| /* |
| * 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/attributes.h" |
| #include "libavutil/common.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "limiter.h" |
| #include "video.h" |
| |
| typedef struct ThreadData { |
| AVFrame *in; |
| AVFrame *out; |
| } ThreadData; |
| |
| typedef struct LimiterContext { |
| const AVClass *class; |
| int min; |
| int max; |
| int planes; |
| int nb_planes; |
| int linesize[4]; |
| int width[4]; |
| int height[4]; |
| |
| LimiterDSPContext dsp; |
| } LimiterContext; |
| |
| #define OFFSET(x) offsetof(LimiterContext, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
| |
| static const AVOption limiter_options[] = { |
| { "min", "set min value", OFFSET(min), AV_OPT_TYPE_INT, {.i64=0}, 0, 65535, .flags = FLAGS }, |
| { "max", "set max value", OFFSET(max), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, .flags = FLAGS }, |
| { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags = FLAGS }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(limiter); |
| |
| static av_cold int init(AVFilterContext *ctx) |
| { |
| LimiterContext *s = ctx->priv; |
| |
| if (s->min > s->max) |
| return AVERROR(EINVAL); |
| return 0; |
| } |
| |
| 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 |
| }; |
| |
| AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| static void limiter8(const uint8_t *src, uint8_t *dst, |
| ptrdiff_t slinesize, ptrdiff_t dlinesize, |
| int w, int h, int min, int max) |
| { |
| int x, y; |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x++) { |
| dst[x] = av_clip(src[x], min, max); |
| } |
| |
| dst += dlinesize; |
| src += slinesize; |
| } |
| } |
| |
| static void limiter16(const uint8_t *ssrc, uint8_t *ddst, |
| ptrdiff_t slinesize, ptrdiff_t dlinesize, |
| int w, int h, int min, int max) |
| { |
| const uint16_t *src = (const uint16_t *)ssrc; |
| uint16_t *dst = (uint16_t *)ddst; |
| int x, y; |
| |
| dlinesize /= 2; |
| slinesize /= 2; |
| |
| for (y = 0; y < h; y++) { |
| for (x = 0; x < w; x++) { |
| dst[x] = av_clip(src[x], min, max); |
| } |
| |
| dst += dlinesize; |
| src += slinesize; |
| } |
| } |
| |
| static int config_input(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| LimiterContext *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| int depth, vsub, hsub, ret; |
| |
| s->nb_planes = av_pix_fmt_count_planes(inlink->format); |
| |
| if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) |
| return ret; |
| |
| depth = desc->comp[0].depth; |
| 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->max = FFMIN(s->max, (1 << depth) - 1); |
| s->min = FFMIN(s->min, (1 << depth) - 1); |
| |
| if (depth == 8) { |
| s->dsp.limiter = limiter8; |
| } else { |
| s->dsp.limiter = limiter16; |
| } |
| |
| if (ARCH_X86) |
| ff_limiter_init_x86(&s->dsp, desc->comp[0].depth); |
| |
| return 0; |
| } |
| |
| static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| LimiterContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *in = td->in; |
| 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)) { |
| if (out != in) |
| av_image_copy_plane(out->data[p] + slice_start * out->linesize[p], |
| out->linesize[p], |
| in->data[p] + slice_start * in->linesize[p], |
| in->linesize[p], |
| s->linesize[p], slice_end - slice_start); |
| continue; |
| } |
| |
| s->dsp.limiter(in->data[p] + slice_start * in->linesize[p], |
| out->data[p] + slice_start * out->linesize[p], |
| in->linesize[p], out->linesize[p], |
| s->width[p], slice_end - slice_start, |
| s->min, s->max); |
| } |
| |
| return 0; |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| LimiterContext *s = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| ThreadData td; |
| AVFrame *out; |
| |
| if (av_frame_is_writable(in)) { |
| out = in; |
| } else { |
| 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); |
| } |
| |
| td.out = out; |
| td.in = in; |
| ctx->internal->execute(ctx, filter_slice, &td, NULL, |
| FFMIN(s->height[2], ff_filter_get_nb_threads(ctx))); |
| if (out != in) |
| av_frame_free(&in); |
| |
| return ff_filter_frame(outlink, out); |
| } |
| |
| 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]); |
| } |
| |
| 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 ff_vf_limiter = { |
| .name = "limiter", |
| .description = NULL_IF_CONFIG_SMALL("Limit pixels components to the specified range."), |
| .priv_size = sizeof(LimiterContext), |
| .priv_class = &limiter_class, |
| .init = init, |
| .query_formats = query_formats, |
| .inputs = inputs, |
| .outputs = outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = process_command, |
| }; |