标签：last col diff his rcm ESS bit under man
/* * 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 */ /** * @file * zscale video filter using z.lib library */ #include <float.h> #include <stdio.h> #include <string.h> #include <zimg.h> #include "avfilter.h" #include "formats.h" #include "internal.h" #include "video.h" #include "libavutil/avstring.h" #include "libavutil/eval.h" #include "libavutil/internal.h" #include "libavutil/intreadwrite.h" #include "libavutil/mathematics.h" #include "libavutil/opt.h" #include "libavutil/parseutils.h" #include "libavutil/pixdesc.h" #include "libavutil/imgutils.h" #include "libavutil/avassert.h" static const char *const var_names[] = { "in_w", "iw", "in_h", "ih", "out_w", "ow", "out_h", "oh", "a", "sar", "dar", "hsub", "vsub", "ohsub", "ovsub", NULL }; enum var_name { VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VARS_NB }; typedef struct ZScaleContext { const AVClass *class; /** * New dimensions. Special values are: * 0 = original width/height * -1 = keep original aspect * -N = try to keep aspect but make sure it is divisible by N */ int w, h; int dither; int filter; int colorspace; int trc; int primaries; int range; int chromal; int colorspace_in; int trc_in; int primaries_in; int range_in; int chromal_in; char *size_str; double nominal_peak_luminance; int approximate_gamma; char *w_expr; ///< width expression string char *h_expr; ///< height expression string int out_h_chr_pos; int out_v_chr_pos; int in_h_chr_pos; int in_v_chr_pos; int force_original_aspect_ratio; void *tmp; size_t tmp_size; zimg_image_format src_format, dst_format; zimg_image_format alpha_src_format, alpha_dst_format; zimg_graph_builder_params alpha_params, params; zimg_filter_graph *alpha_graph, *graph; enum AVColorSpace in_colorspace, out_colorspace; enum AVColorTransferCharacteristic in_trc, out_trc; enum AVColorPrimaries in_primaries, out_primaries; enum AVColorRange in_range, out_range; enum AVChromaLocation in_chromal, out_chromal; } ZScaleContext; static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts) { ZScaleContext *s = ctx->priv; int ret; if (s->size_str && (s->w_expr || s->h_expr)) { av_log(ctx, AV_LOG_ERROR, "Size and width/height expressions cannot be set at the same time.\n"); return AVERROR(EINVAL); } if (s->w_expr && !s->h_expr) FFSWAP(char *, s->w_expr, s->size_str); if (s->size_str) { char buf[32]; if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) { av_log(ctx, AV_LOG_ERROR, "Invalid size ‘%s‘\n", s->size_str); return ret; } snprintf(buf, sizeof(buf)-1, "%d", s->w); av_opt_set(s, "w", buf, 0); snprintf(buf, sizeof(buf)-1, "%d", s->h); av_opt_set(s, "h", buf, 0); } if (!s->w_expr) av_opt_set(s, "w", "iw", 0); if (!s->h_expr) av_opt_set(s, "h", "ih", 0); return 0; } static int query_formats(AVFilterContext *ctx) { static const enum AVPixelFormat pixel_fmts[] = { AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ411P, 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_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, 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_GBRPF32, AV_PIX_FMT_GBRAPF32, AV_PIX_FMT_NONE }; int ret; ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->out_formats); if (ret < 0) return ret; return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->in_formats); } static int config_props(AVFilterLink *outlink) { AVFilterContext *ctx = outlink->src; AVFilterLink *inlink = outlink->src->inputs[0]; ZScaleContext *s = ctx->priv; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format); int64_t w, h; double var_values[VARS_NB], res; char *expr; int ret; int factor_w, factor_h; var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w; var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h; var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN; var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN; var_values[VAR_A] = (double) inlink->w / inlink->h; var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1; var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR]; var_values[VAR_HSUB] = 1 << desc->log2_chroma_w; var_values[VAR_VSUB] = 1 << desc->log2_chroma_h; var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w; var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h; /* evaluate width and height */ av_expr_parse_and_eval(&res, (expr = s->w_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx); s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) goto fail; s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; /* evaluate again the width, as it may depend on the output height */ if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) goto fail; s->w = res; w = s->w; h = s->h; /* Check if it is requested that the result has to be divisible by a some * factor (w or h = -n with n being the factor). */ factor_w = 1; factor_h = 1; if (w < -1) { factor_w = -w; } if (h < -1) { factor_h = -h; } if (w < 0 && h < 0) s->w = s->h = 0; if (!(w = s->w)) w = inlink->w; if (!(h = s->h)) h = inlink->h; /* Make sure that the result is divisible by the factor we determined * earlier. If no factor was set, it is nothing will happen as the default * factor is 1 */ if (w < 0) w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w; if (h < 0) h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h; /* Note that force_original_aspect_ratio may overwrite the previous set * dimensions so that it is not divisible by the set factors anymore. */ if (s->force_original_aspect_ratio) { int tmp_w = av_rescale(h, inlink->w, inlink->h); int tmp_h = av_rescale(w, inlink->h, inlink->w); if (s->force_original_aspect_ratio == 1) { w = FFMIN(tmp_w, w); h = FFMIN(tmp_h, h); } else { w = FFMAX(tmp_w, w); h = FFMAX(tmp_h, h); } } if (w > INT_MAX || h > INT_MAX || (h * inlink->w) > INT_MAX || (w * inlink->h) > INT_MAX) av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n"); outlink->w = w; outlink->h = h; if (inlink->w == outlink->w && inlink->h == outlink->h && inlink->format == outlink->format) ; else { } if (inlink->sample_aspect_ratio.num){ outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio); } else outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s sar:%d/%d -> w:%d h:%d fmt:%s sar:%d/%d\n", inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format), inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den, outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format), outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den); return 0; fail: av_log(ctx, AV_LOG_ERROR, "Error when evaluating the expression ‘%s‘.\n" "Maybe the expression for out_w:‘%s‘ or for out_h:‘%s‘ is self-referencing.\n", expr, s->w_expr, s->h_expr); return ret; } static int print_zimg_error(AVFilterContext *ctx) { char err_msg[1024]; int err_code = zimg_get_last_error(err_msg, sizeof(err_msg)); av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg); return AVERROR_EXTERNAL; } static int convert_chroma_location(enum AVChromaLocation chroma_location) { switch (chroma_location) { case AVCHROMA_LOC_UNSPECIFIED: case AVCHROMA_LOC_LEFT: return ZIMG_CHROMA_LEFT; case AVCHROMA_LOC_CENTER: return ZIMG_CHROMA_CENTER; case AVCHROMA_LOC_TOPLEFT: return ZIMG_CHROMA_TOP_LEFT; case AVCHROMA_LOC_TOP: return ZIMG_CHROMA_TOP; case AVCHROMA_LOC_BOTTOMLEFT: return ZIMG_CHROMA_BOTTOM_LEFT; case AVCHROMA_LOC_BOTTOM: return ZIMG_CHROMA_BOTTOM; } return ZIMG_CHROMA_LEFT; } static int convert_matrix(enum AVColorSpace colorspace) { switch (colorspace) { case AVCOL_SPC_RGB: return ZIMG_MATRIX_RGB; case AVCOL_SPC_BT709: return ZIMG_MATRIX_709; case AVCOL_SPC_UNSPECIFIED: return ZIMG_MATRIX_UNSPECIFIED; case AVCOL_SPC_FCC: return ZIMG_MATRIX_FCC; case AVCOL_SPC_BT470BG: return ZIMG_MATRIX_470BG; case AVCOL_SPC_SMPTE170M: return ZIMG_MATRIX_170M; case AVCOL_SPC_SMPTE240M: return ZIMG_MATRIX_240M; case AVCOL_SPC_YCGCO: return ZIMG_MATRIX_YCGCO; case AVCOL_SPC_BT2020_NCL: return ZIMG_MATRIX_2020_NCL; case AVCOL_SPC_BT2020_CL: return ZIMG_MATRIX_2020_CL; case AVCOL_SPC_CHROMA_DERIVED_NCL: return ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL; case AVCOL_SPC_CHROMA_DERIVED_CL: return ZIMG_MATRIX_CHROMATICITY_DERIVED_CL; case AVCOL_SPC_ICTCP: return ZIMG_MATRIX_ICTCP; } return ZIMG_MATRIX_UNSPECIFIED; } static int convert_trc(enum AVColorTransferCharacteristic color_trc) { switch (color_trc) { case AVCOL_TRC_UNSPECIFIED: return ZIMG_TRANSFER_UNSPECIFIED; case AVCOL_TRC_BT709: return ZIMG_TRANSFER_709; case AVCOL_TRC_GAMMA22: return ZIMG_TRANSFER_470_M; case AVCOL_TRC_GAMMA28: return ZIMG_TRANSFER_470_BG; case AVCOL_TRC_SMPTE170M: return ZIMG_TRANSFER_601; case AVCOL_TRC_SMPTE240M: return ZIMG_TRANSFER_240M; case AVCOL_TRC_LINEAR: return ZIMG_TRANSFER_LINEAR; case AVCOL_TRC_LOG: return ZIMG_TRANSFER_LOG_100; case AVCOL_TRC_LOG_SQRT: return ZIMG_TRANSFER_LOG_316; case AVCOL_TRC_IEC61966_2_4: return ZIMG_TRANSFER_IEC_61966_2_4; case AVCOL_TRC_BT2020_10: return ZIMG_TRANSFER_2020_10; case AVCOL_TRC_BT2020_12: return ZIMG_TRANSFER_2020_12; case AVCOL_TRC_SMPTE2084: return ZIMG_TRANSFER_ST2084; case AVCOL_TRC_ARIB_STD_B67: return ZIMG_TRANSFER_ARIB_B67; case AVCOL_TRC_IEC61966_2_1: return ZIMG_TRANSFER_IEC_61966_2_1; } return ZIMG_TRANSFER_UNSPECIFIED; } static int convert_primaries(enum AVColorPrimaries color_primaries) { switch (color_primaries) { case AVCOL_PRI_UNSPECIFIED: return ZIMG_PRIMARIES_UNSPECIFIED; case AVCOL_PRI_BT709: return ZIMG_PRIMARIES_709; case AVCOL_PRI_BT470M: return ZIMG_PRIMARIES_470_M; case AVCOL_PRI_BT470BG: return ZIMG_PRIMARIES_470_BG; case AVCOL_PRI_SMPTE170M: return ZIMG_PRIMARIES_170M; case AVCOL_PRI_SMPTE240M: return ZIMG_PRIMARIES_240M; case AVCOL_PRI_FILM: return ZIMG_PRIMARIES_FILM; case AVCOL_PRI_BT2020: return ZIMG_PRIMARIES_2020; case AVCOL_PRI_SMPTE428: return ZIMG_PRIMARIES_ST428; case AVCOL_PRI_SMPTE431: return ZIMG_PRIMARIES_ST431_2; case AVCOL_PRI_SMPTE432: return ZIMG_PRIMARIES_ST432_1; case AVCOL_PRI_JEDEC_P22: return ZIMG_PRIMARIES_EBU3213_E; } return ZIMG_PRIMARIES_UNSPECIFIED; } static int convert_range(enum AVColorRange color_range) { switch (color_range) { case AVCOL_RANGE_UNSPECIFIED: case AVCOL_RANGE_MPEG: return ZIMG_RANGE_LIMITED; case AVCOL_RANGE_JPEG: return ZIMG_RANGE_FULL; } return ZIMG_RANGE_LIMITED; } static void format_init(zimg_image_format *format, AVFrame *frame, const AVPixFmtDescriptor *desc, int colorspace, int primaries, int transfer, int range, int location) { format->width = frame->width; format->height = frame->height; format->subsample_w = desc->log2_chroma_w; format->subsample_h = desc->log2_chroma_h; format->depth = desc->comp[0].depth; format->pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; format->color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV; format->matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : colorspace == -1 ? convert_matrix(frame->colorspace) : colorspace; format->color_primaries = primaries == -1 ? convert_primaries(frame->color_primaries) : primaries; format->transfer_characteristics = transfer == - 1 ? convert_trc(frame->color_trc) : transfer; format->pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : range == -1 ? convert_range(frame->color_range) : range; format->chroma_location = location == -1 ? convert_chroma_location(frame->chroma_location) : location; } static int graph_build(zimg_filter_graph **graph, zimg_graph_builder_params *params, zimg_image_format *src_format, zimg_image_format *dst_format, void **tmp, size_t *tmp_size) { int ret; size_t size; zimg_filter_graph_free(*graph); *graph = zimg_filter_graph_build(src_format, dst_format, params); if (!*graph) return print_zimg_error(NULL); ret = zimg_filter_graph_get_tmp_size(*graph, &size); if (ret) return print_zimg_error(NULL); if (size > *tmp_size) { av_freep(tmp); *tmp = av_malloc(size); if (!*tmp) return AVERROR(ENOMEM); *tmp_size = size; } return 0; } static int filter_frame(AVFilterLink *link, AVFrame *in) { ZScaleContext *s = link->dst->priv; AVFilterLink *outlink = link->dst->outputs[0]; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format); const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format); zimg_image_buffer_const src_buf = { ZIMG_API_VERSION }; zimg_image_buffer dst_buf = { ZIMG_API_VERSION }; char buf[32]; int ret = 0, plane; 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); out->width = outlink->w; out->height = outlink->h; if( in->width != link->w || in->height != link->h || in->format != link->format || s->in_colorspace != in->colorspace || s->in_trc != in->color_trc || s->in_primaries != in->color_primaries || s->in_range != in->color_range || s->out_colorspace != out->colorspace || s->out_trc != out->color_trc || s->out_primaries != out->color_primaries || s->out_range != out->color_range || s->in_chromal != in->chroma_location || s->out_chromal != out->chroma_location) { snprintf(buf, sizeof(buf)-1, "%d", outlink->w); av_opt_set(s, "w", buf, 0); snprintf(buf, sizeof(buf)-1, "%d", outlink->h); av_opt_set(s, "h", buf, 0); link->dst->inputs[0]->format = in->format; link->dst->inputs[0]->w = in->width; link->dst->inputs[0]->h = in->height; if ((ret = config_props(outlink)) < 0) { av_frame_free(&in); av_frame_free(&out); return ret; } zimg_image_format_default(&s->src_format, ZIMG_API_VERSION); zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION); zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION); s->params.dither_type = s->dither; s->params.cpu_type = ZIMG_CPU_AUTO; s->params.resample_filter = s->filter; s->params.resample_filter_uv = s->filter; s->params.nominal_peak_luminance = s->nominal_peak_luminance; s->params.allow_approximate_gamma = s->approximate_gamma; format_init(&s->src_format, in, desc, s->colorspace_in, s->primaries_in, s->trc_in, s->range_in, s->chromal_in); format_init(&s->dst_format, out, odesc, s->colorspace, s->primaries, s->trc, s->range, s->chromal); if (s->colorspace != -1) out->colorspace = (int)s->dst_format.matrix_coefficients; if (s->primaries != -1) out->color_primaries = (int)s->dst_format.color_primaries; if (s->range != -1) out->color_range = (int)s->dst_format.pixel_range + 1; if (s->trc != -1) out->color_trc = (int)s->dst_format.transfer_characteristics; if (s->chromal != -1) out->chroma_location = (int)s->dst_format.chroma_location - 1; ret = graph_build(&s->graph, &s->params, &s->src_format, &s->dst_format, &s->tmp, &s->tmp_size); if (ret < 0) goto fail; s->in_colorspace = in->colorspace; s->in_trc = in->color_trc; s->in_primaries = in->color_primaries; s->in_range = in->color_range; s->out_colorspace = out->colorspace; s->out_trc = out->color_trc; s->out_primaries = out->color_primaries; s->out_range = out->color_range; if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) { zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION); zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION); zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION); s->alpha_params.dither_type = s->dither; s->alpha_params.cpu_type = ZIMG_CPU_AUTO; s->alpha_params.resample_filter = s->filter; s->alpha_src_format.width = in->width; s->alpha_src_format.height = in->height; s->alpha_src_format.depth = desc->comp[0].depth; s->alpha_src_format.pixel_type = (desc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; s->alpha_src_format.color_family = ZIMG_COLOR_GREY; s->alpha_dst_format.width = out->width; s->alpha_dst_format.height = out->height; s->alpha_dst_format.depth = odesc->comp[0].depth; s->alpha_dst_format.pixel_type = (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) ? ZIMG_PIXEL_FLOAT : odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE; s->alpha_dst_format.color_family = ZIMG_COLOR_GREY; zimg_filter_graph_free(s->alpha_graph); s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params); if (!s->alpha_graph) { ret = print_zimg_error(link->dst); goto fail; } } } if (s->colorspace != -1) out->colorspace = (int)s->dst_format.matrix_coefficients; if (s->primaries != -1) out->color_primaries = (int)s->dst_format.color_primaries; if (s->range != -1) out->color_range = (int)s->dst_format.pixel_range; if (s->trc != -1) out->color_trc = (int)s->dst_format.transfer_characteristics; av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den, (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w, (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h, INT_MAX); for (plane = 0; plane < 3; plane++) { int p = desc->comp[plane].plane; src_buf.plane[plane].data = in->data[p]; src_buf.plane[plane].stride = in->linesize[p]; src_buf.plane[plane].mask = -1; p = odesc->comp[plane].plane; dst_buf.plane[plane].data = out->data[p]; dst_buf.plane[plane].stride = out->linesize[p]; dst_buf.plane[plane].mask = -1; } ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0); if (ret) { ret = print_zimg_error(link->dst); goto fail; } if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) { src_buf.plane[0].data = in->data[3]; src_buf.plane[0].stride = in->linesize[3]; src_buf.plane[0].mask = -1; dst_buf.plane[0].data = out->data[3]; dst_buf.plane[0].stride = out->linesize[3]; dst_buf.plane[0].mask = -1; ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0); if (ret) { ret = print_zimg_error(link->dst); goto fail; } } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) { int x, y; if (odesc->flags & AV_PIX_FMT_FLAG_FLOAT) { for (y = 0; y < out->height; y++) { for (x = 0; x < out->width; x++) { AV_WN32(out->data[3] + x * odesc->comp[3].step + y * out->linesize[3], av_float2int(1.0f)); } } } else { for (y = 0; y < outlink->h; y++) memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w); } } fail: av_frame_free(&in); if (ret) { av_frame_free(&out); return ret; } return ff_filter_frame(outlink, out); } static void uninit(AVFilterContext *ctx) { ZScaleContext *s = ctx->priv; zimg_filter_graph_free(s->graph); zimg_filter_graph_free(s->alpha_graph); av_freep(&s->tmp); s->tmp_size = 0; } static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags) { ZScaleContext *s = ctx->priv; int ret; if ( !strcmp(cmd, "width") || !strcmp(cmd, "w") || !strcmp(cmd, "height") || !strcmp(cmd, "h")) { int old_w = s->w; int old_h = s->h; AVFilterLink *outlink = ctx->outputs[0]; av_opt_set(s, cmd, args, 0); if ((ret = config_props(outlink)) < 0) { s->w = old_w; s->h = old_h; } } else ret = AVERROR(ENOSYS); return ret; } #define OFFSET(x) offsetof(ZScaleContext, x) #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM static const AVOption zscale_options[] = { { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS }, { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS }, { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" }, { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" }, { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" }, { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" }, { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" }, { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" }, { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" }, { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" }, { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" }, { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" }, { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" }, { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" }, { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" }, { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" }, { "out_range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" }, { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" }, { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" }, { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" }, { "tv", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" }, { "pc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" }, { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" }, { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" }, { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" }, { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" }, { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" }, { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" }, { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" }, { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" }, { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" }, { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" }, { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_M}, 0, 0, FLAGS, "primaries" }, { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_470_BG}, 0, 0, FLAGS, "primaries" }, { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" }, { "smpte240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" }, { "film", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_FILM}, 0, 0, FLAGS, "primaries" }, { "bt2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" }, { "smpte428", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST428}, 0, 0, FLAGS, "primaries" }, { "smpte431", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST431_2}, 0, 0, FLAGS, "primaries" }, { "smpte432", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_ST432_1}, 0, 0, FLAGS, "primaries" }, { "jedec-p22", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_EBU3213_E}, 0, 0, FLAGS, "primaries" }, { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" }, { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" }, { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" }, { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" }, { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" }, { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" }, { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" }, { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" }, { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" }, { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" }, { "bt470m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_M}, 0, 0, FLAGS, "transfer" }, { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_470_BG}, 0, 0, FLAGS, "transfer" }, { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" }, { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" }, { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" }, { "log100", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_100}, 0, 0, FLAGS, "transfer" }, { "log316", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LOG_316}, 0, 0, FLAGS, "transfer" }, { "bt2020-10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" }, { "bt2020-12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" }, { "smpte2084", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ST2084}, 0, 0, FLAGS, "transfer" }, { "iec61966-2-4", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_4},0, 0, FLAGS, "transfer" }, { "iec61966-2-1", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_IEC_61966_2_1},0, 0, FLAGS, "transfer" }, { "arib-std-b67", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_ARIB_B67}, 0, 0, FLAGS, "transfer" }, { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" }, { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" }, { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" }, { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" }, { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" }, { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" }, { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" }, { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" }, { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" }, { "unknown", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" }, { "gbr", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_RGB}, 0, 0, FLAGS, "matrix" }, { "bt709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" }, { "fcc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_FCC}, 0, 0, FLAGS, "matrix" }, { "bt470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" }, { "smpte170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" }, { "smpte2400m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_240M}, 0, 0, FLAGS, "matrix" }, { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" }, { "bt2020nc", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" }, { "bt2020c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" }, { "chroma-derived-nc",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_NCL}, 0, 0, FLAGS, "matrix" }, { "chroma-derived-c", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_CHROMATICITY_DERIVED_CL}, 0, 0, FLAGS, "matrix" }, { "ictcp", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_ICTCP}, 0, 0, FLAGS, "matrix" }, { "in_range", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" }, { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" }, { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "primaries" }, { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" }, { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "transfer" }, { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" }, { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS, "matrix" }, { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" }, { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" }, { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" }, { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" }, { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" }, { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" }, { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" }, { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" }, { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" }, { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" }, { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" }, { "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS }, { "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS }, { NULL } }; AVFILTER_DEFINE_CLASS(zscale); static const AVFilterPad avfilter_vf_zscale_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = filter_frame, }, { NULL } }; static const AVFilterPad avfilter_vf_zscale_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_props, }, { NULL } }; AVFilter ff_vf_zscale = { .name = "zscale", .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."), .init_dict = init_dict, .query_formats = query_formats, .priv_size = sizeof(ZScaleContext), .priv_class = &zscale_class, .uninit = uninit, .inputs = avfilter_vf_zscale_inputs, .outputs = avfilter_vf_zscale_outputs, .process_command = process_command, };
标签：last col diff his rcm ESS bit under man
原文地址：https://www.cnblogs.com/luoyinjie/p/14664401.html
