mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
296 lines
9.7 KiB
C
296 lines
9.7 KiB
C
/*
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* Copyright (c) 2015 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 "formats.h"
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#include "internal.h"
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#include "video.h"
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#include "maskedmerge.h"
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#define OFFSET(x) offsetof(MaskedMergeContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption maskedmerge_options[] = {
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{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(maskedmerge);
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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_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
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AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
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AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
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AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
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AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
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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_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
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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(pix_fmts));
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}
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static int process_frame(FFFrameSync *fs)
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{
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AVFilterContext *ctx = fs->parent;
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MaskedMergeContext *s = fs->opaque;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFrame *out, *base, *overlay, *mask;
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int ret;
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if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 1, &overlay, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 2, &mask, 0)) < 0)
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return ret;
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if (ctx->is_disabled) {
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out = av_frame_clone(base);
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if (!out)
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return AVERROR(ENOMEM);
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} else {
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int p;
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out)
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return AVERROR(ENOMEM);
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av_frame_copy_props(out, base);
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for (p = 0; p < s->nb_planes; p++) {
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if (!((1 << p) & s->planes)) {
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av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p],
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s->linesize[p], s->height[p]);
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continue;
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}
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s->maskedmerge(base->data[p], overlay->data[p],
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mask->data[p], out->data[p],
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base->linesize[p], overlay->linesize[p],
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mask->linesize[p], out->linesize[p],
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s->width[p], s->height[p],
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s->half, s->depth);
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}
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}
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out->pts = av_rescale_q(base->pts, s->fs.time_base, outlink->time_base);
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return ff_filter_frame(outlink, out);
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}
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static void maskedmerge8(const uint8_t *bsrc, const uint8_t *osrc,
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const uint8_t *msrc, uint8_t *dst,
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ptrdiff_t blinesize, ptrdiff_t olinesize,
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ptrdiff_t mlinesize, ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift)
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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] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + 128) >> 8);
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}
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dst += dlinesize;
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bsrc += blinesize;
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osrc += olinesize;
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msrc += mlinesize;
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}
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}
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static void maskedmerge16(const uint8_t *bbsrc, const uint8_t *oosrc,
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const uint8_t *mmsrc, uint8_t *ddst,
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ptrdiff_t blinesize, ptrdiff_t olinesize,
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ptrdiff_t mlinesize, ptrdiff_t dlinesize,
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int w, int h,
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int half, int shift)
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{
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const uint16_t *bsrc = (const uint16_t *)bbsrc;
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const uint16_t *osrc = (const uint16_t *)oosrc;
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const uint16_t *msrc = (const uint16_t *)mmsrc;
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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] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + half) >> shift);
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}
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dst += dlinesize / 2;
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bsrc += blinesize / 2;
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osrc += olinesize / 2;
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msrc += mlinesize / 2;
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}
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}
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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MaskedMergeContext *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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int vsub, hsub;
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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hsub = desc->log2_chroma_w;
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vsub = desc->log2_chroma_h;
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s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
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s->height[0] = s->height[3] = inlink->h;
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s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
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s->width[0] = s->width[3] = inlink->w;
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s->depth = desc->comp[0].depth;
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s->half = (1 << s->depth) / 2;
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if (desc->comp[0].depth == 8)
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s->maskedmerge = maskedmerge8;
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else
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s->maskedmerge = maskedmerge16;
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if (ARCH_X86)
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ff_maskedmerge_init_x86(s);
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return 0;
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}
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static int config_output(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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MaskedMergeContext *s = ctx->priv;
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AVFilterLink *base = ctx->inputs[0];
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AVFilterLink *overlay = ctx->inputs[1];
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AVFilterLink *mask = ctx->inputs[2];
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FFFrameSyncIn *in;
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int ret;
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if (base->format != overlay->format ||
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base->format != mask->format) {
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av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
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return AVERROR(EINVAL);
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}
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if (base->w != overlay->w || base->h != overlay->h ||
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base->w != mask->w || base->h != mask->h) {
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av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
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"(size %dx%d) do not match the corresponding "
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"second input link %s parameters (size %dx%d) "
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"and/or third input link %s parameters (size %dx%d)\n",
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ctx->input_pads[0].name, base->w, base->h,
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ctx->input_pads[1].name, overlay->w, overlay->h,
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ctx->input_pads[2].name, mask->w, mask->h);
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return AVERROR(EINVAL);
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}
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outlink->w = base->w;
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outlink->h = base->h;
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outlink->time_base = base->time_base;
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outlink->sample_aspect_ratio = base->sample_aspect_ratio;
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outlink->frame_rate = base->frame_rate;
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if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, outlink->w)) < 0)
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return ret;
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if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
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return ret;
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in = s->fs.in;
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in[0].time_base = base->time_base;
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in[1].time_base = overlay->time_base;
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in[2].time_base = mask->time_base;
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in[0].sync = 1;
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in[0].before = EXT_STOP;
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in[0].after = EXT_INFINITY;
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in[1].sync = 1;
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in[1].before = EXT_STOP;
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in[1].after = EXT_INFINITY;
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in[2].sync = 1;
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in[2].before = EXT_STOP;
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in[2].after = EXT_INFINITY;
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s->fs.opaque = s;
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s->fs.on_event = process_frame;
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return ff_framesync_configure(&s->fs);
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}
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static int activate(AVFilterContext *ctx)
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{
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MaskedMergeContext *s = ctx->priv;
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return ff_framesync_activate(&s->fs);
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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MaskedMergeContext *s = ctx->priv;
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ff_framesync_uninit(&s->fs);
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}
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static const AVFilterPad maskedmerge_inputs[] = {
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{
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.name = "base",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_input,
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},
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{
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.name = "overlay",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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{
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.name = "mask",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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{ NULL }
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};
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static const AVFilterPad maskedmerge_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_output,
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},
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{ NULL }
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};
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AVFilter ff_vf_maskedmerge = {
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.name = "maskedmerge",
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.description = NULL_IF_CONFIG_SMALL("Merge first stream with second stream using third stream as mask."),
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.priv_size = sizeof(MaskedMergeContext),
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.uninit = uninit,
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.query_formats = query_formats,
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.activate = activate,
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.inputs = maskedmerge_inputs,
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.outputs = maskedmerge_outputs,
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.priv_class = &maskedmerge_class,
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
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};
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