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-rw-r--r--Changelog1
-rw-r--r--doc/filters.texi29
-rw-r--r--libavfilter/Makefile1
-rw-r--r--libavfilter/allfilters.c1
-rw-r--r--libavfilter/avfilter.h2
-rw-r--r--libavfilter/vf_frei0r.c121
6 files changed, 144 insertions, 11 deletions
diff --git a/Changelog b/Changelog
index 486978f2bb..5890aa79d2 100644
--- a/Changelog
+++ b/Changelog
@@ -60,6 +60,7 @@ version <next>:
- rename aspect filter to setdar, and pixelaspect to setsar
- IEC 61937 demuxer
- Mobotix .mxg demuxer
+- frei0r source added
version 0.6:
diff --git a/doc/filters.texi b/doc/filters.texi
index 1cba2d684d..c939b8766c 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -283,6 +283,7 @@ The following command:
will convert the input video to the format "yuv420p".
+@anchor{frei0r}
@section frei0r
Apply a frei0r effect to the input video.
@@ -869,6 +870,34 @@ respectively 352 and 288 (corresponding to the CIF size format).
timebase. The expression can contain the constants "PI", "E", "PHI",
"AVTB" (the default timebase), and defaults to the value "AVTB".
+@section frei0r_src
+
+Provide a frei0r source.
+
+To enable compilation of this filter you need to install the frei0r
+header and configure FFmpeg with --enable-frei0r.
+
+The source supports the syntax:
+@example
+@var{size}:@var{rate}:@var{src_name}[@{=|:@}@var{param1}:@var{param2}:...:@var{paramN}]
+@end example
+
+@var{size} is the size of the video to generate, may be a string of the
+form @var{width}x@var{height} or a frame size abbreviation.
+@var{rate} is the rate of the video to generate, may be a string of
+the form @var{num}/@var{den} or a frame rate abbreviation.
+@var{src_name} is the name to the frei0r source to load. For more
+information regarding frei0r and how to set the parameters read the
+section "frei0r" (@pxref{frei0r}) in the description of the video
+filters.
+
+Some examples follow:
+@example
+# generate a frei0r partik0l source with size 200x200 and framerate 10
+# which is overlayed on the overlay filter main input
+frei0r_src=200x200:10:partik0l=1234 [overlay]; [in][overlay] overlay
+@end example
+
@c man end VIDEO SOURCES
@chapter Video Sinks
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 210510f668..792e845838 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -46,6 +46,7 @@ OBJS-$(CONFIG_YADIF_FILTER) += vf_yadif.o
OBJS-$(CONFIG_BUFFER_FILTER) += vsrc_buffer.o
OBJS-$(CONFIG_COLOR_FILTER) += vf_pad.o
+OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o
OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_nullsrc.o
OBJS-$(CONFIG_NULLSINK_FILTER) += vsink_nullsink.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index c3067b85a6..4ecb00eb21 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -67,6 +67,7 @@ void avfilter_register_all(void)
REGISTER_FILTER (BUFFER, buffer, vsrc);
REGISTER_FILTER (COLOR, color, vsrc);
+ REGISTER_FILTER (FREI0R, frei0r_src, vsrc);
REGISTER_FILTER (NULLSRC, nullsrc, vsrc);
REGISTER_FILTER (NULLSINK, nullsink, vsink);
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index c5a52e8ce6..f7aaf7fb6d 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -25,7 +25,7 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 1
-#define LIBAVFILTER_VERSION_MINOR 65
+#define LIBAVFILTER_VERSION_MINOR 66
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_frei0r.c b/libavfilter/vf_frei0r.c
index a0e27bb62f..235b37a776 100644
--- a/libavfilter/vf_frei0r.c
+++ b/libavfilter/vf_frei0r.c
@@ -27,6 +27,7 @@
#include <dlfcn.h>
#include <frei0r.h>
#include "libavutil/avstring.h"
+#include "libavcore/imgutils.h"
#include "libavcore/parseutils.h"
#include "avfilter.h"
@@ -54,6 +55,11 @@ typedef struct Frei0rContext {
f0r_destruct_f destruct;
f0r_deinit_f deinit;
char params[256];
+
+ /* only used by the source */
+ int w, h;
+ AVRational time_base;
+ uint64_t pts;
} Frei0rContext;
static void *load_sym(AVFilterContext *ctx, const char *sym_name)
@@ -197,18 +203,14 @@ static void *load_path(AVFilterContext *ctx, const char *prefix, const char *nam
return dlopen(path, RTLD_NOW|RTLD_LOCAL);
}
-static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int frei0r_init(AVFilterContext *ctx,
+ const char *dl_name, int type)
{
Frei0rContext *frei0r = ctx->priv;
f0r_init_f f0r_init;
f0r_get_plugin_info_f f0r_get_plugin_info;
f0r_plugin_info_t *pi;
- char dl_name[1024], *path;
-
- *frei0r->params = 0;
-
- if (args)
- sscanf(args, "%1023[^:]:%255c", dl_name, frei0r->params);
+ char *path;
/* see: http://piksel.org/frei0r/1.2/spec/1.2/spec/group__pluglocations.html */
if ((path = av_strdup(getenv("FREI0R_PATH")))) {
@@ -250,9 +252,10 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
f0r_get_plugin_info(&frei0r->plugin_info);
pi = &frei0r->plugin_info;
- if (pi->plugin_type != F0R_PLUGIN_TYPE_FILTER) {
+ if (pi->plugin_type != type) {
av_log(ctx, AV_LOG_ERROR,
- "Invalid type '%s' for the plugin, a filter plugin was expected\n",
+ "Invalid type '%s' for the plugin\n",
+ pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
@@ -271,6 +274,18 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
return 0;
}
+static av_cold int filter_init(AVFilterContext *ctx, const char *args, void *opaque)
+{
+ Frei0rContext *frei0r = ctx->priv;
+ char dl_name[1024];
+ *frei0r->params = 0;
+
+ if (args)
+ sscanf(args, "%1023[^:]:%255c", dl_name, frei0r->params);
+
+ return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_FILTER);
+}
+
static av_cold void uninit(AVFilterContext *ctx)
{
Frei0rContext *frei0r = ctx->priv;
@@ -344,7 +359,7 @@ AVFilter avfilter_vf_frei0r = {
.description = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."),
.query_formats = query_formats,
- .init = init,
+ .init = filter_init,
.uninit = uninit,
.priv_size = sizeof(Frei0rContext),
@@ -361,3 +376,89 @@ AVFilter avfilter_vf_frei0r = {
.type = AVMEDIA_TYPE_VIDEO, },
{ .name = NULL}},
};
+
+static av_cold int source_init(AVFilterContext *ctx, const char *args, void *opaque)
+{
+ Frei0rContext *frei0r = ctx->priv;
+ char dl_name[1024], c;
+ char frame_size[128] = "";
+ char frame_rate[128] = "";
+ AVRational frame_rate_q;
+
+ memset(frei0r->params, 0, sizeof(frei0r->params));
+
+ if (args)
+ sscanf(args, "%127[^:]:%127[^:]:%1023[^:=]%c%255c",
+ frame_size, frame_rate, dl_name, &c, frei0r->params);
+
+ if (av_parse_video_size(&frei0r->w, &frei0r->h, frame_size) < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", frame_size);
+ return AVERROR(EINVAL);
+ }
+
+ if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 ||
+ frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", frame_rate);
+ return AVERROR(EINVAL);
+ }
+ frei0r->time_base.num = frame_rate_q.den;
+ frei0r->time_base.den = frame_rate_q.num;
+
+ return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_SOURCE);
+}
+
+static int source_config_props(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ Frei0rContext *frei0r = ctx->priv;
+
+ if (av_image_check_size(frei0r->w, frei0r->h, 0, ctx) < 0)
+ return AVERROR(EINVAL);
+ outlink->w = frei0r->w;
+ outlink->h = frei0r->h;
+ outlink->time_base = frei0r->time_base;
+
+ if (!(frei0r->instance = frei0r->construct(outlink->w, outlink->h))) {
+ av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance");
+ return AVERROR(EINVAL);
+ }
+
+ return set_params(ctx, frei0r->params);
+}
+
+static int source_request_frame(AVFilterLink *outlink)
+{
+ Frei0rContext *frei0r = outlink->src->priv;
+ AVFilterBufferRef *picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+ picref->video->pixel_aspect = (AVRational) {1, 1};
+ picref->pts = frei0r->pts++;
+ picref->pos = -1;
+
+ avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
+ frei0r->update(frei0r->instance, av_rescale_q(picref->pts, frei0r->time_base, (AVRational){1,1000}),
+ NULL, (uint32_t *)picref->data[0]);
+ avfilter_draw_slice(outlink, 0, outlink->h, 1);
+ avfilter_end_frame(outlink);
+ avfilter_unref_buffer(picref);
+
+ return 0;
+}
+
+AVFilter avfilter_vsrc_frei0r_src = {
+ .name = "frei0r_src",
+ .description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."),
+
+ .priv_size = sizeof(Frei0rContext),
+ .init = source_init,
+ .uninit = uninit,
+
+ .query_formats = query_formats,
+
+ .inputs = (AVFilterPad[]) {{ .name = NULL}},
+
+ .outputs = (AVFilterPad[]) {{ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .request_frame = source_request_frame,
+ .config_props = source_config_props },
+ { .name = NULL}},
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-16 18:32:08 +0000