/*
* 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_eval.h"
#include "video.h"
#include "vaapi_vpp.h"
typedef struct ScaleVAAPIContext {
VAAPIVPPContext vpp_ctx; // must be the first field
char *output_format_string;
int mode;
char *w_expr; // width expression string
char *h_expr; // height expression string
int force_original_aspect_ratio;
int force_divisible_by;
char *colour_primaries_string;
char *colour_transfer_string;
char *colour_matrix_string;
int colour_range;
char *chroma_location_string;
enum AVColorPrimaries colour_primaries;
enum AVColorTransferCharacteristic colour_transfer;
enum AVColorSpace colour_matrix;
enum AVChromaLocation chroma_location;
} ScaleVAAPIContext;
static const char *scale_vaapi_mode_name(int mode)
{
switch (mode) {
#define D(name) case VA_FILTER_SCALING_ ## name: return #name
D(DEFAULT);
D(FAST);
D(HQ);
D(NL_ANAMORPHIC);
#undef D
default:
return "Invalid";
}
}
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;
ff_scale_adjust_dimensions(inlink, &vpp_ctx->output_width, &vpp_ctx->output_height,
ctx->force_original_aspect_ratio, ctx->force_divisible_by);
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;
ScaleVAAPIContext *ctx = avctx->priv;
AVFrame *output_frame = NULL;
VAProcPipelineParameterBuffer params;
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);
output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
vpp_ctx->output_height);
if (!output_frame) {
err = AVERROR(ENOMEM);
goto fail;
}
err = av_frame_copy_props(output_frame, input_frame);
if (err < 0)
goto fail;
if (ctx->colour_primaries != AVCOL_PRI_UNSPECIFIED)
output_frame->color_primaries = ctx->colour_primaries;
if (ctx->colour_transfer != AVCOL_TRC_UNSPECIFIED)
output_frame->color_trc = ctx->colour_transfer;
if (ctx->colour_matrix != AVCOL_SPC_UNSPECIFIED)
output_frame->colorspace = ctx->colour_matrix;
if (ctx->colour_range != AVCOL_RANGE_UNSPECIFIED)
output_frame->color_range = ctx->colour_range;
if (ctx->chroma_location != AVCHROMA_LOC_UNSPECIFIED)
output_frame->chroma_location = ctx->chroma_location;
err = ff_vaapi_vpp_init_params(avctx, ¶ms,
input_frame, output_frame);
if (err < 0)
goto fail;
params.filter_flags |= ctx->mode;
err = ff_vaapi_vpp_render_picture(avctx, ¶ms, output_frame);
if (err < 0)
goto fail;
av_frame_free(&input_frame);
av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64"), mode: %s.\n",
av_get_pix_fmt_name(output_frame->format),
output_frame->width, output_frame->height, output_frame->pts,
scale_vaapi_mode_name(ctx->mode));
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;
}
#define STRING_OPTION(var_name, func_name, default_value) do { \
if (ctx->var_name ## _string) { \
int var = av_ ## func_name ## _from_name(ctx->var_name ## _string); \
if (var < 0) { \
av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
return AVERROR(EINVAL); \
} \
ctx->var_name = var; \
} else { \
ctx->var_name = default_value; \
} \
} while (0)
STRING_OPTION(colour_primaries, color_primaries, AVCOL_PRI_UNSPECIFIED);
STRING_OPTION(colour_transfer, color_transfer, AVCOL_TRC_UNSPECIFIED);
STRING_OPTION(colour_matrix, color_space, AVCOL_SPC_UNSPECIFIED);
STRING_OPTION(chroma_location, chroma_location, AVCHROMA_LOC_UNSPECIFIED);
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 },
{ "mode", "Scaling mode",
OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = VA_FILTER_SCALING_HQ },
0, VA_FILTER_SCALING_NL_ANAMORPHIC, FLAGS, "mode" },
{ "default", "Use the default (depend on the driver) scaling algorithm",
0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_DEFAULT }, 0, 0, FLAGS, "mode" },
{ "fast", "Use fast scaling algorithm",
0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_FAST }, 0, 0, FLAGS, "mode" },
{ "hq", "Use high quality scaling algorithm",
0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_HQ }, 0, 0, FLAGS, "mode" },
{ "nl_anamorphic", "Use nolinear anamorphic scaling algorithm",
0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_NL_ANAMORPHIC }, 0, 0, FLAGS, "mode" },
// These colour properties match the ones of the same name in vf_scale.
{ "out_color_matrix", "Output colour matrix coefficient set",
OFFSET(colour_matrix_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
{ "out_range", "Output colour range",
OFFSET(colour_range), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_JPEG, FLAGS, "range" },
{ "full", "Full range",
0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
{ "limited", "Limited range",
0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
{ "jpeg", "Full range",
0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
{ "mpeg", "Limited range",
0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
{ "tv", "Limited range",
0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" },
{ "pc", "Full range",
0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" },
// These colour properties are new here.
{ "out_color_primaries", "Output colour primaries",
OFFSET(colour_primaries_string), AV_OPT_TYPE_STRING,
{ .str = NULL }, .flags = FLAGS },
{ "out_color_transfer", "Output colour transfer characteristics",
OFFSET(colour_transfer_string), AV_OPT_TYPE_STRING,
{ .str = NULL }, .flags = FLAGS },
{ "out_chroma_location", "Output chroma sample location",
OFFSET(chroma_location_string), AV_OPT_TYPE_STRING,
{ .str = NULL }, .flags = FLAGS },
{ "force_original_aspect_ratio", "decrease or increase w/h if necessary to keep the original AR", OFFSET(force_original_aspect_ratio), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, FLAGS, "force_oar" },
{ "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, "force_oar" },
{ "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, "force_oar" },
{ "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
{ "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1}, 1, 256, 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,
};