| /* |
| * Copyright (c) 2018 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/avstring.h" |
| #include "libavutil/eval.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "video.h" |
| |
| typedef struct ChromaShiftContext { |
| const AVClass *class; |
| int cbh, cbv; |
| int crh, crv; |
| int rh, rv; |
| int gh, gv; |
| int bh, bv; |
| int ah, av; |
| int edge; |
| |
| int nb_planes; |
| int depth; |
| int height[4]; |
| int width[4]; |
| int linesize[4]; |
| |
| AVFrame *in; |
| |
| int is_rgbashift; |
| int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
| } ChromaShiftContext; |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat yuv_pix_fmts[] = { |
| AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P, |
| AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P,AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P, |
| AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, 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_YUV440P10, |
| AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
| AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, |
| AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, |
| AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14, |
| AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
| AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat rgb_pix_fmts[] = { |
| AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRP9, |
| AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, |
| AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, |
| AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, |
| AV_PIX_FMT_NONE |
| }; |
| const enum AVPixelFormat *pix_fmts; |
| AVFilterFormats *fmts_list; |
| |
| if (!strcmp(ctx->filter->name, "rgbashift")) |
| pix_fmts = rgb_pix_fmts; |
| else |
| pix_fmts = yuv_pix_fmts; |
| |
| fmts_list = ff_make_format_list(pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| #define DEFINE_SMEAR(depth, type, div) \ |
| static int smear_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
| { \ |
| ChromaShiftContext *s = ctx->priv; \ |
| AVFrame *in = s->in; \ |
| AVFrame *out = arg; \ |
| const int sulinesize = in->linesize[1] / div; \ |
| const int svlinesize = in->linesize[2] / div; \ |
| const int ulinesize = out->linesize[1] / div; \ |
| const int vlinesize = out->linesize[2] / div; \ |
| const int cbh = s->cbh; \ |
| const int cbv = s->cbv; \ |
| const int crh = s->crh; \ |
| const int crv = s->crv; \ |
| const int h = s->height[1]; \ |
| const int w = s->width[1]; \ |
| const int slice_start = (h * jobnr) / nb_jobs; \ |
| const int slice_end = (h * (jobnr+1)) / nb_jobs; \ |
| const type *su = (const type *)in->data[1]; \ |
| const type *sv = (const type *)in->data[2]; \ |
| type *du = (type *)out->data[1] + slice_start * ulinesize; \ |
| type *dv = (type *)out->data[2] + slice_start * vlinesize; \ |
| \ |
| for (int y = slice_start; y < slice_end; y++) { \ |
| const int duy = av_clip(y - cbv, 0, h-1) * sulinesize; \ |
| const int dvy = av_clip(y - crv, 0, h-1) * svlinesize; \ |
| \ |
| for (int x = 0; x < w; x++) { \ |
| du[x] = su[av_clip(x - cbh, 0, w - 1) + duy]; \ |
| dv[x] = sv[av_clip(x - crh, 0, w - 1) + dvy]; \ |
| } \ |
| \ |
| du += ulinesize; \ |
| dv += vlinesize; \ |
| } \ |
| \ |
| return 0; \ |
| } |
| |
| DEFINE_SMEAR(8, uint8_t, 1) |
| DEFINE_SMEAR(16, uint16_t, 2) |
| |
| #define DEFINE_WRAP(depth, type, div) \ |
| static int wrap_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
| { \ |
| ChromaShiftContext *s = ctx->priv; \ |
| AVFrame *in = s->in; \ |
| AVFrame *out = arg; \ |
| const int sulinesize = in->linesize[1] / div; \ |
| const int svlinesize = in->linesize[2] / div; \ |
| const int ulinesize = out->linesize[1] / div; \ |
| const int vlinesize = out->linesize[2] / div; \ |
| const int cbh = s->cbh; \ |
| const int cbv = s->cbv; \ |
| const int crh = s->crh; \ |
| const int crv = s->crv; \ |
| const int h = s->height[1]; \ |
| const int w = s->width[1]; \ |
| const int slice_start = (h * jobnr) / nb_jobs; \ |
| const int slice_end = (h * (jobnr+1)) / nb_jobs; \ |
| const type *su = (const type *)in->data[1]; \ |
| const type *sv = (const type *)in->data[2]; \ |
| type *du = (type *)out->data[1] + slice_start * ulinesize; \ |
| type *dv = (type *)out->data[2] + slice_start * vlinesize; \ |
| \ |
| for (int y = slice_start; y < slice_end; y++) { \ |
| int uy = (y - cbv) % h; \ |
| int vy = (y - crv) % h; \ |
| \ |
| if (uy < 0) \ |
| uy += h; \ |
| if (vy < 0) \ |
| vy += h; \ |
| \ |
| for (int x = 0; x < w; x++) { \ |
| int ux = (x - cbh) % w; \ |
| int vx = (x - crh) % w; \ |
| \ |
| if (ux < 0) \ |
| ux += w; \ |
| if (vx < 0) \ |
| vx += w; \ |
| \ |
| du[x] = su[ux + uy * sulinesize]; \ |
| dv[x] = sv[vx + vy * svlinesize]; \ |
| } \ |
| \ |
| du += ulinesize; \ |
| dv += vlinesize; \ |
| } \ |
| \ |
| return 0; \ |
| } |
| |
| DEFINE_WRAP(8, uint8_t, 1) |
| DEFINE_WRAP(16, uint16_t, 2) |
| |
| #define DEFINE_RGBASMEAR(depth, type, div) \ |
| static int rgbasmear_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
| { \ |
| ChromaShiftContext *s = ctx->priv; \ |
| AVFrame *in = s->in; \ |
| AVFrame *out = arg; \ |
| const int srlinesize = in->linesize[2] / div; \ |
| const int sglinesize = in->linesize[0] / div; \ |
| const int sblinesize = in->linesize[1] / div; \ |
| const int salinesize = in->linesize[3] / div; \ |
| const int rlinesize = out->linesize[2] / div; \ |
| const int glinesize = out->linesize[0] / div; \ |
| const int blinesize = out->linesize[1] / div; \ |
| const int alinesize = out->linesize[3] / div; \ |
| const int rh = s->rh; \ |
| const int rv = s->rv; \ |
| const int gh = s->gh; \ |
| const int gv = s->gv; \ |
| const int bh = s->bh; \ |
| const int bv = s->bv; \ |
| const int ah = s->ah; \ |
| const int av = s->av; \ |
| const int h = s->height[1]; \ |
| const int w = s->width[1]; \ |
| const int slice_start = (h * jobnr) / nb_jobs; \ |
| const int slice_end = (h * (jobnr+1)) / nb_jobs; \ |
| const type *sr = (const type *)in->data[2]; \ |
| const type *sg = (const type *)in->data[0]; \ |
| const type *sb = (const type *)in->data[1]; \ |
| const type *sa = (const type *)in->data[3]; \ |
| type *dr = (type *)out->data[2] + slice_start * rlinesize; \ |
| type *dg = (type *)out->data[0] + slice_start * glinesize; \ |
| type *db = (type *)out->data[1] + slice_start * blinesize; \ |
| type *da = (type *)out->data[3] + slice_start * alinesize; \ |
| \ |
| for (int y = slice_start; y < slice_end; y++) { \ |
| const int ry = av_clip(y - rv, 0, h-1) * srlinesize; \ |
| const int gy = av_clip(y - gv, 0, h-1) * sglinesize; \ |
| const int by = av_clip(y - bv, 0, h-1) * sblinesize; \ |
| int ay; \ |
| \ |
| for (int x = 0; x < w; x++) { \ |
| dr[x] = sr[av_clip(x - rh, 0, w - 1) + ry]; \ |
| dg[x] = sg[av_clip(x - gh, 0, w - 1) + gy]; \ |
| db[x] = sb[av_clip(x - bh, 0, w - 1) + by]; \ |
| } \ |
| \ |
| dr += rlinesize; \ |
| dg += glinesize; \ |
| db += blinesize; \ |
| \ |
| if (s->nb_planes < 4) \ |
| continue; \ |
| ay = av_clip(y - av, 0, h-1) * salinesize; \ |
| for (int x = 0; x < w; x++) { \ |
| da[x] = sa[av_clip(x - ah, 0, w - 1) + ay]; \ |
| } \ |
| \ |
| da += alinesize; \ |
| } \ |
| \ |
| return 0; \ |
| } |
| |
| DEFINE_RGBASMEAR(8, uint8_t, 1) |
| DEFINE_RGBASMEAR(16, uint16_t, 2) |
| |
| #define DEFINE_RGBAWRAP(depth, type, div) \ |
| static int rgbawrap_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
| { \ |
| ChromaShiftContext *s = ctx->priv; \ |
| AVFrame *in = s->in; \ |
| AVFrame *out = arg; \ |
| const int srlinesize = in->linesize[2] / div; \ |
| const int sglinesize = in->linesize[0] / div; \ |
| const int sblinesize = in->linesize[1] / div; \ |
| const int salinesize = in->linesize[3] / div; \ |
| const int rlinesize = out->linesize[2] / div; \ |
| const int glinesize = out->linesize[0] / div; \ |
| const int blinesize = out->linesize[1] / div; \ |
| const int alinesize = out->linesize[3] / div; \ |
| const int rh = s->rh; \ |
| const int rv = s->rv; \ |
| const int gh = s->gh; \ |
| const int gv = s->gv; \ |
| const int bh = s->bh; \ |
| const int bv = s->bv; \ |
| const int ah = s->ah; \ |
| const int av = s->av; \ |
| const int h = s->height[1]; \ |
| const int w = s->width[1]; \ |
| const int slice_start = (h * jobnr) / nb_jobs; \ |
| const int slice_end = (h * (jobnr+1)) / nb_jobs; \ |
| const type *sr = (const type *)in->data[2]; \ |
| const type *sg = (const type *)in->data[0]; \ |
| const type *sb = (const type *)in->data[1]; \ |
| const type *sa = (const type *)in->data[3]; \ |
| type *dr = (type *)out->data[2] + slice_start * rlinesize; \ |
| type *dg = (type *)out->data[0] + slice_start * glinesize; \ |
| type *db = (type *)out->data[1] + slice_start * blinesize; \ |
| type *da = (type *)out->data[3] + slice_start * alinesize; \ |
| \ |
| for (int y = slice_start; y < slice_end; y++) { \ |
| int ry = (y - rv) % h; \ |
| int gy = (y - gv) % h; \ |
| int by = (y - bv) % h; \ |
| \ |
| if (ry < 0) \ |
| ry += h; \ |
| if (gy < 0) \ |
| gy += h; \ |
| if (by < 0) \ |
| by += h; \ |
| \ |
| for (int x = 0; x < w; x++) { \ |
| int rx = (x - rh) % w; \ |
| int gx = (x - gh) % w; \ |
| int bx = (x - bh) % w; \ |
| \ |
| if (rx < 0) \ |
| rx += w; \ |
| if (gx < 0) \ |
| gx += w; \ |
| if (bx < 0) \ |
| bx += w; \ |
| dr[x] = sr[rx + ry * srlinesize]; \ |
| dg[x] = sg[gx + gy * sglinesize]; \ |
| db[x] = sb[bx + by * sblinesize]; \ |
| } \ |
| \ |
| dr += rlinesize; \ |
| dg += glinesize; \ |
| db += blinesize; \ |
| \ |
| if (s->nb_planes < 4) \ |
| continue; \ |
| for (int x = 0; x < w; x++) { \ |
| int ax = (x - ah) % w; \ |
| int ay = (x - av) % h; \ |
| \ |
| if (ax < 0) \ |
| ax += w; \ |
| if (ay < 0) \ |
| ay += h; \ |
| da[x] = sa[ax + ay * salinesize]; \ |
| } \ |
| \ |
| da += alinesize; \ |
| } \ |
| \ |
| return 0; \ |
| } |
| |
| DEFINE_RGBAWRAP(8, uint8_t, 1) |
| DEFINE_RGBAWRAP(16, uint16_t, 2) |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| ChromaShiftContext *s = ctx->priv; |
| AVFrame *out; |
| |
| out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| if (!out) { |
| av_frame_free(&in); |
| return AVERROR(ENOMEM); |
| } |
| av_frame_copy_props(out, in); |
| |
| s->in = in; |
| if (!s->is_rgbashift) { |
| av_image_copy_plane(out->data[0], |
| out->linesize[0], |
| in->data[0], in->linesize[0], |
| s->linesize[0], s->height[0]); |
| } |
| ctx->internal->execute(ctx, s->filter_slice, out, NULL, |
| FFMIN3(s->height[1], |
| s->height[2], |
| ff_filter_get_nb_threads(ctx))); |
| s->in = NULL; |
| av_frame_free(&in); |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| ChromaShiftContext *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| |
| s->is_rgbashift = !strcmp(ctx->filter->name, "rgbashift"); |
| s->depth = desc->comp[0].depth; |
| s->nb_planes = desc->nb_components; |
| if (s->is_rgbashift) { |
| if (s->edge) |
| s->filter_slice = s->depth > 8 ? rgbawrap_slice16 : rgbawrap_slice8; |
| else |
| s->filter_slice = s->depth > 8 ? rgbasmear_slice16 : rgbasmear_slice8; |
| } else { |
| if (s->edge) |
| s->filter_slice = s->depth > 8 ? wrap_slice16 : wrap_slice8; |
| else |
| s->filter_slice = s->depth > 8 ? smear_slice16 : smear_slice8; |
| } |
| s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); |
| s->height[0] = s->height[3] = inlink->h; |
| s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
| s->width[0] = s->width[3] = inlink->w; |
| |
| return av_image_fill_linesizes(s->linesize, inlink->format, inlink->w); |
| } |
| |
| static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, |
| char *res, int res_len, int flags) |
| { |
| int ret; |
| |
| ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags); |
| if (ret < 0) |
| return ret; |
| |
| return config_input(ctx->inputs[0]); |
| } |
| |
| #define OFFSET(x) offsetof(ChromaShiftContext, x) |
| #define VFR AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM |
| |
| static const AVOption chromashift_options[] = { |
| { "cbh", "shift chroma-blue horizontally", OFFSET(cbh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "cbv", "shift chroma-blue vertically", OFFSET(cbv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "crh", "shift chroma-red horizontally", OFFSET(crh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "crv", "shift chroma-red vertically", OFFSET(crv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "edge", "set edge operation", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = VFR, "edge" }, |
| { "smear", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, .flags = VFR, "edge" }, |
| { "wrap", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, .flags = VFR, "edge" }, |
| { NULL }, |
| }; |
| |
| static const AVFilterPad inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = filter_frame, |
| .config_props = config_input, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(chromashift); |
| |
| AVFilter ff_vf_chromashift = { |
| .name = "chromashift", |
| .description = NULL_IF_CONFIG_SMALL("Shift chroma."), |
| .priv_size = sizeof(ChromaShiftContext), |
| .priv_class = &chromashift_class, |
| .query_formats = query_formats, |
| .outputs = outputs, |
| .inputs = inputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = process_command, |
| }; |
| |
| static const AVOption rgbashift_options[] = { |
| { "rh", "shift red horizontally", OFFSET(rh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "rv", "shift red vertically", OFFSET(rv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "gh", "shift green horizontally", OFFSET(gh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "gv", "shift green vertically", OFFSET(gv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "bh", "shift blue horizontally", OFFSET(bh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "bv", "shift blue vertically", OFFSET(bv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "ah", "shift alpha horizontally", OFFSET(ah), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "av", "shift alpha vertically", OFFSET(av), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR }, |
| { "edge", "set edge operation", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = VFR, "edge" }, |
| { "smear", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, .flags = VFR, "edge" }, |
| { "wrap", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, .flags = VFR, "edge" }, |
| { NULL }, |
| }; |
| |
| AVFILTER_DEFINE_CLASS(rgbashift); |
| |
| AVFilter ff_vf_rgbashift = { |
| .name = "rgbashift", |
| .description = NULL_IF_CONFIG_SMALL("Shift RGBA."), |
| .priv_size = sizeof(ChromaShiftContext), |
| .priv_class = &rgbashift_class, |
| .query_formats = query_formats, |
| .outputs = outputs, |
| .inputs = inputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = process_command, |
| }; |
