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