mirror of https://git.ffmpeg.org/ffmpeg.git
213 lines
6.8 KiB
C
213 lines
6.8 KiB
C
/*
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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 <string.h>
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#include "libavutil/avassert.h"
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#include "libavutil/mem.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 "formats.h"
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#include "internal.h"
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#include "scale.h"
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#include "video.h"
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#include "vaapi_vpp.h"
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typedef struct ScaleVAAPIContext {
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VAAPIVPPContext vpp_ctx; // must be the first field
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char *output_format_string;
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char *w_expr; // width expression string
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char *h_expr; // height expression string
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} ScaleVAAPIContext;
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static int scale_vaapi_config_output(AVFilterLink *outlink)
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{
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AVFilterLink *inlink = outlink->src->inputs[0];
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AVFilterContext *avctx = outlink->src;
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VAAPIVPPContext *vpp_ctx = avctx->priv;
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ScaleVAAPIContext *ctx = avctx->priv;
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int err;
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if ((err = ff_scale_eval_dimensions(ctx,
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ctx->w_expr, ctx->h_expr,
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inlink, outlink,
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&vpp_ctx->output_width, &vpp_ctx->output_height)) < 0)
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return err;
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err = ff_vaapi_vpp_config_output(outlink);
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if (err < 0)
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return err;
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if (inlink->sample_aspect_ratio.num)
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outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h * inlink->w, outlink->w * inlink->h}, inlink->sample_aspect_ratio);
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else
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outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
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return 0;
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}
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static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
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{
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AVFilterContext *avctx = inlink->dst;
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AVFilterLink *outlink = avctx->outputs[0];
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VAAPIVPPContext *vpp_ctx = avctx->priv;
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AVFrame *output_frame = NULL;
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VASurfaceID input_surface, output_surface;
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VAProcPipelineParameterBuffer params;
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VARectangle input_region;
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int err;
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av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
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av_get_pix_fmt_name(input_frame->format),
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input_frame->width, input_frame->height, input_frame->pts);
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if (vpp_ctx->va_context == VA_INVALID_ID)
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return AVERROR(EINVAL);
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input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
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av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for scale input.\n",
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input_surface);
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output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
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vpp_ctx->output_height);
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if (!output_frame) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3];
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av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for scale output.\n",
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output_surface);
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memset(¶ms, 0, sizeof(params));
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input_region = (VARectangle) {
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.x = input_frame->crop_left,
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.y = input_frame->crop_top,
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.width = input_frame->width -
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(input_frame->crop_left + input_frame->crop_right),
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.height = input_frame->height -
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(input_frame->crop_top + input_frame->crop_bottom),
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};
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params.surface = input_surface;
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params.surface_region = &input_region;
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params.surface_color_standard =
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ff_vaapi_vpp_colour_standard(input_frame->colorspace);
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params.output_region = 0;
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params.output_background_color = 0xff000000;
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params.output_color_standard = params.surface_color_standard;
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params.pipeline_flags = 0;
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params.filter_flags = VA_FILTER_SCALING_HQ;
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err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_surface);
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if (err < 0)
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goto fail;
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err = av_frame_copy_props(output_frame, input_frame);
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if (err < 0)
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goto fail;
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av_frame_free(&input_frame);
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av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
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av_get_pix_fmt_name(output_frame->format),
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output_frame->width, output_frame->height, output_frame->pts);
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return ff_filter_frame(outlink, output_frame);
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fail:
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av_frame_free(&input_frame);
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av_frame_free(&output_frame);
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return err;
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}
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static av_cold int scale_vaapi_init(AVFilterContext *avctx)
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{
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VAAPIVPPContext *vpp_ctx = avctx->priv;
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ScaleVAAPIContext *ctx = avctx->priv;
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ff_vaapi_vpp_ctx_init(avctx);
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vpp_ctx->pipeline_uninit = ff_vaapi_vpp_pipeline_uninit;
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if (ctx->output_format_string) {
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vpp_ctx->output_format = av_get_pix_fmt(ctx->output_format_string);
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if (vpp_ctx->output_format == AV_PIX_FMT_NONE) {
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av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
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return AVERROR(EINVAL);
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}
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} else {
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// Use the input format once that is configured.
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vpp_ctx->output_format = AV_PIX_FMT_NONE;
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}
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return 0;
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}
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#define OFFSET(x) offsetof(ScaleVAAPIContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption scale_vaapi_options[] = {
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{ "w", "Output video width",
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OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
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{ "h", "Output video height",
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OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
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{ "format", "Output video format (software format of hardware frames)",
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OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
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{ NULL },
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};
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AVFILTER_DEFINE_CLASS(scale_vaapi);
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static const AVFilterPad scale_vaapi_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 = &scale_vaapi_filter_frame,
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.config_props = &ff_vaapi_vpp_config_input,
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},
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{ NULL }
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};
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static const AVFilterPad scale_vaapi_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = &scale_vaapi_config_output,
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},
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{ NULL }
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};
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AVFilter ff_vf_scale_vaapi = {
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.name = "scale_vaapi",
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.description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."),
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.priv_size = sizeof(ScaleVAAPIContext),
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.init = &scale_vaapi_init,
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.uninit = &ff_vaapi_vpp_ctx_uninit,
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.query_formats = &ff_vaapi_vpp_query_formats,
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.inputs = scale_vaapi_inputs,
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.outputs = scale_vaapi_outputs,
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.priv_class = &scale_vaapi_class,
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
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};
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