diff --git a/configure b/configure index 55f1fc354d..4cd4fbecb7 100755 --- a/configure +++ b/configure @@ -3956,6 +3956,7 @@ vstack_qsv_filter_deps="libmfx" vstack_qsv_filter_select="qsvvpp" xstack_qsv_filter_deps="libmfx" xstack_qsv_filter_select="qsvvpp" +pad_vaapi_filter_deps="vaapi_1" # examples avio_http_serve_files_deps="avformat avutil fork" diff --git a/doc/filters.texi b/doc/filters.texi index bfa8ccec8b..8599bc4ffe 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -27955,6 +27955,83 @@ first input stream. For the syntax of this option, check the See @ref{xstack}. @end table +@section pad_vaapi + +Add paddings to the input image, and place the original input at the +provided @var{x}, @var{y} coordinates. + +It accepts the following options: + +@table @option +@item width, w +@item height, h +Specify an expression for the size of the output image with the +paddings added. If the value for @var{width} or @var{height} is 0, the +corresponding input size is used for the output. + +The @var{width} expression can reference the value set by the +@var{height} expression, and vice versa. + +The default value of @var{width} and @var{height} is 0. + +@item x +@item y +Specify the offsets to place the input image at within the padded area, +with respect to the top/left border of the output image. + +The @var{x} expression can reference the value set by the @var{y} +expression, and vice versa. + +The default value of @var{x} and @var{y} is 0. + +If @var{x} or @var{y} evaluate to a negative number, they'll be changed +so the input image is centered on the padded area. + +@item color +Specify the color of the padded area. For the syntax of this option, +check the @ref{color syntax,,"Color" section in the ffmpeg-utils +manual,ffmpeg-utils}. + +@item aspect +Pad to an aspect instead to a resolution. +@end table + +The value for the @var{width}, @var{height}, @var{x}, and @var{y} +options are expressions containing the following constants: + +@table @option +@item in_w +@item in_h +The input video width and height. + +@item iw +@item ih +These are the same as @var{in_w} and @var{in_h}. + +@item out_w +@item out_h +The output width and height (the size of the padded area), as +specified by the @var{width} and @var{height} expressions. + +@item ow +@item oh +These are the same as @var{out_w} and @var{out_h}. + +@item x +@item y +The x and y offsets as specified by the @var{x} and @var{y} +expressions, or NAN if not yet specified. + +@item a +same as @var{iw} / @var{ih} + +@item sar +input sample aspect ratio + +@item dar +input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar} +@end table + @c man end VAAPI VIDEO FILTERS @chapter Vulkan Video Filters diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 994d9773ba..babcc7b676 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -581,6 +581,7 @@ OBJS-$(CONFIG_XSTACK_VAAPI_FILTER) += vf_stack_vaapi.o framesync.o vaa OBJS-$(CONFIG_HSTACK_QSV_FILTER) += vf_stack_qsv.o framesync.o OBJS-$(CONFIG_VSTACK_QSV_FILTER) += vf_stack_qsv.o framesync.o OBJS-$(CONFIG_XSTACK_QSV_FILTER) += vf_stack_qsv.o framesync.o +OBJS-$(CONFIG_PAD_VAAPI_FILTER) += vf_pad_vaapi.o vaapi_vpp.o OBJS-$(CONFIG_ALLRGB_FILTER) += vsrc_testsrc.o OBJS-$(CONFIG_ALLYUV_FILTER) += vsrc_testsrc.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 149bf50997..1e024b3376 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -546,6 +546,7 @@ extern const AVFilter ff_vf_xstack_vaapi; extern const AVFilter ff_vf_hstack_qsv; extern const AVFilter ff_vf_vstack_qsv; extern const AVFilter ff_vf_xstack_qsv; +extern const AVFilter ff_vf_pad_vaapi; extern const AVFilter ff_vsrc_allrgb; extern const AVFilter ff_vsrc_allyuv; diff --git a/libavfilter/vf_pad_vaapi.c b/libavfilter/vf_pad_vaapi.c new file mode 100644 index 0000000000..98f6285222 --- /dev/null +++ b/libavfilter/vf_pad_vaapi.c @@ -0,0 +1,283 @@ +/* + * 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/colorspace.h" +#include "libavutil/eval.h" +#include "libavutil/opt.h" + +#include "avfilter.h" +#include "internal.h" +#include "vaapi_vpp.h" +#include "video.h" + +static const char *const var_names[] = { + "in_w", "iw", + "in_h", "ih", + "out_w", "ow", + "out_h", "oh", + "x", + "y", + "a", + "sar", + "dar", + 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_X, + VAR_Y, + VAR_A, + VAR_SAR, + VAR_DAR, + VARS_NB +}; + +typedef struct PadVAAPIContext { + VAAPIVPPContext vpp_ctx; // must be the first field + VARectangle rect; + + char *w_expr; + char *h_expr; + char *x_expr; + char *y_expr; + AVRational aspect; + + int w, h; + int x, y; + uint8_t pad_rgba[4]; +} PadVAAPIContext; + +static int pad_vaapi_config_output(AVFilterLink *outlink) +{ + AVFilterContext *avctx = outlink->src; + AVFilterLink *inlink = avctx->inputs[0]; + PadVAAPIContext *ctx = avctx->priv; + VAAPIVPPContext *vpp_ctx = avctx->priv; + AVRational adjusted_aspect = ctx->aspect; + double var_values[VARS_NB], res; + int err, ret; + char *expr; + + 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]; + + av_expr_parse_and_eval(&res, (expr = ctx->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx); + ctx->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = ctx->h_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + return ret; + ctx->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; + if (!ctx->h) + var_values[VAR_OUT_H] = var_values[VAR_OH] = ctx->h = inlink->h; + + /* evaluate the width again, as it may depend on the evaluated output height */ + if ((ret = av_expr_parse_and_eval(&res, (expr = ctx->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + return ret; + ctx->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + if (!ctx->w) + var_values[VAR_OUT_W] = var_values[VAR_OW] = ctx->w = inlink->w; + + if (adjusted_aspect.num && adjusted_aspect.den) { + adjusted_aspect = av_div_q(adjusted_aspect, inlink->sample_aspect_ratio); + if (ctx->h < av_rescale(ctx->w, adjusted_aspect.den, adjusted_aspect.num)) { + ctx->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = av_rescale(ctx->w, adjusted_aspect.den, adjusted_aspect.num); + } else { + ctx->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = av_rescale(ctx->h, adjusted_aspect.num, adjusted_aspect.den); + } + } + + /* evaluate x and y */ + av_expr_parse_and_eval(&res, (expr = ctx->x_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx); + ctx->x = var_values[VAR_X] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = ctx->y_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + return ret; + ctx->y = var_values[VAR_Y] = res; + /* evaluate x again, as it may depend on the evaluated y value */ + if ((ret = av_expr_parse_and_eval(&res, (expr = ctx->x_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + return ret; + ctx->x = var_values[VAR_X] = res; + + if (ctx->x < 0 || ctx->x + inlink->w > ctx->w) + ctx->x = var_values[VAR_X] = (ctx->w - inlink->w) / 2; + if (ctx->y < 0 || ctx->y + inlink->h > ctx->h) + ctx->y = var_values[VAR_Y] = (ctx->h - inlink->h) / 2; + + /* sanity check params */ + if (ctx->w < inlink->w || ctx->h < inlink->h) { + av_log(ctx, AV_LOG_ERROR, "Padded dimensions cannot be smaller than input dimensions.\n"); + return AVERROR(EINVAL); + } + + if (ctx->w > avctx->inputs[0]->w) { + vpp_ctx->output_width = ctx->w; + } else { + vpp_ctx->output_width = avctx->inputs[0]->w; + } + + if (ctx->h > avctx->inputs[0]->h) { + vpp_ctx->output_height = ctx->h; + } else { + vpp_ctx->output_height = avctx->inputs[0]->h; + } + + if (ctx->x + avctx->inputs[0]->w > vpp_ctx->output_width || + ctx->y + avctx->inputs[0]->h > vpp_ctx->output_height) { + return AVERROR(EINVAL); + } + + err = ff_vaapi_vpp_config_output(outlink); + if (err < 0) + return err; + + return 0; +} + +static int pad_vaapi_filter_frame(AVFilterLink *link, AVFrame *input_frame) +{ + AVFilterContext *avctx = link->dst; + AVFilterLink *outlink = avctx->outputs[0]; + VAAPIVPPContext *vpp_ctx = avctx->priv; + PadVAAPIContext *pad_ctx = avctx->priv; + AVFrame *output_frame = NULL; + VAProcPipelineParameterBuffer params; + int err; + + if (!input_frame->hw_frames_ctx || + vpp_ctx->va_context == VA_INVALID_ID) { + err = AVERROR(EINVAL); + goto fail; + } + + output_frame = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!output_frame) { + err = AVERROR(ENOMEM); + goto fail; + } + + err = av_frame_copy_props(output_frame, input_frame); + if (err < 0) + goto fail; + + err = ff_vaapi_vpp_init_params(avctx, ¶ms, + input_frame, output_frame); + if (err < 0) + goto fail; + + pad_ctx->rect.x = pad_ctx->x; + pad_ctx->rect.y = pad_ctx->y; + pad_ctx->rect.width = link->w; + pad_ctx->rect.height = link->h; + params.output_region = &pad_ctx->rect; + + params.output_background_color = (pad_ctx->pad_rgba[3] << 24 | + pad_ctx->pad_rgba[0] << 16 | + pad_ctx->pad_rgba[1] << 8 | + pad_ctx->pad_rgba[2]); + + err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_frame); + if (err < 0) + goto fail; + + av_frame_free(&input_frame); + + return ff_filter_frame(outlink, output_frame); + +fail: + av_frame_free(&input_frame); + av_frame_free(&output_frame); + return err; +} + +static av_cold int pad_vaapi_init(AVFilterContext *avctx) +{ + VAAPIVPPContext *vpp_ctx = avctx->priv; + + ff_vaapi_vpp_ctx_init(avctx); + vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit; + vpp_ctx->output_format = AV_PIX_FMT_NONE; + + return 0; +} + +#define OFFSET(x) offsetof(PadVAAPIContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +static const AVOption pad_vaapi_options[] = { + { "width", "set the pad area width", OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, 0, 0, FLAGS }, + { "w", "set the pad area width", OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, 0, 0, FLAGS }, + { "height", "set the pad area height", OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, 0, 0, FLAGS }, + { "h", "set the pad area height", OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, 0, 0, FLAGS }, + { "x", "set the x offset for the input image position", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, INT16_MAX, FLAGS }, + { "y", "set the y offset for the input image position", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, INT16_MAX, FLAGS }, + { "color", "set the color of the padded area border", OFFSET(pad_rgba), AV_OPT_TYPE_COLOR, { .str = "black" }, 0, 0, FLAGS }, + { "aspect", "pad to fit an aspect instead of a resolution", OFFSET(aspect), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, INT16_MAX, FLAGS }, + { NULL } +}; + +AVFILTER_DEFINE_CLASS(pad_vaapi); + +static const AVFilterPad pad_vaapi_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = pad_vaapi_filter_frame, + .config_props = &ff_vaapi_vpp_config_input, + }, +}; + +static const AVFilterPad pad_vaapi_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = &pad_vaapi_config_output, + }, +}; + +const AVFilter ff_vf_pad_vaapi = { + .name = "pad_vaapi", + .description = NULL_IF_CONFIG_SMALL("Pad the input video."), + .priv_size = sizeof(PadVAAPIContext), + .priv_class = &pad_vaapi_class, + .init = &pad_vaapi_init, + .uninit = &ff_vaapi_vpp_ctx_uninit, + FILTER_INPUTS(pad_vaapi_inputs), + FILTER_OUTPUTS(pad_vaapi_outputs), + FILTER_QUERY_FUNC(&ff_vaapi_vpp_query_formats), + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, +};