premultiply filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
parent
6427c9ffee
commit
6e713841e8
@ -5,6 +5,7 @@ version <next>:
|
||||
- CrystalHD decoder moved to new decode API
|
||||
- add internal ebur128 library, remove external libebur128 dependency
|
||||
- Pro-MPEG CoP #3-R2 FEC protocol
|
||||
- premultiply video filter
|
||||
|
||||
version 3.2:
|
||||
- libopenmpt demuxer
|
||||
|
||||
@ -10983,6 +10983,12 @@ Set medium thresholding (good results, default).
|
||||
@end table
|
||||
@end table
|
||||
|
||||
@section premultiply
|
||||
Apply alpha premultiply effect to input video stream using first plane
|
||||
of second stream as alpha.
|
||||
|
||||
Both streams must have same dimensions and same pixel format.
|
||||
|
||||
@section prewitt
|
||||
Apply prewitt operator to input video stream.
|
||||
|
||||
|
||||
@ -240,6 +240,7 @@ OBJS-$(CONFIG_PHASE_FILTER) += vf_phase.o
|
||||
OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o
|
||||
OBJS-$(CONFIG_PP_FILTER) += vf_pp.o
|
||||
OBJS-$(CONFIG_PP7_FILTER) += vf_pp7.o
|
||||
OBJS-$(CONFIG_PREMULTIPLY_FILTER) += vf_premultiply.o framesync.o
|
||||
OBJS-$(CONFIG_PREWITT_FILTER) += vf_convolution.o
|
||||
OBJS-$(CONFIG_PSNR_FILTER) += vf_psnr.o dualinput.o framesync.o
|
||||
OBJS-$(CONFIG_PULLUP_FILTER) += vf_pullup.o
|
||||
|
||||
@ -256,6 +256,7 @@ void avfilter_register_all(void)
|
||||
REGISTER_FILTER(PIXDESCTEST, pixdesctest, vf);
|
||||
REGISTER_FILTER(PP, pp, vf);
|
||||
REGISTER_FILTER(PP7, pp7, vf);
|
||||
REGISTER_FILTER(PREMULTIPLY, premultiply, vf);
|
||||
REGISTER_FILTER(PREWITT, prewitt, vf);
|
||||
REGISTER_FILTER(PSNR, psnr, vf);
|
||||
REGISTER_FILTER(PULLUP, pullup, vf);
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
#include "libavutil/version.h"
|
||||
|
||||
#define LIBAVFILTER_VERSION_MAJOR 6
|
||||
#define LIBAVFILTER_VERSION_MINOR 67
|
||||
#define LIBAVFILTER_VERSION_MINOR 68
|
||||
#define LIBAVFILTER_VERSION_MICRO 100
|
||||
|
||||
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
|
||||
|
||||
409
libavfilter/vf_premultiply.c
Normal file
409
libavfilter/vf_premultiply.c
Normal file
@ -0,0 +1,409 @@
|
||||
/*
|
||||
* Copyright (c) 2016 Paul B Mahol
|
||||
*
|
||||
* 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/imgutils.h"
|
||||
#include "libavutil/pixdesc.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "avfilter.h"
|
||||
#include "formats.h"
|
||||
#include "framesync.h"
|
||||
#include "internal.h"
|
||||
#include "video.h"
|
||||
|
||||
typedef struct PreMultiplyContext {
|
||||
const AVClass *class;
|
||||
int width[4], height[4];
|
||||
int nb_planes;
|
||||
int planes;
|
||||
int half, depth, offset;
|
||||
FFFrameSync fs;
|
||||
|
||||
void (*premultiply[4])(const uint8_t *msrc, const uint8_t *asrc,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset);
|
||||
} PreMultiplyContext;
|
||||
|
||||
#define OFFSET(x) offsetof(PreMultiplyContext, x)
|
||||
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
||||
|
||||
static const AVOption premultiply_options[] = {
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFILTER_DEFINE_CLASS(premultiply);
|
||||
|
||||
static int query_formats(AVFilterContext *ctx)
|
||||
{
|
||||
static const enum AVPixelFormat pix_fmts[] = {
|
||||
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
|
||||
AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10,
|
||||
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
|
||||
AV_PIX_FMT_YUV444P16,
|
||||
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
|
||||
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
|
||||
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
|
||||
AV_PIX_FMT_NONE
|
||||
};
|
||||
|
||||
return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
||||
}
|
||||
|
||||
static void premultiply8(const uint8_t *msrc, const uint8_t *asrc,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset)
|
||||
{
|
||||
int x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
dst[x] = ((msrc[x] * (((asrc[x] >> 1) & 1) + asrc[x])) + 128) >> 8;
|
||||
}
|
||||
|
||||
dst += dlinesize;
|
||||
msrc += mlinesize;
|
||||
asrc += alinesize;
|
||||
}
|
||||
}
|
||||
|
||||
static void premultiply8yuv(const uint8_t *msrc, const uint8_t *asrc,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset)
|
||||
{
|
||||
int x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
dst[x] = ((((msrc[x] - 128) * (((asrc[x] >> 1) & 1) + asrc[x]))) >> 8) + 128;;
|
||||
}
|
||||
|
||||
dst += dlinesize;
|
||||
msrc += mlinesize;
|
||||
asrc += alinesize;
|
||||
}
|
||||
}
|
||||
|
||||
static void premultiply8offset(const uint8_t *msrc, const uint8_t *asrc,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset)
|
||||
{
|
||||
int x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
dst[x] = ((((msrc[x] - offset) * (((asrc[x] >> 1) & 1) + asrc[x])) + 128) >> 8) + offset;
|
||||
}
|
||||
|
||||
dst += dlinesize;
|
||||
msrc += mlinesize;
|
||||
asrc += alinesize;
|
||||
}
|
||||
}
|
||||
|
||||
static void premultiply16(const uint8_t *mmsrc, const uint8_t *aasrc,
|
||||
uint8_t *ddst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset)
|
||||
{
|
||||
const uint16_t *msrc = (const uint16_t *)mmsrc;
|
||||
const uint16_t *asrc = (const uint16_t *)aasrc;
|
||||
uint16_t *dst = (uint16_t *)ddst;
|
||||
int x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
dst[x] = ((msrc[x] * (((asrc[x] >> 1) & 1) + asrc[x])) + half) >> shift;
|
||||
}
|
||||
|
||||
dst += dlinesize / 2;
|
||||
msrc += mlinesize / 2;
|
||||
asrc += alinesize / 2;
|
||||
}
|
||||
}
|
||||
|
||||
static void premultiply16yuv(const uint8_t *mmsrc, const uint8_t *aasrc,
|
||||
uint8_t *ddst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset)
|
||||
{
|
||||
const uint16_t *msrc = (const uint16_t *)mmsrc;
|
||||
const uint16_t *asrc = (const uint16_t *)aasrc;
|
||||
uint16_t *dst = (uint16_t *)ddst;
|
||||
int x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
dst[x] = ((((msrc[x] - half) * (((asrc[x] >> 1) & 1) + asrc[x]))) >> shift) + half;;
|
||||
}
|
||||
|
||||
dst += dlinesize / 2;
|
||||
msrc += mlinesize / 2;
|
||||
asrc += alinesize / 2;
|
||||
}
|
||||
}
|
||||
|
||||
static void premultiply16offset(const uint8_t *mmsrc, const uint8_t *aasrc,
|
||||
uint8_t *ddst,
|
||||
ptrdiff_t mlinesize, ptrdiff_t alinesize,
|
||||
ptrdiff_t dlinesize,
|
||||
int w, int h,
|
||||
int half, int shift, int offset)
|
||||
{
|
||||
const uint16_t *msrc = (const uint16_t *)mmsrc;
|
||||
const uint16_t *asrc = (const uint16_t *)aasrc;
|
||||
uint16_t *dst = (uint16_t *)ddst;
|
||||
int x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
dst[x] = ((((msrc[x] - offset) * (((asrc[x] >> 1) & 1) + asrc[x])) + half) >> shift) + offset;
|
||||
}
|
||||
|
||||
dst += dlinesize / 2;
|
||||
msrc += mlinesize / 2;
|
||||
asrc += alinesize / 2;
|
||||
}
|
||||
}
|
||||
|
||||
static int process_frame(FFFrameSync *fs)
|
||||
{
|
||||
AVFilterContext *ctx = fs->parent;
|
||||
PreMultiplyContext *s = fs->opaque;
|
||||
AVFilterLink *outlink = ctx->outputs[0];
|
||||
AVFrame *out, *base, *alpha;
|
||||
int ret;
|
||||
|
||||
if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
|
||||
(ret = ff_framesync_get_frame(&s->fs, 1, &alpha, 0)) < 0)
|
||||
return ret;
|
||||
|
||||
if (ctx->is_disabled) {
|
||||
out = av_frame_clone(base);
|
||||
if (!out)
|
||||
return AVERROR(ENOMEM);
|
||||
} else {
|
||||
int p, full, limited;
|
||||
|
||||
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
||||
if (!out)
|
||||
return AVERROR(ENOMEM);
|
||||
av_frame_copy_props(out, base);
|
||||
|
||||
full = base->color_range == AVCOL_RANGE_JPEG;
|
||||
limited = base->color_range == AVCOL_RANGE_MPEG;
|
||||
|
||||
switch (outlink->format) {
|
||||
case AV_PIX_FMT_YUV444P:
|
||||
s->premultiply[0] = full ? premultiply8 : premultiply8offset;
|
||||
s->premultiply[1] = premultiply8yuv;
|
||||
s->premultiply[2] = premultiply8yuv;
|
||||
break;
|
||||
case AV_PIX_FMT_YUVJ444P:
|
||||
s->premultiply[0] = premultiply8;
|
||||
s->premultiply[1] = premultiply8yuv;
|
||||
s->premultiply[2] = premultiply8yuv;
|
||||
break;
|
||||
case AV_PIX_FMT_GBRP:
|
||||
s->premultiply[0] = limited ? premultiply8offset : premultiply8;
|
||||
s->premultiply[1] = limited ? premultiply8offset : premultiply8;
|
||||
s->premultiply[2] = limited ? premultiply8offset : premultiply8;
|
||||
break;
|
||||
case AV_PIX_FMT_YUV444P9:
|
||||
case AV_PIX_FMT_YUV444P10:
|
||||
case AV_PIX_FMT_YUV444P12:
|
||||
case AV_PIX_FMT_YUV444P14:
|
||||
case AV_PIX_FMT_YUV444P16:
|
||||
s->premultiply[0] = full ? premultiply16 : premultiply16offset;
|
||||
s->premultiply[1] = premultiply16yuv;
|
||||
s->premultiply[2] = premultiply16yuv;
|
||||
break;
|
||||
case AV_PIX_FMT_GBRP9:
|
||||
case AV_PIX_FMT_GBRP10:
|
||||
case AV_PIX_FMT_GBRP12:
|
||||
case AV_PIX_FMT_GBRP14:
|
||||
case AV_PIX_FMT_GBRP16:
|
||||
s->premultiply[0] = limited ? premultiply16offset : premultiply16;
|
||||
s->premultiply[1] = limited ? premultiply16offset : premultiply16;
|
||||
s->premultiply[2] = limited ? premultiply16offset : premultiply16;
|
||||
break;
|
||||
case AV_PIX_FMT_GRAY8:
|
||||
s->premultiply[0] = limited ? premultiply8offset : premultiply8;
|
||||
break;
|
||||
case AV_PIX_FMT_GRAY10:
|
||||
case AV_PIX_FMT_GRAY12:
|
||||
case AV_PIX_FMT_GRAY16:
|
||||
s->premultiply[0] = limited ? premultiply16offset : premultiply16;
|
||||
break;
|
||||
}
|
||||
|
||||
for (p = 0; p < s->nb_planes; p++) {
|
||||
s->premultiply[p](base->data[p], alpha->data[0],
|
||||
out->data[p],
|
||||
base->linesize[p], alpha->linesize[0],
|
||||
out->linesize[p],
|
||||
s->width[p], s->height[p],
|
||||
s->half, s->depth, s->offset);
|
||||
}
|
||||
}
|
||||
out->pts = av_rescale_q(base->pts, s->fs.time_base, outlink->time_base);
|
||||
|
||||
return ff_filter_frame(outlink, out);
|
||||
}
|
||||
|
||||
static int config_input(AVFilterLink *inlink)
|
||||
{
|
||||
AVFilterContext *ctx = inlink->dst;
|
||||
PreMultiplyContext *s = ctx->priv;
|
||||
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
||||
int vsub, hsub;
|
||||
|
||||
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
||||
|
||||
hsub = desc->log2_chroma_w;
|
||||
vsub = desc->log2_chroma_h;
|
||||
s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
|
||||
s->height[0] = s->height[3] = inlink->h;
|
||||
s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
|
||||
s->width[0] = s->width[3] = inlink->w;
|
||||
|
||||
s->depth = desc->comp[0].depth;
|
||||
s->half = (1 << s->depth) / 2;
|
||||
s->offset = 16 << (s->depth - 8);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int config_output(AVFilterLink *outlink)
|
||||
{
|
||||
AVFilterContext *ctx = outlink->src;
|
||||
PreMultiplyContext *s = ctx->priv;
|
||||
AVFilterLink *base = ctx->inputs[0];
|
||||
AVFilterLink *alpha = ctx->inputs[1];
|
||||
FFFrameSyncIn *in;
|
||||
int ret;
|
||||
|
||||
if (base->format != alpha->format) {
|
||||
av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
if (base->w != alpha->w ||
|
||||
base->h != alpha->h) {
|
||||
av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
|
||||
"(size %dx%d) do not match the corresponding "
|
||||
"second input link %s parameters (%dx%d) ",
|
||||
ctx->input_pads[0].name, base->w, base->h,
|
||||
ctx->input_pads[1].name, alpha->w, alpha->h);
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
outlink->w = base->w;
|
||||
outlink->h = base->h;
|
||||
outlink->time_base = base->time_base;
|
||||
outlink->sample_aspect_ratio = base->sample_aspect_ratio;
|
||||
outlink->frame_rate = base->frame_rate;
|
||||
|
||||
if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
|
||||
return ret;
|
||||
|
||||
in = s->fs.in;
|
||||
in[0].time_base = base->time_base;
|
||||
in[1].time_base = alpha->time_base;
|
||||
in[0].sync = 1;
|
||||
in[0].before = EXT_STOP;
|
||||
in[0].after = EXT_INFINITY;
|
||||
in[1].sync = 1;
|
||||
in[1].before = EXT_STOP;
|
||||
in[1].after = EXT_INFINITY;
|
||||
s->fs.opaque = s;
|
||||
s->fs.on_event = process_frame;
|
||||
|
||||
return ff_framesync_configure(&s->fs);
|
||||
}
|
||||
|
||||
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
|
||||
{
|
||||
PreMultiplyContext *s = inlink->dst->priv;
|
||||
return ff_framesync_filter_frame(&s->fs, inlink, buf);
|
||||
}
|
||||
|
||||
static int request_frame(AVFilterLink *outlink)
|
||||
{
|
||||
PreMultiplyContext *s = outlink->src->priv;
|
||||
return ff_framesync_request_frame(&s->fs, outlink);
|
||||
}
|
||||
|
||||
static av_cold void uninit(AVFilterContext *ctx)
|
||||
{
|
||||
PreMultiplyContext *s = ctx->priv;
|
||||
|
||||
ff_framesync_uninit(&s->fs);
|
||||
}
|
||||
|
||||
static const AVFilterPad premultiply_inputs[] = {
|
||||
{
|
||||
.name = "main",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
.config_props = config_input,
|
||||
},
|
||||
{
|
||||
.name = "alpha",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
static const AVFilterPad premultiply_outputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = config_output,
|
||||
.request_frame = request_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFilter ff_vf_premultiply = {
|
||||
.name = "premultiply",
|
||||
.description = NULL_IF_CONFIG_SMALL("PreMultiply first stream with first plane of second stream."),
|
||||
.priv_size = sizeof(PreMultiplyContext),
|
||||
.uninit = uninit,
|
||||
.query_formats = query_formats,
|
||||
.inputs = premultiply_inputs,
|
||||
.outputs = premultiply_outputs,
|
||||
.priv_class = &premultiply_class,
|
||||
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
|
||||
};
|
||||
Loading…
x
Reference in New Issue
Block a user