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lavfi/vf_scale_vaapi: add scaling mode setting support.

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before this change, scale_vaapi hard coding the scaling mode, add a
new option "mode" to setting the scaling mode, it can be use to change
scaling algorithm for performance/quality trade off.

Note: VA_FILTER_SCALING_NL_ANAMORPHIC(nolinear ananorphic scaling
algorithm) doesn't support by i965/iHD driver now, add this just for
completeness.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
This commit is contained in:
Jun Zhao 2018-09-12 20:14:58 +08:00 committed by Jun Zhao
parent 2349260330
commit a271025215
1 changed files with 33 additions and 3 deletions
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36
libavfilter/vf_scale_vaapi.c
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@ -35,10 +35,27 @@ typedef struct ScaleVAAPIContext {
char *output_format_string;
int mode;
char *w_expr; // width expression string
char *h_expr; // height expression string
} 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];
@ -70,6 +87,7 @@ 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;
VASurfaceID input_surface, output_surface;
VAProcPipelineParameterBuffer params;
@ -119,7 +137,7 @@ static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
params.output_color_standard = params.surface_color_standard;
params.pipeline_flags = 0;
params.filter_flags = VA_FILTER_SCALING_HQ;
params.filter_flags = ctx->mode;
err = ff_vaapi_vpp_render_picture(avctx, &params, output_surface);
if (err < 0)
@ -131,9 +149,10 @@ static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
av_frame_free(&input_frame);
av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
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);
output_frame->width, output_frame->height, output_frame->pts,
scale_vaapi_mode_name(ctx->mode));
return ff_filter_frame(outlink, output_frame);
@ -174,6 +193,17 @@ static const AVOption scale_vaapi_options[] = {
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" },
{ NULL },
};