2 * Copyright (c) 2015 Paul B Mahol
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * zscale video filter using z.lib library
35 #include "libavutil/avstring.h"
36 #include "libavutil/eval.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/imgutils.h"
43 #include "libavutil/avassert.h"
45 static const char *const var_names[] = {
75 typedef struct ZScaleContext {
79 * New dimensions. Special values are:
80 * 0 = original width/height
81 * -1 = keep original aspect
82 * -N = try to keep aspect but make sure it is divisible by N
99 char *w_expr; ///< width expression string
100 char *h_expr; ///< height expression string
107 int force_original_aspect_ratio;
112 zimg_image_format src_format, dst_format;
113 zimg_image_format alpha_src_format, alpha_dst_format;
114 zimg_graph_builder_params alpha_params, params;
115 zimg_filter_graph *alpha_graph, *graph;
117 enum AVColorSpace in_colorspace, out_colorspace;
118 enum AVColorTransferCharacteristic in_trc, out_trc;
119 enum AVColorPrimaries in_primaries, out_primaries;
120 enum AVColorRange in_range, out_range;
121 enum AVChromaLocation in_chromal, out_chromal;
124 static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
126 ZScaleContext *s = ctx->priv;
129 if (s->size_str && (s->w_expr || s->h_expr)) {
130 av_log(ctx, AV_LOG_ERROR,
131 "Size and width/height expressions cannot be set at the same time.\n");
132 return AVERROR(EINVAL);
135 if (s->w_expr && !s->h_expr)
136 FFSWAP(char *, s->w_expr, s->size_str);
140 if ((ret = av_parse_video_size(&s->w, &s->h, s->size_str)) < 0) {
141 av_log(ctx, AV_LOG_ERROR,
142 "Invalid size '%s'\n", s->size_str);
145 snprintf(buf, sizeof(buf)-1, "%d", s->w);
146 av_opt_set(s, "w", buf, 0);
147 snprintf(buf, sizeof(buf)-1, "%d", s->h);
148 av_opt_set(s, "h", buf, 0);
151 av_opt_set(s, "w", "iw", 0);
153 av_opt_set(s, "h", "ih", 0);
158 static int query_formats(AVFilterContext *ctx)
160 static const enum AVPixelFormat pixel_fmts[] = {
161 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
162 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
163 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
164 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
165 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
167 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
168 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
169 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12,
170 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
171 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
172 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
173 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
174 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
175 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
176 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
177 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
178 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP16,
183 ret = ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->inputs[0]->out_formats);
186 return ff_formats_ref(ff_make_format_list(pixel_fmts), &ctx->outputs[0]->in_formats);
189 static int config_props(AVFilterLink *outlink)
191 AVFilterContext *ctx = outlink->src;
192 AVFilterLink *inlink = outlink->src->inputs[0];
193 ZScaleContext *s = ctx->priv;
194 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
195 const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
197 double var_values[VARS_NB], res;
200 int factor_w, factor_h;
202 var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
203 var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
204 var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
205 var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
206 var_values[VAR_A] = (double) inlink->w / inlink->h;
207 var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
208 (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
209 var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
210 var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
211 var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
212 var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
213 var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
215 /* evaluate width and height */
216 av_expr_parse_and_eval(&res, (expr = s->w_expr),
217 var_names, var_values,
218 NULL, NULL, NULL, NULL, NULL, 0, ctx);
219 s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res;
220 if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr),
221 var_names, var_values,
222 NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
224 s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res;
225 /* evaluate again the width, as it may depend on the output height */
226 if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr),
227 var_names, var_values,
228 NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
235 /* Check if it is requested that the result has to be divisible by a some
236 * factor (w or h = -n with n being the factor). */
254 /* Make sure that the result is divisible by the factor we determined
255 * earlier. If no factor was set, it is nothing will happen as the default
258 w = av_rescale(h, inlink->w, inlink->h * factor_w) * factor_w;
260 h = av_rescale(w, inlink->h, inlink->w * factor_h) * factor_h;
262 /* Note that force_original_aspect_ratio may overwrite the previous set
263 * dimensions so that it is not divisible by the set factors anymore. */
264 if (s->force_original_aspect_ratio) {
265 int tmp_w = av_rescale(h, inlink->w, inlink->h);
266 int tmp_h = av_rescale(w, inlink->h, inlink->w);
268 if (s->force_original_aspect_ratio == 1) {
277 if (w > INT_MAX || h > INT_MAX ||
278 (h * inlink->w) > INT_MAX ||
279 (w * inlink->h) > INT_MAX)
280 av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
285 if (inlink->w == outlink->w &&
286 inlink->h == outlink->h &&
287 inlink->format == outlink->format)
292 if (inlink->sample_aspect_ratio.num){
293 outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
295 outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
297 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",
298 inlink ->w, inlink ->h, av_get_pix_fmt_name( inlink->format),
299 inlink->sample_aspect_ratio.num, inlink->sample_aspect_ratio.den,
300 outlink->w, outlink->h, av_get_pix_fmt_name(outlink->format),
301 outlink->sample_aspect_ratio.num, outlink->sample_aspect_ratio.den);
305 av_log(ctx, AV_LOG_ERROR,
306 "Error when evaluating the expression '%s'.\n"
307 "Maybe the expression for out_w:'%s' or for out_h:'%s' is self-referencing.\n",
308 expr, s->w_expr, s->h_expr);
312 static int print_zimg_error(AVFilterContext *ctx)
315 int err_code = zimg_get_last_error(err_msg, sizeof(err_msg));
317 av_log(ctx, AV_LOG_ERROR, "code %d: %s\n", err_code, err_msg);
322 static int convert_chroma_location(enum AVChromaLocation chroma_location)
324 switch (chroma_location) {
325 case AVCHROMA_LOC_UNSPECIFIED:
326 case AVCHROMA_LOC_LEFT:
327 return ZIMG_CHROMA_LEFT;
328 case AVCHROMA_LOC_CENTER:
329 return ZIMG_CHROMA_CENTER;
330 case AVCHROMA_LOC_TOPLEFT:
331 return ZIMG_CHROMA_TOP_LEFT;
332 case AVCHROMA_LOC_TOP:
333 return ZIMG_CHROMA_TOP;
334 case AVCHROMA_LOC_BOTTOMLEFT:
335 return ZIMG_CHROMA_BOTTOM_LEFT;
336 case AVCHROMA_LOC_BOTTOM:
337 return ZIMG_CHROMA_BOTTOM;
339 return ZIMG_CHROMA_LEFT;
342 static int convert_matrix(enum AVColorSpace colorspace)
344 switch (colorspace) {
346 return ZIMG_MATRIX_RGB;
347 case AVCOL_SPC_BT709:
348 return ZIMG_MATRIX_709;
349 case AVCOL_SPC_UNSPECIFIED:
350 return ZIMG_MATRIX_UNSPECIFIED;
351 case AVCOL_SPC_BT470BG:
352 return ZIMG_MATRIX_470BG;
353 case AVCOL_SPC_SMPTE170M:
354 return ZIMG_MATRIX_170M;
355 case AVCOL_SPC_YCGCO:
356 return ZIMG_MATRIX_YCGCO;
357 case AVCOL_SPC_BT2020_NCL:
358 return ZIMG_MATRIX_2020_NCL;
359 case AVCOL_SPC_BT2020_CL:
360 return ZIMG_MATRIX_2020_CL;
362 return ZIMG_MATRIX_UNSPECIFIED;
365 static int convert_trc(enum AVColorTransferCharacteristic color_trc)
368 case AVCOL_TRC_UNSPECIFIED:
369 return ZIMG_TRANSFER_UNSPECIFIED;
370 case AVCOL_TRC_BT709:
371 return ZIMG_TRANSFER_709;
372 case AVCOL_TRC_SMPTE170M:
373 return ZIMG_TRANSFER_601;
374 case AVCOL_TRC_LINEAR:
375 return ZIMG_TRANSFER_LINEAR;
376 case AVCOL_TRC_BT2020_10:
377 return ZIMG_TRANSFER_2020_10;
378 case AVCOL_TRC_BT2020_12:
379 return ZIMG_TRANSFER_2020_12;
381 return ZIMG_TRANSFER_UNSPECIFIED;
384 static int convert_primaries(enum AVColorPrimaries color_primaries)
386 switch (color_primaries) {
387 case AVCOL_PRI_UNSPECIFIED:
388 return ZIMG_PRIMARIES_UNSPECIFIED;
389 case AVCOL_PRI_BT709:
390 return ZIMG_PRIMARIES_709;
391 case AVCOL_PRI_SMPTE170M:
392 return ZIMG_PRIMARIES_170M;
393 case AVCOL_PRI_SMPTE240M:
394 return ZIMG_PRIMARIES_240M;
395 case AVCOL_PRI_BT2020:
396 return ZIMG_PRIMARIES_2020;
398 return ZIMG_PRIMARIES_UNSPECIFIED;
401 static int convert_range(enum AVColorRange color_range)
403 switch (color_range) {
404 case AVCOL_RANGE_UNSPECIFIED:
405 case AVCOL_RANGE_MPEG:
406 return ZIMG_RANGE_LIMITED;
407 case AVCOL_RANGE_JPEG:
408 return ZIMG_RANGE_FULL;
410 return ZIMG_RANGE_LIMITED;
413 static int filter_frame(AVFilterLink *link, AVFrame *in)
415 ZScaleContext *s = link->dst->priv;
416 AVFilterLink *outlink = link->dst->outputs[0];
417 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format);
418 const AVPixFmtDescriptor *odesc = av_pix_fmt_desc_get(outlink->format);
419 zimg_image_buffer_const src_buf = { ZIMG_API_VERSION };
420 zimg_image_buffer dst_buf = { ZIMG_API_VERSION };
426 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
429 return AVERROR(ENOMEM);
432 av_frame_copy_props(out, in);
433 out->width = outlink->w;
434 out->height = outlink->h;
436 if( in->width != link->w
437 || in->height != link->h
438 || in->format != link->format
439 || s->in_colorspace != in->colorspace
440 || s->in_trc != in->color_trc
441 || s->in_primaries != in->color_primaries
442 || s->in_range != in->color_range
443 || s->out_colorspace != out->colorspace
444 || s->out_trc != out->color_trc
445 || s->out_primaries != out->color_primaries
446 || s->out_range != out->color_range
447 || s->in_chromal != in->chroma_location
448 || s->out_chromal != out->chroma_location) {
449 snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
450 av_opt_set(s, "w", buf, 0);
451 snprintf(buf, sizeof(buf)-1, "%d", outlink->h);
452 av_opt_set(s, "h", buf, 0);
454 link->dst->inputs[0]->format = in->format;
455 link->dst->inputs[0]->w = in->width;
456 link->dst->inputs[0]->h = in->height;
458 if ((ret = config_props(outlink)) < 0) {
464 zimg_image_format_default(&s->src_format, ZIMG_API_VERSION);
465 zimg_image_format_default(&s->dst_format, ZIMG_API_VERSION);
466 zimg_graph_builder_params_default(&s->params, ZIMG_API_VERSION);
468 s->params.dither_type = s->dither;
469 s->params.cpu_type = ZIMG_CPU_AUTO;
470 s->params.resample_filter = s->filter;
471 s->params.resample_filter_uv = s->filter;
473 s->src_format.width = in->width;
474 s->src_format.height = in->height;
475 s->src_format.subsample_w = desc->log2_chroma_w;
476 s->src_format.subsample_h = desc->log2_chroma_h;
477 s->src_format.depth = desc->comp[0].depth;
478 s->src_format.pixel_type = desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
479 s->src_format.color_family = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
480 s->src_format.matrix_coefficients = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : s->colorspace_in == -1 ? convert_matrix(in->colorspace) : s->colorspace_in;
481 s->src_format.transfer_characteristics = s->trc_in == - 1 ? convert_trc(in->color_trc) : s->trc_in;
482 s->src_format.color_primaries = s->primaries_in == -1 ? convert_primaries(in->color_primaries) : s->primaries_in;
483 s->src_format.pixel_range = (desc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : s->range_in == -1 ? convert_range(in->color_range) : s->range_in;
484 s->src_format.chroma_location = s->chromal_in == -1 ? convert_chroma_location(in->chroma_location) : s->chromal_in;
486 s->dst_format.width = out->width;
487 s->dst_format.height = out->height;
488 s->dst_format.subsample_w = odesc->log2_chroma_w;
489 s->dst_format.subsample_h = odesc->log2_chroma_h;
490 s->dst_format.depth = odesc->comp[0].depth;
491 s->dst_format.pixel_type = odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
492 s->dst_format.color_family = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_COLOR_RGB : ZIMG_COLOR_YUV;
493 s->dst_format.matrix_coefficients = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_MATRIX_RGB : s->colorspace == -1 ? convert_matrix(out->colorspace) : s->colorspace;
494 s->dst_format.transfer_characteristics = s->trc == -1 ? convert_trc(out->color_trc) : s->trc;
495 s->dst_format.color_primaries = s->primaries == -1 ? convert_primaries(out->color_primaries) : s->primaries;
496 s->dst_format.pixel_range = (odesc->flags & AV_PIX_FMT_FLAG_RGB) ? ZIMG_RANGE_FULL : s->range == -1 ? convert_range(out->color_range) : s->range;
497 s->dst_format.chroma_location = s->chromal == -1 ? convert_chroma_location(out->chroma_location) : s->chromal;
499 if (s->colorspace != -1)
500 out->colorspace = (int)s->dst_format.matrix_coefficients;
502 if (s->primaries != -1)
503 out->color_primaries = (int)s->dst_format.color_primaries;
506 out->color_range = (int)s->dst_format.pixel_range + 1;
509 out->color_trc = (int)s->dst_format.transfer_characteristics;
511 if (s->chromal != -1)
512 out->chroma_location = (int)s->dst_format.chroma_location - 1;
514 zimg_filter_graph_free(s->graph);
515 s->graph = zimg_filter_graph_build(&s->src_format, &s->dst_format, &s->params);
517 ret = print_zimg_error(link->dst);
521 if ((ret = zimg_filter_graph_get_tmp_size(s->graph, &tmp_size))) {
522 ret = print_zimg_error(link->dst);
526 if (tmp_size > s->tmp_size) {
528 s->tmp = av_malloc(tmp_size);
530 ret = AVERROR(ENOMEM);
533 s->tmp_size = tmp_size;
536 s->in_colorspace = in->colorspace;
537 s->in_trc = in->color_trc;
538 s->in_primaries = in->color_primaries;
539 s->in_range = in->color_range;
540 s->out_colorspace = out->colorspace;
541 s->out_trc = out->color_trc;
542 s->out_primaries = out->color_primaries;
543 s->out_range = out->color_range;
545 if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
546 zimg_image_format_default(&s->alpha_src_format, ZIMG_API_VERSION);
547 zimg_image_format_default(&s->alpha_dst_format, ZIMG_API_VERSION);
548 zimg_graph_builder_params_default(&s->alpha_params, ZIMG_API_VERSION);
550 s->alpha_params.dither_type = s->dither;
551 s->alpha_params.cpu_type = ZIMG_CPU_AUTO;
552 s->alpha_params.resample_filter = s->filter;
554 s->alpha_src_format.width = in->width;
555 s->alpha_src_format.height = in->height;
556 s->alpha_src_format.depth = desc->comp[0].depth;
557 s->alpha_src_format.pixel_type = desc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
558 s->alpha_src_format.color_family = ZIMG_COLOR_GREY;
560 s->alpha_dst_format.width = out->width;
561 s->alpha_dst_format.height = out->height;
562 s->alpha_dst_format.depth = odesc->comp[0].depth;
563 s->alpha_dst_format.pixel_type = odesc->comp[0].depth > 8 ? ZIMG_PIXEL_WORD : ZIMG_PIXEL_BYTE;
564 s->alpha_dst_format.color_family = ZIMG_COLOR_GREY;
566 zimg_filter_graph_free(s->alpha_graph);
567 s->alpha_graph = zimg_filter_graph_build(&s->alpha_src_format, &s->alpha_dst_format, &s->alpha_params);
568 if (!s->alpha_graph) {
569 ret = print_zimg_error(link->dst);
575 if (s->colorspace != -1)
576 out->colorspace = (int)s->dst_format.matrix_coefficients;
578 if (s->primaries != -1)
579 out->color_primaries = (int)s->dst_format.color_primaries;
582 out->color_range = (int)s->dst_format.pixel_range;
585 out->color_trc = (int)s->dst_format.transfer_characteristics;
587 av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
588 (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
589 (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
592 for (plane = 0; plane < 3; plane++) {
593 int p = desc->comp[plane].plane;
594 src_buf.plane[plane].data = in->data[p];
595 src_buf.plane[plane].stride = in->linesize[p];
596 src_buf.plane[plane].mask = -1;
598 p = odesc->comp[plane].plane;
599 dst_buf.plane[plane].data = out->data[p];
600 dst_buf.plane[plane].stride = out->linesize[p];
601 dst_buf.plane[plane].mask = -1;
604 ret = zimg_filter_graph_process(s->graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
606 print_zimg_error(link->dst);
610 if (desc->flags & AV_PIX_FMT_FLAG_ALPHA && odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
611 src_buf.plane[0].data = in->data[3];
612 src_buf.plane[0].stride = in->linesize[3];
613 src_buf.plane[0].mask = -1;
615 dst_buf.plane[0].data = out->data[3];
616 dst_buf.plane[0].stride = out->linesize[3];
617 dst_buf.plane[0].mask = -1;
619 ret = zimg_filter_graph_process(s->alpha_graph, &src_buf, &dst_buf, s->tmp, 0, 0, 0, 0);
621 print_zimg_error(link->dst);
624 } else if (odesc->flags & AV_PIX_FMT_FLAG_ALPHA) {
627 for (y = 0; y < outlink->h; y++)
628 memset(out->data[3] + y * out->linesize[3], 0xff, outlink->w);
638 return ff_filter_frame(outlink, out);
641 static void uninit(AVFilterContext *ctx)
643 ZScaleContext *s = ctx->priv;
645 zimg_filter_graph_free(s->graph);
650 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
651 char *res, int res_len, int flags)
653 ZScaleContext *s = ctx->priv;
656 if ( !strcmp(cmd, "width") || !strcmp(cmd, "w")
657 || !strcmp(cmd, "height") || !strcmp(cmd, "h")) {
661 AVFilterLink *outlink = ctx->outputs[0];
663 av_opt_set(s, cmd, args, 0);
664 if ((ret = config_props(outlink)) < 0) {
669 ret = AVERROR(ENOSYS);
674 #define OFFSET(x) offsetof(ZScaleContext, x)
675 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
677 static const AVOption zscale_options[] = {
678 { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
679 { "width", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
680 { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
681 { "height", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
682 { "size", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
683 { "s", "set video size", OFFSET(size_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
684 { "dither", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
685 { "d", "set dither type", OFFSET(dither), AV_OPT_TYPE_INT, {.i64 = 0}, 0, ZIMG_DITHER_ERROR_DIFFUSION, FLAGS, "dither" },
686 { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_NONE}, 0, 0, FLAGS, "dither" },
687 { "ordered", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ORDERED}, 0, 0, FLAGS, "dither" },
688 { "random", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_RANDOM}, 0, 0, FLAGS, "dither" },
689 { "error_diffusion", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_DITHER_ERROR_DIFFUSION}, 0, 0, FLAGS, "dither" },
690 { "filter", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
691 { "f", "set filter type", OFFSET(filter), AV_OPT_TYPE_INT, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, ZIMG_RESIZE_LANCZOS, FLAGS, "filter" },
692 { "point", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_POINT}, 0, 0, FLAGS, "filter" },
693 { "bilinear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BILINEAR}, 0, 0, FLAGS, "filter" },
694 { "bicubic", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_BICUBIC}, 0, 0, FLAGS, "filter" },
695 { "spline16", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE16}, 0, 0, FLAGS, "filter" },
696 { "spline36", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_SPLINE36}, 0, 0, FLAGS, "filter" },
697 { "lanczos", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RESIZE_LANCZOS}, 0, 0, FLAGS, "filter" },
698 { "range", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
699 { "r", "set color range", OFFSET(range), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
700 { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "range" },
701 { "limited", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_LIMITED}, 0, 0, FLAGS, "range" },
702 { "full", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_RANGE_FULL}, 0, 0, FLAGS, "range" },
703 { "primaries", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
704 { "p", "set color primaries", OFFSET(primaries), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
705 { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "primaries" },
706 { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_709}, 0, 0, FLAGS, "primaries" },
707 { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_UNSPECIFIED}, 0, 0, FLAGS, "primaries" },
708 { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_170M}, 0, 0, FLAGS, "primaries" },
709 { "240m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_240M}, 0, 0, FLAGS, "primaries" },
710 { "2020", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_PRIMARIES_2020}, 0, 0, FLAGS, "primaries" },
711 { "transfer", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
712 { "t", "set transfer characteristic", OFFSET(trc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
713 { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "transfer" },
714 { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_709}, 0, 0, FLAGS, "transfer" },
715 { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_UNSPECIFIED}, 0, 0, FLAGS, "transfer" },
716 { "601", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_601}, 0, 0, FLAGS, "transfer" },
717 { "linear", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_LINEAR}, 0, 0, FLAGS, "transfer" },
718 { "2020_10", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_10}, 0, 0, FLAGS, "transfer" },
719 { "2020_12", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_TRANSFER_2020_12}, 0, 0, FLAGS, "transfer" },
720 { "matrix", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
721 { "m", "set colorspace matrix", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
722 { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "matrix" },
723 { "709", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_709}, 0, 0, FLAGS, "matrix" },
724 { "unspecified", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_UNSPECIFIED}, 0, 0, FLAGS, "matrix" },
725 { "470bg", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_470BG}, 0, 0, FLAGS, "matrix" },
726 { "170m", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_170M}, 0, 0, FLAGS, "matrix" },
727 { "ycgco", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_YCGCO}, 0, 0, FLAGS, "matrix" },
728 { "2020_ncl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_NCL}, 0, 0, FLAGS, "matrix" },
729 { "2020_cl", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_MATRIX_2020_CL}, 0, 0, FLAGS, "matrix" },
730 { "rangein", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
731 { "rin", "set input color range", OFFSET(range_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_RANGE_FULL, FLAGS, "range" },
732 { "primariesin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
733 { "pin", "set input color primaries", OFFSET(primaries_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_PRIMARIES_2020, FLAGS, "primaries" },
734 { "transferin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
735 { "tin", "set input transfer characteristic", OFFSET(trc_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_TRANSFER_2020_12, FLAGS, "transfer" },
736 { "matrixin", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
737 { "min", "set input colorspace matrix", OFFSET(colorspace_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_MATRIX_2020_CL, FLAGS, "matrix" },
738 { "chromal", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
739 { "c", "set output chroma location", OFFSET(chromal), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
740 { "input", 0, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, FLAGS, "chroma" },
741 { "left", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_LEFT}, 0, 0, FLAGS, "chroma" },
742 { "center", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_CENTER}, 0, 0, FLAGS, "chroma" },
743 { "topleft", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP_LEFT}, 0, 0, FLAGS, "chroma" },
744 { "top", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_TOP}, 0, 0, FLAGS, "chroma" },
745 { "bottomleft",0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM_LEFT}, 0, 0, FLAGS, "chroma" },
746 { "bottom", 0, 0, AV_OPT_TYPE_CONST, {.i64 = ZIMG_CHROMA_BOTTOM}, 0, 0, FLAGS, "chroma" },
747 { "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
748 { "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
752 static const AVClass zscale_class = {
753 .class_name = "zscale",
754 .item_name = av_default_item_name,
755 .option = zscale_options,
756 .version = LIBAVUTIL_VERSION_INT,
757 .category = AV_CLASS_CATEGORY_FILTER,
760 static const AVFilterPad avfilter_vf_zscale_inputs[] = {
763 .type = AVMEDIA_TYPE_VIDEO,
764 .filter_frame = filter_frame,
769 static const AVFilterPad avfilter_vf_zscale_outputs[] = {
772 .type = AVMEDIA_TYPE_VIDEO,
773 .config_props = config_props,
778 AVFilter ff_vf_zscale = {
780 .description = NULL_IF_CONFIG_SMALL("Apply resizing, colorspace and bit depth conversion."),
781 .init_dict = init_dict,
782 .query_formats = query_formats,
783 .priv_size = sizeof(ZScaleContext),
784 .priv_class = &zscale_class,
786 .inputs = avfilter_vf_zscale_inputs,
787 .outputs = avfilter_vf_zscale_outputs,
788 .process_command = process_command,