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244 lines
8.4 KiB
244 lines
8.4 KiB
/* |
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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/attributes.h" |
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#include "libavutil/common.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/pixdesc.h" |
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#include "avfilter.h" |
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#include "filters.h" |
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#include "limiter.h" |
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#include "video.h" |
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typedef struct ThreadData { |
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AVFrame *in; |
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AVFrame *out; |
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} ThreadData; |
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typedef struct LimiterContext { |
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const AVClass *class; |
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int min; |
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int max; |
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int planes; |
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int nb_planes; |
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int linesize[4]; |
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int width[4]; |
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int height[4]; |
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LimiterDSPContext dsp; |
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} LimiterContext; |
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#define OFFSET(x) offsetof(LimiterContext, x) |
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
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static const AVOption limiter_options[] = { |
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{ "min", "set min value", OFFSET(min), AV_OPT_TYPE_INT, {.i64=0}, 0, 65535, .flags = FLAGS }, |
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{ "max", "set max value", OFFSET(max), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, .flags = FLAGS }, |
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{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags = FLAGS }, |
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{ NULL } |
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}; |
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AVFILTER_DEFINE_CLASS(limiter); |
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static av_cold int init(AVFilterContext *ctx) |
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{ |
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LimiterContext *s = ctx->priv; |
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if (s->min > s->max) |
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return AVERROR(EINVAL); |
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return 0; |
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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_YUVA422P12, AV_PIX_FMT_YUVA444P12, |
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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_GRAY14, AV_PIX_FMT_GRAY16, |
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AV_PIX_FMT_NONE |
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}; |
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#define LIMITER(n, type) \ |
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static void limiter##n(const uint8_t *ssrc, uint8_t *ddst, \ |
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ptrdiff_t slinesize, ptrdiff_t dlinesize,\ |
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int w, int h, int min, int max) \ |
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{ \ |
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const type *src = (const type *)ssrc; \ |
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type *dst = (type *)ddst; \ |
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\ |
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dlinesize /= sizeof(type); \ |
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slinesize /= sizeof(type); \ |
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\ |
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for (int y = 0; y < h; y++) { \ |
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for (int x = 0; x < w; x++) { \ |
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dst[x] = av_clip(src[x], min, max); \ |
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} \ |
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\ |
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dst += dlinesize; \ |
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src += slinesize; \ |
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} \ |
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} |
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LIMITER(8, uint8_t) |
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LIMITER(16, uint16_t) |
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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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LimiterContext *s = ctx->priv; |
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
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int depth, vsub, hsub, ret; |
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s->nb_planes = av_pix_fmt_count_planes(inlink->format); |
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if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) |
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return ret; |
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depth = desc->comp[0].depth; |
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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->max = FFMIN(s->max, (1 << depth) - 1); |
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s->min = FFMIN(s->min, (1 << depth) - 1); |
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if (depth == 8) { |
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s->dsp.limiter = limiter8; |
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} else { |
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s->dsp.limiter = limiter16; |
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} |
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#if ARCH_X86 |
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ff_limiter_init_x86(&s->dsp, desc->comp[0].depth); |
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#endif |
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return 0; |
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} |
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static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
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{ |
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LimiterContext *s = ctx->priv; |
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ThreadData *td = arg; |
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AVFrame *in = td->in; |
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AVFrame *out = td->out; |
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int p; |
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for (p = 0; p < s->nb_planes; p++) { |
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const int h = s->height[p]; |
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const int slice_start = (h * jobnr) / nb_jobs; |
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const int slice_end = (h * (jobnr+1)) / nb_jobs; |
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if (!((1 << p) & s->planes)) { |
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if (out != in) |
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av_image_copy_plane(out->data[p] + slice_start * out->linesize[p], |
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out->linesize[p], |
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in->data[p] + slice_start * in->linesize[p], |
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in->linesize[p], |
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s->linesize[p], slice_end - slice_start); |
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continue; |
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} |
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s->dsp.limiter(in->data[p] + slice_start * in->linesize[p], |
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out->data[p] + slice_start * out->linesize[p], |
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in->linesize[p], out->linesize[p], |
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s->width[p], slice_end - slice_start, |
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s->min, s->max); |
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} |
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return 0; |
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} |
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static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
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{ |
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AVFilterContext *ctx = inlink->dst; |
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LimiterContext *s = ctx->priv; |
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AVFilterLink *outlink = ctx->outputs[0]; |
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ThreadData td; |
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AVFrame *out; |
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if (av_frame_is_writable(in)) { |
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out = in; |
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} else { |
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
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if (!out) { |
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av_frame_free(&in); |
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return AVERROR(ENOMEM); |
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} |
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av_frame_copy_props(out, in); |
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} |
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td.out = out; |
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td.in = in; |
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ff_filter_execute(ctx, filter_slice, &td, NULL, |
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FFMIN(s->height[2], ff_filter_get_nb_threads(ctx))); |
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if (out != in) |
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av_frame_free(&in); |
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return ff_filter_frame(outlink, out); |
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} |
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static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, |
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char *res, int res_len, int flags) |
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{ |
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int ret; |
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ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags); |
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if (ret < 0) |
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return ret; |
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return config_input(ctx->inputs[0]); |
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} |
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static const AVFilterPad inputs[] = { |
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{ |
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.name = "default", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.filter_frame = filter_frame, |
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.config_props = config_input, |
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}, |
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}; |
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const AVFilter ff_vf_limiter = { |
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.name = "limiter", |
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.description = NULL_IF_CONFIG_SMALL("Limit pixels components to the specified range."), |
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.priv_size = sizeof(LimiterContext), |
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.priv_class = &limiter_class, |
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.init = init, |
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FILTER_INPUTS(inputs), |
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FILTER_OUTPUTS(ff_video_default_filterpad), |
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FILTER_PIXFMTS_ARRAY(pix_fmts), |
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
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.process_command = process_command, |
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};
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