From: Niklas Haas <g...@haasn.dev>
Useful to speed up shader compilation. May significantly lower startup
times, in particular with large or complex shaders.
Sponsored-by: nxtedition
---
doc/filters.texi | 5 +++++
libavfilter/vf_libplacebo.c | 29 +++++++++++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/doc/filters.texi b/doc/filters.texi
index 679b71f290..66cb3e6c20 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -16307,6 +16307,11 @@ as a list of @var{key}=@var{value} pairs separated by
':'. The following example
shows how to configure a custom filter kernel ("EWA LanczosSharp") and use it
to double the input image resolution:
+@item shader_cache_dir
+If set to the path of a directory that exists, libplacebo will store and use
+cached shader objects in this directory. This cache is not cleaned up
+automatically.
+
@example
-vf
"libplacebo=w=iw*2:h=ih*2:extra_opts='upscaler=custom\:upscaler_preset=ewa_lanczos\:upscaler_blur=0.9812505644269356'"
@end example
diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c
index 86e1f43dea..ca7d9e253a 100644
--- a/libavfilter/vf_libplacebo.c
+++ b/libavfilter/vf_libplacebo.c
@@ -195,6 +195,11 @@ typedef struct LibplaceboContext {
int color_trc;
AVDictionary *extra_opts;
+#if PL_API_VER >= 351
+ pl_cache cache;
+ char *shader_cache_dir;
+#endif
+
int have_hwdevice;
/* pl_render_params */
@@ -522,6 +527,21 @@ static int libplacebo_init(AVFilterContext *avctx)
return AVERROR(ENOMEM);
}
+#if PL_API_VER >= 351
+ if (s->shader_cache_dir && s->shader_cache_dir[0]) {
+ s->cache = pl_cache_create(pl_cache_params(
+ .log = s->log,
+ .get = pl_cache_get_dir,
+ .set = pl_cache_set_dir,
+ .priv = s->shader_cache_dir,
+ ));
+ if (!s->cache) {
+ libplacebo_uninit(avctx);
+ return AVERROR(ENOMEM);
+ }
+ }
+#endif
+
if (s->out_format_string) {
s->out_format = av_get_pix_fmt(s->out_format_string);
if (s->out_format == AV_PIX_FMT_NONE) {
@@ -676,6 +696,9 @@ static int init_vulkan(AVFilterContext *avctx, const
AVVulkanDeviceContext *hwct
}
s->gpu = s->vulkan->gpu;
+#if PL_API_VER >= 351
+ pl_gpu_set_cache(s->gpu, s->cache);
+#endif
/* Parse the user shaders, if requested */
if (s->shader_bin_len)
@@ -714,6 +737,9 @@ static void libplacebo_uninit(AVFilterContext *avctx)
av_freep(&s->inputs);
}
+#if PL_API_VER >= 351
+ pl_cache_destroy(&s->cache);
+#endif
pl_options_free(&s->opts);
pl_vulkan_destroy(&s->vulkan);
pl_log_destroy(&s->log);
@@ -1328,6 +1354,9 @@ static const AVOption libplacebo_options[] = {
{ "fillcolor", "Background fill color", OFFSET(fillcolor),
AV_OPT_TYPE_COLOR, {.str = "black@0"}, .flags = DYNAMIC },
{ "corner_rounding", "Corner rounding radius", OFFSET(corner_rounding),
AV_OPT_TYPE_FLOAT, {.dbl = 0.0}, 0.0, 1.0, .flags = DYNAMIC },
{ "extra_opts", "Pass extra libplacebo-specific options using a
:-separated list of key=value pairs", OFFSET(extra_opts), AV_OPT_TYPE_DICT,
.flags = DYNAMIC },
+#if PL_API_VER >= 351
+ { "shader_cache_dir", "Set shader cache directory",
OFFSET(shader_cache_dir), AV_OPT_TYPE_STRING, {.str=""}, .flags = STATIC },
+#endif
{"colorspace", "select colorspace", OFFSET(colorspace), AV_OPT_TYPE_INT,
{.i64=-1}, -1, AVCOL_SPC_NB-1, DYNAMIC, .unit = "colorspace"},
{"auto", "keep the same colorspace", 0, AV_OPT_TYPE_CONST, {.i64=-1},
INT_MIN, INT_MAX, STATIC, .unit = "colorspace"},
--
2.49.0
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