753 lines
25 KiB
C
753 lines
25 KiB
C
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/*
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* Copyright (c) 2016 Paul B Mahol
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*
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* This file is part of FFmpeg.
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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/imgutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/opt.h"
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#include "avfilter.h"
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#include "filters.h"
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#include "formats.h"
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#include "framesync.h"
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#include "internal.h"
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#include "video.h"
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typedef struct ThreadData {
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AVFrame *m, *a, *d;
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} ThreadData;
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typedef struct PreMultiplyContext {
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const AVClass *class;
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int width[4], height[4];
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int linesize[4];
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int nb_planes;
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int planes;
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int inverse;
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int inplace;
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int half, depth, offset, max;
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FFFrameSync fs;
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void (*premultiply[4])(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset);
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} PreMultiplyContext;
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#define OFFSET(x) offsetof(PreMultiplyContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption options[] = {
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{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
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{ "inplace","enable inplace mode", OFFSET(inplace), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
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{ NULL }
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};
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#define premultiply_options options
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AVFILTER_DEFINE_CLASS(premultiply);
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static int query_formats(AVFilterContext *ctx)
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{
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PreMultiplyContext *s = ctx->priv;
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static const enum AVPixelFormat no_alpha_pix_fmts[] = {
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
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AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat alpha_pix_fmts[] = {
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AV_PIX_FMT_YUVA444P,
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AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
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AV_PIX_FMT_GBRAP,
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AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
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AV_PIX_FMT_NONE
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};
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return ff_set_common_formats(ctx, ff_make_format_list(s->inplace ? alpha_pix_fmts : no_alpha_pix_fmts));
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}
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static void premultiply8(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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dst[x] = ((msrc[x] * (((asrc[x] >> 1) & 1) + asrc[x])) + 128) >> 8;
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}
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dst += dlinesize;
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msrc += mlinesize;
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asrc += alinesize;
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}
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}
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static void premultiply8yuv(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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dst[x] = ((((msrc[x] - 128) * (((asrc[x] >> 1) & 1) + asrc[x]))) >> 8) + 128;
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}
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dst += dlinesize;
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msrc += mlinesize;
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asrc += alinesize;
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}
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}
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static void premultiply8offset(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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dst[x] = ((((msrc[x] - offset) * (((asrc[x] >> 1) & 1) + asrc[x])) + 128) >> 8) + offset;
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}
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dst += dlinesize;
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msrc += mlinesize;
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asrc += alinesize;
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}
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}
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static void premultiply16(const uint8_t *mmsrc, const uint8_t *aasrc,
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uint8_t *ddst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset)
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{
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const uint16_t *msrc = (const uint16_t *)mmsrc;
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const uint16_t *asrc = (const uint16_t *)aasrc;
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uint16_t *dst = (uint16_t *)ddst;
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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dst[x] = ((msrc[x] * (((asrc[x] >> 1) & 1) + asrc[x])) + half) >> shift;
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}
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dst += dlinesize / 2;
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msrc += mlinesize / 2;
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asrc += alinesize / 2;
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}
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}
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static void premultiply16yuv(const uint8_t *mmsrc, const uint8_t *aasrc,
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uint8_t *ddst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset)
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{
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const uint16_t *msrc = (const uint16_t *)mmsrc;
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const uint16_t *asrc = (const uint16_t *)aasrc;
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uint16_t *dst = (uint16_t *)ddst;
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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dst[x] = ((((msrc[x] - half) * (int64_t)(((asrc[x] >> 1) & 1) + asrc[x]))) >> shift) + half;
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}
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dst += dlinesize / 2;
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msrc += mlinesize / 2;
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asrc += alinesize / 2;
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}
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}
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static void premultiply16offset(const uint8_t *mmsrc, const uint8_t *aasrc,
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uint8_t *ddst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift, int offset)
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{
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const uint16_t *msrc = (const uint16_t *)mmsrc;
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const uint16_t *asrc = (const uint16_t *)aasrc;
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uint16_t *dst = (uint16_t *)ddst;
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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dst[x] = ((((msrc[x] - offset) * (int64_t)(((asrc[x] >> 1) & 1) + asrc[x])) + half) >> shift) + offset;
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}
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dst += dlinesize / 2;
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msrc += mlinesize / 2;
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asrc += alinesize / 2;
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}
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}
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static void unpremultiply8(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int max, int offset)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (asrc[x] > 0 && asrc[x] < 255)
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dst[x] = FFMIN(msrc[x] * 255 / asrc[x], 255);
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else
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dst[x] = msrc[x];
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}
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dst += dlinesize;
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msrc += mlinesize;
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asrc += alinesize;
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}
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}
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static void unpremultiply8yuv(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int max, int offset)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (asrc[x] > 0 && asrc[x] < 255)
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dst[x] = FFMIN((msrc[x] - 128) * 255 / asrc[x] + 128, 255);
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else
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dst[x] = msrc[x];
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}
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dst += dlinesize;
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msrc += mlinesize;
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asrc += alinesize;
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}
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}
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static void unpremultiply8offset(const uint8_t *msrc, const uint8_t *asrc,
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uint8_t *dst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int max, int offset)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (asrc[x] > 0 && asrc[x] < 255)
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dst[x] = FFMIN(FFMAX(msrc[x] - offset, 0) * 255 / asrc[x] + offset, 255);
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else
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dst[x] = msrc[x];
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}
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dst += dlinesize;
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msrc += mlinesize;
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asrc += alinesize;
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}
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}
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static void unpremultiply16(const uint8_t *mmsrc, const uint8_t *aasrc,
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uint8_t *ddst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int max, int offset)
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{
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const uint16_t *msrc = (const uint16_t *)mmsrc;
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const uint16_t *asrc = (const uint16_t *)aasrc;
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uint16_t *dst = (uint16_t *)ddst;
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (asrc[x] > 0 && asrc[x] < max)
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dst[x] = FFMIN(msrc[x] * (unsigned)max / asrc[x], max);
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else
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dst[x] = msrc[x];
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}
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dst += dlinesize / 2;
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msrc += mlinesize / 2;
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asrc += alinesize / 2;
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}
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}
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static void unpremultiply16yuv(const uint8_t *mmsrc, const uint8_t *aasrc,
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uint8_t *ddst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int max, int offset)
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{
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const uint16_t *msrc = (const uint16_t *)mmsrc;
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const uint16_t *asrc = (const uint16_t *)aasrc;
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uint16_t *dst = (uint16_t *)ddst;
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (asrc[x] > 0 && asrc[x] < max)
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dst[x] = FFMAX(FFMIN((msrc[x] - half) * max / asrc[x], half - 1), -half) + half;
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else
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dst[x] = msrc[x];
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}
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dst += dlinesize / 2;
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msrc += mlinesize / 2;
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asrc += alinesize / 2;
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}
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}
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static void unpremultiply16offset(const uint8_t *mmsrc, const uint8_t *aasrc,
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uint8_t *ddst,
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ptrdiff_t mlinesize, ptrdiff_t alinesize,
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ptrdiff_t dlinesize,
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int w, int h,
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int half, int max, int offset)
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|
|
{
|
||
|
|
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++) {
|
||
|
|
if (asrc[x] > 0 && asrc[x] < max)
|
||
|
|
dst[x] = FFMAX(FFMIN(FFMAX(msrc[x] - offset, 0) * (unsigned)max / asrc[x] + offset, max), 0);
|
||
|
|
else
|
||
|
|
dst[x] = msrc[x];
|
||
|
|
}
|
||
|
|
|
||
|
|
dst += dlinesize / 2;
|
||
|
|
msrc += mlinesize / 2;
|
||
|
|
asrc += alinesize / 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int premultiply_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
|
||
|
|
{
|
||
|
|
PreMultiplyContext *s = ctx->priv;
|
||
|
|
ThreadData *td = arg;
|
||
|
|
AVFrame *out = td->d;
|
||
|
|
AVFrame *alpha = td->a;
|
||
|
|
AVFrame *base = td->m;
|
||
|
|
int p;
|
||
|
|
|
||
|
|
for (p = 0; p < s->nb_planes; p++) {
|
||
|
|
const int slice_start = (s->height[p] * jobnr) / nb_jobs;
|
||
|
|
const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs;
|
||
|
|
|
||
|
|
if (!((1 << p) & s->planes) || p == 3) {
|
||
|
|
av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
|
||
|
|
out->linesize[p],
|
||
|
|
base->data[p] + slice_start * base->linesize[p],
|
||
|
|
base->linesize[p],
|
||
|
|
s->linesize[p], slice_end - slice_start);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
s->premultiply[p](base->data[p] + slice_start * base->linesize[p],
|
||
|
|
s->inplace ? alpha->data[3] + slice_start * alpha->linesize[3] :
|
||
|
|
alpha->data[0] + slice_start * alpha->linesize[0],
|
||
|
|
out->data[p] + slice_start * out->linesize[p],
|
||
|
|
base->linesize[p], s->inplace ? alpha->linesize[3] : alpha->linesize[0],
|
||
|
|
out->linesize[p],
|
||
|
|
s->width[p], slice_end - slice_start,
|
||
|
|
s->half, s->inverse ? s->max : s->depth, s->offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int filter_frame(AVFilterContext *ctx,
|
||
|
|
AVFrame **out, AVFrame *base, AVFrame *alpha)
|
||
|
|
{
|
||
|
|
PreMultiplyContext *s = ctx->priv;
|
||
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
||
|
|
|
||
|
|
if (ctx->is_disabled) {
|
||
|
|
*out = av_frame_clone(base);
|
||
|
|
if (!*out)
|
||
|
|
return AVERROR(ENOMEM);
|
||
|
|
} else {
|
||
|
|
ThreadData td;
|
||
|
|
int 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;
|
||
|
|
|
||
|
|
if (s->inverse) {
|
||
|
|
switch (outlink->format) {
|
||
|
|
case AV_PIX_FMT_YUV444P:
|
||
|
|
case AV_PIX_FMT_YUVA444P:
|
||
|
|
s->premultiply[0] = full ? unpremultiply8 : unpremultiply8offset;
|
||
|
|
s->premultiply[1] = s->premultiply[2] = unpremultiply8yuv;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_YUVJ444P:
|
||
|
|
s->premultiply[0] = unpremultiply8;
|
||
|
|
s->premultiply[1] = s->premultiply[2] = unpremultiply8yuv;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GBRP:
|
||
|
|
case AV_PIX_FMT_GBRAP:
|
||
|
|
s->premultiply[0] = s->premultiply[1] = s->premultiply[2] = limited ? unpremultiply8offset : unpremultiply8;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_YUV444P9:
|
||
|
|
case AV_PIX_FMT_YUVA444P9:
|
||
|
|
case AV_PIX_FMT_YUV444P10:
|
||
|
|
case AV_PIX_FMT_YUVA444P10:
|
||
|
|
case AV_PIX_FMT_YUV444P12:
|
||
|
|
case AV_PIX_FMT_YUV444P14:
|
||
|
|
case AV_PIX_FMT_YUV444P16:
|
||
|
|
case AV_PIX_FMT_YUVA444P16:
|
||
|
|
s->premultiply[0] = full ? unpremultiply16 : unpremultiply16offset;
|
||
|
|
s->premultiply[1] = s->premultiply[2] = unpremultiply16yuv;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GBRP9:
|
||
|
|
case AV_PIX_FMT_GBRP10:
|
||
|
|
case AV_PIX_FMT_GBRAP10:
|
||
|
|
case AV_PIX_FMT_GBRP12:
|
||
|
|
case AV_PIX_FMT_GBRAP12:
|
||
|
|
case AV_PIX_FMT_GBRP14:
|
||
|
|
case AV_PIX_FMT_GBRP16:
|
||
|
|
case AV_PIX_FMT_GBRAP16:
|
||
|
|
s->premultiply[0] = s->premultiply[1] = s->premultiply[2] = limited ? unpremultiply16offset : unpremultiply16;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GRAY8:
|
||
|
|
s->premultiply[0] = limited ? unpremultiply8offset : unpremultiply8;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GRAY9:
|
||
|
|
case AV_PIX_FMT_GRAY10:
|
||
|
|
case AV_PIX_FMT_GRAY12:
|
||
|
|
case AV_PIX_FMT_GRAY14:
|
||
|
|
case AV_PIX_FMT_GRAY16:
|
||
|
|
s->premultiply[0] = limited ? unpremultiply16offset : unpremultiply16;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
switch (outlink->format) {
|
||
|
|
case AV_PIX_FMT_YUV444P:
|
||
|
|
case AV_PIX_FMT_YUVA444P:
|
||
|
|
s->premultiply[0] = full ? premultiply8 : premultiply8offset;
|
||
|
|
s->premultiply[1] = s->premultiply[2] = premultiply8yuv;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_YUVJ444P:
|
||
|
|
s->premultiply[0] = premultiply8;
|
||
|
|
s->premultiply[1] = s->premultiply[2] = premultiply8yuv;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GBRP:
|
||
|
|
case AV_PIX_FMT_GBRAP:
|
||
|
|
s->premultiply[0] = s->premultiply[1] = s->premultiply[2] = limited ? premultiply8offset : premultiply8;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_YUV444P9:
|
||
|
|
case AV_PIX_FMT_YUVA444P9:
|
||
|
|
case AV_PIX_FMT_YUV444P10:
|
||
|
|
case AV_PIX_FMT_YUVA444P10:
|
||
|
|
case AV_PIX_FMT_YUV444P12:
|
||
|
|
case AV_PIX_FMT_YUV444P14:
|
||
|
|
case AV_PIX_FMT_YUV444P16:
|
||
|
|
case AV_PIX_FMT_YUVA444P16:
|
||
|
|
s->premultiply[0] = full ? premultiply16 : premultiply16offset;
|
||
|
|
s->premultiply[1] = s->premultiply[2] = premultiply16yuv;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GBRP9:
|
||
|
|
case AV_PIX_FMT_GBRP10:
|
||
|
|
case AV_PIX_FMT_GBRAP10:
|
||
|
|
case AV_PIX_FMT_GBRP12:
|
||
|
|
case AV_PIX_FMT_GBRAP12:
|
||
|
|
case AV_PIX_FMT_GBRP14:
|
||
|
|
case AV_PIX_FMT_GBRP16:
|
||
|
|
case AV_PIX_FMT_GBRAP16:
|
||
|
|
s->premultiply[0] = s->premultiply[1] = s->premultiply[2] = limited ? premultiply16offset : premultiply16;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GRAY8:
|
||
|
|
s->premultiply[0] = limited ? premultiply8offset : premultiply8;
|
||
|
|
break;
|
||
|
|
case AV_PIX_FMT_GRAY9:
|
||
|
|
case AV_PIX_FMT_GRAY10:
|
||
|
|
case AV_PIX_FMT_GRAY12:
|
||
|
|
case AV_PIX_FMT_GRAY14:
|
||
|
|
case AV_PIX_FMT_GRAY16:
|
||
|
|
s->premultiply[0] = limited ? premultiply16offset : premultiply16;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
td.d = *out;
|
||
|
|
td.a = alpha;
|
||
|
|
td.m = base;
|
||
|
|
ctx->internal->execute(ctx, premultiply_slice, &td, NULL, FFMIN(s->height[0],
|
||
|
|
ff_filter_get_nb_threads(ctx)));
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int process_frame(FFFrameSync *fs)
|
||
|
|
{
|
||
|
|
AVFilterContext *ctx = fs->parent;
|
||
|
|
PreMultiplyContext *s = fs->opaque;
|
||
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
||
|
|
AVFrame *out = NULL, *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 ((ret = filter_frame(ctx, &out, base, alpha)) < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
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, ret;
|
||
|
|
|
||
|
|
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
||
|
|
|
||
|
|
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
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->max = (1 << s->depth) - 1;
|
||
|
|
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;
|
||
|
|
FFFrameSyncIn *in;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (!s->inplace) {
|
||
|
|
alpha = ctx->inputs[1];
|
||
|
|
|
||
|
|
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 (s->inplace)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
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 activate(AVFilterContext *ctx)
|
||
|
|
{
|
||
|
|
PreMultiplyContext *s = ctx->priv;
|
||
|
|
|
||
|
|
if (s->inplace) {
|
||
|
|
AVFrame *frame = NULL;
|
||
|
|
AVFrame *out = NULL;
|
||
|
|
int ret, status;
|
||
|
|
int64_t pts;
|
||
|
|
|
||
|
|
FF_FILTER_FORWARD_STATUS_BACK_ALL(ctx->outputs[0], ctx);
|
||
|
|
|
||
|
|
if ((ret = ff_inlink_consume_frame(ctx->inputs[0], &frame)) > 0) {
|
||
|
|
ret = filter_frame(ctx, &out, frame, frame);
|
||
|
|
av_frame_free(&frame);
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
ret = ff_filter_frame(ctx->outputs[0], out);
|
||
|
|
}
|
||
|
|
if (ret < 0) {
|
||
|
|
return ret;
|
||
|
|
} else if (ff_inlink_acknowledge_status(ctx->inputs[0], &status, &pts)) {
|
||
|
|
ff_outlink_set_status(ctx->outputs[0], status, pts);
|
||
|
|
return 0;
|
||
|
|
} else {
|
||
|
|
if (ff_outlink_frame_wanted(ctx->outputs[0]))
|
||
|
|
ff_inlink_request_frame(ctx->inputs[0]);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return ff_framesync_activate(&s->fs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static av_cold int init(AVFilterContext *ctx)
|
||
|
|
{
|
||
|
|
PreMultiplyContext *s = ctx->priv;
|
||
|
|
AVFilterPad pad = { 0 };
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (!strcmp(ctx->filter->name, "unpremultiply"))
|
||
|
|
s->inverse = 1;
|
||
|
|
|
||
|
|
pad.type = AVMEDIA_TYPE_VIDEO;
|
||
|
|
pad.name = "main";
|
||
|
|
pad.config_props = config_input;
|
||
|
|
|
||
|
|
if ((ret = ff_insert_inpad(ctx, 0, &pad)) < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
if (!s->inplace) {
|
||
|
|
pad.type = AVMEDIA_TYPE_VIDEO;
|
||
|
|
pad.name = "alpha";
|
||
|
|
pad.config_props = NULL;
|
||
|
|
|
||
|
|
if ((ret = ff_insert_inpad(ctx, 1, &pad)) < 0)
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
||
|
|
{
|
||
|
|
PreMultiplyContext *s = ctx->priv;
|
||
|
|
|
||
|
|
if (!s->inplace)
|
||
|
|
ff_framesync_uninit(&s->fs);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const AVFilterPad premultiply_outputs[] = {
|
||
|
|
{
|
||
|
|
.name = "default",
|
||
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
||
|
|
.config_props = config_output,
|
||
|
|
},
|
||
|
|
{ NULL }
|
||
|
|
};
|
||
|
|
|
||
|
|
#if CONFIG_PREMULTIPLY_FILTER
|
||
|
|
|
||
|
|
AVFilter ff_vf_premultiply = {
|
||
|
|
.name = "premultiply",
|
||
|
|
.description = NULL_IF_CONFIG_SMALL("PreMultiply first stream with first plane of second stream."),
|
||
|
|
.priv_size = sizeof(PreMultiplyContext),
|
||
|
|
.init = init,
|
||
|
|
.uninit = uninit,
|
||
|
|
.query_formats = query_formats,
|
||
|
|
.activate = activate,
|
||
|
|
.inputs = NULL,
|
||
|
|
.outputs = premultiply_outputs,
|
||
|
|
.priv_class = &premultiply_class,
|
||
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
|
||
|
|
AVFILTER_FLAG_DYNAMIC_INPUTS |
|
||
|
|
AVFILTER_FLAG_SLICE_THREADS,
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* CONFIG_PREMULTIPLY_FILTER */
|
||
|
|
|
||
|
|
#if CONFIG_UNPREMULTIPLY_FILTER
|
||
|
|
|
||
|
|
#define unpremultiply_options options
|
||
|
|
AVFILTER_DEFINE_CLASS(unpremultiply);
|
||
|
|
|
||
|
|
AVFilter ff_vf_unpremultiply = {
|
||
|
|
.name = "unpremultiply",
|
||
|
|
.description = NULL_IF_CONFIG_SMALL("UnPreMultiply first stream with first plane of second stream."),
|
||
|
|
.priv_size = sizeof(PreMultiplyContext),
|
||
|
|
.init = init,
|
||
|
|
.uninit = uninit,
|
||
|
|
.query_formats = query_formats,
|
||
|
|
.activate = activate,
|
||
|
|
.inputs = NULL,
|
||
|
|
.outputs = premultiply_outputs,
|
||
|
|
.priv_class = &unpremultiply_class,
|
||
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
|
||
|
|
AVFILTER_FLAG_DYNAMIC_INPUTS |
|
||
|
|
AVFILTER_FLAG_SLICE_THREADS,
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* CONFIG_UNPREMULTIPLY_FILTER */
|