diff options
Diffstat (limited to 'libavfilter/vf_maskedmerge.c')
-rw-r--r-- | libavfilter/vf_maskedmerge.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/libavfilter/vf_maskedmerge.c b/libavfilter/vf_maskedmerge.c new file mode 100644 index 0000000000..38a4663a2c --- /dev/null +++ b/libavfilter/vf_maskedmerge.c @@ -0,0 +1,311 @@ +/* + * 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_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_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_GBRAP16, + AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16, + AV_PIX_FMT_NONE + }; + + return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); +} + +static int process_frame(FFFrameSync *fs) +{ + AVFilterContext *ctx = fs->parent; + MaskedMergeContext *s = fs->opaque; + AVFilterLink *outlink = ctx->outputs[0]; + AVFrame *out, *base, *overlay, *mask; + 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 { + int p; + + out = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!out) + return AVERROR(ENOMEM); + av_frame_copy_props(out, base); + + for (p = 0; p < s->nb_planes; p++) { + if (!((1 << p) & s->planes)) { + av_image_copy_plane(out->data[p], out->linesize[p], base->data[p], base->linesize[p], + s->width[p], s->height[p]); + continue; + } + + s->maskedmerge(base->data[p], overlay->data[p], + mask->data[p], out->data[p], + base->linesize[p], overlay->linesize[p], + mask->linesize[p], out->linesize[p], + s->width[p], s->height[p], + s->half, s->depth); + } + } + out->pts = av_rescale_q(base->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] = FF_CEIL_RSHIFT(inlink->h, vsub); + s->height[0] = s->height[3] = inlink->h; + s->width[1] = s->width[2] = FF_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->sample_aspect_ratio.num != overlay->sample_aspect_ratio.num || + base->sample_aspect_ratio.den != overlay->sample_aspect_ratio.den || + base->w != mask->w || + base->h != mask->h || + base->sample_aspect_ratio.num != mask->sample_aspect_ratio.num || + base->sample_aspect_ratio.den != mask->sample_aspect_ratio.den) { + av_log(ctx, AV_LOG_ERROR, "First input link %s parameters " + "(size %dx%d, SAR %d:%d) do not match the corresponding " + "second input link %s parameters (%dx%d, SAR %d:%d) " + "and/or third input link %s parameters (%dx%d, SAR %d:%d)\n", + ctx->input_pads[0].name, base->w, base->h, + base->sample_aspect_ratio.num, + base->sample_aspect_ratio.den, + ctx->input_pads[1].name, overlay->w, overlay->h, + overlay->sample_aspect_ratio.num, + overlay->sample_aspect_ratio.den, + ctx->input_pads[2].name, mask->w, mask->h, + mask->sample_aspect_ratio.num, + mask->sample_aspect_ratio.den); + 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, 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; + + return ff_framesync_configure(&s->fs); +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *buf) +{ + MaskedMergeContext *s = inlink->dst->priv; + return ff_framesync_filter_frame(&s->fs, inlink, buf); +} + +static int request_frame(AVFilterLink *outlink) +{ + MaskedMergeContext *s = outlink->src->priv; + return ff_framesync_request_frame(&s->fs, outlink); +} + +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, + .filter_frame = filter_frame, + .config_props = config_input, + }, + { + .name = "overlay", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { + .name = "mask", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { NULL } +}; + +static const AVFilterPad maskedmerge_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = config_output, + .request_frame = request_frame, + }, + { 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, + .inputs = maskedmerge_inputs, + .outputs = maskedmerge_outputs, + .priv_class = &maskedmerge_class, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, +}; 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