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lavfi/vf_scale_vaapi: add scaling mode setting support.
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>
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@ -35,10 +35,27 @@ typedef struct ScaleVAAPIContext {
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char *output_format_string;
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int mode;
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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 const char *scale_vaapi_mode_name(int mode)
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{
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switch (mode) {
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#define D(name) case VA_FILTER_SCALING_ ## name: return #name
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D(DEFAULT);
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D(FAST);
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D(HQ);
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D(NL_ANAMORPHIC);
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#undef D
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default:
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return "Invalid";
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}
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}
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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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@ -70,6 +87,7 @@ static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
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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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ScaleVAAPIContext *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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@ -119,7 +137,7 @@ static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
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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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params.filter_flags = ctx->mode;
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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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@ -131,9 +149,10 @@ static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
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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_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64"), mode: %s.\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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output_frame->width, output_frame->height, output_frame->pts,
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scale_vaapi_mode_name(ctx->mode));
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return ff_filter_frame(outlink, output_frame);
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@ -174,6 +193,17 @@ static const AVOption scale_vaapi_options[] = {
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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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{ "mode", "Scaling mode",
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OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = VA_FILTER_SCALING_HQ },
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0, VA_FILTER_SCALING_NL_ANAMORPHIC, FLAGS, "mode" },
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{ "default", "Use the default (depend on the driver) scaling algorithm",
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0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_DEFAULT }, 0, 0, FLAGS, "mode" },
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{ "fast", "Use fast scaling algorithm",
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0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_FAST }, 0, 0, FLAGS, "mode" },
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{ "hq", "Use high quality scaling algorithm",
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0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_HQ }, 0, 0, FLAGS, "mode" },
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{ "nl_anamorphic", "Use nolinear anamorphic scaling algorithm",
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0, AV_OPT_TYPE_CONST, { .i64 = VA_FILTER_SCALING_NL_ANAMORPHIC }, 0, 0, FLAGS, "mode" },
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{ NULL },
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};
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