| /* |
| * Copyright (c) 2015 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 "internal.h" |
| #include "video.h" |
| #include "maskedmerge.h" |
| |
| #define OFFSET(x) offsetof(MaskedMergeContext, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| |
| static const AVOption maskedmerge_options[] = { |
| { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(maskedmerge); |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pix_fmts[] = { |
| AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, |
| AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, |
| AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, |
| AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
| AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, |
| 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_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_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
| AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
| AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, |
| AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
| 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_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, |
| 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_NONE |
| }; |
| |
| return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
| } |
| |
| typedef struct ThreadData { |
| AVFrame *base, *overlay, *mask; |
| AVFrame *out; |
| } ThreadData; |
| |
| static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| MaskedMergeContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *base = td->base; |
| AVFrame *overlay = td->overlay; |
| AVFrame *mask = td->mask; |
| AVFrame *out = td->out; |
| int p; |
| |
| for (p = 0; p < s->nb_planes; p++) { |
| const int h = s->height[p]; |
| const int slice_start = (h * jobnr) / nb_jobs; |
| const int slice_end = (h * (jobnr+1)) / nb_jobs; |
| |
| if (!((1 << p) & s->planes)) { |
| 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->maskedmerge(base->data[p] + slice_start * base->linesize[p], |
| overlay->data[p] + slice_start * overlay->linesize[p], |
| mask->data[p] + slice_start * mask->linesize[p], |
| out->data[p] + slice_start * out->linesize[p], |
| base->linesize[p], overlay->linesize[p], |
| mask->linesize[p], out->linesize[p], |
| s->width[p], slice_end - slice_start, |
| s->half, s->depth); |
| } |
| |
| return 0; |
| } |
| |
| static int process_frame(FFFrameSync *fs) |
| { |
| AVFilterContext *ctx = fs->parent; |
| MaskedMergeContext *s = fs->opaque; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| AVFrame *out, *base, *overlay, *mask; |
| ThreadData td; |
| int ret; |
| |
| if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 || |
| (ret = ff_framesync_get_frame(&s->fs, 1, &overlay, 0)) < 0 || |
| (ret = ff_framesync_get_frame(&s->fs, 2, &mask, 0)) < 0) |
| return ret; |
| |
| if (ctx->is_disabled) { |
| out = av_frame_clone(base); |
| if (!out) |
| return AVERROR(ENOMEM); |
| } else { |
| out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| if (!out) |
| return AVERROR(ENOMEM); |
| av_frame_copy_props(out, base); |
| |
| td.out = out; |
| td.base = base; |
| td.overlay = overlay; |
| td.mask = mask; |
| ctx->internal->execute(ctx, filter_slice, &td, NULL, |
| FFMIN(s->height[2], ff_filter_get_nb_threads(ctx))); |
| } |
| out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); |
| |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static void maskedmerge8(const uint8_t *bsrc, const uint8_t *osrc, |
| const uint8_t *msrc, uint8_t *dst, |
| ptrdiff_t blinesize, ptrdiff_t olinesize, |
| ptrdiff_t mlinesize, ptrdiff_t dlinesize, |
| int w, int h, |
| int half, int shift) |
| { |
| int x, y; |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x++) { |
| dst[x] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + 128) >> 8); |
| } |
| |
| dst += dlinesize; |
| bsrc += blinesize; |
| osrc += olinesize; |
| msrc += mlinesize; |
| } |
| } |
| |
| static void maskedmerge16(const uint8_t *bbsrc, const uint8_t *oosrc, |
| const uint8_t *mmsrc, uint8_t *ddst, |
| ptrdiff_t blinesize, ptrdiff_t olinesize, |
| ptrdiff_t mlinesize, ptrdiff_t dlinesize, |
| int w, int h, |
| int half, int shift) |
| { |
| const uint16_t *bsrc = (const uint16_t *)bbsrc; |
| const uint16_t *osrc = (const uint16_t *)oosrc; |
| const uint16_t *msrc = (const uint16_t *)mmsrc; |
| uint16_t *dst = (uint16_t *)ddst; |
| int x, y; |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x++) { |
| dst[x] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + half) >> shift); |
| } |
| |
| dst += dlinesize / 2; |
| bsrc += blinesize / 2; |
| osrc += olinesize / 2; |
| msrc += mlinesize / 2; |
| } |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| MaskedMergeContext *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; |
| |
| if (desc->comp[0].depth == 8) |
| s->maskedmerge = maskedmerge8; |
| else |
| s->maskedmerge = maskedmerge16; |
| |
| if (ARCH_X86) |
| ff_maskedmerge_init_x86(s); |
| |
| return 0; |
| } |
| |
| static int config_output(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| MaskedMergeContext *s = ctx->priv; |
| AVFilterLink *base = ctx->inputs[0]; |
| AVFilterLink *overlay = ctx->inputs[1]; |
| AVFilterLink *mask = ctx->inputs[2]; |
| FFFrameSyncIn *in; |
| int ret; |
| |
| if (base->format != overlay->format || |
| base->format != mask->format) { |
| av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n"); |
| return AVERROR(EINVAL); |
| } |
| if (base->w != overlay->w || base->h != overlay->h || |
| base->w != mask->w || base->h != mask->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 (size %dx%d) " |
| "and/or third input link %s parameters (size %dx%d)\n", |
| ctx->input_pads[0].name, base->w, base->h, |
| ctx->input_pads[1].name, overlay->w, overlay->h, |
| ctx->input_pads[2].name, mask->w, mask->h); |
| return AVERROR(EINVAL); |
| } |
| |
| outlink->w = base->w; |
| outlink->h = base->h; |
| outlink->sample_aspect_ratio = base->sample_aspect_ratio; |
| outlink->frame_rate = base->frame_rate; |
| |
| if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, outlink->w)) < 0) |
| return ret; |
| |
| if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0) |
| return ret; |
| |
| in = s->fs.in; |
| in[0].time_base = base->time_base; |
| in[1].time_base = overlay->time_base; |
| in[2].time_base = mask->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; |
| in[2].sync = 1; |
| in[2].before = EXT_STOP; |
| in[2].after = EXT_INFINITY; |
| s->fs.opaque = s; |
| s->fs.on_event = process_frame; |
| |
| ret = ff_framesync_configure(&s->fs); |
| outlink->time_base = s->fs.time_base; |
| |
| return ret; |
| } |
| |
| static int activate(AVFilterContext *ctx) |
| { |
| MaskedMergeContext *s = ctx->priv; |
| return ff_framesync_activate(&s->fs); |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| MaskedMergeContext *s = ctx->priv; |
| |
| ff_framesync_uninit(&s->fs); |
| } |
| |
| static const AVFilterPad maskedmerge_inputs[] = { |
| { |
| .name = "base", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_input, |
| }, |
| { |
| .name = "overlay", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { |
| .name = "mask", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad maskedmerge_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_maskedmerge = { |
| .name = "maskedmerge", |
| .description = NULL_IF_CONFIG_SMALL("Merge first stream with second stream using third stream as mask."), |
| .priv_size = sizeof(MaskedMergeContext), |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .activate = activate, |
| .inputs = maskedmerge_inputs, |
| .outputs = maskedmerge_outputs, |
| .priv_class = &maskedmerge_class, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
| }; |